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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/media/audio/mojo_audio_input_ipc.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/metrics/histogram_macros.h"
#include "media/audio/audio_device_description.h"
#include "media/mojo/common/input_error_code_converter.h"
#include "media/mojo/mojom/audio_data_pipe.mojom-blink.h"
#include "mojo/public/cpp/system/platform_handle.h"
namespace blink {
MojoAudioInputIPC::MojoAudioInputIPC(
const media::AudioSourceParameters& source_params,
StreamCreatorCB stream_creator,
StreamAssociatorCB stream_associator)
: source_params_(source_params),
stream_creator_(std::move(stream_creator)),
stream_associator_(std::move(stream_associator)) {
DETACH_FROM_SEQUENCE(sequence_checker_);
DCHECK(stream_creator_);
DCHECK(stream_associator_);
}
MojoAudioInputIPC::~MojoAudioInputIPC() = default;
void MojoAudioInputIPC::CreateStream(media::AudioInputIPCDelegate* delegate,
const media::AudioParameters& params,
bool automatic_gain_control,
uint32_t total_segments) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(delegate);
DCHECK(!delegate_);
delegate_ = delegate;
mojo::PendingRemote<mojom::blink::RendererAudioInputStreamFactoryClient>
client;
factory_client_receiver_.Bind(client.InitWithNewPipeAndPassReceiver());
factory_client_receiver_.set_disconnect_with_reason_handler(
base::BindOnce(&MojoAudioInputIPC::OnDisconnect, base::Unretained(this)));
mojo::PendingReceiver<media::mojom::blink::AudioProcessorControls>
controls_receiver;
if (source_params_.processing.has_value())
controls_receiver = processor_controls_.BindNewPipeAndPassReceiver();
stream_creator_.Run(source_params_, std::move(client),
std::move(controls_receiver), params,
automatic_gain_control, total_segments);
}
void MojoAudioInputIPC::RecordStream() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(stream_.is_bound());
stream_->Record();
}
void MojoAudioInputIPC::SetVolume(double volume) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(stream_.is_bound());
stream_->SetVolume(volume);
}
void MojoAudioInputIPC::SetOutputDeviceForAec(
const std::string& output_device_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(stream_) << "Can only be called after the stream has been created";
// Loopback streams have no stream ids and cannot be use echo cancellation
if (stream_id_.has_value())
stream_associator_.Run(*stream_id_, output_device_id);
}
media::AudioProcessorControls* MojoAudioInputIPC::GetProcessorControls() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return this;
}
void MojoAudioInputIPC::CloseStream() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
delegate_ = nullptr;
factory_client_receiver_.reset();
stream_client_receiver_.reset();
stream_.reset();
processor_controls_.reset();
}
void MojoAudioInputIPC::GetStats(GetStatsCB callback) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (processor_controls_)
processor_controls_->GetStats(std::move(callback));
}
void MojoAudioInputIPC::SetPreferredNumCaptureChannels(
int32_t num_preferred_channels) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (processor_controls_)
processor_controls_->SetPreferredNumCaptureChannels(num_preferred_channels);
}
void MojoAudioInputIPC::StreamCreated(
mojo::PendingRemote<media::mojom::blink::AudioInputStream> stream,
mojo::PendingReceiver<media::mojom::blink::AudioInputStreamClient>
stream_client_receiver,
media::mojom::blink::ReadWriteAudioDataPipePtr data_pipe,
bool initially_muted,
const std::optional<base::UnguessableToken>& stream_id) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(delegate_);
DCHECK(!stream_);
DCHECK(!stream_client_receiver_.is_bound());
stream_.Bind(std::move(stream));
stream_client_receiver_.Bind(std::move(stream_client_receiver));
// Keep the stream_id, if we get one. Regular input stream have stream ids,
// but Loopback streams do not.
stream_id_ = stream_id;
DCHECK(data_pipe->socket.is_valid_platform_file());
base::ScopedPlatformFile socket_handle = data_pipe->socket.TakePlatformFile();
base::UnsafeSharedMemoryRegion& shared_memory_region =
data_pipe->shared_memory;
DCHECK(shared_memory_region.IsValid());
delegate_->OnStreamCreated(std::move(shared_memory_region),
std::move(socket_handle), initially_muted);
}
void MojoAudioInputIPC::OnDisconnect(uint32_t error,
const std::string& reason) {
this->OnError(static_cast<media::mojom::InputStreamErrorCode>(error));
}
void MojoAudioInputIPC::OnError(media::mojom::InputStreamErrorCode code) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(delegate_);
delegate_->OnError(media::ConvertToCaptureCallbackCode(code));
}
void MojoAudioInputIPC::OnMutedStateChanged(bool is_muted) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(delegate_);
delegate_->OnMuted(is_muted);
}
} // namespace blink
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