1/*
2 *  Copyright (c) 2011 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_MODULES_UTILITY_SOURCE_CODER_H_
12#define WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_
13
14#include "webrtc/base/scoped_ptr.h"
15#include "webrtc/common_types.h"
16#include "webrtc/modules/audio_coding/include/audio_coding_module.h"
17#include "webrtc/typedefs.h"
18
19namespace webrtc {
20class AudioFrame;
21
22class AudioCoder : public AudioPacketizationCallback
23{
24public:
25    AudioCoder(uint32_t instanceID);
26    ~AudioCoder();
27
28    int32_t SetEncodeCodec(const CodecInst& codecInst);
29
30    int32_t SetDecodeCodec(const CodecInst& codecInst);
31
32    int32_t Decode(AudioFrame& decodedAudio, uint32_t sampFreqHz,
33                   const int8_t* incomingPayload, size_t payloadLength);
34
35    int32_t PlayoutData(AudioFrame& decodedAudio, uint16_t& sampFreqHz);
36
37    int32_t Encode(const AudioFrame& audio, int8_t* encodedData,
38                   size_t& encodedLengthInBytes);
39
40protected:
41 int32_t SendData(FrameType frameType,
42                  uint8_t payloadType,
43                  uint32_t timeStamp,
44                  const uint8_t* payloadData,
45                  size_t payloadSize,
46                  const RTPFragmentationHeader* fragmentation) override;
47
48private:
49 rtc::scoped_ptr<AudioCodingModule> _acm;
50
51    CodecInst _receiveCodec;
52
53    uint32_t _encodeTimestamp;
54    int8_t*  _encodedData;
55    size_t _encodedLengthInBytes;
56
57    uint32_t _decodeTimestamp;
58};
59}  // namespace webrtc
60
61#endif // WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_
62