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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_HOST_AUDIO_CAPTURER_H_ | 5 #ifndef REMOTING_HOST_AUDIO_CAPTURER_H_ |
6 #define REMOTING_HOST_AUDIO_CAPTURER_H_ | 6 #define REMOTING_HOST_AUDIO_CAPTURER_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/memory/scoped_ptr.h" | 9 #include "base/memory/scoped_ptr.h" |
10 | 10 |
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21 | 21 |
22 // Returns true if audio capturing is supported on this platform. If this | 22 // Returns true if audio capturing is supported on this platform. If this |
23 // returns true, then Create() must not return nullptr. | 23 // returns true, then Create() must not return nullptr. |
24 static bool IsSupported(); | 24 static bool IsSupported(); |
25 static scoped_ptr<AudioCapturer> Create(); | 25 static scoped_ptr<AudioCapturer> Create(); |
26 | 26 |
27 // Capturers should sample at a 44.1 or 48 kHz sampling rate, in uncompressed | 27 // Capturers should sample at a 44.1 or 48 kHz sampling rate, in uncompressed |
28 // PCM stereo format. Capturers may choose the number of frames per packet. | 28 // PCM stereo format. Capturers may choose the number of frames per packet. |
29 // Returns true on success. | 29 // Returns true on success. |
30 virtual bool Start(const PacketCapturedCallback& callback) = 0; | 30 virtual bool Start(const PacketCapturedCallback& callback) = 0; |
31 // Stops the audio capturer, and frees the OS-specific audio capture | |
32 // resources. | |
33 virtual void Stop() = 0; | |
34 // Returns true if the audio capturer is running. | |
35 virtual bool IsStarted() = 0; | |
36 | 31 |
37 static bool IsValidSampleRate(int sample_rate); | 32 static bool IsValidSampleRate(int sample_rate); |
38 }; | 33 }; |
39 | 34 |
40 } // namespace remoting | 35 } // namespace remoting |
41 | 36 |
42 #endif // REMOTING_HOST_AUDIO_CAPTURER_H_ | 37 #endif // REMOTING_HOST_AUDIO_CAPTURER_H_ |
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