Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #include "content/browser/renderer_host/media/audio_input_renderer_host.h" |
| 6 | |
| 7 | #include "base/bind.h" |
Ben Murdoch | 7dbb3d5 | 2013-07-17 14:55:54 +0100 | [diff] [blame] | 8 | #include "base/memory/shared_memory.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 9 | #include "base/metrics/histogram.h" |
Ben Murdoch | a3f7b4e | 2013-07-24 10:36:34 +0100 | [diff] [blame] | 10 | #include "base/process/process.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 11 | #include "content/browser/renderer_host/media/audio_input_device_manager.h" |
| 12 | #include "content/browser/renderer_host/media/audio_input_sync_writer.h" |
| 13 | #include "content/browser/renderer_host/media/media_stream_manager.h" |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 14 | #include "content/browser/renderer_host/media/web_contents_audio_input_stream.h" |
| 15 | #include "content/browser/renderer_host/media/web_contents_capture_util.h" |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 16 | #include "media/audio/audio_manager_base.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 17 | |
| 18 | namespace content { |
| 19 | |
| 20 | struct AudioInputRendererHost::AudioEntry { |
| 21 | AudioEntry(); |
| 22 | ~AudioEntry(); |
| 23 | |
| 24 | // The AudioInputController that manages the audio input stream. |
| 25 | scoped_refptr<media::AudioInputController> controller; |
| 26 | |
| 27 | // The audio input stream ID in the render view. |
| 28 | int stream_id; |
| 29 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 30 | // Shared memory for transmission of the audio data. It has |
| 31 | // |shared_memory_segment_count| equal lengthed segments. |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 32 | base::SharedMemory shared_memory; |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 33 | int shared_memory_segment_count; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 34 | |
| 35 | // The synchronous writer to be used by the controller. We have the |
| 36 | // ownership of the writer. |
| 37 | scoped_ptr<media::AudioInputController::SyncWriter> writer; |
| 38 | |
| 39 | // Set to true after we called Close() for the controller. |
| 40 | bool pending_close; |
| 41 | }; |
| 42 | |
| 43 | AudioInputRendererHost::AudioEntry::AudioEntry() |
| 44 | : stream_id(0), |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 45 | shared_memory_segment_count(0), |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 46 | pending_close(false) { |
| 47 | } |
| 48 | |
| 49 | AudioInputRendererHost::AudioEntry::~AudioEntry() {} |
| 50 | |
| 51 | AudioInputRendererHost::AudioInputRendererHost( |
| 52 | media::AudioManager* audio_manager, |
Ben Murdoch | eb525c5 | 2013-07-10 11:40:50 +0100 | [diff] [blame] | 53 | MediaStreamManager* media_stream_manager, |
| 54 | AudioMirroringManager* audio_mirroring_manager) |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 55 | : audio_manager_(audio_manager), |
Ben Murdoch | eb525c5 | 2013-07-10 11:40:50 +0100 | [diff] [blame] | 56 | media_stream_manager_(media_stream_manager), |
| 57 | audio_mirroring_manager_(audio_mirroring_manager) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | AudioInputRendererHost::~AudioInputRendererHost() { |
| 61 | DCHECK(audio_entries_.empty()); |
| 62 | } |
| 63 | |
| 64 | void AudioInputRendererHost::OnChannelClosing() { |
| 65 | BrowserMessageFilter::OnChannelClosing(); |
| 66 | |
| 67 | // Since the IPC channel is gone, close all requested audio streams. |
| 68 | DeleteEntries(); |
| 69 | } |
| 70 | |
| 71 | void AudioInputRendererHost::OnDestruct() const { |
| 72 | BrowserThread::DeleteOnIOThread::Destruct(this); |
| 73 | } |
| 74 | |
| 75 | void AudioInputRendererHost::OnCreated( |
| 76 | media::AudioInputController* controller) { |
| 77 | BrowserThread::PostTask( |
| 78 | BrowserThread::IO, |
| 79 | FROM_HERE, |
| 80 | base::Bind( |
| 81 | &AudioInputRendererHost::DoCompleteCreation, |
| 82 | this, |
| 83 | make_scoped_refptr(controller))); |
| 84 | } |
| 85 | |
| 86 | void AudioInputRendererHost::OnRecording( |
| 87 | media::AudioInputController* controller) { |
| 88 | BrowserThread::PostTask( |
| 89 | BrowserThread::IO, |
| 90 | FROM_HERE, |
| 91 | base::Bind( |
| 92 | &AudioInputRendererHost::DoSendRecordingMessage, |
| 93 | this, |
| 94 | make_scoped_refptr(controller))); |
| 95 | } |
| 96 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 97 | void AudioInputRendererHost::OnError(media::AudioInputController* controller) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 98 | BrowserThread::PostTask( |
| 99 | BrowserThread::IO, |
| 100 | FROM_HERE, |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 101 | base::Bind( |
| 102 | &AudioInputRendererHost::DoHandleError, |
| 103 | this, |
| 104 | make_scoped_refptr(controller))); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | void AudioInputRendererHost::OnData(media::AudioInputController* controller, |
| 108 | const uint8* data, |
| 109 | uint32 size) { |
| 110 | NOTREACHED() << "Only low-latency mode is supported."; |
| 111 | } |
| 112 | |
| 113 | void AudioInputRendererHost::DoCompleteCreation( |
| 114 | media::AudioInputController* controller) { |
| 115 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 116 | |
| 117 | AudioEntry* entry = LookupByController(controller); |
| 118 | if (!entry) |
| 119 | return; |
| 120 | |
Ben Murdoch | 7dbb3d5 | 2013-07-17 14:55:54 +0100 | [diff] [blame] | 121 | if (!PeerHandle()) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 122 | NOTREACHED() << "Renderer process handle is invalid."; |
| 123 | DeleteEntryOnError(entry); |
| 124 | return; |
| 125 | } |
| 126 | |
| 127 | if (!entry->controller->LowLatencyMode()) { |
| 128 | NOTREACHED() << "Only low-latency mode is supported."; |
| 129 | DeleteEntryOnError(entry); |
| 130 | return; |
| 131 | } |
| 132 | |
| 133 | // Once the audio stream is created then complete the creation process by |
| 134 | // mapping shared memory and sharing with the renderer process. |
| 135 | base::SharedMemoryHandle foreign_memory_handle; |
Ben Murdoch | 7dbb3d5 | 2013-07-17 14:55:54 +0100 | [diff] [blame] | 136 | if (!entry->shared_memory.ShareToProcess(PeerHandle(), |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 137 | &foreign_memory_handle)) { |
| 138 | // If we failed to map and share the shared memory then close the audio |
| 139 | // stream and send an error message. |
| 140 | DeleteEntryOnError(entry); |
| 141 | return; |
| 142 | } |
| 143 | |
| 144 | AudioInputSyncWriter* writer = |
| 145 | static_cast<AudioInputSyncWriter*>(entry->writer.get()); |
| 146 | |
| 147 | #if defined(OS_WIN) |
| 148 | base::SyncSocket::Handle foreign_socket_handle; |
| 149 | #else |
| 150 | base::FileDescriptor foreign_socket_handle; |
| 151 | #endif |
| 152 | |
| 153 | // If we failed to prepare the sync socket for the renderer then we fail |
| 154 | // the construction of audio input stream. |
Ben Murdoch | 7dbb3d5 | 2013-07-17 14:55:54 +0100 | [diff] [blame] | 155 | if (!writer->PrepareForeignSocketHandle(PeerHandle(), |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 156 | &foreign_socket_handle)) { |
| 157 | DeleteEntryOnError(entry); |
| 158 | return; |
| 159 | } |
| 160 | |
| 161 | Send(new AudioInputMsg_NotifyStreamCreated(entry->stream_id, |
| 162 | foreign_memory_handle, foreign_socket_handle, |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 163 | entry->shared_memory.requested_size(), |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 164 | entry->shared_memory_segment_count)); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 165 | } |
| 166 | |
| 167 | void AudioInputRendererHost::DoSendRecordingMessage( |
| 168 | media::AudioInputController* controller) { |
| 169 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 170 | // TODO(henrika): See crbug.com/115262 for details on why this method |
| 171 | // should be implemented. |
| 172 | } |
| 173 | |
| 174 | void AudioInputRendererHost::DoHandleError( |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 175 | media::AudioInputController* controller) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 176 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 177 | |
| 178 | AudioEntry* entry = LookupByController(controller); |
| 179 | if (!entry) |
| 180 | return; |
| 181 | |
| 182 | DeleteEntryOnError(entry); |
| 183 | } |
| 184 | |
| 185 | bool AudioInputRendererHost::OnMessageReceived(const IPC::Message& message, |
| 186 | bool* message_was_ok) { |
| 187 | bool handled = true; |
| 188 | IPC_BEGIN_MESSAGE_MAP_EX(AudioInputRendererHost, message, *message_was_ok) |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 189 | IPC_MESSAGE_HANDLER(AudioInputHostMsg_CreateStream, OnCreateStream) |
| 190 | IPC_MESSAGE_HANDLER(AudioInputHostMsg_RecordStream, OnRecordStream) |
| 191 | IPC_MESSAGE_HANDLER(AudioInputHostMsg_CloseStream, OnCloseStream) |
| 192 | IPC_MESSAGE_HANDLER(AudioInputHostMsg_SetVolume, OnSetVolume) |
| 193 | IPC_MESSAGE_UNHANDLED(handled = false) |
| 194 | IPC_END_MESSAGE_MAP_EX() |
| 195 | |
| 196 | return handled; |
| 197 | } |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 198 | |
| 199 | void AudioInputRendererHost::OnCreateStream( |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 200 | int stream_id, |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 201 | int render_view_id, |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 202 | int session_id, |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 203 | const AudioInputHostMsg_CreateStream_Config& config) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 204 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 205 | |
| 206 | DVLOG(1) << "AudioInputRendererHost@" << this |
| 207 | << "::OnCreateStream(stream_id=" << stream_id |
| 208 | << ", render_view_id=" << render_view_id |
| 209 | << ", session_id=" << session_id << ")"; |
| 210 | DCHECK_GT(render_view_id, 0); |
| 211 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 212 | // media::AudioParameters is validated in the deserializer. |
| 213 | if (LookupById(stream_id) != NULL) { |
| 214 | SendErrorMessage(stream_id); |
| 215 | return; |
| 216 | } |
| 217 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 218 | media::AudioParameters audio_params(config.params); |
| 219 | if (media_stream_manager_->audio_input_device_manager()-> |
| 220 | ShouldUseFakeDevice()) { |
| 221 | audio_params.Reset( |
| 222 | media::AudioParameters::AUDIO_FAKE, |
| 223 | config.params.channel_layout(), config.params.channels(), 0, |
| 224 | config.params.sample_rate(), config.params.bits_per_sample(), |
| 225 | config.params.frames_per_buffer()); |
| 226 | } |
| 227 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 228 | // Check if we have the permission to open the device and which device to use. |
| 229 | std::string device_id = media::AudioManagerBase::kDefaultDeviceId; |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 230 | if (audio_params.format() != media::AudioParameters::AUDIO_FAKE) { |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 231 | const StreamDeviceInfo* info = media_stream_manager_-> |
| 232 | audio_input_device_manager()->GetOpenedDeviceInfoById(session_id); |
| 233 | if (!info) { |
| 234 | SendErrorMessage(stream_id); |
| 235 | DLOG(WARNING) << "No permission has been granted to input stream with " |
| 236 | << "session_id=" << session_id; |
| 237 | return; |
| 238 | } |
| 239 | |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 240 | device_id = info->device.id; |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 241 | } |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 242 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 243 | // Create a new AudioEntry structure. |
| 244 | scoped_ptr<AudioEntry> entry(new AudioEntry()); |
| 245 | |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 246 | const uint32 segment_size = (sizeof(media::AudioInputBufferParameters) + |
| 247 | audio_params.GetBytesPerBuffer()); |
| 248 | entry->shared_memory_segment_count = config.shared_memory_count; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 249 | |
| 250 | // Create the shared memory and share it with the renderer process |
| 251 | // using a new SyncWriter object. |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 252 | if (!entry->shared_memory.CreateAndMapAnonymous( |
| 253 | segment_size * entry->shared_memory_segment_count)) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 254 | // If creation of shared memory failed then send an error message. |
| 255 | SendErrorMessage(stream_id); |
| 256 | return; |
| 257 | } |
| 258 | |
| 259 | scoped_ptr<AudioInputSyncWriter> writer( |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 260 | new AudioInputSyncWriter(&entry->shared_memory, |
| 261 | entry->shared_memory_segment_count)); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 262 | |
| 263 | if (!writer->Init()) { |
| 264 | SendErrorMessage(stream_id); |
| 265 | return; |
| 266 | } |
| 267 | |
| 268 | // If we have successfully created the SyncWriter then assign it to the |
| 269 | // entry and construct an AudioInputController. |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 270 | entry->writer.reset(writer.release()); |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 271 | if (WebContentsCaptureUtil::IsWebContentsDeviceId(device_id)) { |
| 272 | entry->controller = media::AudioInputController::CreateForStream( |
Ben Murdoch | eb525c5 | 2013-07-10 11:40:50 +0100 | [diff] [blame] | 273 | audio_manager_->GetMessageLoop(), |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 274 | this, |
| 275 | WebContentsAudioInputStream::Create( |
Ben Murdoch | eb525c5 | 2013-07-10 11:40:50 +0100 | [diff] [blame] | 276 | device_id, audio_params, audio_manager_->GetWorkerLoop(), |
| 277 | audio_mirroring_manager_), |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 278 | entry->writer.get()); |
| 279 | } else { |
| 280 | // TODO(henrika): replace CreateLowLatency() with Create() as soon |
| 281 | // as satish has ensured that Speech Input also uses the default low- |
| 282 | // latency path. See crbug.com/112472 for details. |
| 283 | entry->controller = media::AudioInputController::CreateLowLatency( |
| 284 | audio_manager_, |
| 285 | this, |
| 286 | audio_params, |
| 287 | device_id, |
| 288 | entry->writer.get()); |
| 289 | } |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 290 | |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 291 | if (!entry->controller.get()) { |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 292 | SendErrorMessage(stream_id); |
| 293 | return; |
| 294 | } |
| 295 | |
| 296 | // Set the initial AGC state for the audio input stream. Note that, the AGC |
| 297 | // is only supported in AUDIO_PCM_LOW_LATENCY mode. |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 298 | if (config.params.format() == media::AudioParameters::AUDIO_PCM_LOW_LATENCY) |
| 299 | entry->controller->SetAutomaticGainControl(config.automatic_gain_control); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 300 | |
Torne (Richard Coles) | c2e0dbd | 2013-05-09 18:35:53 +0100 | [diff] [blame] | 301 | // Since the controller was created successfully, create an entry and add it |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 302 | // to the map. |
| 303 | entry->stream_id = stream_id; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 304 | audio_entries_.insert(std::make_pair(stream_id, entry.release())); |
| 305 | } |
| 306 | |
| 307 | void AudioInputRendererHost::OnRecordStream(int stream_id) { |
| 308 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 309 | |
| 310 | AudioEntry* entry = LookupById(stream_id); |
| 311 | if (!entry) { |
| 312 | SendErrorMessage(stream_id); |
| 313 | return; |
| 314 | } |
| 315 | |
| 316 | entry->controller->Record(); |
| 317 | } |
| 318 | |
| 319 | void AudioInputRendererHost::OnCloseStream(int stream_id) { |
| 320 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 321 | |
| 322 | AudioEntry* entry = LookupById(stream_id); |
| 323 | |
| 324 | if (entry) |
| 325 | CloseAndDeleteStream(entry); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 326 | } |
| 327 | |
| 328 | void AudioInputRendererHost::OnSetVolume(int stream_id, double volume) { |
| 329 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 330 | |
| 331 | AudioEntry* entry = LookupById(stream_id); |
| 332 | if (!entry) { |
| 333 | SendErrorMessage(stream_id); |
| 334 | return; |
| 335 | } |
| 336 | |
| 337 | entry->controller->SetVolume(volume); |
| 338 | } |
| 339 | |
| 340 | void AudioInputRendererHost::SendErrorMessage(int stream_id) { |
| 341 | Send(new AudioInputMsg_NotifyStreamStateChanged( |
| 342 | stream_id, media::AudioInputIPCDelegate::kError)); |
| 343 | } |
| 344 | |
| 345 | void AudioInputRendererHost::DeleteEntries() { |
| 346 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 347 | |
| 348 | for (AudioEntryMap::iterator i = audio_entries_.begin(); |
| 349 | i != audio_entries_.end(); ++i) { |
| 350 | CloseAndDeleteStream(i->second); |
| 351 | } |
| 352 | } |
| 353 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 354 | void AudioInputRendererHost::CloseAndDeleteStream(AudioEntry* entry) { |
| 355 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 356 | |
| 357 | if (!entry->pending_close) { |
| 358 | entry->controller->Close(base::Bind(&AudioInputRendererHost::DeleteEntry, |
| 359 | this, entry)); |
| 360 | entry->pending_close = true; |
| 361 | } |
| 362 | } |
| 363 | |
| 364 | void AudioInputRendererHost::DeleteEntry(AudioEntry* entry) { |
| 365 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 366 | |
| 367 | // Delete the entry when this method goes out of scope. |
| 368 | scoped_ptr<AudioEntry> entry_deleter(entry); |
| 369 | |
| 370 | // Erase the entry from the map. |
| 371 | audio_entries_.erase(entry->stream_id); |
| 372 | } |
| 373 | |
| 374 | void AudioInputRendererHost::DeleteEntryOnError(AudioEntry* entry) { |
| 375 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 376 | |
| 377 | // Sends the error message first before we close the stream because |
| 378 | // |entry| is destroyed in DeleteEntry(). |
| 379 | SendErrorMessage(entry->stream_id); |
| 380 | CloseAndDeleteStream(entry); |
| 381 | } |
| 382 | |
| 383 | AudioInputRendererHost::AudioEntry* AudioInputRendererHost::LookupById( |
| 384 | int stream_id) { |
| 385 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 386 | |
| 387 | AudioEntryMap::iterator i = audio_entries_.find(stream_id); |
| 388 | if (i != audio_entries_.end()) |
| 389 | return i->second; |
| 390 | return NULL; |
| 391 | } |
| 392 | |
| 393 | AudioInputRendererHost::AudioEntry* AudioInputRendererHost::LookupByController( |
| 394 | media::AudioInputController* controller) { |
| 395 | DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 396 | |
| 397 | // Iterate the map of entries. |
| 398 | // TODO(hclam): Implement a faster look up method. |
| 399 | for (AudioEntryMap::iterator i = audio_entries_.begin(); |
| 400 | i != audio_entries_.end(); ++i) { |
Torne (Richard Coles) | 868fa2f | 2013-06-11 10:57:03 +0100 | [diff] [blame] | 401 | if (controller == i->second->controller.get()) |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 402 | return i->second; |
| 403 | } |
| 404 | return NULL; |
| 405 | } |
| 406 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 407 | } // namespace content |