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72d516ef01
MozReview-Commit-ID: 1KgE3uKu4CG --HG-- extra : rebase_source : 2ad950afe84675fb9bc4c449e53e7c0d52270175
488 lines
19 KiB
C++
488 lines
19 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 "MediaStreamListener.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 "nsIAppShell.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 "nsWidgetsCID.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 "AudioChannelService.h"
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#include "AudioNodeEngine.h"
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#include "AudioNodeStream.h"
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#include "AudioNodeExternalInputStream.h"
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#include "webaudio/MediaStreamAudioDestinationNode.h"
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#include <algorithm>
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#include "DOMMediaStream.h"
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#include "GeckoProfiler.h"
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#ifdef MOZ_WEBRTC
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#include "AudioOutputObserver.h"
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#endif
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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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namespace mozilla {
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#ifdef STREAM_LOG
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#undef STREAM_LOG
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#endif
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LazyLogModule gTrackUnionStreamLog("TrackUnionStream");
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#define STREAM_LOG(type, msg) MOZ_LOG(gTrackUnionStreamLog, type, msg)
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TrackUnionStream::TrackUnionStream(AbstractThread* aMainThread) :
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ProcessedMediaStream(aMainThread), mNextAvailableTrackID(1)
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{
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}
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void TrackUnionStream::RemoveInput(MediaInputPort* aPort)
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{
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p removing input %p", this, aPort));
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for (int32_t i = mTrackMap.Length() - 1; i >= 0; --i) {
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if (mTrackMap[i].mInputPort == aPort) {
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p removing trackmap entry %d", this, i));
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EndTrack(i);
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nsTArray<RefPtr<DirectMediaStreamTrackListener>> listeners(
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mTrackMap[i].mOwnedDirectListeners);
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for (auto listener : listeners) {
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// Remove listeners while the entry still exists.
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RemoveDirectTrackListenerImpl(listener, mTrackMap[i].mOutputTrackID);
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}
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mTrackMap.RemoveElementAt(i);
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}
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}
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ProcessedMediaStream::RemoveInput(aPort);
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}
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void TrackUnionStream::ProcessInput(GraphTime aFrom, GraphTime aTo, uint32_t aFlags)
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{
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if (IsFinishedOnGraphThread()) {
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return;
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}
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AutoTArray<bool,8> mappedTracksFinished;
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AutoTArray<bool,8> mappedTracksWithMatchingInputTracks;
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for (uint32_t i = 0; i < mTrackMap.Length(); ++i) {
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mappedTracksFinished.AppendElement(true);
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mappedTracksWithMatchingInputTracks.AppendElement(false);
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}
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AutoTArray<MediaInputPort*, 32> inputs(mInputs);
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inputs.AppendElements(mSuspendedInputs);
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bool allFinished = !inputs.IsEmpty();
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bool allHaveCurrentData = !inputs.IsEmpty();
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for (uint32_t i = 0; i < inputs.Length(); ++i) {
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MediaStream* stream = inputs[i]->GetSource();
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if (!stream->IsFinishedOnGraphThread()) {
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// XXX we really should check whether 'stream' has finished within time aTo,
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// not just that it's finishing when all its queued data eventually runs
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// out.
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allFinished = false;
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}
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if (!stream->HasCurrentData()) {
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allHaveCurrentData = false;
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}
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bool trackAdded = false;
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for (StreamTracks::TrackIter tracks(stream->GetStreamTracks());
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!tracks.IsEnded(); tracks.Next()) {
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bool found = false;
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for (uint32_t j = 0; j < mTrackMap.Length(); ++j) {
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TrackMapEntry* map = &mTrackMap[j];
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if (map->mInputPort == inputs[i] && map->mInputTrackID == tracks->GetID()) {
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bool trackFinished = false;
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StreamTracks::Track* outputTrack = mTracks.FindTrack(map->mOutputTrackID);
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found = true;
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if (!outputTrack || outputTrack->IsEnded() ||
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!inputs[i]->PassTrackThrough(tracks->GetID())) {
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trackFinished = true;
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} else {
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CopyTrackData(tracks.get(), j, aFrom, aTo, &trackFinished);
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}
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mappedTracksFinished[j] = trackFinished;
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mappedTracksWithMatchingInputTracks[j] = true;
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break;
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}
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}
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if (!found && inputs[i]->AllowCreationOf(tracks->GetID())) {
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bool trackFinished = false;
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trackAdded = true;
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uint32_t mapIndex = AddTrack(inputs[i], tracks.get(), aFrom);
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CopyTrackData(tracks.get(), mapIndex, aFrom, aTo, &trackFinished);
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mappedTracksFinished.AppendElement(trackFinished);
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mappedTracksWithMatchingInputTracks.AppendElement(true);
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}
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}
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if (trackAdded) {
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for (MediaStreamListener* l : mListeners) {
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l->NotifyFinishedTrackCreation(Graph());
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}
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}
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}
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for (int32_t i = mTrackMap.Length() - 1; i >= 0; --i) {
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if (mappedTracksFinished[i]) {
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EndTrack(i);
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} else {
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allFinished = false;
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}
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if (!mappedTracksWithMatchingInputTracks[i]) {
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for (auto listener : mTrackMap[i].mOwnedDirectListeners) {
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// Remove listeners while the entry still exists.
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RemoveDirectTrackListenerImpl(listener, mTrackMap[i].mOutputTrackID);
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}
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mTrackMap.RemoveElementAt(i);
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}
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}
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if (allFinished && mAutofinish && (aFlags & ALLOW_FINISH)) {
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// All streams have finished and won't add any more tracks, and
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// all our tracks have actually finished and been removed from our map,
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// so we're finished now.
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FinishOnGraphThread();
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} else {
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mTracks.AdvanceKnownTracksTime(GraphTimeToStreamTimeWithBlocking(aTo));
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}
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if (allHaveCurrentData) {
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// We can make progress if we're not blocked
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mHasCurrentData = true;
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}
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}
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uint32_t TrackUnionStream::AddTrack(MediaInputPort* aPort, StreamTracks::Track* aTrack,
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GraphTime aFrom)
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{
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STREAM_LOG(LogLevel::Verbose, ("TrackUnionStream %p adding track %d for "
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"input stream %p track %d, desired id %d",
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this, aTrack->GetID(), aPort->GetSource(),
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aTrack->GetID(),
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aPort->GetDestinationTrackId()));
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TrackID id;
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if (IsTrackIDExplicit(id = aPort->GetDestinationTrackId())) {
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MOZ_ASSERT(id >= mNextAvailableTrackID &&
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mUsedTracks.BinaryIndexOf(id) == mUsedTracks.NoIndex,
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"Desired destination id taken. Only provide a destination ID "
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"if you can assure its availability, or we may not be able "
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"to bind to the correct DOM-side track.");
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#ifdef DEBUG
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AutoTArray<MediaInputPort*, 32> inputs(mInputs);
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inputs.AppendElements(mSuspendedInputs);
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for (size_t i = 0; inputs[i] != aPort; ++i) {
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MOZ_ASSERT(inputs[i]->GetSourceTrackId() != TRACK_ANY,
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"You are adding a MediaInputPort with a track mapping "
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"while there already exist generic MediaInputPorts for this "
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"destination stream. This can lead to TrackID collisions!");
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}
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#endif
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mUsedTracks.InsertElementSorted(id);
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} else if ((id = aTrack->GetID()) &&
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id > mNextAvailableTrackID &&
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mUsedTracks.BinaryIndexOf(id) == mUsedTracks.NoIndex) {
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// Input id available. Mark it used in mUsedTracks.
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mUsedTracks.InsertElementSorted(id);
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} else {
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// No desired destination id and Input id taken, allocate a new one.
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id = mNextAvailableTrackID;
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// Update mNextAvailableTrackID and prune any mUsedTracks members it now
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// covers.
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while (1) {
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if (!mUsedTracks.RemoveElementSorted(++mNextAvailableTrackID)) {
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// Not in use. We're done.
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break;
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}
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}
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}
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// Round up the track start time so the track, if anything, starts a
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// little later than the true time. This means we'll have enough
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// samples in our input stream to go just beyond the destination time.
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StreamTime outputStart = GraphTimeToStreamTimeWithBlocking(aFrom);
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nsAutoPtr<MediaSegment> segment;
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segment = aTrack->GetSegment()->CreateEmptyClone();
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for (uint32_t j = 0; j < mListeners.Length(); ++j) {
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MediaStreamListener* l = mListeners[j];
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l->NotifyQueuedTrackChanges(Graph(), id, outputStart,
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TrackEventCommand::TRACK_EVENT_CREATED,
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*segment,
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aPort->GetSource(), aTrack->GetID());
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}
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segment->AppendNullData(outputStart);
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StreamTracks::Track* track =
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&mTracks.AddTrack(id, outputStart, segment.forget());
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p added track %d for input stream %p track %d, start ticks %lld",
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this, track->GetID(), aPort->GetSource(), aTrack->GetID(),
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(long long)outputStart));
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TrackMapEntry* map = mTrackMap.AppendElement();
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map->mEndOfConsumedInputTicks = 0;
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map->mEndOfLastInputIntervalInInputStream = -1;
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map->mEndOfLastInputIntervalInOutputStream = -1;
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map->mInputPort = aPort;
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map->mInputTrackID = aTrack->GetID();
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map->mOutputTrackID = track->GetID();
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map->mSegment = aTrack->GetSegment()->CreateEmptyClone();
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for (int32_t i = mPendingDirectTrackListeners.Length() - 1; i >= 0; --i) {
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TrackBound<DirectMediaStreamTrackListener>& bound =
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mPendingDirectTrackListeners[i];
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if (bound.mTrackID != map->mOutputTrackID) {
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continue;
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}
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MediaStream* source = map->mInputPort->GetSource();
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map->mOwnedDirectListeners.AppendElement(bound.mListener);
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DisabledTrackMode currentMode = GetDisabledTrackMode(bound.mTrackID);
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if (currentMode != DisabledTrackMode::ENABLED) {
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bound.mListener->IncreaseDisabled(currentMode);
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}
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p adding direct listener "
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"%p for track %d. Forwarding to input "
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"stream %p track %d.",
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this, bound.mListener.get(), bound.mTrackID,
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source, map->mInputTrackID));
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source->AddDirectTrackListenerImpl(bound.mListener.forget(),
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map->mInputTrackID);
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mPendingDirectTrackListeners.RemoveElementAt(i);
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}
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return mTrackMap.Length() - 1;
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}
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void TrackUnionStream::EndTrack(uint32_t aIndex)
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{
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StreamTracks::Track* outputTrack = mTracks.FindTrack(mTrackMap[aIndex].mOutputTrackID);
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if (!outputTrack || outputTrack->IsEnded())
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return;
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p ending track %d", this, outputTrack->GetID()));
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for (uint32_t j = 0; j < mListeners.Length(); ++j) {
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MediaStreamListener* l = mListeners[j];
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StreamTime offset = outputTrack->GetSegment()->GetDuration();
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nsAutoPtr<MediaSegment> segment;
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segment = outputTrack->GetSegment()->CreateEmptyClone();
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l->NotifyQueuedTrackChanges(Graph(), outputTrack->GetID(), offset,
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TrackEventCommand::TRACK_EVENT_ENDED,
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*segment,
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mTrackMap[aIndex].mInputPort->GetSource(),
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mTrackMap[aIndex].mInputTrackID);
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}
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for (TrackBound<MediaStreamTrackListener>& b : mTrackListeners) {
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if (b.mTrackID == outputTrack->GetID()) {
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b.mListener->NotifyEnded();
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}
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}
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outputTrack->SetEnded();
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}
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void TrackUnionStream::CopyTrackData(StreamTracks::Track* aInputTrack,
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uint32_t aMapIndex, GraphTime aFrom, GraphTime aTo,
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bool* aOutputTrackFinished)
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{
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TrackMapEntry* map = &mTrackMap[aMapIndex];
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StreamTracks::Track* outputTrack = mTracks.FindTrack(map->mOutputTrackID);
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MOZ_ASSERT(outputTrack && !outputTrack->IsEnded(), "Can't copy to ended track");
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MediaSegment* segment = map->mSegment;
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MediaStream* source = map->mInputPort->GetSource();
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GraphTime next;
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*aOutputTrackFinished = false;
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for (GraphTime t = aFrom; t < aTo; t = next) {
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MediaInputPort::InputInterval interval = map->mInputPort->GetNextInputInterval(t);
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interval.mEnd = std::min(interval.mEnd, aTo);
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StreamTime inputEnd = source->GraphTimeToStreamTimeWithBlocking(interval.mEnd);
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StreamTime inputTrackEndPoint = STREAM_TIME_MAX;
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if (aInputTrack->IsEnded() &&
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aInputTrack->GetEnd() <= inputEnd) {
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inputTrackEndPoint = aInputTrack->GetEnd();
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*aOutputTrackFinished = true;
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}
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if (interval.mStart >= interval.mEnd) {
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break;
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}
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StreamTime ticks = interval.mEnd - interval.mStart;
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next = interval.mEnd;
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StreamTime outputStart = outputTrack->GetEnd();
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if (interval.mInputIsBlocked) {
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// Maybe the input track ended?
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segment->AppendNullData(ticks);
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STREAM_LOG(LogLevel::Verbose, ("TrackUnionStream %p appending %lld ticks of null data to track %d",
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this, (long long)ticks, outputTrack->GetID()));
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} else if (InMutedCycle()) {
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segment->AppendNullData(ticks);
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} else {
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if (source->IsSuspended()) {
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segment->AppendNullData(aTo - aFrom);
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} else {
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MOZ_ASSERT(outputTrack->GetEnd() == GraphTimeToStreamTimeWithBlocking(interval.mStart),
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"Samples missing");
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StreamTime inputStart = source->GraphTimeToStreamTimeWithBlocking(interval.mStart);
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segment->AppendSlice(*aInputTrack->GetSegment(),
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std::min(inputTrackEndPoint, inputStart),
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std::min(inputTrackEndPoint, inputEnd));
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}
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}
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ApplyTrackDisabling(outputTrack->GetID(), segment);
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for (uint32_t j = 0; j < mListeners.Length(); ++j) {
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MediaStreamListener* l = mListeners[j];
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// Separate Audio and Video.
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if (segment->GetType() == MediaSegment::AUDIO) {
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l->NotifyQueuedAudioData(Graph(), outputTrack->GetID(),
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outputStart,
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*static_cast<AudioSegment*>(segment),
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map->mInputPort->GetSource(),
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map->mInputTrackID);
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}
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}
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for (TrackBound<MediaStreamTrackListener>& b : mTrackListeners) {
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if (b.mTrackID != outputTrack->GetID()) {
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continue;
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}
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b.mListener->NotifyQueuedChanges(Graph(), outputStart, *segment);
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}
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outputTrack->GetSegment()->AppendFrom(segment);
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}
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}
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void
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TrackUnionStream::SetTrackEnabledImpl(TrackID aTrackID, DisabledTrackMode aMode) {
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bool enabled = aMode == DisabledTrackMode::ENABLED;
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for (TrackMapEntry& entry : mTrackMap) {
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if (entry.mOutputTrackID == aTrackID) {
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STREAM_LOG(LogLevel::Info, ("TrackUnionStream %p track %d was explicitly %s",
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this, aTrackID, enabled ? "enabled" : "disabled"));
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for (DirectMediaStreamTrackListener* listener : entry.mOwnedDirectListeners) {
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DisabledTrackMode oldMode = GetDisabledTrackMode(aTrackID);
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bool oldEnabled = oldMode == DisabledTrackMode::ENABLED;
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if (!oldEnabled && enabled) {
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p track %d setting "
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"direct listener enabled",
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this, aTrackID));
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listener->DecreaseDisabled(oldMode);
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} else if (oldEnabled && !enabled) {
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p track %d setting "
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"direct listener disabled",
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this, aTrackID));
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listener->IncreaseDisabled(aMode);
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}
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}
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}
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}
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MediaStream::SetTrackEnabledImpl(aTrackID, aMode);
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}
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MediaStream*
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TrackUnionStream::GetInputStreamFor(TrackID aTrackID)
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{
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for (TrackMapEntry& entry : mTrackMap) {
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if (entry.mOutputTrackID == aTrackID && entry.mInputPort) {
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return entry.mInputPort->GetSource();
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}
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}
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return nullptr;
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}
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TrackID
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TrackUnionStream::GetInputTrackIDFor(TrackID aTrackID)
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{
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for (TrackMapEntry& entry : mTrackMap) {
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if (entry.mOutputTrackID == aTrackID) {
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return entry.mInputTrackID;
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}
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}
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return TRACK_NONE;
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}
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void
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TrackUnionStream::AddDirectTrackListenerImpl(already_AddRefed<DirectMediaStreamTrackListener> aListener,
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TrackID aTrackID)
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{
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RefPtr<DirectMediaStreamTrackListener> listener = aListener;
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for (TrackMapEntry& entry : mTrackMap) {
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if (entry.mOutputTrackID == aTrackID) {
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MediaStream* source = entry.mInputPort->GetSource();
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p adding direct listener "
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"%p for track %d. Forwarding to input "
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"stream %p track %d.",
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this, listener.get(), aTrackID, source,
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entry.mInputTrackID));
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entry.mOwnedDirectListeners.AppendElement(listener);
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DisabledTrackMode currentMode = GetDisabledTrackMode(aTrackID);
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if (currentMode != DisabledTrackMode::ENABLED) {
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listener->IncreaseDisabled(currentMode);
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}
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source->AddDirectTrackListenerImpl(listener.forget(),
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entry.mInputTrackID);
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return;
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}
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}
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TrackBound<DirectMediaStreamTrackListener>* bound =
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mPendingDirectTrackListeners.AppendElement();
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bound->mListener = listener.forget();
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bound->mTrackID = aTrackID;
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}
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void
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TrackUnionStream::RemoveDirectTrackListenerImpl(DirectMediaStreamTrackListener* aListener,
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TrackID aTrackID)
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{
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for (TrackMapEntry& entry : mTrackMap) {
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// OutputTrackID is unique to this stream so we only need to do this once.
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if (entry.mOutputTrackID != aTrackID) {
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continue;
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}
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for (size_t i = 0; i < entry.mOwnedDirectListeners.Length(); ++i) {
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if (entry.mOwnedDirectListeners[i] == aListener) {
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STREAM_LOG(LogLevel::Debug, ("TrackUnionStream %p removing direct "
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"listener %p for track %d, forwarding "
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"to input stream %p track %d",
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this, aListener, aTrackID,
|
|
entry.mInputPort->GetSource(),
|
|
entry.mInputTrackID));
|
|
DisabledTrackMode currentMode = GetDisabledTrackMode(aTrackID);
|
|
if (currentMode != DisabledTrackMode::ENABLED) {
|
|
// Reset the listener's state.
|
|
aListener->DecreaseDisabled(currentMode);
|
|
}
|
|
entry.mOwnedDirectListeners.RemoveElementAt(i);
|
|
break;
|
|
}
|
|
}
|
|
// Forward to the input
|
|
MediaStream* source = entry.mInputPort->GetSource();
|
|
source->RemoveDirectTrackListenerImpl(aListener, entry.mInputTrackID);
|
|
return;
|
|
}
|
|
|
|
for (size_t i = 0; i < mPendingDirectTrackListeners.Length(); ++i) {
|
|
TrackBound<DirectMediaStreamTrackListener>& bound =
|
|
mPendingDirectTrackListeners[i];
|
|
if (bound.mListener == aListener && bound.mTrackID == aTrackID) {
|
|
mPendingDirectTrackListeners.RemoveElementAt(i);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
} // namespace mozilla
|