ZLMediaKit/src/Extension/AACRtp.h
2021-02-06 20:10:33 +08:00

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/*
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
*
* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
*
* Use of this source code is governed by MIT license that can be found in the
* LICENSE file in the root of the source tree. All contributing project authors
* may be found in the AUTHORS file in the root of the source tree.
*/
#ifndef ZLMEDIAKIT_AACRTPCODEC_H
#define ZLMEDIAKIT_AACRTPCODEC_H
#include "Rtsp/RtpCodec.h"
#include "Extension/AAC.h"
namespace mediakit{
/**
* aac rtp转adts类
*/
class AACRtpDecoder : public RtpCodec {
public:
typedef std::shared_ptr<AACRtpDecoder> Ptr;
AACRtpDecoder(const Track::Ptr &track);
~AACRtpDecoder() {}
/**
* 输入rtp并解码
* @param rtp rtp数据包
* @param key_pos 此参数内部强制转换为false,请忽略之
*/
bool inputRtp(const RtpPacket::Ptr &rtp, bool key_pos = false) override;
CodecId getCodecId() const override {
return CodecAAC;
}
protected:
AACRtpDecoder();
private:
void obtainFrame();
void flushData();
private:
uint32_t _last_dts = 0;
string _aac_cfg;
FrameImp::Ptr _frame;
};
/**
* aac adts转rtp类
*/
class AACRtpEncoder : public AACRtpDecoder , public RtpInfo {
public:
typedef std::shared_ptr<AACRtpEncoder> Ptr;
/**
* @param ui32Ssrc ssrc
* @param ui32MtuSize mtu 大小
* @param ui32SampleRate 采样率
* @param ui8PayloadType pt类型
* @param ui8Interleaved rtsp interleaved 值
*/
AACRtpEncoder(uint32_t ui32Ssrc,
uint32_t ui32MtuSize,
uint32_t ui32SampleRate,
uint8_t ui8PayloadType = 97,
uint8_t ui8Interleaved = TrackAudio * 2);
~AACRtpEncoder() {}
/**
* 输入aac 数据必须带dats头
* @param frame 带dats头的aac数据
*/
void inputFrame(const Frame::Ptr &frame) override;
private:
void makeAACRtp(const void *pData, size_t uiLen, bool bMark, uint32_t uiStamp);
private:
unsigned char _section_buf[1600];
};
}//namespace mediakit
#endif //ZLMEDIAKIT_AACRTPCODEC_H