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Added a workaround for playing broken video files with invalid PTS values.

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This commit is contained in:
Leon Styhre 2022-09-08 18:38:19 +02:00
parent b9303e5494
commit a2769b98d4
1 changed files with 16 additions and 0 deletions
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16
es-core/src/components/VideoFFmpegComponent.cpp
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@ -765,6 +765,14 @@ void VideoFFmpegComponent::outputFrames()
// Process the audio frames that have a PTS value below mAccumulatedTime (plus a small // Process the audio frames that have a PTS value below mAccumulatedTime (plus a small
// buffer to avoid underflows). // buffer to avoid underflows).
while (!mAudioFrameQueue.empty()) { while (!mAudioFrameQueue.empty()) {
// In very rare instances video files are broken and start with a high PTS value for
// the first frame. In this case set the accumulated time value to this PTS value if
// the audio frame queue is filled, otherwise the stream will never start playing.
if (mAudioFrameCount == 0 &&
mAudioFrameQueue.size() == static_cast<size_t>(mAudioTargetQueueSize) &&
mAccumulatedTime < mAudioFrameQueue.front().pts) {
mAccumulatedTime = mAudioFrameQueue.front().pts;
}
if (mAudioFrameQueue.front().pts < mAccumulatedTime + AUDIO_BUFFER) { if (mAudioFrameQueue.front().pts < mAccumulatedTime + AUDIO_BUFFER) {
// Enable only when needed, as this generates a lot of debug output. // Enable only when needed, as this generates a lot of debug output.
if (DEBUG_VIDEO) { if (DEBUG_VIDEO) {
@ -808,6 +816,14 @@ void VideoFFmpegComponent::outputFrames()
// But if more than one frame is processed here, it means that the computer can't // But if more than one frame is processed here, it means that the computer can't
// keep up for some reason. // keep up for some reason.
while (mIsActuallyPlaying && !mVideoFrameQueue.empty()) { while (mIsActuallyPlaying && !mVideoFrameQueue.empty()) {
// This workaround for broken files with a high PTS value for the first frame is only
// applied if there are no audio streams available.
if (!mAudioCodecContext && !mDecodedFrame &&
mVideoFrameQueue.size() == static_cast<size_t>(mVideoTargetQueueSize) &&
mAccumulatedTime < mVideoFrameQueue.front().pts) {
mAccumulatedTime = mVideoFrameQueue.front().pts;
}
if (mVideoFrameQueue.front().pts < mAccumulatedTime) { if (mVideoFrameQueue.front().pts < mAccumulatedTime) {
// Enable only when needed, as this generates a lot of debug output. // Enable only when needed, as this generates a lot of debug output.
if (DEBUG_VIDEO) { if (DEBUG_VIDEO) {