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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_CAST_SENDER_AUDIO_SENDER_H_ | 5 #ifndef MEDIA_CAST_SENDER_AUDIO_SENDER_H_ |
| 6 #define MEDIA_CAST_SENDER_AUDIO_SENDER_H_ | 6 #define MEDIA_CAST_SENDER_AUDIO_SENDER_H_ |
| 7 | 7 |
| 8 #include "base/callback.h" | 8 #include "base/callback.h" |
| 9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
| 10 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
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| 44 // Note: It is not guaranteed that |audio_frame| will actually be encoded and | 44 // Note: It is not guaranteed that |audio_frame| will actually be encoded and |
| 45 // sent, if AudioSender detects too many frames in flight. Therefore, clients | 45 // sent, if AudioSender detects too many frames in flight. Therefore, clients |
| 46 // should be careful about the rate at which this method is called. | 46 // should be careful about the rate at which this method is called. |
| 47 // | 47 // |
| 48 // Note: It is invalid to call this method if InitializationResult() returns | 48 // Note: It is invalid to call this method if InitializationResult() returns |
| 49 // anything but STATUS_AUDIO_INITIALIZED. | 49 // anything but STATUS_AUDIO_INITIALIZED. |
| 50 void InsertAudio(scoped_ptr<AudioBus> audio_bus, | 50 void InsertAudio(scoped_ptr<AudioBus> audio_bus, |
| 51 const base::TimeTicks& recorded_time); | 51 const base::TimeTicks& recorded_time); |
| 52 | 52 |
| 53 protected: | 53 protected: |
| 54 virtual int GetNumberOfFramesInEncoder() const OVERRIDE; | 54 virtual int GetNumberOfFramesInEncoder() const override; |
| 55 virtual base::TimeDelta GetInFlightMediaDuration() const OVERRIDE; | 55 virtual base::TimeDelta GetInFlightMediaDuration() const override; |
| 56 virtual void OnAck(uint32 frame_id) OVERRIDE; | 56 virtual void OnAck(uint32 frame_id) override; |
| 57 | 57 |
| 58 private: | 58 private: |
| 59 // Called by the |audio_encoder_| with the next EncodedFrame to send. | 59 // Called by the |audio_encoder_| with the next EncodedFrame to send. |
| 60 void OnEncodedAudioFrame(int encoder_bitrate, | 60 void OnEncodedAudioFrame(int encoder_bitrate, |
| 61 scoped_ptr<EncodedFrame> encoded_frame, | 61 scoped_ptr<EncodedFrame> encoded_frame, |
| 62 int samples_skipped); | 62 int samples_skipped); |
| 63 | 63 |
| 64 // Encodes AudioBuses into EncodedFrames. | 64 // Encodes AudioBuses into EncodedFrames. |
| 65 scoped_ptr<AudioEncoder> audio_encoder_; | 65 scoped_ptr<AudioEncoder> audio_encoder_; |
| 66 | 66 |
| 67 // The number of audio samples enqueued in |audio_encoder_|. | 67 // The number of audio samples enqueued in |audio_encoder_|. |
| 68 int samples_in_encoder_; | 68 int samples_in_encoder_; |
| 69 | 69 |
| 70 // NOTE: Weak pointers must be invalidated before all other member variables. | 70 // NOTE: Weak pointers must be invalidated before all other member variables. |
| 71 base::WeakPtrFactory<AudioSender> weak_factory_; | 71 base::WeakPtrFactory<AudioSender> weak_factory_; |
| 72 | 72 |
| 73 DISALLOW_COPY_AND_ASSIGN(AudioSender); | 73 DISALLOW_COPY_AND_ASSIGN(AudioSender); |
| 74 }; | 74 }; |
| 75 | 75 |
| 76 } // namespace cast | 76 } // namespace cast |
| 77 } // namespace media | 77 } // namespace media |
| 78 | 78 |
| 79 #endif // MEDIA_CAST_SENDER_AUDIO_SENDER_H_ | 79 #endif // MEDIA_CAST_SENDER_AUDIO_SENDER_H_ |
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