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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/renderer_host/media/audio_renderer_host.h" | 5 #include "content/browser/renderer_host/media/audio_renderer_host.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/metrics/histogram.h" | 8 #include "base/metrics/histogram.h" |
9 #include "base/process.h" | 9 #include "base/process.h" |
10 #include "base/shared_memory.h" | 10 #include "base/shared_memory.h" |
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194 | 194 |
195 return handled; | 195 return handled; |
196 } | 196 } |
197 | 197 |
198 void AudioRendererHost::OnCreateStream( | 198 void AudioRendererHost::OnCreateStream( |
199 int stream_id, const AudioParameters& params) { | 199 int stream_id, const AudioParameters& params) { |
200 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | 200 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
201 DCHECK(LookupById(stream_id) == NULL); | 201 DCHECK(LookupById(stream_id) == NULL); |
202 | 202 |
203 AudioParameters audio_params(params); | 203 AudioParameters audio_params(params); |
204 DCHECK_GT(audio_params.samples_per_packet, 0); | 204 DCHECK_GT(audio_params.frames_per_buffer(), 0); |
205 | 205 |
206 uint32 packet_size = audio_params.GetPacketSize(); | 206 uint32 buffer_size = audio_params.GetBytesPerBuffer(); |
207 | 207 |
208 scoped_ptr<AudioEntry> entry(new AudioEntry()); | 208 scoped_ptr<AudioEntry> entry(new AudioEntry()); |
209 | 209 |
210 // Create the shared memory and share with the renderer process. | 210 // Create the shared memory and share with the renderer process. |
211 uint32 shared_memory_size = | 211 uint32 shared_memory_size = |
212 media::TotalSharedMemorySizeInBytes(packet_size); | 212 media::TotalSharedMemorySizeInBytes(buffer_size); |
213 if (!entry->shared_memory.CreateAndMapAnonymous(shared_memory_size)) { | 213 if (!entry->shared_memory.CreateAndMapAnonymous(shared_memory_size)) { |
214 // If creation of shared memory failed then send an error message. | 214 // If creation of shared memory failed then send an error message. |
215 SendErrorMessage(stream_id); | 215 SendErrorMessage(stream_id); |
216 return; | 216 return; |
217 } | 217 } |
218 | 218 |
219 // Create sync reader and try to initialize it. | 219 // Create sync reader and try to initialize it. |
220 scoped_ptr<AudioSyncReader> reader( | 220 scoped_ptr<AudioSyncReader> reader( |
221 new AudioSyncReader(&entry->shared_memory)); | 221 new AudioSyncReader(&entry->shared_memory)); |
222 | 222 |
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394 } | 394 } |
395 return NULL; | 395 return NULL; |
396 } | 396 } |
397 | 397 |
398 content::MediaObserver* AudioRendererHost::GetMediaObserver() { | 398 content::MediaObserver* AudioRendererHost::GetMediaObserver() { |
399 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | 399 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
400 if (resource_context_) | 400 if (resource_context_) |
401 return resource_context_->GetMediaObserver(); | 401 return resource_context_->GetMediaObserver(); |
402 return NULL; | 402 return NULL; |
403 } | 403 } |
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