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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 #ifndef MEDIA_AUDIO_AUDIO_PARAMETERS_H_ | 5 #ifndef MEDIA_AUDIO_AUDIO_PARAMETERS_H_ |
6 #define MEDIA_AUDIO_AUDIO_PARAMETERS_H_ | 6 #define MEDIA_AUDIO_AUDIO_PARAMETERS_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/time/time.h" | |
9 #include "media/base/channel_layout.h" | 10 #include "media/base/channel_layout.h" |
10 #include "media/base/media_export.h" | 11 #include "media/base/media_export.h" |
11 | 12 |
12 namespace media { | 13 namespace media { |
13 | 14 |
14 struct MEDIA_EXPORT AudioInputBufferParameters { | 15 struct MEDIA_EXPORT AudioInputBufferParameters { |
15 double volume; | 16 double volume; |
16 uint32 size; | 17 uint32 size; |
17 }; | 18 }; |
18 | 19 |
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61 | 62 |
62 // Returns size of audio buffer in bytes. | 63 // Returns size of audio buffer in bytes. |
63 int GetBytesPerBuffer() const; | 64 int GetBytesPerBuffer() const; |
64 | 65 |
65 // Returns the number of bytes representing one second of audio. | 66 // Returns the number of bytes representing one second of audio. |
66 int GetBytesPerSecond() const; | 67 int GetBytesPerSecond() const; |
67 | 68 |
68 // Returns the number of bytes representing a frame of audio. | 69 // Returns the number of bytes representing a frame of audio. |
69 int GetBytesPerFrame() const; | 70 int GetBytesPerFrame() const; |
70 | 71 |
72 base::TimeDelta GetBufferDuration() const; | |
henrika (OOO until Aug 14)
2013/08/20 07:50:30
OK, I see that you have added this method. Please
DaleCurtis
2013/09/11 01:16:03
The resolution being limited to microseconds is a
| |
73 | |
71 Format format() const { return format_; } | 74 Format format() const { return format_; } |
72 ChannelLayout channel_layout() const { return channel_layout_; } | 75 ChannelLayout channel_layout() const { return channel_layout_; } |
73 int sample_rate() const { return sample_rate_; } | 76 int sample_rate() const { return sample_rate_; } |
74 int bits_per_sample() const { return bits_per_sample_; } | 77 int bits_per_sample() const { return bits_per_sample_; } |
75 int frames_per_buffer() const { return frames_per_buffer_; } | 78 int frames_per_buffer() const { return frames_per_buffer_; } |
76 int channels() const { return channels_; } | 79 int channels() const { return channels_; } |
77 int input_channels() const { return input_channels_; } | 80 int input_channels() const { return input_channels_; } |
78 | 81 |
79 // Set to CHANNEL_LAYOUT_DISCRETE with given number of channels. | 82 // Set to CHANNEL_LAYOUT_DISCRETE with given number of channels. |
80 void SetDiscreteChannels(int channels); | 83 void SetDiscreteChannels(int channels); |
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115 if (a.sample_rate() != b.sample_rate()) | 118 if (a.sample_rate() != b.sample_rate()) |
116 return a.sample_rate() < b.sample_rate(); | 119 return a.sample_rate() < b.sample_rate(); |
117 if (a.bits_per_sample() != b.bits_per_sample()) | 120 if (a.bits_per_sample() != b.bits_per_sample()) |
118 return a.bits_per_sample() < b.bits_per_sample(); | 121 return a.bits_per_sample() < b.bits_per_sample(); |
119 return a.frames_per_buffer() < b.frames_per_buffer(); | 122 return a.frames_per_buffer() < b.frames_per_buffer(); |
120 } | 123 } |
121 | 124 |
122 } // namespace media | 125 } // namespace media |
123 | 126 |
124 #endif // MEDIA_AUDIO_AUDIO_PARAMETERS_H_ | 127 #endif // MEDIA_AUDIO_AUDIO_PARAMETERS_H_ |
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