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VST3 Client: Enable support for more FrameRateTypes, and set editOriginTime correctly

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This commit is contained in:
reuk 2021-06-03 13:20:09 +01:00
parent 8dc7636fc4
commit 77ad8b23bb
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GPG key ID: 9ADCD339CFC98A11
1 changed files with 40 additions and 21 deletions
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61
modules/juce_audio_plugin_client/VST3/juce_VST3_Wrapper.cpp
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@ -2552,36 +2552,55 @@ public:
info.isRecording = (processContext.state & Vst::ProcessContext::kRecording) != 0;
info.isPlaying = (processContext.state & Vst::ProcessContext::kPlaying) != 0;
info.isLooping = (processContext.state & Vst::ProcessContext::kCycleActive) != 0;
info.editOriginTime = 0.0;
info.frameRate = AudioPlayHead::fpsUnknown;
if ((processContext.state & Vst::ProcessContext::kSmpteValid) != 0)
info.frameRate = [&]
{
if ((processContext.state & Vst::ProcessContext::kSmpteValid) == 0)
return fpsUnknown;
const auto interpretFlags = [&] (FrameRateType basicRate,
FrameRateType pullDownRate,
FrameRateType dropRate,
FrameRateType pullDownDropRate)
{
switch (processContext.frameRate.flags & (Vst::FrameRate::kPullDownRate | Vst::FrameRate::kDropRate))
{
case Vst::FrameRate::kPullDownRate | Vst::FrameRate::kDropRate:
return pullDownDropRate;
case Vst::FrameRate::kPullDownRate:
return pullDownRate;
case Vst::FrameRate::kDropRate:
return dropRate;
}
return basicRate;
};
switch (processContext.frameRate.framesPerSecond)
{
case 24:
{
if ((processContext.frameRate.flags & Vst::FrameRate::kPullDownRate) != 0)
info.frameRate = AudioPlayHead::fps23976;
else
info.frameRate = AudioPlayHead::fps24;
}
break;
case 25: info.frameRate = AudioPlayHead::fps25; break;
case 29: info.frameRate = AudioPlayHead::fps30drop; break;
return interpretFlags (fps24, fps23976, fps24, fps23976);
case 25:
return interpretFlags (fps25, fps25, fps25, fps25);
case 30:
{
if ((processContext.frameRate.flags & Vst::FrameRate::kDropRate) != 0)
info.frameRate = AudioPlayHead::fps30drop;
else
info.frameRate = AudioPlayHead::fps30;
}
break;
return interpretFlags (fps30, fps2997, fps30drop, fps2997drop);
default: break;
case 60:
return interpretFlags (fps60, fps60, fps60drop, fps60drop);
}
}
return fpsUnknown;
}();
const auto baseFps = (double) processContext.frameRate.framesPerSecond;
const auto effectiveFps = (processContext.frameRate.flags & Vst::FrameRate::kPullDownRate) != 0
? baseFps * 1000.0 / 1001.0
: baseFps;
info.editOriginTime = (double) processContext.smpteOffsetSubframes / (80.0 * effectiveFps);
return true;
}