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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 REMOTING_CLIENT_AUDIO_PLAYER_H_ | 5 #ifndef REMOTING_CLIENT_AUDIO_PLAYER_H_ |
6 #define REMOTING_CLIENT_AUDIO_PLAYER_H_ | 6 #define REMOTING_CLIENT_AUDIO_PLAYER_H_ |
7 | 7 |
| 8 #include <stddef.h> |
| 9 #include <stdint.h> |
| 10 |
8 #include <list> | 11 #include <list> |
9 | 12 |
| 13 #include "base/macros.h" |
10 #include "base/memory/scoped_ptr.h" | 14 #include "base/memory/scoped_ptr.h" |
11 #include "base/synchronization/lock.h" | 15 #include "base/synchronization/lock.h" |
12 #include "remoting/proto/audio.pb.h" | 16 #include "remoting/proto/audio.pb.h" |
13 | 17 |
14 namespace remoting { | 18 namespace remoting { |
15 | 19 |
16 class AudioPlayer { | 20 class AudioPlayer { |
17 public: | 21 public: |
18 virtual ~AudioPlayer(); | 22 virtual ~AudioPlayer(); |
19 | 23 |
20 void ProcessAudioPacket(scoped_ptr<AudioPacket> packet); | 24 void ProcessAudioPacket(scoped_ptr<AudioPacket> packet); |
21 | 25 |
22 protected: | 26 protected: |
23 AudioPlayer(); | 27 AudioPlayer(); |
24 | 28 |
25 // Return the recommended number of samples to include in a frame. | 29 // Return the recommended number of samples to include in a frame. |
26 virtual uint32 GetSamplesPerFrame() = 0; | 30 virtual uint32_t GetSamplesPerFrame() = 0; |
27 | 31 |
28 // Resets the audio player and starts playback. | 32 // Resets the audio player and starts playback. |
29 // Returns true on success. | 33 // Returns true on success. |
30 virtual bool ResetAudioPlayer(AudioPacket::SamplingRate sampling_rate) = 0; | 34 virtual bool ResetAudioPlayer(AudioPacket::SamplingRate sampling_rate) = 0; |
31 | 35 |
32 // Function called by the browser when it needs more audio samples. | 36 // Function called by the browser when it needs more audio samples. |
33 static void AudioPlayerCallback(void* samples, | 37 static void AudioPlayerCallback(void* samples, |
34 uint32 buffer_size, | 38 uint32_t buffer_size, |
35 void* data); | 39 void* data); |
36 | 40 |
37 private: | 41 private: |
38 friend class AudioPlayerTest; | 42 friend class AudioPlayerTest; |
39 | 43 |
40 typedef std::list<AudioPacket*> AudioPacketQueue; | 44 typedef std::list<AudioPacket*> AudioPacketQueue; |
41 | 45 |
42 void ResetQueue(); | 46 void ResetQueue(); |
43 void FillWithSamples(void* samples, uint32 buffer_size); | 47 void FillWithSamples(void* samples, uint32_t buffer_size); |
44 | 48 |
45 AudioPacket::SamplingRate sampling_rate_; | 49 AudioPacket::SamplingRate sampling_rate_; |
46 | 50 |
47 bool start_failed_; | 51 bool start_failed_; |
48 | 52 |
49 // Protects |queued_packets_|, |queued_samples_ and |bytes_consumed_|. This is | 53 // Protects |queued_packets_|, |queued_samples_ and |bytes_consumed_|. This is |
50 // necessary to prevent races, because Pepper will call the callback on a | 54 // necessary to prevent races, because Pepper will call the callback on a |
51 // separate thread. | 55 // separate thread. |
52 base::Lock lock_; | 56 base::Lock lock_; |
53 | 57 |
54 AudioPacketQueue queued_packets_; | 58 AudioPacketQueue queued_packets_; |
55 int queued_bytes_; | 59 int queued_bytes_; |
56 | 60 |
57 // The number of bytes from |queued_packets_| that have been consumed. | 61 // The number of bytes from |queued_packets_| that have been consumed. |
58 size_t bytes_consumed_; | 62 size_t bytes_consumed_; |
59 | 63 |
60 DISALLOW_COPY_AND_ASSIGN(AudioPlayer); | 64 DISALLOW_COPY_AND_ASSIGN(AudioPlayer); |
61 }; | 65 }; |
62 | 66 |
63 } // namespace remoting | 67 } // namespace remoting |
64 | 68 |
65 #endif // REMOTING_CLIENT_AUDIO_PLAYER_H_ | 69 #endif // REMOTING_CLIENT_AUDIO_PLAYER_H_ |
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