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" 1758537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "ppapi/shared_impl/ppb_audio_config_shared.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 22558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochPepperPlatformAudioOutput* PepperPlatformAudioOutput::Create( 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int sample_rate, 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int frames_per_buffer, 252a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int source_render_view_id, 265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) int source_render_frame_id, 27558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch AudioHelper* client) { 28558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch scoped_refptr<PepperPlatformAudioOutput> audio_output( 29558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch new PepperPlatformAudioOutput()); 30a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch if (audio_output->Initialize(sample_rate, 31a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch frames_per_buffer, 32a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch source_render_view_id, 33a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch source_render_frame_id, 345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) client)) { 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Balanced by Release invoked in 36558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch // PepperPlatformAudioOutput::ShutDownOnIOThread(). 372a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) audio_output->AddRef(); 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return audio_output.get(); 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return NULL; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 43558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochbool PepperPlatformAudioOutput::StartPlayback() { 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ipc_) { 45eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 47558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::StartPlaybackOnIOThread, this)); 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 53558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochbool PepperPlatformAudioOutput::StopPlayback() { 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ipc_) { 55eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 57558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::StopPlaybackOnIOThread, this)); 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return false; 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 63558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::ShutDown() { 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Called on the main thread to stop all audio callbacks. We must only change 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the client on the main thread, and the delegates from the I/O thread. 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) client_ = NULL; 67eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 69558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdoch base::Bind(&PepperPlatformAudioOutput::ShutDownOnIOThread, this)); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 72558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::OnStateChanged( 73a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch media::AudioOutputIPCDelegate::State state) {} 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::OnStreamCreated( 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SharedMemoryHandle handle, 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::SyncSocket::Handle socket_handle, 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int length) { 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(handle); 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(socket_handle); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_NE(-1, handle.fd); 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_NE(-1, socket_handle); 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(length); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 88eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch if (base::MessageLoopProxy::current().get() == 89a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch main_message_loop_proxy_.get()) { 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Must dereference the client only on the main thread. Shutdown may have 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // occurred while the request was in-flight, so we need to NULL check. 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (client_) 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) client_->StreamCreated(handle, length, socket_handle); 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 95a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch main_message_loop_proxy_->PostTask( 96a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch FROM_HERE, 97a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch base::Bind(&PepperPlatformAudioOutput::OnStreamCreated, 98a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch this, 99a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch handle, 100a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch socket_handle, 101a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch length)); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105a02191e04bc25c4935f804f2c080ae28663d096dBen Murdochvoid PepperPlatformAudioOutput::OnIPCClosed() { ipc_.reset(); } 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 107558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochPepperPlatformAudioOutput::~PepperPlatformAudioOutput() { 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make sure we have been shut down. Warning: this will usually happen on 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the I/O thread! 110c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) DCHECK(!ipc_); 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!client_); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 114558790d6acca3451cf3a6b497803a5f07d0bec58Ben MurdochPepperPlatformAudioOutput::PepperPlatformAudioOutput() 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : client_(NULL), 116eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch main_message_loop_proxy_(base::MessageLoopProxy::current()), 117eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_(ChildProcess::current()->io_message_loop_proxy()) { 118eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch} 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 120a02191e04bc25c4935f804f2c080ae28663d096dBen Murdochbool PepperPlatformAudioOutput::Initialize(int sample_rate, 121a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch int frames_per_buffer, 122a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch int source_render_view_id, 123a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch int source_render_frame_id, 124a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch AudioHelper* client) { 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(client); 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) client_ = client; 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 128c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) RenderThreadImpl* const render_thread = RenderThreadImpl::current(); 129a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch ipc_ = render_thread->audio_message_filter()->CreateAudioOutputIPC( 130a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch source_render_view_id, source_render_frame_id); 131c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) CHECK(ipc_); 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 133a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch media::AudioParameters params(media::AudioParameters::AUDIO_PCM_LOW_LATENCY, 134a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch media::CHANNEL_LAYOUT_STEREO, 135a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch sample_rate, 136a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch ppapi::kBitsPerAudioOutputSample, 137a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch frames_per_buffer); 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 139eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch io_message_loop_proxy_->PostTask( 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 141a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch base::Bind( 142a02191e04bc25c4935f804f2c080ae28663d096dBen Murdoch &PepperPlatformAudioOutput::InitializeOnIOThread, this, params)); 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return true; 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 146558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::InitializeOnIOThread( 147c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) const media::AudioParameters& params) { 148eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 149868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) const int kSessionId = 0; 150c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (ipc_) 151868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) ipc_->CreateStream(this, params, kSessionId); 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 154558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::StartPlaybackOnIOThread() { 155eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 156c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (ipc_) 157c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_->PlayStream(); 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 160558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::StopPlaybackOnIOThread() { 161eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 162c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (ipc_) 163c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_->PauseStream(); 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 166558790d6acca3451cf3a6b497803a5f07d0bec58Ben Murdochvoid PepperPlatformAudioOutput::ShutDownOnIOThread() { 167eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch DCHECK(io_message_loop_proxy_->BelongsToCurrentThread()); 168c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Make sure we don't call shutdown more than once. 170c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) if (!ipc_) 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 173c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_->CloseStream(); 174c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) ipc_.reset(); 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Release(); // Release for the delegate, balances out the reference taken in 1773240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch // PepperPlatformAudioOutput::Create. 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 181