1 /*
2  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef API_CALL_AUDIO_SINK_H_
12 #define API_CALL_AUDIO_SINK_H_
13 
14 #if defined(WEBRTC_POSIX) && !defined(__STDC_FORMAT_MACROS)
15 // Avoid conflict with format_macros.h.
16 #define __STDC_FORMAT_MACROS
17 #endif
18 
19 #include <inttypes.h>
20 #include <stddef.h>
21 
22 namespace webrtc {
23 
24 // Represents a simple push audio sink.
25 class AudioSinkInterface {
26  public:
~AudioSinkInterface()27   virtual ~AudioSinkInterface() {}
28 
29   struct Data {
DataData30     Data(const int16_t* data,
31          size_t samples_per_channel,
32          int sample_rate,
33          size_t channels,
34          uint32_t timestamp)
35         : data(data),
36           samples_per_channel(samples_per_channel),
37           sample_rate(sample_rate),
38           channels(channels),
39           timestamp(timestamp) {}
40 
41     const int16_t* data;         // The actual 16bit audio data.
42     size_t samples_per_channel;  // Number of frames in the buffer.
43     int sample_rate;             // Sample rate in Hz.
44     size_t channels;             // Number of channels in the audio data.
45     uint32_t timestamp;          // The RTP timestamp of the first sample.
46   };
47 
48   virtual void OnData(const Data& audio) = 0;
49 };
50 
51 }  // namespace webrtc
52 
53 #endif  // API_CALL_AUDIO_SINK_H_
54