| // Copyright 2017 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/mojo_audio_input_ipc.h" |
| |
| #include <utility> |
| |
| #include "base/bind_helpers.h" |
| #include "media/audio/audio_device_description.h" |
| #include "mojo/public/cpp/system/platform_handle.h" |
| |
| namespace content { |
| |
| MojoAudioInputIPC::MojoAudioInputIPC(StreamCreatorCB stream_creator) |
| : stream_creator_(std::move(stream_creator)), |
| stream_client_binding_(this), |
| factory_client_binding_(this), |
| weak_factory_(this) { |
| DETACH_FROM_SEQUENCE(sequence_checker_); |
| DCHECK(stream_creator_); |
| } |
| |
| MojoAudioInputIPC::~MojoAudioInputIPC() = default; |
| |
| void MojoAudioInputIPC::CreateStream(media::AudioInputIPCDelegate* delegate, |
| int session_id, |
| 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; |
| |
| mojom::RendererAudioInputStreamFactoryClientPtr client; |
| factory_client_binding_.Bind(mojo::MakeRequest(&client)); |
| factory_client_binding_.set_connection_error_handler(base::BindOnce( |
| &media::AudioInputIPCDelegate::OnError, base::Unretained(delegate_))); |
| |
| stream_creator_.Run(std::move(client), session_id, 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::CloseStream() { |
| DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_); |
| delegate_ = nullptr; |
| if (factory_client_binding_.is_bound()) |
| factory_client_binding_.Unbind(); |
| if (stream_client_binding_.is_bound()) |
| stream_client_binding_.Unbind(); |
| stream_.reset(); |
| } |
| |
| void MojoAudioInputIPC::StreamCreated( |
| media::mojom::AudioInputStreamPtr stream, |
| media::mojom::AudioInputStreamClientRequest stream_client_request, |
| mojo::ScopedSharedBufferHandle shared_memory, |
| mojo::ScopedHandle socket, |
| bool initially_muted) { |
| DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_); |
| DCHECK(delegate_); |
| DCHECK(socket.is_valid()); |
| DCHECK(shared_memory.is_valid()); |
| DCHECK(!stream_); |
| DCHECK(!stream_client_binding_.is_bound()); |
| stream_ = std::move(stream); |
| stream_client_binding_.Bind(std::move(stream_client_request)); |
| |
| base::PlatformFile socket_handle; |
| auto result = mojo::UnwrapPlatformFile(std::move(socket), &socket_handle); |
| DCHECK_EQ(result, MOJO_RESULT_OK); |
| |
| base::SharedMemoryHandle memory_handle; |
| mojo::UnwrappedSharedMemoryHandleProtection protection; |
| result = mojo::UnwrapSharedMemoryHandle(std::move(shared_memory), |
| &memory_handle, nullptr, &protection); |
| DCHECK_EQ(result, MOJO_RESULT_OK); |
| DCHECK_EQ(protection, mojo::UnwrappedSharedMemoryHandleProtection::kReadOnly); |
| |
| delegate_->OnStreamCreated(memory_handle, socket_handle, initially_muted); |
| } |
| |
| void MojoAudioInputIPC::OnError() { |
| DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_); |
| DCHECK(delegate_); |
| delegate_->OnError(); |
| } |
| |
| void MojoAudioInputIPC::OnMutedStateChanged(bool is_muted) { |
| DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_); |
| DCHECK(delegate_); |
| delegate_->OnMuted(is_muted); |
| } |
| |
| } // namespace content |