--- linuxsampler/trunk/Documentation/lscp.xml 2005/04/06 19:24:39 494 +++ linuxsampler/trunk/Documentation/lscp.xml 2007/09/30 21:33:26 1362 @@ -11,11 +11,14 @@ - - + + + + - LinuxSampler Control Protocol + LinuxSampler Control Protocol (draft) @@ -31,16 +34,16 @@ schoenebeck at software minus engineering dot org - + LinuxSampler Developers LSCP The LinuxSampler Control Protocol (LSCP) is an application-level protocol primarily intended for local and - remote controlling the LinuxSampler main application, which is a - sophisticated console application essentially playing back audio - samples and manipulating the samples in real time to certain - extent. + 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. @@ -58,8 +61,8 @@ (front-end) and server (LinuxSampler) respectively. Lines in examples must be interpreted as every line being CRLF terminated (carriage return character followed by line feed - character as defined in the ASCII standard), thus the following - example: + character as defined in the ASCII standard ), + thus the following example: @@ -112,6 +115,43 @@ return and line feed characters respectively. +
+ LSCP will certainly be extended and enhanced by-and-by. Each official + release of the LSCP specification will be tagged with a unique version + tuple. The version tuple consists at least of a major and minor version + number like: + + + + "1.2" + + + + In this example the major version number would be "1" and the minor + version number would be "2". Note that the version tuple might also + have more than two elements. The major version number defines a + group of backward compatible versions. That means a frontend is + compatible to the connected sampler if and only if the LSCP versions + to which each of the two parties complies to, match both of the + following rules: + + Compatibility: + + + The frontend's LSCP major version and the sampler's LSCP + major version are exactly equal. + The frontend's LSCP minor version is less or equal than + the sampler's LSCP minor version. + + + + Compatibility can only be claimed if both rules are true. + The frontend can use the + "GET SERVER INFO" command to + get the version of the LSCP specification the sampler complies with. + +
+
LinuxSampler is a so called software sampler application capable to playback audio samples from a computer's Random @@ -124,7 +164,7 @@ arbitrary MIDI input method and arbitrary MIDI channel (e.g. sampler channel 17 could be connected to an ALSA sequencer device 64:0 and listening to MIDI channel 1 there). Each sampler - engine will be assigned an own instance of one of the available + channel will be associated with an instance of one of the available sampler engines (e.g. GigEngine, DLSEngine). The audio output of each sampler channel can be routed to an arbitrary audio output method (ALSA / JACK) and an arbitrary audio output channel @@ -154,7 +194,8 @@ methods will be described next.
- This simple communication method is based on TCP. The + This simple communication method is based on + TCP. The front-end application establishes a TCP connection to the LinuxSampler instance on a certain host system. Then the front-end application will send certain ASCII based commands @@ -234,7 +275,7 @@ C: "GET AUDIO_OUTPUT_DEVICE INFO 123456" S: "ERR:9:There is no audio output device with index 123456." - + Normal result sets could be: @@ -379,7 +420,7 @@ where <event-id> will be replace by the respective event that client is no longer interested in receiving. For - a list of supported events see chapter 6. + a list of supported events see . Example: the fill states of disk stream buffers have changed on sampler channel 4 and the LinuxSampler instance @@ -425,10 +466,11 @@
-
+
This chapter will describe the available control commands that can be sent on the TCP connection in detail. Some certain - commands (e.g. "GET CHANNEL INFO" or "GET ENGINE INFO") lead to + commands (e.g. "GET CHANNEL INFO" + or "GET ENGINE INFO") lead to multiple-line responses. In this case LinuxSampler signals the end of the response by a "." (single dot) line. @@ -472,13 +514,38 @@ what parameters drivers are offering, how to retrieve their possible values, etc. -
+
+ Use the following command to get the number of + audio output drivers currently available for the + LinuxSampler instance: + + + GET AVAILABLE_AUDIO_OUTPUT_DRIVERS + + + Possible Answers: + + + LinuxSampler will answer by sending the + number of audio output drivers. + + + Example: + + + C: "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS" + S: "2" + + +
+ +
Use the following command to list all audio output drivers currently available for the LinuxSampler instance: - GET AVAILABLE_AUDIO_OUTPUT_DRIVERS + LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS Possible Answers: @@ -492,14 +559,14 @@ Example: - C: "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS" + C: "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" S: "ALSA,JACK"
+ output driver" anchor="GET AUDIO_OUTPUT_DRIVER INFO"> Use the following command to get detailed information about a specific audio output driver: @@ -509,8 +576,8 @@ Where <audio-output-driver> is the name of the - audio output driver, returned by the "GET - AVAILABLE_AUDIO_OUTPUT_DRIVERS" command. + audio output driver, returned by the + "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" command. Possible Answers: @@ -572,7 +639,7 @@
+ output driver parameter" anchor="GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO"> Use the following command to get detailed information about a specific audio output driver parameter: @@ -581,9 +648,11 @@ Where <audio> is the name of the audio output - driver as returned by the "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS" command, + driver as returned by the + "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" command, <prm> a specific parameter name for which information should be - obtained (as returned by the "GET AUDIO_OUTPUT_DRIVER INFO" command) and + obtained (as returned by the + "GET AUDIO_OUTPUT_DRIVER INFO" command) and <deplist> is an optional list of parameters on which the sought parameter <prm> depends on, <deplist> is a list of key-value pairs in form of "key1=val1 key2=val2 ...", where character string values @@ -630,8 +699,8 @@ either true or false, defines if this parameter must be given when the device is to be created with the - 'CREATE AUDIO_OUTPUT_DEVICE' command - (always returned, no matter which driver parameter) + 'CREATE AUDIO_OUTPUT_DEVICE' + command (always returned, no matter which driver parameter) @@ -639,8 +708,8 @@ either true or false, if false then this parameter can be changed at any time, once the device is created by - the 'CREATE AUDIO_OUTPUT_DEVICE' command - (always returned, no matter which driver parameter) + the 'CREATE AUDIO_OUTPUT_DEVICE' + command (always returned, no matter which driver parameter) @@ -655,7 +724,7 @@ DEPENDS - - comma separated list of paramters this parameter depends + comma separated list of parameters this parameter depends on, means the values for fields 'DEFAULT', 'RANGE_MIN', 'RANGE_MAX' and 'POSSIBILITIES' might depend on these listed parameters, for example assuming that an audio @@ -672,7 +741,8 @@ reflects the default value for this parameter which is used when the device is created and not explicitly - given with the 'CREATE AUDIO_OUTPUT_DEVICE' command, + given with the + 'CREATE AUDIO_OUTPUT_DEVICE' command, in case of MULTIPLCITY=true, this is a comma separated list, that's why character strings are encapsulated into apostrophes (') @@ -757,7 +827,7 @@
-
+
Use the following command to create a new audio output device for the desired audio output system: @@ -767,7 +837,9 @@ Where <audio-output-driver> should be replaced by the desired audio - output system and <param-list> by an optional list of driver + output system as returned by the + "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" + command and <param-list> by an optional list of driver specific parameters in form of "key1=val1 key2=val2 ...", where character string values should be encapsulated into apostrophes ('). Note that there might be drivers which require parameter(s) to be @@ -815,7 +887,7 @@
-
+
Use the following command to destroy a created output device: @@ -823,8 +895,10 @@ Where <device-id> should be replaced by the numerical ID of the - audio output device as given by the "CREATE AUDIO_OUTPUT_DEVICE" or - "GET AUDIO_OUTPUT_DEVICES" command. + audio output device as given by the + "CREATE AUDIO_OUTPUT_DEVICE" + or "LIST AUDIO_OUTPUT_DEVICES" + command. Possible Answers: @@ -859,7 +933,7 @@
-
+
Use the following command to count all created audio output devices: @@ -882,7 +956,7 @@
-
+
Use the following command to list all created audio output devices: @@ -905,7 +979,7 @@
-
+
Use the following command to get current settings of a specific, created audio output device: @@ -914,7 +988,7 @@ Where <device-id> should be replaced by numerical ID of the audio output device as e.g. returned by the - "LIST AUDIO_OUTPUT_DEVICES" command. + "LIST AUDIO_OUTPUT_DEVICES" command. Possible Answers: LinuxSampler will answer by sending a <CRLF> separated list. Each answer line begins with the information category name @@ -928,7 +1002,9 @@ DRIVER - identifier of the used audio output driver, as also - returned by the "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS" + returned by the + + "LIST AVAILABLE_AUDIO_OUTPUT_DRIVERS" command @@ -957,8 +1033,8 @@ order. The fields above are only those fields which are returned by all audio output devices. Every audio output driver might have its own, additional driver specific parameters (see - "GET AUDIO_OUTPUT_DRIVER INFO" command) which are also returned - by this command. + ) + which are also returned by this command. Example: @@ -976,7 +1052,7 @@
-
+
Use the following command to alter a specific setting of a created audio output device: @@ -984,7 +1060,10 @@ Where <device-id> should be replaced by the numerical ID of the - audio output device, <key> by the name of the parameter to change + audio output device as given by the + "CREATE AUDIO_OUTPUT_DEVICE" + or "LIST AUDIO_OUTPUT_DEVICES" + command, <key> by the name of the parameter to change and <value> by the new value for this parameter. Possible Answers: @@ -1018,15 +1097,17 @@
-
+
Use the following command to get information about an audio channel: GET AUDIO_OUTPUT_CHANNEL INFO <device-id> <audio-chan> - Where <device-id> is the numerical ID of the audio output device - and <audio-chan> the audio channel number. + Where <device-id> is the numerical ID of the audio output device as given by the + "CREATE AUDIO_OUTPUT_DEVICE" + or "LIST AUDIO_OUTPUT_DEVICES" + command and <audio-chan> the audio channel number. Possible Answers: @@ -1116,7 +1197,7 @@
-
+
Use the following command to get detailed information about specific audio channel parameter: @@ -1125,10 +1206,13 @@ - Where <dev-id> is the numerical ID of the audio output device as returned - by the "GET AUDIO_OUTPUT_DEVICES" command, <chan> the audio channel number + Where <dev-id> is the numerical ID of the audio output device as returned by the + "CREATE AUDIO_OUTPUT_DEVICE" + or "LIST AUDIO_OUTPUT_DEVICES" + command, <chan> the audio channel number and <param> a specific channel parameter name for which information should - be obtained (as returned by the "GET AUDIO_OUTPUT_CHANNEL INFO" command). + be obtained (as returned by the + "GET AUDIO_OUTPUT_CHANNEL INFO" command). Possible Answers: @@ -1219,15 +1303,17 @@
-
+
Use the following command to alter a specific setting of an audio output channel: SET AUDIO_OUTPUT_CHANNEL_PARAMETER <dev-id> <chn> <key>=<value> - Where <dev-id> should be replaced by the numerical ID of the audio - device, <chn> by the audio channel number, <key> by the name of the + Where <dev-id> should be replaced by the numerical ID of the audio output device as returned by the + "CREATE AUDIO_OUTPUT_DEVICE" + or "LIST AUDIO_OUTPUT_DEVICES" + command, <chn> by the audio channel number, <key> by the name of the parameter to change and <value> by the new value for this parameter. Possible Answers: @@ -1295,12 +1381,37 @@ showing how to retrieve what parameters drivers are offering, how to retrieve their possible values, etc. -
+
+ Use the following command to get the number of + MIDI input drivers currently available for the + LinuxSampler instance: + + + GET AVAILABLE_MIDI_INPUT_DRIVERS + + + Possible Answers: + + + LinuxSampler will answer by sending the + number of available MIDI input drivers. + + + Example: + + + C: "GET AVAILABLE_MIDI_INPUT_DRIVERS" + S: "2" + + +
+ +
Use the following command to list all MIDI input drivers currently available for the LinuxSampler instance: - GET AVAILABLE_MIDI_INPUT_DRIVERS + LIST AVAILABLE_MIDI_INPUT_DRIVERS Possible Answers: @@ -1313,20 +1424,22 @@ Example: - C: "GET AVAILABLE_MIDI_INPUT_DRIVERS" + C: "LIST AVAILABLE_MIDI_INPUT_DRIVERS" S: "ALSA,JACK"
-
+
Use the following command to get detailed information about a specific MIDI input driver: GET MIDI_INPUT_DRIVER INFO <midi-input-driver> - Where <midi-input-driver> is the name of the MIDI input driver. + Where <midi-input-driver> is the name of the MIDI input driver as returned + by the + "LIST AVAILABLE_MIDI_INPUT_DRIVERS" command. Possible Answers: @@ -1373,7 +1486,7 @@
-
+
Use the following command to get detailed information about a specific parameter of a specific MIDI input driver: @@ -1381,10 +1494,12 @@ - Where <midi-t> is the name of the MIDI input driver as returned - by the "GET AVAILABLE_MIDI_INPUT_DRIVERS" command, <param> a specific + Where <midit> is the name of the MIDI input driver as returned + by the + "LIST AVAILABLE_MIDI_INPUT_DRIVERS" command, <param> a specific parameter name for which information should be obtained (as returned by the - "GET MIDI_INPUT_DRIVER INFO" command) and <deplist> is an optional list + + "GET MIDI_INPUT_DRIVER INFO" command) and <deplist> is an optional list of parameters on which the sought parameter <param> depends on, <deplist> is a key-value pair list in form of "key1=val1 key2=val2 ...", where character string values are encapsulated into apostrophes ('). Arguments @@ -1425,7 +1540,8 @@ either true or false, defines if this parameter must be given when the device is to be created with the - 'CREATE MIDI_INPUT_DEVICE' command + + 'CREATE MIDI_INPUT_DEVICE' command (always returned, no matter which driver parameter) @@ -1434,7 +1550,8 @@ either true or false, if false then this parameter can be changed at any time, once the device is created by - the 'CREATE MIDI_INPUT_DEVICE' command + the + 'CREATE MIDI_INPUT_DEVICE' command (always returned, no matter which driver parameter) @@ -1450,7 +1567,7 @@ DEPENDS - - comma separated list of paramters this parameter depends + comma separated list of parameters this parameter depends on, means the values for fields 'DEFAULT', 'RANGE_MIN', 'RANGE_MAX' and 'POSSIBILITIES' might depend on these listed parameters, for example assuming that an audio @@ -1467,7 +1584,8 @@ reflects the default value for this parameter which is used when the device is created and not explicitly - given with the 'CREATE MIDI_INPUT_DEVICE' command, + given with the + 'CREATE MIDI_INPUT_DEVICE' command, in case of MULTIPLCITY=true, this is a comma separated list, that's why character strings are encapsulated into apostrophes (') @@ -1523,7 +1641,7 @@
-
+
Use the following command to create a new MIDI input device for the desired MIDI input system: @@ -1531,7 +1649,9 @@ - Where <midi-input-driver> should be replaced by the desired MIDI input system and <param-list> by an + Where <midi-input-driver> should be replaced by the desired MIDI input system as returned + by the + "LIST AVAILABLE_MIDI_INPUT_DRIVERS" command and <param-list> by an optional list of driver specific parameters in form of "key1=val1 key2=val2 ...", where character string values should be encapsulated into apostrophes ('). Note that there might be drivers which require parameter(s) to be @@ -1571,14 +1691,17 @@
-
+
Use the following command to destroy a created MIDI input device: DESTROY MIDI_INPUT_DEVICE <device-id> - Where <device-id> should be replaced by the device's numerical ID. + Where <device-id> should be replaced by the device's numerical ID as returned by the + "CREATE MIDI_INPUT_DEVICE" + or "LIST MIDI_INPUT_DEVICES" + command. Possible Answers: @@ -1610,7 +1733,7 @@
-
+
Use the following command to count all created MIDI input devices: @@ -1634,7 +1757,7 @@
-
+
Use the following command to list all created MIDI input devices: @@ -1663,14 +1786,17 @@
-
+
Use the following command to get current settings of a specific, created MIDI input device: GET MIDI_INPUT_DEVICE INFO <device-id> - Where <device-id> is the numerical ID of the MIDI input device. + Where <device-id> is the numerical ID of the MIDI input device as returned by the + "CREATE MIDI_INPUT_DEVICE" + or "LIST MIDI_INPUT_DEVICES" + command. Possible Answers: @@ -1687,7 +1813,8 @@ DRIVER - identifier of the used MIDI input driver, as e.g. - returned by the "GET AVAILABLE_MIDI_INPUT_DRIVERS" + returned by the + "LIST AVAILABLE_MIDI_INPUT_DRIVERS" command @@ -1710,7 +1837,8 @@ order. The fields above are only those fields which are returned by all MIDI input devices. Every MIDI input driver might have its own, additional driver specific parameters (see - "GET MIDI_INPUT_DRIVER INFO" command) which are also returned + + "GET MIDI_INPUT_DRIVER INFO" command) which are also returned by this command. Example: @@ -1724,7 +1852,7 @@
-
+
Use the following command to alter a specific setting of a created MIDI input device: @@ -1733,7 +1861,10 @@ Where <device-id> should be replaced by the numerical ID of the - MIDI input device, <key> by the name of the parameter to change and + MIDI input device as returned by the + "CREATE MIDI_INPUT_DEVICE" + or "LIST MIDI_INPUT_DEVICES" + command, <key> by the name of the parameter to change and <value> by the new value for this parameter. Possible Answers: @@ -1767,15 +1898,17 @@
-
+
Use the following command to get information about a MIDI port: GET MIDI_INPUT_PORT INFO <device-id> <midi-port> - Where <device-id> is the numerical ID of the MIDI input device - and <midi-port> the MIDI input port number. + Where <device-id> is the numerical ID of the MIDI input device as returned by the + "CREATE MIDI_INPUT_DEVICE" + or "LIST MIDI_INPUT_DEVICES" + command and <midi-port> the MIDI input port number. Possible Answers: @@ -1809,7 +1942,7 @@
-
+
Use the following command to get detailed information about specific MIDI port parameter: @@ -1817,10 +1950,13 @@ - Where <dev-id> is the numerical ID of the MIDI input device as returned - by the "LIST MIDI_INPUT_DEVICES" command, <port> the MIDI port number and + Where <dev-id> is the numerical ID of the MIDI input device as returned by the + "CREATE MIDI_INPUT_DEVICE" + or "LIST MIDI_INPUT_DEVICES" + command, <port> the MIDI port number and <param> a specific port parameter name for which information should be - obtained (as returned by the "GET MIDI_INPUT_PORT INFO" command). + obtained (as returned by the + "GET MIDI_INPUT_PORT INFO" command). Possible Answers: @@ -1911,7 +2047,7 @@
-
+
Use the following command to alter a specific setting of a MIDI input port: @@ -1920,9 +2056,13 @@ Where <device-id> should be replaced by the numerical ID of the - MIDI device, <port> by the MIDI port number, <key> by the name of + MIDI device as returned by the + "CREATE MIDI_INPUT_DEVICE" + or "LIST MIDI_INPUT_DEVICES" + command, <port> by the MIDI port number, <key> by the name of the parameter to change and <value> by the new value for this - parameter. + parameter (encapsulated into apostrophes) or NONE (not encapsulated into apostrophes) + for specifying no value for parameters allowing a list of values. Possible Answers: @@ -1949,17 +2089,25 @@ Example: - + C: "SET MIDI_INPUT_PORT_PARAMETER 0 0 ALSA_SEQ_BINDINGS='20:0'" + S: "OK" + + + + + C: "SET MIDI_INPUT_PORT_PARAMETER 0 0 ALSA_SEQ_BINDINGS=NONE" + S: "OK"
- The following commands describe how to add and remove sampler channels, deploy - sampler engines, load instruments and connect sampler channels to MIDI and audio devices. + The following commands describe how to add and remove sampler channels, associate a + sampler channel with a sampler engine, load instruments and connect sampler channels to + MIDI and audio devices. -
+
An instrument file can be loaded and assigned to a sampler channel by one of the following commands: @@ -1973,11 +2121,18 @@ number of the sampler channel the instrument should be assigned to. Each sampler channel can only have one instrument. + Notice: since LSCP 1.2 the <filename> argument supports + escape characters for special characters (see chapter + "Character Set and Escape Sequences" + for details) and accordingly backslash characters in the filename + MUST now be escaped as well! + The difference between regular and NON_MODAL versions of the command is that the regular command returns OK only after the instrument has been fully loaded and the channel is ready to be used while NON_MODAL version returns immediately and a background process is launched to load the instrument - on the channel. GET CHANNEL INFO command can be used to obtain loading + on the channel. The GET CHANNEL INFO + command can be used to obtain loading progress from INSTRUMENT_STATUS field. LOAD command will perform sanity checks such as making sure that the file could be read and it is of a proper format and SHOULD return ERR and SHOULD not launch the background process should any @@ -2015,8 +2170,8 @@
-
- A sample engine can be deployed and assigned to a specific sampler +
+ A sampler engine type can be associated to a specific sampler channel by the following command: @@ -2025,10 +2180,19 @@ Where <engine-name> is an engine name as obtained by the - "GET AVAILABLE_ENGINES" command and <sampler-channel> the sampler channel the - deployed engine should be assigned to. Even if the respective - sampler channel has already a deployed engine with that engine - name, a new engine instance will be assigned to the sampler channel. + + "LIST AVAILABLE_ENGINES" command and <sampler-channel> + the sampler channel as returned by the + "ADD CHANNEL" or + "LIST CHANNELS" command where + the engine type should be assigned to. This command should be issued + after adding a new sampler channel and before any other control + commands on the new sampler channel. It can also be used to change + the engine type of a sampler channel. This command has (currently) no + way to define or force if a new engine instance should be created and + assigned to the given sampler channel or if an already existing + instance of that engine type, shared with other sampler channels, + should be used. Possible Answers: @@ -2061,7 +2225,7 @@
-
+
The number of sampler channels can change on runtime. To get the current amount of sampler channels, the front-end can send the following command: @@ -2085,7 +2249,7 @@
-
+
The number of sampler channels can change on runtime. To get the current list of sampler channels, the front-end can send the following command: @@ -2110,7 +2274,7 @@
-
+
A new sampler channel can be added to the end of the sampler channel list by sending the following command: @@ -2134,8 +2298,8 @@ in case a new sampler channel could be added, where <sampler-channel> reflects the channel number of the new - created sampler channel which should the be used to set up - the sampler channel by sending subsequent intialization + created sampler channel which should be used to set up + the sampler channel by sending subsequent initialization commands @@ -2162,7 +2326,7 @@
-
+
A sampler channel can be removed by sending the following command: @@ -2170,9 +2334,12 @@ - This will decrement the sampler channel count by one and also - decrement the channel numbers of all subsequent sampler channels by - one. + Where <sampler-channel> should be replaced by the + number of the sampler channel as given by the + "ADD CHANNEL" + or "LIST CHANNELS" + command. The channel numbers of all subsequent sampler channels + remain the same. Possible Answers: @@ -2205,8 +2372,8 @@
-
- The front-end can ask for all available engines by sending the following command: +
+ The front-end can ask for the number of available engines by sending the following command: GET AVAILABLE_ENGINES @@ -2215,21 +2382,44 @@ Possible Answers: - LinuxSampler will answer by sending a comma separated character - string of the engines' names. Engine names can consist of lower and - upper cases, digits and underlines ("_" character). + LinuxSampler will answer by sending the number of available engines. Example: C: "GET AVAILABLE_ENGINES" - S: "GigEngine,AkaiEngine,DLSEngine,JoesCustomEngine" + S: "4" + + +
+ +
+ The front-end can ask for a list of all available engines by sending the following command: + + + LIST AVAILABLE_ENGINES + + + Possible Answers: + + + LinuxSampler will answer by sending a comma separated list + of the engines' names encapsulated into apostrophes ('). + Engine names can consist of lower and upper cases, + digits and underlines ("_" character). + + + Example: + + + C: "LIST AVAILABLE_ENGINES" + S: "'GigEngine','AkaiEngine','DLSEngine','JoesCustomEngine'"
-
+
The front-end can ask for information about a specific engine by sending the following command: @@ -2238,7 +2428,8 @@ Where <engine-name> is an engine name as obtained by the - "GET AVAILABLE_ENGINES" command. + + "LIST AVAILABLE_ENGINES" command. Possible Answers: @@ -2278,7 +2469,7 @@
-
+
The front-end can ask for the current settings of a sampler channel by sending the following command: @@ -2286,7 +2477,9 @@ GET CHANNEL INFO <sampler-channel> - Where <sampler-channel> is the sampler channel number the front-end is interested in. + Where <sampler-channel> is the sampler channel number the front-end is interested in + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command. Possible Answers: @@ -2300,8 +2493,8 @@ ENGINE_NAME - - name of the engine that is deployed on the sampler - channel, "NONE" if there's no engine deployed yet for + name of the engine that is associated with the sampler + channel, "NONE" if there's no engine associated yet for this sampler channel @@ -2376,10 +2569,33 @@ VOLUME - optionally dotted number for the channel volume factor - (where a value < 1.0 means attenuation and a value > + (where a value < 1.0 means attenuation and a value > 1.0 means amplification) + MUTE - + + Determines whether the channel is muted, "true" if the + channel is muted, "false" if the channel is not muted, and + "MUTED_BY_SOLO" if the channel is muted because of the + presence of a solo channel and will be unmuted when + there are no solo channels left + + + SOLO - + + Determines whether this is a solo channel, "true" if + the channel is a solo channel; "false" otherwise + + + MIDI_INSTRUMENT_MAP - + + Determines to which MIDI instrument map this sampler + channel is assigned to. Read chapter + "SET CHANNEL MIDI_INSTRUMENT_MAP" + for a list of possible values. + + @@ -2402,12 +2618,16 @@    "MIDI_INPUT_DEVICE: 0"    "MIDI_INPUT_PORT: 0"    "MIDI_INPUT_CHANNEL: 5" +    "VOLUME: 1.0" +    "MUTE: false" +    "SOLO: false" +    "MIDI_INSTRUMENT_MAP: NONE"    "."
-
+
The front-end can ask for the current number of active voices on a sampler channel by sending the following command: @@ -2415,7 +2635,9 @@ GET CHANNEL VOICE_COUNT <sampler-channel> - Where <sampler-channel> is the sampler channel number the front-end is interested in. + Where <sampler-channel> is the sampler channel number the front-end is interested in + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command. Possible Answers: @@ -2432,7 +2654,7 @@
-
+
The front-end can ask for the current number of active disk streams on a sampler channel by sending the following command: @@ -2440,7 +2662,9 @@ GET CHANNEL STREAM_COUNT <sampler-channel> - Where <sampler-channel> is the sampler channel number the front-end is interested in. + Where <sampler-channel> is the sampler channel number the front-end is interested in + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command. Possible Answers: @@ -2459,7 +2683,7 @@
-
+
The front-end can ask for the current fill state of all disk streams on a sampler channel by sending the following command: @@ -2474,7 +2698,9 @@ to get the fill state in percent, where <sampler-channel> is the - sampler channel number the front-end is interested in. + sampler channel number the front-end is interested in + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command. Possible Answers: @@ -2510,7 +2736,7 @@
-
+
The front-end can set the audio output device on a specific sampler channel by sending the following command: @@ -2518,9 +2744,13 @@ SET CHANNEL AUDIO_OUTPUT_DEVICE <sampler-channel> <audio-device-id> - Where <audio-device-id> is the numerical ID of the audio output - device and <sampler-channel> is the respective sampler channel - number. + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command and + <audio-device-id> is the numerical ID of the audio output device as given by the + "CREATE AUDIO_OUTPUT_DEVICE" + or "LIST AUDIO_OUTPUT_DEVICES" + command. Possible Answers: @@ -2552,7 +2782,7 @@
-
+
DEPRECATED: THIS COMMAND WILL DISAPPEAR SOON! The front-end can alter the audio output type on a specific sampler @@ -2595,7 +2825,7 @@
-
+
The front-end can alter the audio output channel on a specific sampler channel by sending the following command: @@ -2603,9 +2833,11 @@ SET CHANNEL AUDIO_OUTPUT_CHANNEL <sampler-chan> <audio-out> <audio-in> - Where <sampler-chan> is the sampler channel, <audio-out> is the - sampler channel's audio output channel which should be - rerouted and <audio-in> the audio channel of the selected audio + Where <sampler-chan> is the sampler channel number + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command, <audio-out> is the + numerical ID of the sampler channel's audio output channel which should be + rerouted and <audio-in> is the numerical ID of the audio channel of the selected audio output device where <audio-out> should be routed to. Possible Answers: @@ -2638,7 +2870,7 @@
-
+
The front-end can set the MIDI input device on a specific sampler channel by sending the following command: @@ -2646,7 +2878,12 @@ SET CHANNEL MIDI_INPUT_DEVICE <sampler-channel> <midi-device-id> - + Where <sampler-channel> is the sampler channel number + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command + and <midi-device-id> is the numerical ID of the MIDI input device as returned by the + "CREATE MIDI_INPUT_DEVICE" + or "LIST MIDI_INPUT_DEVICES" command. Possible Answers: @@ -2678,7 +2915,7 @@
-
+
DEPRECATED: THIS COMMAND WILL DISAPPEAR SOON! The front-end can alter the MIDI input type on a specific sampler @@ -2721,8 +2958,8 @@
-
- The front-end can alter the input MIDI port on a specific sampler +
+ The front-end can alter the MIDI input port on a specific sampler channel by sending the following command: @@ -2750,7 +2987,7 @@ "ERR:<error-code>:<error-message>" - - in case it failed, providing an appropriate error code and error messag + in case it failed, providing an appropriate error code and error message @@ -2763,7 +3000,7 @@
-
+
The front-end can alter the MIDI channel a sampler channel should listen to by sending the following command: @@ -2771,7 +3008,7 @@ SET CHANNEL MIDI_INPUT_CHANNEL <sampler-channel> <midi-input-chan> - Where <midi-input-chan> is the new MIDI input channel where + Where <midi-input-chan> is the number of the new MIDI input channel where <sampler-channel> should listen to or "ALL" to listen on all 16 MIDI channels. @@ -2805,7 +3042,7 @@
-
+
The front-end can alter the volume of a sampler channel by sending the following command: @@ -2848,7 +3085,613 @@
-
+
+ The front-end can mute/unmute a specific sampler + channel by sending the following command: + + + SET CHANNEL MUTE <sampler-channel> <mute> + + + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command and + <mute> should be replaced either by "1" to mute the channel or "0" + to unmute the channel. + + Possible Answers: + + + "OK" - + + on success + + + "WRN:<warning-code>:<warning-message>" - + + if the channel was muted/unmuted, but there are noteworthy + issue(s) related, providing an appropriate warning code and + warning message + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + + Examples: + + + + + +
+ +
+ The front-end can solo/unsolo a specific sampler channel + by sending the following command: + + + SET CHANNEL SOLO <sampler-channel> <solo> + + + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command and + <solo> should be replaced either by "1" to solo the channel or "0" + to unsolo the channel. + + Possible Answers: + + + "OK" - + + on success + + + "WRN:<warning-code>:<warning-message>" - + + if the channel was soloed/unsoloed, but there are noteworthy + issue(s) related, providing an appropriate warning code and + warning message + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + + Examples: + + + + + +
+ +
+ The front-end can assign a MIDI instrument map to a specific sampler channel + by sending the following command: + + + SET CHANNEL MIDI_INSTRUMENT_MAP <sampler-channel> <map> + + + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command and + <map> can have the following possibilites: + + + "NONE" - + + This is the default setting. In this case + the sampler channel is not assigned any MIDI + instrument map and thus will ignore all MIDI + program change messages. + + + "DEFAULT" - + + The sampler channel will always use the + default MIDI instrument map to handle MIDI + program change messages. + + + numeric ID - + + You can assign a specific MIDI instrument map + by replacing <map> with the respective numeric + ID of the MIDI instrument map as returned by the + "LIST MIDI_INSTRUMENT_MAPS" + command. Once that map will be deleted, the sampler + channel would fall back to "NONE". + + + + + Read chapter "MIDI Instrument Mapping" + for details regarding MIDI instrument mapping. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + + + Examples: + + + + + +
+ +
+ The front-end can create an additional effect send on a specific sampler channel + by sending the following command: + + + CREATE FX_SEND <sampler-channel> <midi-ctrl> [<name>] + + + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command, that is the + sampler channel on which the effect send should be created on, <midi-ctrl> + is a number between 0..127 defining the MIDI controller which can alter the + effect send level and <name> is an optional argument defining a name + for the effect send entity. The name does not have to be unique. + + By default, that is as initial routing, the effect send's audio channels + are automatically routed to the last audio channels of the sampler channel's + audio output device, that way you can i.e. first increase the amount of audio + channels on the audio output device for having dedicated effect send output + channels and when "CREATE FX_SEND" is called, those channels will automatically + be picked. You can alter the destination channels however with + "SET FX_SEND AUDIO_OUTPUT_CHANNEL". + + + Note: Create effect sends on a sampler channel only when needed, because having effect + sends on a sampler channel will decrease runtime performance, because for implementing channel + effect sends, separate (sampler channel local) audio buffers are needed to render and mix + the voices and route the audio signal afterwards to the master outputs and effect send + outputs (along with their respective effect send levels). A sampler channel without effect + sends however can mix its voices directly into the audio output devices's audio buffers + and is thus faster. + + + Possible Answers: + + + "OK[<fx-send-id>]" - + + in case a new effect send could be added to the + sampler channel, where <fx-send-id> reflects the + unique ID of the newly created effect send entity + + + "ERR:<error-code>:<error-message>" - + + when a new effect send could not be added, i.e. + due to invalid parameters + + + + + + Examples: + + + C: "CREATE FX_SEND 0 91 'Reverb Send'" + S: "OK[0]" + + + + + C: "CREATE FX_SEND 0 93" + S: "OK[1]" + + +
+ +
+ The front-end can remove an existing effect send on a specific sampler channel + by sending the following command: + + + DESTROY FX_SEND <sampler-channel> <fx-send-id> + + + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command, that is the + sampler channel from which the effect send should be removed from and + <fx-send-id> is the respective effect send number as returned by the + "CREATE FX_SEND" + or "LIST FX_SENDS" command. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and + error message + + + + + + Example: + + + C: "DESTROY FX_SEND 0 0" + S: "OK" + + +
+ +
+ The front-end can ask for the amount of effect sends on a specific sampler channel + by sending the following command: + + + GET FX_SENDS <sampler-channel> + + + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command. + + Possible Answers: + + + The sampler will answer by returning the number of effect + sends on the given sampler channel. + + + + Example: + + + C: "GET FX_SENDS 0" + S: "2" + + +
+ +
+ The front-end can ask for a list of effect sends on a specific sampler channel + by sending the following command: + + + LIST FX_SENDS <sampler-channel> + + + Where <sampler-channel> is the respective sampler channel + number as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command. + + Possible Answers: + + + The sampler will answer by returning a comma separated list + with all effect sends' numerical IDs on the given sampler + channel. + + + + Examples: + + + C: "LIST FX_SENDS 0" + S: "0,1" + + + + + C: "LIST FX_SENDS 1" + S: "" + + +
+ +
+ The front-end can ask for the current settings of an effect send entity + by sending the following command: + + + GET FX_SEND INFO <sampler-channel> <fx-send-id> + + + Where <sampler-channel> is the sampler channel number + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command and + <fx-send-id> reflects the numerical ID of the effect send entity + as returned by the "CREATE FX_SEND" + or "LIST FX_SENDS" command. + + + Possible Answers: + + + The sampler will answer by sending a <CRLF> separated list. + Each answer line begins with the settings category name + followed by a colon and then a space character <SP> and finally + the info character string to that setting category. At the + moment the following categories are defined: + + + + NAME - + + name of the effect send entity + + + MIDI_CONTROLLER - + + a value between 0 and 127 reflecting the MIDI controller + which is able to modify the effect send's send level + + + LEVEL - + + optionally dotted number reflecting the effect send's + current send level (where a value < 1.0 means attenuation + and a value > 1.0 means amplification) + + + AUDIO_OUTPUT_ROUTING - + + comma separated list which reflects to which audio + channel of the selected audio output device each + effect send output channel is routed to, e.g. "0,3" would + mean the effect send's output channel 0 is routed to channel + 0 of the audio output device and the effect send's output + channel 1 is routed to the channel 3 of the audio + output device (see + "SET FX_SEND AUDIO_OUTPUT_CHANNEL" + for details) + + + + + + + The mentioned fields above don't have to be in particular order. + + Example: + + + C: "GET FX_SEND INFO 0 0" + S: "NAME: Reverb Send" +    "MIDI_CONTROLLER: 91" +    "LEVEL: 0.3" +    "AUDIO_OUTPUT_ROUTING: 2,3" +    "." + + +
+ +
+ The front-end can alter the current name of an effect + send entity by sending the following command: + + + SET FX_SEND NAME <sampler-chan> <fx-send-id> <name> + + + Where <sampler-chan> is the sampler channel number + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command, + <fx-send-id> reflects the numerical ID of the effect send entity + as returned by the "CREATE FX_SEND" + or "LIST FX_SENDS" command and + <name> is the new name of the effect send entity, which + does not have to be unique. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + + Example: + + + C: "SET FX_SEND NAME 0 0 'Fx Send 1'" + S: "OK" + + +
+ +
+ The front-end can alter the destination of an effect send's audio channel on a specific + sampler channel by sending the following command: + + + SET FX_SEND AUDIO_OUTPUT_CHANNEL <sampler-chan> <fx-send-id> <audio-src> <audio-dst> + + + Where <sampler-chan> is the sampler channel number + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command, + <fx-send-id> reflects the numerical ID of the effect send entity + as returned by the "CREATE FX_SEND" + or "LIST FX_SENDS" command, + <audio-src> is the numerical ID of the effect send's audio channel + which should be rerouted and <audio-dst> is the numerical ID of + the audio channel of the selected audio output device where <audio-src> + should be routed to. + + Note that effect sends can only route audio to the same audio output + device as assigned to the effect send's sampler channel. Also note that an + effect send entity does always have exactly as much audio channels as its + sampler channel. So if the sampler channel is stereo, the effect send does + have two audio channels as well. Also keep in mind that the amount of audio + channels on a sampler channel might be dependant not only to the deployed + sampler engine on the sampler channel, but also dependant to the instrument + currently loaded. However you can (effectively) turn an i.e. stereo effect + send into a mono one by simply altering its audio routing appropriately. + + Possible Answers: + + + "OK" - + + on success + + + "WRN:<warning-code>:<warning-message>" - + + if audio output channel was set, but there are noteworthy + issue(s) related, providing an appropriate warning code and + warning message + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + + Example: + + + C: "SET FX_SEND AUDIO_OUTPUT_CHANNEL 0 0 0 2" + S: "OK" + + +
+ +
+ The front-end can alter the MIDI controller of an effect + send entity by sending the following command: + + + SET FX_SEND MIDI_CONTROLLER <sampler-chan> <fx-send-id> <midi-ctrl> + + + Where <sampler-chan> is the sampler channel number + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command, + <fx-send-id> reflects the numerical ID of the effect send entity + as returned by the "CREATE FX_SEND" + or "LIST FX_SENDS" command and + <midi-ctrl> reflects the MIDI controller which shall be + able to modify the effect send's send level. + + Possible Answers: + + + "OK" - + + on success + + + "WRN:<warning-code>:<warning-message>" - + + if MIDI controller was set, but there are noteworthy + issue(s) related, providing an appropriate warning code and + warning message + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + + Example: + + + C: "SET FX_SEND MIDI_CONTROLLER 0 0 91" + S: "OK" + + +
+ +
+ The front-end can alter the current send level of an effect + send entity by sending the following command: + + + SET FX_SEND LEVEL <sampler-chan> <fx-send-id> <volume> + + + Where <sampler-chan> is the sampler channel number + as returned by the "ADD CHANNEL" + or "LIST CHANNELS" command, + <fx-send-id> reflects the numerical ID of the effect send entity + as returned by the "CREATE FX_SEND" + or "LIST FX_SENDS" command and + <volume> is an optionally dotted positive number (a value + smaller than 1.0 means attenuation, whereas a value greater than + 1.0 means amplification) reflecting the new send level. + + Possible Answers: + + + "OK" - + + on success + + + "WRN:<warning-code>:<warning-message>" - + + if new send level was set, but there are noteworthy + issue(s) related, providing an appropriate warning code and + warning message + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + + Example: + + + C: "SET FX_SEND LEVEL 0 0 0.15" + S: "OK" + + +
+ +
The front-end can reset a particular sampler channel by sending the following command: @@ -2896,7 +3739,7 @@
The following commands are used to control the connection to LinuxSampler. -
+
The front-end can register itself to the LinuxSampler application to be informed about noteworthy events by sending this command: @@ -2938,7 +3781,7 @@
-
+
The front-end can unregister itself if it doesn't want to receive event messages anymore by sending the following command: @@ -2980,7 +3823,7 @@
-
+
To enable or disable back sending of commands to the client the following command can be used: @@ -3018,7 +3861,7 @@
-
+
The client can close its network connection to LinuxSampler by sending the following command: @@ -3033,7 +3876,43 @@
The following commands have global impact on the sampler. -
+
+ The front-end can ask for the current number of active voices on + the sampler by sending the following command: + + + GET TOTAL_VOICE_COUNT + + + + Possible Answers: + + + LinuxSampler will answer by returning the number of all active + voices on the sampler. + + +
+ +
+ The front-end can ask for the maximum number of active voices + by sending the following command: + + + GET TOTAL_VOICE_COUNT_MAX + + + + Possible Answers: + + + LinuxSampler will answer by returning the maximum number + of active voices. + + +
+ +
The front-end can reset the whole sampler by sending the following command: @@ -3058,37 +3937,2981 @@
+ +
+ The client can ask for general informations about the LinuxSampler + instance by sending the following command: + + + GET SERVER INFO + + + Possible Answers: + + + LinuxSampler will answer by sending a <CRLF> separated list. + Each answer line begins with the information category name + followed by a colon and then a space character <SP> and finally + the info character string to that information category. At the + moment the following categories are defined: + + + + DESCRIPTION - + + arbitrary textual description about the sampler + + + VERSION - + + version of the sampler + + + PROTOCOL_VERSION - + + version of the LSCP specification the sampler + complies with (see for details) + + + INSTRUMENTS_DB_SUPPORT - + + either yes or no, specifies whether the + sampler is build with instruments database support. + + + + + + + The mentioned fields above don't have to be in particular order. + Other fields might be added in future. +
+ +
+ The client can ask for the current global sampler-wide volume + attenuation by sending the following command: + + + GET VOLUME + + + Possible Answers: + + + The sampler will always answer by returning the optional + dotted floating point coefficient, reflecting the current + global volume attenuation. + + + + Note: it is up to the respective sampler engine whether to obey + that global volume parameter or not, but in general all engines SHOULD + use this parameter. +
+ +
+ The client can alter the current global sampler-wide volume + attenuation by sending the following command: + + + SET VOLUME <volume> + + + Where <volume> should be replaced by the optional dotted + floating point value, reflecting the new global volume parameter. + This value might usually be in the range between 0.0 and 1.0, that + is for attenuating the overall volume. + + Possible Answers: + + + "OK" - + + on success + + + "WRN:<warning-code>:<warning-message>" - + + if the global volume was set, but there are noteworthy + issue(s) related, providing an appropriate warning code and + warning message + + + "ERR:<error-code>:<error-message>" - + + in case it failed, providing an appropriate error code and error message + + + + +
+
+ + +
+ The MIDI protocol provides a way to switch between instruments + by sending so called MIDI bank select and MIDI program change + messages which are essentially just numbers. The following commands + allow to actually map arbitrary MIDI bank select / program change + numbers with real instruments. + The sampler allows to manage an arbitrary amount of MIDI + instrument maps which define which instrument to load on + which MIDI program change message. + By default, that is when the sampler is launched, there is no + map, thus the sampler will simply ignore all program change + messages. The front-end has to explicitly create at least one + map, add entries to the map and tell the respective sampler + channel(s) which MIDI instrument map to use, so the sampler + knows how to react on a given program change message on the + respective sampler channel, that is by switching to the + respectively defined engine type and loading the respective + instrument. See command + "SET CHANNEL MIDI_INSTRUMENT_MAP" + for how to assign a MIDI instrument map to a sampler channel. + Also note per MIDI specification a bank select message does not + cause to switch to another instrument. Instead when receiving a + bank select message the bank value will be stored and a subsequent + program change message (which may occur at any time) will finally + cause the sampler to switch to the respective instrument as + reflected by the current MIDI instrument map. + +
+ The front-end can add a new MIDI instrument map by sending + the following command: + + + ADD MIDI_INSTRUMENT_MAP [<name>] + + + Where <name> is an optional argument allowing to + assign a custom name to the new map. MIDI instrument Map + names do not have to be unique. + + Possible Answers: + + + "OK[<map>]" - + + in case a new MIDI instrument map could + be added, where <map> reflects the + unique ID of the newly created MIDI + instrument map + + + "ERR:<error-code>:<error-message>" - + + when a new map could not be created, which + might never occur in practice + + + + + + Examples: + + + C: "ADD MIDI_INSTRUMENT_MAP 'Standard Map'" + S: "OK[0]" + + + + + C: "ADD MIDI_INSTRUMENT_MAP 'Standard Drumkit'" + S: "OK[1]" + + + + + C: "ADD MIDI_INSTRUMENT_MAP" + S: "OK[5]" + + +
+ +
+ The front-end can delete a particular MIDI instrument map + by sending the following command: + + + REMOVE MIDI_INSTRUMENT_MAP <map> + + + Where <map> reflects the unique ID of the map to delete + as returned by the "LIST MIDI_INSTRUMENT_MAPS" + command. + The front-end can delete all MIDI instrument maps by + sending the following command: + + + REMOVE MIDI_INSTRUMENT_MAP ALL + + + + Possible Answers: + + + "OK" - + + in case the map(s) could be deleted + + + "ERR:<error-code>:<error-message>" - + + when the given map does not exist + + + + + + Examples: + + + C: "REMOVE MIDI_INSTRUMENT_MAP 0" + S: "OK" + + + + + C: "REMOVE MIDI_INSTRUMENT_MAP ALL" + S: "OK" + + +
+ +
+ The front-end can retrieve the current amount of MIDI + instrument maps by sending the following command: + + + GET MIDI_INSTRUMENT_MAPS + + + + Possible Answers: + + + The sampler will answer by returning the current + number of MIDI instrument maps. + + + + Example: + + + C: "GET MIDI_INSTRUMENT_MAPS" + S: "2" + + +
+ +
+ The number of MIDI instrument maps can change on runtime. To get the + current list of MIDI instrument maps, the front-end can send the + following command: + + + LIST MIDI_INSTRUMENT_MAPS + + + Possible Answers: + + + The sampler will answer by returning a comma separated list + with all MIDI instrument maps' numerical IDs. + + + Example: + + + C: "LIST MIDI_INSTRUMENT_MAPS" + S: "0,1,5,12" + + +
+ +
+ The front-end can ask for the current settings of a MIDI + instrument map by sending the following command: + + + GET MIDI_INSTRUMENT_MAP INFO <map> + + + Where <map> is the numerical ID of the map the + front-end is interested in as returned by the + "LIST MIDI_INSTRUMENT_MAPS" + command. + + Possible Answers: + + + LinuxSampler will answer by sending a <CRLF> separated list. + Each answer line begins with the settings category name + followed by a colon and then a space character <SP> and finally + the info character string to that setting category. At the + moment the following categories are defined: + + + + NAME - + + custom name of the given map, + which does not have to be unique + + + DEFAULT - + + either true or false, + defines whether this map is the default map + + + + + + + The mentioned fields above don't have to be in particular order. + + Example: + + + C: "GET MIDI_INSTRUMENT_MAP INFO 0" + S: "NAME: Standard Map" +    "DEFAULT: true" +    "." + + +
+ +
+ The front-end can alter the custom name of a MIDI + instrument map by sending the following command: + + + SET MIDI_INSTRUMENT_MAP NAME <map> <name> + + + Where <map> is the numerical ID of the map and + <name> the new custom name of the map, which does not + have to be unique. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case the given map does not exist + + + + + + Example: + + + C: "SET MIDI_INSTRUMENT_MAP NAME 0 'Foo instruments'" + S: "OK" + + +
+ +
+ The front-end can create a new or replace an existing entry + in a sampler's MIDI instrument map by sending the following + command: + + + MAP MIDI_INSTRUMENT [NON_MODAL] <map> + <midi_bank> <midi_prog> <engine_name> + <filename> <instrument_index> <volume_value> + [<instr_load_mode>] [<name>] + + + Where <map> is the numeric ID of the map to alter, + <midi_bank> is an integer value between + 0..16383 reflecting the MIDI bank select index, + <midi_prog> an + integer value between 0..127 reflecting the MIDI program change + index, <engine_name> a sampler engine name as returned by + the "LIST AVAILABLE_ENGINES" + command (not encapsulated into apostrophes), <filename> the name + of the instrument's file to be deployed (encapsulated into apostrophes, + supporting escape sequences as described in chapter + "Character Set and Escape Sequences"), + <instrument_index> the index (integer value) of the instrument + within the given file, <volume_value> reflects the master + volume of the instrument as optionally dotted number (where a + value < 1.0 means attenuation and a value > 1.0 means + amplification). This parameter easily allows to adjust the + volume of all intruments within a custom instrument map + without having to adjust their instrument files. The + OPTIONAL <instr_load_mode> argument defines the life + time of the instrument, that is when the instrument should + be loaded, when freed and has exactly the following + possibilities: + + + "ON_DEMAND" - + + The instrument will be loaded when needed, + that is when demanded by at least one sampler + channel. It will immediately be freed from memory + when not needed by any sampler channel anymore. + + + "ON_DEMAND_HOLD" - + + The instrument will be loaded when needed, + that is when demanded by at least one sampler + channel. It will be kept in memory even when + not needed by any sampler channel anymore. + Instruments with this mode are only freed + when the sampler is reset or all mapping + entries with this mode (and respective + instrument) are explicitly changed to + "ON_DEMAND" and no sampler channel is using + the instrument anymore. + + + "PERSISTENT" - + + The instrument will immediately be loaded + into memory when this mapping + command is sent and the instrument is kept all + the time. Instruments with this mode are + only freed when the sampler is reset or all + mapping entries with this mode (and + respective instrument) are explicitly + changed to "ON_DEMAND" and no sampler + channel is using the instrument anymore. + + + not supplied - + + In case there is no <instr_load_mode> + argument given, it will be up to the + InstrumentManager to decide which mode to use. + Usually it will use "ON_DEMAND" if an entry + for the given instrument does not exist in + the InstrumentManager's list yet, otherwise + if an entry already exists, it will simply + stick with the mode currently reflected by + the already existing entry, that is it will + not change the mode. + + + + + + The <instr_load_mode> argument thus allows to define an + appropriate strategy (low memory consumption vs. fast + instrument switching) for each instrument individually. Note, the + following restrictions apply to this argument: "ON_DEMAND_HOLD" and + "PERSISTENT" have to be supported by the respective sampler engine + (which is technically the case when the engine provides an + InstrumentManager for its format). If this is not the case the + argument will automatically fall back to the default value + "ON_DEMAND". Also the load mode of one instrument may + automatically change the laod mode of other instrument(s), i.e. + because the instruments are part of the same file and the + engine does not allow a way to manage load modes for them + individually. Due to this, in case the frontend shows the + load modes of entries, the frontend should retrieve the actual + mode by i.e. sending + "GET MIDI_INSTRUMENT INFO" + command(s). Finally the OPTIONAL <name> argument allows to + set a custom name (encapsulated into apostrophes) for the mapping + entry, useful for frontends for displaying an appropriate name for + mapped instruments (using + "GET MIDI_INSTRUMENT INFO"). + + + By default, "MAP MIDI_INSTRUMENT" commands block until the mapping is + completely established in the sampler. The OPTIONAL "NON_MODAL" argument + however causes the respective "MAP MIDI_INSTRUMENT" command to return + immediately, that is to let the sampler establish the mapping in the + background. So this argument might be especially useful for mappings with + a "PERSISTENT" type, because these have to load the respective instruments + immediately and might thus block for a very long time. It is recommended + however to use the OPTIONAL "NON_MODAL" argument only if really necessary, + because it has the following drawbacks: as "NON_MODAL" instructions return + immediately, they may not necessarily return an error i.e. when the given + instrument file turns out to be corrupt, beside that subsequent commands + in a LSCP instruction sequence might fail, because mandatory mappings are + not yet completed. + + + Possible Answers: + + + "OK" - + + usually + + + "ERR:<error-code>:<error-message>" - + + when the given map or engine does not exist or a value + is out of range + + + + + + Examples: + + + C: "MAP MIDI_INSTRUMENT 0 3 0 gig '/usr/share/Steinway D.gig' 0 0.8 PERSISTENT" + S: "OK" + + + + + C: "MAP MIDI_INSTRUMENT 0 4 50 gig '/home/john/foostrings.gig' 7 1.0" + S: "OK" + + + + + C: "MAP MIDI_INSTRUMENT 0 0 0 gig '/usr/share/piano.gig' 0 1.0 'Normal Piano'" + S: "OK" + C: "MAP MIDI_INSTRUMENT 0 1 0 gig '/usr/share/piano.gig' 0 0.25 'Silent Piano'" + S: "OK" + + + + + C: "MAP MIDI_INSTRUMENT NON_MODAL 1 8 120 gig '/home/joe/foodrums.gig' 0 1.0 PERSISTENT 'Foo Drumkit'" + S: "OK" + + +
+ +
+ The front-end can query the amount of currently existing + entries in a MIDI instrument map by sending the following + command: + + + GET MIDI_INSTRUMENTS <map> + + + The front-end can query the amount of currently existing + entries in all MIDI instrument maps by sending the following + command: + + + GET MIDI_INSTRUMENTS ALL + + + Possible Answers: + + + The sampler will answer by sending the current number of + entries in the MIDI instrument map(s). + + + + Example: + + + C: "GET MIDI_INSTRUMENTS 0" + S: "234" + + + + + C: "GET MIDI_INSTRUMENTS ALL" + S: "954" + + +
+ +
+ The front-end can query a list of all currently existing + entries in a certain MIDI instrument map by sending the following + command: + + + LIST MIDI_INSTRUMENTS <map> + + + Where <map> is the numeric ID of the MIDI instrument map. + The front-end can query a list of all currently existing + entries of all MIDI instrument maps by sending the following + command: + + + LIST MIDI_INSTRUMENTS ALL + + + + Possible Answers: + + + The sampler will answer by sending a comma separated + list of map ID - MIDI bank - MIDI program triples, where + each triple is encapsulated into curly braces. The + list is returned in one single line. Each triple + just reflects the key of the respective map entry, + thus subsequent + "GET MIDI_INSTRUMENT INFO" + command(s) are necessary to retrieve detailed informations + about each entry. + + + + Example: + + + C: "LIST MIDI_INSTRUMENTS 0" + S: "{0,0,0},{0,0,1},{0,0,3},{0,1,4},{1,127,127}" + + +
+ +
+ The front-end can delete an entry from a MIDI instrument + map by sending the following command: + + + UNMAP MIDI_INSTRUMENT <map> <midi_bank> <midi_prog> + + + + Where <map> is the numeric ID of the MIDI instrument map, + <midi_bank> is an integer value between 0..16383 + reflecting the MIDI bank value and + <midi_prog> an integer value between + 0..127 reflecting the MIDI program value of the map's entrie's key + index triple. + + + Possible Answers: + + + "OK" - + + usually + + + "ERR:<error-code>:<error-message>" - + + when index out of bounds + + + + + + Example: + + + C: "UNMAP MIDI_INSTRUMENT 0 2 127" + S: "OK" + + +
+ +
+ The front-end can retrieve the current settings of a certain + instrument map entry by sending the following command: + + + GET MIDI_INSTRUMENT INFO <map> <midi_bank> <midi_prog> + + + + Where <map> is the numeric ID of the MIDI instrument map, + <midi_bank> is an integer value between 0..16383 + reflecting the MIDI bank value, <midi_bank> + and <midi_prog> an integer value between + 0..127 reflecting the MIDI program value of the map's entrie's key + index triple. + + + Possible Answers: + + + LinuxSampler will answer by sending a <CRLF> + separated list. Each answer line begins with the + information category name followed by a colon and then + a space character <SP> and finally the info + character string to that info category. At the moment + the following categories are defined: + "NAME" - + + Name for this MIDI instrument map entry (if defined). + This name shall be used by frontends for displaying a + name for this mapped instrument. It can be set and + changed with the + "MAP MIDI_INSTRUMENT" + command and does not have to be unique. + + + "ENGINE_NAME" - + + Name of the engine to be deployed for this + instrument. + + + "INSTRUMENT_FILE" - + + File name of the instrument. + + + "INSTRUMENT_NR" - + + Index of the instrument within the file. + + + "INSTRUMENT_NAME" - + + Name of the loaded instrument as reflected by its file. + In contrast to the "NAME" field, the "INSTRUMENT_NAME" field + cannot be changed. + + + "LOAD_MODE" - + + Life time of instrument + (see "MAP MIDI_INSTRUMENT" for details about this setting). + + + "VOLUME" - + + master volume of the instrument as optionally + dotted number (where a value < 1.0 means attenuation + and a value > 1.0 means amplification) + + + The mentioned fields above don't have to be in particular order. + + + + Example: + + + C: "GET MIDI_INSTRUMENT INFO 1 45 120" + S: "NAME: Drums for Foo Song" +    "ENGINE_NAME: GigEngine" +    "INSTRUMENT_FILE: /usr/share/joesdrumkit.gig" +    "INSTRUMENT_NR: 0" +    "INSTRUMENT_NAME: Joe's Drumkit" +    "LOAD_MODE: PERSISTENT" +    "VOLUME: 1.0" +    "." + + +
+ +
+ The front-end can clear a whole MIDI instrument map, that + is delete all its entries by sending the following command: + + + CLEAR MIDI_INSTRUMENTS <map> + + + Where <map> is the numeric ID of the map to clear. + The front-end can clear all MIDI instrument maps, that + is delete all entries of all maps by sending the following + command: + + + CLEAR MIDI_INSTRUMENTS ALL + + + The command "CLEAR MIDI_INSTRUMENTS ALL" does not delete the + maps, only their entries, thus the map's settings like + custom name will be preservevd. + + Possible Answers: + + + "OK" - + + always + + + + + + Examples: + + + C: "CLEAR MIDI_INSTRUMENTS 0" + S: "OK" + + + + + C: "CLEAR MIDI_INSTRUMENTS ALL" + S: "OK" + + +
+
+ + +
+ The following commands describe how to use and manage + the instruments database. + Notice: + + + All command arguments representing a path or + instrument/directory name support escape sequences as described in chapter + "Character Set and Escape Sequences". + + All occurrences of a forward slash in instrument and directory + names are escaped with its hex (\x2f) or octal (\057) escape sequence. + + + + +
+ The front-end can add a new instrument directory to the + instruments database by sending the following command: + + + ADD DB_INSTRUMENT_DIRECTORY <dir> + + + Where <dir> is the absolute path name of the directory + to be created (encapsulated into apostrophes). + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + when the directory could not be created, which + can happen if the directory already exists or the + name contains not allowed symbols + + + + + + Examples: + + + C: "ADD DB_INSTRUMENT_DIRECTORY '/Piano Collection'" + S: "OK" + + +
+ +
+ The front-end can delete a particular instrument directory + from the instruments database by sending the following command: + + + REMOVE DB_INSTRUMENT_DIRECTORY [FORCE] <dir> + + + Where <dir> is the absolute path name of the directory + to delete. The optional FORCE argument can be used to + force the deletion of a non-empty directory and all its content. + + Possible Answers: + + + "OK" - + + if the directory is deleted successfully + + + "ERR:<error-code>:<error-message>" - + + if the given directory does not exist, or + if trying to delete a non-empty directory, + without using the FORCE argument. + + + + + + Examples: + + + C: "REMOVE DB_INSTRUMENT_DIRECTORY FORCE '/Piano Collection'" + S: "OK" + + +
+ +
+ The front-end can retrieve the current amount of + directories in a specific directory by sending the following command: + + + GET DB_INSTRUMENT_DIRECTORIES [RECURSIVE] <dir> + + + Where <dir> should be replaced by the absolute path + name of the directory. If RECURSIVE is specified, the number of + all directories, including those located in subdirectories of the + specified directory, will be returned. + + Possible Answers: + + + The current number of instrument directories + in the specified directory. + "ERR:<error-code>:<error-message>" - + + if the given directory does not exist. + + + + + + Example: + + + C: "GET DB_INSTRUMENT_DIRECTORIES '/'" + S: "2" + + +
+ +
+ The front-end can retrieve the current list of directories + in specific directory by sending the following command: + + + LIST DB_INSTRUMENT_DIRECTORIES [RECURSIVE] <dir> + + + Where <dir> should be replaced by the absolute path + name of the directory. If RECURSIVE is specified, the absolute path names + of all directories, including those located in subdirectories of the + specified directory, will be returned. + + Possible Answers: + + + A comma separated list of all instrument directories + (encapsulated into apostrophes) in the specified directory. + "ERR:<error-code>:<error-message>" - + + if the given directory does not exist. + + + + + Example: + + + C: "LIST DB_INSTRUMENT_DIRECTORIES '/'" + S: "'Piano Collection','Percussion Collection'" + + + + + C: "LIST DB_INSTRUMENT_DIRECTORIES RECURSIVE '/'" + S: "'/Piano Collection','/Piano Collection/Acoustic','/Piano Collection/Acoustic/New','/Percussion Collection'" + + +
+ +
+ The front-end can ask for the current settings of an + instrument directory by sending the following command: + + + GET DB_INSTRUMENT_DIRECTORY INFO <dir> + + + Where <dir> should be replaced by the absolute path + name of the directory the front-end is interested in. + + Possible Answers: + + + LinuxSampler will answer by sending a <CRLF> separated list. + Each answer line begins with the settings category name + followed by a colon and then a space character <SP> and finally + the info character string to that setting category. At the + moment the following categories are defined: + + + + DESCRIPTION - + + A brief description of the directory content. + Note that the character string may contain + escape sequences. + + + CREATED - + + The creation date and time of the directory, + represented in "YYYY-MM-DD HH:MM:SS" format + + + MODIFIED - + + The date and time of the last modification of the + directory, represented in "YYYY-MM-DD HH:MM:SS" format + + + + + + + The mentioned fields above don't have to be in particular order. + + Example: + + + C: "GET DB_INSTRUMENT_DIRECTORY INFO '/Piano Collection'" + S: "DESCRIPTION: Piano collection of instruments in GigaSampler format." +    "CREATED: 2007-02-05 10:23:12" +    "MODIFIED: 2007-04-07 12:50:21" +    "." + + +
+ +
+ The front-end can alter the name of a specific + instrument directory by sending the following command: + + + SET DB_INSTRUMENT_DIRECTORY NAME <dir> <name> + + + Where <dir> is the absolute path name of the directory and + <name> is the new name for that directory. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case the given directory does not exists, + or if a directory with name equal to the new + name already exists. + + + + + + Example: + + + C: "SET DB_INSTRUMENT_DIRECTORY NAME '/Piano Collection/Acustic' 'Acoustic'" + S: "OK" + + +
+ +
+ The front-end can move a specific + instrument directory by sending the following command: + + + MOVE DB_INSTRUMENT_DIRECTORY <dir> <dst> + + + Where <dir> is the absolute path name of the directory + to move and <dst> is the location where the directory will + be moved to. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case a given directory does not exists, + or if a directory with name equal to the name + of the specified directory already exists in + the destination directory. Error is also thrown + when trying to move a directory to a subdirectory + of itself. + + + + + + Example: + + + C: "MOVE DB_INSTRUMENT_DIRECTORY '/Acoustic' '/Piano Collection/Acoustic'" + S: "OK" + + +
+ +
+ The front-end can copy a specific + instrument directory by sending the following command: + + + COPY DB_INSTRUMENT_DIRECTORY <dir> <dst> + + + Where <dir> is the absolute path name of the directory + to copy and <dst> is the location where the directory will + be copied to. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case a given directory does not exists, + or if a directory with name equal to the name + of the specified directory already exists in + the destination directory. Error is also thrown + when trying to copy a directory to a subdirectory + of itself. + + + + + + Example: + + + C: "COPY DB_INSTRUMENT_DIRECTORY '/Piano Collection/Acoustic' '/Acoustic/Pianos'" + S: "OK" + + +
+ +
+ The front-end can alter the description of a specific + instrument directory by sending the following command: + + + SET DB_INSTRUMENT_DIRECTORY DESCRIPTION <dir> <desc> + + + Where <dir> is the absolute path name of the directory and + <desc> is the new description for the directory + (encapsulated into apostrophes, supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case the given directory does not exists. + + + + + + Example: + + + C: "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION '/Piano Collection' 'A collection of piano instruments in various format.'" + S: "OK" + + +
+ +
+ The front-end can search for directories + in specific directory by sending the following command: + + + FIND DB_INSTRUMENT_DIRECTORIES [NON_RECURSIVE] <dir> <criteria-list> + + + Where <dir> should be replaced by the absolute path + name of the directory to search in. If NON_RECURSIVE is specified, the + directories located in subdirectories of the specified directory will not + be searched. <criteria-list> is a list of search criterias + in form of "key1=val1 key2=val2 ...". The following criterias are + allowed: + + NAME='<search-string>' + + Restricts the search to directories, which names + satisfy the supplied search string (encapsulated into apostrophes, + supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + + + CREATED='[<date-after>]..[<date-before>]' + + Restricts the search to directories, which creation + date satisfies the specified period, where <date-after> + and <date-before> are in "YYYY-MM-DD HH:MM:SS" format. + If <date-after> is omitted the search is restricted to + directories created before <date-before>. If + <date-before> is omitted, the search is restricted + to directories created after <date-after>. + + + + MODIFIED='[<date-after>]..[<date-before>]' + + Restricts the search to directories, which + date of last modification satisfies the specified period, where + <date-after> and <date-before> are in "YYYY-MM-DD HH:MM:SS" + format. If <date-after> is omitted the search is restricted to + directories, which are last modified before <date-before>. If + <date-before> is omitted, the search is restricted to directories, + which are last modified after <date-after>. + + + + DESCRIPTION='<search-string>' + + Restricts the search to directories with description + that satisfies the supplied search string + (encapsulated into apostrophes, supporting escape + sequences as described in chapter + "Character Set and Escape Sequences"). + + + + + Where <search-string> is either a regular expression, or a + word list separated with spaces for OR search and with '+' for AND search. + + Possible Answers: + + + A comma separated list with the absolute path names (encapsulated into + apostrophes) of all directories in the specified directory that satisfy + the supplied search criterias. + "ERR:<error-code>:<error-message>" - + + if the given directory does not exist. + + + + + Example: + + + C: "FIND DB_INSTRUMENT_DIRECTORIES '/' NAME='Piano'" + S: "'/Piano Collection'" + + + + + C: "FIND DB_INSTRUMENT_DIRECTORIES '/' CREATED='..2007-04-01 09:30:13'" + S: "'/Piano Collection','/Percussions'" + + +
+ +
+ The front-end can add one or more instruments + to the instruments database by sending the following command: + + + ADD DB_INSTRUMENTS [NON_MODAL] [<mode>] <db_dir> <file_path> [<instr_index>] + + + Where <db_dir> is the absolute path name of a directory + (encapsulated into apostrophes) in the instruments database in which + only the new instruments (that are not already in the database) will + be added, <file_path> is the absolute path name of a file or + directory in the file system (encapsulated into apostrophes). In case + an instrument file is supplied, only the instruments in the specified + file will be added to the instruments database. If the optional + <instr_index> (the index of the instrument within the given file) + is supplied too, then only the specified instrument will be added. + In case a directory is supplied, the instruments in that directory + will be added. The OPTIONAL <mode> argument is only applied + when a directory is provided as <file_path> and specifies how the + scanning will be done and has exactly the following possibilities: + + + "RECURSIVE" - + + All instruments will be processed, including those + in the subdirectories, and the respective subdirectory + tree structure will be recreated in the instruments + database + + + "NON_RECURSIVE" - + + Only the instruments in the specified directory + will be added, the instruments in the subdirectories + will not be processed. + + + "FLAT" - + + All instruments will be processed, including those + in the subdirectories, but the respective subdirectory + structure will not be recreated in the instruments + database. All instruments will be added directly in + the specified database directory. + + + + + + The difference between regular and NON_MODAL versions of the command + is that the regular command returns when the scanning is finished + while NON_MODAL version returns immediately and a background process is launched. + The GET DB_INSTRUMENTS_JOB INFO + command can be used to monitor the scanning progress. + + Possible Answers: + + + "OK" - + + on success when NON_MODAL is not supplied + + + "OK[<job-id>]" - + + on success when NON_MODAL is supplied, where <job-id> + is a numerical ID used to obtain status information about the job progress. + See GET DB_INSTRUMENTS_JOB INFO + + + + "ERR:<error-code>:<error-message>" - + + if an invalid path is specified. + + + + + + Examples: + + + C: "ADD DB_INSTRUMENTS '/Piano Collection' '/home/me/gigs/PMI Bosendorfer 290.gig' 0" + S: "OK" + + +
+ +
+ The front-end can remove a particular instrument + from the instruments database by sending the following command: + + + REMOVE DB_INSTRUMENT <instr_path> + + + Where <instr_path> is the absolute path name + (in the instruments database) of the instrument to remove. + + Possible Answers: + + + "OK" - + + if the instrument is removed successfully + + + "ERR:<error-code>:<error-message>" - + + if the given path does not exist or + is a directory. + + + + + + Examples: + + + C: "REMOVE DB_INSTRUMENT '/Piano Collection/Bosendorfer 290'" + S: "OK" + + +
+ +
+ The front-end can retrieve the current amount of + instruments in a specific directory by sending the following command: + + + GET DB_INSTRUMENTS [RECURSIVE] <dir> + + + Where <dir> should be replaced by the absolute path name + of the directory. If RECURSIVE is specified, the number of all + instruments, including those located in subdirectories of the + specified directory, will be returned. + + Possible Answers: + + + The current number of instruments + in the specified directory. + "ERR:<error-code>:<error-message>" - + + if the given directory does not exist. + + + + + + Example: + + + C: "GET DB_INSTRUMENTS '/Piano Collection'" + S: "2" + + +
+ +
+ The front-end can retrieve the current list of instruments + in specific directory by sending the following command: + + + LIST DB_INSTRUMENTS [RECURSIVE] <dir> + + + Where <dir> should be replaced by the absolute path + name of the directory. If RECURSIVE is specified, the absolute path + names of all instruments, including those located in subdirectories + of the specified directory, will be returned. + + Possible Answers: + + + A comma separated list of all instruments + (encapsulated into apostrophes) in the specified directory. + "ERR:<error-code>:<error-message>" - + + if the given directory does not exist. + + + + + Example: + + + C: "LIST DB_INSTRUMENTS '/Piano Collection'" + S: "'Bosendorfer 290','Steinway D'" + + + + + C: "LIST DB_INSTRUMENTS RECURSIVE '/Piano Collection'" + S: "'/Piano Collection/Bosendorfer 290','/Piano Collection/Steinway D','/Piano Collection/Lite/Free Piano'" + + +
+ +
+ The front-end can ask for the current settings of an + instrument by sending the following command: + + + GET DB_INSTRUMENT INFO <instr_path> + + + Where <instr_path> should be replaced by the absolute path + name of the instrument the front-end is interested in. + + Possible Answers: + + + LinuxSampler will answer by sending a <CRLF> separated list. + Each answer line begins with the settings category name + followed by a colon and then a space character <SP> and finally + the info character string to that setting category. At the + moment the following categories are defined: + + + + INSTRUMENT_FILE - + + File name of the instrument. + Note that the character string may contain + escape sequences. + + + INSTRUMENT_NR - + + Index of the instrument within the file. + + + FORMAT_FAMILY - + + The format family of the instrument. + + + FORMAT_VERSION - + + The format version of the instrument. + + + SIZE - + + The size of the instrument in bytes. + + + CREATED - + + The date and time when the instrument is added + in the instruments database, represented in + "YYYY-MM-DD HH:MM:SS" format + + + MODIFIED - + + The date and time of the last modification of the + instrument's database settings, represented in + "YYYY-MM-DD HH:MM:SS" format + + + DESCRIPTION - + + A brief description of the instrument. + Note that the character string may contain + escape sequences. + + + IS_DRUM - + + either true or false, determines whether the + instrument is a drumkit or a chromatic instrument + + + PRODUCT - + + The product title of the instrument. + Note that the character string may contain + escape sequences. + + + ARTISTS - + + Lists the artist names. + Note that the character string may contain + escape sequences. + + + KEYWORDS - + + Provides a list of keywords that refer to the instrument. + Keywords are separated with semicolon and blank. + Note that the character string may contain + escape sequences. + + + + + + + The mentioned fields above don't have to be in particular order. + + Example: + + + C: "GET DB_INSTRUMENT INFO '/Piano Collection/Bosendorfer 290'" + S: "INSTRUMENT_FILE: /home/me/gigs/Bosendorfer 290.gig" +    "INSTRUMENT_NR: 0" +    "FORMAT_FAMILY: GIG" +    "FORMAT_VERSION: 2" +    "SIZE: 2050871870" +    "CREATED: 2007-02-05 10:23:12" +    "MODIFIED: 2007-04-07 12:50:21" +    "DESCRIPTION: " +    "IS_DRUM: false" +    "PRODUCT: GRANDIOSO Bosendorfer 290" +    "ARTISTS: Post Musical Instruments" +    "KEYWORDS: Bosendorfer" +    "." + + +
+ +
+ The front-end can alter the name of a specific + instrument by sending the following command: + + + SET DB_INSTRUMENT NAME <instr> <name> + + + Where <instr> is the absolute path name of the instrument and + <name> is the new name for that instrument. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case the given instrument does not exists, + or if an instrument with name equal to the new + name already exists. + + + + + + Example: + + + C: "SET DB_INSTRUMENT NAME '/Piano Collection/Bosendorfer' 'Bosendorfer 290'" + S: "OK" + + +
+ +
+ The front-end can move a specific instrument to another directory by + sending the following command: + + + MOVE DB_INSTRUMENT <instr> <dst> + + + Where <instr> is the absolute path name of the instrument + to move and <dst> is the directory where the instrument will + be moved to. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case the given instrument does not exists, + or if an instrument with name equal to the name of the + specified instrument already exists in the destination + directory. + + + + + + Example: + + + C: "MOVE DB_INSTRUMENT '/Piano Collection/Bosendorfer 290' '/Piano Collection/Acoustic'" + S: "OK" + + +
+ +
+ The front-end can copy a specific instrument to another directory by + sending the following command: + + + COPY DB_INSTRUMENT <instr> <dst> + + + Where <instr> is the absolute path name of the instrument + to copy and <dst> is the directory where the instrument will + be copied to. + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case the given instrument does not exists, + or if an instrument with name equal to the name of the + specified instrument already exists in the destination + directory. + + + + + + Example: + + + C: "COPY DB_INSTRUMENT '/Piano Collection/Bosendorfer 290' '/Acoustic/Pianos/'" + S: "OK" + + +
+ +
+ The front-end can alter the description of a specific + instrument by sending the following command: + + + SET DB_INSTRUMENT DESCRIPTION <instr> <desc> + + + Where <instr> is the absolute path name of the instrument and + <desc> is the new description for the instrument + (encapsulated into apostrophes, supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + in case the given instrument does not exists. + + + + + + Example: + + + C: "SET DB_INSTRUMENT DESCRIPTION '/Piano Collection/Acoustic/Bosendorfer 290' 'No comment :)'" + S: "OK" + + +
+ +
+ The front-end can search for instruments + in specific directory by sending the following command: + + + FIND DB_INSTRUMENTS [NON_RECURSIVE] <dir> <criteria-list> + + + Where <dir> should be replaced by the absolute path + name of the directory to search in. If NON_RECURSIVE is specified, the + directories located in subdirectories of the specified directory will not + be searched. <criteria-list> is a list of search criterias + in form of "key1=val1 key2=val2 ...". The following criterias are + allowed: + + NAME='<search-string>' + + Restricts the search to instruments, which names + satisfy the supplied search string (encapsulated into apostrophes, + supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + + + SIZE=[<min>]..[<max>] + + Restricts the search to instruments, which + size is in the specified range. If <min> is omitted, + the search results are restricted to instruments with size less then + or equal to <max>. If <max> is omitted, the + search is restricted to instruments with size greater then + or equal to <min>. + + + + CREATED='[<date-after>]..[<date-before>]' + + Restricts the search to instruments, which creation + date satisfies the specified period, where <date-after> + and <date-before> are in "YYYY-MM-DD HH:MM:SS" format. + If <date-after> is omitted the search is restricted to + instruments created before <date-before>. If + <date-before> is omitted, the search is restricted + to instruments created after <date-after>. + + + + MODIFIED='[<date-after>]..[<date-before>]' + + Restricts the search to instruments, which + date of last modification satisfies the specified period, where + <date-after> and <date-before> are in "YYYY-MM-DD HH:MM:SS" + format. If <date-after> is omitted the search is restricted to + instruments, which are last modified before <date-before>. If + <date-before> is omitted, the search is restricted to instruments, + which are last modified after <date-after>. + + + + DESCRIPTION='<search-string>' + + Restricts the search to instruments with description + that satisfies the supplied search string (encapsulated into apostrophes, + supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + + + PRODUCT='<search-string>' + + Restricts the search to instruments with product info + that satisfies the supplied search string (encapsulated into apostrophes, + supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + + + ARTISTS='<search-string>' + + Restricts the search to instruments with artists info + that satisfies the supplied search string (encapsulated into apostrophes, + supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + + + KEYWORDS='<search-string>' + + Restricts the search to instruments with keyword list + that satisfies the supplied search string (encapsulated into apostrophes, + supporting escape sequences as described in chapter + "Character Set and Escape Sequences"). + + + + IS_DRUM=true | false + + Either true or false. Restricts the search to + drum kits or chromatic instruments. + + + + FORMAT_FAMILIES='<format-list>' + + Restricts the search to instruments of the supplied format families, + where <format-list> is a comma separated list of format families. + + + + + Where <search-string> is either a regular expression, or a + word list separated with spaces for OR search and with '+' for AND search. + + Possible Answers: + + + A comma separated list with the absolute path names (encapsulated into + apostrophes) of all instruments in the specified directory that satisfy + the supplied search criterias. + "ERR:<error-code>:<error-message>" - + + if the given directory does not exist. + + + + + Example: + + + C: "FIND DB_INSTRUMENTS '/Piano Collection' NAME='bosendorfer+290'" + S: "'/Piano Collection/Bosendorfer 290'" + + + + + C: "FIND DB_INSTRUMENTS '/Piano Collection' CREATED='2007-04-01 09:30:13..'" + S: "'/Piano Collection/Bosendorfer 290','/Piano Collection/Steinway D'" + + +
+ +
+ The front-end can ask for the current status of a + particular database instruments job by sending the following command: + + + GET DB_INSTRUMENTS_JOB INFO <job-id> + + + Where <job-id> should be replaced by the numerical ID + of the job the front-end is interested in. + + Possible Answers: + + + LinuxSampler will answer by sending a <CRLF> separated list. + Each answer line begins with the settings category name + followed by a colon and then a space character <SP> and finally + the info character string to that setting category. At the + moment the following categories are defined: + + + + FILES_TOTAL - + + The total number of files scheduled for scanning + + + FILES_SCANNED - + + The current number of scanned files + + + SCANNING - + + The absolute path name of the file which is currently + being scanned + + + STATUS - + + An integer value between 0 and 100 indicating the + scanning progress percentage of the file which is + currently being scanned + + + + + + + The mentioned fields above don't have to be in particular order. + + Example: + + + C: "GET DB_INSTRUMENTS_JOB INFO 2" + S: "FILES_TOTAL: 12" +    "FILES_SCANNED: 7" +    "SCANNING: /home/me/gigs/Bosendorfer 290.gig" +    "STATUS: 42" +    "." + + +
+ +
+ The front-end can remove all instruments and directories and re-create + the instruments database structure (e.g., in case of a database corruption) + by sending the following command: + + + FORMAT INSTRUMENTS_DB + + + + Possible Answers: + + + "OK" - + + on success + + + "ERR:<error-code>:<error-message>" - + + If the formatting of the instruments database + failed. + + + + +
+ +
+ + + +
+ The sampler allows to edit instruments while playing with the + sampler by spawning an external (3rd party) instrument editor + application for a given instrument. The 3rd party instrument + editor applications have to place a respective plugin DLL file + into the sampler's plugins directory. The sampler will + automatically try to load all plugin DLLs in that directory on + startup and only on startup! + At the moment there is only one command for this feature set, + but this will most probably change in future. + +
+ The front-end can request to open an appropriate instrument + editor application by sending the following command: + + + EDIT INSTRUMENT <sampler-channel> + + + Where <sampler-channel> should be replaced by the + number of the sampler channel as given by the + "ADD CHANNEL" + or "LIST CHANNELS" + command. + + The sampler will try to ask all registered instrument + editors (or to be more specific: their sampler plugins) + whether they are capable to handle the instrument on the + given sampler channel. The sampler will simply use the first + instrument editor application which replied with a positive + answer and spawn that instrument editor application within + the sampler's process and provide that application access + to the instrument's data structures, so both applications + can share and access the same instruments data at the same + time, thus allowing to immediately hear changes with the + sampler made by the instrument editor. + + Note: consequently instrument editors are always spawned + locally on the same machine where the sampler is running + on! + + Possible Answers: + + + "OK" - + + when an appropriate instrument editor was + launched + + + "WRN:<warning-code>:<warning-message>" - + + when an appropriate instrument editor was + launched, but there are noteworthy issues + + + "ERR:<error-code>:<error-message>" - + + when an appropriate instrument editor + could not be launched + + + + + + Examples: + + + C: "EDIT INSTRUMENT 0" + S: "OK" + + +
-
- TODO: will soon automatically included from src/network/lscp.y, - meanwhile have a look at that file to get the exact definition of - the command syntax. + +
+ The grammar of the control protocol as descibed in + is defined below using Backus-Naur Form (BNF as described in ) + where applicable. + + + + +input = + + line LF + + / line CR LF + + + +line = + + /* epsilon (empty line ignored) */ + + / comment + + / command + + / error + + + +comment = + + '#' + + / comment '#' + + / comment SP + + / comment number + + / comment string + + + +command = + + ADD SP add_instruction + + / MAP SP map_instruction + + / UNMAP SP unmap_instruction + + / GET SP get_instruction + + / CREATE SP create_instruction + + / DESTROY SP destroy_instruction + + / LIST SP list_instruction + + / LOAD SP load_instruction + + / REMOVE SP remove_instruction + + / SET SP set_instruction + + / SUBSCRIBE SP subscribe_event + + / UNSUBSCRIBE SP unsubscribe_event + + / RESET SP reset_instruction + + / CLEAR SP clear_instruction + + / FIND SP find_instruction + + / MOVE SP move_instruction + + / COPY SP copy_instruction + + / EDIT SP edit_instruction + + / FORMAT SP format_instruction + + / RESET + + / QUIT + + + +add_instruction = + + CHANNEL + + / DB_INSTRUMENT_DIRECTORY SP db_path + + / DB_INSTRUMENTS SP NON_MODAL SP scan_mode SP db_path SP filename + + / DB_INSTRUMENTS SP scan_mode SP db_path SP filename + + / DB_INSTRUMENTS SP NON_MODAL SP db_path SP filename + + / DB_INSTRUMENTS SP NON_MODAL SP db_path SP filename SP instrument_index + + / DB_INSTRUMENTS SP db_path SP filename + + / DB_INSTRUMENTS SP db_path SP filename SP instrument_index + + / MIDI_INSTRUMENT_MAP + + / MIDI_INSTRUMENT_MAP SP map_name + + + +subscribe_event = + + AUDIO_OUTPUT_DEVICE_COUNT + + / AUDIO_OUTPUT_DEVICE_INFO + + / MIDI_INPUT_DEVICE_COUNT + + / MIDI_INPUT_DEVICE_INFO + + / CHANNEL_COUNT + + / VOICE_COUNT + + / STREAM_COUNT + + / BUFFER_FILL + + / CHANNEL_INFO + + / FX_SEND_COUNT + + / FX_SEND_INFO + + / MIDI_INSTRUMENT_MAP_COUNT + + / MIDI_INSTRUMENT_MAP_INFO + + / MIDI_INSTRUMENT_COUNT + + / MIDI_INSTRUMENT_INFO + + / DB_INSTRUMENT_DIRECTORY_COUNT + + / DB_INSTRUMENT_DIRECTORY_INFO + + / DB_INSTRUMENT_COUNT + + / DB_INSTRUMENT_INFO + + / DB_INSTRUMENTS_JOB_INFO + + / MISCELLANEOUS + + / TOTAL_VOICE_COUNT + + / GLOBAL_INFO + + + +unsubscribe_event = + + AUDIO_OUTPUT_DEVICE_COUNT + + / AUDIO_OUTPUT_DEVICE_INFO + + / MIDI_INPUT_DEVICE_COUNT + + / MIDI_INPUT_DEVICE_INFO + + / CHANNEL_COUNT + + / VOICE_COUNT + + / STREAM_COUNT + + / BUFFER_FILL + + / CHANNEL_INFO + + / FX_SEND_COUNT + + / FX_SEND_INFO + + / MIDI_INSTRUMENT_MAP_COUNT + + / MIDI_INSTRUMENT_MAP_INFO + + / MIDI_INSTRUMENT_COUNT + + / MIDI_INSTRUMENT_INFO + + / DB_INSTRUMENT_DIRECTORY_COUNT + + / DB_INSTRUMENT_DIRECTORY_INFO + + / DB_INSTRUMENT_COUNT + + / DB_INSTRUMENT_INFO + + / DB_INSTRUMENTS_JOB_INFO + + / MISCELLANEOUS + + / TOTAL_VOICE_COUNT + + / GLOBAL_INFO + + + +map_instruction = + + MIDI_INSTRUMENT SP modal_arg midi_map SP midi_bank SP midi_prog SP engine_name SP filename SP instrument_index SP volume_value + + / MIDI_INSTRUMENT SP modal_arg midi_map SP midi_bank SP midi_prog SP engine_name SP filename SP instrument_index SP volume_value SP instr_load_mode + + / MIDI_INSTRUMENT SP modal_arg midi_map SP midi_bank SP midi_prog SP engine_name SP filename SP instrument_index SP volume_value SP entry_name + + / MIDI_INSTRUMENT SP modal_arg midi_map SP midi_bank SP midi_prog SP engine_name SP filename SP instrument_index SP volume_value SP instr_load_mode SP entry_name + + + +unmap_instruction = + + MIDI_INSTRUMENT SP midi_map SP midi_bank SP midi_prog + + + +remove_instruction = + + CHANNEL SP sampler_channel + + / MIDI_INSTRUMENT_MAP SP midi_map + + / MIDI_INSTRUMENT_MAP SP ALL + + / DB_INSTRUMENT_DIRECTORY SP FORCE SP db_path + + / DB_INSTRUMENT_DIRECTORY SP db_path + + / DB_INSTRUMENT SP db_path + + + +get_instruction = + + AVAILABLE_ENGINES + + / AVAILABLE_MIDI_INPUT_DRIVERS + + / MIDI_INPUT_DRIVER SP INFO SP string + + / MIDI_INPUT_DRIVER_PARAMETER SP INFO SP string SP string + + / MIDI_INPUT_DRIVER_PARAMETER SP INFO SP string SP string SP key_val_list + + / AVAILABLE_AUDIO_OUTPUT_DRIVERS + + / AUDIO_OUTPUT_DRIVER SP INFO SP string + + / AUDIO_OUTPUT_DRIVER_PARAMETER SP INFO SP string SP string + + / AUDIO_OUTPUT_DRIVER_PARAMETER SP INFO SP string SP string SP key_val_list + + / AUDIO_OUTPUT_DEVICES + + / MIDI_INPUT_DEVICES + + / AUDIO_OUTPUT_DEVICE SP INFO SP number + + / MIDI_INPUT_DEVICE SP INFO SP number + + / MIDI_INPUT_PORT SP INFO SP number SP number + + / MIDI_INPUT_PORT_PARAMETER SP INFO SP number SP number SP string + + / AUDIO_OUTPUT_CHANNEL SP INFO SP number SP number + + / AUDIO_OUTPUT_CHANNEL_PARAMETER SP INFO SP number SP number SP string + + / CHANNELS + + / CHANNEL SP INFO SP sampler_channel + + / CHANNEL SP BUFFER_FILL SP buffer_size_type SP sampler_channel + + / CHANNEL SP STREAM_COUNT SP sampler_channel + + / CHANNEL SP VOICE_COUNT SP sampler_channel + + / ENGINE SP INFO SP engine_name + + / SERVER SP INFO + + / TOTAL_VOICE_COUNT + + / TOTAL_VOICE_COUNT_MAX + + / MIDI_INSTRUMENTS SP midi_map + + / MIDI_INSTRUMENTS SP ALL + + / MIDI_INSTRUMENT SP INFO SP midi_map SP midi_bank SP midi_prog + + / MIDI_INSTRUMENT_MAPS + + / MIDI_INSTRUMENT_MAP SP INFO SP midi_map + + / FX_SENDS SP sampler_channel + + / FX_SEND SP INFO SP sampler_channel SP fx_send_id + + / DB_INSTRUMENT_DIRECTORIES SP RECURSIVE SP db_path + + / DB_INSTRUMENT_DIRECTORIES SP db_path + + / DB_INSTRUMENT_DIRECTORY SP INFO SP db_path + + / DB_INSTRUMENTS SP RECURSIVE SP db_path + + / DB_INSTRUMENTS SP db_path + + / DB_INSTRUMENT SP INFO SP db_path + + / DB_INSTRUMENTS_JOB SP INFO SP number + + / VOLUME + + + +set_instruction = + + AUDIO_OUTPUT_DEVICE_PARAMETER SP number SP string '=' param_val_list + + / AUDIO_OUTPUT_CHANNEL_PARAMETER SP number SP number SP string '=' param_val_list + + / MIDI_INPUT_DEVICE_PARAMETER SP number SP string '=' param_val_list + + / MIDI_INPUT_PORT_PARAMETER SP number SP number SP string '=' NONE + + / MIDI_INPUT_PORT_PARAMETER SP number SP number SP string '=' param_val_list + + / CHANNEL SP set_chan_instruction + + / MIDI_INSTRUMENT_MAP SP NAME SP midi_map SP map_name + + / FX_SEND SP NAME SP sampler_channel SP fx_send_id SP fx_send_name + + / FX_SEND SP AUDIO_OUTPUT_CHANNEL SP sampler_channel SP fx_send_id SP audio_channel_index SP audio_channel_index + + / FX_SEND SP MIDI_CONTROLLER SP sampler_channel SP fx_send_id SP midi_ctrl + + / FX_SEND SP LEVEL SP sampler_channel SP fx_send_id SP volume_value + + / DB_INSTRUMENT_DIRECTORY SP NAME SP db_path SP stringval_escaped + + / DB_INSTRUMENT_DIRECTORY SP DESCRIPTION SP db_path SP stringval_escaped + + / DB_INSTRUMENT SP NAME SP db_path SP stringval_escaped + + / DB_INSTRUMENT SP DESCRIPTION SP db_path SP stringval_escaped + + / ECHO SP boolean + + / VOLUME SP volume_value + + + +create_instruction = + + AUDIO_OUTPUT_DEVICE SP string SP key_val_list + + / AUDIO_OUTPUT_DEVICE SP string + + / MIDI_INPUT_DEVICE SP string SP key_val_list + + / MIDI_INPUT_DEVICE SP string + + / FX_SEND SP sampler_channel SP midi_ctrl + + / FX_SEND SP sampler_channel SP midi_ctrl SP fx_send_name + + + +reset_instruction = + + CHANNEL SP sampler_channel + + + +clear_instruction = + + MIDI_INSTRUMENTS SP midi_map + + / MIDI_INSTRUMENTS SP ALL + + + +find_instruction = + + DB_INSTRUMENTS SP NON_RECURSIVE SP db_path SP query_val_list + + / DB_INSTRUMENTS SP db_path SP query_val_list + + / DB_INSTRUMENT_DIRECTORIES SP NON_RECURSIVE SP db_path SP query_val_list + + / DB_INSTRUMENT_DIRECTORIES SP db_path SP query_val_list + + + +move_instruction = + + DB_INSTRUMENT_DIRECTORY SP db_path SP db_path + + / DB_INSTRUMENT SP db_path SP db_path + + + +copy_instruction = + + DB_INSTRUMENT_DIRECTORY SP db_path SP db_path + + / DB_INSTRUMENT SP db_path SP db_path + + + +destroy_instruction = + + AUDIO_OUTPUT_DEVICE SP number + + / MIDI_INPUT_DEVICE SP number + + / FX_SEND SP sampler_channel SP fx_send_id + + + +load_instruction = + + INSTRUMENT SP load_instr_args + + / ENGINE SP load_engine_args + + + +set_chan_instruction = + + AUDIO_OUTPUT_DEVICE SP sampler_channel SP device_index + + / AUDIO_OUTPUT_CHANNEL SP sampler_channel SP audio_channel_index SP audio_channel_index + + / AUDIO_OUTPUT_TYPE SP sampler_channel SP audio_output_type_name + + / MIDI_INPUT SP sampler_channel SP device_index SP midi_input_port_index SP midi_input_channel_index + + / MIDI_INPUT_DEVICE SP sampler_channel SP device_index + + / MIDI_INPUT_PORT SP sampler_channel SP midi_input_port_index + + / MIDI_INPUT_CHANNEL SP sampler_channel SP midi_input_channel_index + + / MIDI_INPUT_TYPE SP sampler_channel SP midi_input_type_name + + / VOLUME SP sampler_channel SP volume_value + + / MUTE SP sampler_channel SP boolean + + / SOLO SP sampler_channel SP boolean + + / MIDI_INSTRUMENT_MAP SP sampler_channel SP midi_map + + / MIDI_INSTRUMENT_MAP SP sampler_channel SP NONE + + / MIDI_INSTRUMENT_MAP SP sampler_channel SP DEFAULT + + + +edit_instruction = + + INSTRUMENT SP sampler_channel + + + +format_instruction = + + INSTRUMENTS_DB + + + +modal_arg = + + /* epsilon (empty argument) */ + + / NON_MODAL SP + + + +key_val_list = + + string '=' param_val_list + + / key_val_list SP string '=' param_val_list + + + +buffer_size_type = + + BYTES + + / PERCENTAGE + + + +list_instruction = + + AUDIO_OUTPUT_DEVICES + + / MIDI_INPUT_DEVICES + + / CHANNELS + + / AVAILABLE_ENGINES + + / AVAILABLE_MIDI_INPUT_DRIVERS + + / AVAILABLE_AUDIO_OUTPUT_DRIVERS + + / MIDI_INSTRUMENTS SP midi_map + + / MIDI_INSTRUMENTS SP ALL + + / MIDI_INSTRUMENT_MAPS + + / FX_SENDS SP sampler_channel + + / DB_INSTRUMENT_DIRECTORIES SP RECURSIVE SP db_path + + / DB_INSTRUMENT_DIRECTORIES SP db_path + + / DB_INSTRUMENTS SP RECURSIVE SP db_path + + / DB_INSTRUMENTS SP db_path + + + +load_instr_args = + + filename SP instrument_index SP sampler_channel + + / NON_MODAL SP filename SP instrument_index SP sampler_channel + + + +load_engine_args = + + engine_name SP sampler_channel + + + +instr_load_mode = + + ON_DEMAND + + / ON_DEMAND_HOLD + + / PERSISTENT + + + +device_index = + + number + + + +audio_channel_index = + + number + + + +audio_output_type_name = + + string + + + +midi_input_port_index = + + number + + + +midi_input_channel_index = + + number + + / ALL + + + +midi_input_type_name = + + string + + + +midi_map = + + number + + + +midi_bank = + + number + + + +midi_prog = + + number + + + +midi_ctrl = + + number + + + +volume_value = + + dotnum + + / number + + + +sampler_channel = + + number + + + +instrument_index = + + number + + + +fx_send_id = + + number + + + +engine_name = + + string + + + +filename = + + path + + + +db_path = + + path + + + +map_name = + + stringval + + + +entry_name = + + stringval + + + +fx_send_name = + + stringval + + + +param_val_list = + + param_val + + / param_val_list','param_val + + + +param_val = + + string + + / stringval + + / number + + / dotnum + + + +query_val_list = + + string '=' query_val + + / query_val_list SP string '=' query_val + + + +query_val = + + textval_escaped + + / stringval_escaped + + + +scan_mode = + + RECURSIVE + + / NON_RECURSIVE + + / FLAT + + + + + + +
+ Older versions of this protocol up to and including v1.1 only + supported the standard ASCII character set (ASCII code 0 - 127) + , all younger versions of this protocol + however support the Extended ASCII character set (ASCII code + 0 - 255). The same group of younger protocols also support + escape sequences, but only for certain, explicitly declared + parts of the protocol. The supported escape sequences are + defined as follows: + + ASCII Character Sequence + Translated into (Name) + \n new line + \r carriage return + \f form feed + \t horizontal tab + \v vertical tab + \' apostrophe + \" quotation mark + \\ backslash + \OOO three digit octal ASCII code of the character + \xHH two digit hex ASCII code of the character + + Notice: due to the transition of certain parts of the + protocol which now support escape sequences, a slight backward + incompatibility to protocols version v1.1 and younger has been + introduced. The only difference is that in parts of the protocol + where escape characters are now supported, a backslash characters + MUST be escaped as well (that is as double backslash), whereas + in the old versions a single backslash was sufficient. +
-
+
This chapter will describe all currently defined events supported by LinuxSampler. -
+
+ Client may want to be notified when the total number of audio output devices on the + back-end changes by issuing the following command: + + + SUBSCRIBE AUDIO_OUTPUT_DEVICE_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:AUDIO_OUTPUT_DEVICE_COUNT:<devices>" + + + where <devices> will be replaced by the new number + of audio output devices. +
+ +
+ Client may want to be notified when changes were made to audio output devices on the + back-end by issuing the following command: + + + SUBSCRIBE AUDIO_OUTPUT_DEVICE_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:AUDIO_OUTPUT_DEVICE_INFO:<device-id>" + + + where <device-id> will be replaced by the numerical ID of the audio output device, + which settings has been changed. The front-end will have to send + the respective command to actually get the audio output device info. Because these messages + will be triggered by LSCP commands issued by other clients rather than real + time events happening on the server, it is believed that an empty notification + message is sufficient here. +
+ +
+ Client may want to be notified when the total number of MIDI input devices on the + back-end changes by issuing the following command: + + + SUBSCRIBE MIDI_INPUT_DEVICE_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:MIDI_INPUT_DEVICE_COUNT:<devices>" + + + where <devices> will be replaced by the new number + of MIDI input devices. +
+ +
+ Client may want to be notified when changes were made to MIDI input devices on the + back-end by issuing the following command: + + + SUBSCRIBE MIDI_INPUT_DEVICE_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:MIDI_INPUT_DEVICE_INFO:<device-id>" + + + where <device-id> will be replaced by the numerical ID of the MIDI input device, + which settings has been changed. The front-end will have to send + the respective command to actually get the MIDI input device info. Because these messages + will be triggered by LSCP commands issued by other clients rather than real + time events happening on the server, it is believed that an empty notification + message is sufficient here. +
+ +
Client may want to be notified when the total number of channels on the back-end changes by issuing the following command: - SUBSCRIBE CHANNELS + SUBSCRIBE CHANNEL_COUNT Server will start sending the following notification messages: - "NOTIFY:CHANNELS:<channels>" + "NOTIFY:CHANNEL_COUNT:<channels>" where <channels> will be replaced by the new number of sampler channels.
-
+
Client may want to be notified when the number of voices on the back-end changes by issuing the following command: @@ -3099,15 +6922,15 @@ Server will start sending the following notification messages: - "NOTIFY:VOICE_COUNT:<sampler-channel> <voices>> + "NOTIFY:VOICE_COUNT:<sampler-channel> <voices>" where <sampler-channel> will be replaced by the sampler channel the - voice count change occurred and <voices>> by the new number of + voice count change occurred and <voices> by the new number of active voices on that channel.
-
+
Client may want to be notified when the number of streams on the back-end changes by issuing the following command: SUBSCRIBE STREAM_COUNT @@ -3126,9 +6949,9 @@ active disk streams on that channel.
-
- Client may want to be notified when the number of streams on the back-end - changes by issuing the following command: +
+ Client may want to be notified when the buffer fill state of a disk stream + on the back-end changes by issuing the following command: SUBSCRIBE BUFFER_FILL @@ -3141,23 +6964,24 @@ where <sampler-channel> will be replaced by the sampler channel the - buffer fill state change occurred and <fill-data> will be replaced by the - buffer fill data for this channel as described in 4.4.12 as if the - "GET CHANNEL BUFFER_FILL PERCENTAGE" was issued on this channel. + buffer fill state change occurred on and <fill-data> will be replaced by the + buffer fill data for this channel as described in + as if the + "GET CHANNEL BUFFER_FILL PERCENTAGE" command was issued on this channel.
-
+
Client may want to be notified when changes were made to sampler channels on the - back-end changes by issuing the following command: + back-end by issuing the following command: - SUBSCRIBE INFO + SUBSCRIBE CHANNEL_INFO Server will start sending the following notification messages: - "NOTIFY:INFO:<sampler-channel>" + "NOTIFY:CHANNEL_INFO:<sampler-channel>" where <sampler-channel> will be replaced by the sampler channel the @@ -3168,7 +6992,290 @@ message is sufficient here.
-
+
+ Client may want to be notified when the number of effect sends on + a particular sampler channel is changed by issuing the following command: + + + SUBSCRIBE FX_SEND_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:FX_SEND_COUNT:<channel-id> <fx-sends>" + + + where <channel-id> will be replaced by the numerical ID of the sampler + channel, on which the effect sends number is changed and <fx-sends> will + be replaced by the new number of effect sends on that channel. +
+ +
+ Client may want to be notified when changes were made to effect sends on a + a particular sampler channel by issuing the following command: + + + SUBSCRIBE FX_SEND_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:FX_SEND_INFO:<channel-id> <fx-send-id>" + + + where <channel-id> will be replaced by the numerical ID of the sampler + channel, on which an effect send entity is changed and <fx-send-id> will + be replaced by the numerical ID of the changed effect send. +
+ +
+ Client may want to be notified when the total number of voices on the + back-end changes by issuing the following command: + + + SUBSCRIBE TOTAL_VOICE_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:TOTAL_VOICE_COUNT:<voices>" + + + where <voices> will be replaced by the new number of + all currently active voices. +
+ +
+ Client may want to be notified when the number of MIDI instrument maps on the + back-end changes by issuing the following command: + + + SUBSCRIBE MIDI_INSTRUMENT_MAP_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:MIDI_INSTRUMENT_MAP_COUNT:<maps>" + + + where <maps> will be replaced by the new number + of MIDI instrument maps. +
+ +
+ Client may want to be notified when changes were made to MIDI instrument maps on the + back-end by issuing the following command: + + + SUBSCRIBE MIDI_INSTRUMENT_MAP_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:MIDI_INSTRUMENT_MAP_INFO:<map-id>" + + + where <map-id> will be replaced by the numerical ID of the MIDI instrument map, + for which information changes occurred. The front-end will have to send + the respective command to actually get the MIDI instrument map info. Because these messages + will be triggered by LSCP commands issued by other clients rather than real + time events happening on the server, it is believed that an empty notification + message is sufficient here. +
+ +
+ Client may want to be notified when the number of MIDI instrument maps on the + back-end changes by issuing the following command: + + + SUBSCRIBE MIDI_INSTRUMENT_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:MIDI_INSTRUMENT_COUNT:<map-id> <instruments>" + + + where <map-id> is the numerical ID of the MIDI instrument map, in which + the nuber of instruments has changed and <instruments> will be replaced by + the new number of MIDI instruments in the specified map. +
+ +
+ Client may want to be notified when changes were made to MIDI instruments on the + back-end by issuing the following command: + + + SUBSCRIBE MIDI_INSTRUMENT_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:MIDI_INSTRUMENT_INFO:<map-id> <bank> <program>" + + + where <map-id> will be replaced by the numerical ID of the MIDI instrument map, + in which a MIDI instrument is changed. <bank> and <program> specifies + the location of the changed MIDI instrument in the map. The front-end will have to send + the respective command to actually get the MIDI instrument info. Because these messages + will be triggered by LSCP commands issued by other clients rather than real + time events happening on the server, it is believed that an empty notification + message is sufficient here. +
+ +
+ Client may want to be notified when changes to the global settings + of the sampler were made by issuing the following command: + + + SUBSCRIBE GLOBAL_INFO + + + Server will start sending the following types of notification messages: + + + "NOTIFY:GLOBAL_INFO:VOLUME <volume>" - Notifies that the + golbal volume of the sampler is changed, where <volume> will be + replaced by the optional dotted floating point value, reflecting the + new global volume parameter. + + +
+ +
+ Client may want to be notified when the number of instrument + directories in a particular directory in the instruments database + is changed by issuing the following command: + + + SUBSCRIBE DB_INSTRUMENT_DIRECTORY_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:DB_INSTRUMENT_DIRECTORY_COUNT:<dir-path>" + + + where <dir-path> will be replaced by the absolute path + name of the directory in the instruments database, + in which the number of directories is changed. + Note that when a non-empty directory is removed, this event + is not sent for the subdirectories in that directory. +
+ +
+ Client may want to be notified when changes were made to directories + in the instruments database by issuing the following command: + + + SUBSCRIBE DB_INSTRUMENT_DIRECTORY_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:DB_INSTRUMENT_DIRECTORY_INFO:<dir-path>" + + + where <dir-path> will be replaced by the absolute path name + of the directory, for which information changes occurred. The front-end will have to send + the respective command to actually get the updated directory info. Because these messages + will be triggered by LSCP commands issued by other clients rather than real + time events happening on the server, it is believed that an empty notification + message is sufficient here. + + + "NOTIFY:DB_INSTRUMENT_DIRECTORY_INFO:NAME <old-dir-path> <new-name>" + + + where <old-dir-path> is the old absolute path name of the directory + (encapsulated into apostrophes), which name is changes and <new-name> is + the new name of the directory, encapsulated into apostrophes. +
+ +
+ Client may want to be notified when the number of instruments + in a particular directory in the instruments database + is changed by issuing the following command: + + + SUBSCRIBE DB_INSTRUMENT_COUNT + + + Server will start sending the following notification messages: + + + "NOTIFY:DB_INSTRUMENT_COUNT:<dir-path>" + + + where <dir-path> will be replaced by the absolute path + name of the directory in the instruments database, + in which the number of instruments is changed. + Note that when a non-empty directory is removed, this event + is not sent for the instruments in that directory. +
+ +
+ Client may want to be notified when changes were made to instruments + in the instruments database by issuing the following command: + + + SUBSCRIBE DB_INSTRUMENT_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:DB_INSTRUMENT_INFO:<instr-path>" + + + where <instr-path> will be replaced by the absolute path name + of the instrument, which settings are changed. The front-end will have to send + the respective command to actually get the updated directory info. Because these messages + will be triggered by LSCP commands issued by other clients rather than real + time events happening on the server, it is believed that an empty notification + message is sufficient here. + + + "NOTIFY:DB_INSTRUMENT_INFO:NAME <old-instr-path> <new-name>" + + + where <old-instr-path> is the old absolute path name of the instrument + (encapsulated into apostrophes), which name is changes and <new-name> is + the new name of the instrument, encapsulated into apostrophes. +
+ +
+ Client may want to be notified when the status of particular database + instruments job is changed by issuing the following command: + + + SUBSCRIBE DB_INSTRUMENTS_JOB_INFO + + + Server will start sending the following notification messages: + + + "NOTIFY:DB_INSTRUMENTS_JOB_INFO:<job-id>" + + + where <job-id> will be replaced by the numerical ID of the job, + which status is changed. The front-end will have to send the respective + command to actually get the status info. Because these messages + will be triggered by LSCP commands issued by other clients rather than real + time events happening on the server, it is believed that an empty notification + message is sufficient here. +
+ +
Client may want to be notified of miscellaneous and debugging events occurring at the server by issuing the following command: @@ -3204,6 +7311,7 @@ Rui Nuno Capela Vladimir Senkov Mark Knecht + Grigor Iliev
@@ -3211,7 +7319,51 @@ - &rfc2119; + + + + Key words for use in RFCs to Indicate Requirement Levels + + Harvard University + + + + + + + + TRANSMISSION CONTROL PROTOCOL + + Defense Advanced Research Projects Agency + + + + + + + + Augmented BNF for Syntax Specifications + + Internet Mail Consortium + + + Demon Internet Ltd + + + + + + + + ASCII format for Network Interchange + + UCLA + + + + + +