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="September" 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> |
5350 |
to the instruments database by sending the following command:</t> |
to the instruments database by sending the following command:</t> |
5351 |
<t> |
<t> |
5352 |
<list> |
<list> |
5353 |
<t>ADD DB_INSTRUMENTS [NON_MODAL] [<mode>] <db_dir> <file_path> [<instr_index>]</t> |
<t>ADD DB_INSTRUMENTS [NON_MODAL] [<mode>[ FILE_AS_DIR]] <db_dir> <file_path> [<instr_index>]</t> |
5354 |
</list> |
</list> |
5355 |
</t> |
</t> |
5356 |
<t>Where <db_dir> is the absolute path name of a directory |
<t>Where <db_dir> is the absolute path name of a directory |
5395 |
</list> |
</list> |
5396 |
</t> |
</t> |
5397 |
|
|
5398 |
|
<t> If FILE_AS_DIR argument is supplied, all instruments in an instrument |
5399 |
|
file will be added to a separate directory in the instruments database, which |
5400 |
|
name will be the name of the instrument file with the file extension stripped off. |
5401 |
|
</t> |
5402 |
<t>The difference between regular and NON_MODAL versions of the command |
<t>The difference between regular and NON_MODAL versions of the command |
5403 |
is that the regular command returns when the scanning is finished |
is that the regular command returns when the scanning is finished |
5404 |
while NON_MODAL version returns immediately and a background process is launched. |
while NON_MODAL version returns immediately and a background process is launched. |
6064 |
</t> |
</t> |
6065 |
</section> |
</section> |
6066 |
|
|
6067 |
|
<section title="Checking for lost instrument files" anchor="FIND LOST DB_INSTRUMENT_FILES"> |
6068 |
|
<t>The front-end can retrieve the list of all instrument files in the instruments database |
6069 |
|
that don't exist in the filesystem by sending the following command:</t> |
6070 |
|
<t> |
6071 |
|
<list> |
6072 |
|
<t>FIND LOST DB_INSTRUMENT_FILES</t> |
6073 |
|
</list> |
6074 |
|
</t> |
6075 |
|
|
6076 |
|
<t>Possible Answers:</t> |
6077 |
|
<t> |
6078 |
|
<list> |
6079 |
|
<t>A comma separated list with the absolute path names |
6080 |
|
(encapsulated into apostrophes) of all lost instrument files.</t> |
6081 |
|
<t>"ERR:<error-code>:<error-message>" - |
6082 |
|
<list> |
6083 |
|
<t>in case it failed, providing an appropriate error code and error message.</t> |
6084 |
|
</list> |
6085 |
|
</t> |
6086 |
|
</list> |
6087 |
|
</t> |
6088 |
|
<t>Example:</t> |
6089 |
|
<t> |
6090 |
|
<list> |
6091 |
|
<t>C: "FIND LOST DB_INSTRUMENT_FILES"</t> |
6092 |
|
<t>S: "'/gigs/Bosendorfer 290.gig','/gigs/Steinway D.gig','/gigs/Free Piano.gig'"</t> |
6093 |
|
</list> |
6094 |
|
</t> |
6095 |
|
</section> |
6096 |
|
|
6097 |
|
<section title="Replacing an instrument file" anchor="SET DB_INSTRUMENT FILE_PATH"> |
6098 |
|
<t>The front-end can substitute all occurrences of an instrument file |
6099 |
|
in the instruments database with a new one by sending the following command:</t> |
6100 |
|
<t> |
6101 |
|
<list> |
6102 |
|
<t>SET DB_INSTRUMENT FILE_PATH <old_path> <new_path></t> |
6103 |
|
</list> |
6104 |
|
</t> |
6105 |
|
<t>Where <old_path> is the absolute path name of the instrument file |
6106 |
|
to substitute with <new_path>.</t> |
6107 |
|
|
6108 |
|
<t>Possible Answers:</t> |
6109 |
|
<t> |
6110 |
|
<list> |
6111 |
|
<t>"OK" - |
6112 |
|
<list> |
6113 |
|
<t>on success</t> |
6114 |
|
</list> |
6115 |
|
</t> |
6116 |
|
<t>"ERR:<error-code>:<error-message>" - |
6117 |
|
<list> |
6118 |
|
<t>in case it failed, providing an appropriate error code and error message.</t> |
6119 |
|
</list> |
6120 |
|
</t> |
6121 |
|
</list> |
6122 |
|
</t> |
6123 |
|
|
6124 |
|
<t>Example:</t> |
6125 |
|
<t> |
6126 |
|
<list> |
6127 |
|
<t>C: "SET DB_INSTRUMENT FILE_PATH '/gigs/Bosendorfer 290.gig' '/gigs/pianos/Bosendorfer 290.gig'"</t> |
6128 |
|
<t>S: "OK"</t> |
6129 |
|
</list> |
6130 |
|
</t> |
6131 |
|
</section> |
6132 |
|
|
6133 |
</section> |
</section> |
6134 |
|
|
6135 |
|
|
6368 |
vendor of the instrument</t> |
vendor of the instrument</t> |
6369 |
</list> |
</list> |
6370 |
</t> |
</t> |
6371 |
|
<t>KEY_BINDINGS - |
6372 |
|
<list> |
6373 |
|
<t>comma separated list of integer values representing |
6374 |
|
the instrument's key mapping in the range between 0 .. 127, |
6375 |
|
reflecting the analog meaning of the MIDI specification.</t> |
6376 |
|
</list> |
6377 |
|
</t> |
6378 |
|
<t>KEYSWITCH_BINDINGS - |
6379 |
|
<list> |
6380 |
|
<t>comma separated list of integer values representing |
6381 |
|
the instrument's keyswitch mapping in the range between 0 .. 127, |
6382 |
|
reflecting the analog meaning of the MIDI specification.</t> |
6383 |
|
</list> |
6384 |
|
</t> |
6385 |
</list> |
</list> |
6386 |
</t> |
</t> |
6387 |
</list> |
</list> |
6490 |
</t> |
</t> |
6491 |
<t>/ FORMAT SP format_instruction |
<t>/ FORMAT SP format_instruction |
6492 |
</t> |
</t> |
6493 |
|
<t>/ SEND SP send_instruction |
6494 |
|
</t> |
6495 |
<t>/ RESET |
<t>/ RESET |
6496 |
</t> |
</t> |
6497 |
<t>/ QUIT |
<t>/ QUIT |
6506 |
</t> |
</t> |
6507 |
<t>/ DB_INSTRUMENTS SP NON_MODAL SP scan_mode SP db_path SP filename |
<t>/ DB_INSTRUMENTS SP NON_MODAL SP scan_mode SP db_path SP filename |
6508 |
</t> |
</t> |
6509 |
|
<t>/ DB_INSTRUMENTS SP NON_MODAL SP scan_mode SP FILE_AS_DIR SP db_path SP filename |
6510 |
|
</t> |
6511 |
<t>/ DB_INSTRUMENTS SP scan_mode SP db_path SP filename |
<t>/ DB_INSTRUMENTS SP scan_mode SP db_path SP filename |
6512 |
</t> |
</t> |
6513 |
|
<t>/ DB_INSTRUMENTS SP scan_mode SP FILE_AS_DIR SP db_path SP filename |
6514 |
|
</t> |
6515 |
<t>/ DB_INSTRUMENTS SP NON_MODAL SP db_path SP filename |
<t>/ DB_INSTRUMENTS SP NON_MODAL SP db_path SP filename |
6516 |
</t> |
</t> |
6517 |
<t>/ DB_INSTRUMENTS SP NON_MODAL SP db_path SP filename SP instrument_index |
<t>/ DB_INSTRUMENTS SP NON_MODAL SP db_path SP filename SP instrument_index |
6538 |
</t> |
</t> |
6539 |
<t>/ CHANNEL_COUNT |
<t>/ CHANNEL_COUNT |
6540 |
</t> |
</t> |
6541 |
|
<t>/ CHANNEL_MIDI |
6542 |
|
</t> |
6543 |
|
<t>/ DEVICE_MIDI |
6544 |
|
</t> |
6545 |
<t>/ VOICE_COUNT |
<t>/ VOICE_COUNT |
6546 |
</t> |
</t> |
6547 |
<t>/ STREAM_COUNT |
<t>/ STREAM_COUNT |
6594 |
</t> |
</t> |
6595 |
<t>/ CHANNEL_COUNT |
<t>/ CHANNEL_COUNT |
6596 |
</t> |
</t> |
6597 |
|
<t>/ CHANNEL_MIDI |
6598 |
|
</t> |
6599 |
|
<t>/ DEVICE_MIDI |
6600 |
|
</t> |
6601 |
<t>/ VOICE_COUNT |
<t>/ VOICE_COUNT |
6602 |
</t> |
</t> |
6603 |
<t>/ STREAM_COUNT |
<t>/ STREAM_COUNT |
6796 |
</t> |
</t> |
6797 |
<t>/ DB_INSTRUMENT SP DESCRIPTION SP db_path SP stringval_escaped |
<t>/ DB_INSTRUMENT SP DESCRIPTION SP db_path SP stringval_escaped |
6798 |
</t> |
</t> |
6799 |
|
<t>/ DB_INSTRUMENT SP FILE_PATH SP filename SP filename |
6800 |
|
</t> |
6801 |
<t>/ ECHO SP boolean |
<t>/ ECHO SP boolean |
6802 |
</t> |
</t> |
6803 |
<t>/ VOLUME SP volume_value |
<t>/ VOLUME SP volume_value |
6844 |
</t> |
</t> |
6845 |
<t>/ DB_INSTRUMENT_DIRECTORIES SP db_path SP query_val_list |
<t>/ DB_INSTRUMENT_DIRECTORIES SP db_path SP query_val_list |
6846 |
</t> |
</t> |
6847 |
|
<t>/ LOST SP DB_INSTRUMENT_FILES |
6848 |
|
</t> |
6849 |
</list> |
</list> |
6850 |
</t> |
</t> |
6851 |
<t>move_instruction = |
<t>move_instruction = |
6984 |
</t> |
</t> |
6985 |
</list> |
</list> |
6986 |
</t> |
</t> |
6987 |
|
<t>send_instruction = |
6988 |
|
<list> |
6989 |
|
<t>CHANNEL SP MIDI_DATA SP string SP sampler_channel SP number SP number |
6990 |
|
</t> |
6991 |
|
</list> |
6992 |
|
</t> |
6993 |
<t>load_instr_args = |
<t>load_instr_args = |
6994 |
<list> |
<list> |
6995 |
<t>filename SP instrument_index SP sampler_channel |
<t>filename SP instrument_index SP sampler_channel |
7247 |
<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> |
7248 |
<t><xref target="COPY DB_INSTRUMENT">"COPY DB_INSTRUMENT"</xref></t> |
<t><xref target="COPY DB_INSTRUMENT">"COPY DB_INSTRUMENT"</xref></t> |
7249 |
<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> |
7250 |
|
<t><xref target="FIND LOST DB_INSTRUMENT_FILES">"FIND LOST DB_INSTRUMENT_FILES"</xref></t> |
7251 |
|
<t><xref target="SET DB_INSTRUMENT FILE_PATH">"SET DB_INSTRUMENT FILE_PATH"</xref></t> |
7252 |
<t><xref target="GET FILE INSTRUMENTS">"GET FILE INSTRUMENTS"</xref></t> |
<t><xref target="GET FILE INSTRUMENTS">"GET FILE INSTRUMENTS"</xref></t> |
7253 |
<t><xref target="LIST FILE INSTRUMENTS">"LIST FILE INSTRUMENTS"</xref></t> |
<t><xref target="LIST FILE INSTRUMENTS">"LIST FILE INSTRUMENTS"</xref></t> |
7254 |
<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> |
7405 |
of sampler channels.</t> |
of sampler channels.</t> |
7406 |
</section> |
</section> |
7407 |
|
|
7408 |
|
<section title="MIDI data on a sampler channel arrived" anchor="SUBSCRIBE CHANNEL_MIDI"> |
7409 |
|
<t>Client may want to be notified when MIDI data arrive on sampler channels on |
7410 |
|
back-end side, by issuing the following command:</t> |
7411 |
|
<t> |
7412 |
|
<list> |
7413 |
|
<t>SUBSCRIBE CHANNEL_MIDI</t> |
7414 |
|
</list> |
7415 |
|
</t> |
7416 |
|
<t>Server will start sending one of the the following notification messages:</t> |
7417 |
|
<t> |
7418 |
|
<list> |
7419 |
|
<t>"NOTIFY:CHANNEL_MIDI:<channel-id> NOTE_ON <note> <velocity>"</t> |
7420 |
|
<t>"NOTIFY:CHANNEL_MIDI:<channel-id> NOTE_OFF <note> <velocity>"</t> |
7421 |
|
</list> |
7422 |
|
</t> |
7423 |
|
<t>where <channel-id> will be replaced by the ID of the sampler channel where the MIDI |
7424 |
|
data arrived. <note> and <velocity> are integer values in the range between |
7425 |
|
0 .. 127, reflecting the analog meaning of the MIDI specification. |
7426 |
|
</t> |
7427 |
|
<t>CAUTION: no guarantee whatsoever will be made that MIDI events are actually all |
7428 |
|
delivered by this mechanism! With other words: events could be lost at any time! |
7429 |
|
This restriction was made to keep the RT-safeness of the backend's MIDI and audio |
7430 |
|
thread unaffected by this feature.</t> |
7431 |
|
</section> |
7432 |
|
|
7433 |
|
<section title="MIDI data on a MIDI input device arrived" anchor="SUBSCRIBE DEVICE_MIDI"> |
7434 |
|
<t>Client may want to be notified when MIDI data arrive on MIDI input devices by issuing the following command:</t> |
7435 |
|
<t> |
7436 |
|
<list> |
7437 |
|
<t>SUBSCRIBE DEVICE_MIDI</t> |
7438 |
|
</list> |
7439 |
|
</t> |
7440 |
|
<t>Server will start sending one of the the following notification messages:</t> |
7441 |
|
<t> |
7442 |
|
<list> |
7443 |
|
<t>"NOTIFY:DEVICE_MIDI:<device-id> <port-id> NOTE_ON <note> <velocity>"</t> |
7444 |
|
<t>"NOTIFY:DEVICE_MIDI:<device-id> <port-id> NOTE_OFF <note> <velocity>"</t> |
7445 |
|
</list> |
7446 |
|
</t> |
7447 |
|
<t>where <device-id> <port-id> will be replaced |
7448 |
|
by the IDs of the respective MIDI input device and the device's MIDI port where the MIDI |
7449 |
|
data arrived. <note> and <velocity> are integer values in the range between |
7450 |
|
0 .. 127, reflecting the analog meaning of the MIDI specification. |
7451 |
|
</t> |
7452 |
|
<t>CAUTION: no guarantee whatsoever will be made that MIDI events are actually all |
7453 |
|
delivered by this mechanism! With other words: events could be lost at any time! |
7454 |
|
This restriction was made to keep the RT-safeness of the backend's MIDI and audio |
7455 |
|
thread unaffected by this feature.</t> |
7456 |
|
</section> |
7457 |
|
|
7458 |
<section title="Number of active voices changed" anchor="SUBSCRIBE VOICE_COUNT"> |
<section title="Number of active voices changed" anchor="SUBSCRIBE VOICE_COUNT"> |
7459 |
<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 |
7460 |
back-end changes by issuing the following command:</t> |
back-end changes by issuing the following command:</t> |