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

111 lines
2.4 KiB
C++

/*
* 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_RTPCODEC_H
#define ZLMEDIAKIT_RTPCODEC_H
#include <memory>
#include "Util/RingBuffer.h"
#include "Player/PlayerBase.h"
using namespace toolkit;
namespace mediakit{
class RtpRing{
public:
typedef std::shared_ptr<RtpRing> Ptr;
typedef RingBuffer<RtpPacket::Ptr> RingType;
RtpRing(){}
virtual ~RtpRing(){}
/**
* 获取rtp环形缓存
* @return
*/
virtual RingType::Ptr getRtpRing() const {
return _rtpRing;
}
/**
* 设置rtp环形缓存
* @param ring
*/
virtual void setRtpRing(const RingType::Ptr &ring){
_rtpRing = ring;
}
/**
* 输入rtp包
* @param rtp rtp包
* @param key_pos 是否为关键帧第一个rtp包
* @return 是否为关键帧第一个rtp包
*/
virtual bool inputRtp(const RtpPacket::Ptr &rtp, bool key_pos){
if(_rtpRing){
_rtpRing->write(rtp,key_pos);
}
return key_pos;
}
protected:
RingType::Ptr _rtpRing;
};
class RtpInfo{
public:
using Ptr = std::shared_ptr<RtpInfo>;
RtpInfo(uint32_t ssrc, size_t mtu_size, uint32_t sample_rate, uint8_t pt, uint8_t interleaved) {
if (ssrc == 0) {
ssrc = ((uint64_t) this) & 0xFFFFFFFF;
}
_pt = pt;
_ssrc = ssrc;
_mtu_size = mtu_size;
_sample_rate = sample_rate;
_interleaved = interleaved;
}
virtual ~RtpInfo() {}
//返回rtp负载最大长度
size_t getMaxSize() const {
return _mtu_size - RtpPacket::kRtpHeaderSize;
}
uint32_t getSsrc() const {
return _ssrc;
}
RtpPacket::Ptr makeRtp(TrackType type,const void *data, size_t len, bool mark, uint32_t stamp);
private:
uint8_t _pt;
uint8_t _interleaved;
uint16_t _seq = 0;
uint32_t _ssrc;
uint32_t _sample_rate;
size_t _mtu_size;
};
class RtpCodec : public RtpRing, public FrameDispatcher , public CodecInfo{
public:
typedef std::shared_ptr<RtpCodec> Ptr;
RtpCodec(){}
virtual ~RtpCodec(){}
};
}//namespace mediakit
#endif //ZLMEDIAKIT_RTPCODEC_H