Ratecontrol scratchfix VC logic #3
Conversation
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maybe scratch2_indicates_scratching, defaults to on? Ugh the names are so bad. |
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It looks like you think to the new co like a config value. My point is that the name should be look like a interactive value, because it actually has the the same function like "vinylcontrol_scratching". It could be also be "scratch2_disables_keylock" or "scratch2_allows_keylock". But this way we introduce a new terminology compared to VC. Sync logic is prepared to act on the "reportScratching" as well so it is better not to focus the name too much. |
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well, the name is important because controller config writers, who don't know the codebase well, will need to use it and understand what it does. I think it is a config value, it's telling the engine whether or not it should treat scratch2_enable as an indication that the user is scratching or not. |
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Yes, that is the source of our disagreement. If we decide to go the config value way, then IMHO a dedicated rate control for the moving platter use case would be better. Then it could have a self explaining name. The current version has the advantage, that the controller config writer can notice from the name, that he should change the value if it is possible to detect scratching by the script. In the original version he might know when to set it, but not why. And it is confusing, because the enable control will not be always on, It is still allowed to switch scratch2_enable. |
Added tar archive with a reference library structure that should now …
Clarified en-US strings, adjusted line length.
Implements changes to effect unit handling as requested by @Be-ing
…h sync
When loading a track that is not yet present in the library (and thus
doesn't have any BPM because it hasn't been analyzed yet) while another
deck is playing and both decks have sync enabled, a debug assertion is
triggered:
DEBUG ASSERT: "isValid()" in function double mixxx::Bpm::value() const at src/track/bpm.h:53
Aborted (core dumped)
The backtrace looks as follows:
#0 0x00007f175c87234c in __pthread_kill_implementation () at /usr/lib/libc.so.6
#1 0x00007f175c8254b8 in raise () at /usr/lib/libc.so.6
#2 0x00007f175c80f534 in abort () at /usr/lib/libc.so.6
#3 0x00007f175cf05ee4 in qt_assert(char const*, char const*, int) () at /usr/lib/libQt5Core.so.5
#4 0x000055deb2e67e1c in mixxx::(anonymous namespace)::handleMessage(QtMsgType, QMessageLogContext const&, QString const&) (type=<optimized out>, context=<optimized out>, input=<optimized out>) at src/util/logging.cpp:355
#5 0x00007f175cf47128 in () at /usr/lib/libQt5Core.so.5
#6 0x00007f175cf3fd8a in () at /usr/lib/libQt5Core.so.5
#7 0x00007f175cf06526 in QMessageLogger::critical(char const*, ...) const () at /usr/lib/libQt5Core.so.5
#8 0x000055deb2e5c720 in mixxx_debug_assert(char const*, char const*, int, char const*) (assertion=assertion@entry=0x55deb39bd0db "isValid()", file=file@entry=0x55deb39bbf30 "src/track/bpm.h", line=line@entry=53, function=function@entry=0x55deb39bbf08 "double mixxx::Bpm::value() const") at gsrc/util/assert.h:9
#9 0x000055deb2ee7e7e in mixxx_debug_assert_return_true(char const*, char const*, int, char const*) (function=0x55deb39bbf08 "double mixxx::Bpm::value() const", line=53, file=0x55deb39bbf30 "src/track/bpm.h", assertion=0x55deb39bd0db "isValid()") at gsrc/util/assert.h:18
#10 mixxx::Bpm::value() const (this=<synthetic pointer>) at src/track/bpm.h:53
#11 mixxx::operator*(mixxx::Bpm, double) (multiple=1, bpm=...) at src/track/bpm.h:160
#12 SyncControl::setLocalBpm(mixxx::Bpm) (this=<optimized out>, localBpm=...) at src/engine/sync/synccontrol.cpp:567
mixxxdj#13 0x000055deb34c7ba3 in EngineBuffer::postProcess(int) (this=0x55deb56eb060, iBufferSize=2048) at src/engine/enginebuffer.cpp:1318
mixxxdj#14 0x000055deb3139023 in EngineMaster::processChannels(int) (this=0x55deb5449440, iBufferSize=<optimized out>) at src/engine/enginemaster.cpp:383
mixxxdj#15 0x000055deb31394f7 in EngineMaster::process(int) (this=0x55deb5449440, iBufferSize=iBufferSize@entry=2048) at src/engine/enginemaster.cpp:410
mixxxdj#16 0x000055deb2f91d0b in SoundManager::onDeviceOutputCallback(long) (this=<optimized out>, iFramesPerBuffer=iFramesPerBuffer@entry=1024) at src/soundio/soundmanager.cpp:596
mixxxdj#17 0x000055deb32dd794 in SoundDevicePortAudio::callbackProcessClkRef(long, float*, float const*, PaStreamCallbackTimeInfo const*, unsigned long) (this=0x55deb553e6b0, framesPerBuffer=1024, out=<optimized out>, in=<optimized out>, timeInfo=<optimized out>, statusFlags=<optimized out>) at src/soundio/sounddeviceportaudio.cpp:965
This happens because `newLocalBpm` is invalid when `localBpm` is
invalid. Trying to do sync decks while no tempo information is available
does not make sense, so we only synchronize decks if the local BPM is
available.
Hi @ywwg,
here a version similar to VC logic and with waveform scratch fix.