webrtc/modules/utility/source/coder.h

/*
 *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#ifndef WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_
#define WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_

#include <memory>

#include "webrtc/common_types.h"
#include "webrtc/modules/audio_coding/acm2/codec_manager.h"
#include "webrtc/modules/audio_coding/acm2/rent_a_codec.h"
#include "webrtc/modules/audio_coding/include/audio_coding_module.h"
#include "webrtc/typedefs.h"

namespace webrtc {
class AudioFrame;

class AudioCoder : public AudioPacketizationCallback {
 public:
  AudioCoder(uint32_t instanceID);
  ~AudioCoder();

  int32_t SetEncodeCodec(const CodecInst& codecInst);

  int32_t SetDecodeCodec(const CodecInst& codecInst);

  int32_t Decode(AudioFrame& decodedAudio,
                 uint32_t sampFreqHz,
                 const int8_t* incomingPayload,
                 size_t payloadLength);

  int32_t PlayoutData(AudioFrame& decodedAudio, uint16_t& sampFreqHz);

  int32_t Encode(const AudioFrame& audio,
                 int8_t* encodedData,
                 size_t& encodedLengthInBytes);

 protected:
  int32_t SendData(FrameType frameType,
                   uint8_t payloadType,
                   uint32_t timeStamp,
                   const uint8_t* payloadData,
                   size_t payloadSize,
                   const RTPFragmentationHeader* fragmentation) override;

 private:
  std::unique_ptr<AudioCodingModule> _acm;
  acm2::CodecManager codec_manager_;
  acm2::RentACodec rent_a_codec_;

  CodecInst _receiveCodec;

  uint32_t _encodeTimestamp;
  int8_t* _encodedData;
  size_t _encodedLengthInBytes;

  uint32_t _decodeTimestamp;
};
}  // namespace webrtc

#endif  // WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_