nsresult
MP4Reader::ReadMetadata(MediaInfo* aInfo,
MetadataTags** aTags)
{
if (!mDemuxerInitialized) {
MonitorAutoLock mon(mDemuxerMonitor);
bool ok = InvokeAndRetry(this, &MP4Reader::InitDemuxer, mStream, &mDemuxerMonitor);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
mIndexReady = true;
// To decode, we need valid video and a place to put it.
mInfo.mVideo.mHasVideo = mVideo.mActive = mDemuxer->HasValidVideo() &&
mDecoder->GetImageContainer();
if (mVideo.mActive) {
mVideo.mTrackDemuxer = new MP4VideoDemuxer(mDemuxer);
}
mInfo.mAudio.mHasAudio = mAudio.mActive = mDemuxer->HasValidAudio();
if (mAudio.mActive) {
mAudio.mTrackDemuxer = new MP4AudioDemuxer(mDemuxer);
}
mCrypto = mDemuxer->Crypto();
{
MonitorAutoUnlock unlock(mDemuxerMonitor);
ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
mInfo.mCrypto.mIsEncrypted = mIsEncrypted = mCrypto.valid;
}
// Remember that we've initialized the demuxer, so that if we're decoding
// an encrypted stream and we need to wait for a CDM to be set, we don't
// need to reinit the demuxer.
mDemuxerInitialized = true;
} else if (mPlatform && !IsWaitingMediaResources()) {
*aInfo = mInfo;
*aTags = nullptr;
return NS_OK;
}
if (HasAudio()) {
const AudioDecoderConfig& audio = mDemuxer->AudioConfig();
mInfo.mAudio.mRate = audio.samples_per_second;
mInfo.mAudio.mChannels = audio.channel_count;
mAudio.mCallback = new DecoderCallback(this, kAudio);
}
if (HasVideo()) {
const VideoDecoderConfig& video = mDemuxer->VideoConfig();
mInfo.mVideo.mDisplay =
nsIntSize(video.display_width, video.display_height);
mVideo.mCallback = new DecoderCallback(this, kVideo);
// Collect telemetry from h264 AVCC SPS.
if (!mFoundSPSForTelemetry) {
mFoundSPSForTelemetry = AccumulateSPSTelemetry(video.extra_data);
}
}
if (mIsEncrypted) {
nsTArray<uint8_t> initData;
ExtractCryptoInitData(initData);
if (initData.Length() == 0) {
return NS_ERROR_FAILURE;
}
mInfo.mCrypto.mInitData = initData;
mInfo.mCrypto.mType = NS_LITERAL_STRING("cenc");
}
// Get the duration, and report it to the decoder if we have it.
Microseconds duration;
{
MonitorAutoLock lock(mDemuxerMonitor);
duration = mDemuxer->Duration();
}
if (duration != -1) {
ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
mDecoder->SetMediaDuration(duration);
}
*aInfo = mInfo;
*aTags = nullptr;
if (!IsWaitingMediaResources() && !IsWaitingOnCDMResource()) {
NS_ENSURE_TRUE(EnsureDecodersSetup(), NS_ERROR_FAILURE);
}
MonitorAutoLock mon(mDemuxerMonitor);
UpdateIndex();
return NS_OK;
}
nsresult
MP4Reader::ReadMetadata(MediaInfo* aInfo,
MetadataTags** aTags)
{
if (!mDemuxerInitialized) {
MonitorAutoLock mon(mDemuxerMonitor);
bool ok = InvokeAndRetry(this, &MP4Reader::InitDemuxer, mStream, &mDemuxerMonitor);
NS_ENSURE_TRUE(ok, NS_ERROR_FAILURE);
mIndexReady = true;
// To decode, we need valid video and a place to put it.
mVideo.mActive = mDemuxer->HasValidVideo() && mDecoder->GetImageContainer();
if (mVideo.mActive) {
mVideo.mTrackDemuxer = new MP4VideoDemuxer(mDemuxer);
}
mAudio.mActive = mDemuxer->HasValidAudio();
if (mAudio.mActive) {
mAudio.mTrackDemuxer = new MP4AudioDemuxer(mDemuxer);
}
mCrypto = mDemuxer->Crypto();
{
MonitorAutoUnlock unlock(mDemuxerMonitor);
ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
mIsEncrypted = mCrypto.valid;
}
// Remember that we've initialized the demuxer, so that if we're decoding
// an encrypted stream and we need to wait for a CDM to be set, we don't
// need to reinit the demuxer.
mDemuxerInitialized = true;
} else if (mPlatform && !IsWaitingMediaResources()) {
*aInfo = mInfo;
*aTags = nullptr;
}
if (HasAudio()) {
mInfo.mAudio = mDemuxer->AudioConfig();
mAudio.mCallback = new DecoderCallback(this, TrackInfo::kAudioTrack);
}
if (HasVideo()) {
mInfo.mVideo = mDemuxer->VideoConfig();
mVideo.mCallback = new DecoderCallback(this, TrackInfo::kVideoTrack);
// Collect telemetry from h264 AVCC SPS.
if (!mFoundSPSForTelemetry) {
mFoundSPSForTelemetry = AccumulateSPSTelemetry(mInfo.mVideo.mExtraData);
}
}
if (mCrypto.valid) {
nsTArray<uint8_t> initData;
ExtractCryptoInitData(initData);
if (initData.Length() == 0) {
return NS_ERROR_FAILURE;
}
// Add init data to info, will get sent from HTMLMediaElement::MetadataLoaded
// (i.e., when transitioning from HAVE_NOTHING to HAVE_METADATA).
mInfo.mCrypto.AddInitData(NS_LITERAL_STRING("cenc"), Move(initData));
}
// Get the duration, and report it to the decoder if we have it.
Microseconds duration;
{
MonitorAutoLock lock(mDemuxerMonitor);
duration = mDemuxer->Duration();
}
if (duration != -1) {
ReentrantMonitorAutoEnter mon(mDecoder->GetReentrantMonitor());
mDecoder->SetMediaDuration(duration);
}
*aInfo = mInfo;
*aTags = nullptr;
if (!IsWaitingOnCDMResource()) {
NS_ENSURE_TRUE(EnsureDecodersSetup(), NS_ERROR_FAILURE);
}
MonitorAutoLock mon(mDemuxerMonitor);
UpdateIndex();
return NS_OK;
}
