already_AddRefed<SourceBufferDecoder>
MediaSourceReader::FirstDecoder(MediaData::Type aType)
{
ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
TrackBuffer* trackBuffer =
aType == MediaData::AUDIO_DATA ? mAudioTrack : mVideoTrack;
MOZ_ASSERT(trackBuffer);
const nsTArray<nsRefPtr<SourceBufferDecoder>>& decoders = trackBuffer->Decoders();
if (decoders.IsEmpty()) {
return nullptr;
}
nsRefPtr<SourceBufferDecoder> firstDecoder;
media::TimeUnit lowestStartTime{media::TimeUnit::FromInfinity()};
for (uint32_t i = 0; i < decoders.Length(); ++i) {
media::TimeIntervals r = decoders[i]->GetBuffered();
if (!r.Length()) {
continue;
}
media::TimeUnit start = r.GetStart();
if (start < lowestStartTime) {
firstDecoder = decoders[i];
lowestStartTime = start;
}
}
return firstDecoder.forget();
}
bool
MediaSourceReader::HaveData(int64_t aTarget, MediaData::Type aType)
{
TrackBuffer* trackBuffer = aType == MediaData::AUDIO_DATA ? mAudioTrack : mVideoTrack;
MOZ_ASSERT(trackBuffer);
nsRefPtr<SourceBufferDecoder> decoder = SelectDecoder(aTarget, EOS_FUZZ_US, trackBuffer->Decoders());
return !!decoder;
}
