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/common_types.h" 15 #include "webrtc/modules/audio_coding/main/interface/audio_coding_module.h" 16 #include "webrtc/system_wrappers/interface/scoped_ptr.h" 17 #include "webrtc/typedefs.h" 18 19 namespace webrtc { 20 class AudioFrame; 21 22 class AudioCoder : public AudioPacketizationCallback 23 { 24 public: 25 AudioCoder(uint32_t instanceID); 26 ~AudioCoder(); 27 28 int32_t SetEncodeCodec( 29 const CodecInst& codecInst, 30 ACMAMRPackingFormat amrFormat = AMRBandwidthEfficient); 31 32 int32_t SetDecodeCodec( 33 const CodecInst& codecInst, 34 ACMAMRPackingFormat amrFormat = AMRBandwidthEfficient); 35 36 int32_t Decode(AudioFrame& decodedAudio, uint32_t sampFreqHz, 37 const int8_t* incomingPayload, int32_t payloadLength); 38 39 int32_t PlayoutData(AudioFrame& decodedAudio, uint16_t& sampFreqHz); 40 41 int32_t Encode(const AudioFrame& audio, int8_t* encodedData, 42 uint32_t& encodedLengthInBytes); 43 44 protected: 45 virtual int32_t SendData( 46 FrameType frameType, 47 uint8_t payloadType, 48 uint32_t timeStamp, 49 const uint8_t* payloadData, 50 uint16_t payloadSize, 51 const RTPFragmentationHeader* fragmentation) OVERRIDE; 52 53 private: 54 scoped_ptr<AudioCodingModule> _acm; 55 56 CodecInst _receiveCodec; 57 58 uint32_t _encodeTimestamp; 59 int8_t* _encodedData; 60 uint32_t _encodedLengthInBytes; 61 62 uint32_t _decodeTimestamp; 63 }; 64 } // namespace webrtc 65 66 #endif // WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_ 67
