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path: root/libs/ardour/session_ltc.cc
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2018-09-18new transport slave/master implementation, libs/ editionPaul Davis
2017-09-29Update Timecode Generator/Slave alignmentRobin Gareus
2017-09-24convert codebase to use Temporal for various time typesPaul Davis
2017-09-18globally change all use of "frame" to refer to audio into "sample".Paul Davis
Generated by tools/f2s. Some hand-editing will be required in a few places to fix up comments related to timecode and video in order to keep the legible
2017-08-07Revert "Work around a Windows crash (for now)"Robin Gareus
This reverts commit 4f2dc77f6f6b5b0de07304e8a4981ff1298ef090.
2017-08-07Work around a Windows crash (for now)Robin Gareus
The root-cause is likely PortAudio backend specific async port-registration, re-establish ports after session creation and after the first callback and it's apparently a race-condition: crash is not 100% reproducible. #10 0x00007ffb156df18a in msvcrt!abort () from C:\Windows\System32\msvcrt.dll #11 0x0000000012597832 in _wassert (_Message=_Message@entry=0x2eaf96f0 L"_port_handle", _File=0x2 <error: Cannot access memory at address 0x2>, _File@entry=0x346a1430 L"../libs/ardour/audio_port.cc", _Line=80) at ../../mingw-w64-crt/misc/wassert.c:54 #12 0x00000000125978e8 in _assert (_Message=0x1282f7e9 "_port_handle", _File=0x1282f7a0 "../libs/ardour/audio_port.cc", _Line=80) at ../../mingw-w64-crt/misc/wassert.c:30 #13 0x00000000120d1a51 in ARDOUR::AudioPort::get_audio_buffer (this=0x34a95a70, nframes=256) at ../libs/ardour/audio_port.cc:80 #14 0x00000000126724f9 in ARDOUR::AudioPort::get_buffer (this=<optimized out>, nframes=<optimized out>) at ../libs/ardour/ardour/audio_port.h:43 #15 0x0000000012435421 in ARDOUR::Session::ltc_tx_send_time_code_for_cycle (this=this@entry=0x37666310, start_frame=0, end_frame=end_frame@entry=256, target_speed=0, current_speed=0, nframes=nframes@entry=256) at ../libs/ardour/session_ltc.cc:180 #16 0x000000001245209f in ARDOUR::Session::no_roll (this=this@entry=0x37666310, nframes=256) at ../libs/ardour/session_process.cc:145 #17 0x0000000012453051 in ARDOUR::Session::fail_roll (this=this@entry=0x37666310, nframes=<optimized out>) at ../libs/ardour/session_process.cc:128 #18 0x0000000012459ebd in ARDOUR::Session::process_without_events (this=this@entry=0x37666310, nframes=nframes@entry=256) at ../libs/ardour/session_process.cc:897 #19 0x000000001245a462 in ARDOUR::Session::process_with_events (this=0x37666310, nframes=256) at ../libs/ardour/session_process.cc:425 #20 0x0000000012451bc5 in ARDOUR::Session::process (this=0x37666310, nframes=nframes@entry=256) at ../libs/ardour/session_process.cc:78 #21 0x00000000120e79fd in ARDOUR::AudioEngine::process_callback (this=0x23316e30, nframes=256) at ../libs/ardour/audioengine.cc:376 #22 0x00000000285390fe in ARDOUR::PortAudioBackend::blocking_process_main (this=this@entry=0x29e67750, interleaved_input_data=interleaved_input_data@entry=0x115e8790, interleaved_output_data=interleaved_output_data@entry=0x115e0050) at ../libs/backends/portaudio/portaudio_backend.cc:1962 #23 0x0000000028539b75 in ARDOUR::PortAudioBackend::process_callback (this=this@entry=0x29e67750, input=0x115e8790, output=0x115e0050, frame_count=<optimized out>, timeInfo=0x3d17fd70, statusFlags=statusFlags@entry=0) at ../libs/backends/portaudio/portaudio_backend.cc:775 #24 0x0000000028539c16 in ARDOUR::PortAudioBackend::portaudio_callback (input=<optimized out>, output=<optimized out>, frame_count=<optimized out>, time_info=<optimized out>, status_flags=0, user_data=0x29e67750) at ../libs/backends/portaudio/portaudio_backend.cc:721 #25 0x00000000632c528f in NonAdaptingProcess () from C:\Program Files\Mixbus32C-4\bin\libportaudio-2.dll #26 0x00000000632c73b2 in PaUtil_EndBufferProcessing () from C:\Program Files\Mixbus32C-4\bin\libportaudio-2.dll #27 0x00000000632d129c in ProcessingThreadProc () from C:\Program Files\Mixbus32C-4\bin\libportaudio-2.dll
2017-08-03Some more assert() debuggingRobin Gareus
2017-08-01Fix some more crashes at session-closeRobin Gareus
PortDrop unregisters backend ports, the backend will return a NULL buffer-pointer, but the I/O object still exists (Metronome, LTC) AudioBuffer::_data == 0 #0 msvcrt!memset () from C:\Windows\System32\msvcrt.dll #1 ARDOUR::AudioBuffer::silence (this=0x2c410710, len=256, offset=0) at ../libs/ardour/audio_buffer.cc:88 #2 ARDOUR::AudioPort::cycle_end (this=0x34918730, nframes=256) at ../libs/ardour/audio_port.cc:66 #3 ARDOUR::PortManager::cycle_end (this=this@entry=0x23342770, nframes=nframes@entry=256) [process callback w/o session]
2017-08-01Fix LTC encoder removalRobin Gareus
Fixed a crash if an x-run or graph-reorder happens after the LTC encoder has been destroyed (possible at session-close or after disabling the encoder). This also fixes duplicate callbacks in case the encoder was re-enabled times in an active session.
2016-12-08Clarify "frames" (video, timecode) vs "samples" (audio)Robin Gareus
2016-11-02fix LTC-generator 24h wraparoundRobin Gareus
2016-07-14enough with umpteen "i18n.h" files. Consolidate on pbd/i18n.hPaul Davis
2015-01-09fix LTC alignment.Robin Gareus
LTC-slave: offset the parsed LTC-frame instead of changing the frame's timestamp. This fixes an issue with freewheel timeout and delta-calculation. Align transport-time with output to match capture alignment: "with existing material". LTC-generator: follow suit. align clock with master-bus out. This is a semi-permanent workaround. Once [tracks feeding] the master-bus is/are delayed to align to output. The generator needs to use (worst_track_latency not worst_playback_latency)
2014-10-11revert 8ca546e - original version was correct (note added)Robin Gareus
2014-10-11fix LTC generator latency compensation.Robin Gareus
2013-09-12incomplete merge of master into windows (requires upcoming changes to master ↵Paul Davis
to be complete)
2013-08-24fix merge conflicts from masterPaul Davis
2013-08-09Merge branch 'master' into audioenginePaul Davis
2013-08-07fix compiler warningRobin Gareus
2013-08-05fix conflicts after merge with masterPaul Davis
2013-08-04'libs/ardour' - Main body of changes required for building with MSVCJohn Emmas
2013-08-04fix no-roll LTC encoder, honor locates when transport is stoppedRobin Gareus
2013-07-25most of libardour now actually compilesPaul Davis
2013-05-17simplify prev commitRobin Gareus
2013-05-17free buffer then set it to 0jdekozak
2012-11-18fix LTC frame TVstandard offsetRobin Gareus
<pre> Ardour- transport 01:00:00:01 | | 5 5 | NTSC Line 2 2 | 1 4 5 v 1 2 3 4 5 6 7 8 9 0 ____________________ ________________ TV | | | | | | | | |_|_|_|_|_|_| | | | | | | | ^ | v +-+ +-+ + + +-+ +-+ +---+ +---+ | | | | | | | | | | | | | | | | LTC +-+ +-+ +-+ +-+ +---+ +-+ +---+ +---+ SYNC-WORD | LTC B | B LTC 01:00:00:00 I | I 01:00:00:01 T T 7 9 0 </pre> git-svn-id: svn://localhost/ardour2/branches/3.0@13524 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-18fix LTC frame offset for video standardsRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13517 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-17update to libltc-1.1.0Robin Gareus
add support for TV standard specific offset and binary-group-flags git-svn-id: svn://localhost/ardour2/branches/3.0@13514 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-13implement TC offset for slave&generator.Robin Gareus
Many related changes that require atomic update, mostly because ClockOption slots changed: * change offset config format to std:string (backwards compat - reads 0) * make Timecode offset independent from fps * sample_to_timecode() handle negative sample-num * audio-clock fix entry and edit of negative numbers * option editor: - remove old global internal offset - add slave & generator TC entry - still needs UI cleanup, tooltops, maybe sep. tab.. * LTC & MTC slave& generator: - cache offset - subscribe to parameter changes git-svn-id: svn://localhost/ardour2/branches/3.0@13485 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-11add slave and generator Timecode offset (no UI yet)Robin Gareus
So far only LTC slave, LTC generator and MTC slave. MTC generator remains to be done. git-svn-id: svn://localhost/ardour2/branches/3.0@13441 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-09LTC encoder: relax alignment constraint under some circumstances.Robin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13406 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-09LTC encoder: fix signal polarityRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13403 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-09LTC encoder: clear user-bitsRobin Gareus
requires libltc >=1.0.3 git-svn-id: svn://localhost/ardour2/branches/3.0@13401 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-05NOOP - LTC generator replace double(a) with (double)aRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13389 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-05NOOP - LTC generator: bit-alignment add comments and made permanentRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13388 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-05LTC generator: undo pull up/down adjustmentsRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13387 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-05LTC generator: adaptive signal filterRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13386 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-05experimental LTC sub-frame drift compensation for scope testingRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13384 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-05LTC generator: filter the signal to reduce ringing.Robin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13382 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-11-04LTC generator fix latency compensation.Robin Gareus
thinko: the generated timecode is offset and not the timestamp when to send it. git-svn-id: svn://localhost/ardour2/branches/3.0@13377 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-30LTC slave/gen latency compensation: jack2 got fixed, remove #ifdefRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13368 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-29LTC: break out xrun and latency callbacks.Robin Gareus
prepare to call get_connected_latency_range() only if needed. git-svn-id: svn://localhost/ardour2/branches/3.0@13366 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-28LTC (slave&gen): no reset on graph-changeRobin Gareus
fixes issues with transport stop/start when making connections with jack1 while slaved to LTC git-svn-id: svn://localhost/ardour2/branches/3.0@13356 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-27do not do LTC port latency stuff during session deletion, which causes ↵Paul Davis
Session::ltc_rx_reset() to be called git-svn-id: svn://localhost/ardour2/branches/3.0@13354 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-26LTC generator - reinit on xrun or graph-reorderRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13351 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-26LTC generator - prevent assert when framerate changes midwayRobin Gareus
git-svn-id: svn://localhost/ardour2/branches/3.0@13346 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-26prevent raptor attacks on Ardour's lead developer.Robin Gareus
https://xkcd.com/292/ git-svn-id: svn://localhost/ardour2/branches/3.0@13345 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-26clean up consequences of using IO/Port/Buffer for LTC output, and in related ↵Paul Davis
work, move calls to Session::ltc_tx_send_time_code_for_cycle() into Session::no_roll() to cover most cases where we "do not roll" git-svn-id: svn://localhost/ardour2/branches/3.0@13343 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-25fix some issues with previous commit that were not properly tested because ↵Paul Davis
HAVE_LTC was undefined in my test build git-svn-id: svn://localhost/ardour2/branches/3.0@13342 d708f5d6-7413-0410-9779-e7cbd77b26cf
2012-10-24mostly cosmetic changes to LTC generatorRobin Gareus
also enable latency compensation and disable LTC gen from MClk (both of which should have been in prev commit, but commented here) git-svn-id: svn://localhost/ardour2/branches/3.0@13335 d708f5d6-7413-0410-9779-e7cbd77b26cf
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-25 16:42:22 +0000