15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 5558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "content/renderer/pepper/pepper_platform_audio_output.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 9868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "base/message_loop/message_loop_proxy.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "build/build_config.h" 11868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles)#include "content/child/child_process.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/common/media/audio_messages.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/renderer/media/audio_message_filter.h" 14558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch#include "content/renderer/pepper/audio_helper.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/renderer/render_thread_impl.h" 162a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "media/base/audio_hardware_config.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 21558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochPepperPlatformAudioOutput* PepperPlatformAudioOutput::Create( 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int sample_rate, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int frames_per_buffer, 242a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int source_render_view_id, 25558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch AudioHelper* client) { 26558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch scoped_refptr<PepperPlatformAudioOutput> audio_output( 27558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch new PepperPlatformAudioOutput()); 282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) if (audio_output->Initialize(sample_rate, frames_per_buffer, 292a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) source_render_view_id, client)) { 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Balanced by Release invoked in 31558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // PepperPlatformAudioOutput::ShutDownOnIOThread(). 322a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) audio_output->AddRef(); 332a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return audio_output.get(); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 38558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochbool PepperPlatformAudioOutput::StartPlayback() { 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ipc_) { 40eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 42558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::StartPlaybackOnIOThread, this)); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 48558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochbool PepperPlatformAudioOutput::StopPlayback() { 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ipc_) { 50eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 52558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::StopPlaybackOnIOThread, this)); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 58558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::ShutDown() { 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Called on the main thread to stop all audio callbacks. We must only change 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the client on the main thread, and the delegates from the I/O thread. 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) client_ = NULL; 62eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 64558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::ShutDownOnIOThread, this)); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 67558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::OnStateChanged( 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) media::AudioOutputIPCDelegate::State state) { 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 71558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::OnStreamCreated( 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SharedMemoryHandle handle, 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SyncSocket::Handle socket_handle, 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int length) { 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(handle); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(socket_handle); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_NE(-1, handle.fd); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_NE(-1, socket_handle); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(length); 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 84eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch if (base::MessageLoopProxy::current().get() == 85eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch main_message_loop_proxy_.get()) { 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Must dereference the client only on the main thread. Shutdown may have 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // occurred while the request was in-flight, so we need to NULL check. 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (client_) 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) client_->StreamCreated(handle, length, socket_handle); 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) main_message_loop_proxy_->PostTask(FROM_HERE, 92558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::OnStreamCreated, this, handle, 93558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch socket_handle, length)); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 97558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::OnIPCClosed() { 98c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_.reset(); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 101558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochPepperPlatformAudioOutput::~PepperPlatformAudioOutput() { 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make sure we have been shut down. Warning: this will usually happen on 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the I/O thread! 104c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(!ipc_); 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!client_); 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 108558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochPepperPlatformAudioOutput::PepperPlatformAudioOutput() 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : client_(NULL), 110eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch main_message_loop_proxy_(base::MessageLoopProxy::current()), 111eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_(ChildProcess::current()->io_message_loop_proxy()) { 112eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch} 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 114558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochbool PepperPlatformAudioOutput::Initialize( 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int sample_rate, 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int frames_per_buffer, 1172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int source_render_view_id, 118558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch AudioHelper* client) { 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(client); 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) client_ = client; 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 122c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) RenderThreadImpl* const render_thread = RenderThreadImpl::current(); 123c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_ = render_thread->audio_message_filter()-> 124c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) CreateAudioOutputIPC(source_render_view_id); 125c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) CHECK(ipc_); 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 127c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) media::AudioParameters params( 128c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) media::AudioParameters::AUDIO_PCM_LOW_LATENCY, 129c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) media::CHANNEL_LAYOUT_STEREO, sample_rate, 16, frames_per_buffer); 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 131eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 133558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::InitializeOnIOThread, this, 134558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch params)); 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 138558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::InitializeOnIOThread( 139c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const media::AudioParameters& params) { 140eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 141868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const int kSessionId = 0; 142c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (ipc_) 143868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ipc_->CreateStream(this, params, kSessionId); 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 146558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::StartPlaybackOnIOThread() { 147eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 148c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (ipc_) 149c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_->PlayStream(); 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 152558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::StopPlaybackOnIOThread() { 153eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 154c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (ipc_) 155c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_->PauseStream(); 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 158558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::ShutDownOnIOThread() { 159eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 160c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make sure we don't call shutdown more than once. 162c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!ipc_) 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_->CloseStream(); 166c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_.reset(); 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Release(); // Release for the delegate, balances out the reference taken in 1693240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch // PepperPlatformAudioOutput::Create. 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 173