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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef MEDIA_CAST_AUDIO_SENDER_AUDIO_ENCODER_H_ | |
6 #define MEDIA_CAST_AUDIO_SENDER_AUDIO_ENCODER_H_ | |
7 | |
8 #include "base/memory/ref_counted.h" | |
9 #include "base/memory/scoped_ptr.h" | |
10 #include "base/threading/thread_checker.h" | |
11 #include "media/base/audio_bus.h" | |
12 #include "media/cast/cast_environment.h" | |
13 | |
14 namespace base { | |
15 class TimeTicks; | |
16 } | |
17 | |
18 namespace media { | |
19 namespace cast { | |
20 | |
21 class AudioEncoder { | |
22 public: | |
23 typedef base::Callback<void(scoped_ptr<transport::EncodedFrame>)> | |
24 FrameEncodedCallback; | |
25 | |
26 AudioEncoder(const scoped_refptr<CastEnvironment>& cast_environment, | |
27 int num_channels, | |
28 int sampling_rate, | |
29 int bitrate, | |
30 transport::Codec codec, | |
31 const FrameEncodedCallback& frame_encoded_callback); | |
32 virtual ~AudioEncoder(); | |
33 | |
34 CastInitializationStatus InitializationResult() const; | |
35 | |
36 void InsertAudio(scoped_ptr<AudioBus> audio_bus, | |
37 const base::TimeTicks& recorded_time); | |
38 | |
39 private: | |
40 class ImplBase; | |
41 class OpusImpl; | |
42 class Pcm16Impl; | |
43 | |
44 const scoped_refptr<CastEnvironment> cast_environment_; | |
45 scoped_refptr<ImplBase> impl_; | |
46 | |
47 // Used to ensure only one thread invokes InsertAudio(). | |
48 base::ThreadChecker insert_thread_checker_; | |
49 | |
50 DISALLOW_COPY_AND_ASSIGN(AudioEncoder); | |
51 }; | |
52 | |
53 } // namespace cast | |
54 } // namespace media | |
55 | |
56 #endif // MEDIA_CAST_AUDIO_SENDER_AUDIO_ENCODER_H_ | |
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