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Side by Side Diff: media/audio/linux/alsa_output.h

Issue 6142009: Upating the app, ceee, chrome, ipc, media, and net directories to use the correct lock.h file. (Closed) Base URL: http://git.chromium.org/git/chromium.git@trunk
Patch Set: Unified patch updating all references to the new base/synchronization/lock.h Created 9 years, 11 months ago
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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2010 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 // Creates an output stream based on the ALSA PCM interface. 5 // Creates an output stream based on the ALSA PCM interface.
6 // 6 //
7 // On device write failure, the stream will move itself to an invalid state. 7 // On device write failure, the stream will move itself to an invalid state.
8 // No more data will be pulled from the data source, or written to the device. 8 // No more data will be pulled from the data source, or written to the device.
9 // All calls to public API functions will either no-op themselves, or return an 9 // All calls to public API functions will either no-op themselves, or return an
10 // error if possible. Specifically, If the stream is in an error state, Open() 10 // error if possible. Specifically, If the stream is in an error state, Open()
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33 // ScopedRunnableMethodFactory to create tasks. 33 // ScopedRunnableMethodFactory to create tasks.
34 34
35 #ifndef MEDIA_AUDIO_LINUX_ALSA_OUTPUT_H_ 35 #ifndef MEDIA_AUDIO_LINUX_ALSA_OUTPUT_H_
36 #define MEDIA_AUDIO_LINUX_ALSA_OUTPUT_H_ 36 #define MEDIA_AUDIO_LINUX_ALSA_OUTPUT_H_
37 37
38 #include <alsa/asoundlib.h> 38 #include <alsa/asoundlib.h>
39 39
40 #include <string> 40 #include <string>
41 41
42 #include "base/gtest_prod_util.h" 42 #include "base/gtest_prod_util.h"
43 #include "base/lock.h"
44 #include "base/ref_counted.h" 43 #include "base/ref_counted.h"
45 #include "base/scoped_ptr.h" 44 #include "base/scoped_ptr.h"
45 #include "base/synchronization/lock.h"
46 #include "media/audio/audio_io.h" 46 #include "media/audio/audio_io.h"
47 #include "media/audio/audio_parameters.h" 47 #include "media/audio/audio_parameters.h"
48 48
49 namespace media { 49 namespace media {
50 class SeekableBuffer; 50 class SeekableBuffer;
51 }; // namespace media 51 }; // namespace media
52 52
53 class AlsaWrapper; 53 class AlsaWrapper;
54 class AudioManagerLinux; 54 class AudioManagerLinux;
55 class MessageLoop; 55 class MessageLoop;
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186 // using a deleted callback. 186 // using a deleted callback.
187 uint32 OnMoreData(AudioOutputStream* stream, uint8* dest, 187 uint32 OnMoreData(AudioOutputStream* stream, uint8* dest,
188 uint32 max_size, AudioBuffersState buffers_state); 188 uint32 max_size, AudioBuffersState buffers_state);
189 void OnError(AudioOutputStream* stream, int code); 189 void OnError(AudioOutputStream* stream, int code);
190 190
191 // Changes the AudioSourceCallback to proxy calls to. Pass in NULL to 191 // Changes the AudioSourceCallback to proxy calls to. Pass in NULL to
192 // release ownership of the currently registered callback. 192 // release ownership of the currently registered callback.
193 void set_source_callback(AudioSourceCallback* callback); 193 void set_source_callback(AudioSourceCallback* callback);
194 194
195 private: 195 private:
196 Lock lock_; 196 base::Lock lock_;
197 197
198 InternalState state_; 198 InternalState state_;
199 float volume_; // Volume level from 0.0 to 1.0. 199 float volume_; // Volume level from 0.0 to 1.0.
200 200
201 AudioSourceCallback* source_callback_; 201 AudioSourceCallback* source_callback_;
202 202
203 MessageLoop* const state_transition_loop_; 203 MessageLoop* const state_transition_loop_;
204 204
205 DISALLOW_COPY_AND_ASSIGN(SharedData); 205 DISALLOW_COPY_AND_ASSIGN(SharedData);
206 } shared_data_; 206 } shared_data_;
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246 MessageLoop* client_thread_loop_; 246 MessageLoop* client_thread_loop_;
247 247
248 // The message loop responsible for querying the data source, and writing to 248 // The message loop responsible for querying the data source, and writing to
249 // the output device. 249 // the output device.
250 MessageLoop* message_loop_; 250 MessageLoop* message_loop_;
251 251
252 DISALLOW_COPY_AND_ASSIGN(AlsaPcmOutputStream); 252 DISALLOW_COPY_AND_ASSIGN(AlsaPcmOutputStream);
253 }; 253 };
254 254
255 #endif // MEDIA_AUDIO_LINUX_ALSA_OUTPUT_H_ 255 #endif // MEDIA_AUDIO_LINUX_ALSA_OUTPUT_H_
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