alastor0325
918b433607
After BeginEnableContent fires, delay 500ms before surfacing waitingforkey to the content process, matching Chromium's approach to avoid a race where the key is installed before the JS handler has attached. See https://source.chromium.org/chromium/chromium/src/+/main:media/renderers/win/media_foundation_protection_manager.cc;l=201-203 Wire NotifyWaitingForKey from MFMediaEngineParent so that the content-side waitingforkey event fires when the media engine signals it needs a key, complementing the track-level waiting-for-key events already surfaced by MediaFormatReader. Differential Revision: https://phabricator.services.mozilla.com/D287633
140 lines
4.4 KiB
C++
140 lines
4.4 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef ReaderProxy_h_
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#define ReaderProxy_h_
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#include "MediaEventSource.h"
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#include "MediaFormatReader.h"
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#include "MediaPromiseDefs.h"
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#include "mozilla/AbstractThread.h"
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#include "mozilla/RefPtr.h"
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#include "nsISupportsImpl.h"
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namespace mozilla {
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/**
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* A wrapper around MediaFormatReader to offset the timestamps of Audio/Video
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* samples by the start time to ensure MDSM can always assume zero start time.
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* It also adjusts the seek target passed to Seek() to ensure correct seek time
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* is passed to the underlying reader.
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*/
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class ReaderProxy {
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using MetadataPromise = MediaFormatReader::MetadataPromise;
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using AudioDataPromise = MediaFormatReader::AudioDataPromise;
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using VideoDataPromise = MediaFormatReader::VideoDataPromise;
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using SeekPromise = MediaFormatReader::SeekPromise;
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using WaitForDataPromise = MediaFormatReader::WaitForDataPromise;
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using TrackSet = MediaFormatReader::TrackSet;
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NS_INLINE_DECL_THREADSAFE_REFCOUNTING(ReaderProxy);
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public:
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ReaderProxy(AbstractThread* aOwnerThread, MediaFormatReader* aReader);
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media::TimeUnit StartTime() const;
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RefPtr<MetadataPromise> ReadMetadata();
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RefPtr<AudioDataPromise> RequestAudioData();
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RefPtr<VideoDataPromise> RequestVideoData(
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const media::TimeUnit& aTimeThreshold, bool aRequestNextVideoKeyFrame);
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RefPtr<WaitForDataPromise> WaitForData(MediaData::Type aType);
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RefPtr<SeekPromise> Seek(const SeekTarget& aTarget);
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RefPtr<ShutdownPromise> Shutdown();
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void ReleaseResources();
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void ResetDecode(TrackSet aTracks);
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nsresult Init() { return mReader->Init(); }
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bool UseBufferingHeuristics() const {
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return mReader->UseBufferingHeuristics();
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}
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bool VideoIsHardwareAccelerated() const {
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return mReader->VideoIsHardwareAccelerated();
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}
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TimedMetadataEventSource& TimedMetadataEvent() {
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return mReader->TimedMetadataEvent();
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}
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MediaEventSource<void>& OnMediaNotSeekable() {
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return mReader->OnMediaNotSeekable();
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}
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MediaEventProducer<VideoInfo, AudioInfo>& OnTrackInfoUpdatedEvent() {
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return mReader->OnTrackInfoUpdatedEvent();
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}
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size_t SizeOfAudioQueueInFrames() const {
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return mReader->SizeOfAudioQueueInFrames();
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}
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size_t SizeOfVideoQueueInFrames() const {
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return mReader->SizeOfVideoQueueInFrames();
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}
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void ReadUpdatedMetadata(MediaInfo* aInfo) {
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mReader->ReadUpdatedMetadata(aInfo);
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}
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AbstractCanonical<media::TimeIntervals>* CanonicalBuffered() {
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return mReader->CanonicalBuffered();
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}
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RefPtr<SetCDMPromise> SetCDMProxy(CDMProxy* aProxy);
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#ifdef MOZ_WMF_CDM
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void NotifyWaitingForKey() {
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RefPtr<MediaFormatReader> reader = mReader;
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(void)mReader->OwnerThread()->Dispatch(NS_NewRunnableFunction(
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"ReaderProxy::NotifyWaitingForKey",
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[reader]() { reader->NotifyWaitingForKeyForMFCDM(); }));
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}
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#endif
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void SetVideoBlankDecode(bool aIsBlankDecode);
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void SetCanonicalDuration(Canonical<media::NullableTimeUnit>& aCanonical);
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void UpdateMediaEngineId(uint64_t aMediaEngineId);
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void SetEncryptedCustomIdent();
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bool IsEncryptedCustomIdent() const;
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Maybe<uint32_t> GetMaxVideoQueueSize() {
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return mReader->GetVideoDecodeProperties().MaxQueueSize();
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}
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Maybe<uint32_t> GetMinVideoQueueSize() {
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return mReader->GetVideoDecodeProperties().MinQueueSize();
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}
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Maybe<uint32_t> GetSendToCompositorSize() {
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return mReader->GetVideoDecodeProperties().SendToCompositorSize();
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}
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private:
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~ReaderProxy();
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RefPtr<MetadataPromise> OnMetadataRead(MetadataHolder&& aMetadata);
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RefPtr<MetadataPromise> OnMetadataNotRead(const MediaResult& aError);
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void UpdateDuration();
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RefPtr<SeekPromise> SeekInternal(const SeekTarget& aTarget);
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RefPtr<ReaderProxy::AudioDataPromise> OnAudioDataRequestCompleted(
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RefPtr<AudioData> aAudio);
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RefPtr<ReaderProxy::AudioDataPromise> OnAudioDataRequestFailed(
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const MediaResult& aError);
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const RefPtr<AbstractThread> mOwnerThread;
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const RefPtr<MediaFormatReader> mReader;
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bool mShutdown = false;
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Maybe<media::TimeUnit> mStartTime;
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// State-watching manager.
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WatchManager<ReaderProxy> mWatchManager;
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// Duration, mirrored from the state machine task queue.
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Mirror<media::NullableTimeUnit> mDuration;
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};
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} // namespace mozilla
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#endif // ReaderProxy_h_
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