| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "content/renderer/media/audio_message_filter.h" |
| |
| #include "base/bind.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/strings/stringprintf.h" |
| #include "content/common/media/audio_messages.h" |
| #include "content/renderer/media/webrtc_logging.h" |
| #include "content/renderer/render_thread_impl.h" |
| #include "ipc/ipc_logging.h" |
| |
| namespace content { |
| |
| namespace { |
| const int kStreamIDNotSet = -1; |
| } |
| |
| class AudioMessageFilter::AudioOutputIPCImpl : public media::AudioOutputIPC { |
| public: |
| AudioOutputIPCImpl(const scoped_refptr<AudioMessageFilter>& filter, |
| int render_frame_id); |
| ~AudioOutputIPCImpl() override; |
| |
| // media::AudioOutputIPC implementation. |
| void RequestDeviceAuthorization(media::AudioOutputIPCDelegate* delegate, |
| int session_id, |
| const std::string& device_id, |
| const url::Origin& security_origin) override; |
| void CreateStream(media::AudioOutputIPCDelegate* delegate, |
| const media::AudioParameters& params) override; |
| void PlayStream() override; |
| void PauseStream() override; |
| void CloseStream() override; |
| void SetVolume(double volume) override; |
| |
| private: |
| const scoped_refptr<AudioMessageFilter> filter_; |
| const int render_frame_id_; |
| int stream_id_; |
| bool stream_created_; |
| }; |
| |
| AudioMessageFilter* AudioMessageFilter::g_filter = nullptr; |
| |
| AudioMessageFilter::AudioMessageFilter( |
| scoped_refptr<base::SingleThreadTaskRunner> io_task_runner) |
| : sender_(nullptr), io_task_runner_(io_task_runner) { |
| DCHECK(!g_filter); |
| g_filter = this; |
| } |
| |
| AudioMessageFilter::~AudioMessageFilter() { |
| DCHECK_EQ(g_filter, this); |
| g_filter = nullptr; |
| } |
| |
| // static |
| AudioMessageFilter* AudioMessageFilter::Get() { |
| return g_filter; |
| } |
| |
| AudioMessageFilter::AudioOutputIPCImpl::AudioOutputIPCImpl( |
| const scoped_refptr<AudioMessageFilter>& filter, |
| int render_frame_id) |
| : filter_(filter), |
| render_frame_id_(render_frame_id), |
| stream_id_(kStreamIDNotSet), |
| stream_created_(false) {} |
| |
| AudioMessageFilter::AudioOutputIPCImpl::~AudioOutputIPCImpl() {} |
| |
| std::unique_ptr<media::AudioOutputIPC> AudioMessageFilter::CreateAudioOutputIPC( |
| int render_frame_id) { |
| DCHECK_GT(render_frame_id, 0); |
| return std::unique_ptr<media::AudioOutputIPC>( |
| new AudioOutputIPCImpl(this, render_frame_id)); |
| } |
| |
| void AudioMessageFilter::AudioOutputIPCImpl::RequestDeviceAuthorization( |
| media::AudioOutputIPCDelegate* delegate, |
| int session_id, |
| const std::string& device_id, |
| const url::Origin& security_origin) { |
| DCHECK(filter_->io_task_runner_->BelongsToCurrentThread()); |
| DCHECK(delegate); |
| DCHECK_EQ(stream_id_, kStreamIDNotSet); |
| DCHECK(!stream_created_); |
| |
| stream_id_ = filter_->delegates_.Add(delegate); |
| filter_->Send(new AudioHostMsg_RequestDeviceAuthorization( |
| stream_id_, render_frame_id_, session_id, device_id, |
| url::Origin(security_origin))); |
| } |
| |
| void AudioMessageFilter::AudioOutputIPCImpl::CreateStream( |
| media::AudioOutputIPCDelegate* delegate, |
| const media::AudioParameters& params) { |
| DCHECK(filter_->io_task_runner_->BelongsToCurrentThread()); |
| DCHECK(!stream_created_); |
| if (stream_id_ == kStreamIDNotSet) |
| stream_id_ = filter_->delegates_.Add(delegate); |
| |
| filter_->Send( |
| new AudioHostMsg_CreateStream(stream_id_, render_frame_id_, params)); |
| stream_created_ = true; |
| } |
| |
| void AudioMessageFilter::AudioOutputIPCImpl::PlayStream() { |
| DCHECK(stream_created_); |
| filter_->Send(new AudioHostMsg_PlayStream(stream_id_)); |
| } |
| |
| void AudioMessageFilter::AudioOutputIPCImpl::PauseStream() { |
| DCHECK(stream_created_); |
| filter_->Send(new AudioHostMsg_PauseStream(stream_id_)); |
| } |
| |
| void AudioMessageFilter::AudioOutputIPCImpl::CloseStream() { |
| DCHECK(filter_->io_task_runner_->BelongsToCurrentThread()); |
| DCHECK_NE(stream_id_, kStreamIDNotSet); |
| filter_->Send(new AudioHostMsg_CloseStream(stream_id_)); |
| filter_->delegates_.Remove(stream_id_); |
| stream_id_ = kStreamIDNotSet; |
| stream_created_ = false; |
| } |
| |
| void AudioMessageFilter::AudioOutputIPCImpl::SetVolume(double volume) { |
| DCHECK(stream_created_); |
| filter_->Send(new AudioHostMsg_SetVolume(stream_id_, volume)); |
| } |
| |
| void AudioMessageFilter::Send(IPC::Message* message) { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| if (!sender_) { |
| delete message; |
| } else { |
| sender_->Send(message); |
| } |
| } |
| |
| bool AudioMessageFilter::OnMessageReceived(const IPC::Message& message) { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| bool handled = true; |
| IPC_BEGIN_MESSAGE_MAP(AudioMessageFilter, message) |
| IPC_MESSAGE_HANDLER(AudioMsg_NotifyDeviceAuthorized, OnDeviceAuthorized) |
| IPC_MESSAGE_HANDLER(AudioMsg_NotifyStreamCreated, OnStreamCreated) |
| IPC_MESSAGE_HANDLER(AudioMsg_NotifyStreamError, OnStreamError) |
| IPC_MESSAGE_UNHANDLED(handled = false) |
| IPC_END_MESSAGE_MAP() |
| return handled; |
| } |
| |
| void AudioMessageFilter::OnFilterAdded(IPC::Channel* channel) { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| sender_ = channel; |
| } |
| |
| void AudioMessageFilter::OnFilterRemoved() { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| |
| // Once removed, a filter will not be used again. At this time all |
| // delegates must be notified so they release their reference. |
| OnChannelClosing(); |
| } |
| |
| void AudioMessageFilter::OnChannelClosing() { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| sender_ = nullptr; |
| |
| DLOG_IF(WARNING, !delegates_.IsEmpty()) |
| << "Not all audio devices have been closed."; |
| |
| base::IDMap<media::AudioOutputIPCDelegate*>::iterator it(&delegates_); |
| while (!it.IsAtEnd()) { |
| it.GetCurrentValue()->OnIPCClosed(); |
| delegates_.Remove(it.GetCurrentKey()); |
| it.Advance(); |
| } |
| } |
| |
| void AudioMessageFilter::OnDeviceAuthorized( |
| int stream_id, |
| media::OutputDeviceStatus device_status, |
| const media::AudioParameters& output_params, |
| const std::string& matched_device_id) { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| media::AudioOutputIPCDelegate* delegate = delegates_.Lookup(stream_id); |
| if (!delegate) |
| return; |
| |
| delegate->OnDeviceAuthorized(device_status, output_params, matched_device_id); |
| } |
| |
| void AudioMessageFilter::OnStreamCreated( |
| int stream_id, |
| base::SharedMemoryHandle handle, |
| base::SyncSocket::TransitDescriptor socket_descriptor) { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| |
| WebRtcLogMessage(base::StringPrintf( |
| "AMF::OnStreamCreated. stream_id=%d", |
| stream_id)); |
| |
| base::SyncSocket::Handle socket_handle = |
| base::SyncSocket::UnwrapHandle(socket_descriptor); |
| |
| media::AudioOutputIPCDelegate* delegate = delegates_.Lookup(stream_id); |
| if (!delegate) { |
| DLOG(WARNING) << "Got OnStreamCreated() event for a non-existent or removed" |
| << " audio renderer. (stream_id=" << stream_id << ")."; |
| base::SharedMemory::CloseHandle(handle); |
| base::SyncSocket socket(socket_handle); |
| return; |
| } |
| delegate->OnStreamCreated(handle, socket_handle); |
| } |
| |
| void AudioMessageFilter::OnStreamError(int stream_id) { |
| DCHECK(io_task_runner_->BelongsToCurrentThread()); |
| media::AudioOutputIPCDelegate* delegate = delegates_.Lookup(stream_id); |
| if (!delegate) { |
| DLOG(WARNING) << "Got OnStreamError() event for a non-existent or" |
| << " removed audio renderer."; |
| return; |
| } |
| delegate->OnError(); |
| } |
| |
| } // namespace content |