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Side by Side Diff: content/renderer/media/audio_device.cc

Issue 9805001: Move media/audio files into media namespace (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Fix various compiler errors Created 8 years, 9 months ago
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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/renderer/media/audio_device.h" 5 #include "content/renderer/media/audio_device.h"
6 6
7 #include "base/debug/trace_event.h" 7 #include "base/debug/trace_event.h"
8 #include "base/message_loop.h" 8 #include "base/message_loop.h"
9 #include "base/threading/thread_restrictions.h" 9 #include "base/threading/thread_restrictions.h"
10 #include "base/time.h" 10 #include "base/time.h"
11 #include "content/common/child_process.h" 11 #include "content/common/child_process.h"
12 #include "content/common/media/audio_messages.h" 12 #include "content/common/media/audio_messages.h"
13 #include "content/common/view_messages.h" 13 #include "content/common/view_messages.h"
14 #include "content/renderer/render_thread_impl.h" 14 #include "content/renderer/render_thread_impl.h"
15 #include "media/audio/audio_output_controller.h" 15 #include "media/audio/audio_output_controller.h"
16 #include "media/audio/audio_util.h" 16 #include "media/audio/audio_util.h"
17 17
18 using media::AudioRendererSink; 18 using media::AudioRendererSink;
19 19
20 // Takes care of invoking the render callback on the audio thread. 20 // Takes care of invoking the render callback on the audio thread.
21 // An instance of this class is created for each capture stream in 21 // An instance of this class is created for each capture stream in
22 // OnStreamCreated(). 22 // OnStreamCreated().
23 class AudioDevice::AudioThreadCallback 23 class AudioDevice::AudioThreadCallback
24 : public AudioDeviceThread::Callback { 24 : public AudioDeviceThread::Callback {
25 public: 25 public:
26 AudioThreadCallback(const AudioParameters& audio_parameters, 26 AudioThreadCallback(const media::AudioParameters& audio_parameters,
27 base::SharedMemoryHandle memory, 27 base::SharedMemoryHandle memory,
28 int memory_length, 28 int memory_length,
29 AudioRendererSink::RenderCallback* render_callback); 29 AudioRendererSink::RenderCallback* render_callback);
30 virtual ~AudioThreadCallback(); 30 virtual ~AudioThreadCallback();
31 31
32 virtual void MapSharedMemory() OVERRIDE; 32 virtual void MapSharedMemory() OVERRIDE;
33 33
34 // Called whenever we receive notifications about pending data. 34 // Called whenever we receive notifications about pending data.
35 virtual void Process(int pending_data) OVERRIDE; 35 virtual void Process(int pending_data) OVERRIDE;
36 36
37 private: 37 private:
38 AudioRendererSink::RenderCallback* render_callback_; 38 AudioRendererSink::RenderCallback* render_callback_;
39 DISALLOW_COPY_AND_ASSIGN(AudioThreadCallback); 39 DISALLOW_COPY_AND_ASSIGN(AudioThreadCallback);
40 }; 40 };
41 41
42 AudioDevice::AudioDevice() 42 AudioDevice::AudioDevice()
43 : ScopedLoopObserver(ChildProcess::current()->io_message_loop()), 43 : ScopedLoopObserver(ChildProcess::current()->io_message_loop()),
44 callback_(NULL), 44 callback_(NULL),
45 volume_(1.0), 45 volume_(1.0),
46 stream_id_(0), 46 stream_id_(0),
47 play_on_start_(true), 47 play_on_start_(true),
48 is_started_(false) { 48 is_started_(false) {
49 filter_ = RenderThreadImpl::current()->audio_message_filter(); 49 filter_ = RenderThreadImpl::current()->audio_message_filter();
50 } 50 }
51 51
52 AudioDevice::AudioDevice(const AudioParameters& params, 52 AudioDevice::AudioDevice(const media::AudioParameters& params,
53 RenderCallback* callback) 53 RenderCallback* callback)
54 : ScopedLoopObserver(ChildProcess::current()->io_message_loop()), 54 : ScopedLoopObserver(ChildProcess::current()->io_message_loop()),
55 audio_parameters_(params), 55 audio_parameters_(params),
56 callback_(callback), 56 callback_(callback),
57 volume_(1.0), 57 volume_(1.0),
58 stream_id_(0), 58 stream_id_(0),
59 play_on_start_(true), 59 play_on_start_(true),
60 is_started_(false) { 60 is_started_(false) {
61 filter_ = RenderThreadImpl::current()->audio_message_filter(); 61 filter_ = RenderThreadImpl::current()->audio_message_filter();
62 } 62 }
63 63
64 void AudioDevice::Initialize(const AudioParameters& params, 64 void AudioDevice::Initialize(const media::AudioParameters& params,
65 RenderCallback* callback) { 65 RenderCallback* callback) {
66 CHECK_EQ(0, stream_id_) << 66 CHECK_EQ(0, stream_id_) <<
67 "AudioDevice::Initialize() must be called before Start()"; 67 "AudioDevice::Initialize() must be called before Start()";
68 68
69 CHECK(!callback_); // Calling Initialize() twice? 69 CHECK(!callback_); // Calling Initialize() twice?
70 70
71 audio_parameters_ = params; 71 audio_parameters_ = params;
72 callback_ = callback; 72 callback_ = callback;
73 } 73 }
74 74
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after
116 volume_ = volume; 116 volume_ = volume;
117 117
118 return true; 118 return true;
119 } 119 }
120 120
121 void AudioDevice::GetVolume(double* volume) { 121 void AudioDevice::GetVolume(double* volume) {
122 // Return a locally cached version of the current scaling factor. 122 // Return a locally cached version of the current scaling factor.
123 *volume = volume_; 123 *volume = volume_;
124 } 124 }
125 125
126 void AudioDevice::InitializeOnIOThread(const AudioParameters& params) { 126 void AudioDevice::InitializeOnIOThread(const media::AudioParameters& params) {
127 DCHECK(message_loop()->BelongsToCurrentThread()); 127 DCHECK(message_loop()->BelongsToCurrentThread());
128 // Make sure we don't create the stream more than once. 128 // Make sure we don't create the stream more than once.
129 DCHECK_EQ(0, stream_id_); 129 DCHECK_EQ(0, stream_id_);
130 if (stream_id_) 130 if (stream_id_)
131 return; 131 return;
132 132
133 stream_id_ = filter_->AddDelegate(this); 133 stream_id_ = filter_->AddDelegate(this);
134 Send(new AudioHostMsg_CreateStream(stream_id_, params)); 134 Send(new AudioHostMsg_CreateStream(stream_id_, params));
135 } 135 }
136 136
(...skipping 111 matching lines...) Expand 10 before | Expand all | Expand 10 after
248 } 248 }
249 249
250 void AudioDevice::WillDestroyCurrentMessageLoop() { 250 void AudioDevice::WillDestroyCurrentMessageLoop() {
251 LOG(ERROR) << "IO loop going away before the audio device has been stopped"; 251 LOG(ERROR) << "IO loop going away before the audio device has been stopped";
252 ShutDownOnIOThread(); 252 ShutDownOnIOThread();
253 } 253 }
254 254
255 // AudioDevice::AudioThreadCallback 255 // AudioDevice::AudioThreadCallback
256 256
257 AudioDevice::AudioThreadCallback::AudioThreadCallback( 257 AudioDevice::AudioThreadCallback::AudioThreadCallback(
258 const AudioParameters& audio_parameters, 258 const media::AudioParameters& audio_parameters,
259 base::SharedMemoryHandle memory, 259 base::SharedMemoryHandle memory,
260 int memory_length, 260 int memory_length,
261 media::AudioRendererSink::RenderCallback* render_callback) 261 media::AudioRendererSink::RenderCallback* render_callback)
262 : AudioDeviceThread::Callback(audio_parameters, memory, memory_length), 262 : AudioDeviceThread::Callback(audio_parameters, memory, memory_length),
263 render_callback_(render_callback) { 263 render_callback_(render_callback) {
264 } 264 }
265 265
266 AudioDevice::AudioThreadCallback::~AudioThreadCallback() { 266 AudioDevice::AudioThreadCallback::~AudioThreadCallback() {
267 } 267 }
268 268
(...skipping 24 matching lines...) Expand all
293 // to the browser process as float, so we don't lose precision for 293 // to the browser process as float, so we don't lose precision for
294 // audio hardware which has better than 16bit precision. 294 // audio hardware which has better than 16bit precision.
295 int16* data = reinterpret_cast<int16*>(shared_memory_.memory()); 295 int16* data = reinterpret_cast<int16*>(shared_memory_.memory());
296 media::InterleaveFloatToInt16(audio_data_, data, 296 media::InterleaveFloatToInt16(audio_data_, data,
297 audio_parameters_.frames_per_buffer()); 297 audio_parameters_.frames_per_buffer());
298 298
299 // Let the host know we are done. 299 // Let the host know we are done.
300 media::SetActualDataSizeInBytes(&shared_memory_, memory_length_, 300 media::SetActualDataSizeInBytes(&shared_memory_, memory_length_,
301 num_frames * audio_parameters_.channels() * sizeof(data[0])); 301 num_frames * audio_parameters_.channels() * sizeof(data[0]));
302 } 302 }
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