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timing refactor
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Aiden
2026-05-12 23:39:57 +10:00
parent 4a049a557a
commit d411453f80
17 changed files with 125 additions and 112 deletions
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13
apps/LoopThroughWithOpenGLCompositing/videoio/decklink/DeckLinkSession.cpp
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@@ -526,13 +526,24 @@ bool DeckLinkSession::PopulateOutputFrame(IDeckLinkMutableVideoFrame* outputVide
bool DeckLinkSession::ScheduleFrame(IDeckLinkMutableVideoFrame* outputVideoFrame)
{
const VideoIOScheduleTime scheduleTime = mScheduler.NextScheduleTime();
if (outputVideoFrame == nullptr || output == nullptr)
{
++mState.deckLinkScheduleFailureCount;
return false;
}
BMDTimeValue streamTime = 0;
double playbackSpeed = 0.0;
if (output->GetScheduledStreamTime(mScheduler.TimeScale(), &streamTime, &playbackSpeed) == S_OK && playbackSpeed > 0.0)
{
RefreshBufferedVideoFrameCount();
const uint64_t leadFrames = mState.actualDeckLinkBufferedFramesAvailable
? static_cast<uint64_t>(mState.actualDeckLinkBufferedFrames) + 1
: static_cast<uint64_t>(mPlayoutPolicy.targetPrerollFrames);
mScheduler.AlignNextScheduleTimeToPlayback(streamTime, leadFrames);
}
const VideoIOScheduleTime scheduleTime = mScheduler.NextScheduleTime();
const auto scheduleStart = std::chrono::steady_clock::now();
const HRESULT result = output->ScheduleVideoFrame(outputVideoFrame, scheduleTime.streamTime, scheduleTime.duration, scheduleTime.timeScale);
const auto scheduleEnd = std::chrono::steady_clock::now();