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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_BUFFER_CONVERTER | 5 #ifndef MEDIA_BASE_AUDIO_BUFFER_CONVERTER |
6 #define MEDIA_BASE_AUDIO_BUFFER_CONVERTER | 6 #define MEDIA_BASE_AUDIO_BUFFER_CONVERTER |
7 | 7 |
8 #include <deque> | 8 #include <deque> |
9 #include <memory> | 9 #include <memory> |
10 | 10 |
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44 | 44 |
45 int input_buffer_size_for_testing() const { | 45 int input_buffer_size_for_testing() const { |
46 return input_params_.frames_per_buffer(); | 46 return input_params_.frames_per_buffer(); |
47 } | 47 } |
48 int input_frames_left_for_testing() const { | 48 int input_frames_left_for_testing() const { |
49 return input_frames_; | 49 return input_frames_; |
50 } | 50 } |
51 | 51 |
52 private: | 52 private: |
53 // Callback to provide data to the AudioConverter | 53 // Callback to provide data to the AudioConverter |
54 double ProvideInput(AudioBus* audio_bus, | 54 double ProvideInput(AudioBus* audio_bus, uint32_t frames_delayed) override; |
55 base::TimeDelta buffer_delay) override; | |
56 | 55 |
57 // Reset the converter in response to a configuration change. | 56 // Reset the converter in response to a configuration change. |
58 void ResetConverter(const scoped_refptr<AudioBuffer>& input_buffer); | 57 void ResetConverter(const scoped_refptr<AudioBuffer>& input_buffer); |
59 | 58 |
60 // Perform conversion if we have enough data. | 59 // Perform conversion if we have enough data. |
61 void ConvertIfPossible(); | 60 void ConvertIfPossible(); |
62 | 61 |
63 // Flush remaining output | 62 // Flush remaining output |
64 void Flush(); | 63 void Flush(); |
65 | 64 |
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99 // full AudioBuses in ProvideInput()? | 98 // full AudioBuses in ProvideInput()? |
100 bool is_flushing_; | 99 bool is_flushing_; |
101 | 100 |
102 // The AudioConverter which does the real work here. | 101 // The AudioConverter which does the real work here. |
103 std::unique_ptr<AudioConverter> audio_converter_; | 102 std::unique_ptr<AudioConverter> audio_converter_; |
104 }; | 103 }; |
105 | 104 |
106 } // namespace media | 105 } // namespace media |
107 | 106 |
108 #endif // MEDIA_BASE_AUDIO_BUFFER_CONVERTER | 107 #endif // MEDIA_BASE_AUDIO_BUFFER_CONVERTER |
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