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1 /* | |
2 * libjingle | |
3 * Copyright 2013 Google Inc. | |
4 * | |
5 * Redistribution and use in source and binary forms, with or without | |
6 * modification, are permitted provided that the following conditions are met: | |
7 * | |
8 * 1. Redistributions of source code must retain the above copyright notice, | |
9 * this list of conditions and the following disclaimer. | |
10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
11 * this list of conditions and the following disclaimer in the documentation | |
12 * and/or other materials provided with the distribution. | |
13 * 3. The name of the author may not be used to endorse or promote products | |
14 * derived from this software without specific prior written permission. | |
15 * | |
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
26 */ | |
27 | |
28 #ifndef TALK_MEDIA_BASE_AUDIORENDERER_H_ | |
29 #define TALK_MEDIA_BASE_AUDIORENDERER_H_ | |
30 | |
31 #include <cstddef> | |
32 | |
33 namespace cricket { | |
34 | |
35 // Abstract interface for rendering the audio data. | |
36 class AudioRenderer { | |
37 public: | |
38 class Sink { | |
39 public: | |
40 // Callback to receive data from the AudioRenderer. | |
41 virtual void OnData(const void* audio_data, | |
42 int bits_per_sample, | |
43 int sample_rate, | |
44 size_t number_of_channels, | |
45 size_t number_of_frames) = 0; | |
46 | |
47 // Called when the AudioRenderer is going away. | |
48 virtual void OnClose() = 0; | |
49 | |
50 protected: | |
51 virtual ~Sink() {} | |
52 }; | |
53 | |
54 // Sets a sink to the AudioRenderer. There can be only one sink connected | |
55 // to the renderer at a time. | |
56 virtual void SetSink(Sink* sink) {} | |
57 | |
58 protected: | |
59 virtual ~AudioRenderer() {} | |
60 }; | |
61 | |
62 } // namespace cricket | |
63 | |
64 #endif // TALK_MEDIA_BASE_AUDIORENDERER_H_ | |
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