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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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_HOST_AUDIO_CAPTURER_H_ | 5 #ifndef REMOTING_PROTOCOL_AUDIO_SOURCE_H_ |
6 #define REMOTING_HOST_AUDIO_CAPTURER_H_ | 6 #define REMOTING_PROTOCOL_AUDIO_SOURCE_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/callback.h" | 10 #include "base/callback.h" |
11 | 11 |
12 namespace remoting { | 12 namespace remoting { |
13 | 13 |
14 class AudioPacket; | 14 class AudioPacket; |
15 | 15 |
16 class AudioCapturer { | 16 namespace protocol { |
| 17 |
| 18 class AudioSource { |
17 public: | 19 public: |
18 typedef base::Callback<void(std::unique_ptr<AudioPacket> packet)> | 20 typedef base::Callback<void(std::unique_ptr<AudioPacket> packet)> |
19 PacketCapturedCallback; | 21 PacketCapturedCallback; |
20 | 22 |
21 virtual ~AudioCapturer() {} | 23 virtual ~AudioSource() {} |
22 | |
23 // Returns true if audio capturing is supported on this platform. If this | |
24 // returns true, then Create() must not return nullptr. | |
25 static bool IsSupported(); | |
26 static std::unique_ptr<AudioCapturer> Create(); | |
27 | 24 |
28 // Capturers should sample at a 44.1 or 48 kHz sampling rate, in uncompressed | 25 // Capturers should sample at a 44.1 or 48 kHz sampling rate, in uncompressed |
29 // PCM stereo format. Capturers may choose the number of frames per packet. | 26 // PCM stereo format. Capturers may choose the number of frames per packet. |
30 // Returns true on success. | 27 // Returns true on success. |
31 virtual bool Start(const PacketCapturedCallback& callback) = 0; | 28 virtual bool Start(const PacketCapturedCallback& callback) = 0; |
32 | |
33 static bool IsValidSampleRate(int sample_rate); | |
34 }; | 29 }; |
35 | 30 |
| 31 } // namespace protocol |
36 } // namespace remoting | 32 } // namespace remoting |
37 | 33 |
38 #endif // REMOTING_HOST_AUDIO_CAPTURER_H_ | 34 #endif // REMOTING_PROTOCOL_AUDIO_SOURCE_H_ |
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