RefPtr<MP4TrackDemuxer::SeekPromise>
MP4TrackDemuxer::Seek(const media::TimeUnit& aTime)
{
auto seekTime = aTime;
mQueuedSample = nullptr;
mIterator->Seek(seekTime.ToMicroseconds());
// Check what time we actually seeked to.
RefPtr<MediaRawData> sample;
do {
sample = GetNextSample();
if (!sample) {
return SeekPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_END_OF_STREAM,
__func__);
}
if (!sample->Size()) {
// This sample can't be decoded, continue searching.
continue;
}
if (sample->mKeyframe) {
mQueuedSample = sample;
seekTime = mQueuedSample->mTime;
}
} while (!mQueuedSample);
SetNextKeyFrameTime();
return SeekPromise::CreateAndResolve(seekTime, __func__);
}
void
MP4TrackDemuxer::Reset()
{
mQueuedSample = nullptr;
// TODO, Seek to first frame available, which isn't always 0.
mIterator->Seek(0);
SetNextKeyFrameTime();
}
RefPtr<MP4TrackDemuxer::SeekPromise>
MP4TrackDemuxer::Seek(media::TimeUnit aTime)
{
int64_t seekTime = aTime.ToMicroseconds();
mQueuedSample = nullptr;
mIterator->Seek(seekTime);
// Check what time we actually seeked to.
mQueuedSample = mIterator->GetNext();
if (mQueuedSample) {
seekTime = mQueuedSample->mTime;
}
SetNextKeyFrameTime();
return SeekPromise::CreateAndResolve(media::TimeUnit::FromMicroseconds(seekTime), __func__);
}