16 |
to an annoying "missing Normative/Informative References" error message --> |
to an annoying "missing Normative/Informative References" error message --> |
17 |
<?rfc strict="no" ?> |
<?rfc strict="no" ?> |
18 |
|
|
19 |
<rfc category="std" ipr="full3978" docName="LSCP 1.3"> |
<rfc category="std" ipr="full3978" docName="LSCP 1.4"> |
20 |
<front> |
<front> |
21 |
<title>LinuxSampler Control Protocol</title> |
<title>LinuxSampler Control Protocol</title> |
22 |
<author initials='C.S.' surname="Schoenebeck" fullname='C. |
<author initials='C.S.' surname="Schoenebeck" fullname='C. |
34 |
<email>schoenebeck at software minus engineering dot org</email> |
<email>schoenebeck at software minus engineering dot org</email> |
35 |
</address> |
</address> |
36 |
</author> |
</author> |
37 |
<date month="December" year="2007"/> |
<date month="April" year="2008"/> |
38 |
<workgroup>LinuxSampler Developers</workgroup> |
<workgroup>LinuxSampler Developers</workgroup> |
39 |
<keyword>LSCP</keyword> |
<keyword>LSCP</keyword> |
40 |
<abstract> |
<abstract> |
3711 |
</t> |
</t> |
3712 |
</section> |
</section> |
3713 |
|
|
3714 |
|
<section title="Sending MIDI messages to sampler channel" anchor="SEND CHANNEL MIDI_DATA"> |
3715 |
|
<t>The front-end can send MIDI events to specific sampler channel |
3716 |
|
by sending the following command:</t> |
3717 |
|
<t> |
3718 |
|
<list> |
3719 |
|
<t>SEND CHANNEL MIDI_DATA <midi-msg> <sampler-chan> <arg1> <arg2></t> |
3720 |
|
</list> |
3721 |
|
</t> |
3722 |
|
<t>Where <sampler-chan> is the sampler channel number |
3723 |
|
as returned by the <xref target="ADD CHANNEL">"ADD CHANNEL"</xref> |
3724 |
|
or <xref target="LIST CHANNELS">"LIST CHANNELS"</xref> command, |
3725 |
|
<arg1> and <arg2> arguments depend on the <midi-msg> argument, which |
3726 |
|
specifies the MIDI message type. Currently, the following MIDI messages are supported:</t> |
3727 |
|
<t> |
3728 |
|
<list> |
3729 |
|
<t>"NOTE_ON" - |
3730 |
|
<list> |
3731 |
|
<t>For turning on MIDI notes, where <arg1> |
3732 |
|
specifies the key number and <arg2> the velocity |
3733 |
|
as described in the MIDI specification.</t> |
3734 |
|
</list> |
3735 |
|
</t> |
3736 |
|
<t>"NOTE_OFF" - |
3737 |
|
<list> |
3738 |
|
<t>For turning a currently playing MIDI note off, where <arg1> |
3739 |
|
specifies the key number and <arg2> the velocity |
3740 |
|
as described in the MIDI specification.</t> |
3741 |
|
</list> |
3742 |
|
</t> |
3743 |
|
</list> |
3744 |
|
</t> |
3745 |
|
<t>CAUTION: This command is provided for implementations of virtual MIDI keyboards |
3746 |
|
and no realtime guarantee whatsoever will be made!</t> |
3747 |
|
<t>Possible Answers:</t> |
3748 |
|
<t> |
3749 |
|
<list> |
3750 |
|
<t>"OK" - |
3751 |
|
<list> |
3752 |
|
<t>on success</t> |
3753 |
|
</list> |
3754 |
|
</t> |
3755 |
|
<t>"ERR:<error-code>:<error-message>" - |
3756 |
|
<list> |
3757 |
|
<t>in case it failed, providing an appropriate error code and error message</t> |
3758 |
|
</list> |
3759 |
|
</t> |
3760 |
|
</list> |
3761 |
|
</t> |
3762 |
|
<t>Example:</t> |
3763 |
|
<t> |
3764 |
|
<list> |
3765 |
|
<t>C: "SEND CHANNEL MIDI_DATA NOTE_ON 0 56 112"</t> |
3766 |
|
<t>S: "OK"</t> |
3767 |
|
</list> |
3768 |
|
</t> |
3769 |
|
</section> |
3770 |
|
|
3771 |
<section title="Resetting a sampler channel" anchor="RESET CHANNEL"> |
<section title="Resetting a sampler channel" anchor="RESET CHANNEL"> |
3772 |
<t>The front-end can reset a particular sampler channel by sending the following command:</t> |
<t>The front-end can reset a particular sampler channel by sending the following command:</t> |
3773 |
<t> |
<t> |
6060 |
</t> |
</t> |
6061 |
</section> |
</section> |
6062 |
|
|
6063 |
|
<section title="Checking for lost instrument files" anchor="FIND LOST DB_INSTRUMENT_FILES"> |
6064 |
|
<t>The front-end can retrieve the list of all instrument files in the instruments database |
6065 |
|
that don't exist in the filesystem by sending the following command:</t> |
6066 |
|
<t> |
6067 |
|
<list> |
6068 |
|
<t>FIND LOST DB_INSTRUMENT_FILES</t> |
6069 |
|
</list> |
6070 |
|
</t> |
6071 |
|
|
6072 |
|
<t>Possible Answers:</t> |
6073 |
|
<t> |
6074 |
|
<list> |
6075 |
|
<t>A comma separated list with the absolute path names |
6076 |
|
(encapsulated into apostrophes) of all lost instrument files.</t> |
6077 |
|
<t>"ERR:<error-code>:<error-message>" - |
6078 |
|
<list> |
6079 |
|
<t>in case it failed, providing an appropriate error code and error message.</t> |
6080 |
|
</list> |
6081 |
|
</t> |
6082 |
|
</list> |
6083 |
|
</t> |
6084 |
|
<t>Example:</t> |
6085 |
|
<t> |
6086 |
|
<list> |
6087 |
|
<t>C: "FIND LOST DB_INSTRUMENT_FILES"</t> |
6088 |
|
<t>S: "'/gigs/Bosendorfer 290.gig','/gigs/Steinway D.gig','/gigs/Free Piano.gig'"</t> |
6089 |
|
</list> |
6090 |
|
</t> |
6091 |
|
</section> |
6092 |
|
|
6093 |
|
<section title="Replacing an instrument file" anchor="SET DB_INSTRUMENT FILE_PATH"> |
6094 |
|
<t>The front-end can substitute all occurrences of an instrument file |
6095 |
|
in the instruments database with a new one by sending the following command:</t> |
6096 |
|
<t> |
6097 |
|
<list> |
6098 |
|
<t>SET DB_INSTRUMENT FILE_PATH <old_path> <new_path></t> |
6099 |
|
</list> |
6100 |
|
</t> |
6101 |
|
<t>Where <old_path> is the absolute path name of the instrument file |
6102 |
|
to substitute with <new_path>.</t> |
6103 |
|
|
6104 |
|
<t>Possible Answers:</t> |
6105 |
|
<t> |
6106 |
|
<list> |
6107 |
|
<t>"OK" - |
6108 |
|
<list> |
6109 |
|
<t>on success</t> |
6110 |
|
</list> |
6111 |
|
</t> |
6112 |
|
<t>"ERR:<error-code>:<error-message>" - |
6113 |
|
<list> |
6114 |
|
<t>in case it failed, providing an appropriate error code and error message.</t> |
6115 |
|
</list> |
6116 |
|
</t> |
6117 |
|
</list> |
6118 |
|
</t> |
6119 |
|
|
6120 |
|
<t>Example:</t> |
6121 |
|
<t> |
6122 |
|
<list> |
6123 |
|
<t>C: "SET DB_INSTRUMENT FILE_PATH '/gigs/Bosendorfer 290.gig' '/gigs/pianos/Bosendorfer 290.gig'"</t> |
6124 |
|
<t>S: "OK"</t> |
6125 |
|
</list> |
6126 |
|
</t> |
6127 |
|
</section> |
6128 |
|
|
6129 |
</section> |
</section> |
6130 |
|
|
6131 |
|
|
6364 |
vendor of the instrument</t> |
vendor of the instrument</t> |
6365 |
</list> |
</list> |
6366 |
</t> |
</t> |
6367 |
|
<t>KEY_BINDINGS - |
6368 |
|
<list> |
6369 |
|
<t>comma separated list of integer values representing |
6370 |
|
the instrument's key mapping in the range between 0 .. 127, |
6371 |
|
reflecting the analog meaning of the MIDI specification.</t> |
6372 |
|
</list> |
6373 |
|
</t> |
6374 |
|
<t>KEYSWITCH_BINDINGS - |
6375 |
|
<list> |
6376 |
|
<t>comma separated list of integer values representing |
6377 |
|
the instrument's keyswitch mapping in the range between 0 .. 127, |
6378 |
|
reflecting the analog meaning of the MIDI specification.</t> |
6379 |
|
</list> |
6380 |
|
</t> |
6381 |
</list> |
</list> |
6382 |
</t> |
</t> |
6383 |
</list> |
</list> |
6484 |
</t> |
</t> |
6485 |
<t>/ EDIT SP edit_instruction |
<t>/ EDIT SP edit_instruction |
6486 |
</t> |
</t> |
6487 |
<t>/ FORMAT SP format_instruction |
<t>/ FORMAT SP format_instruction |
6488 |
|
</t> |
6489 |
|
<t>SEND SP send_instruction |
6490 |
</t> |
</t> |
6491 |
<t>/ RESET |
<t>/ RESET |
6492 |
</t> |
</t> |
6530 |
</t> |
</t> |
6531 |
<t>/ CHANNEL_COUNT |
<t>/ CHANNEL_COUNT |
6532 |
</t> |
</t> |
6533 |
|
<t>/ CHANNEL_MIDI |
6534 |
|
</t> |
6535 |
|
<t>/ DEVICE_MIDI |
6536 |
|
</t> |
6537 |
<t>/ VOICE_COUNT |
<t>/ VOICE_COUNT |
6538 |
</t> |
</t> |
6539 |
<t>/ STREAM_COUNT |
<t>/ STREAM_COUNT |
6586 |
</t> |
</t> |
6587 |
<t>/ CHANNEL_COUNT |
<t>/ CHANNEL_COUNT |
6588 |
</t> |
</t> |
6589 |
|
<t>/ CHANNEL_MIDI |
6590 |
|
</t> |
6591 |
|
<t>/ DEVICE_MIDI |
6592 |
|
</t> |
6593 |
<t>/ VOICE_COUNT |
<t>/ VOICE_COUNT |
6594 |
</t> |
</t> |
6595 |
<t>/ STREAM_COUNT |
<t>/ STREAM_COUNT |
6788 |
</t> |
</t> |
6789 |
<t>/ DB_INSTRUMENT SP DESCRIPTION SP db_path SP stringval_escaped |
<t>/ DB_INSTRUMENT SP DESCRIPTION SP db_path SP stringval_escaped |
6790 |
</t> |
</t> |
6791 |
|
<t>/ DB_INSTRUMENT SP FILE_PATH SP filename SP filename |
6792 |
|
</t> |
6793 |
<t>/ ECHO SP boolean |
<t>/ ECHO SP boolean |
6794 |
</t> |
</t> |
6795 |
<t>/ VOLUME SP volume_value |
<t>/ VOLUME SP volume_value |
6836 |
</t> |
</t> |
6837 |
<t>/ DB_INSTRUMENT_DIRECTORIES SP db_path SP query_val_list |
<t>/ DB_INSTRUMENT_DIRECTORIES SP db_path SP query_val_list |
6838 |
</t> |
</t> |
6839 |
|
<t>/ LOST SP DB_INSTRUMENT_FILES |
6840 |
|
</t> |
6841 |
</list> |
</list> |
6842 |
</t> |
</t> |
6843 |
<t>move_instruction = |
<t>move_instruction = |
6976 |
</t> |
</t> |
6977 |
</list> |
</list> |
6978 |
</t> |
</t> |
6979 |
|
<t>send_instruction = |
6980 |
|
<list> |
6981 |
|
<t>CHANNEL SP MIDI_DATA SP string SP sampler_channel SP number SP number |
6982 |
|
</t> |
6983 |
|
</list> |
6984 |
|
</t> |
6985 |
<t>load_instr_args = |
<t>load_instr_args = |
6986 |
<list> |
<list> |
6987 |
<t>filename SP instrument_index SP sampler_channel |
<t>filename SP instrument_index SP sampler_channel |
7239 |
<t><xref target="MOVE DB_INSTRUMENT_DIRECTORY">"MOVE DB_INSTRUMENT_DIRECTORY"</xref></t> |
<t><xref target="MOVE DB_INSTRUMENT_DIRECTORY">"MOVE DB_INSTRUMENT_DIRECTORY"</xref></t> |
7240 |
<t><xref target="COPY DB_INSTRUMENT">"COPY DB_INSTRUMENT"</xref></t> |
<t><xref target="COPY DB_INSTRUMENT">"COPY DB_INSTRUMENT"</xref></t> |
7241 |
<t><xref target="COPY DB_INSTRUMENT_DIRECTORY">"COPY DB_INSTRUMENT_DIRECTORY"</xref></t> |
<t><xref target="COPY DB_INSTRUMENT_DIRECTORY">"COPY DB_INSTRUMENT_DIRECTORY"</xref></t> |
7242 |
|
<t><xref target="FIND LOST DB_INSTRUMENT_FILES">"FIND LOST DB_INSTRUMENT_FILES"</xref></t> |
7243 |
|
<t><xref target="SET DB_INSTRUMENT FILE_PATH">"SET DB_INSTRUMENT FILE_PATH"</xref></t> |
7244 |
<t><xref target="GET FILE INSTRUMENTS">"GET FILE INSTRUMENTS"</xref></t> |
<t><xref target="GET FILE INSTRUMENTS">"GET FILE INSTRUMENTS"</xref></t> |
7245 |
<t><xref target="LIST FILE INSTRUMENTS">"LIST FILE INSTRUMENTS"</xref></t> |
<t><xref target="LIST FILE INSTRUMENTS">"LIST FILE INSTRUMENTS"</xref></t> |
7246 |
<t><xref target="GET FILE INSTRUMENT INFO">"GET FILE INSTRUMENT INFO"</xref></t> |
<t><xref target="GET FILE INSTRUMENT INFO">"GET FILE INSTRUMENT INFO"</xref></t> |
7397 |
of sampler channels.</t> |
of sampler channels.</t> |
7398 |
</section> |
</section> |
7399 |
|
|
7400 |
|
<section title="MIDI data on a sampler channel arrived" anchor="SUBSCRIBE CHANNEL_MIDI"> |
7401 |
|
<t>Client may want to be notified when MIDI data arrive on sampler channels on |
7402 |
|
back-end side, by issuing the following command:</t> |
7403 |
|
<t> |
7404 |
|
<list> |
7405 |
|
<t>SUBSCRIBE CHANNEL_MIDI</t> |
7406 |
|
</list> |
7407 |
|
</t> |
7408 |
|
<t>Server will start sending one of the the following notification messages:</t> |
7409 |
|
<t> |
7410 |
|
<list> |
7411 |
|
<t>"NOTIFY:CHANNEL_MIDI:<channel-id> NOTE_ON <note> <velocity>"</t> |
7412 |
|
<t>"NOTIFY:CHANNEL_MIDI:<channel-id> NOTE_OFF <note> <velocity>"</t> |
7413 |
|
</list> |
7414 |
|
</t> |
7415 |
|
<t>where <channel-id> will be replaced by the ID of the sampler channel where the MIDI |
7416 |
|
data arrived. <note> and <velocity> are integer values in the range between |
7417 |
|
0 .. 127, reflecting the analog meaning of the MIDI specification. |
7418 |
|
</t> |
7419 |
|
<t>CAUTION: no guarantee whatsoever will be made that MIDI events are actually all |
7420 |
|
delivered by this mechanism! With other words: events could be lost at any time! |
7421 |
|
This restriction was made to keep the RT-safeness of the backend's MIDI and audio |
7422 |
|
thread unaffected by this feature.</t> |
7423 |
|
</section> |
7424 |
|
|
7425 |
|
<section title="MIDI data on a MIDI input device arrived" anchor="SUBSCRIBE DEVICE_MIDI"> |
7426 |
|
<t>Client may want to be notified when MIDI data arrive on MIDI input devices by issuing the following command:</t> |
7427 |
|
<t> |
7428 |
|
<list> |
7429 |
|
<t>SUBSCRIBE DEVICE_MIDI</t> |
7430 |
|
</list> |
7431 |
|
</t> |
7432 |
|
<t>Server will start sending one of the the following notification messages:</t> |
7433 |
|
<t> |
7434 |
|
<list> |
7435 |
|
<t>"NOTIFY:DEVICE_MIDI:<device-id> <port-id> NOTE_ON <note> <velocity>"</t> |
7436 |
|
<t>"NOTIFY:DEVICE_MIDI:<device-id> <port-id> NOTE_OFF <note> <velocity>"</t> |
7437 |
|
</list> |
7438 |
|
</t> |
7439 |
|
<t>where <device-id> <port-id> will be replaced |
7440 |
|
by the IDs of the respective MIDI input device and the device's MIDI port where the MIDI |
7441 |
|
data arrived. <note> and <velocity> are integer values in the range between |
7442 |
|
0 .. 127, reflecting the analog meaning of the MIDI specification. |
7443 |
|
</t> |
7444 |
|
<t>CAUTION: no guarantee whatsoever will be made that MIDI events are actually all |
7445 |
|
delivered by this mechanism! With other words: events could be lost at any time! |
7446 |
|
This restriction was made to keep the RT-safeness of the backend's MIDI and audio |
7447 |
|
thread unaffected by this feature.</t> |
7448 |
|
</section> |
7449 |
|
|
7450 |
<section title="Number of active voices changed" anchor="SUBSCRIBE VOICE_COUNT"> |
<section title="Number of active voices changed" anchor="SUBSCRIBE VOICE_COUNT"> |
7451 |
<t>Client may want to be notified when the number of voices on the |
<t>Client may want to be notified when the number of voices on the |
7452 |
back-end changes by issuing the following command:</t> |
back-end changes by issuing the following command:</t> |