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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/media/DeviceInputTrack.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/DeviceInputTrack.cpp')
-rw-r--r--dom/media/DeviceInputTrack.cpp694
1 files changed, 694 insertions, 0 deletions
diff --git a/dom/media/DeviceInputTrack.cpp b/dom/media/DeviceInputTrack.cpp
new file mode 100644
index 0000000000..5e67cd9b6c
--- /dev/null
+++ b/dom/media/DeviceInputTrack.cpp
@@ -0,0 +1,694 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+#include "DeviceInputTrack.h"
+
+#include "MediaTrackGraphImpl.h"
+#include "Tracing.h"
+
+namespace mozilla {
+
+#ifdef LOG_INTERNAL
+# undef LOG_INTERNAL
+#endif // LOG_INTERNAL
+#define LOG_INTERNAL(level, msg, ...) \
+ MOZ_LOG(gMediaTrackGraphLog, LogLevel::level, (msg, ##__VA_ARGS__))
+
+#ifdef LOG
+# undef LOG
+#endif // LOG
+#define LOG(msg, ...) LOG_INTERNAL(Debug, msg, ##__VA_ARGS__)
+
+#ifdef LOGE
+# undef LOGE
+#endif // LOGE
+#define LOGE(msg, ...) LOG_INTERNAL(Error, msg, ##__VA_ARGS__)
+
+// This can only be called in graph thread since mGraph->CurrentDriver() is
+// graph thread only
+#ifdef TRACK_GRAPH_LOG_INTERNAL
+# undef TRACK_GRAPH_LOG_INTERNAL
+#endif // TRACK_GRAPH_LOG_INTERNAL
+#define TRACK_GRAPH_LOG_INTERNAL(level, msg, ...) \
+ LOG_INTERNAL(level, "(Graph %p, Driver %p) DeviceInputTrack %p, " msg, \
+ this->mGraph, this->mGraph->CurrentDriver(), this, \
+ ##__VA_ARGS__)
+
+#ifdef TRACK_GRAPH_LOG
+# undef TRACK_GRAPH_LOG
+#endif // TRACK_GRAPH_LOG
+#define TRACK_GRAPH_LOG(msg, ...) \
+ TRACK_GRAPH_LOG_INTERNAL(Debug, msg, ##__VA_ARGS__)
+
+#ifdef TRACK_GRAPH_LOGV
+# undef TRACK_GRAPH_LOGV
+#endif // TRACK_GRAPH_LOGV
+#define TRACK_GRAPH_LOGV(msg, ...) \
+ TRACK_GRAPH_LOG_INTERNAL(Verbose, msg, ##__VA_ARGS__)
+
+#ifdef TRACK_GRAPH_LOGE
+# undef TRACK_GRAPH_LOGE
+#endif // TRACK_GRAPH_LOGE
+#define TRACK_GRAPH_LOGE(msg, ...) \
+ TRACK_GRAPH_LOG_INTERNAL(Error, msg, ##__VA_ARGS__)
+
+#ifdef CONSUMER_GRAPH_LOG_INTERNAL
+# undef CONSUMER_GRAPH_LOG_INTERNAL
+#endif // CONSUMER_GRAPH_LOG_INTERNAL
+#define CONSUMER_GRAPH_LOG_INTERNAL(level, msg, ...) \
+ LOG_INTERNAL( \
+ level, "(Graph %p, Driver %p) DeviceInputConsumerTrack %p, " msg, \
+ this->mGraph, this->mGraph->CurrentDriver(), this, ##__VA_ARGS__)
+
+#ifdef CONSUMER_GRAPH_LOGV
+# undef CONSUMER_GRAPH_LOGV
+#endif // CONSUMER_GRAPH_LOGV
+#define CONSUMER_GRAPH_LOGV(msg, ...) \
+ CONSUMER_GRAPH_LOG_INTERNAL(Verbose, msg, ##__VA_ARGS__)
+
+DeviceInputConsumerTrack::DeviceInputConsumerTrack(TrackRate aSampleRate)
+ : ProcessedMediaTrack(aSampleRate, MediaSegment::AUDIO,
+ new AudioSegment()) {}
+
+void DeviceInputConsumerTrack::ConnectDeviceInput(
+ CubebUtils::AudioDeviceID aId, AudioDataListener* aListener,
+ const PrincipalHandle& aPrincipal) {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(GraphImpl());
+ MOZ_ASSERT(aListener);
+ MOZ_ASSERT(!mListener);
+ MOZ_ASSERT(!mDeviceInputTrack);
+ MOZ_ASSERT(mDeviceId.isNothing());
+ MOZ_ASSERT(!mDeviceInputTrack,
+ "Must disconnect a device input before connecting a new one");
+
+ mListener = aListener;
+ mDeviceId.emplace(aId);
+
+ mDeviceInputTrack =
+ DeviceInputTrack::OpenAudio(GraphImpl(), aId, aPrincipal, this);
+ LOG("Open device %p (DeviceInputTrack %p) for consumer %p", aId,
+ mDeviceInputTrack.get(), this);
+ mPort = AllocateInputPort(mDeviceInputTrack.get());
+}
+
+void DeviceInputConsumerTrack::DisconnectDeviceInput() {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(GraphImpl());
+
+ if (!mListener) {
+ MOZ_ASSERT(mDeviceId.isNothing());
+ MOZ_ASSERT(!mDeviceInputTrack);
+ return;
+ }
+
+ MOZ_ASSERT(mPort);
+ MOZ_ASSERT(mDeviceInputTrack);
+ MOZ_ASSERT(mDeviceId.isSome());
+
+ LOG("Close device %p (DeviceInputTrack %p) for consumer %p ", *mDeviceId,
+ mDeviceInputTrack.get(), this);
+ mPort->Destroy();
+ DeviceInputTrack::CloseAudio(mDeviceInputTrack.forget(), this);
+ mListener = nullptr;
+ mDeviceId = Nothing();
+}
+
+Maybe<CubebUtils::AudioDeviceID> DeviceInputConsumerTrack::DeviceId() const {
+ MOZ_ASSERT(NS_IsMainThread());
+ return mDeviceId;
+}
+
+NotNull<AudioDataListener*> DeviceInputConsumerTrack::GetAudioDataListener()
+ const {
+ MOZ_ASSERT(NS_IsMainThread());
+ return WrapNotNull(mListener.get());
+}
+
+bool DeviceInputConsumerTrack::ConnectToNativeDevice() const {
+ MOZ_ASSERT(NS_IsMainThread());
+ return mDeviceInputTrack && mDeviceInputTrack->AsNativeInputTrack();
+}
+
+bool DeviceInputConsumerTrack::ConnectToNonNativeDevice() const {
+ MOZ_ASSERT(NS_IsMainThread());
+ return mDeviceInputTrack && mDeviceInputTrack->AsNonNativeInputTrack();
+}
+
+void DeviceInputConsumerTrack::GetInputSourceData(AudioSegment& aOutput,
+ const MediaInputPort* aPort,
+ GraphTime aFrom,
+ GraphTime aTo) const {
+ MOZ_ASSERT(mGraph->OnGraphThread());
+ MOZ_ASSERT(aOutput.IsEmpty());
+
+ MediaTrack* source = aPort->GetSource();
+ GraphTime next;
+ for (GraphTime t = aFrom; t < aTo; t = next) {
+ MediaInputPort::InputInterval interval =
+ MediaInputPort::GetNextInputInterval(aPort, t);
+ interval.mEnd = std::min(interval.mEnd, aTo);
+
+ const bool inputEnded =
+ source->Ended() &&
+ source->GetEnd() <=
+ source->GraphTimeToTrackTimeWithBlocking(interval.mStart);
+
+ TrackTime ticks = interval.mEnd - interval.mStart;
+ next = interval.mEnd;
+
+ if (interval.mStart >= interval.mEnd) {
+ break;
+ }
+
+ if (inputEnded) {
+ aOutput.AppendNullData(ticks);
+ CONSUMER_GRAPH_LOGV(
+ "Getting %" PRId64
+ " ticks of null data from input port source (ended input)",
+ ticks);
+ } else if (interval.mInputIsBlocked) {
+ aOutput.AppendNullData(ticks);
+ CONSUMER_GRAPH_LOGV(
+ "Getting %" PRId64
+ " ticks of null data from input port source (blocked input)",
+ ticks);
+ } else if (source->IsSuspended()) {
+ aOutput.AppendNullData(ticks);
+ CONSUMER_GRAPH_LOGV(
+ "Getting %" PRId64
+ " ticks of null data from input port source (source is suspended)",
+ ticks);
+ } else {
+ TrackTime start =
+ source->GraphTimeToTrackTimeWithBlocking(interval.mStart);
+ TrackTime end = source->GraphTimeToTrackTimeWithBlocking(interval.mEnd);
+ MOZ_ASSERT(source->GetData<AudioSegment>()->GetDuration() >= end);
+ aOutput.AppendSlice(*source->GetData<AudioSegment>(), start, end);
+ CONSUMER_GRAPH_LOGV("Getting %" PRId64
+ " ticks of real data from input port source %p",
+ end - start, source);
+ }
+ }
+}
+
+/* static */
+NotNull<RefPtr<DeviceInputTrack>> DeviceInputTrack::OpenAudio(
+ MediaTrackGraphImpl* aGraph, CubebUtils::AudioDeviceID aDeviceId,
+ const PrincipalHandle& aPrincipalHandle,
+ DeviceInputConsumerTrack* aConsumer) {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(aConsumer);
+ MOZ_ASSERT(aGraph == aConsumer->GraphImpl());
+
+ RefPtr<DeviceInputTrack> track =
+ aGraph->GetDeviceInputTrackMainThread(aDeviceId);
+ if (track) {
+ MOZ_ASSERT(!track->mConsumerTracks.IsEmpty());
+ track->AddDataListener(aConsumer->GetAudioDataListener());
+ } else {
+ // Create a NativeInputTrack or NonNativeInputTrack, depending on whether
+ // the given graph already has a native device or not.
+ if (aGraph->GetNativeInputTrackMainThread()) {
+ // A native device is already in use. This device will be a non-native
+ // device.
+ track = new NonNativeInputTrack(aGraph->GraphRate(), aDeviceId,
+ aPrincipalHandle);
+ } else {
+ // No native device is in use. This device will be the native device.
+ track = new NativeInputTrack(aGraph->GraphRate(), aDeviceId,
+ aPrincipalHandle);
+ }
+ LOG("Create %sNativeInputTrack %p in MTG %p for device %p",
+ (track->AsNativeInputTrack() ? "" : "Non"), track.get(), aGraph,
+ aDeviceId);
+ aGraph->AddTrack(track);
+ // Add the listener before opening the device so the device passed to
+ // OpenAudioInput always has a non-zero input channel count.
+ track->AddDataListener(aConsumer->GetAudioDataListener());
+ aGraph->OpenAudioInput(track);
+ }
+ MOZ_ASSERT(track->AsNativeInputTrack() || track->AsNonNativeInputTrack());
+ MOZ_ASSERT(track->mDeviceId == aDeviceId);
+
+ MOZ_ASSERT(!track->mConsumerTracks.Contains(aConsumer));
+ track->mConsumerTracks.AppendElement(aConsumer);
+
+ LOG("DeviceInputTrack %p (device %p: %snative) in MTG %p has %zu users now",
+ track.get(), track->mDeviceId,
+ (track->AsNativeInputTrack() ? "" : "non-"), aGraph,
+ track->mConsumerTracks.Length());
+ if (track->mConsumerTracks.Length() > 1) {
+ track->ReevaluateInputDevice();
+ }
+
+ return WrapNotNull(track);
+}
+
+/* static */
+void DeviceInputTrack::CloseAudio(already_AddRefed<DeviceInputTrack> aTrack,
+ DeviceInputConsumerTrack* aConsumer) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ RefPtr<DeviceInputTrack> track = aTrack;
+ MOZ_ASSERT(track);
+
+ track->RemoveDataListener(aConsumer->GetAudioDataListener());
+ DebugOnly<bool> removed = track->mConsumerTracks.RemoveElement(aConsumer);
+ MOZ_ASSERT(removed);
+ LOG("DeviceInputTrack %p (device %p) in MTG %p has %zu users now",
+ track.get(), track->mDeviceId, track->GraphImpl(),
+ track->mConsumerTracks.Length());
+ if (track->mConsumerTracks.IsEmpty()) {
+ track->GraphImpl()->CloseAudioInput(track);
+ track->Destroy();
+ } else {
+ track->ReevaluateInputDevice();
+ }
+}
+
+const nsTArray<RefPtr<DeviceInputConsumerTrack>>&
+DeviceInputTrack::GetConsumerTracks() const {
+ MOZ_ASSERT(NS_IsMainThread());
+ return mConsumerTracks;
+}
+
+DeviceInputTrack::DeviceInputTrack(TrackRate aSampleRate,
+ CubebUtils::AudioDeviceID aDeviceId,
+ const PrincipalHandle& aPrincipalHandle)
+ : ProcessedMediaTrack(aSampleRate, MediaSegment::AUDIO, new AudioSegment()),
+ mDeviceId(aDeviceId),
+ mPrincipalHandle(aPrincipalHandle) {}
+
+uint32_t DeviceInputTrack::MaxRequestedInputChannels() const {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+ uint32_t maxInputChannels = 0;
+ for (const auto& listener : mListeners) {
+ maxInputChannels = std::max(maxInputChannels,
+ listener->RequestedInputChannelCount(mGraph));
+ }
+ return maxInputChannels;
+}
+
+bool DeviceInputTrack::HasVoiceInput() const {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+ for (const auto& listener : mListeners) {
+ if (listener->IsVoiceInput(mGraph)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+void DeviceInputTrack::DeviceChanged(MediaTrackGraphImpl* aGraph) const {
+ MOZ_ASSERT(aGraph->OnGraphThreadOrNotRunning());
+ MOZ_ASSERT(aGraph == mGraph,
+ "Receive device changed signal from another graph");
+ TRACK_GRAPH_LOG("DeviceChanged");
+ for (const auto& listener : mListeners) {
+ listener->DeviceChanged(aGraph);
+ }
+}
+
+void DeviceInputTrack::ReevaluateInputDevice() {
+ MOZ_ASSERT(NS_IsMainThread());
+ class Message : public ControlMessage {
+ public:
+ explicit Message(MediaTrack* aTrack, CubebUtils::AudioDeviceID aDeviceId)
+ : ControlMessage(aTrack), mDeviceId(aDeviceId) {}
+ void Run() override {
+ TRACE("DeviceInputTrack::ReevaluateInputDevice ControlMessage");
+ mTrack->GraphImpl()->ReevaluateInputDevice(mDeviceId);
+ }
+ CubebUtils::AudioDeviceID mDeviceId;
+ };
+ mGraph->AppendMessage(MakeUnique<Message>(this, mDeviceId));
+}
+
+void DeviceInputTrack::AddDataListener(AudioDataListener* aListener) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ class Message : public ControlMessage {
+ public:
+ Message(DeviceInputTrack* aInputTrack, AudioDataListener* aListener)
+ : ControlMessage(nullptr),
+ mInputTrack(aInputTrack),
+ mListener(aListener) {}
+ void Run() override {
+ TRACE("DeviceInputTrack::AddDataListener ControlMessage");
+ MOZ_ASSERT(!mInputTrack->mListeners.Contains(mListener.get()),
+ "Don't add a listener twice.");
+ mInputTrack->mListeners.AppendElement(mListener.get());
+ }
+ RefPtr<DeviceInputTrack> mInputTrack;
+ RefPtr<AudioDataListener> mListener;
+ };
+
+ mGraph->AppendMessage(MakeUnique<Message>(this, aListener));
+}
+
+void DeviceInputTrack::RemoveDataListener(AudioDataListener* aListener) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ class Message : public ControlMessage {
+ public:
+ Message(DeviceInputTrack* aInputTrack, AudioDataListener* aListener)
+ : ControlMessage(nullptr),
+ mInputTrack(aInputTrack),
+ mListener(aListener) {}
+ void Run() override {
+ TRACE("DeviceInputTrack::RemoveDataListener ControlMessage");
+ DebugOnly<bool> wasPresent =
+ mInputTrack->mListeners.RemoveElement(mListener.get());
+ MOZ_ASSERT(wasPresent, "Remove an unknown listener");
+ mListener->Disconnect(mInputTrack->GraphImpl());
+ }
+ RefPtr<DeviceInputTrack> mInputTrack;
+ RefPtr<AudioDataListener> mListener;
+ };
+
+ mGraph->AppendMessage(MakeUnique<Message>(this, aListener));
+}
+
+NativeInputTrack::NativeInputTrack(TrackRate aSampleRate,
+ CubebUtils::AudioDeviceID aDeviceId,
+ const PrincipalHandle& aPrincipalHandle)
+ : DeviceInputTrack(aSampleRate, aDeviceId, aPrincipalHandle),
+ mIsBufferingAppended(false),
+ mInputChannels(0) {}
+
+void NativeInputTrack::DestroyImpl() {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+ mPendingData.Clear();
+ ProcessedMediaTrack::DestroyImpl();
+}
+
+void NativeInputTrack::ProcessInput(GraphTime aFrom, GraphTime aTo,
+ uint32_t aFlags) {
+ MOZ_ASSERT(mGraph->OnGraphThread());
+ TRACE_COMMENT("NativeInputTrack::ProcessInput", "%p", this);
+
+ TRACK_GRAPH_LOGV("(Native) ProcessInput from %" PRId64 " to %" PRId64
+ ", needs %" PRId64 " frames",
+ aFrom, aTo, aTo - aFrom);
+
+ TrackTime from = GraphTimeToTrackTime(aFrom);
+ TrackTime to = GraphTimeToTrackTime(aTo);
+ if (from >= to) {
+ return;
+ }
+
+ MOZ_ASSERT_IF(!mIsBufferingAppended, mPendingData.IsEmpty());
+
+ TrackTime need = to - from;
+ TrackTime dataNeed = std::min(mPendingData.GetDuration(), need);
+ TrackTime silenceNeed = std::max(need - dataNeed, (TrackTime)0);
+
+ MOZ_ASSERT_IF(dataNeed > 0, silenceNeed == 0);
+
+ GetData<AudioSegment>()->AppendSlice(mPendingData, 0, dataNeed);
+ mPendingData.RemoveLeading(dataNeed);
+ GetData<AudioSegment>()->AppendNullData(silenceNeed);
+}
+
+uint32_t NativeInputTrack::NumberOfChannels() const {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+ return mInputChannels;
+}
+
+void NativeInputTrack::NotifyInputStopped(MediaTrackGraphImpl* aGraph) {
+ MOZ_ASSERT(aGraph->OnGraphThreadOrNotRunning());
+ MOZ_ASSERT(aGraph == mGraph,
+ "Receive input stopped signal from another graph");
+ TRACK_GRAPH_LOG("(Native) NotifyInputStopped");
+ mInputChannels = 0;
+ mIsBufferingAppended = false;
+ mPendingData.Clear();
+}
+
+void NativeInputTrack::NotifyInputData(MediaTrackGraphImpl* aGraph,
+ const AudioDataValue* aBuffer,
+ size_t aFrames, TrackRate aRate,
+ uint32_t aChannels,
+ uint32_t aAlreadyBuffered) {
+ MOZ_ASSERT(aGraph->OnGraphThread());
+ MOZ_ASSERT(aGraph == mGraph, "Receive input data from another graph");
+ TRACK_GRAPH_LOGV(
+ "NotifyInputData: frames=%zu, rate=%d, channel=%u, alreadyBuffered=%u",
+ aFrames, aRate, aChannels, aAlreadyBuffered);
+
+ if (!mIsBufferingAppended) {
+ // First time we see live frames getting added. Use what's already buffered
+ // in the driver's scratch buffer as a starting point.
+ MOZ_ASSERT(mPendingData.IsEmpty());
+ constexpr TrackTime buffering = WEBAUDIO_BLOCK_SIZE;
+ const TrackTime remaining =
+ buffering - static_cast<TrackTime>(aAlreadyBuffered);
+ mPendingData.AppendNullData(remaining);
+ mIsBufferingAppended = true;
+ TRACK_GRAPH_LOG("Set mIsBufferingAppended by appending %" PRId64 " frames.",
+ remaining);
+ }
+
+ MOZ_ASSERT(aChannels);
+ if (!mInputChannels) {
+ mInputChannels = aChannels;
+ }
+ mPendingData.AppendFromInterleavedBuffer(aBuffer, aFrames, aChannels,
+ mPrincipalHandle);
+}
+
+NonNativeInputTrack::NonNativeInputTrack(
+ TrackRate aSampleRate, CubebUtils::AudioDeviceID aDeviceId,
+ const PrincipalHandle& aPrincipalHandle)
+ : DeviceInputTrack(aSampleRate, aDeviceId, aPrincipalHandle),
+ mAudioSource(nullptr),
+ mSourceIdNumber(0),
+ mGraphDriverThreadId(std::thread::id()) {}
+
+void NonNativeInputTrack::DestroyImpl() {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+ if (mAudioSource) {
+ mAudioSource->Stop();
+ mAudioSource = nullptr;
+ }
+ ProcessedMediaTrack::DestroyImpl();
+}
+
+void NonNativeInputTrack::ProcessInput(GraphTime aFrom, GraphTime aTo,
+ uint32_t aFlags) {
+ MOZ_ASSERT(mGraph->OnGraphThread());
+ TRACE_COMMENT("NonNativeInputTrack::ProcessInput", "%p", this);
+
+ TRACK_GRAPH_LOGV("(NonNative) ProcessInput from %" PRId64 " to %" PRId64
+ ", needs %" PRId64 " frames",
+ aFrom, aTo, aTo - aFrom);
+
+ TrackTime from = GraphTimeToTrackTime(aFrom);
+ TrackTime to = GraphTimeToTrackTime(aTo);
+ if (from >= to) {
+ return;
+ }
+
+ TrackTime delta = to - from;
+ if (!mAudioSource) {
+ GetData<AudioSegment>()->AppendNullData(delta);
+ return;
+ }
+
+ // GetAudioSegment only checks the given reader if DEBUG is defined.
+ AudioInputSource::Consumer consumer =
+#ifdef DEBUG
+ // If we are on GraphRunner, we should always be on the same thread.
+ mGraph->mGraphRunner || !CheckGraphDriverChanged()
+ ? AudioInputSource::Consumer::Same
+ : AudioInputSource::Consumer::Changed;
+#else
+ AudioInputSource::Consumer::Same;
+#endif
+
+ AudioSegment data = mAudioSource->GetAudioSegment(delta, consumer);
+ MOZ_ASSERT(data.GetDuration() == delta);
+ GetData<AudioSegment>()->AppendFrom(&data);
+}
+
+uint32_t NonNativeInputTrack::NumberOfChannels() const {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+ return mAudioSource ? mAudioSource->mChannelCount : 0;
+}
+
+void NonNativeInputTrack::StartAudio(
+ RefPtr<AudioInputSource>&& aAudioInputSource) {
+ MOZ_ASSERT(mGraph->OnGraphThread());
+ MOZ_ASSERT(aAudioInputSource->mPrincipalHandle == mPrincipalHandle);
+ MOZ_ASSERT(aAudioInputSource->mDeviceId == mDeviceId);
+
+ TRACK_GRAPH_LOG("StartAudio with source %p", aAudioInputSource.get());
+ mAudioSource = std::move(aAudioInputSource);
+ mAudioSource->Start();
+}
+
+void NonNativeInputTrack::StopAudio() {
+ MOZ_ASSERT(mGraph->OnGraphThread());
+
+ TRACK_GRAPH_LOG("StopAudio from source %p", mAudioSource.get());
+ if (!mAudioSource) {
+ return;
+ }
+ mAudioSource->Stop();
+ mAudioSource = nullptr;
+}
+
+AudioInputType NonNativeInputTrack::DevicePreference() const {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+ return mAudioSource && mAudioSource->mIsVoice ? AudioInputType::Voice
+ : AudioInputType::Unknown;
+}
+
+void NonNativeInputTrack::NotifyDeviceChanged(uint32_t aSourceId) {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+
+ // No need to forward the notification if the audio input has been stopped or
+ // restarted by it users.
+ if (!mAudioSource || mAudioSource->mId != aSourceId) {
+ TRACK_GRAPH_LOG("(NonNative) NotifyDeviceChanged: No need to forward");
+ return;
+ }
+
+ TRACK_GRAPH_LOG("(NonNative) NotifyDeviceChanged");
+ // Forward the notification.
+ DeviceInputTrack::DeviceChanged(mGraph);
+}
+
+void NonNativeInputTrack::NotifyInputStopped(uint32_t aSourceId) {
+ MOZ_ASSERT(mGraph->OnGraphThreadOrNotRunning());
+
+ // No need to forward the notification if the audio input has been stopped or
+ // restarted by it users.
+ if (!mAudioSource || mAudioSource->mId != aSourceId) {
+ TRACK_GRAPH_LOG("(NonNative) NotifyInputStopped: No need to forward");
+ return;
+ }
+
+ TRACK_GRAPH_LOGE(
+ "(NonNative) NotifyInputStopped: audio unexpectedly stopped");
+ // Destory the underlying audio stream if it's stopped unexpectedly.
+ mAudioSource->Stop();
+}
+
+AudioInputSource::Id NonNativeInputTrack::GenerateSourceId() {
+ MOZ_ASSERT(mGraph->OnGraphThread());
+ return mSourceIdNumber++;
+}
+
+bool NonNativeInputTrack::CheckGraphDriverChanged() {
+ MOZ_ASSERT(mGraph->CurrentDriver()->OnThread());
+
+ std::thread::id currentId = std::this_thread::get_id();
+ if (mGraphDriverThreadId == currentId) {
+ return false;
+ }
+ mGraphDriverThreadId = currentId;
+ return true;
+}
+
+AudioInputSourceListener::AudioInputSourceListener(NonNativeInputTrack* aOwner)
+ : mOwner(aOwner) {}
+
+void AudioInputSourceListener::AudioDeviceChanged(
+ AudioInputSource::Id aSourceId) {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(mOwner);
+
+ if (mOwner->IsDestroyed()) {
+ LOG("NonNativeInputTrack %p has been destroyed. No need to forward the "
+ "audio device-changed notification",
+ mOwner.get());
+ return;
+ }
+
+ class DeviceChangedMessage : public ControlMessage {
+ public:
+ DeviceChangedMessage(NonNativeInputTrack* aInputTrack,
+ AudioInputSource::Id aSourceId)
+ : ControlMessage(nullptr),
+ mInputTrack(aInputTrack),
+ mSourceId(aSourceId) {
+ MOZ_ASSERT(mInputTrack);
+ }
+ void Run() override {
+ TRACE("NonNativeInputTrack::AudioDeviceChanged ControlMessage");
+ mInputTrack->NotifyDeviceChanged(mSourceId);
+ }
+ RefPtr<NonNativeInputTrack> mInputTrack;
+ AudioInputSource::Id mSourceId;
+ };
+
+ MOZ_DIAGNOSTIC_ASSERT(mOwner->GraphImpl());
+ mOwner->GraphImpl()->AppendMessage(
+ MakeUnique<DeviceChangedMessage>(mOwner.get(), aSourceId));
+}
+
+void AudioInputSourceListener::AudioStateCallback(
+ AudioInputSource::Id aSourceId,
+ AudioInputSource::EventListener::State aState) {
+ MOZ_ASSERT(NS_IsMainThread());
+ MOZ_ASSERT(mOwner);
+
+ const char* state =
+ aState == AudioInputSource::EventListener::State::Started ? "started"
+ : aState == AudioInputSource::EventListener::State::Stopped ? "stopped"
+ : aState == AudioInputSource::EventListener::State::Drained ? "drained"
+ : "error";
+
+ if (mOwner->IsDestroyed()) {
+ LOG("NonNativeInputTrack %p has been destroyed. No need to forward the "
+ "audio state-changed(%s) notification",
+ mOwner.get(), state);
+ return;
+ }
+
+ if (aState == AudioInputSource::EventListener::State::Started) {
+ LOG("We can ignore %s notification for NonNativeInputTrack %p", state,
+ mOwner.get());
+ return;
+ }
+
+ LOG("Notify audio stopped due to entering %s state", state);
+
+ class InputStoppedMessage : public ControlMessage {
+ public:
+ InputStoppedMessage(NonNativeInputTrack* aInputTrack,
+ AudioInputSource::Id aSourceId)
+ : ControlMessage(nullptr),
+ mInputTrack(aInputTrack),
+ mSourceId(aSourceId) {
+ MOZ_ASSERT(mInputTrack);
+ }
+ void Run() override {
+ TRACE("NonNativeInputTrack::AudioStateCallback ControlMessage");
+ mInputTrack->NotifyInputStopped(mSourceId);
+ }
+ RefPtr<NonNativeInputTrack> mInputTrack;
+ AudioInputSource::Id mSourceId;
+ };
+
+ MOZ_DIAGNOSTIC_ASSERT(mOwner->GraphImpl());
+ mOwner->GraphImpl()->AppendMessage(
+ MakeUnique<InputStoppedMessage>(mOwner.get(), aSourceId));
+}
+
+#undef LOG_INTERNAL
+#undef LOG
+#undef LOGE
+#undef TRACK_GRAPH_LOG_INTERNAL
+#undef TRACK_GRAPH_LOG
+#undef TRACK_GRAPH_LOGV
+#undef TRACK_GRAPH_LOGE
+#undef CONSUMER_GRAPH_LOG_INTERNAL
+#undef CONSUMER_GRAPH_LOGV
+
+} // namespace mozilla