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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_BASE_AUDIO_TIMESTAMP_HELPER_H_ | 5 #ifndef MEDIA_BASE_AUDIO_TIMESTAMP_HELPER_H_ |
6 #define MEDIA_BASE_AUDIO_TIMESTAMP_HELPER_H_ | 6 #define MEDIA_BASE_AUDIO_TIMESTAMP_HELPER_H_ |
7 | 7 |
| 8 #include <stdint.h> |
| 9 |
8 #include "base/macros.h" | 10 #include "base/macros.h" |
9 #include "base/time/time.h" | 11 #include "base/time/time.h" |
10 #include "media/base/media_export.h" | 12 #include "media/base/media_export.h" |
11 | 13 |
12 namespace media { | 14 namespace media { |
13 | 15 |
14 // Generates timestamps for a sequence of audio sample frames. This class should | 16 // Generates timestamps for a sequence of audio sample frames. This class should |
15 // be used any place timestamps need to be calculated for a sequence of audio | 17 // be used any place timestamps need to be calculated for a sequence of audio |
16 // samples. It helps avoid timestamps inaccuracies caused by rounding/truncation | 18 // samples. It helps avoid timestamps inaccuracies caused by rounding/truncation |
17 // in repeated sample count to timestamp conversions. | 19 // in repeated sample count to timestamp conversions. |
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64 | 66 |
65 // Number of frames accumulated by AddFrames() calls. | 67 // Number of frames accumulated by AddFrames() calls. |
66 int64_t frame_count_; | 68 int64_t frame_count_; |
67 | 69 |
68 DISALLOW_IMPLICIT_CONSTRUCTORS(AudioTimestampHelper); | 70 DISALLOW_IMPLICIT_CONSTRUCTORS(AudioTimestampHelper); |
69 }; | 71 }; |
70 | 72 |
71 } // namespace media | 73 } // namespace media |
72 | 74 |
73 #endif | 75 #endif |
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