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 WEBRTC_AUDIO_AUDIO_SINK_H_
12#define WEBRTC_AUDIO_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
22namespace webrtc {
23
24// Represents a simple push audio sink.
25class AudioSinkInterface {
26 public:
27  virtual ~AudioSinkInterface() {}
28
29  struct Data {
30    Data(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    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  // WEBRTC_AUDIO_AUDIO_SINK_H_
54