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// 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/audio_device_factory.h"
#include <algorithm>
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/threading/platform_thread.h"
#include "build/build_config.h"
#include "content/common/content_constants_internal.h"
#include "content/common/media/renderer_audio_input_stream_factory.mojom.h"
#include "content/renderer/media/audio/audio_input_ipc_factory.h"
#include "content/renderer/media/audio/audio_output_ipc_factory.h"
#include "content/renderer/media/audio/audio_renderer_mixer_manager.h"
#include "content/renderer/media/audio/mojo_audio_input_ipc.h"
#include "content/renderer/render_frame_impl.h"
#include "content/renderer/render_thread_impl.h"
#include "media/audio/audio_input_device.h"
#include "media/audio/audio_output_device.h"
#include "media/base/audio_renderer_mixer_input.h"
#include "media/base/media_switches.h"
namespace content {
// static
AudioDeviceFactory* AudioDeviceFactory::factory_ = nullptr;
namespace {
#if defined(OS_WIN) || defined(OS_MACOSX) || \
(defined(OS_LINUX) && !defined(OS_CHROMEOS))
// Due to driver deadlock issues on Windows (http://crbug/422522) there is a
// chance device authorization response is never received from the browser side.
// In this case we will time out, to avoid renderer hang forever waiting for
// device authorization (http://crbug/615589). This will result in "no audio".
// There are also cases when authorization takes too long on Mac and Linux.
const int64_t kMaxAuthorizationTimeoutMs = 10000;
#else
const int64_t kMaxAuthorizationTimeoutMs = 0; // No timeout.
#endif
scoped_refptr<media::AudioOutputDevice> NewOutputDevice(
int render_frame_id,
int session_id,
const std::string& device_id) {
auto device = base::MakeRefCounted<media::AudioOutputDevice>(
AudioOutputIPCFactory::get()->CreateAudioOutputIPC(render_frame_id),
AudioOutputIPCFactory::get()->io_task_runner(), session_id, device_id,
// Set authorization request timeout at 80% of renderer hung timeout,
// but no more than kMaxAuthorizationTimeout.
base::TimeDelta::FromMilliseconds(
std::min(kHungRendererDelayMs * 8 / 10, kMaxAuthorizationTimeoutMs)));
device->RequestDeviceAuthorization();
return device;
}
// This is where we decide which audio will go to mixers and which one to
// AudioOutpuDevice directly.
bool IsMixable(AudioDeviceFactory::SourceType source_type) {
if (source_type == AudioDeviceFactory::kSourceMediaElement)
return true; // Must ALWAYS go through mixer.
// Mix everything if experiment is enabled; otherwise mix nothing else.
return base::FeatureList::IsEnabled(media::kNewAudioRenderingMixingStrategy);
}
scoped_refptr<media::SwitchableAudioRendererSink> NewMixableSink(
AudioDeviceFactory::SourceType source_type,
int render_frame_id,
int session_id,
const std::string& device_id) {
RenderThreadImpl* render_thread = RenderThreadImpl::current();
DCHECK(render_thread) << "RenderThreadImpl is not instantiated, or "
<< "GetOutputDeviceInfo() is called on a wrong thread ";
return scoped_refptr<media::AudioRendererMixerInput>(
render_thread->GetAudioRendererMixerManager()->CreateInput(
render_frame_id, session_id, device_id,
AudioDeviceFactory::GetSourceLatencyType(source_type)));
}
} // namespace
media::AudioLatency::LatencyType AudioDeviceFactory::GetSourceLatencyType(
AudioDeviceFactory::SourceType source) {
switch (source) {
case AudioDeviceFactory::kSourceWebAudioInteractive:
return media::AudioLatency::LATENCY_INTERACTIVE;
case AudioDeviceFactory::kSourceNone:
case AudioDeviceFactory::kSourceWebRtc:
case AudioDeviceFactory::kSourceNonRtcAudioTrack:
case AudioDeviceFactory::kSourceWebAudioBalanced:
return media::AudioLatency::LATENCY_RTC;
case AudioDeviceFactory::kSourceMediaElement:
case AudioDeviceFactory::kSourceWebAudioPlayback:
return media::AudioLatency::LATENCY_PLAYBACK;
case AudioDeviceFactory::kSourceWebAudioExact:
return media::AudioLatency::LATENCY_EXACT_MS;
}
NOTREACHED();
return media::AudioLatency::LATENCY_INTERACTIVE;
}
scoped_refptr<media::AudioRendererSink>
AudioDeviceFactory::NewAudioRendererMixerSink(int render_frame_id,
int session_id,
const std::string& device_id) {
return NewFinalAudioRendererSink(render_frame_id, session_id, device_id);
}
// static
scoped_refptr<media::AudioRendererSink>
AudioDeviceFactory::NewAudioRendererSink(SourceType source_type,
int render_frame_id,
int session_id,
const std::string& device_id) {
if (factory_) {
scoped_refptr<media::AudioRendererSink> device =
factory_->CreateAudioRendererSink(source_type, render_frame_id,
session_id, device_id);
if (device)
return device;
}
if (IsMixable(source_type))
return NewMixableSink(source_type, render_frame_id, session_id, device_id);
UMA_HISTOGRAM_BOOLEAN("Media.Audio.Render.SinkCache.UsedForSinkCreation",
false);
return NewFinalAudioRendererSink(render_frame_id, session_id, device_id);
}
// static
scoped_refptr<media::SwitchableAudioRendererSink>
AudioDeviceFactory::NewSwitchableAudioRendererSink(
SourceType source_type,
int render_frame_id,
int session_id,
const std::string& device_id) {
if (factory_) {
scoped_refptr<media::SwitchableAudioRendererSink> sink =
factory_->CreateSwitchableAudioRendererSink(
source_type, render_frame_id, session_id, device_id);
if (sink)
return sink;
}
if (IsMixable(source_type))
return NewMixableSink(source_type, render_frame_id, session_id, device_id);
// AudioOutputDevice is not RestartableAudioRendererSink, so we can't return
// anything for those who wants to create an unmixable sink.
NOTIMPLEMENTED();
return nullptr;
}
// static
scoped_refptr<media::AudioCapturerSource>
AudioDeviceFactory::NewAudioCapturerSource(int render_frame_id,
int session_id) {
if (factory_) {
// We don't pass on |session_id|, as this branch is only used for tests.
scoped_refptr<media::AudioCapturerSource> source =
factory_->CreateAudioCapturerSource(render_frame_id);
if (source)
return source;
}
return base::MakeRefCounted<media::AudioInputDevice>(
AudioInputIPCFactory::get()->CreateAudioInputIPC(render_frame_id,
session_id),
base::ThreadPriority::REALTIME_AUDIO);
}
// static
media::OutputDeviceInfo AudioDeviceFactory::GetOutputDeviceInfo(
int render_frame_id,
int session_id,
const std::string& device_id) {
RenderThreadImpl* render_thread = RenderThreadImpl::current();
DCHECK(render_thread) << "RenderThreadImpl is not instantiated, or "
<< "GetOutputDeviceInfo() is called on a wrong thread ";
return render_thread->GetAudioRendererMixerManager()->GetOutputDeviceInfo(
render_frame_id, session_id, device_id);
}
AudioDeviceFactory::AudioDeviceFactory() {
DCHECK(!factory_) << "Can't register two factories at once.";
factory_ = this;
}
AudioDeviceFactory::~AudioDeviceFactory() {
factory_ = nullptr;
}
// static
scoped_refptr<media::AudioRendererSink>
AudioDeviceFactory::NewFinalAudioRendererSink(int render_frame_id,
int session_id,
const std::string& device_id) {
if (factory_) {
scoped_refptr<media::AudioRendererSink> sink =
factory_->CreateFinalAudioRendererSink(render_frame_id, session_id,
device_id);
if (sink)
return sink;
}
return NewOutputDevice(render_frame_id, session_id, device_id);
}
} // namespace content
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