4013 lines
132 KiB
C++
4013 lines
132 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
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/* 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MediaStreamGraphImpl.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/Unused.h"
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#include "AudioSegment.h"
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#include "VideoSegment.h"
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#include "nsContentUtils.h"
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#include "nsIObserver.h"
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#include "nsPrintfCString.h"
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#include "nsServiceManagerUtils.h"
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#include "prerror.h"
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#include "mozilla/Logging.h"
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#include "mozilla/Attributes.h"
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#include "TrackUnionStream.h"
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#include "ImageContainer.h"
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#include "AudioCaptureStream.h"
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#include "AudioChannelService.h"
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#include "AudioNodeStream.h"
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#include "AudioNodeExternalInputStream.h"
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#include "MediaStreamListener.h"
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#include "MediaStreamVideoSink.h"
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#include "mozilla/dom/AudioContextBinding.h"
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#include "mozilla/media/MediaUtils.h"
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#include <algorithm>
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#include "GeckoProfiler.h"
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#include "VideoFrameContainer.h"
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#include "mozilla/Unused.h"
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#include "mozilla/media/MediaUtils.h"
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#ifdef MOZ_WEBRTC
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#include "AudioOutputObserver.h"
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#endif
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#include "mtransport/runnable_utils.h"
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#include "webaudio/blink/HRTFDatabaseLoader.h"
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using namespace mozilla::layers;
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using namespace mozilla::dom;
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using namespace mozilla::gfx;
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using namespace mozilla::media;
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namespace mozilla {
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LazyLogModule gMediaStreamGraphLog("MediaStreamGraph");
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#define STREAM_LOG(type, msg) MOZ_LOG(gMediaStreamGraphLog, type, msg)
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// #define ENABLE_LIFECYCLE_LOG
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// We don't use NSPR log here because we want this interleaved with adb logcat
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// on Android/B2G
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#ifdef ENABLE_LIFECYCLE_LOG
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# ifdef ANDROID
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# include "android/log.h"
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# define LIFECYCLE_LOG(...) __android_log_print(ANDROID_LOG_INFO, "Gecko - MSG", ## __VA_ARGS__); printf(__VA_ARGS__);printf("\n");
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# else
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# define LIFECYCLE_LOG(...) printf(__VA_ARGS__);printf("\n");
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# endif
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#else
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# define LIFECYCLE_LOG(...)
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#endif
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enum SourceMediaStream::TrackCommands : uint32_t {
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TRACK_CREATE = TrackEventCommand::TRACK_EVENT_CREATED,
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TRACK_END = TrackEventCommand::TRACK_EVENT_ENDED,
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TRACK_UNUSED = TrackEventCommand::TRACK_EVENT_UNUSED,
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};
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/**
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* A hash table containing the graph instances, one per AudioChannel.
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*/
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static nsDataHashtable<nsUint32HashKey, MediaStreamGraphImpl*> gGraphs;
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MediaStreamGraphImpl::~MediaStreamGraphImpl()
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{
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NS_ASSERTION(IsEmpty(),
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"All streams should have been destroyed by messages from the main thread");
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STREAM_LOG(LogLevel::Debug, ("MediaStreamGraph %p destroyed", this));
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LIFECYCLE_LOG("MediaStreamGraphImpl::~MediaStreamGraphImpl\n");
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}
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void
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MediaStreamGraphImpl::FinishStream(MediaStream* aStream)
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{
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if (aStream->mFinished)
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return;
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STREAM_LOG(LogLevel::Debug, ("MediaStream %p will finish", aStream));
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#ifdef DEBUG
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for (StreamTracks::TrackIter track(aStream->mTracks);
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!track.IsEnded(); track.Next()) {
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if (!track->IsEnded()) {
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STREAM_LOG(LogLevel::Error,
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("MediaStream %p will finish, but track %d has not ended.",
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aStream, track->GetID()));
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NS_ASSERTION(false, "Finished stream cannot contain live track");
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}
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}
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#endif
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aStream->mFinished = true;
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aStream->mTracks.AdvanceKnownTracksTime(STREAM_TIME_MAX);
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SetStreamOrderDirty();
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}
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void
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MediaStreamGraphImpl::AddStreamGraphThread(MediaStream* aStream)
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{
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aStream->mTracksStartTime = mProcessedTime;
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if (aStream->AsSourceStream()) {
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SourceMediaStream* source = aStream->AsSourceStream();
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TimeStamp currentTimeStamp = CurrentDriver()->GetCurrentTimeStamp();
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TimeStamp processedTimeStamp = currentTimeStamp +
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TimeDuration::FromSeconds(MediaTimeToSeconds(mProcessedTime - IterationEnd()));
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source->SetStreamTracksStartTimeStamp(processedTimeStamp);
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}
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if (aStream->IsSuspended()) {
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mSuspendedStreams.AppendElement(aStream);
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STREAM_LOG(LogLevel::Debug, ("Adding media stream %p to the graph, in the suspended stream array", aStream));
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} else {
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mStreams.AppendElement(aStream);
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STREAM_LOG(LogLevel::Debug, ("Adding media stream %p to graph %p, count %lu", aStream, this, mStreams.Length()));
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LIFECYCLE_LOG("Adding media stream %p to graph %p, count %lu", aStream, this, mStreams.Length());
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}
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SetStreamOrderDirty();
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}
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void
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MediaStreamGraphImpl::RemoveStreamGraphThread(MediaStream* aStream)
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{
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// Remove references in mStreamUpdates before we allow aStream to die.
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// Pending updates are not needed (since the main thread has already given
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// up the stream) so we will just drop them.
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{
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MonitorAutoLock lock(mMonitor);
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for (uint32_t i = 0; i < mStreamUpdates.Length(); ++i) {
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if (mStreamUpdates[i].mStream == aStream) {
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mStreamUpdates[i].mStream = nullptr;
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}
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}
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}
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// Ensure that mFirstCycleBreaker and mMixer are updated when necessary.
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SetStreamOrderDirty();
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if (aStream->IsSuspended()) {
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mSuspendedStreams.RemoveElement(aStream);
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} else {
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mStreams.RemoveElement(aStream);
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}
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STREAM_LOG(LogLevel::Debug, ("Removed media stream %p from graph %p, count %lu",
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aStream, this, mStreams.Length()));
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LIFECYCLE_LOG("Removed media stream %p from graph %p, count %lu",
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aStream, this, mStreams.Length());
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NS_RELEASE(aStream); // probably destroying it
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}
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void
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MediaStreamGraphImpl::ExtractPendingInput(SourceMediaStream* aStream,
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GraphTime aDesiredUpToTime,
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bool* aEnsureNextIteration)
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{
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bool finished;
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{
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MutexAutoLock lock(aStream->mMutex);
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if (aStream->mPullEnabled && !aStream->mFinished &&
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!aStream->mListeners.IsEmpty()) {
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// Compute how much stream time we'll need assuming we don't block
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// the stream at all.
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StreamTime t = aStream->GraphTimeToStreamTime(aDesiredUpToTime);
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STREAM_LOG(LogLevel::Verbose, ("Calling NotifyPull aStream=%p t=%f current end=%f", aStream,
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MediaTimeToSeconds(t),
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MediaTimeToSeconds(aStream->mTracks.GetEnd())));
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if (t > aStream->mTracks.GetEnd()) {
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*aEnsureNextIteration = true;
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#ifdef DEBUG
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if (aStream->mListeners.Length() == 0) {
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STREAM_LOG(LogLevel::Error, ("No listeners in NotifyPull aStream=%p desired=%f current end=%f",
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aStream, MediaTimeToSeconds(t),
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MediaTimeToSeconds(aStream->mTracks.GetEnd())));
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aStream->DumpTrackInfo();
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}
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#endif
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for (uint32_t j = 0; j < aStream->mListeners.Length(); ++j) {
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MediaStreamListener* l = aStream->mListeners[j];
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{
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MutexAutoUnlock unlock(aStream->mMutex);
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l->NotifyPull(this, t);
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}
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}
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}
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}
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finished = aStream->mUpdateFinished;
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bool shouldNotifyTrackCreated = false;
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for (int32_t i = aStream->mUpdateTracks.Length() - 1; i >= 0; --i) {
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SourceMediaStream::TrackData* data = &aStream->mUpdateTracks[i];
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aStream->ApplyTrackDisabling(data->mID, data->mData);
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// Dealing with NotifyQueuedTrackChanges and NotifyQueuedAudioData part.
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// The logic is different from the manipulating of aStream->mTracks part.
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// So it is not combined with the manipulating of aStream->mTracks part.
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StreamTime offset = (data->mCommands & SourceMediaStream::TRACK_CREATE)
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? data->mStart : aStream->mTracks.FindTrack(data->mID)->GetSegment()->GetDuration();
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// Audio case.
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if (data->mData->GetType() == MediaSegment::AUDIO) {
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if (data->mCommands) {
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MOZ_ASSERT(!(data->mCommands & SourceMediaStream::TRACK_UNUSED));
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for (MediaStreamListener* l : aStream->mListeners) {
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if (data->mCommands & SourceMediaStream::TRACK_END) {
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l->NotifyQueuedAudioData(this, data->mID,
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offset, *(static_cast<AudioSegment*>(data->mData.get())));
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}
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l->NotifyQueuedTrackChanges(this, data->mID,
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offset, static_cast<TrackEventCommand>(data->mCommands), *data->mData);
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if (data->mCommands & SourceMediaStream::TRACK_CREATE) {
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l->NotifyQueuedAudioData(this, data->mID,
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offset, *(static_cast<AudioSegment*>(data->mData.get())));
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}
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}
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} else {
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for (MediaStreamListener* l : aStream->mListeners) {
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l->NotifyQueuedAudioData(this, data->mID,
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offset, *(static_cast<AudioSegment*>(data->mData.get())));
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}
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}
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}
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// Video case.
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if (data->mData->GetType() == MediaSegment::VIDEO) {
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if (data->mCommands) {
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MOZ_ASSERT(!(data->mCommands & SourceMediaStream::TRACK_UNUSED));
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for (MediaStreamListener* l : aStream->mListeners) {
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l->NotifyQueuedTrackChanges(this, data->mID,
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offset, static_cast<TrackEventCommand>(data->mCommands), *data->mData);
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}
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}
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}
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for (TrackBound<MediaStreamTrackListener>& b : aStream->mTrackListeners) {
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if (b.mTrackID != data->mID) {
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continue;
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}
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b.mListener->NotifyQueuedChanges(this, offset, *data->mData);
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if (data->mCommands & SourceMediaStream::TRACK_END) {
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b.mListener->NotifyEnded();
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}
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}
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if (data->mCommands & SourceMediaStream::TRACK_CREATE) {
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MediaSegment* segment = data->mData.forget();
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STREAM_LOG(LogLevel::Debug, ("SourceMediaStream %p creating track %d, start %lld, initial end %lld",
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aStream, data->mID, int64_t(data->mStart),
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int64_t(segment->GetDuration())));
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data->mEndOfFlushedData += segment->GetDuration();
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aStream->mTracks.AddTrack(data->mID, data->mStart, segment);
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// The track has taken ownership of data->mData, so let's replace
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// data->mData with an empty clone.
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data->mData = segment->CreateEmptyClone();
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data->mCommands &= ~SourceMediaStream::TRACK_CREATE;
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shouldNotifyTrackCreated = true;
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} else if (data->mData->GetDuration() > 0) {
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MediaSegment* dest = aStream->mTracks.FindTrack(data->mID)->GetSegment();
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STREAM_LOG(LogLevel::Verbose, ("SourceMediaStream %p track %d, advancing end from %lld to %lld",
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aStream, data->mID,
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int64_t(dest->GetDuration()),
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int64_t(dest->GetDuration() + data->mData->GetDuration())));
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data->mEndOfFlushedData += data->mData->GetDuration();
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dest->AppendFrom(data->mData);
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}
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if (data->mCommands & SourceMediaStream::TRACK_END) {
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aStream->mTracks.FindTrack(data->mID)->SetEnded();
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aStream->mUpdateTracks.RemoveElementAt(i);
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}
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}
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if (shouldNotifyTrackCreated) {
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for (MediaStreamListener* l : aStream->mListeners) {
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l->NotifyFinishedTrackCreation(this);
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}
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}
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if (!aStream->mFinished) {
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aStream->mTracks.AdvanceKnownTracksTime(aStream->mUpdateKnownTracksTime);
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}
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}
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if (aStream->mTracks.GetEnd() > 0) {
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aStream->mHasCurrentData = true;
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}
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if (finished) {
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FinishStream(aStream);
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}
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}
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StreamTime
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MediaStreamGraphImpl::GraphTimeToStreamTimeWithBlocking(MediaStream* aStream,
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GraphTime aTime)
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{
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MOZ_ASSERT(aTime <= mStateComputedTime,
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"Don't ask about times where we haven't made blocking decisions yet");
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return std::max<StreamTime>(0,
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std::min(aTime, aStream->mStartBlocking) - aStream->mTracksStartTime);
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}
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GraphTime
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MediaStreamGraphImpl::IterationEnd() const
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{
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return CurrentDriver()->IterationEnd();
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}
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void
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MediaStreamGraphImpl::UpdateCurrentTimeForStreams(GraphTime aPrevCurrentTime)
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{
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for (MediaStream* stream : AllStreams()) {
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bool isAnyBlocked = stream->mStartBlocking < mStateComputedTime;
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bool isAnyUnblocked = stream->mStartBlocking > aPrevCurrentTime;
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// Calculate blocked time and fire Blocked/Unblocked events
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GraphTime blockedTime = mStateComputedTime - stream->mStartBlocking;
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NS_ASSERTION(blockedTime >= 0, "Error in blocking time");
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stream->AdvanceTimeVaryingValuesToCurrentTime(mStateComputedTime,
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blockedTime);
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STREAM_LOG(LogLevel::Verbose,
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("MediaStream %p bufferStartTime=%f blockedTime=%f", stream,
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MediaTimeToSeconds(stream->mTracksStartTime),
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MediaTimeToSeconds(blockedTime)));
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stream->mStartBlocking = mStateComputedTime;
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if (isAnyUnblocked && stream->mNotifiedBlocked) {
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for (uint32_t j = 0; j < stream->mListeners.Length(); ++j) {
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MediaStreamListener* l = stream->mListeners[j];
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l->NotifyBlockingChanged(this, MediaStreamListener::UNBLOCKED);
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}
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stream->mNotifiedBlocked = false;
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}
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if (isAnyBlocked && !stream->mNotifiedBlocked) {
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for (uint32_t j = 0; j < stream->mListeners.Length(); ++j) {
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MediaStreamListener* l = stream->mListeners[j];
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l->NotifyBlockingChanged(this, MediaStreamListener::BLOCKED);
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}
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stream->mNotifiedBlocked = true;
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}
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if (isAnyUnblocked) {
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NS_ASSERTION(!stream->mNotifiedFinished,
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"Shouldn't have already notified of finish *and* have output!");
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for (uint32_t j = 0; j < stream->mListeners.Length(); ++j) {
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MediaStreamListener* l = stream->mListeners[j];
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l->NotifyOutput(this, mProcessedTime);
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}
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}
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// The stream is fully finished when all of its track data has been played
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// out.
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if (stream->mFinished && !stream->mNotifiedFinished &&
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mProcessedTime >=
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stream->StreamTimeToGraphTime(stream->GetStreamTracks().GetAllTracksEnd())) {
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stream->mNotifiedFinished = true;
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SetStreamOrderDirty();
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for (uint32_t j = 0; j < stream->mListeners.Length(); ++j) {
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MediaStreamListener* l = stream->mListeners[j];
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l->NotifyEvent(this, MediaStreamGraphEvent::EVENT_FINISHED);
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}
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}
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}
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}
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template<typename C, typename Chunk>
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void
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MediaStreamGraphImpl::ProcessChunkMetadataForInterval(MediaStream* aStream,
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TrackID aTrackID,
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C& aSegment,
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StreamTime aStart,
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StreamTime aEnd)
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{
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MOZ_ASSERT(aStream);
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MOZ_ASSERT(IsTrackIDExplicit(aTrackID));
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StreamTime offset = 0;
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for (typename C::ConstChunkIterator chunk(aSegment);
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!chunk.IsEnded(); chunk.Next()) {
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if (offset >= aEnd) {
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break;
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}
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offset += chunk->GetDuration();
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if (chunk->IsNull() || offset < aStart) {
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continue;
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}
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PrincipalHandle principalHandle = chunk->GetPrincipalHandle();
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if (principalHandle != aSegment.GetLastPrincipalHandle()) {
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aSegment.SetLastPrincipalHandle(principalHandle);
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STREAM_LOG(LogLevel::Debug, ("MediaStream %p track %d, principalHandle "
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"changed in %sChunk with duration %lld",
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aStream, aTrackID,
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aSegment.GetType() == MediaSegment::AUDIO
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? "Audio" : "Video",
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(long long) chunk->GetDuration()));
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for (const TrackBound<MediaStreamTrackListener>& listener : aStream->mTrackListeners) {
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if (listener.mTrackID == aTrackID) {
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listener.mListener->NotifyPrincipalHandleChanged(this, principalHandle);
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}
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}
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}
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}
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}
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void
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MediaStreamGraphImpl::ProcessChunkMetadata(GraphTime aPrevCurrentTime)
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{
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for (MediaStream* stream : AllStreams()) {
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StreamTime iterationStart = stream->GraphTimeToStreamTime(aPrevCurrentTime);
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StreamTime iterationEnd = stream->GraphTimeToStreamTime(mProcessedTime);
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for (StreamTracks::TrackIter tracks(stream->mTracks);
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!tracks.IsEnded(); tracks.Next()) {
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MediaSegment* segment = tracks->GetSegment();
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if (!segment) {
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continue;
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}
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if (tracks->GetType() == MediaSegment::AUDIO) {
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AudioSegment* audio = static_cast<AudioSegment*>(segment);
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ProcessChunkMetadataForInterval<AudioSegment, AudioChunk>(
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stream, tracks->GetID(), *audio, iterationStart, iterationEnd);
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} else if (tracks->GetType() == MediaSegment::VIDEO) {
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VideoSegment* video = static_cast<VideoSegment*>(segment);
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ProcessChunkMetadataForInterval<VideoSegment, VideoChunk>(
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stream, tracks->GetID(), *video, iterationStart, iterationEnd);
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} else {
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MOZ_CRASH("Unknown track type");
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}
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}
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}
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}
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GraphTime
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MediaStreamGraphImpl::WillUnderrun(MediaStream* aStream,
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GraphTime aEndBlockingDecisions)
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{
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// Finished streams can't underrun. ProcessedMediaStreams also can't cause
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// underrun currently, since we'll always be able to produce data for them
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// unless they block on some other stream.
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if (aStream->mFinished || aStream->AsProcessedStream()) {
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return aEndBlockingDecisions;
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}
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// This stream isn't finished or suspended. We don't need to call
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// StreamTimeToGraphTime since an underrun is the only thing that can block
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// it.
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GraphTime bufferEnd = aStream->GetTracksEnd() + aStream->mTracksStartTime;
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#ifdef DEBUG
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if (bufferEnd < mProcessedTime) {
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STREAM_LOG(LogLevel::Error, ("MediaStream %p underrun, "
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"bufferEnd %f < mProcessedTime %f (%lld < %lld), Streamtime %lld",
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aStream, MediaTimeToSeconds(bufferEnd), MediaTimeToSeconds(mProcessedTime),
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bufferEnd, mProcessedTime, aStream->GetTracksEnd()));
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aStream->DumpTrackInfo();
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NS_ASSERTION(bufferEnd >= mProcessedTime, "Buffer underran");
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}
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#endif
|
|
return std::min(bufferEnd, aEndBlockingDecisions);
|
|
}
|
|
|
|
namespace {
|
|
// Value of mCycleMarker for unvisited streams in cycle detection.
|
|
const uint32_t NOT_VISITED = UINT32_MAX;
|
|
// Value of mCycleMarker for ordered streams in muted cycles.
|
|
const uint32_t IN_MUTED_CYCLE = 1;
|
|
} // namespace
|
|
|
|
bool
|
|
MediaStreamGraphImpl::AudioTrackPresent(bool& aNeedsAEC)
|
|
{
|
|
AssertOnGraphThreadOrNotRunning();
|
|
|
|
bool audioTrackPresent = false;
|
|
for (uint32_t i = 0; i < mStreams.Length() && audioTrackPresent == false; ++i) {
|
|
MediaStream* stream = mStreams[i];
|
|
SourceMediaStream* source = stream->AsSourceStream();
|
|
#ifdef MOZ_WEBRTC
|
|
if (source && source->NeedsMixing()) {
|
|
aNeedsAEC = true;
|
|
}
|
|
#endif
|
|
// If this is a AudioNodeStream, force a AudioCallbackDriver.
|
|
if (stream->AsAudioNodeStream()) {
|
|
audioTrackPresent = true;
|
|
} else {
|
|
for (StreamTracks::TrackIter tracks(stream->GetStreamTracks(), MediaSegment::AUDIO);
|
|
!tracks.IsEnded(); tracks.Next()) {
|
|
audioTrackPresent = true;
|
|
}
|
|
}
|
|
if (source) {
|
|
audioTrackPresent = source->HasPendingAudioTrack();
|
|
}
|
|
}
|
|
|
|
// XXX For some reason, there are race conditions when starting an audio input where
|
|
// we find no active audio tracks. In any case, if we have an active audio input we
|
|
// should not allow a switch back to a SystemClockDriver
|
|
if (!audioTrackPresent && mInputDeviceUsers.Count() != 0) {
|
|
NS_WARNING("No audio tracks, but full-duplex audio is enabled!!!!!");
|
|
audioTrackPresent = true;
|
|
#ifdef MOZ_WEBRTC
|
|
aNeedsAEC = true;
|
|
#endif
|
|
}
|
|
|
|
return audioTrackPresent;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::UpdateStreamOrder()
|
|
{
|
|
bool shouldAEC = false;
|
|
bool audioTrackPresent = AudioTrackPresent(shouldAEC);
|
|
|
|
// Note that this looks for any audio streams, input or output, and switches to a
|
|
// SystemClockDriver if there are none. However, if another is already pending, let that
|
|
// switch happen.
|
|
|
|
if (!audioTrackPresent && mRealtime &&
|
|
CurrentDriver()->AsAudioCallbackDriver()) {
|
|
MonitorAutoLock mon(mMonitor);
|
|
if (CurrentDriver()->AsAudioCallbackDriver()->IsStarted() &&
|
|
!(CurrentDriver()->Switching())) {
|
|
if (mLifecycleState == LIFECYCLE_RUNNING) {
|
|
SystemClockDriver* driver = new SystemClockDriver(this);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool switching = false;
|
|
{
|
|
MonitorAutoLock mon(mMonitor);
|
|
switching = CurrentDriver()->Switching();
|
|
}
|
|
|
|
if (audioTrackPresent && mRealtime &&
|
|
!CurrentDriver()->AsAudioCallbackDriver() &&
|
|
!switching) {
|
|
MonitorAutoLock mon(mMonitor);
|
|
if (mLifecycleState == LIFECYCLE_RUNNING) {
|
|
AudioCallbackDriver* driver = new AudioCallbackDriver(this);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
}
|
|
}
|
|
|
|
#ifdef MOZ_WEBRTC
|
|
// Whenever we change AEC state, notify the current driver, which also
|
|
// will sample the state when the driver inits
|
|
if (shouldAEC && !mFarendObserverRef && gFarendObserver) {
|
|
mFarendObserverRef = gFarendObserver;
|
|
mMixer.AddCallback(mFarendObserverRef);
|
|
if (CurrentDriver()->AsAudioCallbackDriver()) {
|
|
CurrentDriver()->AsAudioCallbackDriver()->SetMicrophoneActive(true);
|
|
}
|
|
} else if (!shouldAEC && mFarendObserverRef){
|
|
if (mMixer.FindCallback(mFarendObserverRef)) {
|
|
mMixer.RemoveCallback(mFarendObserverRef);
|
|
mFarendObserverRef = nullptr;
|
|
if (CurrentDriver()->AsAudioCallbackDriver()) {
|
|
CurrentDriver()->AsAudioCallbackDriver()->SetMicrophoneActive(false);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (!mStreamOrderDirty) {
|
|
return;
|
|
}
|
|
|
|
mStreamOrderDirty = false;
|
|
|
|
// The algorithm for finding cycles is based on Tim Leslie's iterative
|
|
// implementation [1][2] of Pearce's variant [3] of Tarjan's strongly
|
|
// connected components (SCC) algorithm. There are variations (a) to
|
|
// distinguish whether streams in SCCs of size 1 are in a cycle and (b) to
|
|
// re-run the algorithm over SCCs with breaks at DelayNodes.
|
|
//
|
|
// [1] http://www.timl.id.au/?p=327
|
|
// [2] https://github.com/scipy/scipy/blob/e2c502fca/scipy/sparse/csgraph/_traversal.pyx#L582
|
|
// [3] http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.102.1707
|
|
//
|
|
// There are two stacks. One for the depth-first search (DFS),
|
|
mozilla::LinkedList<MediaStream> dfsStack;
|
|
// and another for streams popped from the DFS stack, but still being
|
|
// considered as part of SCCs involving streams on the stack.
|
|
mozilla::LinkedList<MediaStream> sccStack;
|
|
|
|
// An index into mStreams for the next stream found with no unsatisfied
|
|
// upstream dependencies.
|
|
uint32_t orderedStreamCount = 0;
|
|
|
|
for (uint32_t i = 0; i < mStreams.Length(); ++i) {
|
|
MediaStream* s = mStreams[i];
|
|
ProcessedMediaStream* ps = s->AsProcessedStream();
|
|
if (ps) {
|
|
// The dfsStack initially contains a list of all processed streams in
|
|
// unchanged order.
|
|
dfsStack.insertBack(s);
|
|
ps->mCycleMarker = NOT_VISITED;
|
|
} else {
|
|
// SourceMediaStreams have no inputs and so can be ordered now.
|
|
mStreams[orderedStreamCount] = s;
|
|
++orderedStreamCount;
|
|
}
|
|
}
|
|
|
|
// mNextStackMarker corresponds to "index" in Tarjan's algorithm. It is a
|
|
// counter to label mCycleMarker on the next visited stream in the DFS
|
|
// uniquely in the set of visited streams that are still being considered.
|
|
//
|
|
// In this implementation, the counter descends so that the values are
|
|
// strictly greater than the values that mCycleMarker takes when the stream
|
|
// has been ordered (0 or IN_MUTED_CYCLE).
|
|
//
|
|
// Each new stream labelled, as the DFS searches upstream, receives a value
|
|
// less than those used for all other streams being considered.
|
|
uint32_t nextStackMarker = NOT_VISITED - 1;
|
|
// Reset list of DelayNodes in cycles stored at the tail of mStreams.
|
|
mFirstCycleBreaker = mStreams.Length();
|
|
|
|
// Rearrange dfsStack order as required to DFS upstream and pop streams
|
|
// in processing order to place in mStreams.
|
|
while (auto ps = static_cast<ProcessedMediaStream*>(dfsStack.getFirst())) {
|
|
const auto& inputs = ps->mInputs;
|
|
MOZ_ASSERT(ps->AsProcessedStream());
|
|
if (ps->mCycleMarker == NOT_VISITED) {
|
|
// Record the position on the visited stack, so that any searches
|
|
// finding this stream again know how much of the stack is in the cycle.
|
|
ps->mCycleMarker = nextStackMarker;
|
|
--nextStackMarker;
|
|
// Not-visited input streams should be processed first.
|
|
// SourceMediaStreams have already been ordered.
|
|
for (uint32_t i = inputs.Length(); i--; ) {
|
|
if (inputs[i]->mSource->IsSuspended()) {
|
|
continue;
|
|
}
|
|
auto input = inputs[i]->mSource->AsProcessedStream();
|
|
if (input && input->mCycleMarker == NOT_VISITED) {
|
|
// It can be that this stream has an input which is from a suspended
|
|
// AudioContext.
|
|
if (input->isInList()) {
|
|
input->remove();
|
|
dfsStack.insertFront(input);
|
|
}
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Returning from DFS. Pop from dfsStack.
|
|
ps->remove();
|
|
|
|
// cycleStackMarker keeps track of the highest marker value on any
|
|
// upstream stream, if any, found receiving input, directly or indirectly,
|
|
// from the visited stack (and so from |ps|, making a cycle). In a
|
|
// variation from Tarjan's SCC algorithm, this does not include |ps|
|
|
// unless it is part of the cycle.
|
|
uint32_t cycleStackMarker = 0;
|
|
for (uint32_t i = inputs.Length(); i--; ) {
|
|
if (inputs[i]->mSource->IsSuspended()) {
|
|
continue;
|
|
}
|
|
auto input = inputs[i]->mSource->AsProcessedStream();
|
|
if (input) {
|
|
cycleStackMarker = std::max(cycleStackMarker, input->mCycleMarker);
|
|
}
|
|
}
|
|
|
|
if (cycleStackMarker <= IN_MUTED_CYCLE) {
|
|
// All inputs have been ordered and their stack markers have been removed.
|
|
// This stream is not part of a cycle. It can be processed next.
|
|
ps->mCycleMarker = 0;
|
|
mStreams[orderedStreamCount] = ps;
|
|
++orderedStreamCount;
|
|
continue;
|
|
}
|
|
|
|
// A cycle has been found. Record this stream for ordering when all
|
|
// streams in this SCC have been popped from the DFS stack.
|
|
sccStack.insertFront(ps);
|
|
|
|
if (cycleStackMarker > ps->mCycleMarker) {
|
|
// Cycles have been found that involve streams that remain on the stack.
|
|
// Leave mCycleMarker indicating the most downstream (last) stream on
|
|
// the stack known to be part of this SCC. In this way, any searches on
|
|
// other paths that find |ps| will know (without having to traverse from
|
|
// this stream again) that they are part of this SCC (i.e. part of an
|
|
// intersecting cycle).
|
|
ps->mCycleMarker = cycleStackMarker;
|
|
continue;
|
|
}
|
|
|
|
// |ps| is the root of an SCC involving no other streams on dfsStack, the
|
|
// complete SCC has been recorded, and streams in this SCC are part of at
|
|
// least one cycle.
|
|
MOZ_ASSERT(cycleStackMarker == ps->mCycleMarker);
|
|
// If there are DelayNodes in this SCC, then they may break the cycles.
|
|
bool haveDelayNode = false;
|
|
auto next = sccStack.getFirst();
|
|
// Streams in this SCC are identified by mCycleMarker <= cycleStackMarker.
|
|
// (There may be other streams later in sccStack from other incompletely
|
|
// searched SCCs, involving streams still on dfsStack.)
|
|
//
|
|
// DelayNodes in cycles must behave differently from those not in cycles,
|
|
// so all DelayNodes in the SCC must be identified.
|
|
while (next && static_cast<ProcessedMediaStream*>(next)->
|
|
mCycleMarker <= cycleStackMarker) {
|
|
auto ns = next->AsAudioNodeStream();
|
|
// Get next before perhaps removing from list below.
|
|
next = next->getNext();
|
|
if (ns && ns->Engine()->AsDelayNodeEngine()) {
|
|
haveDelayNode = true;
|
|
// DelayNodes break cycles by producing their output in a
|
|
// preprocessing phase; they do not need to be ordered before their
|
|
// consumers. Order them at the tail of mStreams so that they can be
|
|
// handled specially. Do so now, so that DFS ignores them.
|
|
ns->remove();
|
|
ns->mCycleMarker = 0;
|
|
--mFirstCycleBreaker;
|
|
mStreams[mFirstCycleBreaker] = ns;
|
|
}
|
|
}
|
|
auto after_scc = next;
|
|
while ((next = sccStack.getFirst()) != after_scc) {
|
|
next->remove();
|
|
auto removed = static_cast<ProcessedMediaStream*>(next);
|
|
if (haveDelayNode) {
|
|
// Return streams to the DFS stack again (to order and detect cycles
|
|
// without delayNodes). Any of these streams that are still inputs
|
|
// for streams on the visited stack must be returned to the front of
|
|
// the stack to be ordered before their dependents. We know that none
|
|
// of these streams need input from streams on the visited stack, so
|
|
// they can all be searched and ordered before the current stack head
|
|
// is popped.
|
|
removed->mCycleMarker = NOT_VISITED;
|
|
dfsStack.insertFront(removed);
|
|
} else {
|
|
// Streams in cycles without any DelayNodes must be muted, and so do
|
|
// not need input and can be ordered now. They must be ordered before
|
|
// their consumers so that their muted output is available.
|
|
removed->mCycleMarker = IN_MUTED_CYCLE;
|
|
mStreams[orderedStreamCount] = removed;
|
|
++orderedStreamCount;
|
|
}
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(orderedStreamCount == mFirstCycleBreaker);
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::NotifyHasCurrentData(MediaStream* aStream)
|
|
{
|
|
if (!aStream->mNotifiedHasCurrentData && aStream->mHasCurrentData) {
|
|
for (uint32_t j = 0; j < aStream->mListeners.Length(); ++j) {
|
|
MediaStreamListener* l = aStream->mListeners[j];
|
|
l->NotifyHasCurrentData(this);
|
|
}
|
|
aStream->mNotifiedHasCurrentData = true;
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::CreateOrDestroyAudioStreams(MediaStream* aStream)
|
|
{
|
|
MOZ_ASSERT(mRealtime, "Should only attempt to create audio streams in real-time mode");
|
|
|
|
if (aStream->mAudioOutputs.IsEmpty()) {
|
|
aStream->mAudioOutputStreams.Clear();
|
|
return;
|
|
}
|
|
|
|
if (!aStream->GetStreamTracks().GetAndResetTracksDirty() &&
|
|
!aStream->mAudioOutputStreams.IsEmpty()) {
|
|
return;
|
|
}
|
|
|
|
STREAM_LOG(LogLevel::Debug, ("Updating AudioOutputStreams for MediaStream %p", aStream));
|
|
|
|
AutoTArray<bool,2> audioOutputStreamsFound;
|
|
for (uint32_t i = 0; i < aStream->mAudioOutputStreams.Length(); ++i) {
|
|
audioOutputStreamsFound.AppendElement(false);
|
|
}
|
|
|
|
for (StreamTracks::TrackIter tracks(aStream->GetStreamTracks(), MediaSegment::AUDIO);
|
|
!tracks.IsEnded(); tracks.Next()) {
|
|
uint32_t i;
|
|
for (i = 0; i < audioOutputStreamsFound.Length(); ++i) {
|
|
if (aStream->mAudioOutputStreams[i].mTrackID == tracks->GetID()) {
|
|
break;
|
|
}
|
|
}
|
|
if (i < audioOutputStreamsFound.Length()) {
|
|
audioOutputStreamsFound[i] = true;
|
|
} else {
|
|
MediaStream::AudioOutputStream* audioOutputStream =
|
|
aStream->mAudioOutputStreams.AppendElement();
|
|
audioOutputStream->mAudioPlaybackStartTime = mProcessedTime;
|
|
audioOutputStream->mBlockedAudioTime = 0;
|
|
audioOutputStream->mLastTickWritten = 0;
|
|
audioOutputStream->mTrackID = tracks->GetID();
|
|
|
|
bool switching = false;
|
|
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
switching = CurrentDriver()->Switching();
|
|
}
|
|
|
|
if (!CurrentDriver()->AsAudioCallbackDriver() &&
|
|
!switching) {
|
|
MonitorAutoLock mon(mMonitor);
|
|
if (mLifecycleState == LIFECYCLE_RUNNING) {
|
|
AudioCallbackDriver* driver = new AudioCallbackDriver(this);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int32_t i = audioOutputStreamsFound.Length() - 1; i >= 0; --i) {
|
|
if (!audioOutputStreamsFound[i]) {
|
|
aStream->mAudioOutputStreams.RemoveElementAt(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
StreamTime
|
|
MediaStreamGraphImpl::PlayAudio(MediaStream* aStream)
|
|
{
|
|
MOZ_ASSERT(mRealtime, "Should only attempt to play audio in realtime mode");
|
|
|
|
float volume = 0.0f;
|
|
for (uint32_t i = 0; i < aStream->mAudioOutputs.Length(); ++i) {
|
|
volume += aStream->mAudioOutputs[i].mVolume;
|
|
}
|
|
|
|
StreamTime ticksWritten = 0;
|
|
|
|
for (uint32_t i = 0; i < aStream->mAudioOutputStreams.Length(); ++i) {
|
|
ticksWritten = 0;
|
|
|
|
MediaStream::AudioOutputStream& audioOutput = aStream->mAudioOutputStreams[i];
|
|
StreamTracks::Track* track = aStream->mTracks.FindTrack(audioOutput.mTrackID);
|
|
AudioSegment* audio = track->Get<AudioSegment>();
|
|
AudioSegment output;
|
|
|
|
StreamTime offset = aStream->GraphTimeToStreamTime(mProcessedTime);
|
|
|
|
// We don't update aStream->mTracksStartTime here to account for time spent
|
|
// blocked. Instead, we'll update it in UpdateCurrentTimeForStreams after
|
|
// the blocked period has completed. But we do need to make sure we play
|
|
// from the right offsets in the stream buffer, even if we've already
|
|
// written silence for some amount of blocked time after the current time.
|
|
GraphTime t = mProcessedTime;
|
|
while (t < mStateComputedTime) {
|
|
bool blocked = t >= aStream->mStartBlocking;
|
|
GraphTime end = blocked ? mStateComputedTime : aStream->mStartBlocking;
|
|
NS_ASSERTION(end <= mStateComputedTime, "mStartBlocking is wrong!");
|
|
|
|
// Check how many ticks of sound we can provide if we are blocked some
|
|
// time in the middle of this cycle.
|
|
StreamTime toWrite = end - t;
|
|
|
|
if (blocked) {
|
|
output.InsertNullDataAtStart(toWrite);
|
|
ticksWritten += toWrite;
|
|
STREAM_LOG(LogLevel::Verbose, ("MediaStream %p writing %ld blocking-silence samples for %f to %f (%ld to %ld)\n",
|
|
aStream, toWrite, MediaTimeToSeconds(t), MediaTimeToSeconds(end),
|
|
offset, offset + toWrite));
|
|
} else {
|
|
StreamTime endTicksNeeded = offset + toWrite;
|
|
StreamTime endTicksAvailable = audio->GetDuration();
|
|
|
|
if (endTicksNeeded <= endTicksAvailable) {
|
|
STREAM_LOG(LogLevel::Verbose,
|
|
("MediaStream %p writing %ld samples for %f to %f "
|
|
"(samples %ld to %ld)\n",
|
|
aStream, toWrite, MediaTimeToSeconds(t),
|
|
MediaTimeToSeconds(end), offset, endTicksNeeded));
|
|
output.AppendSlice(*audio, offset, endTicksNeeded);
|
|
ticksWritten += toWrite;
|
|
offset = endTicksNeeded;
|
|
} else {
|
|
// MOZ_ASSERT(track->IsEnded(), "Not enough data, and track not ended.");
|
|
// If we are at the end of the track, maybe write the remaining
|
|
// samples, and pad with/output silence.
|
|
if (endTicksNeeded > endTicksAvailable &&
|
|
offset < endTicksAvailable) {
|
|
output.AppendSlice(*audio, offset, endTicksAvailable);
|
|
STREAM_LOG(LogLevel::Verbose,
|
|
("MediaStream %p writing %ld samples for %f to %f "
|
|
"(samples %ld to %ld)\n",
|
|
aStream, toWrite, MediaTimeToSeconds(t),
|
|
MediaTimeToSeconds(end), offset, endTicksNeeded));
|
|
uint32_t available = endTicksAvailable - offset;
|
|
ticksWritten += available;
|
|
toWrite -= available;
|
|
offset = endTicksAvailable;
|
|
}
|
|
output.AppendNullData(toWrite);
|
|
STREAM_LOG(LogLevel::Verbose,
|
|
("MediaStream %p writing %ld padding slsamples for %f to "
|
|
"%f (samples %ld to %ld)\n",
|
|
aStream, toWrite, MediaTimeToSeconds(t),
|
|
MediaTimeToSeconds(end), offset, endTicksNeeded));
|
|
ticksWritten += toWrite;
|
|
}
|
|
output.ApplyVolume(volume);
|
|
}
|
|
t = end;
|
|
}
|
|
audioOutput.mLastTickWritten = offset;
|
|
|
|
// Need unique id for stream & track - and we want it to match the inserter
|
|
output.WriteTo(LATENCY_STREAM_ID(aStream, track->GetID()),
|
|
mMixer, AudioChannelCount(),
|
|
mSampleRate);
|
|
}
|
|
return ticksWritten;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::OpenAudioInputImpl(int aID,
|
|
AudioDataListener *aListener)
|
|
{
|
|
// Bug 1238038 Need support for multiple mics at once
|
|
if (mInputDeviceUsers.Count() > 0 &&
|
|
!mInputDeviceUsers.Get(aListener, nullptr)) {
|
|
NS_ASSERTION(false, "Input from multiple mics not yet supported; bug 1238038");
|
|
// Need to support separate input-only AudioCallback drivers; they'll
|
|
// call us back on "other" threads. We will need to echo-cancel them, though.
|
|
return;
|
|
}
|
|
mInputWanted = true;
|
|
|
|
// Add to count of users for this ID.
|
|
// XXX Since we can't rely on IDs staying valid (ugh), use the listener as
|
|
// a stand-in for the ID. Fix as part of support for multiple-captures
|
|
// (Bug 1238038)
|
|
uint32_t count = 0;
|
|
mInputDeviceUsers.Get(aListener, &count); // ok if this fails
|
|
count++;
|
|
mInputDeviceUsers.Put(aListener, count); // creates a new entry in the hash if needed
|
|
|
|
if (count == 1) { // first open for this listener
|
|
// aID is a cubeb_devid, and we assume that opaque ptr is valid until
|
|
// we close cubeb.
|
|
mInputDeviceID = aID;
|
|
mAudioInputs.AppendElement(aListener); // always monitor speaker data
|
|
|
|
// Switch Drivers since we're adding input (to input-only or full-duplex)
|
|
MonitorAutoLock mon(mMonitor);
|
|
if (mLifecycleState == LIFECYCLE_RUNNING) {
|
|
AudioCallbackDriver* driver = new AudioCallbackDriver(this);
|
|
STREAM_LOG(LogLevel::Debug, ("OpenAudioInput: starting new AudioCallbackDriver(input) %p", driver));
|
|
LIFECYCLE_LOG("OpenAudioInput: starting new AudioCallbackDriver(input) %p", driver);
|
|
driver->SetInputListener(aListener);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
} else {
|
|
STREAM_LOG(LogLevel::Error, ("OpenAudioInput in shutdown!"));
|
|
LIFECYCLE_LOG("OpenAudioInput in shutdown!");
|
|
NS_ASSERTION(false, "Can't open cubeb inputs in shutdown");
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
MediaStreamGraphImpl::OpenAudioInput(int aID,
|
|
AudioDataListener *aListener)
|
|
{
|
|
// So, so, so annoying. Can't AppendMessage except on Mainthread
|
|
if (!NS_IsMainThread()) {
|
|
NS_DispatchToMainThread(WrapRunnable(this,
|
|
&MediaStreamGraphImpl::OpenAudioInput,
|
|
aID, RefPtr<AudioDataListener>(aListener)));
|
|
return NS_OK;
|
|
}
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStreamGraphImpl *aGraph, int aID,
|
|
AudioDataListener *aListener) :
|
|
ControlMessage(nullptr), mGraph(aGraph), mID(aID), mListener(aListener) {}
|
|
virtual void Run()
|
|
{
|
|
mGraph->OpenAudioInputImpl(mID, mListener);
|
|
}
|
|
MediaStreamGraphImpl *mGraph;
|
|
int mID;
|
|
RefPtr<AudioDataListener> mListener;
|
|
};
|
|
// XXX Check not destroyed!
|
|
this->AppendMessage(MakeUnique<Message>(this, aID, aListener));
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::CloseAudioInputImpl(AudioDataListener *aListener)
|
|
{
|
|
uint32_t count;
|
|
DebugOnly<bool> result = mInputDeviceUsers.Get(aListener, &count);
|
|
MOZ_ASSERT(result);
|
|
if (--count > 0) {
|
|
mInputDeviceUsers.Put(aListener, count);
|
|
return; // still in use
|
|
}
|
|
mInputDeviceUsers.Remove(aListener);
|
|
mInputDeviceID = -1;
|
|
mInputWanted = false;
|
|
AudioCallbackDriver *driver = CurrentDriver()->AsAudioCallbackDriver();
|
|
if (driver) {
|
|
driver->RemoveInputListener(aListener);
|
|
}
|
|
mAudioInputs.RemoveElement(aListener);
|
|
|
|
// Switch Drivers since we're adding or removing an input (to nothing/system or output only)
|
|
bool shouldAEC = false;
|
|
bool audioTrackPresent = AudioTrackPresent(shouldAEC);
|
|
|
|
MonitorAutoLock mon(mMonitor);
|
|
if (mLifecycleState == LIFECYCLE_RUNNING) {
|
|
GraphDriver* driver;
|
|
if (audioTrackPresent) {
|
|
// We still have audio output
|
|
STREAM_LOG(LogLevel::Debug, ("CloseInput: output present (AudioCallback)"));
|
|
|
|
driver = new AudioCallbackDriver(this);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
} else if (CurrentDriver()->AsAudioCallbackDriver()) {
|
|
STREAM_LOG(LogLevel::Debug, ("CloseInput: no output present (SystemClockCallback)"));
|
|
|
|
driver = new SystemClockDriver(this);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
} // else SystemClockDriver->SystemClockDriver, no switch
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::CloseAudioInput(AudioDataListener *aListener)
|
|
{
|
|
// So, so, so annoying. Can't AppendMessage except on Mainthread
|
|
if (!NS_IsMainThread()) {
|
|
NS_DispatchToMainThread(WrapRunnable(this,
|
|
&MediaStreamGraphImpl::CloseAudioInput,
|
|
RefPtr<AudioDataListener>(aListener)));
|
|
return;
|
|
}
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStreamGraphImpl *aGraph, AudioDataListener *aListener) :
|
|
ControlMessage(nullptr), mGraph(aGraph), mListener(aListener) {}
|
|
virtual void Run()
|
|
{
|
|
mGraph->CloseAudioInputImpl(mListener);
|
|
}
|
|
MediaStreamGraphImpl *mGraph;
|
|
RefPtr<AudioDataListener> mListener;
|
|
};
|
|
this->AppendMessage(MakeUnique<Message>(this, aListener));
|
|
}
|
|
|
|
|
|
// All AudioInput listeners get the same speaker data (at least for now).
|
|
void
|
|
MediaStreamGraph::NotifyOutputData(AudioDataValue* aBuffer, size_t aFrames,
|
|
TrackRate aRate, uint32_t aChannels)
|
|
{
|
|
for (auto& listener : mAudioInputs) {
|
|
listener->NotifyOutputData(this, aBuffer, aFrames, aRate, aChannels);
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraph::AssertOnGraphThreadOrNotRunning() const
|
|
{
|
|
// either we're on the right thread (and calling CurrentDriver() is safe),
|
|
// or we're going to assert anyways, so don't cross-check CurrentDriver
|
|
#ifdef DEBUG
|
|
MediaStreamGraphImpl const * graph =
|
|
static_cast<MediaStreamGraphImpl const *>(this);
|
|
// if all the safety checks fail, assert we own the monitor
|
|
if (!graph->mDriver->OnThread()) {
|
|
if (!(graph->mDetectedNotRunning &&
|
|
graph->mLifecycleState > MediaStreamGraphImpl::LIFECYCLE_RUNNING &&
|
|
NS_IsMainThread())) {
|
|
graph->mMonitor.AssertCurrentThreadOwns();
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
bool
|
|
MediaStreamGraphImpl::ShouldUpdateMainThread()
|
|
{
|
|
if (mRealtime) {
|
|
return true;
|
|
}
|
|
|
|
TimeStamp now = TimeStamp::Now();
|
|
if ((now - mLastMainThreadUpdate).ToMilliseconds() > CurrentDriver()->IterationDuration()) {
|
|
mLastMainThreadUpdate = now;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::PrepareUpdatesToMainThreadState(bool aFinalUpdate)
|
|
{
|
|
mMonitor.AssertCurrentThreadOwns();
|
|
|
|
// We don't want to frequently update the main thread about timing update
|
|
// when we are not running in realtime.
|
|
if (aFinalUpdate || ShouldUpdateMainThread()) {
|
|
// Strip updates that will be obsoleted below, so as to keep the length of
|
|
// mStreamUpdates sane.
|
|
size_t keptUpdateCount = 0;
|
|
for (size_t i = 0; i < mStreamUpdates.Length(); ++i) {
|
|
MediaStream* stream = mStreamUpdates[i].mStream;
|
|
// RemoveStreamGraphThread() clears mStream in updates for
|
|
// streams that are removed from the graph.
|
|
MOZ_ASSERT(!stream || stream->GraphImpl() == this);
|
|
if (!stream || stream->MainThreadNeedsUpdates()) {
|
|
// Discard this update as it has either been cleared when the stream
|
|
// was destroyed or there will be a newer update below.
|
|
continue;
|
|
}
|
|
if (keptUpdateCount != i) {
|
|
mStreamUpdates[keptUpdateCount] = Move(mStreamUpdates[i]);
|
|
MOZ_ASSERT(!mStreamUpdates[i].mStream);
|
|
}
|
|
++keptUpdateCount;
|
|
}
|
|
mStreamUpdates.TruncateLength(keptUpdateCount);
|
|
|
|
mStreamUpdates.SetCapacity(mStreamUpdates.Length() + mStreams.Length() +
|
|
mSuspendedStreams.Length());
|
|
for (MediaStream* stream : AllStreams()) {
|
|
if (!stream->MainThreadNeedsUpdates()) {
|
|
continue;
|
|
}
|
|
StreamUpdate* update = mStreamUpdates.AppendElement();
|
|
update->mStream = stream;
|
|
// No blocking to worry about here, since we've passed
|
|
// UpdateCurrentTimeForStreams.
|
|
update->mNextMainThreadCurrentTime =
|
|
stream->GraphTimeToStreamTime(mProcessedTime);
|
|
update->mNextMainThreadFinished = stream->mNotifiedFinished;
|
|
}
|
|
if (!mPendingUpdateRunnables.IsEmpty()) {
|
|
mUpdateRunnables.AppendElements(Move(mPendingUpdateRunnables));
|
|
}
|
|
}
|
|
|
|
// If this is the final update, then a stable state event will soon be
|
|
// posted just before this thread finishes, and so there is no need to also
|
|
// post here.
|
|
if (!aFinalUpdate &&
|
|
// Don't send the message to the main thread if it's not going to have
|
|
// any work to do.
|
|
!(mUpdateRunnables.IsEmpty() && mStreamUpdates.IsEmpty())) {
|
|
EnsureStableStateEventPosted();
|
|
}
|
|
}
|
|
|
|
GraphTime
|
|
MediaStreamGraphImpl::RoundUpToNextAudioBlock(GraphTime aTime)
|
|
{
|
|
StreamTime ticks = aTime;
|
|
uint64_t block = ticks >> WEBAUDIO_BLOCK_SIZE_BITS;
|
|
uint64_t nextBlock = block + 1;
|
|
StreamTime nextTicks = nextBlock << WEBAUDIO_BLOCK_SIZE_BITS;
|
|
return nextTicks;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::ProduceDataForStreamsBlockByBlock(uint32_t aStreamIndex,
|
|
TrackRate aSampleRate)
|
|
{
|
|
MOZ_ASSERT(aStreamIndex <= mFirstCycleBreaker,
|
|
"Cycle breaker is not AudioNodeStream?");
|
|
GraphTime t = mProcessedTime;
|
|
while (t < mStateComputedTime) {
|
|
GraphTime next = RoundUpToNextAudioBlock(t);
|
|
for (uint32_t i = mFirstCycleBreaker; i < mStreams.Length(); ++i) {
|
|
auto ns = static_cast<AudioNodeStream*>(mStreams[i]);
|
|
MOZ_ASSERT(ns->AsAudioNodeStream());
|
|
ns->ProduceOutputBeforeInput(t);
|
|
}
|
|
for (uint32_t i = aStreamIndex; i < mStreams.Length(); ++i) {
|
|
ProcessedMediaStream* ps = mStreams[i]->AsProcessedStream();
|
|
if (ps) {
|
|
ps->ProcessInput(t, next,
|
|
(next == mStateComputedTime) ? ProcessedMediaStream::ALLOW_FINISH : 0);
|
|
}
|
|
}
|
|
t = next;
|
|
}
|
|
NS_ASSERTION(t == mStateComputedTime,
|
|
"Something went wrong with rounding to block boundaries");
|
|
}
|
|
|
|
bool
|
|
MediaStreamGraphImpl::AllFinishedStreamsNotified()
|
|
{
|
|
for (MediaStream* stream : AllStreams()) {
|
|
if (stream->mFinished && !stream->mNotifiedFinished) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::RunMessageAfterProcessing(UniquePtr<ControlMessage> aMessage)
|
|
{
|
|
MOZ_ASSERT(CurrentDriver()->OnThread());
|
|
|
|
if (mFrontMessageQueue.IsEmpty()) {
|
|
mFrontMessageQueue.AppendElement();
|
|
}
|
|
|
|
// Only one block is used for messages from the graph thread.
|
|
MOZ_ASSERT(mFrontMessageQueue.Length() == 1);
|
|
mFrontMessageQueue[0].mMessages.AppendElement(Move(aMessage));
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::RunMessagesInQueue()
|
|
{
|
|
// Calculate independent action times for each batch of messages (each
|
|
// batch corresponding to an event loop task). This isolates the performance
|
|
// of different scripts to some extent.
|
|
for (uint32_t i = 0; i < mFrontMessageQueue.Length(); ++i) {
|
|
nsTArray<UniquePtr<ControlMessage>>& messages = mFrontMessageQueue[i].mMessages;
|
|
|
|
for (uint32_t j = 0; j < messages.Length(); ++j) {
|
|
messages[j]->Run();
|
|
}
|
|
}
|
|
mFrontMessageQueue.Clear();
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::UpdateGraph(GraphTime aEndBlockingDecisions)
|
|
{
|
|
MOZ_ASSERT(aEndBlockingDecisions >= mProcessedTime);
|
|
// The next state computed time can be the same as the previous: it
|
|
// means the driver would be have been blocking indefinitly, but the graph has
|
|
// been woken up right after having been to sleep.
|
|
MOZ_ASSERT(aEndBlockingDecisions >= mStateComputedTime);
|
|
|
|
UpdateStreamOrder();
|
|
|
|
bool ensureNextIteration = false;
|
|
|
|
// Grab pending stream input and compute blocking time
|
|
for (MediaStream* stream : mStreams) {
|
|
if (SourceMediaStream* is = stream->AsSourceStream()) {
|
|
ExtractPendingInput(is, aEndBlockingDecisions, &ensureNextIteration);
|
|
}
|
|
|
|
if (stream->mFinished) {
|
|
// The stream's not suspended, and since it's finished, underruns won't
|
|
// stop it playing out. So there's no blocking other than what we impose
|
|
// here.
|
|
GraphTime endTime = stream->GetStreamTracks().GetAllTracksEnd() +
|
|
stream->mTracksStartTime;
|
|
if (endTime <= mStateComputedTime) {
|
|
STREAM_LOG(LogLevel::Verbose, ("MediaStream %p is blocked due to being finished", stream));
|
|
stream->mStartBlocking = mStateComputedTime;
|
|
} else {
|
|
STREAM_LOG(LogLevel::Verbose, ("MediaStream %p is finished, but not blocked yet (end at %f, with blocking at %f)",
|
|
stream, MediaTimeToSeconds(stream->GetTracksEnd()),
|
|
MediaTimeToSeconds(endTime)));
|
|
// Data can't be added to a finished stream, so underruns are irrelevant.
|
|
stream->mStartBlocking = std::min(endTime, aEndBlockingDecisions);
|
|
}
|
|
} else {
|
|
stream->mStartBlocking = WillUnderrun(stream, aEndBlockingDecisions);
|
|
}
|
|
}
|
|
|
|
for (MediaStream* stream : mSuspendedStreams) {
|
|
stream->mStartBlocking = mStateComputedTime;
|
|
}
|
|
|
|
// The loop is woken up so soon that IterationEnd() barely advances and we
|
|
// end up having aEndBlockingDecision == mStateComputedTime.
|
|
// Since stream blocking is computed in the interval of
|
|
// [mStateComputedTime, aEndBlockingDecision), it won't be computed at all.
|
|
// We should ensure next iteration so that pending blocking changes will be
|
|
// computed in next loop.
|
|
if (ensureNextIteration ||
|
|
aEndBlockingDecisions == mStateComputedTime) {
|
|
EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::Process()
|
|
{
|
|
// Play stream contents.
|
|
bool allBlockedForever = true;
|
|
// True when we've done ProcessInput for all processed streams.
|
|
bool doneAllProducing = false;
|
|
// This is the number of frame that are written to the AudioStreams, for
|
|
// this cycle.
|
|
StreamTime ticksPlayed = 0;
|
|
|
|
mMixer.StartMixing();
|
|
|
|
// Figure out what each stream wants to do
|
|
for (uint32_t i = 0; i < mStreams.Length(); ++i) {
|
|
MediaStream* stream = mStreams[i];
|
|
if (!doneAllProducing) {
|
|
ProcessedMediaStream* ps = stream->AsProcessedStream();
|
|
if (ps) {
|
|
AudioNodeStream* n = stream->AsAudioNodeStream();
|
|
if (n) {
|
|
#ifdef DEBUG
|
|
// Verify that the sampling rate for all of the following streams is the same
|
|
for (uint32_t j = i + 1; j < mStreams.Length(); ++j) {
|
|
AudioNodeStream* nextStream = mStreams[j]->AsAudioNodeStream();
|
|
if (nextStream) {
|
|
MOZ_ASSERT(n->SampleRate() == nextStream->SampleRate(),
|
|
"All AudioNodeStreams in the graph must have the same sampling rate");
|
|
}
|
|
}
|
|
#endif
|
|
// Since an AudioNodeStream is present, go ahead and
|
|
// produce audio block by block for all the rest of the streams.
|
|
ProduceDataForStreamsBlockByBlock(i, n->SampleRate());
|
|
doneAllProducing = true;
|
|
} else {
|
|
ps->ProcessInput(mProcessedTime, mStateComputedTime,
|
|
ProcessedMediaStream::ALLOW_FINISH);
|
|
NS_ASSERTION(stream->mTracks.GetEnd() >=
|
|
GraphTimeToStreamTimeWithBlocking(stream, mStateComputedTime),
|
|
"Stream did not produce enough data");
|
|
}
|
|
}
|
|
}
|
|
NotifyHasCurrentData(stream);
|
|
// Only playback audio and video in real-time mode
|
|
if (mRealtime) {
|
|
CreateOrDestroyAudioStreams(stream);
|
|
if (CurrentDriver()->AsAudioCallbackDriver()) {
|
|
StreamTime ticksPlayedForThisStream = PlayAudio(stream);
|
|
if (!ticksPlayed) {
|
|
ticksPlayed = ticksPlayedForThisStream;
|
|
} else {
|
|
MOZ_ASSERT(!ticksPlayedForThisStream || ticksPlayedForThisStream == ticksPlayed,
|
|
"Each stream should have the same number of frame.");
|
|
}
|
|
}
|
|
}
|
|
if (stream->mStartBlocking > mProcessedTime) {
|
|
allBlockedForever = false;
|
|
}
|
|
}
|
|
|
|
if (CurrentDriver()->AsAudioCallbackDriver() && ticksPlayed) {
|
|
mMixer.FinishMixing();
|
|
}
|
|
|
|
if (!allBlockedForever) {
|
|
EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
bool
|
|
MediaStreamGraphImpl::UpdateMainThreadState()
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
bool finalUpdate = mForceShutDown ||
|
|
(mProcessedTime >= mEndTime && AllFinishedStreamsNotified()) ||
|
|
(IsEmpty() && mBackMessageQueue.IsEmpty());
|
|
PrepareUpdatesToMainThreadState(finalUpdate);
|
|
if (finalUpdate) {
|
|
// Enter shutdown mode when this iteration is completed.
|
|
// No need to Destroy streams here. The main-thread owner of each
|
|
// stream is responsible for calling Destroy on them.
|
|
return false;
|
|
}
|
|
|
|
CurrentDriver()->WaitForNextIteration();
|
|
|
|
SwapMessageQueues();
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
MediaStreamGraphImpl::OneIteration(GraphTime aStateEnd)
|
|
{
|
|
// Process graph message from the main thread for this iteration.
|
|
RunMessagesInQueue();
|
|
|
|
UpdateStreamOrder();
|
|
|
|
GraphTime stateEnd = std::min(aStateEnd, mEndTime);
|
|
|
|
UpdateGraph(stateEnd);
|
|
|
|
mStateComputedTime = stateEnd;
|
|
|
|
Process();
|
|
|
|
GraphTime oldProcessedTime = mProcessedTime;
|
|
mProcessedTime = stateEnd;
|
|
|
|
UpdateCurrentTimeForStreams(oldProcessedTime);
|
|
|
|
ProcessChunkMetadata(oldProcessedTime);
|
|
|
|
// Process graph messages queued from RunMessageAfterProcessing() on this
|
|
// thread during the iteration.
|
|
RunMessagesInQueue();
|
|
|
|
return UpdateMainThreadState();
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::ApplyStreamUpdate(StreamUpdate* aUpdate)
|
|
{
|
|
mMonitor.AssertCurrentThreadOwns();
|
|
|
|
MediaStream* stream = aUpdate->mStream;
|
|
if (!stream)
|
|
return;
|
|
stream->mMainThreadCurrentTime = aUpdate->mNextMainThreadCurrentTime;
|
|
stream->mMainThreadFinished = aUpdate->mNextMainThreadFinished;
|
|
|
|
if (stream->ShouldNotifyStreamFinished()) {
|
|
stream->NotifyMainThreadListeners();
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::ForceShutDown(ShutdownTicket* aShutdownTicket)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Must be called on main thread");
|
|
STREAM_LOG(LogLevel::Debug, ("MediaStreamGraph %p ForceShutdown", this));
|
|
|
|
MonitorAutoLock lock(mMonitor);
|
|
if (aShutdownTicket) {
|
|
MOZ_ASSERT(!mForceShutdownTicket);
|
|
// Avoid waiting forever for a graph to shut down
|
|
// synchronously. Reports are that some 3rd-party audio drivers
|
|
// occasionally hang in shutdown (both for us and Chrome).
|
|
mShutdownTimer = do_CreateInstance(NS_TIMER_CONTRACTID);
|
|
if (!mShutdownTimer) {
|
|
return;
|
|
}
|
|
mShutdownTimer->InitWithCallback(this,
|
|
MediaStreamGraph::AUDIO_CALLBACK_DRIVER_SHUTDOWN_TIMEOUT,
|
|
nsITimer::TYPE_ONE_SHOT);
|
|
}
|
|
mForceShutDown = true;
|
|
mForceShutdownTicket = aShutdownTicket;
|
|
if (mLifecycleState == LIFECYCLE_THREAD_NOT_STARTED) {
|
|
// We *could* have just sent this a message to start up, so don't
|
|
// yank the rug out from under it. Tell it to startup and let it
|
|
// shut down.
|
|
RefPtr<GraphDriver> driver = CurrentDriver();
|
|
MonitorAutoUnlock unlock(mMonitor);
|
|
driver->Start();
|
|
}
|
|
EnsureNextIterationLocked();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
MediaStreamGraphImpl::Notify(nsITimer* aTimer)
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
NS_ASSERTION(!mForceShutdownTicket, "MediaStreamGraph took too long to shut down!");
|
|
// Sigh, graph took too long to shut down. Stop blocking system
|
|
// shutdown and hope all is well.
|
|
mForceShutdownTicket = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/* static */ StaticRefPtr<nsIAsyncShutdownBlocker> gMediaStreamGraphShutdownBlocker;
|
|
|
|
namespace {
|
|
|
|
class MediaStreamGraphShutDownRunnable : public Runnable {
|
|
public:
|
|
explicit MediaStreamGraphShutDownRunnable(MediaStreamGraphImpl* aGraph)
|
|
: mGraph(aGraph)
|
|
{}
|
|
NS_IMETHOD Run()
|
|
{
|
|
NS_ASSERTION(mGraph->mDetectedNotRunning,
|
|
"We should know the graph thread control loop isn't running!");
|
|
|
|
LIFECYCLE_LOG("Shutting down graph %p", mGraph.get());
|
|
|
|
// We've asserted the graph isn't running. Use mDriver instead of CurrentDriver
|
|
// to avoid thread-safety checks
|
|
#if 0 // AudioCallbackDrivers are released asynchronously anyways
|
|
// XXX a better test would be have setting mDetectedNotRunning make sure
|
|
// any current callback has finished and block future ones -- or just
|
|
// handle it all in Shutdown()!
|
|
if (mGraph->mDriver->AsAudioCallbackDriver()) {
|
|
MOZ_ASSERT(!mGraph->mDriver->AsAudioCallbackDriver()->InCallback());
|
|
}
|
|
#endif
|
|
|
|
mGraph->mDriver->Shutdown(); // This will wait until it's shutdown since
|
|
// we'll start tearing down the graph after this
|
|
|
|
// Safe to access these without the monitor since the graph isn't running.
|
|
// We may be one of several graphs. Drop ticket to eventually unblock shutdown.
|
|
if (mGraph->mShutdownTimer && !mGraph->mForceShutdownTicket) {
|
|
MOZ_ASSERT(false,
|
|
"AudioCallbackDriver took too long to shut down and we let shutdown"
|
|
" continue - freezing and leaking");
|
|
|
|
// The timer fired, so we may be deeper in shutdown now. Block any further
|
|
// teardown and just leak, for safety.
|
|
return NS_OK;
|
|
}
|
|
mGraph->mForceShutdownTicket = nullptr;
|
|
|
|
// We can't block past the final LIFECYCLE_WAITING_FOR_STREAM_DESTRUCTION
|
|
// stage, since completion of that stage requires all streams to be freed,
|
|
// which requires shutdown to proceed.
|
|
|
|
// mGraph's thread is not running so it's OK to do whatever here
|
|
if (mGraph->IsEmpty()) {
|
|
// mGraph is no longer needed, so delete it.
|
|
mGraph->Destroy();
|
|
} else {
|
|
// The graph is not empty. We must be in a forced shutdown, or a
|
|
// non-realtime graph that has finished processing. Some later
|
|
// AppendMessage will detect that the manager has been emptied, and
|
|
// delete it.
|
|
NS_ASSERTION(mGraph->mForceShutDown || !mGraph->mRealtime,
|
|
"Not in forced shutdown?");
|
|
for (MediaStream* stream : mGraph->AllStreams()) {
|
|
// Clean up all MediaSegments since we cannot release Images too
|
|
// late during shutdown.
|
|
if (SourceMediaStream* source = stream->AsSourceStream()) {
|
|
// Finishing a SourceStream prevents new data from being appended.
|
|
source->Finish();
|
|
}
|
|
stream->GetStreamTracks().Clear();
|
|
}
|
|
|
|
mGraph->mLifecycleState =
|
|
MediaStreamGraphImpl::LIFECYCLE_WAITING_FOR_STREAM_DESTRUCTION;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
private:
|
|
RefPtr<MediaStreamGraphImpl> mGraph;
|
|
};
|
|
|
|
class MediaStreamGraphStableStateRunnable : public Runnable {
|
|
public:
|
|
explicit MediaStreamGraphStableStateRunnable(MediaStreamGraphImpl* aGraph,
|
|
bool aSourceIsMSG)
|
|
: mGraph(aGraph)
|
|
, mSourceIsMSG(aSourceIsMSG)
|
|
{
|
|
}
|
|
NS_IMETHOD Run() override
|
|
{
|
|
if (mGraph) {
|
|
mGraph->RunInStableState(mSourceIsMSG);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
private:
|
|
RefPtr<MediaStreamGraphImpl> mGraph;
|
|
bool mSourceIsMSG;
|
|
};
|
|
|
|
/*
|
|
* Control messages forwarded from main thread to graph manager thread
|
|
*/
|
|
class CreateMessage : public ControlMessage {
|
|
public:
|
|
explicit CreateMessage(MediaStream* aStream) : ControlMessage(aStream) {}
|
|
void Run() override
|
|
{
|
|
mStream->GraphImpl()->AddStreamGraphThread(mStream);
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
// Make sure to run this message during shutdown too, to make sure
|
|
// that we balance the number of streams registered with the graph
|
|
// as they're destroyed during shutdown.
|
|
Run();
|
|
}
|
|
};
|
|
|
|
} // namespace
|
|
|
|
void
|
|
MediaStreamGraphImpl::RunInStableState(bool aSourceIsMSG)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Must be called on main thread");
|
|
|
|
nsTArray<nsCOMPtr<nsIRunnable> > runnables;
|
|
// When we're doing a forced shutdown, pending control messages may be
|
|
// run on the main thread via RunDuringShutdown. Those messages must
|
|
// run without the graph monitor being held. So, we collect them here.
|
|
nsTArray<UniquePtr<ControlMessage>> controlMessagesToRunDuringShutdown;
|
|
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
if (aSourceIsMSG) {
|
|
MOZ_ASSERT(mPostedRunInStableStateEvent);
|
|
mPostedRunInStableStateEvent = false;
|
|
}
|
|
|
|
#ifdef ENABLE_LIFECYCLE_LOG
|
|
// This should be kept in sync with the LifecycleState enum in
|
|
// MediaStreamGraphImpl.h
|
|
const char * LifecycleState_str[] = {
|
|
"LIFECYCLE_THREAD_NOT_STARTED",
|
|
"LIFECYCLE_RUNNING",
|
|
"LIFECYCLE_WAITING_FOR_MAIN_THREAD_CLEANUP",
|
|
"LIFECYCLE_WAITING_FOR_THREAD_SHUTDOWN",
|
|
"LIFECYCLE_WAITING_FOR_STREAM_DESTRUCTION"
|
|
};
|
|
|
|
if (mLifecycleState != LIFECYCLE_RUNNING) {
|
|
LIFECYCLE_LOG("Running %p in stable state. Current state: %s\n",
|
|
this, LifecycleState_str[mLifecycleState]);
|
|
}
|
|
#endif
|
|
|
|
runnables.SwapElements(mUpdateRunnables);
|
|
for (uint32_t i = 0; i < mStreamUpdates.Length(); ++i) {
|
|
StreamUpdate* update = &mStreamUpdates[i];
|
|
if (update->mStream) {
|
|
ApplyStreamUpdate(update);
|
|
}
|
|
}
|
|
mStreamUpdates.Clear();
|
|
|
|
if (mCurrentTaskMessageQueue.IsEmpty()) {
|
|
if (mLifecycleState == LIFECYCLE_WAITING_FOR_MAIN_THREAD_CLEANUP && IsEmpty()) {
|
|
// Complete shutdown. First, ensure that this graph is no longer used.
|
|
// A new graph graph will be created if one is needed.
|
|
// Asynchronously clean up old graph. We don't want to do this
|
|
// synchronously because it spins the event loop waiting for threads
|
|
// to shut down, and we don't want to do that in a stable state handler.
|
|
mLifecycleState = LIFECYCLE_WAITING_FOR_THREAD_SHUTDOWN;
|
|
LIFECYCLE_LOG("Sending MediaStreamGraphShutDownRunnable %p", this);
|
|
nsCOMPtr<nsIRunnable> event = new MediaStreamGraphShutDownRunnable(this );
|
|
NS_DispatchToMainThread(event.forget());
|
|
|
|
LIFECYCLE_LOG("Disconnecting MediaStreamGraph %p", this);
|
|
MediaStreamGraphImpl* graph;
|
|
if (gGraphs.Get(uint32_t(mAudioChannel), &graph) && graph == this) {
|
|
// null out gGraph if that's the graph being shut down
|
|
gGraphs.Remove(uint32_t(mAudioChannel));
|
|
}
|
|
}
|
|
} else {
|
|
if (mLifecycleState <= LIFECYCLE_WAITING_FOR_MAIN_THREAD_CLEANUP) {
|
|
MessageBlock* block = mBackMessageQueue.AppendElement();
|
|
block->mMessages.SwapElements(mCurrentTaskMessageQueue);
|
|
EnsureNextIterationLocked();
|
|
}
|
|
|
|
// If the MediaStreamGraph has more messages going to it, try to revive
|
|
// it to process those messages. Don't do this if we're in a forced
|
|
// shutdown or it's a non-realtime graph that has already terminated
|
|
// processing.
|
|
if (mLifecycleState == LIFECYCLE_WAITING_FOR_MAIN_THREAD_CLEANUP &&
|
|
mRealtime && !mForceShutDown) {
|
|
mLifecycleState = LIFECYCLE_RUNNING;
|
|
// Revive the MediaStreamGraph since we have more messages going to it.
|
|
// Note that we need to put messages into its queue before reviving it,
|
|
// or it might exit immediately.
|
|
{
|
|
LIFECYCLE_LOG("Reviving a graph (%p) ! %s\n",
|
|
this, CurrentDriver()->AsAudioCallbackDriver() ? "AudioDriver" :
|
|
"SystemDriver");
|
|
RefPtr<GraphDriver> driver = CurrentDriver();
|
|
MonitorAutoUnlock unlock(mMonitor);
|
|
driver->Revive();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Don't start the thread for a non-realtime graph until it has been
|
|
// explicitly started by StartNonRealtimeProcessing.
|
|
if (mLifecycleState == LIFECYCLE_THREAD_NOT_STARTED &&
|
|
(mRealtime || mNonRealtimeProcessing)) {
|
|
mLifecycleState = LIFECYCLE_RUNNING;
|
|
// Start the thread now. We couldn't start it earlier because
|
|
// the graph might exit immediately on finding it has no streams. The
|
|
// first message for a new graph must create a stream.
|
|
{
|
|
// We should exit the monitor for now, because starting a stream might
|
|
// take locks, and we don't want to deadlock.
|
|
LIFECYCLE_LOG("Starting a graph (%p) ! %s\n",
|
|
this,
|
|
CurrentDriver()->AsAudioCallbackDriver() ? "AudioDriver" :
|
|
"SystemDriver");
|
|
RefPtr<GraphDriver> driver = CurrentDriver();
|
|
MonitorAutoUnlock unlock(mMonitor);
|
|
driver->Start();
|
|
// It's not safe to Shutdown() a thread from StableState, and
|
|
// releasing this may shutdown a SystemClockDriver thread.
|
|
// Proxy the release to outside of StableState.
|
|
NS_ReleaseOnMainThread(driver.forget(), true); // always proxy
|
|
}
|
|
}
|
|
|
|
if ((mForceShutDown || !mRealtime) &&
|
|
mLifecycleState == LIFECYCLE_WAITING_FOR_MAIN_THREAD_CLEANUP) {
|
|
// Defer calls to RunDuringShutdown() to happen while mMonitor is not held.
|
|
for (uint32_t i = 0; i < mBackMessageQueue.Length(); ++i) {
|
|
MessageBlock& mb = mBackMessageQueue[i];
|
|
controlMessagesToRunDuringShutdown.AppendElements(Move(mb.mMessages));
|
|
}
|
|
mBackMessageQueue.Clear();
|
|
MOZ_ASSERT(mCurrentTaskMessageQueue.IsEmpty());
|
|
// Stop MediaStreamGraph threads. Do not clear gGraph since
|
|
// we have outstanding DOM objects that may need it.
|
|
mLifecycleState = LIFECYCLE_WAITING_FOR_THREAD_SHUTDOWN;
|
|
nsCOMPtr<nsIRunnable> event = new MediaStreamGraphShutDownRunnable(this);
|
|
NS_DispatchToMainThread(event.forget());
|
|
}
|
|
|
|
mDetectedNotRunning = mLifecycleState > LIFECYCLE_RUNNING;
|
|
}
|
|
|
|
// Make sure we get a new current time in the next event loop task
|
|
if (!aSourceIsMSG) {
|
|
MOZ_ASSERT(mPostedRunInStableState);
|
|
mPostedRunInStableState = false;
|
|
}
|
|
|
|
for (uint32_t i = 0; i < controlMessagesToRunDuringShutdown.Length(); ++i) {
|
|
controlMessagesToRunDuringShutdown[i]->RunDuringShutdown();
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
mCanRunMessagesSynchronously = mDetectedNotRunning &&
|
|
mLifecycleState >= LIFECYCLE_WAITING_FOR_THREAD_SHUTDOWN;
|
|
#endif
|
|
|
|
for (uint32_t i = 0; i < runnables.Length(); ++i) {
|
|
runnables[i]->Run();
|
|
// "Direct" tail dispatcher are supposed to run immediately following the
|
|
// execution of the current task. So the meta-tasking that we do here in
|
|
// RunInStableState() breaks that abstraction a bit unless we handle it here.
|
|
//
|
|
// This is particularly important because we can end up with a "stream
|
|
// ended" notification immediately following a "stream available" notification,
|
|
// and we need to make sure that the watcher responding to "stream available"
|
|
// has a chance to run before the second notification starts tearing things
|
|
// down.
|
|
AbstractThread::MainThread()->TailDispatcher().DrainDirectTasks();
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
MediaStreamGraphImpl::EnsureRunInStableState()
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "main thread only");
|
|
|
|
if (mPostedRunInStableState)
|
|
return;
|
|
mPostedRunInStableState = true;
|
|
nsCOMPtr<nsIRunnable> event = new MediaStreamGraphStableStateRunnable(this, false);
|
|
nsContentUtils::RunInStableState(event.forget());
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::EnsureStableStateEventPosted()
|
|
{
|
|
mMonitor.AssertCurrentThreadOwns();
|
|
|
|
if (mPostedRunInStableStateEvent)
|
|
return;
|
|
mPostedRunInStableStateEvent = true;
|
|
nsCOMPtr<nsIRunnable> event = new MediaStreamGraphStableStateRunnable(this, true);
|
|
NS_DispatchToMainThread(event.forget());
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::SignalMainThreadCleanup()
|
|
{
|
|
MOZ_ASSERT(mDriver->OnThread());
|
|
|
|
MonitorAutoLock lock(mMonitor);
|
|
STREAM_LOG(LogLevel::Debug, ("MediaStreamGraph %p waiting for main thread cleanup", this));
|
|
mLifecycleState =
|
|
MediaStreamGraphImpl::LIFECYCLE_WAITING_FOR_MAIN_THREAD_CLEANUP;
|
|
EnsureStableStateEventPosted();
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::AppendMessage(UniquePtr<ControlMessage> aMessage)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread(), "main thread only");
|
|
MOZ_ASSERT(!aMessage->GetStream() ||
|
|
!aMessage->GetStream()->IsDestroyed(),
|
|
"Stream already destroyed");
|
|
|
|
if (mDetectedNotRunning &&
|
|
mLifecycleState > LIFECYCLE_WAITING_FOR_MAIN_THREAD_CLEANUP) {
|
|
// The graph control loop is not running and main thread cleanup has
|
|
// happened. From now on we can't append messages to mCurrentTaskMessageQueue,
|
|
// because that will never be processed again, so just RunDuringShutdown
|
|
// this message.
|
|
// This should only happen during forced shutdown, or after a non-realtime
|
|
// graph has finished processing.
|
|
#ifdef DEBUG
|
|
MOZ_ASSERT(mCanRunMessagesSynchronously);
|
|
mCanRunMessagesSynchronously = false;
|
|
#endif
|
|
aMessage->RunDuringShutdown();
|
|
#ifdef DEBUG
|
|
mCanRunMessagesSynchronously = true;
|
|
#endif
|
|
if (IsEmpty() &&
|
|
mLifecycleState >= LIFECYCLE_WAITING_FOR_STREAM_DESTRUCTION) {
|
|
|
|
MediaStreamGraphImpl* graph;
|
|
if (gGraphs.Get(uint32_t(mAudioChannel), &graph) && graph == this) {
|
|
gGraphs.Remove(uint32_t(mAudioChannel));
|
|
}
|
|
|
|
Destroy();
|
|
}
|
|
return;
|
|
}
|
|
|
|
mCurrentTaskMessageQueue.AppendElement(Move(aMessage));
|
|
EnsureRunInStableState();
|
|
}
|
|
|
|
MediaStream::MediaStream()
|
|
: mTracksStartTime(0)
|
|
, mStartBlocking(GRAPH_TIME_MAX)
|
|
, mSuspendedCount(0)
|
|
, mFinished(false)
|
|
, mNotifiedFinished(false)
|
|
, mNotifiedBlocked(false)
|
|
, mHasCurrentData(false)
|
|
, mNotifiedHasCurrentData(false)
|
|
, mMainThreadCurrentTime(0)
|
|
, mMainThreadFinished(false)
|
|
, mFinishedNotificationSent(false)
|
|
, mMainThreadDestroyed(false)
|
|
, mNrOfMainThreadUsers(0)
|
|
, mGraph(nullptr)
|
|
, mAudioChannelType(dom::AudioChannel::Normal)
|
|
{
|
|
MOZ_COUNT_CTOR(MediaStream);
|
|
}
|
|
|
|
MediaStream::~MediaStream()
|
|
{
|
|
MOZ_COUNT_DTOR(MediaStream);
|
|
NS_ASSERTION(mMainThreadDestroyed, "Should have been destroyed already");
|
|
NS_ASSERTION(mMainThreadListeners.IsEmpty(),
|
|
"All main thread listeners should have been removed");
|
|
}
|
|
|
|
size_t
|
|
MediaStream::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
size_t amount = 0;
|
|
|
|
// Not owned:
|
|
// - mGraph - Not reported here
|
|
// - mConsumers - elements
|
|
// Future:
|
|
// - mVideoOutputs - elements
|
|
// - mLastPlayedVideoFrame
|
|
// - mListeners - elements
|
|
// - mAudioOutputStream - elements
|
|
|
|
amount += mTracks.SizeOfExcludingThis(aMallocSizeOf);
|
|
amount += mAudioOutputs.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
amount += mVideoOutputs.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
amount += mListeners.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
amount += mMainThreadListeners.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
amount += mDisabledTracks.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
amount += mConsumers.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
|
|
return amount;
|
|
}
|
|
|
|
size_t
|
|
MediaStream::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
|
|
}
|
|
|
|
MediaStreamGraphImpl*
|
|
MediaStream::GraphImpl()
|
|
{
|
|
return mGraph;
|
|
}
|
|
|
|
MediaStreamGraph*
|
|
MediaStream::Graph()
|
|
{
|
|
return mGraph;
|
|
}
|
|
|
|
void
|
|
MediaStream::SetGraphImpl(MediaStreamGraphImpl* aGraph)
|
|
{
|
|
MOZ_ASSERT(!mGraph, "Should only be called once");
|
|
mGraph = aGraph;
|
|
mAudioChannelType = aGraph->AudioChannel();
|
|
mTracks.InitGraphRate(aGraph->GraphRate());
|
|
}
|
|
|
|
void
|
|
MediaStream::SetGraphImpl(MediaStreamGraph* aGraph)
|
|
{
|
|
MediaStreamGraphImpl* graph = static_cast<MediaStreamGraphImpl*>(aGraph);
|
|
SetGraphImpl(graph);
|
|
}
|
|
|
|
StreamTime
|
|
MediaStream::GraphTimeToStreamTime(GraphTime aTime)
|
|
{
|
|
NS_ASSERTION(mStartBlocking == GraphImpl()->mStateComputedTime ||
|
|
aTime <= mStartBlocking,
|
|
"Incorrectly ignoring blocking!");
|
|
return aTime - mTracksStartTime;
|
|
}
|
|
|
|
GraphTime
|
|
MediaStream::StreamTimeToGraphTime(StreamTime aTime)
|
|
{
|
|
NS_ASSERTION(mStartBlocking == GraphImpl()->mStateComputedTime ||
|
|
aTime + mTracksStartTime <= mStartBlocking,
|
|
"Incorrectly ignoring blocking!");
|
|
return aTime + mTracksStartTime;
|
|
}
|
|
|
|
StreamTime
|
|
MediaStream::GraphTimeToStreamTimeWithBlocking(GraphTime aTime)
|
|
{
|
|
return GraphImpl()->GraphTimeToStreamTimeWithBlocking(this, aTime);
|
|
}
|
|
|
|
void
|
|
MediaStream::FinishOnGraphThread()
|
|
{
|
|
GraphImpl()->FinishStream(this);
|
|
}
|
|
|
|
StreamTracks::Track*
|
|
MediaStream::FindTrack(TrackID aID)
|
|
{
|
|
return mTracks.FindTrack(aID);
|
|
}
|
|
|
|
StreamTracks::Track*
|
|
MediaStream::EnsureTrack(TrackID aTrackId)
|
|
{
|
|
StreamTracks::Track* track = mTracks.FindTrack(aTrackId);
|
|
if (!track) {
|
|
nsAutoPtr<MediaSegment> segment(new AudioSegment());
|
|
for (uint32_t j = 0; j < mListeners.Length(); ++j) {
|
|
MediaStreamListener* l = mListeners[j];
|
|
l->NotifyQueuedTrackChanges(Graph(), aTrackId, 0,
|
|
TrackEventCommand::TRACK_EVENT_CREATED,
|
|
*segment);
|
|
// TODO If we ever need to ensure several tracks at once, we will have to
|
|
// change this.
|
|
l->NotifyFinishedTrackCreation(Graph());
|
|
}
|
|
track = &mTracks.AddTrack(aTrackId, 0, segment.forget());
|
|
}
|
|
return track;
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveAllListenersImpl()
|
|
{
|
|
for (int32_t i = mListeners.Length() - 1; i >= 0; --i) {
|
|
RefPtr<MediaStreamListener> listener = mListeners[i].forget();
|
|
listener->NotifyEvent(GraphImpl(), MediaStreamGraphEvent::EVENT_REMOVED);
|
|
}
|
|
mListeners.Clear();
|
|
}
|
|
|
|
void
|
|
MediaStream::DestroyImpl()
|
|
{
|
|
for (int32_t i = mConsumers.Length() - 1; i >= 0; --i) {
|
|
mConsumers[i]->Disconnect();
|
|
}
|
|
mGraph = nullptr;
|
|
}
|
|
|
|
void
|
|
MediaStream::Destroy()
|
|
{
|
|
NS_ASSERTION(mNrOfMainThreadUsers == 0,
|
|
"Do not mix Destroy() and RegisterUser()/UnregisterUser()");
|
|
// Keep this stream alive until we leave this method
|
|
RefPtr<MediaStream> kungFuDeathGrip = this;
|
|
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(MediaStream* aStream) : ControlMessage(aStream) {}
|
|
void Run() override
|
|
{
|
|
mStream->RemoveAllListenersImpl();
|
|
auto graph = mStream->GraphImpl();
|
|
mStream->DestroyImpl();
|
|
graph->RemoveStreamGraphThread(mStream);
|
|
}
|
|
void RunDuringShutdown() override
|
|
{ Run(); }
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this));
|
|
// Message::RunDuringShutdown may have removed this stream from the graph,
|
|
// but our kungFuDeathGrip above will have kept this stream alive if
|
|
// necessary.
|
|
mMainThreadDestroyed = true;
|
|
}
|
|
|
|
void
|
|
MediaStream::RegisterUser()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
++mNrOfMainThreadUsers;
|
|
}
|
|
|
|
void
|
|
MediaStream::UnregisterUser()
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
--mNrOfMainThreadUsers;
|
|
NS_ASSERTION(mNrOfMainThreadUsers >= 0, "Double-removal of main thread user");
|
|
NS_ASSERTION(!IsDestroyed(), "Do not mix Destroy() and RegisterUser()/UnregisterUser()");
|
|
if (mNrOfMainThreadUsers == 0) {
|
|
Destroy();
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStream::AddAudioOutput(void* aKey)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, void* aKey) : ControlMessage(aStream), mKey(aKey) {}
|
|
void Run() override
|
|
{
|
|
mStream->AddAudioOutputImpl(mKey);
|
|
}
|
|
void* mKey;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aKey));
|
|
}
|
|
|
|
void
|
|
MediaStream::SetAudioOutputVolumeImpl(void* aKey, float aVolume)
|
|
{
|
|
for (uint32_t i = 0; i < mAudioOutputs.Length(); ++i) {
|
|
if (mAudioOutputs[i].mKey == aKey) {
|
|
mAudioOutputs[i].mVolume = aVolume;
|
|
return;
|
|
}
|
|
}
|
|
NS_ERROR("Audio output key not found");
|
|
}
|
|
|
|
void
|
|
MediaStream::SetAudioOutputVolume(void* aKey, float aVolume)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, void* aKey, float aVolume) :
|
|
ControlMessage(aStream), mKey(aKey), mVolume(aVolume) {}
|
|
void Run() override
|
|
{
|
|
mStream->SetAudioOutputVolumeImpl(mKey, mVolume);
|
|
}
|
|
void* mKey;
|
|
float mVolume;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aKey, aVolume));
|
|
}
|
|
|
|
void
|
|
MediaStream::AddAudioOutputImpl(void* aKey)
|
|
{
|
|
STREAM_LOG(LogLevel::Info, ("MediaStream %p Adding AudioOutput for key %p",
|
|
this, aKey));
|
|
mAudioOutputs.AppendElement(AudioOutput(aKey));
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveAudioOutputImpl(void* aKey)
|
|
{
|
|
STREAM_LOG(LogLevel::Info, ("MediaStream %p Removing AudioOutput for key %p",
|
|
this, aKey));
|
|
for (uint32_t i = 0; i < mAudioOutputs.Length(); ++i) {
|
|
if (mAudioOutputs[i].mKey == aKey) {
|
|
mAudioOutputs.RemoveElementAt(i);
|
|
return;
|
|
}
|
|
}
|
|
NS_ERROR("Audio output key not found");
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveAudioOutput(void* aKey)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, void* aKey) :
|
|
ControlMessage(aStream), mKey(aKey) {}
|
|
void Run() override
|
|
{
|
|
mStream->RemoveAudioOutputImpl(mKey);
|
|
}
|
|
void* mKey;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aKey));
|
|
}
|
|
|
|
void
|
|
MediaStream::AddVideoOutputImpl(already_AddRefed<MediaStreamVideoSink> aSink,
|
|
TrackID aID)
|
|
{
|
|
RefPtr<MediaStreamVideoSink> sink = aSink;
|
|
STREAM_LOG(LogLevel::Info, ("MediaStream %p Adding MediaStreamVideoSink %p as output",
|
|
this, sink.get()));
|
|
MOZ_ASSERT(aID != TRACK_NONE);
|
|
for (auto entry : mVideoOutputs) {
|
|
if (entry.mListener == sink &&
|
|
(entry.mTrackID == TRACK_ANY || entry.mTrackID == aID)) {
|
|
return;
|
|
}
|
|
}
|
|
TrackBound<MediaStreamVideoSink>* l = mVideoOutputs.AppendElement();
|
|
l->mListener = sink;
|
|
l->mTrackID = aID;
|
|
|
|
AddDirectTrackListenerImpl(sink.forget(), aID);
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveVideoOutputImpl(MediaStreamVideoSink* aSink,
|
|
TrackID aID)
|
|
{
|
|
STREAM_LOG(LogLevel::Info, ("MediaStream %p Removing MediaStreamVideoSink %p as output",
|
|
this, aSink));
|
|
MOZ_ASSERT(aID != TRACK_NONE);
|
|
|
|
// Ensure that any frames currently queued for playback by the compositor
|
|
// are removed.
|
|
aSink->ClearFrames();
|
|
for (size_t i = 0; i < mVideoOutputs.Length(); ++i) {
|
|
if (mVideoOutputs[i].mListener == aSink &&
|
|
(mVideoOutputs[i].mTrackID == TRACK_ANY ||
|
|
mVideoOutputs[i].mTrackID == aID)) {
|
|
mVideoOutputs.RemoveElementAt(i);
|
|
}
|
|
}
|
|
|
|
RemoveDirectTrackListenerImpl(aSink, aID);
|
|
}
|
|
|
|
void
|
|
MediaStream::AddVideoOutput(MediaStreamVideoSink* aSink, TrackID aID)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, MediaStreamVideoSink* aSink, TrackID aID) :
|
|
ControlMessage(aStream), mSink(aSink), mID(aID) {}
|
|
void Run() override
|
|
{
|
|
mStream->AddVideoOutputImpl(mSink.forget(), mID);
|
|
}
|
|
RefPtr<MediaStreamVideoSink> mSink;
|
|
TrackID mID;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aSink, aID));
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveVideoOutput(MediaStreamVideoSink* aSink, TrackID aID)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, MediaStreamVideoSink* aSink, TrackID aID) :
|
|
ControlMessage(aStream), mSink(aSink), mID(aID) {}
|
|
void Run() override
|
|
{
|
|
mStream->RemoveVideoOutputImpl(mSink, mID);
|
|
}
|
|
RefPtr<MediaStreamVideoSink> mSink;
|
|
TrackID mID;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aSink, aID));
|
|
}
|
|
|
|
void
|
|
MediaStream::Suspend()
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(MediaStream* aStream) :
|
|
ControlMessage(aStream) {}
|
|
void Run() override
|
|
{
|
|
mStream->GraphImpl()->IncrementSuspendCount(mStream);
|
|
}
|
|
};
|
|
|
|
// This can happen if this method has been called asynchronously, and the
|
|
// stream has been destroyed since then.
|
|
if (mMainThreadDestroyed) {
|
|
return;
|
|
}
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this));
|
|
}
|
|
|
|
void
|
|
MediaStream::Resume()
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(MediaStream* aStream) :
|
|
ControlMessage(aStream) {}
|
|
void Run() override
|
|
{
|
|
mStream->GraphImpl()->DecrementSuspendCount(mStream);
|
|
}
|
|
};
|
|
|
|
// This can happen if this method has been called asynchronously, and the
|
|
// stream has been destroyed since then.
|
|
if (mMainThreadDestroyed) {
|
|
return;
|
|
}
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this));
|
|
}
|
|
|
|
void
|
|
MediaStream::AddListenerImpl(already_AddRefed<MediaStreamListener> aListener)
|
|
{
|
|
MediaStreamListener* listener = *mListeners.AppendElement() = aListener;
|
|
listener->NotifyBlockingChanged(GraphImpl(),
|
|
mNotifiedBlocked ? MediaStreamListener::BLOCKED : MediaStreamListener::UNBLOCKED);
|
|
|
|
for (StreamTracks::TrackIter it(mTracks); !it.IsEnded(); it.Next()) {
|
|
MediaStream* inputStream = nullptr;
|
|
TrackID inputTrackID = TRACK_INVALID;
|
|
if (ProcessedMediaStream* ps = AsProcessedStream()) {
|
|
// The only ProcessedMediaStream where we should have listeners is
|
|
// TrackUnionStream - it's what's used as owned stream in DOMMediaStream,
|
|
// the only main-thread exposed stream type.
|
|
// TrackUnionStream guarantees that each of its tracks has an input track.
|
|
// Other types do not implement GetInputStreamFor() and will return null.
|
|
inputStream = ps->GetInputStreamFor(it->GetID());
|
|
MOZ_ASSERT(inputStream);
|
|
inputTrackID = ps->GetInputTrackIDFor(it->GetID());
|
|
MOZ_ASSERT(IsTrackIDExplicit(inputTrackID));
|
|
}
|
|
|
|
uint32_t flags = TrackEventCommand::TRACK_EVENT_CREATED;
|
|
if (it->IsEnded()) {
|
|
flags |= TrackEventCommand::TRACK_EVENT_ENDED;
|
|
}
|
|
nsAutoPtr<MediaSegment> segment(it->GetSegment()->CreateEmptyClone());
|
|
listener->NotifyQueuedTrackChanges(Graph(), it->GetID(), it->GetEnd(),
|
|
static_cast<TrackEventCommand>(flags), *segment,
|
|
inputStream, inputTrackID);
|
|
}
|
|
if (mNotifiedFinished) {
|
|
listener->NotifyEvent(GraphImpl(), MediaStreamGraphEvent::EVENT_FINISHED);
|
|
}
|
|
if (mNotifiedHasCurrentData) {
|
|
listener->NotifyHasCurrentData(GraphImpl());
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStream::AddListener(MediaStreamListener* aListener)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, MediaStreamListener* aListener) :
|
|
ControlMessage(aStream), mListener(aListener) {}
|
|
void Run() override
|
|
{
|
|
mStream->AddListenerImpl(mListener.forget());
|
|
}
|
|
RefPtr<MediaStreamListener> mListener;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aListener));
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveListenerImpl(MediaStreamListener* aListener)
|
|
{
|
|
// wouldn't need this if we could do it in the opposite order
|
|
RefPtr<MediaStreamListener> listener(aListener);
|
|
mListeners.RemoveElement(aListener);
|
|
listener->NotifyEvent(GraphImpl(), MediaStreamGraphEvent::EVENT_REMOVED);
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveListener(MediaStreamListener* aListener)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, MediaStreamListener* aListener) :
|
|
ControlMessage(aStream), mListener(aListener) {}
|
|
void Run() override
|
|
{
|
|
mStream->RemoveListenerImpl(mListener);
|
|
}
|
|
RefPtr<MediaStreamListener> mListener;
|
|
};
|
|
// If the stream is destroyed the Listeners have or will be
|
|
// removed.
|
|
if (!IsDestroyed()) {
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aListener));
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStream::AddTrackListenerImpl(already_AddRefed<MediaStreamTrackListener> aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
TrackBound<MediaStreamTrackListener>* l = mTrackListeners.AppendElement();
|
|
l->mListener = aListener;
|
|
l->mTrackID = aTrackID;
|
|
|
|
StreamTracks::Track* track = FindTrack(aTrackID);
|
|
if (!track) {
|
|
return;
|
|
}
|
|
PrincipalHandle lastPrincipalHandle =
|
|
track->GetSegment()->GetLastPrincipalHandle();
|
|
l->mListener->NotifyPrincipalHandleChanged(Graph(), lastPrincipalHandle);
|
|
}
|
|
|
|
void
|
|
MediaStream::AddTrackListener(MediaStreamTrackListener* aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, MediaStreamTrackListener* aListener,
|
|
TrackID aTrackID) :
|
|
ControlMessage(aStream), mListener(aListener), mTrackID(aTrackID) {}
|
|
virtual void Run()
|
|
{
|
|
mStream->AddTrackListenerImpl(mListener.forget(), mTrackID);
|
|
}
|
|
RefPtr<MediaStreamTrackListener> mListener;
|
|
TrackID mTrackID;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aListener, aTrackID));
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveTrackListenerImpl(MediaStreamTrackListener* aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
for (size_t i = 0; i < mTrackListeners.Length(); ++i) {
|
|
if (mTrackListeners[i].mListener == aListener &&
|
|
mTrackListeners[i].mTrackID == aTrackID) {
|
|
mTrackListeners[i].mListener->NotifyRemoved();
|
|
mTrackListeners.RemoveElementAt(i);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveTrackListener(MediaStreamTrackListener* aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, MediaStreamTrackListener* aListener,
|
|
TrackID aTrackID) :
|
|
ControlMessage(aStream), mListener(aListener), mTrackID(aTrackID) {}
|
|
virtual void Run()
|
|
{
|
|
mStream->RemoveTrackListenerImpl(mListener, mTrackID);
|
|
}
|
|
RefPtr<MediaStreamTrackListener> mListener;
|
|
TrackID mTrackID;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aListener, aTrackID));
|
|
}
|
|
|
|
void
|
|
MediaStream::AddDirectTrackListenerImpl(already_AddRefed<DirectMediaStreamTrackListener> aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
// Base implementation, for streams that don't support direct track listeners.
|
|
RefPtr<DirectMediaStreamTrackListener> listener = aListener;
|
|
listener->NotifyDirectListenerInstalled(
|
|
DirectMediaStreamTrackListener::InstallationResult::STREAM_NOT_SUPPORTED);
|
|
}
|
|
|
|
void
|
|
MediaStream::AddDirectTrackListener(DirectMediaStreamTrackListener* aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, DirectMediaStreamTrackListener* aListener,
|
|
TrackID aTrackID) :
|
|
ControlMessage(aStream), mListener(aListener), mTrackID(aTrackID) {}
|
|
virtual void Run()
|
|
{
|
|
mStream->AddDirectTrackListenerImpl(mListener.forget(), mTrackID);
|
|
}
|
|
RefPtr<DirectMediaStreamTrackListener> mListener;
|
|
TrackID mTrackID;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aListener, aTrackID));
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveDirectTrackListenerImpl(DirectMediaStreamTrackListener* aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
// Base implementation, the listener was never added so nothing to do.
|
|
RefPtr<DirectMediaStreamTrackListener> listener = aListener;
|
|
}
|
|
|
|
void
|
|
MediaStream::RemoveDirectTrackListener(DirectMediaStreamTrackListener* aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, DirectMediaStreamTrackListener* aListener,
|
|
TrackID aTrackID) :
|
|
ControlMessage(aStream), mListener(aListener), mTrackID(aTrackID) {}
|
|
virtual void Run()
|
|
{
|
|
mStream->RemoveDirectTrackListenerImpl(mListener, mTrackID);
|
|
}
|
|
RefPtr<DirectMediaStreamTrackListener> mListener;
|
|
TrackID mTrackID;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aListener, aTrackID));
|
|
}
|
|
|
|
void
|
|
MediaStream::RunAfterPendingUpdates(already_AddRefed<nsIRunnable> aRunnable)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MediaStreamGraphImpl* graph = GraphImpl();
|
|
nsCOMPtr<nsIRunnable> runnable(aRunnable);
|
|
|
|
// Special case when a non-realtime graph has not started, to ensure the
|
|
// runnable will run in finite time.
|
|
if (!(graph->mRealtime || graph->mNonRealtimeProcessing)) {
|
|
runnable->Run();
|
|
return;
|
|
}
|
|
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(MediaStream* aStream,
|
|
already_AddRefed<nsIRunnable> aRunnable)
|
|
: ControlMessage(aStream)
|
|
, mRunnable(aRunnable) {}
|
|
void Run() override
|
|
{
|
|
mStream->Graph()->
|
|
DispatchToMainThreadAfterStreamStateUpdate(mRunnable.forget());
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
// Don't run mRunnable now as it may call AppendMessage() which would
|
|
// assume that there are no remaining controlMessagesToRunDuringShutdown.
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
NS_DispatchToCurrentThread(mRunnable);
|
|
}
|
|
private:
|
|
nsCOMPtr<nsIRunnable> mRunnable;
|
|
};
|
|
|
|
graph->AppendMessage(MakeUnique<Message>(this, runnable.forget()));
|
|
}
|
|
|
|
void
|
|
MediaStream::SetTrackEnabledImpl(TrackID aTrackID, DisabledTrackMode aMode)
|
|
{
|
|
if (aMode == DisabledTrackMode::ENABLED) {
|
|
for (int32_t i = mDisabledTracks.Length() - 1; i >= 0; --i) {
|
|
if (aTrackID == mDisabledTracks[i].mTrackID) {
|
|
mDisabledTracks.RemoveElementAt(i);
|
|
return;
|
|
}
|
|
}
|
|
} else {
|
|
for (const DisabledTrack& t : mDisabledTracks) {
|
|
if (aTrackID == t.mTrackID) {
|
|
NS_ERROR("Changing disabled track mode for a track is not allowed");
|
|
return;
|
|
}
|
|
}
|
|
mDisabledTracks.AppendElement(Move(DisabledTrack(aTrackID, aMode)));
|
|
}
|
|
}
|
|
|
|
DisabledTrackMode
|
|
MediaStream::GetDisabledTrackMode(TrackID aTrackID)
|
|
{
|
|
for (const DisabledTrack& t : mDisabledTracks) {
|
|
if (t.mTrackID == aTrackID) {
|
|
return t.mMode;
|
|
}
|
|
}
|
|
return DisabledTrackMode::ENABLED;
|
|
}
|
|
|
|
void
|
|
MediaStream::SetTrackEnabled(TrackID aTrackID, DisabledTrackMode aMode)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(MediaStream* aStream, TrackID aTrackID, DisabledTrackMode aMode) :
|
|
ControlMessage(aStream),
|
|
mTrackID(aTrackID),
|
|
mMode(aMode) {}
|
|
void Run() override
|
|
{
|
|
mStream->SetTrackEnabledImpl(mTrackID, mMode);
|
|
}
|
|
TrackID mTrackID;
|
|
DisabledTrackMode mMode;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aTrackID, aMode));
|
|
}
|
|
|
|
void
|
|
MediaStream::ApplyTrackDisabling(TrackID aTrackID, MediaSegment* aSegment, MediaSegment* aRawSegment)
|
|
{
|
|
DisabledTrackMode mode = GetDisabledTrackMode(aTrackID);
|
|
if (mode == DisabledTrackMode::ENABLED) {
|
|
return;
|
|
}
|
|
if (mode == DisabledTrackMode::SILENCE_BLACK) {
|
|
aSegment->ReplaceWithDisabled();
|
|
if (aRawSegment) {
|
|
aRawSegment->ReplaceWithDisabled();
|
|
}
|
|
} else if (mode == DisabledTrackMode::SILENCE_FREEZE) {
|
|
aSegment->ReplaceWithNull();
|
|
if (aRawSegment) {
|
|
aRawSegment->ReplaceWithNull();
|
|
}
|
|
} else {
|
|
MOZ_CRASH("Unsupported mode");
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStream::AddMainThreadListener(MainThreadMediaStreamListener* aListener)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MOZ_ASSERT(aListener);
|
|
MOZ_ASSERT(!mMainThreadListeners.Contains(aListener));
|
|
|
|
mMainThreadListeners.AppendElement(aListener);
|
|
|
|
// If it is not yet time to send the notification, then finish here.
|
|
if (!mFinishedNotificationSent) {
|
|
return;
|
|
}
|
|
|
|
class NotifyRunnable final : public Runnable
|
|
{
|
|
public:
|
|
explicit NotifyRunnable(MediaStream* aStream)
|
|
: mStream(aStream)
|
|
{}
|
|
|
|
NS_IMETHOD Run() override
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
mStream->NotifyMainThreadListeners();
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
~NotifyRunnable() {}
|
|
|
|
RefPtr<MediaStream> mStream;
|
|
};
|
|
|
|
nsCOMPtr<nsIRunnable> runnable = new NotifyRunnable(this);
|
|
Unused << NS_WARN_IF(NS_FAILED(NS_DispatchToMainThread(runnable.forget())));
|
|
}
|
|
|
|
SourceMediaStream::SourceMediaStream() :
|
|
MediaStream(),
|
|
mMutex("mozilla::media::SourceMediaStream"),
|
|
mUpdateKnownTracksTime(0),
|
|
mPullEnabled(false),
|
|
mUpdateFinished(false),
|
|
mNeedsMixing(false)
|
|
{
|
|
}
|
|
|
|
nsresult
|
|
SourceMediaStream::OpenAudioInput(int aID,
|
|
AudioDataListener *aListener)
|
|
{
|
|
if (GraphImpl()) {
|
|
mInputListener = aListener;
|
|
return GraphImpl()->OpenAudioInput(aID, aListener);
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::CloseAudioInput()
|
|
{
|
|
// Destroy() may have run already and cleared this
|
|
if (GraphImpl() && mInputListener) {
|
|
GraphImpl()->CloseAudioInput(mInputListener);
|
|
}
|
|
mInputListener = nullptr;
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::DestroyImpl()
|
|
{
|
|
CloseAudioInput();
|
|
|
|
GraphImpl()->AssertOnGraphThreadOrNotRunning();
|
|
for (int32_t i = mConsumers.Length() - 1; i >= 0; --i) {
|
|
// Disconnect before we come under mMutex's lock since it can call back
|
|
// through RemoveDirectTrackListenerImpl() and deadlock.
|
|
mConsumers[i]->Disconnect();
|
|
}
|
|
|
|
// Hold mMutex while mGraph is reset so that other threads holding mMutex
|
|
// can null-check know that the graph will not destroyed.
|
|
MutexAutoLock lock(mMutex);
|
|
MediaStream::DestroyImpl();
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::SetPullEnabled(bool aEnabled)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mPullEnabled = aEnabled;
|
|
if (mPullEnabled && GraphImpl()) {
|
|
GraphImpl()->EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::AddTrackInternal(TrackID aID, TrackRate aRate, StreamTime aStart,
|
|
MediaSegment* aSegment, uint32_t aFlags)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
nsTArray<TrackData> *track_data = (aFlags & ADDTRACK_QUEUED) ?
|
|
&mPendingTracks : &mUpdateTracks;
|
|
TrackData* data = track_data->AppendElement();
|
|
LIFECYCLE_LOG("AddTrackInternal: %lu/%lu", mPendingTracks.Length(), mUpdateTracks.Length());
|
|
data->mID = aID;
|
|
data->mInputRate = aRate;
|
|
data->mResamplerChannelCount = 0;
|
|
data->mStart = aStart;
|
|
data->mEndOfFlushedData = aStart;
|
|
data->mCommands = TRACK_CREATE;
|
|
data->mData = aSegment;
|
|
ResampleAudioToGraphSampleRate(data, aSegment);
|
|
if (!(aFlags & ADDTRACK_QUEUED) && GraphImpl()) {
|
|
GraphImpl()->EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::AddAudioTrack(TrackID aID, TrackRate aRate, StreamTime aStart,
|
|
AudioSegment* aSegment, uint32_t aFlags)
|
|
{
|
|
AddTrackInternal(aID, aRate, aStart, aSegment, aFlags);
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::FinishAddTracks()
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mUpdateTracks.AppendElements(Move(mPendingTracks));
|
|
LIFECYCLE_LOG("FinishAddTracks: %lu/%lu", mPendingTracks.Length(), mUpdateTracks.Length());
|
|
if (GraphImpl()) {
|
|
GraphImpl()->EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::ResampleAudioToGraphSampleRate(TrackData* aTrackData, MediaSegment* aSegment)
|
|
{
|
|
if (aSegment->GetType() != MediaSegment::AUDIO ||
|
|
aTrackData->mInputRate == GraphImpl()->GraphRate()) {
|
|
return;
|
|
}
|
|
AudioSegment* segment = static_cast<AudioSegment*>(aSegment);
|
|
int channels = segment->ChannelCount();
|
|
|
|
// If this segment is just silence, we delay instanciating the resampler. We
|
|
// also need to recreate the resampler if the channel count changes.
|
|
if (channels && aTrackData->mResamplerChannelCount != channels) {
|
|
SpeexResamplerState* state = speex_resampler_init(channels,
|
|
aTrackData->mInputRate,
|
|
GraphImpl()->GraphRate(),
|
|
SPEEX_RESAMPLER_QUALITY_MIN,
|
|
nullptr);
|
|
if (!state) {
|
|
return;
|
|
}
|
|
aTrackData->mResampler.own(state);
|
|
aTrackData->mResamplerChannelCount = channels;
|
|
}
|
|
segment->ResampleChunks(aTrackData->mResampler, aTrackData->mInputRate, GraphImpl()->GraphRate());
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::AdvanceTimeVaryingValuesToCurrentTime(GraphTime aCurrentTime,
|
|
GraphTime aBlockedTime)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mTracksStartTime += aBlockedTime;
|
|
mStreamTracksStartTimeStamp += TimeDuration::FromSeconds(GraphImpl()->MediaTimeToSeconds(aBlockedTime));
|
|
mTracks.ForgetUpTo(aCurrentTime - mTracksStartTime);
|
|
}
|
|
|
|
bool
|
|
SourceMediaStream::AppendToTrack(TrackID aID, MediaSegment* aSegment, MediaSegment *aRawSegment)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
// ::EndAllTrackAndFinished() can end these before the sources notice
|
|
bool appended = false;
|
|
auto graph = GraphImpl();
|
|
if (!mFinished && graph) {
|
|
TrackData *track = FindDataForTrack(aID);
|
|
if (track) {
|
|
// Data goes into mData, and on the next iteration of the MSG moves
|
|
// into the track's segment after NotifyQueuedTrackChanges(). This adds
|
|
// 0-10ms of delay before data gets to direct listeners.
|
|
// Indirect listeners (via subsequent TrackUnion nodes) are synced to
|
|
// playout time, and so can be delayed by buffering.
|
|
|
|
// Apply track disabling before notifying any consumers directly
|
|
// or inserting into the graph
|
|
ApplyTrackDisabling(aID, aSegment, aRawSegment);
|
|
|
|
ResampleAudioToGraphSampleRate(track, aSegment);
|
|
|
|
// Must notify first, since AppendFrom() will empty out aSegment
|
|
NotifyDirectConsumers(track, aRawSegment ? aRawSegment : aSegment);
|
|
track->mData->AppendFrom(aSegment); // note: aSegment is now dead
|
|
appended = true;
|
|
GraphImpl()->EnsureNextIteration();
|
|
} else {
|
|
aSegment->Clear();
|
|
}
|
|
}
|
|
return appended;
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::NotifyDirectConsumers(TrackData *aTrack,
|
|
MediaSegment *aSegment)
|
|
{
|
|
mMutex.AssertCurrentThreadOwns();
|
|
MOZ_ASSERT(aTrack);
|
|
|
|
for (uint32_t j = 0; j < mDirectListeners.Length(); ++j) {
|
|
DirectMediaStreamListener* l = mDirectListeners[j];
|
|
StreamTime offset = 0; // FIX! need a separate StreamTime.... or the end of the internal buffer
|
|
l->NotifyRealtimeData(static_cast<MediaStreamGraph*>(GraphImpl()), aTrack->mID,
|
|
offset, aTrack->mCommands, *aSegment);
|
|
}
|
|
|
|
for (const TrackBound<DirectMediaStreamTrackListener>& source
|
|
: mDirectTrackListeners) {
|
|
if (aTrack->mID != source.mTrackID) {
|
|
continue;
|
|
}
|
|
StreamTime offset = 0; // FIX! need a separate StreamTime.... or the end of the internal buffer
|
|
source.mListener->NotifyRealtimeTrackDataAndApplyTrackDisabling(Graph(), offset, *aSegment);
|
|
}
|
|
}
|
|
|
|
// These handle notifying all the listeners of an event
|
|
void
|
|
SourceMediaStream::NotifyListenersEventImpl(MediaStreamGraphEvent aEvent)
|
|
{
|
|
for (uint32_t j = 0; j < mListeners.Length(); ++j) {
|
|
MediaStreamListener* l = mListeners[j];
|
|
l->NotifyEvent(GraphImpl(), aEvent);
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::NotifyListenersEvent(MediaStreamGraphEvent aNewEvent)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(SourceMediaStream* aStream, MediaStreamGraphEvent aEvent) :
|
|
ControlMessage(aStream), mEvent(aEvent) {}
|
|
void Run() override
|
|
{
|
|
mStream->AsSourceStream()->NotifyListenersEventImpl(mEvent);
|
|
}
|
|
MediaStreamGraphEvent mEvent;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aNewEvent));
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::AddDirectListener(DirectMediaStreamListener* aListener)
|
|
{
|
|
bool wasEmpty;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
wasEmpty = mDirectListeners.IsEmpty();
|
|
mDirectListeners.AppendElement(aListener);
|
|
}
|
|
|
|
if (wasEmpty) {
|
|
// Async
|
|
NotifyListenersEvent(MediaStreamGraphEvent::EVENT_HAS_DIRECT_LISTENERS);
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::RemoveDirectListener(DirectMediaStreamListener* aListener)
|
|
{
|
|
bool isEmpty;
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mDirectListeners.RemoveElement(aListener);
|
|
isEmpty = mDirectListeners.IsEmpty();
|
|
}
|
|
|
|
if (isEmpty) {
|
|
// Async
|
|
NotifyListenersEvent(MediaStreamGraphEvent::EVENT_HAS_NO_DIRECT_LISTENERS);
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::AddDirectTrackListenerImpl(already_AddRefed<DirectMediaStreamTrackListener> aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
MOZ_ASSERT(IsTrackIDExplicit(aTrackID));
|
|
TrackData* data;
|
|
bool found = false;
|
|
bool isAudio = false;
|
|
bool isVideo = false;
|
|
RefPtr<DirectMediaStreamTrackListener> listener = aListener;
|
|
STREAM_LOG(LogLevel::Debug, ("Adding direct track listener %p bound to track %d to source stream %p",
|
|
listener.get(), aTrackID, this));
|
|
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
data = FindDataForTrack(aTrackID);
|
|
found = !!data;
|
|
if (found) {
|
|
isAudio = data->mData->GetType() == MediaSegment::AUDIO;
|
|
isVideo = data->mData->GetType() == MediaSegment::VIDEO;
|
|
}
|
|
|
|
// The track might be removed from mUpdateTrack but still exist in
|
|
// mTracks.
|
|
auto streamTrack = FindTrack(aTrackID);
|
|
bool foundTrack = !!streamTrack;
|
|
if (foundTrack) {
|
|
MediaStreamVideoSink* videoSink = listener->AsMediaStreamVideoSink();
|
|
// Re-send missed VideoSegment to new added MediaStreamVideoSink.
|
|
if (streamTrack->GetType() == MediaSegment::VIDEO && videoSink) {
|
|
VideoSegment videoSegment;
|
|
if (mTracks.GetForgottenDuration() < streamTrack->GetSegment()->GetDuration()) {
|
|
videoSegment.AppendSlice(*streamTrack->GetSegment(),
|
|
mTracks.GetForgottenDuration(),
|
|
streamTrack->GetSegment()->GetDuration());
|
|
} else {
|
|
VideoSegment* streamTrackSegment = static_cast<VideoSegment*>(streamTrack->GetSegment());
|
|
VideoChunk* lastChunk = streamTrackSegment->GetLastChunk();
|
|
if (lastChunk) {
|
|
StreamTime startTime = streamTrackSegment->GetDuration() - lastChunk->GetDuration();
|
|
videoSegment.AppendSlice(*streamTrackSegment,
|
|
startTime,
|
|
streamTrackSegment->GetDuration());
|
|
}
|
|
}
|
|
if (found) {
|
|
videoSegment.AppendSlice(*data->mData, 0, data->mData->GetDuration());
|
|
}
|
|
videoSink->SetCurrentFrames(videoSegment);
|
|
}
|
|
}
|
|
|
|
if (found && (isAudio || isVideo)) {
|
|
for (auto entry : mDirectTrackListeners) {
|
|
if (entry.mListener == listener &&
|
|
(entry.mTrackID == TRACK_ANY || entry.mTrackID == aTrackID)) {
|
|
listener->NotifyDirectListenerInstalled(
|
|
DirectMediaStreamTrackListener::InstallationResult::ALREADY_EXISTS);
|
|
return;
|
|
}
|
|
}
|
|
|
|
TrackBound<DirectMediaStreamTrackListener>* sourceListener =
|
|
mDirectTrackListeners.AppendElement();
|
|
sourceListener->mListener = listener;
|
|
sourceListener->mTrackID = aTrackID;
|
|
}
|
|
}
|
|
if (!found) {
|
|
STREAM_LOG(LogLevel::Warning, ("Couldn't find source track for direct track listener %p",
|
|
listener.get()));
|
|
listener->NotifyDirectListenerInstalled(
|
|
DirectMediaStreamTrackListener::InstallationResult::TRACK_NOT_FOUND_AT_SOURCE);
|
|
return;
|
|
}
|
|
if (!isAudio && !isVideo) {
|
|
STREAM_LOG(LogLevel::Warning, ("Source track for direct track listener %p is unknown",
|
|
listener.get()));
|
|
// It is not a video or audio track.
|
|
MOZ_ASSERT(true);
|
|
return;
|
|
}
|
|
STREAM_LOG(LogLevel::Debug, ("Added direct track listener %p", listener.get()));
|
|
listener->NotifyDirectListenerInstalled(
|
|
DirectMediaStreamTrackListener::InstallationResult::SUCCESS);
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::RemoveDirectTrackListenerImpl(DirectMediaStreamTrackListener* aListener,
|
|
TrackID aTrackID)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
for (int32_t i = mDirectTrackListeners.Length() - 1; i >= 0; --i) {
|
|
const TrackBound<DirectMediaStreamTrackListener>& source =
|
|
mDirectTrackListeners[i];
|
|
if (source.mListener == aListener && source.mTrackID == aTrackID) {
|
|
aListener->NotifyDirectListenerUninstalled();
|
|
mDirectTrackListeners.RemoveElementAt(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
StreamTime
|
|
SourceMediaStream::GetEndOfAppendedData(TrackID aID)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
TrackData *track = FindDataForTrack(aID);
|
|
if (track) {
|
|
return track->mEndOfFlushedData + track->mData->GetDuration();
|
|
}
|
|
NS_ERROR("Track not found");
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::EndTrack(TrackID aID)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
TrackData *track = FindDataForTrack(aID);
|
|
if (track) {
|
|
track->mCommands |= TrackEventCommand::TRACK_EVENT_ENDED;
|
|
}
|
|
if (auto graph = GraphImpl()) {
|
|
graph->EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::AdvanceKnownTracksTime(StreamTime aKnownTime)
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
MOZ_ASSERT(aKnownTime >= mUpdateKnownTracksTime);
|
|
mUpdateKnownTracksTime = aKnownTime;
|
|
if (auto graph = GraphImpl()) {
|
|
graph->EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::FinishWithLockHeld()
|
|
{
|
|
mMutex.AssertCurrentThreadOwns();
|
|
mUpdateFinished = true;
|
|
if (auto graph = GraphImpl()) {
|
|
graph->EnsureNextIteration();
|
|
}
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::SetTrackEnabledImpl(TrackID aTrackID, DisabledTrackMode aMode)
|
|
{
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
for (TrackBound<DirectMediaStreamTrackListener>& l: mDirectTrackListeners) {
|
|
if (l.mTrackID != aTrackID) {
|
|
continue;
|
|
}
|
|
DisabledTrackMode oldMode = GetDisabledTrackMode(aTrackID);
|
|
bool oldEnabled = oldMode == DisabledTrackMode::ENABLED;
|
|
if (!oldEnabled && aMode == DisabledTrackMode::ENABLED) {
|
|
STREAM_LOG(LogLevel::Debug, ("SourceMediaStream %p track %d setting "
|
|
"direct listener enabled",
|
|
this, aTrackID));
|
|
l.mListener->DecreaseDisabled(oldMode);
|
|
} else if (oldEnabled && aMode != DisabledTrackMode::ENABLED) {
|
|
STREAM_LOG(LogLevel::Debug, ("SourceMediaStream %p track %d setting "
|
|
"direct listener disabled",
|
|
this, aTrackID));
|
|
l.mListener->IncreaseDisabled(aMode);
|
|
}
|
|
}
|
|
}
|
|
MediaStream::SetTrackEnabledImpl(aTrackID, aMode);
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::EndAllTrackAndFinish()
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
for (uint32_t i = 0; i < mUpdateTracks.Length(); ++i) {
|
|
SourceMediaStream::TrackData* data = &mUpdateTracks[i];
|
|
data->mCommands |= TrackEventCommand::TRACK_EVENT_ENDED;
|
|
}
|
|
mPendingTracks.Clear();
|
|
FinishWithLockHeld();
|
|
// we will call NotifyEvent() to let GetUserMedia know
|
|
}
|
|
|
|
SourceMediaStream::~SourceMediaStream()
|
|
{
|
|
}
|
|
|
|
void
|
|
SourceMediaStream::RegisterForAudioMixing()
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
mNeedsMixing = true;
|
|
}
|
|
|
|
bool
|
|
SourceMediaStream::NeedsMixing()
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
return mNeedsMixing;
|
|
}
|
|
|
|
bool
|
|
SourceMediaStream::HasPendingAudioTrack()
|
|
{
|
|
MutexAutoLock lock(mMutex);
|
|
bool audioTrackPresent = false;
|
|
|
|
for (auto& data : mPendingTracks) {
|
|
if (data.mData->GetType() == MediaSegment::AUDIO) {
|
|
audioTrackPresent = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return audioTrackPresent;
|
|
}
|
|
|
|
void
|
|
MediaInputPort::Init()
|
|
{
|
|
STREAM_LOG(LogLevel::Debug, ("Adding MediaInputPort %p (from %p to %p) to the graph",
|
|
this, mSource, mDest));
|
|
mSource->AddConsumer(this);
|
|
mDest->AddInput(this);
|
|
// mPortCount decremented via MediaInputPort::Destroy's message
|
|
++mDest->GraphImpl()->mPortCount;
|
|
}
|
|
|
|
void
|
|
MediaInputPort::Disconnect()
|
|
{
|
|
GraphImpl()->AssertOnGraphThreadOrNotRunning();
|
|
NS_ASSERTION(!mSource == !mDest,
|
|
"mSource must either both be null or both non-null");
|
|
if (!mSource)
|
|
return;
|
|
|
|
mSource->RemoveConsumer(this);
|
|
mDest->RemoveInput(this);
|
|
mSource = nullptr;
|
|
mDest = nullptr;
|
|
|
|
GraphImpl()->SetStreamOrderDirty();
|
|
}
|
|
|
|
MediaInputPort::InputInterval
|
|
MediaInputPort::GetNextInputInterval(GraphTime aTime)
|
|
{
|
|
InputInterval result = { GRAPH_TIME_MAX, GRAPH_TIME_MAX, false };
|
|
if (aTime >= mDest->mStartBlocking) {
|
|
return result;
|
|
}
|
|
result.mStart = aTime;
|
|
result.mEnd = mDest->mStartBlocking;
|
|
result.mInputIsBlocked = aTime >= mSource->mStartBlocking;
|
|
if (!result.mInputIsBlocked) {
|
|
result.mEnd = std::min(result.mEnd, mSource->mStartBlocking);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void
|
|
MediaInputPort::Destroy()
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(MediaInputPort* aPort)
|
|
: ControlMessage(nullptr), mPort(aPort) {}
|
|
void Run() override
|
|
{
|
|
mPort->Disconnect();
|
|
--mPort->GraphImpl()->mPortCount;
|
|
mPort->SetGraphImpl(nullptr);
|
|
NS_RELEASE(mPort);
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
Run();
|
|
}
|
|
MediaInputPort* mPort;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this));
|
|
}
|
|
|
|
MediaStreamGraphImpl*
|
|
MediaInputPort::GraphImpl()
|
|
{
|
|
return mGraph;
|
|
}
|
|
|
|
MediaStreamGraph*
|
|
MediaInputPort::Graph()
|
|
{
|
|
return mGraph;
|
|
}
|
|
|
|
void
|
|
MediaInputPort::SetGraphImpl(MediaStreamGraphImpl* aGraph)
|
|
{
|
|
MOZ_ASSERT(!mGraph || !aGraph, "Should only be set once");
|
|
mGraph = aGraph;
|
|
}
|
|
|
|
void
|
|
MediaInputPort::BlockSourceTrackIdImpl(TrackID aTrackId, BlockingMode aBlockingMode)
|
|
{
|
|
mBlockedTracks.AppendElement(Pair<TrackID, BlockingMode>(aTrackId, aBlockingMode));
|
|
}
|
|
|
|
already_AddRefed<Pledge<bool>>
|
|
MediaInputPort::BlockSourceTrackId(TrackID aTrackId, BlockingMode aBlockingMode)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(MediaInputPort* aPort,
|
|
TrackID aTrackId,
|
|
BlockingMode aBlockingMode,
|
|
already_AddRefed<nsIRunnable> aRunnable)
|
|
: ControlMessage(aPort->GetDestination()),
|
|
mPort(aPort), mTrackId(aTrackId), mBlockingMode(aBlockingMode),
|
|
mRunnable(aRunnable) {}
|
|
void Run() override
|
|
{
|
|
mPort->BlockSourceTrackIdImpl(mTrackId, mBlockingMode);
|
|
if (mRunnable) {
|
|
mStream->Graph()->DispatchToMainThreadAfterStreamStateUpdate(mRunnable.forget());
|
|
}
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
Run();
|
|
}
|
|
RefPtr<MediaInputPort> mPort;
|
|
TrackID mTrackId;
|
|
BlockingMode mBlockingMode;
|
|
nsCOMPtr<nsIRunnable> mRunnable;
|
|
};
|
|
|
|
MOZ_ASSERT(IsTrackIDExplicit(aTrackId),
|
|
"Only explicit TrackID is allowed");
|
|
|
|
RefPtr<Pledge<bool>> pledge = new Pledge<bool>();
|
|
nsCOMPtr<nsIRunnable> runnable = NewRunnableFrom([pledge]() {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
pledge->Resolve(true);
|
|
return NS_OK;
|
|
});
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aTrackId, aBlockingMode, runnable.forget()));
|
|
return pledge.forget();
|
|
}
|
|
|
|
already_AddRefed<MediaInputPort>
|
|
ProcessedMediaStream::AllocateInputPort(MediaStream* aStream, TrackID aTrackID,
|
|
TrackID aDestTrackID,
|
|
uint16_t aInputNumber, uint16_t aOutputNumber,
|
|
nsTArray<TrackID>* aBlockedTracks)
|
|
{
|
|
// This method creates two references to the MediaInputPort: one for
|
|
// the main thread, and one for the MediaStreamGraph.
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(MediaInputPort* aPort)
|
|
: ControlMessage(aPort->GetDestination()),
|
|
mPort(aPort) {}
|
|
void Run() override
|
|
{
|
|
mPort->Init();
|
|
// The graph holds its reference implicitly
|
|
mPort->GraphImpl()->SetStreamOrderDirty();
|
|
Unused << mPort.forget();
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
Run();
|
|
}
|
|
RefPtr<MediaInputPort> mPort;
|
|
};
|
|
|
|
MOZ_ASSERT(aStream->GraphImpl() == GraphImpl());
|
|
MOZ_ASSERT(aTrackID == TRACK_ANY || IsTrackIDExplicit(aTrackID),
|
|
"Only TRACK_ANY and explicit ID are allowed for source track");
|
|
MOZ_ASSERT(aDestTrackID == TRACK_ANY || IsTrackIDExplicit(aDestTrackID),
|
|
"Only TRACK_ANY and explicit ID are allowed for destination track");
|
|
MOZ_ASSERT(aTrackID != TRACK_ANY || aDestTrackID == TRACK_ANY,
|
|
"Generic MediaInputPort cannot produce a single destination track");
|
|
RefPtr<MediaInputPort> port =
|
|
new MediaInputPort(aStream, aTrackID, this, aDestTrackID,
|
|
aInputNumber, aOutputNumber);
|
|
if (aBlockedTracks) {
|
|
for (TrackID trackID : *aBlockedTracks) {
|
|
port->BlockSourceTrackIdImpl(trackID, BlockingMode::CREATION);
|
|
}
|
|
}
|
|
port->SetGraphImpl(GraphImpl());
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(port));
|
|
return port.forget();
|
|
}
|
|
|
|
void
|
|
ProcessedMediaStream::Finish()
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
explicit Message(ProcessedMediaStream* aStream)
|
|
: ControlMessage(aStream) {}
|
|
void Run() override
|
|
{
|
|
mStream->GraphImpl()->FinishStream(mStream);
|
|
}
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this));
|
|
}
|
|
|
|
void
|
|
ProcessedMediaStream::SetAutofinish(bool aAutofinish)
|
|
{
|
|
class Message : public ControlMessage {
|
|
public:
|
|
Message(ProcessedMediaStream* aStream, bool aAutofinish)
|
|
: ControlMessage(aStream), mAutofinish(aAutofinish) {}
|
|
void Run() override
|
|
{
|
|
static_cast<ProcessedMediaStream*>(mStream)->SetAutofinishImpl(mAutofinish);
|
|
}
|
|
bool mAutofinish;
|
|
};
|
|
GraphImpl()->AppendMessage(MakeUnique<Message>(this, aAutofinish));
|
|
}
|
|
|
|
void
|
|
ProcessedMediaStream::DestroyImpl()
|
|
{
|
|
for (int32_t i = mInputs.Length() - 1; i >= 0; --i) {
|
|
mInputs[i]->Disconnect();
|
|
}
|
|
MediaStream::DestroyImpl();
|
|
// The stream order is only important if there are connections, in which
|
|
// case MediaInputPort::Disconnect() called SetStreamOrderDirty().
|
|
// MediaStreamGraphImpl::RemoveStreamGraphThread() will also call
|
|
// SetStreamOrderDirty(), for other reasons.
|
|
}
|
|
|
|
MediaStreamGraphImpl::MediaStreamGraphImpl(GraphDriverType aDriverRequested,
|
|
TrackRate aSampleRate,
|
|
dom::AudioChannel aChannel)
|
|
: MediaStreamGraph(aSampleRate)
|
|
, mPortCount(0)
|
|
, mInputWanted(false)
|
|
, mInputDeviceID(-1)
|
|
, mOutputWanted(true)
|
|
, mOutputDeviceID(-1)
|
|
, mNeedAnotherIteration(false)
|
|
, mGraphDriverAsleep(false)
|
|
, mMonitor("MediaStreamGraphImpl")
|
|
, mLifecycleState(LIFECYCLE_THREAD_NOT_STARTED)
|
|
, mEndTime(GRAPH_TIME_MAX)
|
|
, mForceShutDown(false)
|
|
, mPostedRunInStableStateEvent(false)
|
|
, mDetectedNotRunning(false)
|
|
, mPostedRunInStableState(false)
|
|
, mRealtime(aDriverRequested != OFFLINE_THREAD_DRIVER)
|
|
, mNonRealtimeProcessing(false)
|
|
, mStreamOrderDirty(false)
|
|
, mLatencyLog(AsyncLatencyLogger::Get())
|
|
#ifdef MOZ_WEBRTC
|
|
, mFarendObserverRef(nullptr)
|
|
#endif
|
|
, mSelfRef(this)
|
|
#ifdef DEBUG
|
|
, mCanRunMessagesSynchronously(false)
|
|
#endif
|
|
, mAudioChannel(aChannel)
|
|
{
|
|
if (mRealtime) {
|
|
if (aDriverRequested == AUDIO_THREAD_DRIVER) {
|
|
AudioCallbackDriver* driver = new AudioCallbackDriver(this);
|
|
mDriver = driver;
|
|
} else {
|
|
mDriver = new SystemClockDriver(this);
|
|
}
|
|
} else {
|
|
mDriver = new OfflineClockDriver(this, MEDIA_GRAPH_TARGET_PERIOD_MS);
|
|
}
|
|
|
|
mLastMainThreadUpdate = TimeStamp::Now();
|
|
|
|
RegisterWeakAsyncMemoryReporter(this);
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::Destroy()
|
|
{
|
|
// First unregister from memory reporting.
|
|
UnregisterWeakMemoryReporter(this);
|
|
|
|
// Clear the self reference which will destroy this instance if all
|
|
// associated GraphDrivers are destroyed.
|
|
mSelfRef = nullptr;
|
|
}
|
|
|
|
MediaStreamGraph*
|
|
MediaStreamGraph::GetInstance(MediaStreamGraph::GraphDriverType aGraphDriverRequested,
|
|
dom::AudioChannel aChannel)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Main thread only");
|
|
|
|
uint32_t channel = static_cast<uint32_t>(aChannel);
|
|
MediaStreamGraphImpl* graph = nullptr;
|
|
|
|
if (!gGraphs.Get(channel, &graph)) {
|
|
if (!gMediaStreamGraphShutdownBlocker) {
|
|
|
|
class Blocker : public media::ShutdownBlocker
|
|
{
|
|
public:
|
|
Blocker()
|
|
: media::ShutdownBlocker(NS_LITERAL_STRING(
|
|
"MediaStreamGraph shutdown: blocking on msg thread"))
|
|
{}
|
|
|
|
NS_IMETHOD
|
|
BlockShutdown(nsIAsyncShutdownClient* aProfileBeforeChange) override
|
|
{
|
|
// Distribute the global async shutdown blocker in a ticket. If there
|
|
// are zero graphs then shutdown is unblocked when we go out of scope.
|
|
RefPtr<MediaStreamGraphImpl::ShutdownTicket> ticket =
|
|
new MediaStreamGraphImpl::ShutdownTicket(gMediaStreamGraphShutdownBlocker.get());
|
|
gMediaStreamGraphShutdownBlocker = nullptr;
|
|
|
|
for (auto iter = gGraphs.Iter(); !iter.Done(); iter.Next()) {
|
|
iter.UserData()->ForceShutDown(ticket);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
gMediaStreamGraphShutdownBlocker = new Blocker();
|
|
nsCOMPtr<nsIAsyncShutdownClient> barrier = MediaStreamGraphImpl::GetShutdownBarrier();
|
|
nsresult rv = barrier->
|
|
AddBlocker(gMediaStreamGraphShutdownBlocker,
|
|
NS_LITERAL_STRING(__FILE__), __LINE__,
|
|
NS_LITERAL_STRING("MediaStreamGraph shutdown"));
|
|
MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
|
|
}
|
|
|
|
graph = new MediaStreamGraphImpl(aGraphDriverRequested,
|
|
CubebUtils::PreferredSampleRate(),
|
|
aChannel);
|
|
|
|
gGraphs.Put(channel, graph);
|
|
|
|
STREAM_LOG(LogLevel::Debug,
|
|
("Starting up MediaStreamGraph %p for channel %s",
|
|
graph, AudioChannelValues::strings[channel].value));
|
|
}
|
|
|
|
return graph;
|
|
}
|
|
|
|
MediaStreamGraph*
|
|
MediaStreamGraph::CreateNonRealtimeInstance(TrackRate aSampleRate)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Main thread only");
|
|
|
|
MediaStreamGraphImpl* graph =
|
|
new MediaStreamGraphImpl(OFFLINE_THREAD_DRIVER,
|
|
aSampleRate,
|
|
AudioChannel::Normal);
|
|
|
|
STREAM_LOG(LogLevel::Debug, ("Starting up Offline MediaStreamGraph %p", graph));
|
|
|
|
return graph;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraph::DestroyNonRealtimeInstance(MediaStreamGraph* aGraph)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "Main thread only");
|
|
MOZ_ASSERT(aGraph->IsNonRealtime(), "Should not destroy the global graph here");
|
|
|
|
MediaStreamGraphImpl* graph = static_cast<MediaStreamGraphImpl*>(aGraph);
|
|
|
|
if (!graph->mNonRealtimeProcessing) {
|
|
// Start the graph, but don't produce anything
|
|
graph->StartNonRealtimeProcessing(0);
|
|
}
|
|
graph->ForceShutDown(nullptr);
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(MediaStreamGraphImpl, nsIMemoryReporter, nsITimerCallback)
|
|
|
|
NS_IMETHODIMP
|
|
MediaStreamGraphImpl::CollectReports(nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aData, bool aAnonymize)
|
|
{
|
|
if (mLifecycleState >= LIFECYCLE_WAITING_FOR_THREAD_SHUTDOWN) {
|
|
// Shutting down, nothing to report.
|
|
FinishCollectReports(aHandleReport, aData, nsTArray<AudioNodeSizes>());
|
|
return NS_OK;
|
|
}
|
|
|
|
class Message final : public ControlMessage {
|
|
public:
|
|
Message(MediaStreamGraphImpl *aGraph,
|
|
nsIHandleReportCallback* aHandleReport,
|
|
nsISupports *aHandlerData)
|
|
: ControlMessage(nullptr)
|
|
, mGraph(aGraph)
|
|
, mHandleReport(aHandleReport)
|
|
, mHandlerData(aHandlerData) {}
|
|
void Run() override
|
|
{
|
|
mGraph->CollectSizesForMemoryReport(mHandleReport.forget(),
|
|
mHandlerData.forget());
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
// Run this message during shutdown too, so that endReports is called.
|
|
Run();
|
|
}
|
|
MediaStreamGraphImpl *mGraph;
|
|
// nsMemoryReporterManager keeps the callback and data alive only if it
|
|
// does not time out.
|
|
nsCOMPtr<nsIHandleReportCallback> mHandleReport;
|
|
nsCOMPtr<nsISupports> mHandlerData;
|
|
};
|
|
|
|
// When a non-realtime graph has not started, there is no thread yet, so
|
|
// collect sizes on this thread.
|
|
if (!(mRealtime || mNonRealtimeProcessing)) {
|
|
CollectSizesForMemoryReport(do_AddRef(aHandleReport), do_AddRef(aData));
|
|
return NS_OK;
|
|
}
|
|
|
|
AppendMessage(MakeUnique<Message>(this, aHandleReport, aData));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::CollectSizesForMemoryReport(
|
|
already_AddRefed<nsIHandleReportCallback> aHandleReport,
|
|
already_AddRefed<nsISupports> aHandlerData)
|
|
{
|
|
class FinishCollectRunnable final : public Runnable
|
|
{
|
|
public:
|
|
explicit FinishCollectRunnable(
|
|
already_AddRefed<nsIHandleReportCallback> aHandleReport,
|
|
already_AddRefed<nsISupports> aHandlerData)
|
|
: mHandleReport(aHandleReport)
|
|
, mHandlerData(aHandlerData)
|
|
{}
|
|
|
|
NS_IMETHOD Run() override
|
|
{
|
|
MediaStreamGraphImpl::FinishCollectReports(mHandleReport, mHandlerData,
|
|
Move(mAudioStreamSizes));
|
|
return NS_OK;
|
|
}
|
|
|
|
nsTArray<AudioNodeSizes> mAudioStreamSizes;
|
|
|
|
private:
|
|
~FinishCollectRunnable() {}
|
|
|
|
// Avoiding nsCOMPtr because NSCAP_ASSERT_NO_QUERY_NEEDED in its
|
|
// constructor modifies the ref-count, which cannot be done off main
|
|
// thread.
|
|
RefPtr<nsIHandleReportCallback> mHandleReport;
|
|
RefPtr<nsISupports> mHandlerData;
|
|
};
|
|
|
|
RefPtr<FinishCollectRunnable> runnable =
|
|
new FinishCollectRunnable(Move(aHandleReport), Move(aHandlerData));
|
|
|
|
auto audioStreamSizes = &runnable->mAudioStreamSizes;
|
|
|
|
for (MediaStream* s : AllStreams()) {
|
|
AudioNodeStream* stream = s->AsAudioNodeStream();
|
|
if (stream) {
|
|
AudioNodeSizes* usage = audioStreamSizes->AppendElement();
|
|
stream->SizeOfAudioNodesIncludingThis(MallocSizeOf, *usage);
|
|
}
|
|
}
|
|
|
|
NS_DispatchToMainThread(runnable.forget());
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::
|
|
FinishCollectReports(nsIHandleReportCallback* aHandleReport, nsISupports* aData,
|
|
const nsTArray<AudioNodeSizes>& aAudioStreamSizes)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
nsCOMPtr<nsIMemoryReporterManager> manager =
|
|
do_GetService("@mozilla.org/memory-reporter-manager;1");
|
|
|
|
if (!manager)
|
|
return;
|
|
|
|
#define REPORT(_path, _amount, _desc) \
|
|
aHandleReport->Callback(EmptyCString(), _path, KIND_HEAP, UNITS_BYTES, \
|
|
_amount, NS_LITERAL_CSTRING(_desc), aData);
|
|
|
|
for (size_t i = 0; i < aAudioStreamSizes.Length(); i++) {
|
|
const AudioNodeSizes& usage = aAudioStreamSizes[i];
|
|
const char* const nodeType =
|
|
usage.mNodeType ? usage.mNodeType : "<unknown>";
|
|
|
|
nsPrintfCString enginePath("explicit/webaudio/audio-node/%s/engine-objects",
|
|
nodeType);
|
|
REPORT(enginePath, usage.mEngine,
|
|
"Memory used by AudioNode engine objects (Web Audio).");
|
|
|
|
nsPrintfCString streamPath("explicit/webaudio/audio-node/%s/stream-objects",
|
|
nodeType);
|
|
REPORT(streamPath, usage.mStream,
|
|
"Memory used by AudioNode stream objects (Web Audio).");
|
|
|
|
}
|
|
|
|
size_t hrtfLoaders = WebCore::HRTFDatabaseLoader::sizeOfLoaders(MallocSizeOf);
|
|
if (hrtfLoaders) {
|
|
REPORT(NS_LITERAL_CSTRING(
|
|
"explicit/webaudio/audio-node/PannerNode/hrtf-databases"),
|
|
hrtfLoaders,
|
|
"Memory used by PannerNode databases (Web Audio).");
|
|
}
|
|
|
|
#undef REPORT
|
|
|
|
manager->EndReport();
|
|
}
|
|
|
|
SourceMediaStream*
|
|
MediaStreamGraph::CreateSourceStream()
|
|
{
|
|
SourceMediaStream* stream = new SourceMediaStream();
|
|
AddStream(stream);
|
|
return stream;
|
|
}
|
|
|
|
ProcessedMediaStream*
|
|
MediaStreamGraph::CreateTrackUnionStream()
|
|
{
|
|
TrackUnionStream* stream = new TrackUnionStream();
|
|
AddStream(stream);
|
|
return stream;
|
|
}
|
|
|
|
ProcessedMediaStream*
|
|
MediaStreamGraph::CreateAudioCaptureStream(TrackID aTrackId)
|
|
{
|
|
AudioCaptureStream* stream = new AudioCaptureStream(aTrackId);
|
|
AddStream(stream);
|
|
return stream;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraph::AddStream(MediaStream* aStream)
|
|
{
|
|
NS_ADDREF(aStream);
|
|
MediaStreamGraphImpl* graph = static_cast<MediaStreamGraphImpl*>(this);
|
|
aStream->SetGraphImpl(graph);
|
|
graph->AppendMessage(MakeUnique<CreateMessage>(aStream));
|
|
}
|
|
|
|
class GraphStartedRunnable final : public Runnable
|
|
{
|
|
public:
|
|
GraphStartedRunnable(AudioNodeStream* aStream, MediaStreamGraph* aGraph)
|
|
: mStream(aStream)
|
|
, mGraph(aGraph)
|
|
{ }
|
|
|
|
NS_IMETHOD Run() override {
|
|
mGraph->NotifyWhenGraphStarted(mStream);
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
RefPtr<AudioNodeStream> mStream;
|
|
MediaStreamGraph* mGraph;
|
|
};
|
|
|
|
void
|
|
MediaStreamGraph::NotifyWhenGraphStarted(AudioNodeStream* aStream)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
class GraphStartedNotificationControlMessage : public ControlMessage
|
|
{
|
|
public:
|
|
explicit GraphStartedNotificationControlMessage(AudioNodeStream* aStream)
|
|
: ControlMessage(aStream)
|
|
{
|
|
}
|
|
void Run() override
|
|
{
|
|
// This runs on the graph thread, so when this runs, and the current
|
|
// driver is an AudioCallbackDriver, we know the audio hardware is
|
|
// started. If not, we are going to switch soon, keep reposting this
|
|
// ControlMessage.
|
|
MediaStreamGraphImpl* graphImpl = mStream->GraphImpl();
|
|
if (graphImpl->CurrentDriver()->AsAudioCallbackDriver()) {
|
|
nsCOMPtr<nsIRunnable> event = new dom::StateChangeTask(
|
|
mStream->AsAudioNodeStream(), nullptr, AudioContextState::Running);
|
|
NS_DispatchToMainThread(event.forget());
|
|
} else {
|
|
nsCOMPtr<nsIRunnable> event = new GraphStartedRunnable(
|
|
mStream->AsAudioNodeStream(), mStream->Graph());
|
|
NS_DispatchToMainThread(event.forget());
|
|
}
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
}
|
|
};
|
|
|
|
if (!aStream->IsDestroyed()) {
|
|
MediaStreamGraphImpl* graphImpl = static_cast<MediaStreamGraphImpl*>(this);
|
|
graphImpl->AppendMessage(MakeUnique<GraphStartedNotificationControlMessage>(aStream));
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::IncrementSuspendCount(MediaStream* aStream)
|
|
{
|
|
if (!aStream->IsSuspended()) {
|
|
MOZ_ASSERT(mStreams.Contains(aStream));
|
|
mStreams.RemoveElement(aStream);
|
|
mSuspendedStreams.AppendElement(aStream);
|
|
SetStreamOrderDirty();
|
|
}
|
|
aStream->IncrementSuspendCount();
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::DecrementSuspendCount(MediaStream* aStream)
|
|
{
|
|
bool wasSuspended = aStream->IsSuspended();
|
|
aStream->DecrementSuspendCount();
|
|
if (wasSuspended && !aStream->IsSuspended()) {
|
|
MOZ_ASSERT(mSuspendedStreams.Contains(aStream));
|
|
mSuspendedStreams.RemoveElement(aStream);
|
|
mStreams.AppendElement(aStream);
|
|
ProcessedMediaStream* ps = aStream->AsProcessedStream();
|
|
if (ps) {
|
|
ps->mCycleMarker = NOT_VISITED;
|
|
}
|
|
SetStreamOrderDirty();
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::SuspendOrResumeStreams(AudioContextOperation aAudioContextOperation,
|
|
const nsTArray<MediaStream*>& aStreamSet)
|
|
{
|
|
// For our purpose, Suspend and Close are equivalent: we want to remove the
|
|
// streams from the set of streams that are going to be processed.
|
|
for (MediaStream* stream : aStreamSet) {
|
|
if (aAudioContextOperation == AudioContextOperation::Resume) {
|
|
DecrementSuspendCount(stream);
|
|
} else {
|
|
IncrementSuspendCount(stream);
|
|
}
|
|
}
|
|
STREAM_LOG(LogLevel::Debug, ("Moving streams between suspended and running"
|
|
"state: mStreams: %d, mSuspendedStreams: %d\n", mStreams.Length(),
|
|
mSuspendedStreams.Length()));
|
|
#ifdef DEBUG
|
|
// The intersection of the two arrays should be null.
|
|
for (uint32_t i = 0; i < mStreams.Length(); i++) {
|
|
for (uint32_t j = 0; j < mSuspendedStreams.Length(); j++) {
|
|
MOZ_ASSERT(
|
|
mStreams[i] != mSuspendedStreams[j],
|
|
"The suspended stream set and running stream set are not disjoint.");
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::AudioContextOperationCompleted(MediaStream* aStream,
|
|
void* aPromise,
|
|
AudioContextOperation aOperation)
|
|
{
|
|
// This can be called from the thread created to do cubeb operation, or the
|
|
// MSG thread. The pointers passed back here are refcounted, so are still
|
|
// alive.
|
|
MonitorAutoLock lock(mMonitor);
|
|
|
|
AudioContextState state;
|
|
switch (aOperation) {
|
|
case AudioContextOperation::Suspend:
|
|
state = AudioContextState::Suspended;
|
|
break;
|
|
case AudioContextOperation::Resume:
|
|
state = AudioContextState::Running;
|
|
break;
|
|
case AudioContextOperation::Close:
|
|
state = AudioContextState::Closed;
|
|
break;
|
|
default: MOZ_CRASH("Not handled.");
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> event = new dom::StateChangeTask(
|
|
aStream->AsAudioNodeStream(), aPromise, state);
|
|
NS_DispatchToMainThread(event.forget());
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::ApplyAudioContextOperationImpl(
|
|
MediaStream* aDestinationStream, const nsTArray<MediaStream*>& aStreams,
|
|
AudioContextOperation aOperation, void* aPromise)
|
|
{
|
|
MOZ_ASSERT(CurrentDriver()->OnThread());
|
|
|
|
SuspendOrResumeStreams(aOperation, aStreams);
|
|
|
|
bool switching = false;
|
|
GraphDriver* nextDriver = nullptr;
|
|
{
|
|
MonitorAutoLock lock(mMonitor);
|
|
switching = CurrentDriver()->Switching();
|
|
if (switching) {
|
|
nextDriver = CurrentDriver()->NextDriver();
|
|
}
|
|
}
|
|
|
|
// If we have suspended the last AudioContext, and we don't have other
|
|
// streams that have audio, this graph will automatically switch to a
|
|
// SystemCallbackDriver, because it can't find a MediaStream that has an audio
|
|
// track. When resuming, force switching to an AudioCallbackDriver (if we're
|
|
// not already switching). It would have happened at the next iteration
|
|
// anyways, but doing this now save some time.
|
|
if (aOperation == AudioContextOperation::Resume) {
|
|
if (!CurrentDriver()->AsAudioCallbackDriver()) {
|
|
AudioCallbackDriver* driver;
|
|
if (switching) {
|
|
MOZ_ASSERT(nextDriver->AsAudioCallbackDriver());
|
|
driver = nextDriver->AsAudioCallbackDriver();
|
|
} else {
|
|
driver = new AudioCallbackDriver(this);
|
|
MonitorAutoLock lock(mMonitor);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
}
|
|
driver->EnqueueStreamAndPromiseForOperation(aDestinationStream,
|
|
aPromise, aOperation);
|
|
} else {
|
|
// We are resuming a context, but we are already using an
|
|
// AudioCallbackDriver, we can resolve the promise now.
|
|
AudioContextOperationCompleted(aDestinationStream, aPromise, aOperation);
|
|
}
|
|
}
|
|
// Close, suspend: check if we are going to switch to a
|
|
// SystemAudioCallbackDriver, and pass the promise to the AudioCallbackDriver
|
|
// if that's the case, so it can notify the content.
|
|
// This is the same logic as in UpdateStreamOrder, but it's simpler to have it
|
|
// here as well so we don't have to store the Promise(s) on the Graph.
|
|
if (aOperation != AudioContextOperation::Resume) {
|
|
bool shouldAEC = false;
|
|
bool audioTrackPresent = AudioTrackPresent(shouldAEC);
|
|
|
|
if (!audioTrackPresent && CurrentDriver()->AsAudioCallbackDriver()) {
|
|
CurrentDriver()->AsAudioCallbackDriver()->
|
|
EnqueueStreamAndPromiseForOperation(aDestinationStream, aPromise,
|
|
aOperation);
|
|
|
|
SystemClockDriver* driver;
|
|
if (nextDriver) {
|
|
MOZ_ASSERT(!nextDriver->AsAudioCallbackDriver());
|
|
} else {
|
|
driver = new SystemClockDriver(this);
|
|
MonitorAutoLock lock(mMonitor);
|
|
CurrentDriver()->SwitchAtNextIteration(driver);
|
|
}
|
|
// We are closing or suspending an AudioContext, but we just got resumed.
|
|
// Queue the operation on the next driver so that the ordering is
|
|
// preserved.
|
|
} else if (!audioTrackPresent && switching) {
|
|
MOZ_ASSERT(nextDriver->AsAudioCallbackDriver());
|
|
nextDriver->AsAudioCallbackDriver()->
|
|
EnqueueStreamAndPromiseForOperation(aDestinationStream, aPromise,
|
|
aOperation);
|
|
} else {
|
|
// We are closing or suspending an AudioContext, but something else is
|
|
// using the audio stream, we can resolve the promise now.
|
|
AudioContextOperationCompleted(aDestinationStream, aPromise, aOperation);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
MediaStreamGraph::ApplyAudioContextOperation(MediaStream* aDestinationStream,
|
|
const nsTArray<MediaStream*>& aStreams,
|
|
AudioContextOperation aOperation,
|
|
void* aPromise)
|
|
{
|
|
class AudioContextOperationControlMessage : public ControlMessage
|
|
{
|
|
public:
|
|
AudioContextOperationControlMessage(MediaStream* aDestinationStream,
|
|
const nsTArray<MediaStream*>& aStreams,
|
|
AudioContextOperation aOperation,
|
|
void* aPromise)
|
|
: ControlMessage(aDestinationStream)
|
|
, mStreams(aStreams)
|
|
, mAudioContextOperation(aOperation)
|
|
, mPromise(aPromise)
|
|
{
|
|
}
|
|
void Run() override
|
|
{
|
|
mStream->GraphImpl()->ApplyAudioContextOperationImpl(mStream,
|
|
mStreams, mAudioContextOperation, mPromise);
|
|
}
|
|
void RunDuringShutdown() override
|
|
{
|
|
MOZ_ASSERT(false, "We should be reviving the graph?");
|
|
}
|
|
|
|
private:
|
|
// We don't need strong references here for the same reason ControlMessage
|
|
// doesn't.
|
|
nsTArray<MediaStream*> mStreams;
|
|
AudioContextOperation mAudioContextOperation;
|
|
void* mPromise;
|
|
};
|
|
|
|
MediaStreamGraphImpl* graphImpl = static_cast<MediaStreamGraphImpl*>(this);
|
|
graphImpl->AppendMessage(
|
|
MakeUnique<AudioContextOperationControlMessage>(aDestinationStream, aStreams,
|
|
aOperation, aPromise));
|
|
}
|
|
|
|
bool
|
|
MediaStreamGraph::IsNonRealtime() const
|
|
{
|
|
const MediaStreamGraphImpl* impl = static_cast<const MediaStreamGraphImpl*>(this);
|
|
MediaStreamGraphImpl* graph;
|
|
|
|
return !gGraphs.Get(uint32_t(impl->AudioChannel()), &graph) || graph != impl;
|
|
}
|
|
|
|
void
|
|
MediaStreamGraph::StartNonRealtimeProcessing(uint32_t aTicksToProcess)
|
|
{
|
|
NS_ASSERTION(NS_IsMainThread(), "main thread only");
|
|
|
|
MediaStreamGraphImpl* graph = static_cast<MediaStreamGraphImpl*>(this);
|
|
NS_ASSERTION(!graph->mRealtime, "non-realtime only");
|
|
|
|
if (graph->mNonRealtimeProcessing)
|
|
return;
|
|
|
|
graph->mEndTime =
|
|
graph->RoundUpToNextAudioBlock(graph->mStateComputedTime +
|
|
aTicksToProcess - 1);
|
|
graph->mNonRealtimeProcessing = true;
|
|
graph->EnsureRunInStableState();
|
|
}
|
|
|
|
void
|
|
ProcessedMediaStream::AddInput(MediaInputPort* aPort)
|
|
{
|
|
mInputs.AppendElement(aPort);
|
|
GraphImpl()->SetStreamOrderDirty();
|
|
}
|
|
|
|
void
|
|
MediaStreamGraph::RegisterCaptureStreamForWindow(
|
|
uint64_t aWindowId, ProcessedMediaStream* aCaptureStream)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MediaStreamGraphImpl* graphImpl = static_cast<MediaStreamGraphImpl*>(this);
|
|
graphImpl->RegisterCaptureStreamForWindow(aWindowId, aCaptureStream);
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::RegisterCaptureStreamForWindow(
|
|
uint64_t aWindowId, ProcessedMediaStream* aCaptureStream)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
WindowAndStream winAndStream;
|
|
winAndStream.mWindowId = aWindowId;
|
|
winAndStream.mCaptureStreamSink = aCaptureStream;
|
|
mWindowCaptureStreams.AppendElement(winAndStream);
|
|
}
|
|
|
|
void
|
|
MediaStreamGraph::UnregisterCaptureStreamForWindow(uint64_t aWindowId)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
MediaStreamGraphImpl* graphImpl = static_cast<MediaStreamGraphImpl*>(this);
|
|
graphImpl->UnregisterCaptureStreamForWindow(aWindowId);
|
|
}
|
|
|
|
void
|
|
MediaStreamGraphImpl::UnregisterCaptureStreamForWindow(uint64_t aWindowId)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
for (int32_t i = mWindowCaptureStreams.Length() - 1; i >= 0; i--) {
|
|
if (mWindowCaptureStreams[i].mWindowId == aWindowId) {
|
|
mWindowCaptureStreams.RemoveElementAt(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
already_AddRefed<MediaInputPort>
|
|
MediaStreamGraph::ConnectToCaptureStream(uint64_t aWindowId,
|
|
MediaStream* aMediaStream)
|
|
{
|
|
return aMediaStream->GraphImpl()->ConnectToCaptureStream(aWindowId,
|
|
aMediaStream);
|
|
}
|
|
|
|
already_AddRefed<MediaInputPort>
|
|
MediaStreamGraphImpl::ConnectToCaptureStream(uint64_t aWindowId,
|
|
MediaStream* aMediaStream)
|
|
{
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
for (uint32_t i = 0; i < mWindowCaptureStreams.Length(); i++) {
|
|
if (mWindowCaptureStreams[i].mWindowId == aWindowId) {
|
|
ProcessedMediaStream* sink = mWindowCaptureStreams[i].mCaptureStreamSink;
|
|
return sink->AllocateInputPort(aMediaStream);
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
} // namespace mozilla
|