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revision 575 by schoenebeck, Tue May 24 03:26:22 2005 UTC revision 1006 by schoenebeck, Fri Dec 29 20:27:15 2006 UTC
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4  LinuxSampler Developers                                   C. Schoenebeck  LinuxSampler Developers                                   C. Schoenebeck
5  Internet-Draft                           Interessengemeinschaft Software  Internet-Draft                           Interessengemeinschaft Software
6  Expires: November 22, 2005                             Engineering e. V.  Intended status: Standards Track                       Engineering e. V.
7                                                              May 24, 2005  Expires: July 2, 2007                                  December 29, 2006
8    
9    
10                       LinuxSampler Control Protocol                       LinuxSampler Control Protocol
11                                  LSCP 1.0                                  LSCP 1.2
12    
13  Status of this Memo  Status of this Memo
14    
15     This document is an Internet-Draft and is in full conformance with     By submitting this Internet-Draft, each author represents that any
16     all provisions of Section 10 of RFC2026.     applicable patent or other IPR claims of which he or she is aware
17       have been or will be disclosed, and any of which he or she becomes
18       aware will be disclosed, in accordance with Section 6 of BCP 79.
19    
20     Internet-Drafts are working documents of the Internet Engineering     Internet-Drafts are working documents of the Internet Engineering
21     Task Force (IETF), its areas, and its working groups.  Note that     Task Force (IETF), its areas, and its working groups.  Note that
22     other groups may also distribute working documents as     other groups may also distribute working documents as Internet-
23     Internet-Drafts.     Drafts.
24    
25     Internet-Drafts are draft documents valid for a maximum of six months     Internet-Drafts are draft documents valid for a maximum of six months
26     and may be updated, replaced, or obsoleted by other documents at any     and may be updated, replaced, or obsoleted by other documents at any
# Line 30  Status of this Memo Line 33  Status of this Memo
33     The list of Internet-Draft Shadow Directories can be accessed at     The list of Internet-Draft Shadow Directories can be accessed at
34     http://www.ietf.org/shadow.html.     http://www.ietf.org/shadow.html.
35    
36     This Internet-Draft will expire on November 22, 2005.     This Internet-Draft will expire on July 2, 2007.
37    
38  Copyright Notice  Copyright Notice
39    
40     Copyright (C) The Internet Society (2005).  All Rights Reserved.     Copyright (C) The Internet Society (2006).
41    
 Abstract  
42    
    The LinuxSampler Control Protocol (LSCP) is an application-level  
    protocol primarily intended for local and remote controlling the  
    LinuxSampler backend application, which is a sophisticated  
    server-like console application essentially playing back audio  
    samples and manipulating the samples in real time to certain extent.  
43    
44    
45    
# Line 52  Abstract Line 49  Abstract
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51    
52  Schoenebeck            Expires November 22, 2005                [Page 1]  
53    
54    
55    Schoenebeck               Expires July 2, 2007                  [Page 1]
56    
57  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
58    
59    
60    Abstract
61    
62       The LinuxSampler Control Protocol (LSCP) is an application-level
63       protocol primarily intended for local and remote controlling the
64       LinuxSampler backend application, which is a sophisticated server-
65       like console application essentially playing back audio samples and
66       manipulating the samples in real time to certain extent.
67    
68    
69  Table of Contents  Table of Contents
70    
71     1.   Requirements notation  . . . . . . . . . . . . . . . . . . .   4     1.  Requirements notation . . . . . . . . . . . . . . . . . . . .   5
72     2.   Versioning of this specification . . . . . . . . . . . . . .   5     2.  Versioning of this specification  . . . . . . . . . . . . . .   6
73     3.   Introduction . . . . . . . . . . . . . . . . . . . . . . . .   6     3.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   7
74     4.   Focus of this protocol . . . . . . . . . . . . . . . . . . .   7     4.  Focus of this protocol  . . . . . . . . . . . . . . . . . . .   8
75     5.   Communication Overview . . . . . . . . . . . . . . . . . . .   8     5.  Communication Overview  . . . . . . . . . . . . . . . . . . .   9
76       5.1  Request/response communication method  . . . . . . . . . .   8       5.1.  Request/response communication method . . . . . . . . . .   9
77         5.1.1  Result format  . . . . . . . . . . . . . . . . . . . .   9         5.1.1.  Result format . . . . . . . . . . . . . . . . . . . .  10
78       5.2  Subscribe/notify communication method  . . . . . . . . . .  10       5.2.  Subscribe/notify communication method . . . . . . . . . .  12
79     6.   Description for control commands . . . . . . . . . . . . . .  13     6.  Description for control commands  . . . . . . . . . . . . . .  14
80       6.1  Ignored lines and comments . . . . . . . . . . . . . . . .  13       6.1.  Ignored lines and comments  . . . . . . . . . . . . . . .  14
81       6.2  Configuring audio drivers  . . . . . . . . . . . . . . . .  13       6.2.  Configuring audio drivers . . . . . . . . . . . . . . . .  14
82         6.2.1  Getting amount of available audio output drivers . . .  13         6.2.1.  Getting amount of available audio output drivers  . .  15
83         6.2.2  Getting all available audio output drivers . . . . . .  14         6.2.2.  Getting all available audio output drivers  . . . . .  15
84         6.2.3  Getting information about a specific audio output         6.2.3.  Getting information about a specific audio output
85                driver . . . . . . . . . . . . . . . . . . . . . . . .  14                 driver  . . . . . . . . . . . . . . . . . . . . . . .  15
86         6.2.4  Getting information about specific audio output         6.2.4.  Getting information about specific audio output
87                driver parameter . . . . . . . . . . . . . . . . . . .  15                 driver parameter  . . . . . . . . . . . . . . . . . .  16
88         6.2.5  Creating an audio output device  . . . . . . . . . . .  18         6.2.5.  Creating an audio output device . . . . . . . . . . .  20
89         6.2.6  Destroying an audio output device  . . . . . . . . . .  18         6.2.6.  Destroying an audio output device . . . . . . . . . .  21
90         6.2.7  Getting all created audio output device count  . . . .  19         6.2.7.  Getting all created audio output device count . . . .  22
91         6.2.8  Getting all created audio output device list . . . . .  19         6.2.8.  Getting all created audio output device list  . . . .  22
92         6.2.9  Getting current settings of an audio output device . .  20         6.2.9.  Getting current settings of an audio output device  .  22
93         6.2.10   Changing settings of audio output devices  . . . . .  21         6.2.10. Changing settings of audio output devices . . . . . .  24
94         6.2.11   Getting information about an audio channel . . . . .  21         6.2.11. Getting information about an audio channel  . . . . .  25
95         6.2.12   Getting information about specific audio channel         6.2.12. Getting information about specific audio channel
96                  parameter  . . . . . . . . . . . . . . . . . . . . .  23                 parameter . . . . . . . . . . . . . . . . . . . . . .  26
97         6.2.13   Changing settings of audio output channels . . . . .  24         6.2.13. Changing settings of audio output channels  . . . . .  28
98       6.3  Configuring MIDI input drivers . . . . . . . . . . . . . .  25       6.3.  Configuring MIDI input drivers  . . . . . . . . . . . . .  29
99         6.3.1  Getting amount of available MIDI input drivers . . . .  26         6.3.1.  Getting amount of available MIDI input drivers  . . .  30
100         6.3.2  Getting all available MIDI input drivers . . . . . . .  26         6.3.2.  Getting all available MIDI input drivers  . . . . . .  30
101         6.3.3  Getting information about a specific MIDI input         6.3.3.  Getting information about a specific MIDI input
102                driver . . . . . . . . . . . . . . . . . . . . . . . .  26                 driver  . . . . . . . . . . . . . . . . . . . . . . .  31
103         6.3.4  Getting information about specific MIDI input         6.3.4.  Getting information about specific MIDI input
104                driver parameter . . . . . . . . . . . . . . . . . . .  27                 driver parameter  . . . . . . . . . . . . . . . . . .  32
105         6.3.5  Creating a MIDI input device . . . . . . . . . . . . .  29         6.3.5.  Creating a MIDI input device  . . . . . . . . . . . .  34
106         6.3.6  Destroying a MIDI input device . . . . . . . . . . . .  30         6.3.6.  Destroying a MIDI input device  . . . . . . . . . . .  35
107         6.3.7  Getting all created MIDI input device count  . . . . .  30         6.3.7.  Getting all created MIDI input device count . . . . .  36
108         6.3.8  Getting all created MIDI input device list . . . . . .  31  
109         6.3.9  Getting current settings of a MIDI input device  . . .  31  
110         6.3.10   Changing settings of MIDI input devices  . . . . . .  32  
111         6.3.11   Getting information about a MIDI port  . . . . . . .  33  Schoenebeck               Expires July 2, 2007                  [Page 2]
112         6.3.12   Getting information about specific MIDI port  
113                  parameter  . . . . . . . . . . . . . . . . . . . . .  33  Internet-Draft        LinuxSampler Control Protocol        December 2006
114         6.3.13   Changing settings of MIDI input ports  . . . . . . .  35  
115       6.4  Configuring sampler channels . . . . . . . . . . . . . . .  35  
116         6.4.1  Loading an instrument  . . . . . . . . . . . . . . . .  35         6.3.8.  Getting all created MIDI input device list  . . . . .  36
117           6.3.9.  Getting current settings of a MIDI input device . . .  37
118           6.3.10. Changing settings of MIDI input devices . . . . . . .  38
119           6.3.11. Getting information about a MIDI port . . . . . . . .  38
120  Schoenebeck            Expires November 22, 2005                [Page 2]         6.3.12. Getting information about specific MIDI port
121                   parameter . . . . . . . . . . . . . . . . . . . . . .  39
122  Internet-Draft       LinuxSampler Control Protocol              May 2005         6.3.13. Changing settings of MIDI input ports . . . . . . . .  41
123         6.4.  Configuring sampler channels  . . . . . . . . . . . . . .  42
124           6.4.1.  Loading an instrument . . . . . . . . . . . . . . . .  42
125         6.4.2  Loading a sampler engine . . . . . . . . . . . . . . .  36         6.4.2.  Loading a sampler engine  . . . . . . . . . . . . . .  43
126         6.4.3  Getting all created sampler channel count  . . . . . .  37         6.4.3.  Getting all created sampler channel count . . . . . .  44
127         6.4.4  Getting all created sampler channel list . . . . . . .  37         6.4.4.  Getting all created sampler channel list  . . . . . .  44
128         6.4.5  Adding a new sampler channel . . . . . . . . . . . . .  38         6.4.5.  Adding a new sampler channel  . . . . . . . . . . . .  44
129         6.4.6  Removing a sampler channel . . . . . . . . . . . . . .  39         6.4.6.  Removing a sampler channel  . . . . . . . . . . . . .  45
130         6.4.7  Getting amount of available engines  . . . . . . . . .  39         6.4.7.  Getting amount of available engines . . . . . . . . .  46
131         6.4.8  Getting all available engines  . . . . . . . . . . . .  39         6.4.8.  Getting all available engines . . . . . . . . . . . .  46
132         6.4.9  Getting information about an engine  . . . . . . . . .  40         6.4.9.  Getting information about an engine . . . . . . . . .  47
133         6.4.10   Getting sampler channel information  . . . . . . . .  41         6.4.10. Getting sampler channel information . . . . . . . . .  48
134         6.4.11   Current number of active voices  . . . . . . . . . .  42         6.4.11. Current number of active voices . . . . . . . . . . .  51
135         6.4.12   Current number of active disk streams  . . . . . . .  43         6.4.12. Current number of active disk streams . . . . . . . .  51
136         6.4.13   Current fill state of disk stream buffers  . . . . .  43         6.4.13. Current fill state of disk stream buffers . . . . . .  52
137         6.4.14   Setting audio output device  . . . . . . . . . . . .  44         6.4.14. Setting audio output device . . . . . . . . . . . . .  53
138         6.4.15   Setting audio output type  . . . . . . . . . . . . .  45         6.4.15. Setting audio output type . . . . . . . . . . . . . .  53
139         6.4.16   Setting audio output channel . . . . . . . . . . . .  45         6.4.16. Setting audio output channel  . . . . . . . . . . . .  54
140         6.4.17   Setting MIDI input device  . . . . . . . . . . . . .  46         6.4.17. Setting MIDI input device . . . . . . . . . . . . . .  55
141         6.4.18   Setting MIDI input type  . . . . . . . . . . . . . .  46         6.4.18. Setting MIDI input type . . . . . . . . . . . . . . .  56
142         6.4.19   Setting MIDI input port  . . . . . . . . . . . . . .  47         6.4.19. Setting MIDI input port . . . . . . . . . . . . . . .  56
143         6.4.20   Setting MIDI input channel . . . . . . . . . . . . .  48         6.4.20. Setting MIDI input channel  . . . . . . . . . . . . .  57
144         6.4.21   Setting channel volume . . . . . . . . . . . . . . .  48         6.4.21. Setting channel volume  . . . . . . . . . . . . . . .  58
145         6.4.22   Resetting a sampler channel  . . . . . . . . . . . .  49         6.4.22. Muting a sampler channel  . . . . . . . . . . . . . .  58
146       6.5  Controlling connection . . . . . . . . . . . . . . . . . .  49         6.4.23. Soloing a sampler channel . . . . . . . . . . . . . .  59
147         6.5.1  Register front-end for receiving event messages  . . .  49         6.4.24. Assigning a MIDI instrument map to a sampler
148         6.5.2  Unregister front-end for not receiving event                 channel . . . . . . . . . . . . . . . . . . . . . . .  60
149                messages . . . . . . . . . . . . . . . . . . . . . . .  50         6.4.25. Adding an effect send to a sampler channel  . . . . .  61
150         6.5.3  Enable or disable echo of commands . . . . . . . . . .  51         6.4.26. Removing an effect send from a sampler channel  . . .  62
151         6.5.4  Close client connection  . . . . . . . . . . . . . . .  51         6.4.27. Getting amount of effect sends on a sampler channel .  63
152       6.6  Global commands  . . . . . . . . . . . . . . . . . . . . .  51         6.4.28. Listing all effect sends on a sampler channel . . . .  63
153         6.6.1  Reset sampler  . . . . . . . . . . . . . . . . . . . .  51         6.4.29. Getting effect send information . . . . . . . . . . .  64
154         6.6.2  General sampler informations . . . . . . . . . . . . .  52         6.4.30. Altering effect send's audio routing  . . . . . . . .  65
155     7.   Command Syntax . . . . . . . . . . . . . . . . . . . . . . .  53         6.4.31. Resetting a sampler channel . . . . . . . . . . . . .  66
156     8.   Events . . . . . . . . . . . . . . . . . . . . . . . . . . .  58       6.5.  Controlling connection  . . . . . . . . . . . . . . . . .  66
157       8.1  Number of sampler channels changed . . . . . . . . . . . .  58         6.5.1.  Register front-end for receiving event messages . . .  66
158       8.2  Number of active voices changed  . . . . . . . . . . . . .  58         6.5.2.  Unregister front-end for not receiving event
159       8.3  Number of active disk streams changed  . . . . . . . . . .  58                 messages  . . . . . . . . . . . . . . . . . . . . . .  67
160       8.4  Disk stream buffer fill state changed  . . . . . . . . . .  59         6.5.3.  Enable or disable echo of commands  . . . . . . . . .  68
161       8.5  Channel information changed  . . . . . . . . . . . . . . .  59         6.5.4.  Close client connection . . . . . . . . . . . . . . .  68
162       8.6  Miscellaneous and debugging events . . . . . . . . . . . .  59       6.6.  Global commands . . . . . . . . . . . . . . . . . . . . .  69
163     9.   Security Considerations  . . . . . . . . . . . . . . . . . .  61         6.6.1.  Current number of active voices . . . . . . . . . . .  69
164     10.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . .  62  
165     11.  References . . . . . . . . . . . . . . . . . . . . . . . . .  62  
166          Author's Address . . . . . . . . . . . . . . . . . . . . . .  62  
167          Intellectual Property and Copyright Statements . . . . . . .  63  Schoenebeck               Expires July 2, 2007                  [Page 3]
168    
169    Internet-Draft        LinuxSampler Control Protocol        December 2006
170    
171    
172           6.6.2.  Maximum amount of active voices . . . . . . . . . . .  69
173           6.6.3.  Reset sampler . . . . . . . . . . . . . . . . . . . .  69
174           6.6.4.  General sampler informations  . . . . . . . . . . . .  70
175           6.6.5.  Getting global volume attenuation . . . . . . . . . .  70
176           6.6.6.  Setting global volume attenuation . . . . . . . . . .  71
177         6.7.  MIDI Instrument Mapping . . . . . . . . . . . . . . . . .  71
178           6.7.1.  Create a new MIDI instrument map  . . . . . . . . . .  72
179           6.7.2.  Delete one particular or all MIDI instrument maps . .  73
180           6.7.3.  Get amount of existing MIDI instrument maps . . . . .  73
181           6.7.4.  Getting all created MIDI instrument maps  . . . . . .  74
182           6.7.5.  Getting MIDI instrument map information . . . . . . .  74
183           6.7.6.  Renaming a MIDI instrument map  . . . . . . . . . . .  75
184           6.7.7.  Create or replace a MIDI instrument map entry . . . .  75
185           6.7.8.  Getting ammount of MIDI instrument map entries  . . .  78
186           6.7.9.  Getting indeces of all entries of a MIDI
187                   instrument map  . . . . . . . . . . . . . . . . . . .  79
188           6.7.10. Remove an entry from the MIDI instrument map  . . . .  79
189           6.7.11. Get current settings of MIDI instrument map entry . .  80
190           6.7.12. Clear MIDI instrument map . . . . . . . . . . . . . .  82
191       7.  Command Syntax  . . . . . . . . . . . . . . . . . . . . . . .  83
192       8.  Events  . . . . . . . . . . . . . . . . . . . . . . . . . . .  94
193         8.1.  Number of audio output devices changed  . . . . . . . . .  94
194         8.2.  Audio output device's settings changed  . . . . . . . . .  94
195         8.3.  Number of MIDI input devices changed  . . . . . . . . . .  94
196         8.4.  MIDI input device's settings changed  . . . . . . . . . .  95
197         8.5.  Number of sampler channels changed  . . . . . . . . . . .  95
198         8.6.  Number of active voices changed . . . . . . . . . . . . .  95
199         8.7.  Number of active disk streams changed . . . . . . . . . .  96
200         8.8.  Disk stream buffer fill state changed . . . . . . . . . .  96
201         8.9.  Channel information changed . . . . . . . . . . . . . . .  96
202         8.10. Total number of active voices changed . . . . . . . . . .  97
203         8.11. Number of MIDI instrument maps changed  . . . . . . . . .  97
204         8.12. MIDI instrument map information changed . . . . . . . . .  97
205         8.13. Number of MIDI instruments changed  . . . . . . . . . . .  98
206         8.14. MIDI instrument information changed . . . . . . . . . . .  98
207         8.15. Miscellaneous and debugging events  . . . . . . . . . . .  99
208       9.  Security Considerations . . . . . . . . . . . . . . . . . . . 100
209       10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 101
210       11. References  . . . . . . . . . . . . . . . . . . . . . . . . . 102
211       Author's Address  . . . . . . . . . . . . . . . . . . . . . . . . 103
212       Intellectual Property and Copyright Statements  . . . . . . . . . 104
213    
214    
215    
216    
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219    
220    
221    
222  Schoenebeck            Expires November 22, 2005                [Page 3]  
223    Schoenebeck               Expires July 2, 2007                  [Page 4]
224    
225  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
226    
227    
228  1.  Requirements notation  1.  Requirements notation
# Line 178  Internet-Draft       LinuxSampler Contro Line 234  Internet-Draft       LinuxSampler Contro
234     This protocol is always case-sensitive if not explicitly claimed the     This protocol is always case-sensitive if not explicitly claimed the
235     opposite.     opposite.
236    
237     In examples, "C:" and "S:" indicate lines sent by the client     In examples, "C:" and "S:" indicate lines sent by the client (front-
238     (front-end) and server (LinuxSampler) respectively.  Lines in     end) and server (LinuxSampler) respectively.  Lines in examples must
239     examples must be interpreted as every line being CRLF terminated     be interpreted as every line being CRLF terminated (carriage return
240     (carriage return character followed by line feed character as defined     character followed by line feed character as defined in the ASCII
241     in the ASCII standard), thus the following example:     standard), thus the following example:
242    
243        C: "some line"        C: "some line"
244    
245           "another line"           "another line"
246    
247     must actually be interpreted as client sending the following message:     must actually be interpreted as client sending the following message:
# Line 203  Internet-Draft       LinuxSampler Contro Line 260  Internet-Draft       LinuxSampler Contro
260     sequence scenario:     sequence scenario:
261    
262     o  server sending message "a"     o  server sending message "a"
263    
264     o  followed by a delay (pause) with arbitrary duration     o  followed by a delay (pause) with arbitrary duration
265    
266     o  followed by server sending message "bcd<CR>"     o  followed by server sending message "bcd<CR>"
267    
268     o  again followed by a delay (pause) with arbitrary duration     o  again followed by a delay (pause) with arbitrary duration
269    
270     o  followed by server sending the message "<LF>"     o  followed by server sending the message "<LF>"
271    
272     where again <CR> and <LF> symbolize the carriage return and line feed     where again <CR> and <LF> symbolize the carriage return and line feed
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276    
277    
278    
279    Schoenebeck               Expires July 2, 2007                  [Page 5]
   
   
   
   
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280    
281  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
282    
283    
284  2.  Versioning of this specification  2.  Versioning of this specification
# Line 246  Internet-Draft       LinuxSampler Contro Line 302  Internet-Draft       LinuxSampler Contro
302    
303     1.  The frontend's LSCP major version and the sampler's LSCP major     1.  The frontend's LSCP major version and the sampler's LSCP major
304         version are exactly equal.         version are exactly equal.
305    
306     2.  The frontend's LSCP minor version is less or equal than the     2.  The frontend's LSCP minor version is less or equal than the
307         sampler's LSCP minor version.         sampler's LSCP minor version.
308    
309     Compatibility can only be claimed if both rules are true.  The     Compatibility can only be claimed if both rules are true.  The
310     frontend can use the "GET SERVER INFO" (Section 6.6.2) command to get     frontend can use the "GET SERVER INFO" (Section 6.6.4) command to get
311     the version of the LSCP specification the sampler complies with.     the version of the LSCP specification the sampler complies with.
312    
313    
# Line 275  Internet-Draft       LinuxSampler Contro Line 332  Internet-Draft       LinuxSampler Contro
332    
333    
334    
335    Schoenebeck               Expires July 2, 2007                  [Page 6]
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336    
337  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
338    
339    
340  3.  Introduction  3.  Introduction
# Line 291  Internet-Draft       LinuxSampler Contro Line 347  Internet-Draft       LinuxSampler Contro
347     virtual channels which will be referred in this document as "sampler     virtual channels which will be referred in this document as "sampler
348     channels".  The channels are in such way virtual as they can be     channels".  The channels are in such way virtual as they can be
349     connected to an arbitrary MIDI input method and arbitrary MIDI     connected to an arbitrary MIDI input method and arbitrary MIDI
350     channel (e.g.  sampler channel 17 could be connected to an ALSA     channel (e.g. sampler channel 17 could be connected to an ALSA
351     sequencer device 64:0 and listening to MIDI channel 1 there).  Each     sequencer device 64:0 and listening to MIDI channel 1 there).  Each
352     sampler channel will be associated with an instance of one of the     sampler channel will be associated with an instance of one of the
353     available sampler engines (e.g.  GigEngine, DLSEngine).  The audio     available sampler engines (e.g.  GigEngine, DLSEngine).  The audio
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388    
389    
390    
391  Schoenebeck            Expires November 22, 2005                [Page 6]  Schoenebeck               Expires July 2, 2007                  [Page 7]
392    
393  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
394    
395    
396  4.  Focus of this protocol  4.  Focus of this protocol
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444    
445    
446    
447  Schoenebeck            Expires November 22, 2005                [Page 7]  Schoenebeck               Expires July 2, 2007                  [Page 8]
448    
449  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
450    
451    
452  5.  Communication Overview  5.  Communication Overview
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461     more effort to be implemented in the front-end application.  The two     more effort to be implemented in the front-end application.  The two
462     communication methods will be described next.     communication methods will be described next.
463    
464  5.1  Request/response communication method  5.1.  Request/response communication method
465    
466     This simple communication method is based on TCP [RFC793].  The     This simple communication method is based on TCP [RFC793].  The
467     front-end application establishes a TCP connection to the     front-end application establishes a TCP connection to the
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500    
501    
502    
503  Schoenebeck            Expires November 22, 2005                [Page 8]  Schoenebeck               Expires July 2, 2007                  [Page 9]
504    
505  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
506    
507    
508  5.1.1  Result format  5.1.1.  Result format
509    
510     Result set could be one of the following types:     Result set could be one of the following types:
511    
512     1.  Normal     1.  Normal
513    
514     2.  Warning     2.  Warning
515    
516     3.  Error     3.  Error
517    
518     Warning and Error result sets MUST be single line and have the     Warning and Error result sets MUST be single line and have the
519     following format:     following format:
520    
521     o  "WRN:<warning-code>:<warning-message>"     o  "WRN:<warning-code>:<warning-message>"
522    
523     o  "ERR:<error-code>:<error-message>"     o  "ERR:<error-code>:<error-message>"
524    
525     Where <warning-code> and <error-code> are numeric unique identifiers     Where <warning-code> and <error-code> are numeric unique identifiers
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529     Examples:     Examples:
530    
531        C: "LOAD INSTRUMENT '/home/me/Boesendorfer24bit.gig" 0 0        C: "LOAD INSTRUMENT '/home/me/Boesendorfer24bit.gig" 0 0
532    
533        S: "WRN:32:This is a 24 bit patch which is not supported natively        S: "WRN:32:This is a 24 bit patch which is not supported natively
534        yet."        yet."
535    
536        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA EAR"        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA EAR"
537    
538        S: "ERR:3456:Audio output driver 'ALSA' does not have a parameter        S: "ERR:3456:Audio output driver 'ALSA' does not have a parameter
539        'EAR'."        'EAR'."
540    
541        C: "GET AUDIO_OUTPUT_DEVICE INFO 123456"        C: "GET AUDIO_OUTPUT_DEVICE INFO 123456"
542    
543        S: "ERR:9:There is no audio output device with index 123456."        S: "ERR:9:There is no audio output device with index 123456."
544    
545     Normal result sets could be:     Normal result sets could be:
546    
547     1.  Empty     1.  Empty
548    
549     2.  Single line     2.  Single line
550    
551     3.  Multi-line     3.  Multi-line
552    
553     Empty result set is issued when the server only needed to acknowledge     Empty result set is issued when the server only needed to acknowledge
554     the fact that the request was received and it was processed     the fact that the request was received and it was processed
555     successfully and no additional information is available.  This result     successfully and no additional information is available.  This result
    set has the following format:  
556    
       "OK"  
557    
    Example:  
558    
559        C: "SET AUDIO_OUTPUT_DEVICE_PARAMETER 0 CHANNELS=4"  Schoenebeck               Expires July 2, 2007                 [Page 10]
560    
561    Internet-Draft        LinuxSampler Control Protocol        December 2006
562    
563    
564       set has the following format:
565    
566          "OK"
567    
568  Schoenebeck            Expires November 22, 2005                [Page 9]     Example:
   
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569    
570          C: "SET AUDIO_OUTPUT_DEVICE_PARAMETER 0 CHANNELS=4"
571    
572        S: "OK"        S: "OK"
573    
# Line 517  Internet-Draft       LinuxSampler Contro Line 581  Internet-Draft       LinuxSampler Contro
581     Example:     Example:
582    
583        C: "GET AUDIO_OUTPUT_DEVICE INFO 0"        C: "GET AUDIO_OUTPUT_DEVICE INFO 0"
584    
585        S: "DRIVER: ALSA"        S: "DRIVER: ALSA"
586    
587           "CHANNELS: 2"           "CHANNELS: 2"
588    
589           "SAMPLERATE: 44100"           "SAMPLERATE: 44100"
590    
591           "ACTIVE: true"           "ACTIVE: true"
592    
593           "FRAGMENTS: 2"           "FRAGMENTS: 2"
594    
595           "FRAGMENTSIZE: 128"           "FRAGMENTSIZE: 128"
596    
597           "CARD: '0,0'"           "CARD: '0,0'"
598    
599           "."           "."
600    
601     In addition to above mentioned formats, warnings and empty result     In addition to above mentioned formats, warnings and empty result
# Line 531  Internet-Draft       LinuxSampler Contro Line 603  Internet-Draft       LinuxSampler Contro
603     respectively:     respectively:
604    
605     o  "WRN[<index>]:<warning-code>:<warning-message>"     o  "WRN[<index>]:<warning-code>:<warning-message>"
606    
607     o  "OK[<index>]"     o  "OK[<index>]"
608    
609     where <index> is command specific and is used to indicate channel     where <index> is command specific and is used to indicate channel
610     number that the result set was related to or other integer value.     number that the result set was related to or other integer value.
611    
612    
613    
614    
615    Schoenebeck               Expires July 2, 2007                 [Page 11]
616    
617    Internet-Draft        LinuxSampler Control Protocol        December 2006
618    
619    
620     Each line of the result set MUST end with <CRLF>.     Each line of the result set MUST end with <CRLF>.
621    
622     Examples:     Examples:
623    
624        C: "ADD CHANNEL"        C: "ADD CHANNEL"
625    
626        S: "OK[12]"        S: "OK[12]"
627    
628        C: "CREATE AUDIO_OUTPUT_DEVICE ALSA SAMPLERATE=96000"        C: "CREATE AUDIO_OUTPUT_DEVICE ALSA SAMPLERATE=96000"
629    
630        S: "WRN[0]:32:Sample rate not supported, using 44100 instead."        S: "WRN[0]:32:Sample rate not supported, using 44100 instead."
631    
632  5.2  Subscribe/notify communication method  5.2.  Subscribe/notify communication method
633    
634     This more sophisticated communication method is actually only an     This more sophisticated communication method is actually only an
635     extension of the simple request/response communication method.  The     extension of the simple request/response communication method.  The
636     front-end still uses a TCP connection and sends the same commands on     front-end still uses a TCP connection and sends the same commands on
637     the TCP connection.  Two extra commands are SUBSCRIBE and UNSUBSCRIBE     the TCP connection.  Two extra commands are SUBSCRIBE and UNSUBSCRIBE
638     commands that allow a client to tell the server that it is interested     commands that allow a client to tell the server that it is interested
   
   
   
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639     in receiving notifications about certain events as they happen on the     in receiving notifications about certain events as they happen on the
640     server.  The SUBSCRIBE command has the following syntax:     server.  The SUBSCRIBE command has the following syntax:
641    
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658    
659     1.  Events MUST NOT be sent to any client who has not issued an     1.  Events MUST NOT be sent to any client who has not issued an
660         appropriate SUBSCRIBE command.         appropriate SUBSCRIBE command.
661    
662     2.  Events MUST only be sent using the same connection that was used     2.  Events MUST only be sent using the same connection that was used
663         to subscribe to them.         to subscribe to them.
664    
665     3.  When response is being sent to the client, event MUST be inserted     3.  When response is being sent to the client, event MUST be inserted
666         in the stream before or after the response, but NOT in the         in the stream before or after the response, but NOT in the
667         middle.  Same is true about the response.  It should never be         middle.  Same is true about the response.  It should never be
668    
669    
670    
671    Schoenebeck               Expires July 2, 2007                 [Page 12]
672    
673    Internet-Draft        LinuxSampler Control Protocol        December 2006
674    
675    
676         inserted in the middle of the event message as well as any other         inserted in the middle of the event message as well as any other
677         response.         response.
678    
# Line 610  Internet-Draft       LinuxSampler Contro Line 695  Internet-Draft       LinuxSampler Contro
695     channel 4, where the stream with ID "35" is filled by 62%, stream     channel 4, where the stream with ID "35" is filled by 62%, stream
696     with ID 33 is filled by 80% and stream with ID 37 is filled by 98%.     with ID 33 is filled by 80% and stream with ID 37 is filled by 98%.
697    
   
   
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698     Clients may choose to open more than one connection to the server and     Clients may choose to open more than one connection to the server and
699     use some connections to receive notifications while using other     use some connections to receive notifications while using other
700     connections to issue commands to the back-end.  This is entirely     connections to issue commands to the back-end.  This is entirely
# Line 646  Internet-Draft       LinuxSampler Contro Line 724  Internet-Draft       LinuxSampler Contro
724    
725    
726    
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728    
729  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
730    
731    
732  6.  Description for control commands  6.  Description for control commands
733    
734     This chapter will describe the available control commands that can be     This chapter will describe the available control commands that can be
735     sent on the TCP connection in detail.  Some certain commands (e.g.     sent on the TCP connection in detail.  Some certain commands (e.g.
736     "GET CHANNEL INFO" (Section 6.4.10) or "GET ENGINE INFO" (Section     "GET CHANNEL INFO" (Section 6.4.10) or "GET ENGINE INFO"
737     6.4.9)) lead to multiple-line responses.  In this case LinuxSampler     (Section 6.4.9)) lead to multiple-line responses.  In this case
738     signals the end of the response by a "." (single dot) line.     LinuxSampler signals the end of the response by a "." (single dot)
739       line.
740    
741  6.1  Ignored lines and comments  6.1.  Ignored lines and comments
742    
743     White lines, that is lines which only contain space and tabulator     White lines, that is lines which only contain space and tabulator
744     characters, and lines that start with a "#" character are ignored,     characters, and lines that start with a "#" character are ignored,
745     thus it's possible for example to group commands and to place     thus it's possible for example to group commands and to place
746     comments in a LSCP script file.     comments in a LSCP script file.
747    
748  6.2  Configuring audio drivers  6.2.  Configuring audio drivers
749    
750     Instances of drivers in LinuxSampler are called devices.  You can use     Instances of drivers in LinuxSampler are called devices.  You can use
751     multiple audio devices simultaneously, e.g.  to output the sound of     multiple audio devices simultaneously, e.g. to output the sound of
752     one sampler channel using the ALSA audio output driver, and on     one sampler channel using the ALSA audio output driver, and on
753     another sampler channel you might want to use the JACK audio output     another sampler channel you might want to use the JACK audio output
754     driver.  For particular audio output systems it's also possible to     driver.  For particular audio output systems it's also possible to
755     create several devices of the same audio output driver, e.g.  two     create several devices of the same audio output driver, e.g. two
756     separate ALSA audio output devices for using two different sound     separate ALSA audio output devices for using two different sound
757     cards at the same time.  This chapter describes all commands to     cards at the same time.  This chapter describes all commands to
758     configure LinuxSampler's audio output devices and their parameters.     configure LinuxSampler's audio output devices and their parameters.
# Line 705  Internet-Draft       LinuxSampler Contro Line 762  Internet-Draft       LinuxSampler Contro
762     values have to be obtained at runtime.  This makes the protocol a bit     values have to be obtained at runtime.  This makes the protocol a bit
763     abstract, but has the advantage, that front-ends can be written     abstract, but has the advantage, that front-ends can be written
764     independently of what drivers are currently implemented and what     independently of what drivers are currently implemented and what
765     parameters these drivers are actually offering.  This means     parameters these drivers are actually offering.  This means front-
766     front-ends can even handle drivers which are implemented somewhere in     ends can even handle drivers which are implemented somewhere in
767     future without modifying the front-end at all.     future without modifying the front-end at all.
768    
769     Note: examples in this chapter showing particular parameters of     Note: examples in this chapter showing particular parameters of
# Line 717  Internet-Draft       LinuxSampler Contro Line 774  Internet-Draft       LinuxSampler Contro
774     retrieve what parameters drivers are offering, how to retrieve their     retrieve what parameters drivers are offering, how to retrieve their
775     possible values, etc.     possible values, etc.
776    
 6.2.1  Getting amount of available audio output drivers  
777    
    Use the following command to get the number of audio output drivers  
    currently available for the LinuxSampler instance:  
778    
779    
780    
781  Schoenebeck            Expires November 22, 2005               [Page 13]  
782    
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784    
785  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
786    
787    
788    6.2.1.  Getting amount of available audio output drivers
789    
790       Use the following command to get the number of audio output drivers
791       currently available for the LinuxSampler instance:
792    
793        GET AVAILABLE_AUDIO_OUTPUT_DRIVERS        GET AVAILABLE_AUDIO_OUTPUT_DRIVERS
794    
# Line 739  Internet-Draft       LinuxSampler Contro Line 800  Internet-Draft       LinuxSampler Contro
800     Example:     Example:
801    
802        C: "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS"        C: "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS"
803    
804        S: "2"        S: "2"
805    
806  6.2.2  Getting all available audio output drivers  6.2.2.  Getting all available audio output drivers
807    
808     Use the following command to list all audio output drivers currently     Use the following command to list all audio output drivers currently
809     available for the LinuxSampler instance:     available for the LinuxSampler instance:
# Line 756  Internet-Draft       LinuxSampler Contro Line 818  Internet-Draft       LinuxSampler Contro
818     Example:     Example:
819    
820        C: "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS"        C: "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS"
821    
822        S: "ALSA,JACK"        S: "ALSA,JACK"
823    
824  6.2.3  Getting information about a specific audio output driver  6.2.3.  Getting information about a specific audio output driver
825    
826     Use the following command to get detailed information about a     Use the following command to get detailed information about a
827     specific audio output driver:     specific audio output driver:
# Line 771  Internet-Draft       LinuxSampler Contro Line 834  Internet-Draft       LinuxSampler Contro
834    
835     Possible Answers:     Possible Answers:
836    
837    
838    
839    Schoenebeck               Expires July 2, 2007                 [Page 15]
840    
841    Internet-Draft        LinuxSampler Control Protocol        December 2006
842    
843    
844        LinuxSampler will answer by sending a <CRLF> separated list.  Each        LinuxSampler will answer by sending a <CRLF> separated list.  Each
845        answer line begins with the information category name followed by        answer line begins with the information category name followed by
846        a colon and then a space character <SP> and finally the info        a colon and then a space character <SP> and finally the info
# Line 779  Internet-Draft       LinuxSampler Contro Line 849  Internet-Draft       LinuxSampler Contro
849    
850    
851    
   
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852           DESCRIPTION -           DESCRIPTION -
853    
854              character string describing the audio output driver              character string describing the audio output driver
855    
856           VERSION -           VERSION -
857    
858              character string reflecting the driver's version              character string reflecting the driver's version
859    
860           PARAMETERS -           PARAMETERS -
861    
862              comma separated list of all parameters available for the              comma separated list of all parameters available for the
863              given audio output driver, at least parameters 'channels',              given audio output driver, at least parameters 'channels',
864              'samplerate' and 'active' are offered by all audio output              'samplerate' and 'active' are offered by all audio output
865              drivers              drivers
866    
867        The mentioned fields above don't have to be in particular order.        The mentioned fields above don't have to be in particular order.
868    
869     Example:     Example:
870    
871        C: "GET AUDIO_OUTPUT_DRIVER INFO ALSA"        C: "GET AUDIO_OUTPUT_DRIVER INFO ALSA"
872    
873        S: "DESCRIPTION: Advanced Linux Sound Architecture"        S: "DESCRIPTION: Advanced Linux Sound Architecture"
874    
875           "VERSION: 1.0"           "VERSION: 1.0"
876    
877           "PARAMETERS: DRIVER,CHANNELS,SAMPLERATE,ACTIVE,FRAGMENTS,           "PARAMETERS: DRIVER,CHANNELS,SAMPLERATE,ACTIVE,FRAGMENTS,
878        FRAGMENTSIZE,CARD"        FRAGMENTSIZE,CARD"
879    
880           "."           "."
881    
882  6.2.4  Getting information about specific audio output driver parameter  6.2.4.  Getting information about specific audio output driver parameter
883    
884     Use the following command to get detailed information about a     Use the following command to get detailed information about a
885     specific audio output driver parameter:     specific audio output driver parameter:
# Line 816  Internet-Draft       LinuxSampler Contro Line 889  Internet-Draft       LinuxSampler Contro
889     Where <audio> is the name of the audio output driver as returned by     Where <audio> is the name of the audio output driver as returned by
890     the "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" (Section 6.2.2) command,     the "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" (Section 6.2.2) command,
891     <prm> a specific parameter name for which information should be     <prm> a specific parameter name for which information should be
892     obtained (as returned by the "GET AUDIO_OUTPUT_DRIVER INFO" (Section  
893     6.2.3) command) and <deplist> is an optional list of parameters on  
894     which the sought parameter <prm> depends on, <deplist> is a list of  
895     key-value pairs in form of "key1=val1 key2=val2 ...", where character  Schoenebeck               Expires July 2, 2007                 [Page 16]
896     string values are encapsulated into apostrophes (').  Arguments given  
897     with <deplist> which are not dependency parameters of <prm> will be  Internet-Draft        LinuxSampler Control Protocol        December 2006
898     ignored, means the front-end application can simply put all  
899     parameters into <deplist> with the values already selected by the  
900       obtained (as returned by the "GET AUDIO_OUTPUT_DRIVER INFO"
901       (Section 6.2.3) command) and <deplist> is an optional list of
902       parameters on which the sought parameter <prm> depends on, <deplist>
903       is a list of key-value pairs in form of "key1=val1 key2=val2 ...",
904       where character string values are encapsulated into apostrophes (').
905       Arguments given with <deplist> which are not dependency parameters of
906       <prm> will be ignored, means the front-end application can simply put
907       all parameters into <deplist> with the values already selected by the
908     user.     user.
909    
910     Possible Answers:     Possible Answers:
# Line 833  Internet-Draft       LinuxSampler Contro Line 914  Internet-Draft       LinuxSampler Contro
914        a colon and then a space character <SP> and finally the info        a colon and then a space character <SP> and finally the info
915        character string to that info category.  There are information        character string to that info category.  There are information
916        which is always returned, independently of the given driver        which is always returned, independently of the given driver
   
   
   
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917        parameter and there are optional information which is only shown        parameter and there are optional information which is only shown
918        dependently to given driver parameter.  At the moment the        dependently to given driver parameter.  At the moment the
919        following information categories are defined:        following information categories are defined:
920    
921        TYPE -        TYPE -
922    
923           either "BOOL" for boolean value(s) or "INT" for integer           either "BOOL" for boolean value(s) or "INT" for integer
924           value(s) or "FLOAT" for dotted number(s) or "STRING" for           value(s) or "FLOAT" for dotted number(s) or "STRING" for
925           character string(s) (always returned, no matter which driver           character string(s) (always returned, no matter which driver
926           parameter)           parameter)
927    
928        DESCRIPTION -        DESCRIPTION -
929    
930           arbitrary text describing the purpose of the parameter (always           arbitrary text describing the purpose of the parameter (always
931           returned, no matter which driver parameter)           returned, no matter which driver parameter)
932    
933        MANDATORY -        MANDATORY -
934    
935           either true or false, defines if this parameter must be given           either true or false, defines if this parameter must be given
936           when the device is to be created with the 'CREATE           when the device is to be created with the 'CREATE
937           AUDIO_OUTPUT_DEVICE' (Section 6.2.5) command (always returned,           AUDIO_OUTPUT_DEVICE' (Section 6.2.5) command (always returned,
938           no matter which driver parameter)           no matter which driver parameter)
939    
940        FIX -        FIX -
941    
942           either true or false, if false then this parameter can be           either true or false, if false then this parameter can be
943           changed at any time, once the device is created by the 'CREATE           changed at any time, once the device is created by the 'CREATE
944           AUDIO_OUTPUT_DEVICE' (Section 6.2.5) command (always returned,           AUDIO_OUTPUT_DEVICE' (Section 6.2.5) command (always returned,
945           no matter which driver parameter)           no matter which driver parameter)
946    
947    
948    
949    
950    
951    Schoenebeck               Expires July 2, 2007                 [Page 17]
952    
953    Internet-Draft        LinuxSampler Control Protocol        December 2006
954    
955    
956        MULTIPLICITY -        MULTIPLICITY -
957    
958           either true or false, defines if this parameter allows only one           either true or false, defines if this parameter allows only one
959           value or a list of values, where true means multiple values and           value or a list of values, where true means multiple values and
960           false only a single value allowed (always returned, no matter           false only a single value allowed (always returned, no matter
961           which driver parameter)           which driver parameter)
962    
963        DEPENDS -        DEPENDS -
964    
965           comma separated list of parameters this parameter depends on,           comma separated list of parameters this parameter depends on,
966           means the values for fields 'DEFAULT', 'RANGE_MIN', 'RANGE_MAX'           means the values for fields 'DEFAULT', 'RANGE_MIN', 'RANGE_MAX'
967           and 'POSSIBILITIES' might depend on these listed parameters,           and 'POSSIBILITIES' might depend on these listed parameters,
# Line 878  Internet-Draft       LinuxSampler Contro Line 971  Internet-Draft       LinuxSampler Contro
971           possible values for 'samplerate' depends on the sound card           possible values for 'samplerate' depends on the sound card
972           which can be chosen by the 'card' parameter (optionally           which can be chosen by the 'card' parameter (optionally
973           returned, dependent to driver parameter)           returned, dependent to driver parameter)
974    
975        DEFAULT -        DEFAULT -
976    
977           reflects the default value for this parameter which is used           reflects the default value for this parameter which is used
978           when the device is created and not explicitly given with the           when the device is created and not explicitly given with the
979           'CREATE AUDIO_OUTPUT_DEVICE' (Section 6.2.5) command, in case           'CREATE AUDIO_OUTPUT_DEVICE' (Section 6.2.5) command, in case
980           of MULTIPLCITY=true, this is a comma separated list, that's why           of MULTIPLCITY=true, this is a comma separated list, that's why
981           character strings are encapsulated into apostrophes (')           character strings are encapsulated into apostrophes (')
982           (optionally returned, dependent to driver parameter)           (optionally returned, dependent to driver parameter)
983    
984        RANGE_MIN -        RANGE_MIN -
985    
986           defines lower limit of the allowed value range for this           defines lower limit of the allowed value range for this
987           parameter, can be an integer value as well as a dotted number,           parameter, can be an integer value as well as a dotted number,
988           this parameter is often used in conjunction with RANGE_MAX, but           this parameter is often used in conjunction with RANGE_MAX, but
   
   
   
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989           may also appear without (optionally returned, dependent to           may also appear without (optionally returned, dependent to
990           driver parameter)           driver parameter)
991    
992        RANGE_MAX -        RANGE_MAX -
993    
994           defines upper limit of the allowed value range for this           defines upper limit of the allowed value range for this
995           parameter, can be an integer value as well as a dotted number,           parameter, can be an integer value as well as a dotted number,
996           this parameter is often used in conjunction with RANGE_MIN, but           this parameter is often used in conjunction with RANGE_MIN, but
997           may also appear without (optionally returned, dependent to           may also appear without (optionally returned, dependent to
998           driver parameter)           driver parameter)
999    
1000        POSSIBILITIES -        POSSIBILITIES -
1001    
1002           comma separated list of possible values for this parameter,           comma separated list of possible values for this parameter,
1003           character strings are encapsulated into apostrophes (optionally           character strings are encapsulated into apostrophes (optionally
1004    
1005    
1006    
1007    Schoenebeck               Expires July 2, 2007                 [Page 18]
1008    
1009    Internet-Draft        LinuxSampler Control Protocol        December 2006
1010    
1011    
1012           returned, dependent to driver parameter)           returned, dependent to driver parameter)
1013    
1014     The mentioned fields above don't have to be in particular order.     The mentioned fields above don't have to be in particular order.
# Line 915  Internet-Draft       LinuxSampler Contro Line 1016  Internet-Draft       LinuxSampler Contro
1016     Examples:     Examples:
1017    
1018        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA CARD"        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA CARD"
1019    
1020        S: "DESCRIPTION: sound card to be used"        S: "DESCRIPTION: sound card to be used"
1021    
1022           "TYPE: STRING"           "TYPE: STRING"
1023    
1024           "MANDATORY: false"           "MANDATORY: false"
1025    
1026           "FIX: true"           "FIX: true"
1027    
1028           "MULTIPLICITY: false"           "MULTIPLICITY: false"
1029    
1030           "DEFAULT: '0,0'"           "DEFAULT: '0,0'"
1031    
1032           "POSSIBILITIES: '0,0','1,0','2,0'"           "POSSIBILITIES: '0,0','1,0','2,0'"
1033    
1034           "."           "."
1035    
1036        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA SAMPLERATE"        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA SAMPLERATE"
1037    
1038        S: "DESCRIPTION: output sample rate in Hz"        S: "DESCRIPTION: output sample rate in Hz"
1039    
1040           "TYPE: INT"           "TYPE: INT"
1041    
1042           "MANDATORY: false"           "MANDATORY: false"
1043    
1044           "FIX: false"           "FIX: false"
1045    
1046           "MULTIPLICITY: false"           "MULTIPLICITY: false"
1047    
1048           "DEPENDS: card"           "DEPENDS: card"
1049    
1050           "DEFAULT: 44100"           "DEFAULT: 44100"
1051    
1052           "."           "."
1053    
1054        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA SAMPLERATE        C: "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO ALSA SAMPLERATE
1055        CARD='0,0'"        CARD='0,0'"
1056    
1057        S: "DESCRIPTION: output sample rate in Hz"        S: "DESCRIPTION: output sample rate in Hz"
1058    
1059    
1060    
1061    
1062    
1063    Schoenebeck               Expires July 2, 2007                 [Page 19]
1064    
1065    Internet-Draft        LinuxSampler Control Protocol        December 2006
1066    
1067    
1068           "TYPE: INT"           "TYPE: INT"
1069    
1070           "MANDATORY: false"           "MANDATORY: false"
          "FIX: false"  
          "MULTIPLICITY: false"  
          "DEPENDS: card"  
          "DEFAULT: 44100"  
          "RANGE_MIN: 22050"  
1071    
1072             "FIX: false"
1073    
1074             "MULTIPLICITY: false"
1075    
1076             "DEPENDS: card"
1077    
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1079    
1080             "RANGE_MIN: 22050"
1081    
1082           "RANGE_MAX: 96000"           "RANGE_MAX: 96000"
1083    
1084           "."           "."
1085    
1086  6.2.5  Creating an audio output device  6.2.5.  Creating an audio output device
1087    
1088     Use the following command to create a new audio output device for     Use the following command to create a new audio output device for the
1089     the desired audio output system:     desired audio output system:
1090    
1091        CREATE AUDIO_OUTPUT_DEVICE <audio-output-driver> [<param-list>]        CREATE AUDIO_OUTPUT_DEVICE <audio-output-driver> [<param-list>]
1092    
1093     Where <audio-output-driver> should be replaced by the desired audio     Where <audio-output-driver> should be replaced by the desired audio
1094     output system as returned by the "LIST     output system as returned by the "LIST
1095     AVAILABLE_AUDIO_OUTPUT_DRIVERS" (Section 6.2.2) command and     AVAILABLE_AUDIO_OUTPUT_DRIVERS" (Section 6.2.2) command and <param-
1096     <param-list> by an optional list of driver specific parameters in     list> by an optional list of driver specific parameters in form of
1097     form of "key1=val1 key2=val2 ...", where character string values     "key1=val1 key2=val2 ...", where character string values should be
1098     should be encapsulated into apostrophes (').  Note that there might     encapsulated into apostrophes (').  Note that there might be drivers
1099     be drivers which require parameter(s) to be given with this command.     which require parameter(s) to be given with this command.  Use the
1100     Use the previously described commands in this chapter to get this     previously described commands in this chapter to get this
1101     information.     information.
1102    
1103     Possible Answers:     Possible Answers:
1104    
1105        "OK[<device-id>]" -        "OK[<device-id>]" -
1106    
1107           in case the device was successfully created, where <device-id>           in case the device was successfully created, where <device-id>
1108           is the numerical ID of the new device           is the numerical ID of the new device
1109    
1110        "WRN[<device-id>]:<warning-code>:<warning-message>" -        "WRN[<device-id>]:<warning-code>:<warning-message>" -
1111    
1112           in case the device was created successfully, where <device-id>           in case the device was created successfully, where <device-id>
1113           is the numerical ID of the new device, but there are noteworthy           is the numerical ID of the new device, but there are noteworthy
1114           issue(s) related (e.g.  sound card doesn't support given           issue(s) related (e.g. sound card doesn't support given
1115           hardware parameters and the driver is using fall-back values),           hardware parameters and the driver is using fall-back values),
1116    
1117    
1118    
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1120    
1121    Internet-Draft        LinuxSampler Control Protocol        December 2006
1122    
1123    
1124           providing an appropriate warning code and warning message           providing an appropriate warning code and warning message
1125    
1126        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
1127    
1128           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
1129           error message           error message
1130    
1131     Examples:     Examples:
1132    
1133        C: "CREATE AUDIO_OUTPUT_DEVICE ALSA"        C: "CREATE AUDIO_OUTPUT_DEVICE ALSA"
1134    
1135        S: "OK[0]"        S: "OK[0]"
1136    
1137        C: "CREATE AUDIO_OUTPUT_DEVICE ALSA CARD='2,0' SAMPLERATE=96000"        C: "CREATE AUDIO_OUTPUT_DEVICE ALSA CARD='2,0' SAMPLERATE=96000"
1138    
1139        S: "OK[1]"        S: "OK[1]"
1140    
1141  6.2.6  Destroying an audio output device  6.2.6.  Destroying an audio output device
1142    
1143     Use the following command to destroy a created output device:     Use the following command to destroy a created output device:
1144    
   
   
   
   
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1145        DESTROY AUDIO_OUTPUT_DEVICE <device-id>        DESTROY AUDIO_OUTPUT_DEVICE <device-id>
1146    
1147     Where <device-id> should be replaced by the numerical ID of the audio     Where <device-id> should be replaced by the numerical ID of the audio
1148     output device as given by the "CREATE AUDIO_OUTPUT_DEVICE" (Section     output device as given by the "CREATE AUDIO_OUTPUT_DEVICE"
1149     6.2.5) or "LIST AUDIO_OUTPUT_DEVICES" (Section 6.2.8) command.     (Section 6.2.5) or "LIST AUDIO_OUTPUT_DEVICES" (Section 6.2.8)
1150       command.
1151    
1152     Possible Answers:     Possible Answers:
1153    
1154        "OK" -        "OK" -
1155    
1156           in case the device was successfully destroyed           in case the device was successfully destroyed
1157    
1158        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
1159    
1160           in case the device was destroyed successfully, but there are           in case the device was destroyed successfully, but there are
1161           noteworthy issue(s) related (e.g.  an audio over ethernet           noteworthy issue(s) related (e.g. an audio over ethernet driver
1162           driver was unloaded but the other host might not be informed           was unloaded but the other host might not be informed about
1163           about this situation), providing an appropriate warning code           this situation), providing an appropriate warning code and
1164           and warning message           warning message
1165    
1166        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
1167    
1168           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
1169           error message           error message
1170    
1171     Example:     Example:
1172    
1173    
1174    
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1176    
1177    Internet-Draft        LinuxSampler Control Protocol        December 2006
1178    
1179    
1180        C: "DESTROY AUDIO_OUTPUT_DEVICE 0"        C: "DESTROY AUDIO_OUTPUT_DEVICE 0"
1181    
1182        S: "OK"        S: "OK"
1183    
1184  6.2.7  Getting all created audio output device count  6.2.7.  Getting all created audio output device count
1185    
1186     Use the following command to count all created audio output devices:     Use the following command to count all created audio output devices:
1187    
# Line 1048  Internet-Draft       LinuxSampler Contro Line 1195  Internet-Draft       LinuxSampler Contro
1195     Example:     Example:
1196    
1197        C: "GET AUDIO_OUTPUT_DEVICES"        C: "GET AUDIO_OUTPUT_DEVICES"
1198    
1199        S: "4"        S: "4"
1200    
1201  6.2.8  Getting all created audio output device list  6.2.8.  Getting all created audio output device list
1202    
1203     Use the following command to list all created audio output devices:     Use the following command to list all created audio output devices:
1204    
# Line 1058  Internet-Draft       LinuxSampler Contro Line 1206  Internet-Draft       LinuxSampler Contro
1206    
1207     Possible Answers:     Possible Answers:
1208    
   
   
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1209        LinuxSampler will answer by sending a comma separated list with        LinuxSampler will answer by sending a comma separated list with
1210        the numerical IDs of all audio output devices.        the numerical IDs of all audio output devices.
1211    
1212     Example:     Example:
1213    
1214        C: "LIST AUDIO_OUTPUT_DEVICES"        C: "LIST AUDIO_OUTPUT_DEVICES"
1215    
1216        S: "0,1,4,5"        S: "0,1,4,5"
1217    
1218  6.2.9  Getting current settings of an audio output device  6.2.9.  Getting current settings of an audio output device
1219    
1220     Use the following command to get current settings of a specific,     Use the following command to get current settings of a specific,
1221     created audio output device:     created audio output device:
# Line 1081  Internet-Draft       LinuxSampler Contro Line 1223  Internet-Draft       LinuxSampler Contro
1223        GET AUDIO_OUTPUT_DEVICE INFO <device-id>        GET AUDIO_OUTPUT_DEVICE INFO <device-id>
1224    
1225     Where <device-id> should be replaced by numerical ID of the audio     Where <device-id> should be replaced by numerical ID of the audio
1226     output device as e.g.  returned by the "LIST AUDIO_OUTPUT_DEVICES"     output device as e.g. returned by the "LIST AUDIO_OUTPUT_DEVICES"
1227     (Section 6.2.8) command.     (Section 6.2.8) command.
1228    
1229    
1230    
1231    Schoenebeck               Expires July 2, 2007                 [Page 22]
1232    
1233    Internet-Draft        LinuxSampler Control Protocol        December 2006
1234    
1235    
1236     Possible Answers:     Possible Answers:
1237    
1238     LinuxSampler will answer by sending a <CRLF> separated list.  Each     LinuxSampler will answer by sending a <CRLF> separated list.  Each
# Line 1095  Internet-Draft       LinuxSampler Contro Line 1244  Internet-Draft       LinuxSampler Contro
1244     (independently of device):     (independently of device):
1245    
1246        DRIVER -        DRIVER -
1247    
1248           identifier of the used audio output driver, as also returned by           identifier of the used audio output driver, as also returned by
1249           the "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" (Section 6.2.2)           the "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" (Section 6.2.2)
1250           command           command
1251    
1252        CHANNELS -        CHANNELS -
1253    
1254           amount of audio output channels this device currently offers           amount of audio output channels this device currently offers
1255    
1256        SAMPLERATE -        SAMPLERATE -
1257    
1258           playback sample rate the device uses           playback sample rate the device uses
1259    
1260        ACTIVE -        ACTIVE -
1261    
1262           either true or false, if false then the audio device is           either true or false, if false then the audio device is
1263           inactive and doesn't output any sound, nor do the sampler           inactive and doesn't output any sound, nor do the sampler
1264           channels connected to this audio device render any audio           channels connected to this audio device render any audio
# Line 1113  Internet-Draft       LinuxSampler Contro Line 1269  Internet-Draft       LinuxSampler Contro
1269     additional driver specific parameters (see Section 6.2.3) which are     additional driver specific parameters (see Section 6.2.3) which are
1270     also returned by this command.     also returned by this command.
1271    
   
   
   
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1272     Example:     Example:
1273    
1274        C: "GET AUDIO_OUTPUT_DEVICE INFO 0"        C: "GET AUDIO_OUTPUT_DEVICE INFO 0"
1275    
1276        S: "DRIVER: ALSA"        S: "DRIVER: ALSA"
1277    
1278           "CHANNELS: 2"           "CHANNELS: 2"
1279    
1280           "SAMPLERATE: 44100"           "SAMPLERATE: 44100"
1281    
1282           "ACTIVE: true"           "ACTIVE: true"
1283    
1284    
1285    
1286    
1287    Schoenebeck               Expires July 2, 2007                 [Page 23]
1288    
1289    Internet-Draft        LinuxSampler Control Protocol        December 2006
1290    
1291    
1292           "FRAGMENTS: 2"           "FRAGMENTS: 2"
1293    
1294           "FRAGMENTSIZE: 128"           "FRAGMENTSIZE: 128"
1295    
1296           "CARD: '0,0'"           "CARD: '0,0'"
1297    
1298           "."           "."
1299    
1300  6.2.10  Changing settings of audio output devices  6.2.10.  Changing settings of audio output devices
1301    
1302     Use the following command to alter a specific setting of a created     Use the following command to alter a specific setting of a created
1303     audio output device:     audio output device:
# Line 1141  Internet-Draft       LinuxSampler Contro Line 1305  Internet-Draft       LinuxSampler Contro
1305        SET AUDIO_OUTPUT_DEVICE_PARAMETER <device-id> <key>=<value>        SET AUDIO_OUTPUT_DEVICE_PARAMETER <device-id> <key>=<value>
1306    
1307     Where <device-id> should be replaced by the numerical ID of the audio     Where <device-id> should be replaced by the numerical ID of the audio
1308     output device as given by the "CREATE AUDIO_OUTPUT_DEVICE" (Section     output device as given by the "CREATE AUDIO_OUTPUT_DEVICE"
1309     6.2.5) or "LIST AUDIO_OUTPUT_DEVICES" (Section 6.2.8) command, <key>     (Section 6.2.5) or "LIST AUDIO_OUTPUT_DEVICES" (Section 6.2.8)
1310     by the name of the parameter to change and <value> by the new value     command, <key> by the name of the parameter to change and <value> by
1311     for this parameter.     the new value for this parameter.
1312    
1313     Possible Answers:     Possible Answers:
1314    
1315        "OK" -        "OK" -
1316    
1317           in case setting was successfully changed           in case setting was successfully changed
1318    
1319        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
1320    
1321           in case setting was changed successfully, but there are           in case setting was changed successfully, but there are
1322           noteworthy issue(s) related, providing an appropriate warning           noteworthy issue(s) related, providing an appropriate warning
1323           code and warning message           code and warning message
1324    
1325        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
1326    
1327           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
1328           error message           error message
1329    
1330     Example:     Example:
1331    
1332        C: "SET AUDIO_OUTPUT_DEVICE_PARAMETER 0 FRAGMENTSIZE=128"        C: "SET AUDIO_OUTPUT_DEVICE_PARAMETER 0 FRAGMENTSIZE=128"
1333    
1334        S: "OK"        S: "OK"
1335    
 6.2.11  Getting information about an audio channel  
1336    
    Use the following command to get information about an audio channel:  
1337    
       GET AUDIO_OUTPUT_CHANNEL INFO <device-id> <audio-chan>  
1338    
1339    
1340    
1341    
1342  Schoenebeck            Expires November 22, 2005               [Page 21]  
1343    Schoenebeck               Expires July 2, 2007                 [Page 24]
1344    
1345  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
1346    
1347    
1348    6.2.11.  Getting information about an audio channel
1349    
1350       Use the following command to get information about an audio channel:
1351    
1352          GET AUDIO_OUTPUT_CHANNEL INFO <device-id> <audio-chan>
1353    
1354     Where <device-id> is the numerical ID of the audio output device as     Where <device-id> is the numerical ID of the audio output device as
1355     given by the "CREATE AUDIO_OUTPUT_DEVICE" (Section 6.2.5) or "LIST     given by the "CREATE AUDIO_OUTPUT_DEVICE" (Section 6.2.5) or "LIST
# Line 1190  Internet-Draft       LinuxSampler Contro Line 1364  Internet-Draft       LinuxSampler Contro
1364        character string to that info category.  At the moment the        character string to that info category.  At the moment the
1365        following information categories are defined:        following information categories are defined:
1366    
1367    
1368    
1369           NAME -           NAME -
1370    
1371              arbitrary character string naming the channel, which doesn't              arbitrary character string naming the channel, which doesn't
1372              have to be unique (always returned by all audio channels)              have to be unique (always returned by all audio channels)
1373    
1374           IS_MIX_CHANNEL -           IS_MIX_CHANNEL -
1375    
1376              either true or false, a mix-channel is not a real,              either true or false, a mix-channel is not a real,
1377              independent audio channel, but a virtual channel which is              independent audio channel, but a virtual channel which is
1378              mixed to another real channel, this mechanism is needed for              mixed to another real channel, this mechanism is needed for
1379              sampler engines which need more audio channels than the used              sampler engines which need more audio channels than the used
1380              audio system might be able to offer (always returned by all              audio system might be able to offer (always returned by all
1381              audio channels)              audio channels)
1382    
1383           MIX_CHANNEL_DESTINATION -           MIX_CHANNEL_DESTINATION -
1384    
1385              numerical ID (positive integer including 0) which reflects              numerical ID (positive integer including 0) which reflects
1386              the real audio channel (of the same audio output device)              the real audio channel (of the same audio output device)
1387              this mix channel refers to, means where the audio signal              this mix channel refers to, means where the audio signal
# Line 1213  Internet-Draft       LinuxSampler Contro Line 1394  Internet-Draft       LinuxSampler Contro
1394     driver.  Every audio channel might have its own, additional driver     driver.  Every audio channel might have its own, additional driver
1395     and channel specific parameters.     and channel specific parameters.
1396    
1397    
1398    
1399    Schoenebeck               Expires July 2, 2007                 [Page 25]
1400    
1401    Internet-Draft        LinuxSampler Control Protocol        December 2006
1402    
1403    
1404     Examples:     Examples:
1405    
1406        C: "GET AUDIO_OUTPUT_CHANNEL INFO 0 0"        C: "GET AUDIO_OUTPUT_CHANNEL INFO 0 0"
1407    
1408        S: "NAME: studio monitor left"        S: "NAME: studio monitor left"
          "IS_MIX_CHANNEL: false"  
          "."  
1409    
       C: "GET AUDIO_OUTPUT_CHANNEL INFO 0 1"  
       S: "NAME: studio monitor right"  
1410           "IS_MIX_CHANNEL: false"           "IS_MIX_CHANNEL: false"
          "."  
1411    
1412             "."
1413    
1414          C: "GET AUDIO_OUTPUT_CHANNEL INFO 0 1"
1415    
1416          S: "NAME: studio monitor right"
1417    
1418  Schoenebeck            Expires November 22, 2005               [Page 22]           "IS_MIX_CHANNEL: false"
   
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1419    
1420             "."
1421    
1422        C: "GET AUDIO_OUTPUT_CHANNEL INFO 0 2"        C: "GET AUDIO_OUTPUT_CHANNEL INFO 0 2"
1423    
1424        S: "NAME: studio monitor left"        S: "NAME: studio monitor left"
1425    
1426           "IS_MIX_CHANNEL: true"           "IS_MIX_CHANNEL: true"
1427    
1428           "MIX_CHANNEL_DESTINATION: 1"           "MIX_CHANNEL_DESTINATION: 1"
1429    
1430           "."           "."
1431    
1432        C: "GET AUDIO_OUTPUT_CHANNEL INFO 1 0"        C: "GET AUDIO_OUTPUT_CHANNEL INFO 1 0"
1433    
1434        S: "NAME: 'ardour (left)'"        S: "NAME: 'ardour (left)'"
1435    
1436           "IS_MIX_CHANNEL: false"           "IS_MIX_CHANNEL: false"
1437    
1438           "JACK_BINDINGS: 'ardour:0'"           "JACK_BINDINGS: 'ardour:0'"
1439    
1440           "."           "."
1441    
1442  6.2.12  Getting information about specific audio channel parameter  6.2.12.  Getting information about specific audio channel parameter
1443    
1444     Use the following command to get detailed information about specific     Use the following command to get detailed information about specific
1445     audio channel parameter:     audio channel parameter:
# Line 1255  Internet-Draft       LinuxSampler Contro Line 1449  Internet-Draft       LinuxSampler Contro
1449     Where <dev-id> is the numerical ID of the audio output device as     Where <dev-id> is the numerical ID of the audio output device as
1450     returned by the "CREATE AUDIO_OUTPUT_DEVICE" (Section 6.2.5) or "LIST     returned by the "CREATE AUDIO_OUTPUT_DEVICE" (Section 6.2.5) or "LIST
1451     AUDIO_OUTPUT_DEVICES" (Section 6.2.8) command, <chan> the audio     AUDIO_OUTPUT_DEVICES" (Section 6.2.8) command, <chan> the audio
1452    
1453    
1454    
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1456    
1457    Internet-Draft        LinuxSampler Control Protocol        December 2006
1458    
1459    
1460     channel number and <param> a specific channel parameter name for     channel number and <param> a specific channel parameter name for
1461     which information should be obtained (as returned by the "GET     which information should be obtained (as returned by the "GET
1462     AUDIO_OUTPUT_CHANNEL INFO" (Section 6.2.11) command).     AUDIO_OUTPUT_CHANNEL INFO" (Section 6.2.11) command).
# Line 1270  Internet-Draft       LinuxSampler Contro Line 1472  Internet-Draft       LinuxSampler Contro
1472        dependently to the given audio channel.  At the moment the        dependently to the given audio channel.  At the moment the
1473        following information categories are defined:        following information categories are defined:
1474    
1475    
1476    
1477           TYPE -           TYPE -
1478    
1479              either "BOOL" for boolean value(s) or "INT" for integer              either "BOOL" for boolean value(s) or "INT" for integer
1480              value(s) or "FLOAT" for dotted number(s) or "STRING" for              value(s) or "FLOAT" for dotted number(s) or "STRING" for
1481              character string(s) (always returned)              character string(s) (always returned)
1482    
1483           DESCRIPTION -           DESCRIPTION -
1484    
1485              arbitrary text describing the purpose of the parameter              arbitrary text describing the purpose of the parameter
1486              (always returned)              (always returned)
1487    
1488           FIX -           FIX -
1489    
1490              either true or false, if true then this parameter is read              either true or false, if true then this parameter is read
1491              only, thus cannot be altered (always returned)              only, thus cannot be altered (always returned)
1492    
   
   
   
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1493           MULTIPLICITY -           MULTIPLICITY -
1494    
1495              either true or false, defines if this parameter allows only              either true or false, defines if this parameter allows only
1496              one value or a list of values, where true means multiple              one value or a list of values, where true means multiple
1497              values and false only a single value allowed (always              values and false only a single value allowed (always
1498              returned)              returned)
1499    
1500           RANGE_MIN -           RANGE_MIN -
1501    
1502              defines lower limit of the allowed value range for this              defines lower limit of the allowed value range for this
1503              parameter, can be an integer value as well as a dotted              parameter, can be an integer value as well as a dotted
1504              number, usually used in conjunction with 'RANGE_MAX', but              number, usually used in conjunction with 'RANGE_MAX', but
1505              may also appear without (optionally returned, dependent to              may also appear without (optionally returned, dependent to
1506              driver and channel parameter)              driver and channel parameter)
1507    
1508    
1509    
1510    
1511    Schoenebeck               Expires July 2, 2007                 [Page 27]
1512    
1513    Internet-Draft        LinuxSampler Control Protocol        December 2006
1514    
1515    
1516           RANGE_MAX -           RANGE_MAX -
1517    
1518              defines upper limit of the allowed value range for this              defines upper limit of the allowed value range for this
1519              parameter, can be an integer value as well as a dotted              parameter, can be an integer value as well as a dotted
1520              number, usually used in conjunction with 'RANGE_MIN', but              number, usually used in conjunction with 'RANGE_MIN', but
1521              may also appear without (optionally returned, dependent to              may also appear without (optionally returned, dependent to
1522              driver and channel parameter)              driver and channel parameter)
1523    
1524           POSSIBILITIES -           POSSIBILITIES -
1525    
1526              comma separated list of possible values for this parameter,              comma separated list of possible values for this parameter,
1527              character strings are encapsulated into apostrophes              character strings are encapsulated into apostrophes
1528              (optionally returned, dependent to driver and channel              (optionally returned, dependent to driver and channel
1529              parameter)              parameter)
1530    
1531        The mentioned fields above don't have to be in particular order.        The mentioned fields above don't have to be in particular order.
1532    
1533     Example:     Example:
1534    
1535        C: "GET AUDIO_OUTPUT_CHANNEL_PARAMETER INFO 1 0 JACK_BINDINGS"        C: "GET AUDIO_OUTPUT_CHANNEL_PARAMETER INFO 1 0 JACK_BINDINGS"
1536    
1537        S: "DESCRIPTION: bindings to other JACK clients"        S: "DESCRIPTION: bindings to other JACK clients"
1538    
1539           "TYPE: STRING"           "TYPE: STRING"
1540    
1541           "FIX: false"           "FIX: false"
1542    
1543           "MULTIPLICITY: true"           "MULTIPLICITY: true"
1544    
1545           "POSSIBILITIES: 'PCM:0','PCM:1','ardour:0','ardour:1'"           "POSSIBILITIES: 'PCM:0','PCM:1','ardour:0','ardour:1'"
1546    
1547           "."           "."
1548    
1549  6.2.13  Changing settings of audio output channels  6.2.13.  Changing settings of audio output channels
1550    
1551     Use the following command to alter a specific setting of an audio     Use the following command to alter a specific setting of an audio
1552     output channel:     output channel:
# Line 1340  Internet-Draft       LinuxSampler Contro Line 1563  Internet-Draft       LinuxSampler Contro
1563    
1564    
1565    
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1567    Schoenebeck               Expires July 2, 2007                 [Page 28]
1568    
1569  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
1570    
1571    
1572        "OK" -        "OK" -
1573    
1574           in case setting was successfully changed           in case setting was successfully changed
1575    
1576        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
1577    
1578           in case setting was changed successfully, but there are           in case setting was changed successfully, but there are
1579           noteworthy issue(s) related, providing an appropriate warning           noteworthy issue(s) related, providing an appropriate warning
1580           code and warning message           code and warning message
1581    
1582        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
1583    
1584           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
1585           error message           error message
1586    
1587     Example:     Example:
1588    
1589        C: "SET AUDIO_OUTPUT_CHANNEL PARAMETER 0 0 JACK_BINDINGS='PCM:0'"        C: "SET AUDIO_OUTPUT_CHANNEL PARAMETER 0 0 JACK_BINDINGS='PCM:0'"
1590    
1591        S: "OK"        S: "OK"
1592    
1593        C: "SET AUDIO_OUTPUT_CHANNEL PARAMETER 0 0 NAME='monitor left'"        C: "SET AUDIO_OUTPUT_CHANNEL PARAMETER 0 0 NAME='monitor left'"
1594    
1595        S: "OK"        S: "OK"
1596    
1597  6.3  Configuring MIDI input drivers  6.3.  Configuring MIDI input drivers
1598    
1599     Instances of drivers in LinuxSampler are called devices.  You can use     Instances of drivers in LinuxSampler are called devices.  You can use
1600     multiple MIDI devices simultaneously, e.g.  to use MIDI over ethernet     multiple MIDI devices simultaneously, e.g. to use MIDI over ethernet
1601     as MIDI input on one sampler channel and ALSA as MIDI input on     as MIDI input on one sampler channel and ALSA as MIDI input on
1602     another sampler channel.  For particular MIDI input systems it's also     another sampler channel.  For particular MIDI input systems it's also
1603     possible to create several devices of the same MIDI input type.  This     possible to create several devices of the same MIDI input type.  This
# Line 1378  Internet-Draft       LinuxSampler Contro Line 1609  Internet-Draft       LinuxSampler Contro
1609     values have to be obtained at runtime.  This makes the protocol a bit     values have to be obtained at runtime.  This makes the protocol a bit
1610     abstract, but has the advantage, that front-ends can be written     abstract, but has the advantage, that front-ends can be written
1611     independently of what drivers are currently implemented and what     independently of what drivers are currently implemented and what
1612     parameters these drivers are actually offering.  This means     parameters these drivers are actually offering.  This means front-
1613     front-ends can even handle drivers which are implemented somewhere in     ends can even handle drivers which are implemented somewhere in
1614     future without modifying the front-end at all.     future without modifying the front-end at all.
1615    
1616     Commands for configuring MIDI input devices are pretty much the same     Commands for configuring MIDI input devices are pretty much the same
1617     as the commands for configuring audio output drivers, already     as the commands for configuring audio output drivers, already
1618     described in the last chapter.     described in the last chapter.
1619    
1620    
1621    
1622    
1623    Schoenebeck               Expires July 2, 2007                 [Page 29]
1624    
1625    Internet-Draft        LinuxSampler Control Protocol        December 2006
1626    
1627    
1628     Note: examples in this chapter showing particular parameters of     Note: examples in this chapter showing particular parameters of
1629     drivers are not meant as specification of the drivers' parameters.     drivers are not meant as specification of the drivers' parameters.
1630     Driver implementations in LinuxSampler might have complete different     Driver implementations in LinuxSampler might have complete different
# Line 1394  Internet-Draft       LinuxSampler Contro Line 1633  Internet-Draft       LinuxSampler Contro
1633     retrieve what parameters drivers are offering, how to retrieve their     retrieve what parameters drivers are offering, how to retrieve their
1634     possible values, etc.     possible values, etc.
1635    
1636    6.3.1.  Getting amount of available MIDI input drivers
   
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 6.3.1  Getting amount of available MIDI input drivers  
1637    
1638     Use the following command to get the number of MIDI input drivers     Use the following command to get the number of MIDI input drivers
1639     currently available for the LinuxSampler instance:     currently available for the LinuxSampler instance:
# Line 1416  Internet-Draft       LinuxSampler Contro Line 1648  Internet-Draft       LinuxSampler Contro
1648     Example:     Example:
1649    
1650        C: "GET AVAILABLE_MIDI_INPUT_DRIVERS"        C: "GET AVAILABLE_MIDI_INPUT_DRIVERS"
1651    
1652        S: "2"        S: "2"
1653    
1654  6.3.2  Getting all available MIDI input drivers  6.3.2.  Getting all available MIDI input drivers
1655    
1656     Use the following command to list all MIDI input drivers currently     Use the following command to list all MIDI input drivers currently
1657     available for the LinuxSampler instance:     available for the LinuxSampler instance:
# Line 1433  Internet-Draft       LinuxSampler Contro Line 1666  Internet-Draft       LinuxSampler Contro
1666     Example:     Example:
1667    
1668        C: "LIST AVAILABLE_MIDI_INPUT_DRIVERS"        C: "LIST AVAILABLE_MIDI_INPUT_DRIVERS"
1669    
1670        S: "ALSA,JACK"        S: "ALSA,JACK"
1671    
1672  6.3.3  Getting information about a specific MIDI input driver  
1673    
1674    
1675    
1676    
1677    
1678    
1679    Schoenebeck               Expires July 2, 2007                 [Page 30]
1680    
1681    Internet-Draft        LinuxSampler Control Protocol        December 2006
1682    
1683    
1684    6.3.3.  Getting information about a specific MIDI input driver
1685    
1686     Use the following command to get detailed information about a     Use the following command to get detailed information about a
1687     specific MIDI input driver:     specific MIDI input driver:
# Line 1448  Internet-Draft       LinuxSampler Contro Line 1694  Internet-Draft       LinuxSampler Contro
1694    
1695     Possible Answers:     Possible Answers:
1696    
   
   
   
   
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1697        LinuxSampler will answer by sending a <CRLF> separated list.  Each        LinuxSampler will answer by sending a <CRLF> separated list.  Each
1698        answer line begins with the information category name followed by        answer line begins with the information category name followed by
1699        a colon and then a space character <SP> and finally the info        a colon and then a space character <SP> and finally the info
1700        character string to that info category.  At the moment the        character string to that info category.  At the moment the
1701        following information categories are defined:        following information categories are defined:
1702    
1703    
1704    
1705           DESCRIPTION -           DESCRIPTION -
1706    
1707              arbitrary description text about the MIDI input driver              arbitrary description text about the MIDI input driver
1708    
1709           VERSION -           VERSION -
1710    
1711              arbitrary character string regarding the driver's version              arbitrary character string regarding the driver's version
1712    
1713           PARAMETERS -           PARAMETERS -
1714    
1715              comma separated list of all parameters available for the              comma separated list of all parameters available for the
1716              given MIDI input driver              given MIDI input driver
1717    
1718        The mentioned fields above don't have to be in particular order.        The mentioned fields above don't have to be in particular order.
1719    
1720     Example:     Example:
1721    
1722        C: "GET MIDI_INPUT_DRIVER INFO ALSA"        C: "GET MIDI_INPUT_DRIVER INFO ALSA"
1723    
1724        S: "DESCRIPTION: Advanced Linux Sound Architecture"        S: "DESCRIPTION: Advanced Linux Sound Architecture"
1725    
1726           "VERSION: 1.0"           "VERSION: 1.0"
1727    
1728           "PARAMETERS: DRIVER,ACTIVE"           "PARAMETERS: DRIVER,ACTIVE"
1729    
1730           "."           "."
1731    
1732  6.3.4  Getting information about specific MIDI input driver parameter  
1733    
1734    
1735    Schoenebeck               Expires July 2, 2007                 [Page 31]
1736    
1737    Internet-Draft        LinuxSampler Control Protocol        December 2006
1738    
1739    
1740    6.3.4.  Getting information about specific MIDI input driver parameter
1741    
1742     Use the following command to get detailed information about a     Use the following command to get detailed information about a
1743     specific parameter of a specific MIDI input driver:     specific parameter of a specific MIDI input driver:
# Line 1505  Internet-Draft       LinuxSampler Contro Line 1762  Internet-Draft       LinuxSampler Contro
1762     answer line begins with the information category name followed by a     answer line begins with the information category name followed by a
1763     colon and then a space character <SP> and finally the info character     colon and then a space character <SP> and finally the info character
1764     string to that info category.  There is information which is always     string to that info category.  There is information which is always
   
   
   
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1765     returned, independent of the given driver parameter and there is     returned, independent of the given driver parameter and there is
1766     optional information which is only shown dependent to given driver     optional information which is only shown dependent to given driver
1767     parameter.  At the moment the following information categories are     parameter.  At the moment the following information categories are
1768     defined:     defined:
1769    
1770        TYPE -        TYPE -
1771    
1772           either "BOOL" for boolean value(s) or "INT" for integer           either "BOOL" for boolean value(s) or "INT" for integer
1773           value(s) or "FLOAT" for dotted number(s) or "STRING" for           value(s) or "FLOAT" for dotted number(s) or "STRING" for
1774           character string(s) (always returned, no matter which driver           character string(s) (always returned, no matter which driver
1775           parameter)           parameter)
1776    
1777        DESCRIPTION -        DESCRIPTION -
1778    
1779           arbitrary text describing the purpose of the parameter (always           arbitrary text describing the purpose of the parameter (always
1780           returned, no matter which driver parameter)           returned, no matter which driver parameter)
1781    
1782        MANDATORY -        MANDATORY -
1783    
1784           either true or false, defines if this parameter must be given           either true or false, defines if this parameter must be given
1785           when the device is to be created with the 'CREATE           when the device is to be created with the 'CREATE
1786           MIDI_INPUT_DEVICE' (Section 6.3.5) command (always returned, no           MIDI_INPUT_DEVICE' (Section 6.3.5) command (always returned, no
1787           matter which driver parameter)           matter which driver parameter)
1788    
1789    
1790    
1791    Schoenebeck               Expires July 2, 2007                 [Page 32]
1792    
1793    Internet-Draft        LinuxSampler Control Protocol        December 2006
1794    
1795    
1796        FIX -        FIX -
1797    
1798           either true or false, if false then this parameter can be           either true or false, if false then this parameter can be
1799           changed at any time, once the device is created by the 'CREATE           changed at any time, once the device is created by the 'CREATE
1800           MIDI_INPUT_DEVICE' (Section 6.3.5) command (always returned, no           MIDI_INPUT_DEVICE' (Section 6.3.5) command (always returned, no
1801           matter which driver parameter)           matter which driver parameter)
1802    
1803        MULTIPLICITY -        MULTIPLICITY -
1804    
1805           either true or false, defines if this parameter allows only one           either true or false, defines if this parameter allows only one
1806           value or a list of values, where true means multiple values and           value or a list of values, where true means multiple values and
1807           false only a single value allowed (always returned, no matter           false only a single value allowed (always returned, no matter
1808           which driver parameter)           which driver parameter)
1809    
1810        DEPENDS -        DEPENDS -
1811    
1812           comma separated list of parameters this parameter depends on,           comma separated list of parameters this parameter depends on,
1813           means the values for fields 'DEFAULT', 'RANGE_MIN', 'RANGE_MAX'           means the values for fields 'DEFAULT', 'RANGE_MIN', 'RANGE_MAX'
1814           and 'POSSIBILITIES' might depend on these listed parameters,           and 'POSSIBILITIES' might depend on these listed parameters,
# Line 1551  Internet-Draft       LinuxSampler Contro Line 1818  Internet-Draft       LinuxSampler Contro
1818           possible values for 'samplerate' depends on the sound card           possible values for 'samplerate' depends on the sound card
1819           which can be chosen by the 'card' parameter (optionally           which can be chosen by the 'card' parameter (optionally
1820           returned, dependent to driver parameter)           returned, dependent to driver parameter)
1821    
1822        DEFAULT -        DEFAULT -
1823    
1824           reflects the default value for this parameter which is used           reflects the default value for this parameter which is used
1825           when the device is created and not explicitly given with the           when the device is created and not explicitly given with the
1826           'CREATE MIDI_INPUT_DEVICE' (Section 6.3.5) command, in case of           'CREATE MIDI_INPUT_DEVICE' (Section 6.3.5) command, in case of
1827           MULTIPLCITY=true, this is a comma separated list, that's why           MULTIPLCITY=true, this is a comma separated list, that's why
1828           character strings are encapsulated into apostrophes (')           character strings are encapsulated into apostrophes (')
1829           (optionally returned, dependent to driver parameter)           (optionally returned, dependent to driver parameter)
1830    
1831        RANGE_MIN -        RANGE_MIN -
1832    
1833           defines lower limit of the allowed value range for this           defines lower limit of the allowed value range for this
1834           parameter, can be an integer value as well as a dotted number,           parameter, can be an integer value as well as a dotted number,
   
   
   
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1835           this parameter is often used in conjunction with RANGE_MAX, but           this parameter is often used in conjunction with RANGE_MAX, but
1836           may also appear without (optionally returned, dependent to           may also appear without (optionally returned, dependent to
1837           driver parameter)           driver parameter)
1838    
1839        RANGE_MAX -        RANGE_MAX -
1840    
1841           defines upper limit of the allowed value range for this           defines upper limit of the allowed value range for this
1842           parameter, can be an integer value as well as a dotted number,           parameter, can be an integer value as well as a dotted number,
1843           this parameter is often used in conjunction with RANGE_MIN, but           this parameter is often used in conjunction with RANGE_MIN, but
1844    
1845    
1846    
1847    Schoenebeck               Expires July 2, 2007                 [Page 33]
1848    
1849    Internet-Draft        LinuxSampler Control Protocol        December 2006
1850    
1851    
1852           may also appear without (optionally returned, dependent to           may also appear without (optionally returned, dependent to
1853           driver parameter)           driver parameter)
1854    
1855        POSSIBILITIES -        POSSIBILITIES -
1856    
1857           comma separated list of possible values for this parameter,           comma separated list of possible values for this parameter,
1858           character strings are encapsulated into apostrophes (optionally           character strings are encapsulated into apostrophes (optionally
1859           returned, dependent to driver parameter)           returned, dependent to driver parameter)
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1863     Example:     Example:
1864    
1865        C: "GET MIDI_INPUT_DRIVER_PARAMETER INFO ALSA ACTIVE"        C: "GET MIDI_INPUT_DRIVER_PARAMETER INFO ALSA ACTIVE"
1866    
1867        S: "DESCRIPTION: Whether device is enabled"        S: "DESCRIPTION: Whether device is enabled"
1868    
1869           "TYPE: BOOL"           "TYPE: BOOL"
1870    
1871           "MANDATORY: false"           "MANDATORY: false"
1872    
1873           "FIX: false"           "FIX: false"
1874    
1875           "MULTIPLICITY: false"           "MULTIPLICITY: false"
1876    
1877           "DEFAULT: true"           "DEFAULT: true"
1878    
1879           "."           "."
1880    
1881  6.3.5  Creating a MIDI input device  6.3.5.  Creating a MIDI input device
1882    
1883     Use the following command to create a new MIDI input device for  the     Use the following command to create a new MIDI input device for the
1884     desired MIDI input system:     desired MIDI input system:
1885    
1886        CREATE MIDI_INPUT_DEVICE <midi-input-driver> [<param-list>]        CREATE MIDI_INPUT_DEVICE <midi-input-driver> [<param-list>]
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1896    
1897     Possible Answers:     Possible Answers:
1898    
       "OK[<device-id>]" -  
          in case the device was successfully created, where <device-id>  
          is the numerical ID of the new device  
1899    
1900    
1901    
1902  Schoenebeck            Expires November 22, 2005               [Page 29]  
1903    Schoenebeck               Expires July 2, 2007                 [Page 34]
1904    
1905  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
1906    
1907    
1908          "OK[<device-id>]" -
1909    
1910             in case the device was successfully created, where <device-id>
1911             is the numerical ID of the new device
1912    
1913        "WRN[<device-id>]:<warning-code>:<warning-message>" -        "WRN[<device-id>]:<warning-code>:<warning-message>" -
1914    
1915           in case the driver was loaded successfully, where <device-id>           in case the driver was loaded successfully, where <device-id>
1916           is the numerical ID of the new device, but there are noteworthy           is the numerical ID of the new device, but there are noteworthy
1917           issue(s) related, providing an appropriate warning code and           issue(s) related, providing an appropriate warning code and
1918           warning message           warning message
1919    
1920        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
1921    
1922           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
1923           error message           error message
1924    
1925     Example:     Example:
1926    
1927        C: "CREATE MIDI_INPUT_DEVICE ALSA"        C: "CREATE MIDI_INPUT_DEVICE ALSA"
1928    
1929        S: "OK[0]"        S: "OK[0]"
1930    
1931  6.3.6  Destroying a MIDI input device  6.3.6.  Destroying a MIDI input device
1932    
1933     Use the following command to destroy a created MIDI input device:     Use the following command to destroy a created MIDI input device:
1934    
# Line 1652  Internet-Draft       LinuxSampler Contro Line 1941  Internet-Draft       LinuxSampler Contro
1941     Possible Answers:     Possible Answers:
1942    
1943        "OK" -        "OK" -
1944    
1945           in case the device was successfully destroyed           in case the device was successfully destroyed
1946    
1947        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
1948    
1949           in case the device was destroyed, but there are noteworthy           in case the device was destroyed, but there are noteworthy
1950           issue(s) related, providing an appropriate warning code and           issue(s) related, providing an appropriate warning code and
1951           warning message           warning message
1952    
1953        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
1954    
1955    
1956    
1957    
1958    
1959    Schoenebeck               Expires July 2, 2007                 [Page 35]
1960    
1961    Internet-Draft        LinuxSampler Control Protocol        December 2006
1962    
1963    
1964           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
1965           error message           error message
1966    
1967     Example:     Example:
1968    
1969        C: "DESTROY MIDI_INPUT_DEVICE 0"        C: "DESTROY MIDI_INPUT_DEVICE 0"
1970    
1971        S: "OK"        S: "OK"
1972    
1973  6.3.7  Getting all created MIDI input device count  6.3.7.  Getting all created MIDI input device count
1974    
1975     Use the following command to count all created MIDI input devices:     Use the following command to count all created MIDI input devices:
1976    
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1978    
1979     Possible Answers:     Possible Answers:
1980    
   
   
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1981        LinuxSampler will answer by sending the current number of all MIDI        LinuxSampler will answer by sending the current number of all MIDI
1982        input devices.        input devices.
1983    
1984     Example:     Example:
1985    
1986        C: "GET MIDI_INPUT_DEVICES"        C: "GET MIDI_INPUT_DEVICES"
1987    
1988        S: "3"        S: "3"
1989    
1990  6.3.8  Getting all created MIDI input device list  6.3.8.  Getting all created MIDI input device list
1991    
1992     Use the following command to list all created MIDI input devices:     Use the following command to list all created MIDI input devices:
1993    
# Line 1703  Internet-Draft       LinuxSampler Contro Line 2001  Internet-Draft       LinuxSampler Contro
2001     Examples:     Examples:
2002    
2003        C: "LIST MIDI_INPUT_DEVICES"        C: "LIST MIDI_INPUT_DEVICES"
2004    
2005        S: "0,1,2"        S: "0,1,2"
2006    
2007        C: "LIST MIDI_INPUT_DEVICES"        C: "LIST MIDI_INPUT_DEVICES"
2008    
2009        S: "1,3"        S: "1,3"
2010    
2011  6.3.9  Getting current settings of a MIDI input device  
2012    
2013    
2014    
2015    Schoenebeck               Expires July 2, 2007                 [Page 36]
2016    
2017    Internet-Draft        LinuxSampler Control Protocol        December 2006
2018    
2019    
2020    6.3.9.  Getting current settings of a MIDI input device
2021    
2022     Use the following command to get current settings of a specific,     Use the following command to get current settings of a specific,
2023     created MIDI input device:     created MIDI input device:
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2040    
2041    
2042    
   
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2043           DRIVER -           DRIVER -
2044              identifier of the used MIDI input driver, as e.g.  returned  
2045                identifier of the used MIDI input driver, as e.g. returned
2046              by the "LIST AVAILABLE_MIDI_INPUT_DRIVERS" (Section 6.3.2)              by the "LIST AVAILABLE_MIDI_INPUT_DRIVERS" (Section 6.3.2)
2047              command              command
2048    
2049           ACTIVE -           ACTIVE -
2050    
2051              either true or false, if false then the MIDI device is              either true or false, if false then the MIDI device is
2052              inactive and doesn't listen to any incoming MIDI events and              inactive and doesn't listen to any incoming MIDI events and
2053              thus doesn't forward them to connected sampler channels              thus doesn't forward them to connected sampler channels
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2062     Example:     Example:
2063    
2064        C: "GET MIDI_INPUT_DEVICE INFO 0"        C: "GET MIDI_INPUT_DEVICE INFO 0"
2065    
2066        S: "DRIVER: ALSA"        S: "DRIVER: ALSA"
2067    
2068    
2069    
2070    
2071    Schoenebeck               Expires July 2, 2007                 [Page 37]
2072    
2073    Internet-Draft        LinuxSampler Control Protocol        December 2006
2074    
2075    
2076           "ACTIVE: true"           "ACTIVE: true"
2077    
2078           "."           "."
2079    
2080  6.3.10  Changing settings of MIDI input devices  6.3.10.  Changing settings of MIDI input devices
2081    
2082     Use the following command to alter a specific setting of a created     Use the following command to alter a specific setting of a created
2083     MIDI input device:     MIDI input device:
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2085        SET MIDI_INPUT_DEVICE_PARAMETER <device-id> <key>=<value>        SET MIDI_INPUT_DEVICE_PARAMETER <device-id> <key>=<value>
2086    
2087     Where <device-id> should be replaced by the numerical ID of the MIDI     Where <device-id> should be replaced by the numerical ID of the MIDI
2088     input device as returned by the "CREATE MIDI_INPUT_DEVICE" (Section     input device as returned by the "CREATE MIDI_INPUT_DEVICE"
2089     6.3.5) or "LIST MIDI_INPUT_DEVICES" (Section 6.3.8) command, <key> by     (Section 6.3.5) or "LIST MIDI_INPUT_DEVICES" (Section 6.3.8) command,
2090     the name of the parameter to change and <value> by the new value for     <key> by the name of the parameter to change and <value> by the new
2091     this parameter.     value for this parameter.
2092    
2093     Possible Answers:     Possible Answers:
2094    
2095        "OK" -        "OK" -
2096    
2097           in case setting was successfully changed           in case setting was successfully changed
2098    
2099        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2100    
2101           in case setting was changed successfully, but there are           in case setting was changed successfully, but there are
2102           noteworthy issue(s) related, providing an appropriate warning           noteworthy issue(s) related, providing an appropriate warning
2103           code and warning message           code and warning message
2104    
2105        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2106    
2107           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2108           error message           error message
2109    
   
   
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2110     Example:     Example:
2111    
2112        C: "SET MIDI_INPUT_DEVICE_PARAMETER 0 ACTIVE=false"        C: "SET MIDI_INPUT_DEVICE_PARAMETER 0 ACTIVE=false"
2113    
2114        S: "OK"        S: "OK"
2115    
2116  6.3.11  Getting information about a MIDI port  6.3.11.  Getting information about a MIDI port
2117    
2118     Use the following command to get information about a MIDI port:     Use the following command to get information about a MIDI port:
2119    
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2121    
2122     Where <device-id> is the numerical ID of the MIDI input device as     Where <device-id> is the numerical ID of the MIDI input device as
2123     returned by the "CREATE MIDI_INPUT_DEVICE" (Section 6.3.5) or "LIST     returned by the "CREATE MIDI_INPUT_DEVICE" (Section 6.3.5) or "LIST
2124    
2125    
2126    
2127    Schoenebeck               Expires July 2, 2007                 [Page 38]
2128    
2129    Internet-Draft        LinuxSampler Control Protocol        December 2006
2130    
2131    
2132     MIDI_INPUT_DEVICES" (Section 6.3.8) command and <midi-port> the MIDI     MIDI_INPUT_DEVICES" (Section 6.3.8) command and <midi-port> the MIDI
2133     input port number.     input port number.
2134    
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2139        a colon and then a space character <SP> and finally the info        a colon and then a space character <SP> and finally the info
2140        character string to that info category.  At the moment the        character string to that info category.  At the moment the
2141        following information categories are defined:        following information categories are defined:
2142    
2143        NAME -        NAME -
2144    
2145           arbitrary character string naming the port           arbitrary character string naming the port
2146    
2147     The field above is only the one which is returned by all MIDI ports     The field above is only the one which is returned by all MIDI ports
# Line 1826  Internet-Draft       LinuxSampler Contro Line 2151  Internet-Draft       LinuxSampler Contro
2151     Example:     Example:
2152    
2153        C: "GET MIDI_INPUT_PORT INFO 0 0"        C: "GET MIDI_INPUT_PORT INFO 0 0"
2154    
2155        S: "NAME: 'Masterkeyboard'"        S: "NAME: 'Masterkeyboard'"
2156    
2157           "ALSA_SEQ_BINDINGS: '64:0'"           "ALSA_SEQ_BINDINGS: '64:0'"
2158    
2159           "."           "."
2160    
2161  6.3.12  Getting information about specific MIDI port parameter  6.3.12.  Getting information about specific MIDI port parameter
2162    
2163     Use the following command to get detailed information about specific     Use the following command to get detailed information about specific
2164     MIDI port parameter:     MIDI port parameter:
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2169     returned by the "CREATE MIDI_INPUT_DEVICE" (Section 6.3.5) or "LIST     returned by the "CREATE MIDI_INPUT_DEVICE" (Section 6.3.5) or "LIST
2170     MIDI_INPUT_DEVICES" (Section 6.3.8) command, <port> the MIDI port     MIDI_INPUT_DEVICES" (Section 6.3.8) command, <port> the MIDI port
2171     number and <param> a specific port parameter name for which     number and <param> a specific port parameter name for which
   
   
   
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2172     information should be obtained (as returned by the "GET     information should be obtained (as returned by the "GET
2173     MIDI_INPUT_PORT INFO" (Section 6.3.11) command).     MIDI_INPUT_PORT INFO" (Section 6.3.11) command).
2174    
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2177        LinuxSampler will answer by sending a <CRLF> separated list.  Each        LinuxSampler will answer by sending a <CRLF> separated list.  Each
2178        answer line begins with the information category name followed by        answer line begins with the information category name followed by
2179        a colon and then a space character <SP> and finally the info        a colon and then a space character <SP> and finally the info
2180    
2181    
2182    
2183    Schoenebeck               Expires July 2, 2007                 [Page 39]
2184    
2185    Internet-Draft        LinuxSampler Control Protocol        December 2006
2186    
2187    
2188        character string to that info category.  There is information        character string to that info category.  There is information
2189        which is always returned, independently of the given channel        which is always returned, independently of the given channel
2190        parameter and there is optional information which are only shown        parameter and there is optional information which are only shown
2191        dependently to the given MIDI port.  At the moment the following        dependently to the given MIDI port.  At the moment the following
2192        information categories are defined:        information categories are defined:
2193    
2194        TYPE -        TYPE -
2195    
2196           either "BOOL" for boolean value(s) or "INT" for integer           either "BOOL" for boolean value(s) or "INT" for integer
2197           value(s) or "FLOAT" for dotted number(s) or "STRING" for           value(s) or "FLOAT" for dotted number(s) or "STRING" for
2198           character string(s) (always returned)           character string(s) (always returned)
2199    
2200        DESCRIPTION -        DESCRIPTION -
2201    
2202           arbitrary text describing the purpose of the parameter (always           arbitrary text describing the purpose of the parameter (always
2203           returned)           returned)
2204    
2205        FIX -        FIX -
2206    
2207           either true or false, if true then this parameter is read only,           either true or false, if true then this parameter is read only,
2208           thus cannot be altered (always returned)           thus cannot be altered (always returned)
2209    
2210        MULTIPLICITY -        MULTIPLICITY -
2211    
2212           either true or false, defines if this parameter allows only one           either true or false, defines if this parameter allows only one
2213           value or a list of values, where true means multiple values and           value or a list of values, where true means multiple values and
2214           false only a single value allowed (always returned)           false only a single value allowed (always returned)
2215    
2216        RANGE_MIN -        RANGE_MIN -
2217    
2218           defines lower limit of the allowed value range for this           defines lower limit of the allowed value range for this
2219           parameter, can be an integer value as well as a dotted number,           parameter, can be an integer value as well as a dotted number,
2220           this parameter is usually used in conjunction with 'RANGE_MAX'           this parameter is usually used in conjunction with 'RANGE_MAX'
2221           but may also appear without (optionally returned, dependent to           but may also appear without (optionally returned, dependent to
2222           driver and port parameter)           driver and port parameter)
2223    
2224        RANGE_MAX -        RANGE_MAX -
2225    
2226           defines upper limit of the allowed value range for this           defines upper limit of the allowed value range for this
2227           parameter, can be an integer value as well as a dotted number,           parameter, can be an integer value as well as a dotted number,
2228           this parameter is usually used in conjunction with 'RANGE_MIN'           this parameter is usually used in conjunction with 'RANGE_MIN'
2229           but may also appear without (optionally returned, dependent to           but may also appear without (optionally returned, dependent to
2230           driver and port parameter)           driver and port parameter)
2231    
2232        POSSIBILITIES -        POSSIBILITIES -
2233    
2234           comma separated list of possible values for this parameter,           comma separated list of possible values for this parameter,
2235           character strings are encapsulated into apostrophes (optionally           character strings are encapsulated into apostrophes (optionally
          returned, dependent to device and port parameter)  
2236    
    The mentioned fields above don't have to be in particular order.  
2237    
    Example:  
2238    
2239    Schoenebeck               Expires July 2, 2007                 [Page 40]
2240    
2241    Internet-Draft        LinuxSampler Control Protocol        December 2006
2242    
2243    
2244             returned, dependent to device and port parameter)
2245    
2246  Schoenebeck            Expires November 22, 2005               [Page 34]     The mentioned fields above don't have to be in particular order.
   
 Internet-Draft       LinuxSampler Control Protocol              May 2005  
2247    
2248       Example:
2249    
2250        C: "GET MIDI_INPUT_PORT_PARAMETER INFO 0 0 ALSA_SEQ_BINDINGS"        C: "GET MIDI_INPUT_PORT_PARAMETER INFO 0 0 ALSA_SEQ_BINDINGS"
2251    
2252        S: "DESCRIPTION: bindings to other ALSA sequencer clients"        S: "DESCRIPTION: bindings to other ALSA sequencer clients"
2253    
2254           "TYPE: STRING"           "TYPE: STRING"
2255    
2256           "FIX: false"           "FIX: false"
2257    
2258           "MULTIPLICITY: true"           "MULTIPLICITY: true"
2259    
2260           "POSSIBILITIES: '64:0','68:0','68:1'"           "POSSIBILITIES: '64:0','68:0','68:1'"
2261    
2262           "."           "."
2263    
2264  6.3.13  Changing settings of MIDI input ports  6.3.13.  Changing settings of MIDI input ports
2265    
2266     Use the following command to alter a specific setting of a MIDI input     Use the following command to alter a specific setting of a MIDI input
2267     port:     port:
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2277     Possible Answers:     Possible Answers:
2278    
2279        "OK" -        "OK" -
2280    
2281           in case setting was successfully changed           in case setting was successfully changed
2282    
2283        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2284    
2285           in case setting was changed successfully, but there are           in case setting was changed successfully, but there are
2286           noteworthy issue(s) related, providing an appropriate warning           noteworthy issue(s) related, providing an appropriate warning
2287           code and warning message           code and warning message
2288    
2289        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2290    
2291    
2292    
2293    
2294    
2295    Schoenebeck               Expires July 2, 2007                 [Page 41]
2296    
2297    Internet-Draft        LinuxSampler Control Protocol        December 2006
2298    
2299    
2300           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2301           error message           error message
2302    
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2304    
2305    
2306    
2307  6.4  Configuring sampler channels  6.4.  Configuring sampler channels
2308    
2309     The following commands describe how to add and remove sampler     The following commands describe how to add and remove sampler
2310     channels, associate a sampler channel with a sampler engine, load     channels, associate a sampler channel with a sampler engine, load
2311     instruments and connect sampler channels to MIDI and audio devices.     instruments and connect sampler channels to MIDI and audio devices.
2312    
2313  6.4.1  Loading an instrument  6.4.1.  Loading an instrument
2314    
2315     An instrument file can be loaded and assigned to a sampler channel by     An instrument file can be loaded and assigned to a sampler channel by
2316     one of the following commands:     one of the following commands:
2317    
2318          LOAD INSTRUMENT [NON_MODAL] '<filename>' <instr-index> <sampler-
2319          channel>
   
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       LOAD INSTRUMENT [NON_MODAL] '<filename>' <instr-index>  
       <sampler-channel>  
2320    
2321     Where <filename> is the name of the instrument file on the     Where <filename> is the name of the instrument file on the
2322     LinuxSampler instance's host system, <instr-index> the index of the     LinuxSampler instance's host system, <instr-index> the index of the
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2328     is that the regular command returns OK only after the instrument has     is that the regular command returns OK only after the instrument has
2329     been fully loaded and the channel is ready to be used while NON_MODAL     been fully loaded and the channel is ready to be used while NON_MODAL
2330     version returns immediately and a background process is launched to     version returns immediately and a background process is launched to
2331     load the instrument on the channel.  The GET CHANNEL INFO (Section     load the instrument on the channel.  The GET CHANNEL INFO
2332     6.4.10) command can be used to obtain loading progress from     (Section 6.4.10) command can be used to obtain loading progress from
2333     INSTRUMENT_STATUS field.  LOAD command will perform sanity checks     INSTRUMENT_STATUS field.  LOAD command will perform sanity checks
2334     such as making sure that the file could be read and it is of a proper     such as making sure that the file could be read and it is of a proper
2335     format and SHOULD return ERR and SHOULD not launch the background     format and SHOULD return ERR and SHOULD not launch the background
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2338     Possible Answers:     Possible Answers:
2339    
2340        "OK" -        "OK" -
2341    
2342           in case the instrument was successfully loaded           in case the instrument was successfully loaded
2343    
2344        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2345    
2346           in case the instrument was loaded successfully, but there are           in case the instrument was loaded successfully, but there are
2347           noteworthy issue(s) related (e.g.  Engine doesn't support one           noteworthy issue(s) related (e.g.  Engine doesn't support one
2348    
2349    
2350    
2351    Schoenebeck               Expires July 2, 2007                 [Page 42]
2352    
2353    Internet-Draft        LinuxSampler Control Protocol        December 2006
2354    
2355    
2356           or more patch parameters provided by the loaded instrument           or more patch parameters provided by the loaded instrument
2357           file), providing an appropriate warning code and warning           file), providing an appropriate warning code and warning
2358           message           message
2359    
2360        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2361    
2362           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2363           error message           error message
2364    
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2366    
2367    
2368    
2369  6.4.2  Loading a sampler engine  6.4.2.  Loading a sampler engine
2370    
2371     A sampler engine type can be associated to a specific sampler channel     A sampler engine type can be associated to a specific sampler channel
2372     by the following command:     by the following command:
# Line 2009  Internet-Draft       LinuxSampler Contro Line 2376  Internet-Draft       LinuxSampler Contro
2376     Where <engine-name> is an engine name as obtained by the "LIST     Where <engine-name> is an engine name as obtained by the "LIST
2377     AVAILABLE_ENGINES" (Section 6.4.8) command and <sampler-channel> the     AVAILABLE_ENGINES" (Section 6.4.8) command and <sampler-channel> the
2378     sampler channel as returned by the "ADD CHANNEL" (Section 6.4.5) or     sampler channel as returned by the "ADD CHANNEL" (Section 6.4.5) or
   
   
   
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2379     "LIST CHANNELS" (Section 6.4.4) command where the engine type should     "LIST CHANNELS" (Section 6.4.4) command where the engine type should
2380     be assigned to.  This command should be issued after adding a new     be assigned to.  This command should be issued after adding a new
2381     sampler channel and before any other control commands on the new     sampler channel and before any other control commands on the new
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2388     Possible Answers:     Possible Answers:
2389    
2390        "OK" -        "OK" -
2391    
2392           in case the engine was successfully deployed           in case the engine was successfully deployed
2393    
2394        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2395    
2396           in case the engine was deployed successfully, but there are           in case the engine was deployed successfully, but there are
2397           noteworthy issue(s) related, providing an appropriate warning           noteworthy issue(s) related, providing an appropriate warning
2398           code and warning message           code and warning message
2399    
2400        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2401    
2402           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2403           error message           error message
2404    
2405    
2406    
2407    Schoenebeck               Expires July 2, 2007                 [Page 43]
2408    
2409    Internet-Draft        LinuxSampler Control Protocol        December 2006
2410    
2411    
2412     Example:     Example:
2413    
2414    
2415    
2416  6.4.3  Getting all created sampler channel count  6.4.3.  Getting all created sampler channel count
2417    
2418     The number of sampler channels can change on runtime.  To get the     The number of sampler channels can change on runtime.  To get the
2419     current amount of sampler channels, the front-end can send the     current amount of sampler channels, the front-end can send the
# Line 2058  Internet-Draft       LinuxSampler Contro Line 2429  Internet-Draft       LinuxSampler Contro
2429     Example:     Example:
2430    
2431        C: "GET CHANNELS"        C: "GET CHANNELS"
2432    
2433        S: "12"        S: "12"
2434    
2435  6.4.4  Getting all created sampler channel list  6.4.4.  Getting all created sampler channel list
2436    
2437     The number of sampler channels can change on runtime.  To get the     The number of sampler channels can change on runtime.  To get the
2438     current list of sampler channels, the front-end can send the     current list of sampler channels, the front-end can send the
2439     following command:     following command:
2440    
   
   
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2441        LIST CHANNELS        LIST CHANNELS
2442    
2443     Possible Answers:     Possible Answers:
# Line 2083  Internet-Draft       LinuxSampler Contro Line 2448  Internet-Draft       LinuxSampler Contro
2448     Example:     Example:
2449    
2450        C: "LIST CHANNELS"        C: "LIST CHANNELS"
2451    
2452        S: "0,1,2,3,4,5,6,9,10,11,15,20"        S: "0,1,2,3,4,5,6,9,10,11,15,20"
2453    
2454  6.4.5  Adding a new sampler channel  6.4.5.  Adding a new sampler channel
2455    
2456     A new sampler channel can be added to the end of the sampler channel     A new sampler channel can be added to the end of the sampler channel
2457     list by sending the following command:     list by sending the following command:
2458    
2459    
2460    
2461    
2462    
2463    Schoenebeck               Expires July 2, 2007                 [Page 44]
2464    
2465    Internet-Draft        LinuxSampler Control Protocol        December 2006
2466    
2467    
2468        ADD CHANNEL        ADD CHANNEL
2469    
2470     This will increment the sampler channel count by one and the new     This will increment the sampler channel count by one and the new
2471     sampler channel will be appended to the end of the sampler channel     sampler channel will be appended to the end of the sampler channel
2472     list.  The front-end should send the respective, related commands     list.  The front-end should send the respective, related commands
2473     right after to e.g.  load an engine, load an instrument and setting     right after to e.g. load an engine, load an instrument and setting
2474     input, output method and eventually other commands to initialize the     input, output method and eventually other commands to initialize the
2475     new channel.  The front-end should use the sampler channel returned     new channel.  The front-end should use the sampler channel returned
2476     by the answer of this command to perform the previously recommended     by the answer of this command to perform the previously recommended
2477     commands, to avoid race conditions e.g.  with other front-ends that     commands, to avoid race conditions e.g. with other front-ends that
2478     might also have sent an "ADD CHANNEL" command.     might also have sent an "ADD CHANNEL" command.
2479    
2480     Possible Answers:     Possible Answers:
2481    
2482        "OK[<sampler-channel>]" -        "OK[<sampler-channel>]" -
2483           in case a new sampler channel could be added, where  
2484           <sampler-channel> reflects the channel number of the new           in case a new sampler channel could be added, where <sampler-
2485           created sampler channel which should be used to set up the           channel> reflects the channel number of the new created sampler
2486           sampler channel by sending subsequent initialization commands           channel which should be used to set up the sampler channel by
2487             sending subsequent initialization commands
2488    
2489        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2490    
2491           in case a new channel was added successfully, but there are           in case a new channel was added successfully, but there are
2492           noteworthy issue(s) related, providing an appropriate warning           noteworthy issue(s) related, providing an appropriate warning
2493           code and warning message           code and warning message
2494    
2495        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2496    
2497           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2498           error message           error message
2499    
# Line 2121  Internet-Draft       LinuxSampler Contro Line 2501  Internet-Draft       LinuxSampler Contro
2501    
2502    
2503    
2504    6.4.6.  Removing a sampler channel
   
   
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 6.4.6  Removing a sampler channel  
2505    
2506     A sampler channel can be removed by sending the following command:     A sampler channel can be removed by sending the following command:
2507    
# Line 2142  Internet-Draft       LinuxSampler Contro Line 2514  Internet-Draft       LinuxSampler Contro
2514    
2515     Possible Answers:     Possible Answers:
2516    
2517    
2518    
2519    Schoenebeck               Expires July 2, 2007                 [Page 45]
2520    
2521    Internet-Draft        LinuxSampler Control Protocol        December 2006
2522    
2523    
2524        "OK" -        "OK" -
2525    
2526           in case the given sampler channel could be removed           in case the given sampler channel could be removed
2527    
2528        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2529    
2530           in case the given channel was removed, but there are noteworthy           in case the given channel was removed, but there are noteworthy
2531           issue(s) related, providing an appropriate warning code and           issue(s) related, providing an appropriate warning code and
2532           warning message           warning message
2533    
2534        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2535    
2536           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2537           error message           error message
2538    
# Line 2156  Internet-Draft       LinuxSampler Contro Line 2540  Internet-Draft       LinuxSampler Contro
2540    
2541    
2542    
2543  6.4.7  Getting amount of available engines  6.4.7.  Getting amount of available engines
2544    
2545     The front-end can ask for the number of available engines by sending     The front-end can ask for the number of available engines by sending
2546     the following command:     the following command:
# Line 2171  Internet-Draft       LinuxSampler Contro Line 2555  Internet-Draft       LinuxSampler Contro
2555     Example:     Example:
2556    
2557        C: "GET AVAILABLE_ENGINES"        C: "GET AVAILABLE_ENGINES"
2558    
2559        S: "4"        S: "4"
2560    
2561  6.4.8  Getting all available engines  6.4.8.  Getting all available engines
2562    
2563     The front-end can ask for a list of all available engines by sending     The front-end can ask for a list of all available engines by sending
2564     the following command:     the following command:
2565    
2566          LIST AVAILABLE_ENGINES
2567    
2568       Possible Answers:
2569    
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 Internet-Draft       LinuxSampler Control Protocol              May 2005  
2570    
2571    
       LIST AVAILABLE_ENGINES  
2572    
2573     Possible Answers:  
2574    
2575    Schoenebeck               Expires July 2, 2007                 [Page 46]
2576    
2577    Internet-Draft        LinuxSampler Control Protocol        December 2006
2578    
2579    
2580        LinuxSampler will answer by sending a comma separated list of the        LinuxSampler will answer by sending a comma separated list of the
2581        engines' names encapsulated into apostrophes (').  Engine names        engines' names encapsulated into apostrophes (').  Engine names
# Line 2197  Internet-Draft       LinuxSampler Contro Line 2585  Internet-Draft       LinuxSampler Contro
2585     Example:     Example:
2586    
2587        C: "LIST AVAILABLE_ENGINES"        C: "LIST AVAILABLE_ENGINES"
2588    
2589        S: "'GigEngine','AkaiEngine','DLSEngine','JoesCustomEngine'"        S: "'GigEngine','AkaiEngine','DLSEngine','JoesCustomEngine'"
2590    
2591  6.4.9  Getting information about an engine  6.4.9.  Getting information about an engine
2592    
2593     The front-end can ask for information about a specific engine by     The front-end can ask for information about a specific engine by
2594     sending the following command:     sending the following command:
# Line 2217  Internet-Draft       LinuxSampler Contro Line 2606  Internet-Draft       LinuxSampler Contro
2606        character string to that info category.  At the moment the        character string to that info category.  At the moment the
2607        following categories are defined:        following categories are defined:
2608    
2609    
2610    
2611           DESCRIPTION -           DESCRIPTION -
2612    
2613              arbitrary description text about the engine              arbitrary description text about the engine
2614    
2615           VERSION -           VERSION -
2616    
2617              arbitrary character string regarding the engine's version              arbitrary character string regarding the engine's version
2618    
2619     The mentioned fields above don't have to be in particular order.     The mentioned fields above don't have to be in particular order.
# Line 2227  Internet-Draft       LinuxSampler Contro Line 2621  Internet-Draft       LinuxSampler Contro
2621     Example:     Example:
2622    
2623        C: "GET ENGINE INFO JoesCustomEngine"        C: "GET ENGINE INFO JoesCustomEngine"
       S: "DESCRIPTION: this is Joe's custom sampler engine"  
          "VERSION: testing-1.0"  
          "."  
2624    
2625          S: "DESCRIPTION: this is Joe's custom sampler engine"
2626    
2627    
2628    
2629    
2630    
2631  Schoenebeck            Expires November 22, 2005               [Page 40]  Schoenebeck               Expires July 2, 2007                 [Page 47]
2632    
2633  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
2634    
2635    
2636  6.4.10  Getting sampler channel information           "VERSION: testing-1.0"
2637    
2638             "."
2639    
2640    6.4.10.  Getting sampler channel information
2641    
2642     The front-end can ask for the current settings of a sampler channel     The front-end can ask for the current settings of a sampler channel
2643     by sending the following command:     by sending the following command:
# Line 2260  Internet-Draft       LinuxSampler Contro Line 2656  Internet-Draft       LinuxSampler Contro
2656        character string to that setting category.  At the moment the        character string to that setting category.  At the moment the
2657        following categories are defined:        following categories are defined:
2658    
2659    
2660    
2661           ENGINE_NAME -           ENGINE_NAME -
2662    
2663              name of the engine that is associated with the sampler              name of the engine that is associated with the sampler
2664              channel, "NONE" if there's no engine associated yet for this              channel, "NONE" if there's no engine associated yet for this
2665              sampler channel              sampler channel
2666    
2667           AUDIO_OUTPUT_DEVICE -           AUDIO_OUTPUT_DEVICE -
2668    
2669              numerical ID of the audio output device which is currently              numerical ID of the audio output device which is currently
2670              connected to this sampler channel to output the audio              connected to this sampler channel to output the audio
2671              signal, "NONE" if there's no device connected to this              signal, "NONE" if there's no device connected to this
2672              sampler channel              sampler channel
2673    
2674           AUDIO_OUTPUT_CHANNELS -           AUDIO_OUTPUT_CHANNELS -
2675    
2676              number of output channels the sampler channel offers              number of output channels the sampler channel offers
2677              (dependent to used sampler engine and loaded instrument)              (dependent to used sampler engine and loaded instrument)
2678    
2679           AUDIO_OUTPUT_ROUTING -           AUDIO_OUTPUT_ROUTING -
2680    
2681              comma separated list which reflects to which audio channel              comma separated list which reflects to which audio channel
2682              of the selected audio output device each sampler output              of the selected audio output device each sampler output
2683              channel is routed to, e.g.  "0,3" would mean the engine's              channel is routed to, e.g. "0,3" would mean the engine's
2684    
2685    
2686    
2687    Schoenebeck               Expires July 2, 2007                 [Page 48]
2688    
2689    Internet-Draft        LinuxSampler Control Protocol        December 2006
2690    
2691    
2692              output channel 0 is routed to channel 0 of the audio output              output channel 0 is routed to channel 0 of the audio output
2693              device and the engine's output channel 1 is routed to the              device and the engine's output channel 1 is routed to the
2694              channel 3 of the audio output device              channel 3 of the audio output device
2695    
2696           INSTRUMENT_FILE -           INSTRUMENT_FILE -
2697    
2698              the file name of the loaded instrument, "NONE" if there's no              the file name of the loaded instrument, "NONE" if there's no
2699              instrument yet loaded for this sampler channel              instrument yet loaded for this sampler channel
2700    
2701           INSTRUMENT_NR -           INSTRUMENT_NR -
2702    
2703              the instrument index number of the loaded instrument              the instrument index number of the loaded instrument
2704    
2705           INSTRUMENT_NAME -           INSTRUMENT_NAME -
2706    
2707              the instrument name of the loaded instrument              the instrument name of the loaded instrument
2708    
2709           INSTRUMENT_STATUS -           INSTRUMENT_STATUS -
2710    
2711              integer values 0 to 100 indicating loading progress              integer values 0 to 100 indicating loading progress
2712              percentage for the instrument.  Negative value indicates a              percentage for the instrument.  Negative value indicates a
   
   
   
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2713              loading exception.  Value of 100 indicates that the              loading exception.  Value of 100 indicates that the
2714              instrument is fully loaded.              instrument is fully loaded.
2715    
2716           MIDI_INPUT_DEVICE -           MIDI_INPUT_DEVICE -
2717    
2718              numerical ID of the MIDI input device which is currently              numerical ID of the MIDI input device which is currently
2719              connected to this sampler channel to deliver MIDI input              connected to this sampler channel to deliver MIDI input
2720              commands, "NONE" if there's no device connected to this              commands, "NONE" if there's no device connected to this
2721              sampler channel              sampler channel
2722    
2723           MIDI_INPUT_PORT -           MIDI_INPUT_PORT -
2724    
2725              port number of the MIDI input device              port number of the MIDI input device
2726    
2727           MIDI_INPUT_CHANNEL -           MIDI_INPUT_CHANNEL -
2728    
2729              the MIDI input channel number this sampler channel should              the MIDI input channel number this sampler channel should
2730              listen to or "ALL" to listen on all MIDI channels              listen to or "ALL" to listen on all MIDI channels
2731    
2732           VOLUME -           VOLUME -
2733    
2734              optionally dotted number for the channel volume factor              optionally dotted number for the channel volume factor
2735              (where a value < 1.0 means attenuation and a value > 1.0              (where a value < 1.0 means attenuation and a value > 1.0
2736              means amplification)              means amplification)
2737    
2738    
2739    
2740    
2741    
2742    
2743    Schoenebeck               Expires July 2, 2007                 [Page 49]
2744    
2745    Internet-Draft        LinuxSampler Control Protocol        December 2006
2746    
2747    
2748             MUTE -
2749    
2750                Determines whether the channel is muted, "true" if the
2751                channel is muted, "false" if the channel is not muted, and
2752                "MUTED_BY_SOLO" if the channel is muted because of the
2753                presence of a solo channel and will be unmuted when there
2754                are no solo channels left
2755    
2756             SOLO -
2757    
2758                Determines whether this is a solo channel, "true" if the
2759                channel is a solo channel; "false" otherwise
2760    
2761             MIDI_INSTRUMENT_MAP -
2762    
2763                Determines to which MIDI instrument map this sampler channel
2764                is assigned to.  Read chapter "SET CHANNEL
2765                MIDI_INSTRUMENT_MAP" (Section 6.4.24) for a list of possible
2766                values.
2767    
2768     The mentioned fields above don't have to be in particular order.     The mentioned fields above don't have to be in particular order.
2769    
2770     Example:     Example:
2771    
2772        C: "GET CHANNEL INFO 34"        C: "GET CHANNEL INFO 34"
2773    
2774        S: "ENGINE_NAME: GigEngine"        S: "ENGINE_NAME: GigEngine"
2775    
2776           "VOLUME: 1.0"           "VOLUME: 1.0"
2777    
2778           "AUDIO_OUTPUT_DEVICE: 0"           "AUDIO_OUTPUT_DEVICE: 0"
2779    
2780           "AUDIO_OUTPUT_CHANNELS: 2"           "AUDIO_OUTPUT_CHANNELS: 2"
2781    
2782           "AUDIO_OUTPUT_ROUTING: 0,1"           "AUDIO_OUTPUT_ROUTING: 0,1"
2783    
2784           "INSTRUMENT_FILE: /home/joe/FazioliPiano.gig"           "INSTRUMENT_FILE: /home/joe/FazioliPiano.gig"
2785    
2786           "INSTRUMENT_NR: 0"           "INSTRUMENT_NR: 0"
2787    
2788           "INSTRUMENT_NAME: Fazioli Piano"           "INSTRUMENT_NAME: Fazioli Piano"
2789    
2790           "INSTRUMENT_STATUS: 100"           "INSTRUMENT_STATUS: 100"
2791    
2792           "MIDI_INPUT_DEVICE: 0"           "MIDI_INPUT_DEVICE: 0"
2793    
2794           "MIDI_INPUT_PORT: 0"           "MIDI_INPUT_PORT: 0"
2795    
2796    
2797    
2798    
2799    Schoenebeck               Expires July 2, 2007                 [Page 50]
2800    
2801    Internet-Draft        LinuxSampler Control Protocol        December 2006
2802    
2803    
2804           "MIDI_INPUT_CHANNEL: 5"           "MIDI_INPUT_CHANNEL: 5"
2805    
2806             "VOLUME: 1.0"
2807    
2808             "MUTE: false"
2809    
2810             "SOLO: false"
2811    
2812             "MIDI_INSTRUMENT_MAP: NONE"
2813    
2814           "."           "."
2815    
2816  6.4.11  Current number of active voices  6.4.11.  Current number of active voices
2817    
2818     The front-end can ask for the current number of active voices on a     The front-end can ask for the current number of active voices on a
2819     sampler channel by sending the following command:     sampler channel by sending the following command:
# Line 2346  Internet-Draft       LinuxSampler Contro Line 2826  Internet-Draft       LinuxSampler Contro
2826    
2827     Possible Answers:     Possible Answers:
2828    
   
   
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2829        LinuxSampler will answer by returning the number of active voices        LinuxSampler will answer by returning the number of active voices
2830        on that channel.        on that channel.
2831    
# Line 2360  Internet-Draft       LinuxSampler Contro Line 2833  Internet-Draft       LinuxSampler Contro
2833    
2834    
2835    
2836  6.4.12  Current number of active disk streams  6.4.12.  Current number of active disk streams
2837    
2838     The front-end can ask for the current number of active disk streams     The front-end can ask for the current number of active disk streams
2839     on a sampler channel by sending the following command:     on a sampler channel by sending the following command:
# Line 2376  Internet-Draft       LinuxSampler Contro Line 2849  Internet-Draft       LinuxSampler Contro
2849        LinuxSampler will answer by returning the number of active disk        LinuxSampler will answer by returning the number of active disk
2850        streams on that channel in case the engine supports disk        streams on that channel in case the engine supports disk
2851        streaming, if the engine doesn't support disk streaming it will        streaming, if the engine doesn't support disk streaming it will
2852    
2853    
2854    
2855    Schoenebeck               Expires July 2, 2007                 [Page 51]
2856    
2857    Internet-Draft        LinuxSampler Control Protocol        December 2006
2858    
2859    
2860        return "NA" for not available.        return "NA" for not available.
2861    
2862     Example:     Example:
2863    
2864    
2865    
2866  6.4.13  Current fill state of disk stream buffers  6.4.13.  Current fill state of disk stream buffers
2867    
2868     The front-end can ask for the current fill state of all disk streams     The front-end can ask for the current fill state of all disk streams
2869     on a sampler channel by sending the following command:     on a sampler channel by sending the following command:
# Line 2400  Internet-Draft       LinuxSampler Contro Line 2881  Internet-Draft       LinuxSampler Contro
2881    
2882     Possible Answers:     Possible Answers:
2883    
   
   
   
   
 Schoenebeck            Expires November 22, 2005               [Page 43]  
   
 Internet-Draft       LinuxSampler Control Protocol              May 2005  
   
   
2884        LinuxSampler will either answer by returning a comma separated        LinuxSampler will either answer by returning a comma separated
2885        string with the fill state of all disk stream buffers on that        string with the fill state of all disk stream buffers on that
2886        channel or an empty line if there are no active disk streams or        channel or an empty line if there are no active disk streams or
# Line 2423  Internet-Draft       LinuxSampler Contro Line 2895  Internet-Draft       LinuxSampler Contro
2895     Examples:     Examples:
2896    
2897        C: "GET CHANNEL BUFFER_FILL BYTES 4"        C: "GET CHANNEL BUFFER_FILL BYTES 4"
2898    
2899        S: "[115]420500,[116]510300,[75]110000,[120]230700"        S: "[115]420500,[116]510300,[75]110000,[120]230700"
2900    
2901        C: "GET CHANNEL BUFFER_FILL PERCENTAGE 4"        C: "GET CHANNEL BUFFER_FILL PERCENTAGE 4"
2902    
2903        S: "[115]90%,[116]98%,[75]40%,[120]62%"        S: "[115]90%,[116]98%,[75]40%,[120]62%"
2904    
2905        C: "GET CHANNEL BUFFER_FILL PERCENTAGE 4"        C: "GET CHANNEL BUFFER_FILL PERCENTAGE 4"
2906    
2907    
2908    
2909    
2910    
2911    Schoenebeck               Expires July 2, 2007                 [Page 52]
2912    
2913    Internet-Draft        LinuxSampler Control Protocol        December 2006
2914    
2915    
2916        S: ""        S: ""
2917    
2918  6.4.14  Setting audio output device  6.4.14.  Setting audio output device
2919    
2920     The front-end can set the audio output device on a specific sampler     The front-end can set the audio output device on a specific sampler
2921     channel by sending the following command:     channel by sending the following command:
# Line 2447  Internet-Draft       LinuxSampler Contro Line 2933  Internet-Draft       LinuxSampler Contro
2933     Possible Answers:     Possible Answers:
2934    
2935        "OK" -        "OK" -
2936    
2937           on success           on success
2938    
2939        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2940    
2941           if audio output device was set, but there are noteworthy           if audio output device was set, but there are noteworthy
2942           issue(s) related, providing an appropriate warning code and           issue(s) related, providing an appropriate warning code and
2943           warning message           warning message
2944    
2945        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2946    
2947           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2948           error message           error message
2949    
# Line 2460  Internet-Draft       LinuxSampler Contro Line 2951  Internet-Draft       LinuxSampler Contro
2951    
2952    
2953    
2954  Schoenebeck            Expires November 22, 2005               [Page 44]  6.4.15.  Setting audio output type
2955    
2956  Internet-Draft       LinuxSampler Control Protocol              May 2005     DEPRECATED: THIS COMMAND WILL DISAPPEAR SOON!
2957    
2958       The front-end can alter the audio output type on a specific sampler
2959       channel by sending the following command:
2960    
2961          SET CHANNEL AUDIO_OUTPUT_TYPE <sampler-channel> <audio-output-
2962          type>
2963    
2964    
 6.4.15  Setting audio output type  
2965    
    DEPRECATED: THIS COMMAND WILL DISAPPEAR SOON!  
2966    
2967     The front-end can alter the audio output type on a specific sampler  Schoenebeck               Expires July 2, 2007                 [Page 53]
2968     channel by sending the following command:  
2969    Internet-Draft        LinuxSampler Control Protocol        December 2006
2970    
       SET CHANNEL AUDIO_OUTPUT_TYPE <sampler-channel>  
       <audio-output-type>  
2971    
2972     Where <audio-output-type> is currently either "ALSA" or "JACK" and     Where <audio-output-type> is currently either "ALSA" or "JACK" and
2973     <sampler-channel> is the respective sampler channel number.     <sampler-channel> is the respective sampler channel number.
# Line 2483  Internet-Draft       LinuxSampler Contro Line 2975  Internet-Draft       LinuxSampler Contro
2975     Possible Answers:     Possible Answers:
2976    
2977        "OK" -        "OK" -
2978    
2979           on success           on success
2980    
2981        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
2982    
2983           if audio output type was set, but there are noteworthy issue(s)           if audio output type was set, but there are noteworthy issue(s)
2984           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
2985           message           message
2986    
2987        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
2988    
2989           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
2990           error message           error message
2991    
# Line 2496  Internet-Draft       LinuxSampler Contro Line 2993  Internet-Draft       LinuxSampler Contro
2993    
2994    
2995    
2996  6.4.16  Setting audio output channel  6.4.16.  Setting audio output channel
2997    
2998     The front-end can alter the audio output channel on a specific     The front-end can alter the audio output channel on a specific
2999     sampler channel by sending the following command:     sampler channel by sending the following command:
# Line 2513  Internet-Draft       LinuxSampler Contro Line 3010  Internet-Draft       LinuxSampler Contro
3010    
3011     Possible Answers:     Possible Answers:
3012    
3013          "OK" -
3014    
3015             on success
3016    
3017          "WRN:<warning-code>:<warning-message>" -
3018    
3019    
3020    
3021    
3022  Schoenebeck            Expires November 22, 2005               [Page 45]  
3023    Schoenebeck               Expires July 2, 2007                 [Page 54]
3024    
3025  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
3026    
3027    
       "OK" -  
          on success  
       "WRN:<warning-code>:<warning-message>" -  
3028           if audio output channel was set, but there are noteworthy           if audio output channel was set, but there are noteworthy
3029           issue(s) related, providing an appropriate warning code and           issue(s) related, providing an appropriate warning code and
3030           warning message           warning message
3031    
3032        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3033    
3034           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3035           error message           error message
3036    
# Line 2535  Internet-Draft       LinuxSampler Contro Line 3038  Internet-Draft       LinuxSampler Contro
3038    
3039    
3040    
3041  6.4.17  Setting MIDI input device  6.4.17.  Setting MIDI input device
3042    
3043     The front-end can set the MIDI input device on a specific sampler     The front-end can set the MIDI input device on a specific sampler
3044     channel by sending the following command:     channel by sending the following command:
# Line 2544  Internet-Draft       LinuxSampler Contro Line 3047  Internet-Draft       LinuxSampler Contro
3047    
3048     Where <sampler-channel> is the sampler channel number as returned by     Where <sampler-channel> is the sampler channel number as returned by
3049     the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS" (Section 6.4.4)     the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS" (Section 6.4.4)
3050     command and <midi-device-id> is  the numerical ID of the MIDI input     command and <midi-device-id> is the numerical ID of the MIDI input
3051     device as returned by the "CREATE MIDI_INPUT_DEVICE" (Section 6.3.5)     device as returned by the "CREATE MIDI_INPUT_DEVICE" (Section 6.3.5)
3052     or "LIST MIDI_INPUT_DEVICES" (Section 6.3.8) command.     or "LIST MIDI_INPUT_DEVICES" (Section 6.3.8) command.
3053    
3054     Possible Answers:     Possible Answers:
3055    
3056        "OK" -        "OK" -
3057    
3058           on success           on success
3059    
3060        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3061    
3062           if MIDI input device was set, but there are noteworthy issue(s)           if MIDI input device was set, but there are noteworthy issue(s)
3063           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
3064           message           message
3065    
3066        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3067    
3068           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3069           error message           error message
3070    
# Line 2564  Internet-Draft       LinuxSampler Contro Line 3072  Internet-Draft       LinuxSampler Contro
3072    
3073    
3074    
 6.4.18  Setting MIDI input type  
   
    DEPRECATED: THIS COMMAND WILL DISAPPEAR SOON!  
3075    
    The front-end can alter the MIDI input type on a specific sampler  
3076    
3077    
3078    
3079  Schoenebeck            Expires November 22, 2005               [Page 46]  Schoenebeck               Expires July 2, 2007                 [Page 55]
3080    
3081  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
3082    
3083    
3084    6.4.18.  Setting MIDI input type
3085    
3086       DEPRECATED: THIS COMMAND WILL DISAPPEAR SOON!
3087    
3088       The front-end can alter the MIDI input type on a specific sampler
3089     channel by sending the following command:     channel by sending the following command:
3090    
3091        SET CHANNEL MIDI_INPUT_TYPE <sampler-channel> <midi-input-type>        SET CHANNEL MIDI_INPUT_TYPE <sampler-channel> <midi-input-type>
3092    
3093     Where <midi-input-type> is currently only "ALSA" and     Where <midi-input-type> is currently only "ALSA" and <sampler-
3094     <sampler-channel> is the respective sampler channel number.     channel> is the respective sampler channel number.
3095    
3096     Possible Answers:     Possible Answers:
3097    
3098        "OK" -        "OK" -
3099    
3100           on success           on success
3101    
3102        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3103    
3104           if MIDI input type was set, but there are noteworthy issue(s)           if MIDI input type was set, but there are noteworthy issue(s)
3105           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
3106           message           message
3107    
3108        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3109    
3110           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3111           error message           error message
3112    
# Line 2600  Internet-Draft       LinuxSampler Contro Line 3114  Internet-Draft       LinuxSampler Contro
3114    
3115    
3116    
3117  6.4.19  Setting MIDI input port  6.4.19.  Setting MIDI input port
3118    
3119     The front-end can alter the MIDI input port on a specific sampler     The front-end can alter the MIDI input port on a specific sampler
3120     channel by sending the following command:     channel by sending the following command:
# Line 2613  Internet-Draft       LinuxSampler Contro Line 3127  Internet-Draft       LinuxSampler Contro
3127     Possible Answers:     Possible Answers:
3128    
3129        "OK" -        "OK" -
3130    
3131    
3132    
3133    
3134    
3135    Schoenebeck               Expires July 2, 2007                 [Page 56]
3136    
3137    Internet-Draft        LinuxSampler Control Protocol        December 2006
3138    
3139    
3140           on success           on success
3141    
3142        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3143    
3144           if MIDI input port was set, but there are noteworthy issue(s)           if MIDI input port was set, but there are noteworthy issue(s)
3145           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
3146           message           message
3147    
3148        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3149    
3150           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3151           error message           error message
3152    
# Line 2626  Internet-Draft       LinuxSampler Contro Line 3154  Internet-Draft       LinuxSampler Contro
3154    
3155    
3156    
3157    6.4.20.  Setting MIDI input channel
   
 Schoenebeck            Expires November 22, 2005               [Page 47]  
   
 Internet-Draft       LinuxSampler Control Protocol              May 2005  
   
   
   
   
 6.4.20  Setting MIDI input channel  
3158    
3159     The front-end can alter the MIDI channel a sampler channel should     The front-end can alter the MIDI channel a sampler channel should
3160     listen to by sending the following command:     listen to by sending the following command:
# Line 2649  Internet-Draft       LinuxSampler Contro Line 3168  Internet-Draft       LinuxSampler Contro
3168     Possible Answers:     Possible Answers:
3169    
3170        "OK" -        "OK" -
3171    
3172           on success           on success
3173    
3174        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3175    
3176           if MIDI input channel was set, but there are noteworthy           if MIDI input channel was set, but there are noteworthy
3177           issue(s) related, providing an appropriate warning code and           issue(s) related, providing an appropriate warning code and
3178           warning message           warning message
3179    
3180        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3181    
3182           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3183           error message           error message
3184    
# Line 2662  Internet-Draft       LinuxSampler Contro Line 3186  Internet-Draft       LinuxSampler Contro
3186    
3187    
3188    
3189  6.4.21  Setting channel volume  
3190    
3191    Schoenebeck               Expires July 2, 2007                 [Page 57]
3192    
3193    Internet-Draft        LinuxSampler Control Protocol        December 2006
3194    
3195    
3196    
3197    
3198    6.4.21.  Setting channel volume
3199    
3200     The front-end can alter the volume of a sampler channel by sending     The front-end can alter the volume of a sampler channel by sending
3201     the following command:     the following command:
# Line 2677  Internet-Draft       LinuxSampler Contro Line 3210  Internet-Draft       LinuxSampler Contro
3210     Possible Answers:     Possible Answers:
3211    
3212        "OK" -        "OK" -
3213    
3214           on success           on success
3215    
3216        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3217    
3218           if channel volume was set, but there are noteworthy issue(s)           if channel volume was set, but there are noteworthy issue(s)
3219           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
3220             message
3221    
3222          "ERR:<error-code>:<error-message>" -
3223    
3224             in case it failed, providing an appropriate error code and
3225             error message
3226    
3227       Examples:
3228    
3229    
3230    
3231    6.4.22.  Muting a sampler channel
3232    
3233       The front-end can mute/unmute a specific sampler channel by sending
3234       the following command:
3235    
3236          SET CHANNEL MUTE <sampler-channel> <mute>
3237    
3238       Where <sampler-channel> is the respective sampler channel number as
3239       returned by the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS"
3240       (Section 6.4.4) command and <mute> should be replaced either by "1"
3241       to mute the channel or "0" to unmute the channel.
3242    
3243       Possible Answers:
3244    
3245    
3246    
3247  Schoenebeck            Expires November 22, 2005               [Page 48]  Schoenebeck               Expires July 2, 2007                 [Page 58]
3248    
3249  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
3250    
3251    
3252           message        "OK" -
3253    
3254             on success
3255    
3256          "WRN:<warning-code>:<warning-message>" -
3257    
3258             if the channel was muted/unmuted, but there are noteworthy
3259             issue(s) related, providing an appropriate warning code and
3260             warning message
3261    
3262          "ERR:<error-code>:<error-message>" -
3263    
3264             in case it failed, providing an appropriate error code and
3265             error message
3266    
3267       Examples:
3268    
3269    
3270    
3271    6.4.23.  Soloing a sampler channel
3272    
3273       The front-end can solo/unsolo a specific sampler channel by sending
3274       the following command:
3275    
3276          SET CHANNEL SOLO <sampler-channel> <solo>
3277    
3278       Where <sampler-channel> is the respective sampler channel number as
3279       returned by the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS"
3280       (Section 6.4.4) command and <solo> should be replaced either by "1"
3281       to solo the channel or "0" to unsolo the channel.
3282    
3283       Possible Answers:
3284    
3285          "OK" -
3286    
3287             on success
3288    
3289          "WRN:<warning-code>:<warning-message>" -
3290    
3291             if the channel was soloed/unsoloed, but there are noteworthy
3292             issue(s) related, providing an appropriate warning code and
3293             warning message
3294    
3295          "ERR:<error-code>:<error-message>" -
3296    
3297             in case it failed, providing an appropriate error code and
3298             error message
3299    
3300    
3301    
3302    
3303    Schoenebeck               Expires July 2, 2007                 [Page 59]
3304    
3305    Internet-Draft        LinuxSampler Control Protocol        December 2006
3306    
3307    
3308       Examples:
3309    
3310    
3311    
3312    6.4.24.  Assigning a MIDI instrument map to a sampler channel
3313    
3314       The front-end can assign a MIDI instrument map to a specific sampler
3315       channel by sending the following command:
3316    
3317          SET CHANNEL MIDI_INSTRUMENT_MAP <sampler-channel> <map>
3318    
3319       Where <sampler-channel> is the respective sampler channel number as
3320       returned by the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS"
3321       (Section 6.4.4) command and <map> can have the following
3322       possibilites:
3323    
3324          "NONE" -
3325    
3326             This is the default setting.  In this case the sampler channel
3327             is not assigned any MIDI instrument map and thus will ignore
3328             all MIDI program change messages.
3329    
3330          "DEFAULT" -
3331    
3332             The sampler channel will always use the default MIDI instrument
3333             map to handle MIDI program change messages.
3334    
3335          numeric ID -
3336    
3337             You can assign a specific MIDI instrument map by replacing
3338             <map> with the respective numeric ID of the MIDI instrument map
3339             as returned by the "LIST MIDI_INSTRUMENT_MAPS" (Section 6.7.4)
3340             command.  Once that map will be deleted, the sampler channel
3341             would fall back to "NONE".
3342    
3343       Read chapter "MIDI Instrument Mapping" (Section 6.7) for details
3344       regarding MIDI instrument mapping.
3345    
3346       Possible Answers:
3347    
3348          "OK" -
3349    
3350             on success
3351    
3352          "ERR:<error-code>:<error-message>" -
3353    
3354             in case it failed, providing an appropriate error code and
3355             error message
3356    
3357    
3358    
3359    Schoenebeck               Expires July 2, 2007                 [Page 60]
3360    
3361    Internet-Draft        LinuxSampler Control Protocol        December 2006
3362    
3363    
3364       Examples:
3365    
3366    
3367    
3368    6.4.25.  Adding an effect send to a sampler channel
3369    
3370       The front-end can create an additional effect send on a specific
3371       sampler channel by sending the following command:
3372    
3373          CREATE FX_SEND <sampler-channel> <midi-ctrl> [<name>]
3374    
3375       Where <sampler-channel> is the respective sampler channel number as
3376       returned by the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS"
3377       (Section 6.4.4) command, that is the sampler channel on which the
3378       effect send should be created on, <midi-ctrl> is a number between
3379       0..127 defining the MIDI controller which can alter the effect send
3380       level and <name> is an optional argument defining a name for the
3381       effect send entity.  The name does not have to be unique.
3382    
3383       By default, that is as initial routing, the effect send's audio
3384       channels are automatically routed to the last audio channels of the
3385       sampler channel's audio output device, that way you can i.e. first
3386       increase the amount of audio channels on the audio output device for
3387       having dedicated effect send output channels and when "CREATE
3388       FX_SEND" is called, those channels will automatically be picked.  You
3389       can alter the destination channels however with "SET FX_SEND
3390       AUDIO_OUTPUT_CHANNEL" (Section 6.4.30).
3391    
3392       Note: Create effect sends on a sampler channel only when needed,
3393       because having effect sends on a sampler channel will decrease
3394       runtime performance, because for implementing channel effect sends,
3395       separate (sampler channel local) audio buffers are needed to render
3396       and mix the voices and route the audio signal afterwards to the
3397       master outputs and effect send outputs (along with their respective
3398       effect send levels).  A sampler channel without effect sends however
3399       can mix its voices directly into the audio output devices's audio
3400       buffers and is thus faster.
3401    
3402       Possible Answers:
3403    
3404          "OK[<fx-send-id>]" -
3405    
3406             in case a new effect send could be added to the sampler
3407             channel, where <fx-send-id> reflects the unique ID of the newly
3408             created effect send entity
3409    
3410    
3411    
3412    
3413    
3414    
3415    Schoenebeck               Expires July 2, 2007                 [Page 61]
3416    
3417    Internet-Draft        LinuxSampler Control Protocol        December 2006
3418    
3419    
3420          "ERR:<error-code>:<error-message>" -
3421    
3422             when a new effect send could not be added, i.e. due to invalid
3423             parameters
3424    
3425       Examples:
3426    
3427          C: "CREATE FX_SEND 0 91 'Reverb Send'"
3428    
3429          S: "OK[0]"
3430    
3431          C: "CREATE FX_SEND 0 93"
3432    
3433          S: "OK[1]"
3434    
3435    6.4.26.  Removing an effect send from a sampler channel
3436    
3437       The front-end can remove an existing effect send on a specific
3438       sampler channel by sending the following command:
3439    
3440          DESTROY FX_SEND <sampler-channel> <fx-send-id>
3441    
3442       Where <sampler-channel> is the respective sampler channel number as
3443       returned by the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS"
3444       (Section 6.4.4) command, that is the sampler channel from which the
3445       effect send should be removed from and <fx-send-id> is the respective
3446       effect send number as returned by the "CREATE FX_SEND"
3447       (Section 6.4.25) or "LIST FX_SENDS" (Section 6.4.28) command.
3448    
3449       Possible Answers:
3450    
3451          "OK" -
3452    
3453             on success
3454    
3455        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3456    
3457           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3458           error message           error message
3459    
3460       Example:
3461    
3462          C: "DESTROY FX_SEND 0 0"
3463    
3464          S: "OK"
3465    
3466    
3467    
3468    
3469    
3470    
3471    Schoenebeck               Expires July 2, 2007                 [Page 62]
3472    
3473    Internet-Draft        LinuxSampler Control Protocol        December 2006
3474    
3475    
3476    6.4.27.  Getting amount of effect sends on a sampler channel
3477    
3478       The front-end can ask for the amount of effect sends on a specific
3479       sampler channel by sending the following command:
3480    
3481          GET FX_SENDS <sampler-channel>
3482    
3483       Where <sampler-channel> is the respective sampler channel number as
3484       returned by the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS"
3485       (Section 6.4.4) command.
3486    
3487       Possible Answers:
3488    
3489          The sampler will answer by returning the number of effect sends on
3490          the given sampler channel.
3491    
3492       Example:
3493    
3494          C: "GET FX_SENDS 0"
3495    
3496          S: "2"
3497    
3498    6.4.28.  Listing all effect sends on a sampler channel
3499    
3500       The front-end can ask for a list of effect sends on a specific
3501       sampler channel by sending the following command:
3502    
3503          LIST FX_SENDS <sampler-channel>
3504    
3505       Where <sampler-channel> is the respective sampler channel number as
3506       returned by the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS"
3507       (Section 6.4.4) command.
3508    
3509       Possible Answers:
3510    
3511          The sampler will answer by returning a comma separated list with
3512          all effect sends' numerical IDs on the given sampler channel.
3513    
3514     Examples:     Examples:
3515    
3516          C: "LIST FX_SENDS 0"
3517    
3518          S: "0,1"
3519    
3520          C: "LIST FX_SENDS 1"
3521    
3522          S: ""
3523    
3524    
3525    
3526    
3527    Schoenebeck               Expires July 2, 2007                 [Page 63]
3528    
3529    Internet-Draft        LinuxSampler Control Protocol        December 2006
3530    
3531    
3532    6.4.29.  Getting effect send information
3533    
3534       The front-end can ask for the current settings of an effect send
3535       entity by sending the following command:
3536    
3537          GET FX_SEND INFO <sampler-channel> <fx-send-id>
3538    
3539       Where <sampler-channel> is the sampler channel number as returned by
3540       the "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS" (Section 6.4.4)
3541       command and <fx-send-id> reflects the numerical ID of the effect send
3542       entity as returned by the "CREATE FX_SEND" (Section 6.4.25) or "LIST
3543       FX_SENDS" (Section 6.4.28) command.
3544    
3545       Possible Answers:
3546    
3547          The sampler will answer by sending a <CRLF> separated list.  Each
3548          answer line begins with the settings category name followed by a
3549          colon and then a space character <SP> and finally the info
3550          character string to that setting category.  At the moment the
3551          following categories are defined:
3552    
3553    
3554    
3555             NAME -
3556    
3557                name of the effect send entity
3558    
3559             AUDIO_OUTPUT_ROUTING -
3560    
3561                comma separated list which reflects to which audio channel
3562                of the selected audio output device each effect send output
3563                channel is routed to, e.g. "0,3" would mean the effect
3564                send's output channel 0 is routed to channel 0 of the audio
3565                output device and the effect send's output channel 1 is
3566                routed to the channel 3 of the audio output device (see "SET
3567                FX_SEND AUDIO_OUTPUT_CHANNEL" (Section 6.4.30) for details)
3568    
3569       The mentioned fields above don't have to be in particular order.
3570    
3571       Example:
3572    
3573          C: "GET FX_SEND INFO 0 0"
3574    
3575          S: "NAME: Reverb Send"
3576    
3577             "AUDIO_OUTPUT_ROUTING: 2,3"
3578    
3579    
3580    
3581    
3582    
3583    Schoenebeck               Expires July 2, 2007                 [Page 64]
3584    
3585    Internet-Draft        LinuxSampler Control Protocol        December 2006
3586    
3587    
3588             "."
3589    
3590    6.4.30.  Altering effect send's audio routing
3591    
3592       The front-end can alter the destination of an effect send's audio
3593       channel on a specific sampler channel by sending the following
3594       command:
3595    
3596          SET FX_SEND AUDIO_OUTPUT_CHANNEL <sampler-chan> <fx-send-id>
3597          <audio-src> <audio-dst>
3598    
3599       Where <sampler-chan> is the sampler channel number as returned by the
3600       "ADD CHANNEL" (Section 6.4.5) or "LIST CHANNELS" (Section 6.4.4)
3601       command, <fx-send-id> reflects the numerical ID of the effect send
3602       entity as returned by the "CREATE FX_SEND" (Section 6.4.25) or "LIST
3603       FX_SENDS" (Section 6.4.28) command, <audio-src> is the numerical ID
3604       of the effect send's audio channel which should be rerouted and
3605       <audio-dst> is the numerical ID of the audio channel of the selected
3606       audio output device where <audio-src> should be routed to.
3607    
3608       Note that effect sends can only route audio to the same audio output
3609       device as assigned to the effect send's sampler channel.  Also note
3610       that an effect send entity does always have exactly as much audio
3611       channels as its sampler channel.  So if the sampler channel is
3612       stereo, the effect send does have two audio channels as well.  Also
3613       keep in mind that the amount of audio channels on a sampler channel
3614       might be dependant not only to the deployed sampler engine on the
3615       sampler channel, but also dependant to the instrument currently
3616       loaded.  However you can (effectively) turn an i.e. stereo effect
3617       send into a mono one by simply altering its audio routing
3618       appropriately.
3619    
3620       Possible Answers:
3621    
3622          "OK" -
3623    
3624             on success
3625    
3626          "WRN:<warning-code>:<warning-message>" -
3627    
3628             if audio output channel was set, but there are noteworthy
3629             issue(s) related, providing an appropriate warning code and
3630             warning message
3631    
3632          "ERR:<error-code>:<error-message>" -
3633    
3634             in case it failed, providing an appropriate error code and
3635             error message
3636    
3637    
3638    
3639    Schoenebeck               Expires July 2, 2007                 [Page 65]
3640    
3641    Internet-Draft        LinuxSampler Control Protocol        December 2006
3642    
3643    
3644       Example:
3645    
3646          C: "SET FX_SEND AUDIO_OUTPUT_CHANNEL 0 0 0 2"
3647    
3648          S: "OK"
3649    
3650  6.4.22  Resetting a sampler channel  6.4.31.  Resetting a sampler channel
3651    
3652     The front-end can reset a particular sampler channel by sending the     The front-end can reset a particular sampler channel by sending the
3653     following command:     following command:
# Line 2713  Internet-Draft       LinuxSampler Contro Line 3662  Internet-Draft       LinuxSampler Contro
3662     Possible Answers:     Possible Answers:
3663    
3664        "OK" -        "OK" -
3665    
3666           on success           on success
3667    
3668        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3669    
3670           if channel was reset, but there are noteworthy issue(s)           if channel was reset, but there are noteworthy issue(s)
3671           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
3672           message           message
3673    
3674        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3675    
3676           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3677           error message           error message
3678    
# Line 2726  Internet-Draft       LinuxSampler Contro Line 3680  Internet-Draft       LinuxSampler Contro
3680    
3681    
3682    
3683  6.5  Controlling connection  6.5.  Controlling connection
3684    
3685     The following commands are used to control the connection to     The following commands are used to control the connection to
3686     LinuxSampler.     LinuxSampler.
3687    
3688  6.5.1  Register front-end for receiving event messages  6.5.1.  Register front-end for receiving event messages
3689    
3690     The front-end can register itself to the LinuxSampler application to     The front-end can register itself to the LinuxSampler application to
3691     be informed about noteworthy events by sending this command:     be informed about noteworthy events by sending this command:
3692    
3693    
3694    
3695    Schoenebeck               Expires July 2, 2007                 [Page 66]
   
 Schoenebeck            Expires November 22, 2005               [Page 49]  
3696    
3697  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
3698    
3699    
3700        SUBSCRIBE <event-id>        SUBSCRIBE <event-id>
# Line 2753  Internet-Draft       LinuxSampler Contro Line 3705  Internet-Draft       LinuxSampler Contro
3705     Possible Answers:     Possible Answers:
3706    
3707        "OK" -        "OK" -
3708    
3709           on success           on success
3710    
3711        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3712    
3713           if registration succeeded, but there are noteworthy issue(s)           if registration succeeded, but there are noteworthy issue(s)
3714           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
3715           message           message
3716    
3717        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3718    
3719           in case it failed, providing an appropriate error code and           in case it failed, providing an appropriate error code and
3720           error message           error message
3721    
# Line 2766  Internet-Draft       LinuxSampler Contro Line 3723  Internet-Draft       LinuxSampler Contro
3723    
3724    
3725    
3726  6.5.2  Unregister front-end for not receiving event messages  6.5.2.  Unregister front-end for not receiving event messages
3727    
3728     The front-end can unregister itself if it doesn't want to receive     The front-end can unregister itself if it doesn't want to receive
3729     event messages anymore by sending the following command:     event messages anymore by sending the following command:
# Line 2779  Internet-Draft       LinuxSampler Contro Line 3736  Internet-Draft       LinuxSampler Contro
3736     Possible Answers:     Possible Answers:
3737    
3738        "OK" -        "OK" -
3739    
3740           on success           on success
3741    
3742        "WRN:<warning-code>:<warning-message>" -        "WRN:<warning-code>:<warning-message>" -
3743    
3744           if unregistration succeeded, but there are noteworthy issue(s)           if unregistration succeeded, but there are noteworthy issue(s)
3745           related, providing an appropriate warning code and warning           related, providing an appropriate warning code and warning
3746           message           message
       "ERR:<error-code>:<error-message>" -  
          in case it failed, providing an appropriate error code and  
          error message  
3747    
    Examples:  
3748    
3749    
3750    
3751    Schoenebeck               Expires July 2, 2007                 [Page 67]
3752    
3753    Internet-Draft        LinuxSampler Control Protocol        December 2006
3754    
3755    
3756          "ERR:<error-code>:<error-message>" -
3757    
3758             in case it failed, providing an appropriate error code and
3759             error message
3760    
3761       Examples:
3762    
 Schoenebeck            Expires November 22, 2005               [Page 50]  
   
 Internet-Draft       LinuxSampler Control Protocol              May 2005  
3763    
3764    
3765  6.5.3  Enable or disable echo of commands  6.5.3.  Enable or disable echo of commands
3766    
3767     To enable or disable back sending of commands to the client the     To enable or disable back sending of commands to the client the
3768     following command can be used:     following command can be used:
# Line 2818  Internet-Draft       LinuxSampler Contro Line 3779  Internet-Draft       LinuxSampler Contro
3779     Possible Answers:     Possible Answers:
3780    
3781        "OK" -        "OK" -
3782    
3783           usually           usually
3784    
3785        "ERR:<error-code>:<error-message>" -        "ERR:<error-code>:<error-message>" -
3786           on syntax error, e.g.  non boolean value  
3787             on syntax error, e.g. non boolean value
3788    
3789     Examples:     Examples:
3790    
3791    
3792    
3793  6.5.4  Close client connection  6.5.4.  Close client connection
3794    
3795     The client can close its network connection to LinuxSampler by     The client can close its network connection to LinuxSampler by
3796     sending the following command:     sending the following command:
# Line 2836  Internet-Draft       LinuxSampler Contro Line 3800  Internet-Draft       LinuxSampler Contro
3800     This is probably more interesting for manual telnet connections to     This is probably more interesting for manual telnet connections to
3801     LinuxSampler than really useful for a front-end implementation.     LinuxSampler than really useful for a front-end implementation.
3802    
3803  6.6  Global commands  
3804    
3805    
3806    
3807    Schoenebeck               Expires July 2, 2007                 [Page 68]
3808    
3809    Internet-Draft        LinuxSampler Control Protocol        December 2006
3810    
3811    
3812    6.6.  Global commands
3813    
3814     The following commands have global impact on the sampler.     The following commands have global impact on the sampler.
3815    
3816  6.6.1  Reset sampler  6.6.1.  Current number of active voices
3817    
3818     The front-end can reset the whole sampler by sending the following     The front-end can ask for the current number of active voices on the
3819     command:     sampler by sending the following command:
3820    
3821        RESET        GET TOTAL_VOICE_COUNT
3822    
3823     Possible Answers:     Possible Answers:
3824    
3825          LinuxSampler will answer by returning the number of all active
3826          voices on the sampler.
3827    
3828    6.6.2.  Maximum amount of active voices
3829    
3830       The front-end can ask for the maximum number of active voices by
3831       sending the following command:
3832    
3833  Schoenebeck            Expires November 22, 2005               [Page 51]        GET TOTAL_VOICE_COUNT_MAX
3834    
3835  Internet-Draft       LinuxSampler Control Protocol              May 2005     Possible Answers:
3836    
3837          LinuxSampler will answer by returning the maximum number of active
3838          voices.
3839    
3840    6.6.3.  Reset sampler
3841    
3842       The front-end can reset the whole sampler by sending the following
3843       command:
3844    
3845          RESET
3846    
3847       Possible Answers:
3848    
3849        "OK" -        "OK" -
3850    
3851           always           always
3852    
3853     Examples:     Examples:
3854    
3855    
3856    
3857  6.6.2  General sampler informations  
3858    
3859    
3860    
3861    
3862    
3863    Schoenebeck               Expires July 2, 2007                 [Page 69]
3864    
3865    Internet-Draft        LinuxSampler Control Protocol        December 2006
3866    
3867    
3868    6.6.4.  General sampler informations
3869    
3870     The client can ask for general informations about the LinuxSampler     The client can ask for general informations about the LinuxSampler
3871     instance by sending the following command:     instance by sending the following command:
# Line 2879  Internet-Draft       LinuxSampler Contro Line 3880  Internet-Draft       LinuxSampler Contro
3880        character string to that information category.  At the moment the        character string to that information category.  At the moment the
3881        following categories are defined:        following categories are defined:
3882    
3883    
3884    
3885           DESCRIPTION -           DESCRIPTION -
3886    
3887              arbitrary textual description about the sampler              arbitrary textual description about the sampler
3888    
3889           VERSION -           VERSION -
3890    
3891              version of the sampler              version of the sampler
3892    
3893           PROTOCOL_VERSION -           PROTOCOL_VERSION -
3894    
3895              version of the LSCP specification the sampler complies with              version of the LSCP specification the sampler complies with
3896              (see Section 2 for details)              (see Section 2 for details)
3897    
3898     The mentioned fields above don't have to be in particular order.     The mentioned fields above don't have to be in particular order.
3899     Other fields might be added in future.     Other fields might be added in future.
3900    
3901    6.6.5.  Getting global volume attenuation
3902    
3903       The client can ask for the current global sampler-wide volume
3904       attenuation by sending the following command:
3905    
3906          GET VOLUME
3907    
3908       Possible Answers:
3909    
3910          The sampler will always answer by returning the optional dotted
3911          floating point coefficient, reflecting the current global volume
3912          attenuation.
3913    
3914       Note: it is up to the respective sampler engine whether to obey that
3915       global volume parameter or not, but in general all engines SHOULD use
3916    
3917    
3918    
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3920    
3921    Internet-Draft        LinuxSampler Control Protocol        December 2006
3922    
3923    
3924       this parameter.
3925    
3926    6.6.6.  Setting global volume attenuation
3927    
3928       The client can alter the current global sampler-wide volume
3929       attenuation by sending the following command:
3930    
3931          SET VOLUME <volume>
3932    
3933       Where <volume> should be replaced by the optional dotted floating
3934       point value, reflecting the new global volume parameter.  This value
3935       might usually be in the range between 0.0 and 1.0, that is for
3936       attenuating the overall volume.
3937    
3938       Possible Answers:
3939    
3940          "OK" -
3941    
3942             on success
3943    
3944          "WRN:<warning-code>:<warning-message>" -
3945    
3946             if the global volume was set, but there are noteworthy issue(s)
3947             related, providing an appropriate warning code and warning
3948             message
3949    
3950          "ERR:<error-code>:<error-message>" -
3951    
3952             in case it failed, providing an appropriate error code and
3953             error message
3954    
3955    6.7.  MIDI Instrument Mapping
3956    
3957       The MIDI protocol provides a way to switch between instruments by
3958       sending so called MIDI bank select and MIDI program change messages
3959       which are essentially just numbers.  The following commands allow to
3960       actually map arbitrary MIDI bank select / program change numbers with
3961       real instruments.
3962    
3963       The sampler allows to manage an arbitrary amount of MIDI instrument
3964       maps which define which instrument to load on which MIDI program
3965       change message.
3966    
3967       By default, that is when the sampler is launched, there is no map,
3968       thus the sampler will simply ignore all program change messages.  The
3969       front-end has to explicitly create at least one map, add entries to
3970       the map and tell the respective sampler channel(s) which MIDI
3971       instrument map to use, so the sampler knows how to react on a given
3972    
3973    
3974    
3975    Schoenebeck               Expires July 2, 2007                 [Page 71]
3976    
3977    Internet-Draft        LinuxSampler Control Protocol        December 2006
3978    
3979    
3980       program change message on the respective sampler channel, that is by
3981       switching to the respectively defined engine type and loading the
3982       respective instrument.  See command "SET CHANNEL MIDI_INSTRUMENT_MAP"
3983       (Section 6.4.24) for how to assign a MIDI instrument map to a sampler
3984       channel.
3985    
3986       Also note per MIDI specification a bank select message does not cause
3987       to switch to another instrument.  Instead when receiving a bank
3988       select message the bank value will be stored and a subsequent program
3989       change message (which may occur at any time) will finally cause the
3990       sampler to switch to the respective instrument as reflected by the
3991       current MIDI instrument map.
3992    
3993    6.7.1.  Create a new MIDI instrument map
3994    
3995       The front-end can add a new MIDI instrument map by sending the
3996       following command:
3997    
3998          ADD MIDI_INSTRUMENT_MAP [<name>]
3999    
4000       Where <name> is an optional argument allowing to assign a custom name
4001       to the new map.  MIDI instrument Map names do not have to be unique.
4002    
4003       Possible Answers:
4004    
4005          "OK[<map>]" -
4006    
4007             in case a new MIDI instrument map could be added, where <map>
4008             reflects the unique ID of the newly created MIDI instrument map
4009    
4010          "ERR:<error-code>:<error-message>" -
4011    
4012             when a new map could not be created, which might never occur in
4013             practice
4014    
4015       Examples:
4016    
4017          C: "ADD MIDI_INSTRUMENT_MAP 'Standard Map'"
4018    
4019          S: "OK[0]"
4020    
4021          C: "ADD MIDI_INSTRUMENT_MAP 'Standard Drumkit'"
4022    
4023          S: "OK[1]"
4024    
4025          C: "ADD MIDI_INSTRUMENT_MAP"
4026    
4027    
4028    
4029    
4030    
4031    Schoenebeck               Expires July 2, 2007                 [Page 72]
4032    
4033    Internet-Draft        LinuxSampler Control Protocol        December 2006
4034    
4035    
4036          S: "OK[5]"
4037    
4038    6.7.2.  Delete one particular or all MIDI instrument maps
4039    
4040       The front-end can delete a particular MIDI instrument map by sending
4041       the following command:
4042    
4043          REMOVE MIDI_INSTRUMENT_MAP <map>
4044    
4045       Where <map> reflects the unique ID of the map to delete as returned
4046       by the "LIST MIDI_INSTRUMENT_MAPS" (Section 6.7.4) command.
4047    
4048       The front-end can delete all MIDI instrument maps by sending the
4049       following command:
4050    
4051          REMOVE MIDI_INSTRUMENT_MAP ALL
4052    
4053       Possible Answers:
4054    
4055          "OK" -
4056    
4057             in case the map(s) could be deleted
4058    
4059          "ERR:<error-code>:<error-message>" -
4060    
4061             when the given map does not exist
4062    
4063       Examples:
4064    
4065          C: "REMOVE MIDI_INSTRUMENT_MAP 0"
4066    
4067          S: "OK"
4068    
4069          C: "REMOVE MIDI_INSTRUMENT_MAP ALL"
4070    
4071          S: "OK"
4072    
4073    6.7.3.  Get amount of existing MIDI instrument maps
4074    
4075       The front-end can retrieve the current amount of MIDI instrument maps
4076       by sending the following command:
4077    
4078          GET MIDI_INSTRUMENT_MAPS
4079    
4080       Possible Answers:
4081    
4082    
4083    
4084    
4085    
4086    
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4089    Internet-Draft        LinuxSampler Control Protocol        December 2006
4090    
4091    
4092          The sampler will answer by returning the current number of MIDI
4093          instrument maps.
4094    
4095       Example:
4096    
4097          C: "GET MIDI_INSTRUMENT_MAPS"
4098    
4099          S: "2"
4100    
4101    6.7.4.  Getting all created MIDI instrument maps
4102    
4103       The number of MIDI instrument maps can change on runtime.  To get the
4104       current list of MIDI instrument maps, the front-end can send the
4105       following command:
4106    
4107          LIST MIDI_INSTRUMENT_MAPS
4108    
4109       Possible Answers:
4110    
4111          The sampler will answer by returning a comma separated list with
4112          all MIDI instrument maps' numerical IDs.
4113    
4114       Example:
4115    
4116          C: "LIST MIDI_INSTRUMENT_MAPS"
4117    
4118          S: "0,1,5,12"
4119    
4120    6.7.5.  Getting MIDI instrument map information
4121    
4122       The front-end can ask for the current settings of a MIDI instrument
4123       map by sending the following command:
4124    
4125          GET MIDI_INSTRUMENT_MAP INFO <map>
4126    
4127       Where <map> is the numerical ID of the map the front-end is
4128       interested in as returned by the "LIST MIDI_INSTRUMENT_MAPS"
4129       (Section 6.7.4) command.
4130    
4131       Possible Answers:
4132    
4133          LinuxSampler will answer by sending a <CRLF> separated list.  Each
4134          answer line begins with the settings category name followed by a
4135          colon and then a space character <SP> and finally the info
4136          character string to that setting category.  At the moment the
4137          following categories are defined:
4138    
4139    
4140    
4141    
4142    
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4144    
4145    Internet-Draft        LinuxSampler Control Protocol        December 2006
4146    
4147    
4148    
4149    
4150             NAME -
4151    
4152                custom name of the given map, which does not have to be
4153                unique
4154    
4155       The mentioned fields above don't have to be in particular order.
4156    
4157       Example:
4158    
4159          C: "GET MIDI_INSTRUMENT_MAP INFO 0"
4160    
4161          S: "NAME: Standard Map"
4162    
4163             "."
4164    
4165    6.7.6.  Renaming a MIDI instrument map
4166    
4167       The front-end can alter the custom name of a MIDI instrument map by
4168       sending the following command:
4169    
4170          SET MIDI_INSTRUMENT_MAP NAME <map> <name>
4171    
4172       Where <map> is the numerical ID of the map and <name> the new custom
4173       name of the map, which does not have to be unique.
4174    
4175       Possible Answers:
4176    
4177          "OK" -
4178    
4179             on success
4180    
4181          "ERR:<error-code>:<error-message>" -
4182    
4183             in case the given map does not exist
4184    
4185       Example:
4186    
4187          C: "SET MIDI_INSTRUMENT_MAP NAME 0 'Foo instruments'"
4188    
4189          S: "OK"
4190    
4191    6.7.7.  Create or replace a MIDI instrument map entry
4192    
4193       The front-end can create a new or replace an existing entry in a
4194       sampler's MIDI instrument map by sending the following command:
4195    
4196    
4197    
4198    
4199    Schoenebeck               Expires July 2, 2007                 [Page 75]
4200    
4201    Internet-Draft        LinuxSampler Control Protocol        December 2006
4202    
4203    
4204          MAP MIDI_INSTRUMENT <map> <midi_bank> <midi_prog> <engine_name>
4205          <filename> <instrument_index> <volume_value> [<instr_load_mode>]
4206          [<name>]
4207    
4208       Where <map> is the numeric ID of the map to alter, <midi_bank> is an
4209       integer value between 0..16383 reflecting the MIDI bank select index,
4210       <midi_prog> an integer value between 0..127 reflecting the MIDI
4211       program change index, <engine_name> a sampler engine name as returned
4212       by the "LIST AVAILABLE_ENGINES" (Section 6.4.8) command (not
4213       encapsulated into apostrophes), <filename> the name of the
4214       instrument's file to be deployed (encapsulated into apostrophes),
4215       <instrument_index> the index (integer value) of the instrument within
4216       the given file, <volume_value> reflects the master volume of the
4217       instrument as optionally dotted number (where a value < 1.0 means
4218       attenuation and a value > 1.0 means amplification).  This parameter
4219       easily allows to adjust the volume of all intruments within a custom
4220       instrument map without having to adjust their instrument files.  The
4221       OPTIONAL <instr_load_mode> argument defines the life time of the
4222       instrument, that is when the instrument should be loaded, when freed
4223       and has exactly the following possibilities:
4224    
4225          "ON_DEMAND" -
4226    
4227             The instrument will be loaded when needed, that is when
4228             demanded by at least one sampler channel.  It will immediately
4229             be freed from memory when not needed by any sampler channel
4230             anymore.
4231    
4232          "ON_DEMAND_HOLD" -
4233    
4234             The instrument will be loaded when needed, that is when
4235             demanded by at least one sampler channel.  It will be kept in
4236             memory even when not needed by any sampler channel anymore.
4237             Instruments with this mode are only freed when the sampler is
4238             reset or all mapping entries with this mode (and respective
4239             instrument) are explicitly changed to "ON_DEMAND" and no
4240             sampler channel is using the instrument anymore.
4241    
4242          "PERSISTENT" -
4243    
4244             The instrument will immediately be loaded into memory in the
4245             background when this mapping command is sent and the instrument
4246             is kept all the time.  Instruments with this mode are only
4247             freed when the sampler is reset or all mapping entries with
4248             this mode (and respective instrument) are explicitly changed to
4249             "ON_DEMAND" and no sampler channel is using the instrument
4250             anymore.
4251    
4252    
4253    
4254    
4255    Schoenebeck               Expires July 2, 2007                 [Page 76]
4256    
4257    Internet-Draft        LinuxSampler Control Protocol        December 2006
4258    
4259    
4260          not supplied -
4261    
4262             In case there is no <instr_load_mode> argument given, it will
4263             be up to the InstrumentManager to decide which mode to use.
4264             Usually it will use "ON_DEMAND" if an entry for the given
4265             instrument does not exist in the InstrumentManager's list yet,
4266             otherwise if an entry already exists, it will simply stick with
4267             the mode currently reflected by the already existing entry,
4268             that is it will not change the mode.
4269    
4270       The <instr_load_mode> argument thus allows to define an appropriate
4271       strategy (low memory consumption vs. fast instrument switching) for
4272       each instrument individually.  Note, the following restrictions apply
4273       to this argument: "ON_DEMAND_HOLD" and "PERSISTENT" have to be
4274       supported by the respective sampler engine (which is technically the
4275       case when the engine provides an InstrumentManager for its format).
4276       If this is not the case the argument will automatically fall back to
4277       the default value "ON_DEMAND".  Also the load mode of one instrument
4278       may automatically change the laod mode of other instrument(s), i.e.
4279       because the instruments are part of the same file and the engine does
4280       not allow a way to manage load modes for them individually.  Due to
4281       this, in case the frontend shows the load modes of entries, the
4282       frontend should retrieve the actual mode by i.e. sending "GET
4283       MIDI_INSTRUMENT INFO" (Section 6.7.11) command(s).  Finally the
4284       OPTIONAL <name> argument allows to set a custom name (encapsulated
4285       into apostrophes) for the mapping entry, useful for frontends for
4286       displaying an appropriate name for mapped instruments (using "GET
4287       MIDI_INSTRUMENT INFO" (Section 6.7.11)).
4288    
4289       The "MAP MIDI_INSTRUMENT" command will immediately return, thus it
4290       will not block when an instrument is to be loaded due to a
4291       "PERSISTENT" type entry as instruments are loaded in the background.
4292       As a consequence this command may not necessarily return an error
4293       i.e. when the given instrument file does not exist or may turn out to
4294       be corrupt.
4295    
4296       Possible Answers:
4297    
4298          "OK" -
4299    
4300             usually
4301    
4302          "ERR:<error-code>:<error-message>" -
4303    
4304             when the given map or engine does not exist or a value is out
4305             of range
4306    
4307       Examples:
4308    
4309    
4310    
4311    Schoenebeck               Expires July 2, 2007                 [Page 77]
4312    
4313    Internet-Draft        LinuxSampler Control Protocol        December 2006
4314    
4315    
4316          C: "MAP MIDI_INSTRUMENT 0 3 0 gig '/usr/share/Steinway D.gig' 0
4317          0.8 PERSISTENT"
4318    
4319          S: "OK"
4320    
4321          C: "MAP MIDI_INSTRUMENT 0 4 50 gig '/home/john/foostrings.gig' 7
4322          1.0"
4323    
4324          S: "OK"
4325    
4326          C: "MAP MIDI_INSTRUMENT 0 0 0 gig '/usr/share/piano.gig' 0 1.0
4327          'Normal Piano'"
4328    
4329          S: "OK"
4330    
4331          C: "MAP MIDI_INSTRUMENT 0 1 0 gig '/usr/share/piano.gig' 0 0.25
4332          'Silent Piano'"
4333    
4334          S: "OK"
4335    
4336          C: "MAP MIDI_INSTRUMENT 1 8 120 gig '/home/joe/foodrums.gig' 0 1.0
4337          PERSISTENT 'Foo Drumkit'"
4338    
4339          S: "OK"
4340    
4341    6.7.8.  Getting ammount of MIDI instrument map entries
4342    
4343       The front-end can query the amount of currently existing entries in a
4344       MIDI instrument map by sending the following command:
4345    
4346          GET MIDI_INSTRUMENTS <map>
4347    
4348       The front-end can query the amount of currently existing entries in
4349       all MIDI instrument maps by sending the following command:
4350    
4351          GET MIDI_INSTRUMENTS ALL
4352    
4353       Possible Answers:
4354    
4355          The sampler will answer by sending the current number of entries
4356          in the MIDI instrument map(s).
4357    
4358       Example:
4359    
4360          C: "GET MIDI_INSTRUMENTS 0"
4361    
4362          S: "234"
4363    
4364    
4365    
4366    
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4368    
4369    Internet-Draft        LinuxSampler Control Protocol        December 2006
4370    
4371    
4372          C: "GET MIDI_INSTRUMENTS ALL"
4373    
4374          S: "954"
4375    
4376    6.7.9.  Getting indeces of all entries of a MIDI instrument map
4377    
4378       The front-end can query a list of all currently existing entries in a
4379       certain MIDI instrument map by sending the following command:
4380    
4381          LIST MIDI_INSTRUMENTS <map>
4382    
4383       Where <map> is the numeric ID of the MIDI instrument map.
4384    
4385       The front-end can query a list of all currently existing entries of
4386       all MIDI instrument maps by sending the following command:
4387    
4388          LIST MIDI_INSTRUMENTS ALL
4389    
4390       Possible Answers:
4391    
4392          The sampler will answer by sending a comma separated list of map
4393          ID - MIDI bank - MIDI program triples, where each triple is
4394          encapsulated into curly braces.  The list is returned in one
4395          single line.  Each triple just reflects the key of the respective
4396          map entry, thus subsequent "GET MIDI_INSTRUMENT INFO"
4397          (Section 6.7.11) command(s) are necessary to retrieve detailed
4398          informations about each entry.
4399    
4400       Example:
4401    
4402          C: "LIST MIDI_INSTRUMENTS 0"
4403    
4404          S: "{0,0,0},{0,0,1},{0,0,3},{0,1,4},{1,127,127}"
4405    
4406    6.7.10.  Remove an entry from the MIDI instrument map
4407    
4408       The front-end can delete an entry from a MIDI instrument map by
4409       sending the following command:
4410    
4411          UNMAP MIDI_INSTRUMENT <map> <midi_bank> <midi_prog>
4412    
4413       Where <map> is the numeric ID of the MIDI instrument map, <midi_bank>
4414       is an integer value between 0..16383 reflecting the MIDI bank value
4415       and <midi_prog> an integer value between 0..127 reflecting the MIDI
4416       program value of the map's entrie's key index triple.
4417    
4418       Possible Answers:
4419    
4420    
4421    
4422    
4423    Schoenebeck               Expires July 2, 2007                 [Page 79]
4424    
4425    Internet-Draft        LinuxSampler Control Protocol        December 2006
4426    
4427    
4428          "OK" -
4429    
4430             usually
4431    
4432          "ERR:<error-code>:<error-message>" -
4433    
4434             when index out of bounds
4435    
4436       Example:
4437    
4438          C: "UNMAP MIDI_INSTRUMENT 0 2 127"
4439    
4440          S: "OK"
4441    
4442    6.7.11.  Get current settings of MIDI instrument map entry
4443    
4444       The front-end can retrieve the current settings of a certain
4445       instrument map entry by sending the following command:
4446    
4447          GET MIDI_INSTRUMENT INFO <map> <midi_bank> <midi_prog>
4448    
4449       Where <map> is the numeric ID of the MIDI instrument map, <midi_bank>
4450       is an integer value between 0..16383 reflecting the MIDI bank value,
4451       <midi_bank> and <midi_prog> an integer value between 0..127
4452       reflecting the MIDI program value of the map's entrie's key index
4453       triple.
4454    
4455       Possible Answers:
4456    
4457          LinuxSampler will answer by sending a <CRLF> separated list.  Each
4458          answer line begins with the information category name followed by
4459          a colon and then a space character <SP> and finally the info
4460          character string to that info category.  At the moment the
4461          following categories are defined:
4462    
4463          "NAME" -
4464    
4465             Name for this MIDI instrument map entry (if defined).  This
4466             name shall be used by frontends for displaying a name for this
4467             mapped instrument.  It can be set and changed with the "MAP
4468             MIDI_INSTRUMENT" (Section 6.7.7) command and does not have to
4469             be unique.
4470    
4471          "ENGINE_NAME" -
4472    
4473             Name of the engine to be deployed for this instrument.
4474    
4475    
4476    
4477    
4478    
4479    Schoenebeck               Expires July 2, 2007                 [Page 80]
4480    
4481    Internet-Draft        LinuxSampler Control Protocol        December 2006
4482    
4483    
4484          "INSTRUMENT_FILE" -
4485    
4486             File name of the instrument.
4487    
4488          "INSTRUMENT_NR" -
4489    
4490             Index of the instrument within the file.
4491    
4492          "INSTRUMENT_NAME" -
4493    
4494             Name of the loaded instrument as reflected by its file.  In
4495             contrast to the "NAME" field, the "INSTRUMENT_NAME" field
4496             cannot be changed.
4497    
4498          "LOAD_MODE" -
4499    
4500             Life time of instrument (see "MAP MIDI_INSTRUMENT"
4501             (Section 6.7.7) for details about this setting).
4502    
4503          "VOLUME" -
4504    
4505             master volume of the instrument as optionally dotted number
4506             (where a value < 1.0 means attenuation and a value > 1.0 means
4507             amplification)
4508    
4509          The mentioned fields above don't have to be in particular order.
4510    
4511       Example:
4512    
4513          C: "GET MIDI_INSTRUMENT INFO 1 45 120"
4514    
4515          S: "NAME: Drums for Foo Song"
4516    
4517             "ENGINE_NAME: GigEngine"
4518    
4519             "INSTRUMENT_FILE: /usr/share/joesdrumkit.gig"
4520    
4521             "INSTRUMENT_NR: 0"
4522    
4523             "INSTRUMENT_NAME: Joe's Drumkit"
4524    
4525             "LOAD_MODE: PERSISTENT"
4526    
4527             "VOLUME: 1.0"
4528    
4529             "."
4530    
4531    
4532    
4533    
4534    
4535    Schoenebeck               Expires July 2, 2007                 [Page 81]
4536    
4537    Internet-Draft        LinuxSampler Control Protocol        December 2006
4538    
4539    
4540    6.7.12.  Clear MIDI instrument map
4541    
4542       The front-end can clear a whole MIDI instrument map, that is delete
4543       all its entries by sending the following command:
4544    
4545          CLEAR MIDI_INSTRUMENTS <map>
4546    
4547       Where <map> is the numeric ID of the map to clear.
4548    
4549       The front-end can clear all MIDI instrument maps, that is delete all
4550       entries of all maps by sending the following command:
4551    
4552          CLEAR MIDI_INSTRUMENTS ALL
4553    
4554       The command "CLEAR MIDI_INSTRUMENTS ALL" does not delete the maps,
4555       only their entries, thus the map's settings like custom name will be
4556       preservevd.
4557    
4558       Possible Answers:
4559    
4560          "OK" -
4561    
4562             always
4563    
4564       Examples:
4565    
4566          C: "CLEAR MIDI_INSTRUMENTS 0"
4567    
4568          S: "OK"
4569    
4570          C: "CLEAR MIDI_INSTRUMENTS ALL"
4571    
4572          S: "OK"
4573    
4574    
4575    
# Line 2908  Internet-Draft       LinuxSampler Contro Line 4587  Internet-Draft       LinuxSampler Contro
4587    
4588    
4589    
4590  Schoenebeck            Expires November 22, 2005               [Page 52]  
4591    Schoenebeck               Expires July 2, 2007                 [Page 82]
4592    
4593  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
4594    
4595    
4596  7.  Command Syntax  7.  Command Syntax
# Line 2920  Internet-Draft       LinuxSampler Contro Line 4600  Internet-Draft       LinuxSampler Contro
4600     where applicable.     where applicable.
4601    
4602     input =     input =
4603    
4604        line LF        line LF
4605    
4606        / line CR LF        / line CR LF
4607    
4608     line =     line =
4609    
4610        /* epsilon (empty line ignored) */        /* epsilon (empty line ignored) */
4611    
4612        / comment        / comment
4613    
4614        / command        / command
4615    
4616        / error        / error
4617    
4618     comment =     comment =
4619    
4620        '#'        '#'
4621    
4622        / comment '#'        / comment '#'
4623    
4624        / comment SP        / comment SP
4625    
4626        / comment number        / comment number
4627    
4628        / comment string        / comment string
4629    
4630     command =     command =
4631        ADD SP CHANNEL  
4632          ADD SP add_instruction
4633    
4634          / MAP SP map_instruction
4635    
4636          / UNMAP SP unmap_instruction
4637    
4638        / GET SP get_instruction        / GET SP get_instruction
4639    
4640        / CREATE SP create_instruction        / CREATE SP create_instruction
4641    
4642        / DESTROY SP destroy_instruction        / DESTROY SP destroy_instruction
4643    
4644    
4645    
4646    
4647    Schoenebeck               Expires July 2, 2007                 [Page 83]
4648    
4649    Internet-Draft        LinuxSampler Control Protocol        December 2006
4650    
4651    
4652        / LIST SP list_instruction        / LIST SP list_instruction
4653    
4654        / LOAD SP load_instruction        / LOAD SP load_instruction
4655        / REMOVE SP CHANNEL SP sampler_channel  
4656          / REMOVE SP remove_instruction
4657    
4658        / SET SP set_instruction        / SET SP set_instruction
4659    
4660        / SUBSCRIBE SP subscribe_event        / SUBSCRIBE SP subscribe_event
4661    
4662        / UNSUBSCRIBE SP unsubscribe_event        / UNSUBSCRIBE SP unsubscribe_event
4663    
4664        / SELECT SP text        / SELECT SP text
4665        / RESET SP CHANNEL SP sampler_channel  
4666          / RESET SP reset_instruction
4667    
4668          / CLEAR SP clear_instruction
4669    
4670        / RESET        / RESET
4671    
4672        / QUIT        / QUIT
4673    
4674       add_instruction =
4675    
4676          CHANNEL
4677    
4678          / MIDI_INSTRUMENT_MAP
4679    
4680          / MIDI_INSTRUMENT_MAP SP map_name
4681    
4682     subscribe_event =     subscribe_event =
4683        CHANNEL_COUNT  
4684          AUDIO_OUTPUT_DEVICE_COUNT
4685    
4686          / AUDIO_OUTPUT_DEVICE_INFO
4687    
4688          / MIDI_INPUT_DEVICE_COUNT
4689    
4690          / MIDI_INPUT_DEVICE_INFO
4691    
4692          / CHANNEL_COUNT
4693    
4694        / VOICE_COUNT        / VOICE_COUNT
4695    
4696        / STREAM_COUNT        / STREAM_COUNT
4697    
4698        / BUFFER_FILL        / BUFFER_FILL
4699    
4700    
4701    
4702    
4703    Schoenebeck               Expires July 2, 2007                 [Page 84]
4704    
4705    Internet-Draft        LinuxSampler Control Protocol        December 2006
4706    
4707    
4708        / CHANNEL_INFO        / CHANNEL_INFO
4709    
4710          / MIDI_INSTRUMENT_MAP_COUNT
4711    
4712          / MIDI_INSTRUMENT_MAP_INFO
4713    
4714          / MIDI_INSTRUMENT_COUNT
4715    
4716          / MIDI_INSTRUMENT_INFO
4717    
4718        / MISCELLANEOUS        / MISCELLANEOUS
4719    
4720          / TOTAL_VOICE_COUNT
4721    
4722     unsubscribe_event =     unsubscribe_event =
4723    
4724          AUDIO_OUTPUT_DEVICE_COUNT
4725    
4726          / AUDIO_OUTPUT_DEVICE_INFO
4727    
4728  Schoenebeck            Expires November 22, 2005               [Page 53]        / MIDI_INPUT_DEVICE_COUNT
4729    
4730  Internet-Draft       LinuxSampler Control Protocol              May 2005        / MIDI_INPUT_DEVICE_INFO
4731    
4732          / CHANNEL_COUNT
4733    
       CHANNEL_COUNT  
4734        / VOICE_COUNT        / VOICE_COUNT
4735    
4736        / STREAM_COUNT        / STREAM_COUNT
4737    
4738        / BUFFER_FILL        / BUFFER_FILL
4739    
4740        / CHANNEL_INFO        / CHANNEL_INFO
4741    
4742          / MIDI_INSTRUMENT_MAP_COUNT
4743    
4744          / MIDI_INSTRUMENT_MAP_INFO
4745    
4746          / MIDI_INSTRUMENT_COUNT
4747    
4748          / MIDI_INSTRUMENT_INFO
4749    
4750        / MISCELLANEOUS        / MISCELLANEOUS
4751    
4752          / TOTAL_VOICE_COUNT
4753    
4754       map_instruction =
4755    
4756    
4757    
4758    
4759    Schoenebeck               Expires July 2, 2007                 [Page 85]
4760    
4761    Internet-Draft        LinuxSampler Control Protocol        December 2006
4762    
4763    
4764          MIDI_INSTRUMENT SP midi_map SP midi_bank SP midi_prog SP
4765          engine_name SP filename SP instrument_index SP volume_value
4766    
4767          / MIDI_INSTRUMENT SP midi_map SP midi_bank SP midi_prog SP
4768          engine_name SP filename SP instrument_index SP volume_value SP
4769          instr_load_mode
4770    
4771          / MIDI_INSTRUMENT SP midi_map SP midi_bank SP midi_prog SP
4772          engine_name SP filename SP instrument_index SP volume_value SP
4773          entry_name
4774    
4775          / MIDI_INSTRUMENT SP midi_map SP midi_bank SP midi_prog SP
4776          engine_name SP filename SP instrument_index SP volume_value SP
4777          instr_load_mode SP entry_name
4778    
4779       unmap_instruction =
4780    
4781          MIDI_INSTRUMENT SP midi_map SP midi_bank SP midi_prog
4782    
4783       remove_instruction =
4784    
4785          CHANNEL SP sampler_channel
4786    
4787          / MIDI_INSTRUMENT_MAP SP midi_map
4788    
4789          / MIDI_INSTRUMENT_MAP SP ALL
4790    
4791     get_instruction =     get_instruction =
4792    
4793        AVAILABLE_ENGINES        AVAILABLE_ENGINES
4794    
4795        / AVAILABLE_MIDI_INPUT_DRIVERS        / AVAILABLE_MIDI_INPUT_DRIVERS
4796    
4797        / MIDI_INPUT_DRIVER SP INFO SP string        / MIDI_INPUT_DRIVER SP INFO SP string
4798    
4799        / MIDI_INPUT_DRIVER_PARAMETER SP INFO SP string SP string        / MIDI_INPUT_DRIVER_PARAMETER SP INFO SP string SP string
4800    
4801        / MIDI_INPUT_DRIVER_PARAMETER SP INFO SP string SP string SP        / MIDI_INPUT_DRIVER_PARAMETER SP INFO SP string SP string SP
4802        key_val_list        key_val_list
4803    
4804        / AVAILABLE_AUDIO_OUTPUT_DRIVERS        / AVAILABLE_AUDIO_OUTPUT_DRIVERS
4805    
4806        / AUDIO_OUTPUT_DRIVER SP INFO SP string        / AUDIO_OUTPUT_DRIVER SP INFO SP string
4807    
4808        / AUDIO_OUTPUT_DRIVER_PARAMETER SP INFO SP string SP string        / AUDIO_OUTPUT_DRIVER_PARAMETER SP INFO SP string SP string
4809    
4810        / AUDIO_OUTPUT_DRIVER_PARAMETER SP INFO SP string SP string SP        / AUDIO_OUTPUT_DRIVER_PARAMETER SP INFO SP string SP string SP
4811        key_val_list        key_val_list
4812    
4813    
4814    
4815    Schoenebeck               Expires July 2, 2007                 [Page 86]
4816    
4817    Internet-Draft        LinuxSampler Control Protocol        December 2006
4818    
4819    
4820        / AUDIO_OUTPUT_DEVICES        / AUDIO_OUTPUT_DEVICES
4821    
4822        / MIDI_INPUT_DEVICES        / MIDI_INPUT_DEVICES
4823    
4824        / AUDIO_OUTPUT_DEVICE SP INFO SP number        / AUDIO_OUTPUT_DEVICE SP INFO SP number
4825    
4826        / MIDI_INPUT_DEVICE SP INFO SP number        / MIDI_INPUT_DEVICE SP INFO SP number
4827    
4828        / MIDI_INPUT_PORT SP INFO SP number SP number        / MIDI_INPUT_PORT SP INFO SP number SP number
4829    
4830        / MIDI_INPUT_PORT_PARAMETER SP INFO SP number SP number SP string        / MIDI_INPUT_PORT_PARAMETER SP INFO SP number SP number SP string
4831    
4832        / AUDIO_OUTPUT_CHANNEL SP INFO SP number SP number        / AUDIO_OUTPUT_CHANNEL SP INFO SP number SP number
4833    
4834        / AUDIO_OUTPUT_CHANNEL_PARAMETER SP INFO SP number SP number SP        / AUDIO_OUTPUT_CHANNEL_PARAMETER SP INFO SP number SP number SP
4835        string        string
4836    
4837        / CHANNELS        / CHANNELS
4838    
4839        / CHANNEL SP INFO SP sampler_channel        / CHANNEL SP INFO SP sampler_channel
4840    
4841        / CHANNEL SP BUFFER_FILL SP buffer_size_type SP sampler_channel        / CHANNEL SP BUFFER_FILL SP buffer_size_type SP sampler_channel
4842    
4843        / CHANNEL SP STREAM_COUNT SP sampler_channel        / CHANNEL SP STREAM_COUNT SP sampler_channel
4844    
4845        / CHANNEL SP VOICE_COUNT SP sampler_channel        / CHANNEL SP VOICE_COUNT SP sampler_channel
4846    
4847        / ENGINE SP INFO SP engine_name        / ENGINE SP INFO SP engine_name
4848    
4849        / SERVER SP INFO        / SERVER SP INFO
4850    
4851          / TOTAL_VOICE_COUNT
4852    
4853          / TOTAL_VOICE_COUNT_MAX
4854    
4855          / MIDI_INSTRUMENTS SP midi_map
4856    
4857          / MIDI_INSTRUMENTS SP ALL
4858    
4859          / MIDI_INSTRUMENT SP INFO SP midi_map SP midi_bank SP midi_prog
4860    
4861          / MIDI_INSTRUMENT_MAPS
4862    
4863          / MIDI_INSTRUMENT_MAP SP INFO SP midi_map
4864    
4865          / FX_SENDS SP sampler_channel
4866    
4867    
4868    
4869    
4870    
4871    Schoenebeck               Expires July 2, 2007                 [Page 87]
4872    
4873    Internet-Draft        LinuxSampler Control Protocol        December 2006
4874    
4875    
4876          / FX_SEND SP INFO SP sampler_channel SP fx_send_id
4877    
4878          / VOLUME
4879    
4880     set_instruction =     set_instruction =
4881    
4882        AUDIO_OUTPUT_DEVICE_PARAMETER SP number SP string '='        AUDIO_OUTPUT_DEVICE_PARAMETER SP number SP string '='
4883        param_val_list        param_val_list
4884    
4885        / AUDIO_OUTPUT_CHANNEL_PARAMETER SP number SP number SP string '='        / AUDIO_OUTPUT_CHANNEL_PARAMETER SP number SP number SP string '='
4886        param_val_list        param_val_list
4887    
4888        / MIDI_INPUT_DEVICE_PARAMETER SP number SP string '='        / MIDI_INPUT_DEVICE_PARAMETER SP number SP string '='
4889        param_val_list        param_val_list
4890    
4891        / MIDI_INPUT_PORT_PARAMETER SP number SP number SP string '='        / MIDI_INPUT_PORT_PARAMETER SP number SP number SP string '='
4892        param_val_list        param_val_list
       / CHANNEL SP set_chan_instruction  
       / ECHO SP boolean  
4893    
4894          / CHANNEL SP set_chan_instruction
4895    
4896          / MIDI_INSTRUMENT_MAP SP NAME SP midi_map SP map_name
4897    
4898          / FX_SEND SP AUDIO_OUTPUT_CHANNEL SP sampler_channel SP fx_send_id
4899          SP audio_channel_index SP audio_channel_index
4900    
4901  Schoenebeck            Expires November 22, 2005               [Page 54]        / ECHO SP boolean
   
 Internet-Draft       LinuxSampler Control Protocol              May 2005  
4902    
4903          / VOLUME SP volume_value
4904    
4905     create_instruction =     create_instruction =
4906    
4907        AUDIO_OUTPUT_DEVICE SP string SP key_val_list        AUDIO_OUTPUT_DEVICE SP string SP key_val_list
4908    
4909        / AUDIO_OUTPUT_DEVICE SP string        / AUDIO_OUTPUT_DEVICE SP string
4910    
4911        / MIDI_INPUT_DEVICE SP string SP key_val_list        / MIDI_INPUT_DEVICE SP string SP key_val_list
4912    
4913        / MIDI_INPUT_DEVICE SP string        / MIDI_INPUT_DEVICE SP string
4914    
4915          / FX_SEND SP sampler_channel SP midi_ctrl
4916    
4917          / FX_SEND SP sampler_channel SP midi_ctrl SP fx_send_name
4918    
4919       reset_instruction =
4920    
4921          CHANNEL SP sampler_channel
4922    
4923       clear_instruction =
4924    
4925    
4926    
4927    Schoenebeck               Expires July 2, 2007                 [Page 88]
4928    
4929    Internet-Draft        LinuxSampler Control Protocol        December 2006
4930    
4931    
4932          MIDI_INSTRUMENTS SP midi_map
4933    
4934          / MIDI_INSTRUMENTS SP ALL
4935    
4936     destroy_instruction =     destroy_instruction =
4937    
4938        AUDIO_OUTPUT_DEVICE SP number        AUDIO_OUTPUT_DEVICE SP number
4939    
4940        / MIDI_INPUT_DEVICE SP number        / MIDI_INPUT_DEVICE SP number
4941    
4942          / FX_SEND SP sampler_channel SP fx_send_id
4943    
4944     load_instruction =     load_instruction =
4945    
4946        INSTRUMENT SP load_instr_args        INSTRUMENT SP load_instr_args
4947    
4948        / ENGINE SP load_engine_args        / ENGINE SP load_engine_args
4949    
4950     set_chan_instruction =     set_chan_instruction =
4951    
4952        AUDIO_OUTPUT_DEVICE SP sampler_channel SP device_index        AUDIO_OUTPUT_DEVICE SP sampler_channel SP device_index
4953    
4954        / AUDIO_OUTPUT_CHANNEL SP sampler_channel SP audio_channel_index        / AUDIO_OUTPUT_CHANNEL SP sampler_channel SP audio_channel_index
4955        SP audio_channel_index        SP audio_channel_index
4956    
4957        / AUDIO_OUTPUT_TYPE SP sampler_channel SP audio_output_type_name        / AUDIO_OUTPUT_TYPE SP sampler_channel SP audio_output_type_name
4958    
4959        / MIDI_INPUT SP sampler_channel SP device_index SP        / MIDI_INPUT SP sampler_channel SP device_index SP
4960        midi_input_port_index SP midi_input_channel_index        midi_input_port_index SP midi_input_channel_index
4961    
4962        / MIDI_INPUT_DEVICE SP sampler_channel SP device_index        / MIDI_INPUT_DEVICE SP sampler_channel SP device_index
4963    
4964        / MIDI_INPUT_PORT SP sampler_channel SP midi_input_port_index        / MIDI_INPUT_PORT SP sampler_channel SP midi_input_port_index
4965    
4966        / MIDI_INPUT_CHANNEL SP sampler_channel SP        / MIDI_INPUT_CHANNEL SP sampler_channel SP
4967        midi_input_channel_index        midi_input_channel_index
4968    
4969        / MIDI_INPUT_TYPE SP sampler_channel SP midi_input_type_name        / MIDI_INPUT_TYPE SP sampler_channel SP midi_input_type_name
4970    
4971        / VOLUME SP sampler_channel SP volume_value        / VOLUME SP sampler_channel SP volume_value
4972    
4973          / MUTE SP sampler_channel SP boolean
4974    
4975          / SOLO SP sampler_channel SP boolean
4976    
4977          / MIDI_INSTRUMENT_MAP SP sampler_channel SP midi_map
4978    
4979    
4980    
4981    
4982    
4983    Schoenebeck               Expires July 2, 2007                 [Page 89]
4984    
4985    Internet-Draft        LinuxSampler Control Protocol        December 2006
4986    
4987    
4988          / MIDI_INSTRUMENT_MAP SP sampler_channel SP NONE
4989    
4990          / MIDI_INSTRUMENT_MAP SP sampler_channel SP DEFAULT
4991    
4992     key_val_list =     key_val_list =
4993    
4994        string '=' param_val_list        string '=' param_val_list
4995    
4996        / key_val_list SP string '=' param_val_list        / key_val_list SP string '=' param_val_list
4997    
4998     buffer_size_type =     buffer_size_type =
4999    
5000        BYTES        BYTES
5001    
5002        / PERCENTAGE        / PERCENTAGE
5003    
5004     list_instruction =     list_instruction =
5005    
5006        AUDIO_OUTPUT_DEVICES        AUDIO_OUTPUT_DEVICES
5007    
5008        / MIDI_INPUT_DEVICES        / MIDI_INPUT_DEVICES
5009    
5010        / CHANNELS        / CHANNELS
5011    
5012        / AVAILABLE_ENGINES        / AVAILABLE_ENGINES
5013    
5014        / AVAILABLE_MIDI_INPUT_DRIVERS        / AVAILABLE_MIDI_INPUT_DRIVERS
5015    
5016        / AVAILABLE_AUDIO_OUTPUT_DRIVERS        / AVAILABLE_AUDIO_OUTPUT_DRIVERS
5017    
5018          / MIDI_INSTRUMENTS SP midi_map
5019    
5020          / MIDI_INSTRUMENTS SP ALL
5021    
5022          / MIDI_INSTRUMENT_MAPS
5023    
5024          / FX_SENDS SP sampler_channel
5025    
5026     load_instr_args =     load_instr_args =
5027    
5028        filename SP instrument_index SP sampler_channel        filename SP instrument_index SP sampler_channel
5029    
5030        / NON_MODAL SP filename SP instrument_index SP sampler_channel        / NON_MODAL SP filename SP instrument_index SP sampler_channel
5031    
5032       load_engine_args =
5033    
5034          engine_name SP sampler_channel
5035    
5036    
5037    
5038  Schoenebeck            Expires November 22, 2005               [Page 55]  
5039    Schoenebeck               Expires July 2, 2007                 [Page 90]
5040    
5041  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
5042    
5043    
5044     load_engine_args =     instr_load_mode =
5045        engine_name SP sampler_channel  
5046          ON_DEMAND
5047    
5048          / ON_DEMAND_HOLD
5049    
5050          / PERSISTENT
5051    
5052     device_index =     device_index =
5053    
5054        number        number
5055    
5056     audio_channel_index =     audio_channel_index =
5057    
5058        number        number
5059    
5060     audio_output_type_name =     audio_output_type_name =
5061    
5062        string        string
5063    
5064     midi_input_port_index =     midi_input_port_index =
5065    
5066        number        number
5067    
5068     midi_input_channel_index =     midi_input_channel_index =
5069    
5070        number        number
5071    
5072        / ALL        / ALL
5073    
5074     midi_input_type_name =     midi_input_type_name =
5075    
5076        string        string
5077    
5078       midi_map =
5079    
5080          number
5081    
5082       midi_bank =
5083    
5084          number
5085    
5086       midi_prog =
5087    
5088          number
5089    
5090       midi_ctrl =
5091    
5092    
5093    
5094    
5095    Schoenebeck               Expires July 2, 2007                 [Page 91]
5096    
5097    Internet-Draft        LinuxSampler Control Protocol        December 2006
5098    
5099    
5100          number
5101    
5102     volume_value =     volume_value =
5103    
5104        dotnum        dotnum
5105    
5106        / number        / number
5107    
5108     sampler_channel =     sampler_channel =
5109    
5110        number        number
5111    
5112     instrument_index =     instrument_index =
5113    
5114          number
5115    
5116       fx_send_id =
5117    
5118        number        number
5119    
5120     engine_name =     engine_name =
5121    
5122        string        string
5123    
5124     filename =     filename =
5125    
5126          stringval
5127    
5128       map_name =
5129    
5130          stringval
5131    
5132       entry_name =
5133    
5134          stringval
5135    
5136       fx_send_name =
5137    
5138        stringval        stringval
5139    
5140     param_val_list =     param_val_list =
5141    
5142        param_val        param_val
5143    
5144        / param_val_list','param_val        / param_val_list','param_val
5145    
5146     param_val =     param_val =
       string  
       / '\'' string '\''  
       / '\"' string '\"'  
       / number  
5147    
5148    
5149    
5150    
5151  Schoenebeck            Expires November 22, 2005               [Page 56]  Schoenebeck               Expires July 2, 2007                 [Page 92]
5152    
5153  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
5154    
5155    
5156          string
5157    
5158          / stringval
5159    
5160          / number
5161    
5162        / dotnum        / dotnum
5163    
# Line 3182  Internet-Draft       LinuxSampler Contro Line 5204  Internet-Draft       LinuxSampler Contro
5204    
5205    
5206    
5207    Schoenebeck               Expires July 2, 2007                 [Page 93]
5208    
5209    Internet-Draft        LinuxSampler Control Protocol        December 2006
5210    
5211    
5212    8.  Events
5213    
5214       This chapter will describe all currently defined events supported by
5215       LinuxSampler.
5216    
5217    8.1.  Number of audio output devices changed
5218    
5219       Client may want to be notified when the total number of audio output
5220       devices on the back-end changes by issuing the following command:
5221    
5222          SUBSCRIBE AUDIO_OUTPUT_DEVICE_COUNT
5223    
5224       Server will start sending the following notification messages:
5225    
5226          "NOTIFY:AUDIO_OUTPUT_DEVICE_COUNT:<devices>"
5227    
5228       where <devices> will be replaced by the new number of audio output
5229       devices.
5230    
5231    8.2.  Audio output device's settings changed
5232    
5233       Client may want to be notified when changes were made to audio output
5234       devices on the back-end by issuing the following command:
5235    
5236          SUBSCRIBE AUDIO_OUTPUT_DEVICE_INFO
5237    
5238       Server will start sending the following notification messages:
5239    
5240          "NOTIFY:AUDIO_OUTPUT_DEVICE_INFO:<device-id>"
5241    
5242       where <device-id> will be replaced by the numerical ID of the audio
5243       output device, which settings has been changed.  The front-end will
5244       have to send the respective command to actually get the audio output
5245       device info.  Because these messages will be triggered by LSCP
5246       commands issued by other clients rather than real time events
5247       happening on the server, it is believed that an empty notification
5248       message is sufficient here.
5249    
5250    8.3.  Number of MIDI input devices changed
5251    
5252       Client may want to be notified when the total number of MIDI input
5253       devices on the back-end changes by issuing the following command:
5254    
5255          SUBSCRIBE MIDI_INPUT_DEVICE_COUNT
5256    
5257       Server will start sending the following notification messages:
5258    
5259    
5260    
5261    
5262    
5263  Schoenebeck            Expires November 22, 2005               [Page 57]  Schoenebeck               Expires July 2, 2007                 [Page 94]
5264    
5265  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
5266    
5267    
5268  8.  Events        "NOTIFY:MIDI_INPUT_DEVICE_COUNT:<devices>"
5269    
5270     This chapter will describe all currently defined events supported by     where <devices> will be replaced by the new number of MIDI input
5271     LinuxSampler.     devices.
5272    
5273  8.1  Number of sampler channels changed  8.4.  MIDI input device's settings changed
5274    
5275       Client may want to be notified when changes were made to MIDI input
5276       devices on the back-end by issuing the following command:
5277    
5278          SUBSCRIBE MIDI_INPUT_DEVICE_INFO
5279    
5280       Server will start sending the following notification messages:
5281    
5282          "NOTIFY:MIDI_INPUT_DEVICE_INFO:<device-id>"
5283    
5284       where <device-id> will be replaced by the numerical ID of the MIDI
5285       input device, which settings has been changed.  The front-end will
5286       have to send the respective command to actually get the MIDI input
5287       device info.  Because these messages will be triggered by LSCP
5288       commands issued by other clients rather than real time events
5289       happening on the server, it is believed that an empty notification
5290       message is sufficient here.
5291    
5292    8.5.  Number of sampler channels changed
5293    
5294     Client may want to be notified when the total number of channels on     Client may want to be notified when the total number of channels on
5295     the back-end changes by issuing the following command:     the back-end changes by issuing the following command:
# Line 3212  Internet-Draft       LinuxSampler Contro Line 5303  Internet-Draft       LinuxSampler Contro
5303     where <channels> will be replaced by the new number of sampler     where <channels> will be replaced by the new number of sampler
5304     channels.     channels.
5305    
5306  8.2  Number of active voices changed  8.6.  Number of active voices changed
5307    
5308     Client may want to be notified when the number of voices on the     Client may want to be notified when the number of voices on the back-
5309     back-end changes by issuing the following command:     end changes by issuing the following command:
5310    
5311        SUBSCRIBE VOICE_COUNT        SUBSCRIBE VOICE_COUNT
5312    
5313     Server will start sending the following notification messages:     Server will start sending the following notification messages:
5314    
5315    
5316    
5317    
5318    
5319    Schoenebeck               Expires July 2, 2007                 [Page 95]
5320    
5321    Internet-Draft        LinuxSampler Control Protocol        December 2006
5322    
5323    
5324        "NOTIFY:VOICE_COUNT:<sampler-channel> <voices>        "NOTIFY:VOICE_COUNT:<sampler-channel> <voices>
5325    
5326     where <sampler-channel> will be replaced by the sampler channel the     where <sampler-channel> will be replaced by the sampler channel the
5327     voice count change occurred and <voices> by the new number of active     voice count change occurred and <voices> by the new number of active
5328     voices on that channel.     voices on that channel.
5329    
5330  8.3  Number of active disk streams changed  8.7.  Number of active disk streams changed
5331    
5332     Client may want to be notified when the number of streams on the     Client may want to be notified when the number of streams on the
5333     back-end changes by issuing the following command: SUBSCRIBE     back-end changes by issuing the following command: SUBSCRIBE
# Line 3241  Internet-Draft       LinuxSampler Contro Line 5341  Internet-Draft       LinuxSampler Contro
5341    
5342     where <sampler-channel> will be replaced by the sampler channel the     where <sampler-channel> will be replaced by the sampler channel the
5343     stream count change occurred and <streams> by the new number of     stream count change occurred and <streams> by the new number of
   
   
   
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 Internet-Draft       LinuxSampler Control Protocol              May 2005  
   
   
5344     active disk streams on that channel.     active disk streams on that channel.
5345    
5346  8.4  Disk stream buffer fill state changed  8.8.  Disk stream buffer fill state changed
5347    
5348     Client may want to be notified when the buffer fill state of a disk     Client may want to be notified when the buffer fill state of a disk
5349     stream on the back-end changes by issuing the following command:     stream on the back-end changes by issuing the following command:
# Line 3264  Internet-Draft       LinuxSampler Contro Line 5356  Internet-Draft       LinuxSampler Contro
5356    
5357     where <sampler-channel> will be replaced by the sampler channel the     where <sampler-channel> will be replaced by the sampler channel the
5358     buffer fill state change occurred on and <fill-data> will be replaced     buffer fill state change occurred on and <fill-data> will be replaced
5359     by the buffer fill data for this channel as described in Section     by the buffer fill data for this channel as described in
5360     6.4.13 as if the "GET CHANNEL BUFFER_FILL PERCENTAGE" (Section     Section 6.4.13 as if the "GET CHANNEL BUFFER_FILL PERCENTAGE"
5361     6.4.13) command was issued on this channel.     (Section 6.4.13) command was issued on this channel.
5362    
5363  8.5  Channel information changed  8.9.  Channel information changed
5364    
5365     Client may want to be notified when changes were made to sampler     Client may want to be notified when changes were made to sampler
5366     channels on the back-end by issuing the following command:     channels on the back-end by issuing the following command:
# Line 3277  Internet-Draft       LinuxSampler Contro Line 5369  Internet-Draft       LinuxSampler Contro
5369    
5370     Server will start sending the following notification messages:     Server will start sending the following notification messages:
5371    
5372    
5373    
5374    
5375    Schoenebeck               Expires July 2, 2007                 [Page 96]
5376    
5377    Internet-Draft        LinuxSampler Control Protocol        December 2006
5378    
5379    
5380        "NOTIFY:CHANNEL_INFO:<sampler-channel>"        "NOTIFY:CHANNEL_INFO:<sampler-channel>"
5381    
5382     where <sampler-channel> will be replaced by the sampler channel the     where <sampler-channel> will be replaced by the sampler channel the
# Line 3286  Internet-Draft       LinuxSampler Contro Line 5386  Internet-Draft       LinuxSampler Contro
5386     rather than real time events happening on the server, it is believed     rather than real time events happening on the server, it is believed
5387     that an empty notification message is sufficient here.     that an empty notification message is sufficient here.
5388    
5389  8.6  Miscellaneous and debugging events  8.10.  Total number of active voices changed
5390    
5391     Client may want to be notified of miscellaneous and debugging events     Client may want to be notified when the total number of voices on the
5392     occurring at the server by issuing the following command:     back-end changes by issuing the following command:
5393    
5394        SUBSCRIBE MISCELLANEOUS        SUBSCRIBE TOTAL_VOICE_COUNT
5395    
5396     Server will start sending the following notification messages:     Server will start sending the following notification messages:
5397    
5398        "NOTIFY:MISCELLANEOUS:<string>"        "NOTIFY:TOTAL_VOICE_COUNT:<voices>
5399    
5400       where <voices> will be replaced by the new number of all currently
5401       active voices.
5402    
5403    8.11.  Number of MIDI instrument maps changed
5404    
5405       Client may want to be notified when the number of MIDI instrument
5406       maps on the back-end changes by issuing the following command:
5407    
5408          SUBSCRIBE MIDI_INSTRUMENT_MAP_COUNT
5409    
5410       Server will start sending the following notification messages:
5411    
5412          "NOTIFY:MIDI_INSTRUMENT_MAP_COUNT:<maps>"
5413    
5414       where <maps> will be replaced by the new number of MIDI instrument
5415       maps.
5416    
5417    8.12.  MIDI instrument map information changed
5418    
5419       Client may want to be notified when changes were made to MIDI
5420       instrument maps on the back-end by issuing the following command:
5421    
5422          SUBSCRIBE MIDI_INSTRUMENT_MAP_INFO
5423    
5424  Schoenebeck            Expires November 22, 2005               [Page 59]     Server will start sending the following notification messages:
5425    
5426    
5427    
5428    
5429    
5430    
5431    Schoenebeck               Expires July 2, 2007                 [Page 97]
5432    
5433  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
5434    
5435    
5436     where <string> will be replaced by whatever data server wants to send        "NOTIFY:MIDI_INSTRUMENT_MAP_INFO:<map-id>"
5437     to the client.  Client MAY display this data to the user AS IS to  
5438     facilitate debugging.     where <map-id> will be replaced by the numerical ID of the MIDI
5439       instrument map, for which information changes occurred.  The front-
5440       end will have to send the respective command to actually get the MIDI
5441       instrument map info.  Because these messages will be triggered by
5442       LSCP commands issued by other clients rather than real time events
5443       happening on the server, it is believed that an empty notification
5444       message is sufficient here.
5445    
5446    8.13.  Number of MIDI instruments changed
5447    
5448       Client may want to be notified when the number of MIDI instrument
5449       maps on the back-end changes by issuing the following command:
5450    
5451          SUBSCRIBE MIDI_INSTRUMENT_COUNT
5452    
5453       Server will start sending the following notification messages:
5454    
5455          "NOTIFY:MIDI_INSTRUMENT_COUNT:<map-id> <instruments>"
5456    
5457       where <map-id> is the numerical ID of the MIDI instrument map, in
5458       which the nuber of instruments has changed and <instruments> will be
5459       replaced by the new number of MIDI instruments in the specified map.
5460    
5461    8.14.  MIDI instrument information changed
5462    
5463       Client may want to be notified when changes were made to MIDI
5464       instruments on the back-end by issuing the following command:
5465    
5466          SUBSCRIBE MIDI_INSTRUMENT_INFO
5467    
5468       Server will start sending the following notification messages:
5469    
5470          "NOTIFY:MIDI_INSTRUMENT_INFO:<map-id> <bank> <program>"
5471    
5472       where <map-id> will be replaced by the numerical ID of the MIDI
5473       instrument map, in which a MIDI instrument is changed. <bank> and
5474       <program> specifies the location of the changed MIDI instrument in
5475       the map.  The front-end will have to send the respective command to
5476       actually get the MIDI instrument info.  Because these messages will
5477       be triggered by LSCP commands issued by other clients rather than
5478       real time events happening on the server, it is believed that an
5479       empty notification message is sufficient here.
5480    
5481    
5482    
# Line 3316  Internet-Draft       LinuxSampler Contro Line 5484  Internet-Draft       LinuxSampler Contro
5484    
5485    
5486    
5487    Schoenebeck               Expires July 2, 2007                 [Page 98]
5488    
5489    Internet-Draft        LinuxSampler Control Protocol        December 2006
5490    
5491    
5492    8.15.  Miscellaneous and debugging events
5493    
5494       Client may want to be notified of miscellaneous and debugging events
5495       occurring at the server by issuing the following command:
5496    
5497          SUBSCRIBE MISCELLANEOUS
5498    
5499       Server will start sending the following notification messages:
5500    
5501          "NOTIFY:MISCELLANEOUS:<string>"
5502    
5503       where <string> will be replaced by whatever data server wants to send
5504       to the client.  Client MAY display this data to the user AS IS to
5505       facilitate debugging.
5506    
5507    
5508    
# Line 3356  Internet-Draft       LinuxSampler Contro Line 5540  Internet-Draft       LinuxSampler Contro
5540    
5541    
5542    
5543  Schoenebeck            Expires November 22, 2005               [Page 60]  Schoenebeck               Expires July 2, 2007                 [Page 99]
5544    
5545  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
5546    
5547    
5548  9.  Security Considerations  9.  Security Considerations
# Line 3412  Internet-Draft       LinuxSampler Contro Line 5596  Internet-Draft       LinuxSampler Contro
5596    
5597    
5598    
5599  Schoenebeck            Expires November 22, 2005               [Page 61]  Schoenebeck               Expires July 2, 2007                [Page 100]
5600    
5601  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
5602    
5603    
5604  10.  Acknowledgments  10.  Acknowledgments
# Line 3424  Internet-Draft       LinuxSampler Contro Line 5608  Internet-Draft       LinuxSampler Contro
5608     list:     list:
5609    
5610        Rui Nuno Capela        Rui Nuno Capela
5611    
5612        Vladimir Senkov        Vladimir Senkov
5613    
5614        Mark Knecht        Mark Knecht
5615    
5616        Grigor Iliev        Grigor Iliev
5617    
5618  11  References  
5619    
5620    
5621    
5622    
5623    
5624    
5625    
5626    
5627    
5628    
5629    
5630    
5631    
5632    
5633    
5634    
5635    
5636    
5637    
5638    
5639    
5640    
5641    
5642    
5643    
5644    
5645    
5646    
5647    
5648    
5649    
5650    
5651    
5652    
5653    
5654    
5655    Schoenebeck               Expires July 2, 2007                [Page 101]
5656    
5657    Internet-Draft        LinuxSampler Control Protocol        December 2006
5658    
5659    
5660    11.  References
5661    
5662     [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate     [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
5663                Requirement Levels", RFC 2119, 1997.                Requirement Levels", RFC 2119, 1997.
# Line 3440  Internet-Draft       LinuxSampler Contro Line 5669  Internet-Draft       LinuxSampler Contro
5669                CONTROL PROTOCOL", RFC 793, 1981.                CONTROL PROTOCOL", RFC 793, 1981.
5670    
5671    
 Author's Address  
5672    
    C. Schoenebeck  
    Interessengemeinschaft Software Engineering e. V.  
    Max-Planck-Str. 39  
    74081 Heilbronn  
    Germany  
5673    
    EMail: schoenebeck at software minus engineering dot org  
5674    
5675    
5676    
# Line 3468  Author's Address Line 5690  Author's Address
5690    
5691    
5692    
 Schoenebeck            Expires November 22, 2005               [Page 62]  
   
 Internet-Draft       LinuxSampler Control Protocol              May 2005  
5693    
5694    
 Intellectual Property Statement  
5695    
    The IETF takes no position regarding the validity or scope of any  
    intellectual property or other rights that might be claimed to  
    pertain to the implementation or use of the technology described in  
    this document or the extent to which any license under such rights  
    might or might not be available; neither does it represent that it  
    has made any effort to identify any such rights.  Information on the  
    IETF's procedures with respect to rights in standards-track and  
    standards-related documentation can be found in BCP-11.  Copies of  
    claims of rights made available for publication and any assurances of  
    licenses to be made available, or the result of an attempt made to  
    obtain a general license or permission for the use of such  
    proprietary rights by implementors or users of this specification can  
    be obtained from the IETF Secretariat.  
5696    
    The IETF invites any interested party to bring to its attention any  
    copyrights, patents or patent applications, or other proprietary  
    rights which may cover technology that may be required to practice  
    this standard.  Please address the information to the IETF Executive  
    Director.  
5697    
5698    
 Full Copyright Statement  
5699    
    Copyright (C) The Internet Society (2005).  All Rights Reserved.  
5700    
    This document and translations of it may be copied and furnished to  
    others, and derivative works that comment on or otherwise explain it  
    or assist in its implementation may be prepared, copied, published  
    and distributed, in whole or in part, without restriction of any  
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    document itself may not be modified in any way, such as by removing  
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    followed, or as required to translate it into languages other than  
    English.  
5701    
    The limited permissions granted above are perpetual and will not be  
    revoked by the Internet Society or its successors or assignees.  
5702    
    This document and the information contained herein is provided on an  
    "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING  
    TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING  
    BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION  
5703    
5704    
5705    
5706  Schoenebeck            Expires November 22, 2005               [Page 63]  
5707    
5708    
5709    
5710    
5711    Schoenebeck               Expires July 2, 2007                [Page 102]
5712    
5713  Internet-Draft       LinuxSampler Control Protocol              May 2005  Internet-Draft        LinuxSampler Control Protocol        December 2006
5714    
5715    
5716    Author's Address
5717    
5718       C. Schoenebeck
5719       Interessengemeinschaft Software Engineering e. V.
5720       Max-Planck-Str. 39
5721       74081 Heilbronn
5722       Germany
5723    
5724       Email: schoenebeck at software minus engineering dot org
5725    
    HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF  
    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
5726    
5727    
 Acknowledgment  
5728    
    Funding for the RFC Editor function is currently provided by the  
    Internet Society.  
5729    
5730    
5731    
# Line 3575  Acknowledgment Line 5764  Acknowledgment
5764    
5765    
5766    
5767    Schoenebeck               Expires July 2, 2007                [Page 103]
5768    
5769    Internet-Draft        LinuxSampler Control Protocol        December 2006
5770    
5771    
5772    Full Copyright Statement
5773    
5774       Copyright (C) The Internet Society (2006).
5775    
5776       This document is subject to the rights, licenses and restrictions
5777       contained in BCP 78, and except as set forth therein, the authors
5778       retain all their rights.
5779    
5780       This document and the information contained herein are provided on an
5781       "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
5782       OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
5783       ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
5784       INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
5785       INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
5786       WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
5787    
5788    
5789    Intellectual Property
5790    
5791       The IETF takes no position regarding the validity or scope of any
5792       Intellectual Property Rights or other rights that might be claimed to
5793       pertain to the implementation or use of the technology described in
5794       this document or the extent to which any license under such rights
5795       might or might not be available; nor does it represent that it has
5796       made any independent effort to identify any such rights.  Information
5797       on the procedures with respect to rights in RFC documents can be
5798       found in BCP 78 and BCP 79.
5799    
5800       Copies of IPR disclosures made to the IETF Secretariat and any
5801       assurances of licenses to be made available, or the result of an
5802       attempt made to obtain a general license or permission for the use of
5803       such proprietary rights by implementers or users of this
5804       specification can be obtained from the IETF on-line IPR repository at
5805       http://www.ietf.org/ipr.
5806    
5807       The IETF invites any interested party to bring to its attention any
5808       copyrights, patents or patent applications, or other proprietary
5809       rights that may cover technology that may be required to implement
5810       this standard.  Please address the information to the IETF at
5811       ietf-ipr@ietf.org.
5812    
5813    
5814    Acknowledgment
5815    
5816       Funding for the RFC Editor function is provided by the IETF
5817       Administrative Support Activity (IASA).
5818    
5819    
5820    
5821    
5822    
5823  Schoenebeck            Expires November 22, 2005               [Page 64]  Schoenebeck               Expires July 2, 2007                [Page 104]
5824    
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