nsRefPtr<ShutdownPromise>
MediaDecoderReader::Shutdown()
{
MOZ_ASSERT(OnDecodeThread());
mShutdown = true;
mBaseAudioPromise.RejectIfExists(END_OF_STREAM, __func__);
mBaseVideoPromise.RejectIfExists(END_OF_STREAM, __func__);
ReleaseMediaResources();
nsRefPtr<ShutdownPromise> p;
// Spin down the task queue if necessary. We wait until BreakCycles to null
// out mTaskQueue, since otherwise any remaining tasks could crash when they
// invoke GetTaskQueue()->IsCurrentThreadIn().
if (mTaskQueue && !mTaskQueueIsBorrowed) {
// If we own our task queue, shutdown ends when the task queue is done.
p = mTaskQueue->BeginShutdown();
} else {
// If we don't own our task queue, we resolve immediately (though
// asynchronously).
p = ShutdownPromise::CreateAndResolve(true, __func__);
}
mDecoder = nullptr;
return p;
}
void
MediaDecoderReader::Shutdown()
{
MOZ_ASSERT(OnDecodeThread());
mShutdown = true;
ReleaseMediaResources();
if (mTaskQueue && !mTaskQueueIsBorrowed) {
// We may be running in the task queue ourselves, so we don't block this
// thread on task queue draining, since that would deadlock.
mTaskQueue->BeginShutdown();
}
mTaskQueue = nullptr;
}
nsresult
DASHRepDecoder::PopulateByteRanges()
{
NS_ASSERTION(OnDecodeThread(), "Should be on decode thread.");
// Should not be called during shutdown.
NS_ENSURE_FALSE(mShuttingDown, NS_ERROR_UNEXPECTED);
ReentrantMonitorAutoEnter mon(GetReentrantMonitor());
if (!mByteRanges.IsEmpty()) {
return NS_OK;
}
NS_ENSURE_TRUE(mReader, NS_ERROR_NULL_POINTER);
LOG1("Populating byte range array.");
return mReader->GetSubsegmentByteRanges(mByteRanges);
}
void
DASHRepDecoder::OnReadMetadataCompleted()
{
NS_ASSERTION(OnDecodeThread(), "Should be on decode thread.");
// If shutting down, just return silently.
if (mShuttingDown) {
LOG1("Shutting down! Ignoring OnReadMetadataCompleted().");
return;
}
LOG1("Metadata has been read.");
// Metadata loaded and read for this stream; ok to populate byte ranges.
nsresult rv = PopulateByteRanges();
if (NS_FAILED(rv) || mByteRanges.IsEmpty()) {
LOG("Error populating byte ranges [%x]", rv);
DecodeError();
return;
}
mMainDecoder->OnReadMetadataCompleted(this);
}
