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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/media/audio_input_stream_broker.h"
#include <optional>
#include <utility>
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "content/browser/browser_main_loop.h"
#include "content/browser/media/audio_stream_broker_helper.h"
#include "content/browser/media/media_internals.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "media/audio/audio_logging.h"
#include "media/base/media_switches.h"
#include "media/mojo/mojom/audio_processing.mojom.h"
namespace content {
using DisconnectReason =
media::mojom::AudioInputStreamObserver::DisconnectReason;
using InputStreamErrorCode = media::mojom::InputStreamErrorCode;
AudioInputStreamBroker::AudioInputStreamBroker(
int render_process_id,
int render_frame_id,
const std::string& device_id,
const media::AudioParameters& params,
uint32_t shared_memory_count,
bool enable_agc,
media::mojom::AudioProcessingConfigPtr processing_config,
AudioStreamBroker::DeleterCallback deleter,
mojo::PendingRemote<blink::mojom::RendererAudioInputStreamFactoryClient>
renderer_factory_client)
: AudioStreamBroker(render_process_id, render_frame_id),
device_id_(device_id),
params_(params),
shared_memory_count_(shared_memory_count),
enable_agc_(enable_agc),
deleter_(std::move(deleter)),
processing_config_(std::move(processing_config)),
renderer_factory_client_(std::move(renderer_factory_client)) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK(renderer_factory_client_);
DCHECK(deleter_);
TRACE_EVENT_NESTABLE_ASYNC_BEGIN0("audio", "AudioInputStreamBroker", this);
// Unretained is safe because |this| owns |renderer_factory_client_|.
renderer_factory_client_.set_disconnect_handler(base::BindOnce(
&AudioInputStreamBroker::ClientBindingLost, base::Unretained(this)));
NotifyFrameHostOfAudioStreamStarted(render_process_id, render_frame_id,
/*is_capturing=*/true);
if (base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kUseFakeDeviceForMediaStream)) {
params_.set_format(media::AudioParameters::AUDIO_FAKE);
}
}
AudioInputStreamBroker::~AudioInputStreamBroker() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
NotifyFrameHostOfAudioStreamStopped(render_process_id(), render_frame_id(),
/*is_capturing=*/true);
// TODO(crbug.com/40091014) update tab recording indicator.
if (awaiting_created_) {
TRACE_EVENT_NESTABLE_ASYNC_END1("audio", "CreateStream", this, "success",
"failed or cancelled");
}
TRACE_EVENT_NESTABLE_ASYNC_END1("audio", "AudioInputStreamBroker", this,
"disconnect reason",
static_cast<uint32_t>(disconnect_reason_));
}
void AudioInputStreamBroker::CreateStream(
media::mojom::AudioStreamFactory* factory) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DCHECK(!observer_receiver_.is_bound());
DCHECK(!pending_client_receiver_);
TRACE_EVENT_NESTABLE_ASYNC_BEGIN1("audio", "CreateStream", this, "device id",
device_id_);
awaiting_created_ = true;
mojo::PendingRemote<media::mojom::AudioInputStreamClient> client;
pending_client_receiver_ = client.InitWithNewPipeAndPassReceiver();
mojo::PendingRemote<media::mojom::AudioInputStream> stream;
auto stream_receiver = stream.InitWithNewPipeAndPassReceiver();
mojo::PendingRemote<media::mojom::AudioInputStreamObserver> observer;
observer_receiver_.Bind(observer.InitWithNewPipeAndPassReceiver());
// Unretained is safe because |this| owns |observer_binding_|.
observer_receiver_.set_disconnect_with_reason_handler(base::BindOnce(
&AudioInputStreamBroker::ObserverBindingLost, base::Unretained(this)));
// Note that the component id for AudioLog is used to differentiate between
// several users of the same audio log. Since this audio log is for a single
// stream, the component id used doesn't matter.
// We can move |processing_config_| because this method is only called once.
constexpr int log_component_id = 0;
factory->CreateInputStream(
std::move(stream_receiver), std::move(client), std::move(observer),
MediaInternals::GetInstance()->CreateMojoAudioLog(
media::AudioLogFactory::AudioComponent::kAudioInputController,
log_component_id, render_process_id(), render_frame_id()),
device_id_, params_, shared_memory_count_, enable_agc_,
std::move(processing_config_),
base::BindOnce(&AudioInputStreamBroker::StreamCreated,
weak_ptr_factory_.GetWeakPtr(), std::move(stream)));
}
void AudioInputStreamBroker::DidStartRecording() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
// TODO(crbug.com/40091014) update tab recording indicator.
}
void AudioInputStreamBroker::StreamCreated(
mojo::PendingRemote<media::mojom::AudioInputStream> stream,
media::mojom::ReadWriteAudioDataPipePtr data_pipe,
bool initially_muted,
const std::optional<base::UnguessableToken>& stream_id) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
awaiting_created_ = false;
TRACE_EVENT_NESTABLE_ASYNC_END1("audio", "CreateStream", this, "success",
!!data_pipe);
if (!data_pipe) {
disconnect_reason_ = DisconnectReason::kStreamCreationFailed;
Cleanup();
return;
}
DCHECK(stream_id.has_value());
DCHECK(renderer_factory_client_);
renderer_factory_client_->StreamCreated(
std::move(stream), std::move(pending_client_receiver_),
std::move(data_pipe), initially_muted, stream_id);
}
InputStreamErrorCode MapDisconnectReasonToErrorCode(DisconnectReason reason) {
switch (static_cast<DisconnectReason>(reason)) {
case DisconnectReason::kSystemPermissions:
return InputStreamErrorCode::kSystemPermissions;
case DisconnectReason::kDeviceInUse:
return InputStreamErrorCode::kDeviceInUse;
case DisconnectReason::kDefault:
case DisconnectReason::kPlatformError:
case DisconnectReason::kTerminatedByClient:
case DisconnectReason::kStreamCreationFailed:
case DisconnectReason::kDocumentDestroyed:
break;
}
return InputStreamErrorCode::kUnknown;
}
void AudioInputStreamBroker::ObserverBindingLost(
uint32_t reason,
const std::string& description) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
DisconnectReason disconnection_reason = static_cast<DisconnectReason>(reason);
if (!media::mojom::IsKnownEnumValue(disconnection_reason)) {
DLOG(ERROR) << "Invalid reason: " << reason;
} else if (disconnect_reason_ == DisconnectReason::kDocumentDestroyed) {
disconnect_reason_ = disconnection_reason;
}
renderer_factory_client_.ResetWithReason(
static_cast<uint32_t>(
MapDisconnectReasonToErrorCode(disconnection_reason)),
description);
Cleanup();
}
void AudioInputStreamBroker::ClientBindingLost() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
disconnect_reason_ = DisconnectReason::kTerminatedByClient;
Cleanup();
}
void AudioInputStreamBroker::Cleanup() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
std::move(deleter_).Run(this);
}
} // namespace content
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