mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-23 11:17:09 +08:00
105 lines
2.9 KiB
C++
105 lines
2.9 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_H264RTPCODEC_H
|
||
#define ZLMEDIAKIT_H264RTPCODEC_H
|
||
|
||
#include "Rtsp/RtpCodec.h"
|
||
#include "Util/ResourcePool.h"
|
||
#include "Extension/H264.h"
|
||
#include "Common/Stamp.h"
|
||
using namespace toolkit;
|
||
|
||
namespace mediakit{
|
||
|
||
/**
|
||
* h264 rtp解码类
|
||
* 将 h264 over rtsp-rtp 解复用出 h264-Frame
|
||
* rfc3984
|
||
*/
|
||
class H264RtpDecoder : public RtpCodec{
|
||
public:
|
||
typedef std::shared_ptr<H264RtpDecoder> Ptr;
|
||
|
||
H264RtpDecoder();
|
||
~H264RtpDecoder() {}
|
||
|
||
/**
|
||
* 输入264 rtp包
|
||
* @param rtp rtp包
|
||
* @param key_pos 此参数忽略之
|
||
*/
|
||
bool inputRtp(const RtpPacket::Ptr &rtp, bool key_pos = true) override;
|
||
|
||
CodecId getCodecId() const override{
|
||
return CodecH264;
|
||
}
|
||
|
||
private:
|
||
bool singleFrame(const RtpPacket::Ptr &rtp, const uint8_t *ptr, ssize_t size, uint32_t stamp);
|
||
bool unpackStapA(const RtpPacket::Ptr &rtp, const uint8_t *ptr, ssize_t size, uint32_t stamp);
|
||
bool mergeFu(const RtpPacket::Ptr &rtp, const uint8_t *ptr, ssize_t size, uint32_t stamp, uint16_t seq);
|
||
|
||
bool decodeRtp(const RtpPacket::Ptr &rtp);
|
||
H264Frame::Ptr obtainFrame();
|
||
void outputFrame(const RtpPacket::Ptr &rtp, const H264Frame::Ptr &frame);
|
||
|
||
private:
|
||
bool _gop_dropped = false;
|
||
bool _fu_dropped = true;
|
||
uint16_t _last_seq = 0;
|
||
H264Frame::Ptr _frame;
|
||
DtsGenerator _dts_generator;
|
||
};
|
||
|
||
/**
|
||
* 264 rtp打包类
|
||
*/
|
||
class H264RtpEncoder : public H264RtpDecoder ,public RtpInfo{
|
||
public:
|
||
typedef std::shared_ptr<H264RtpEncoder> Ptr;
|
||
|
||
/**
|
||
* @param ssrc ssrc
|
||
* @param mtu mtu大小
|
||
* @param sample_rate 采样率，强制为90000
|
||
* @param pt pt类型
|
||
* @param interleaved rtsp interleaved
|
||
*/
|
||
H264RtpEncoder(uint32_t ssrc,
|
||
uint32_t mtu = 1400,
|
||
uint32_t sample_rate = 90000,
|
||
uint8_t pt = 96,
|
||
uint8_t interleaved = TrackVideo * 2);
|
||
~H264RtpEncoder() {}
|
||
|
||
/**
|
||
* 输入264帧
|
||
* @param frame 帧数据，必须
|
||
*/
|
||
void inputFrame(const Frame::Ptr &frame) override;
|
||
|
||
private:
|
||
void insertConfigFrame(uint32_t pts);
|
||
void inputFrame_l(const Frame::Ptr &frame, bool is_mark);
|
||
void packRtp(const char *data, size_t len, uint32_t pts, bool is_mark, bool gop_pos);
|
||
void packRtpFu(const char *data, size_t len, uint32_t pts, bool is_mark, bool gop_pos);
|
||
void packRtpStapA(const char *data, size_t len, uint32_t pts, bool is_mark, bool gop_pos);
|
||
|
||
private:
|
||
Frame::Ptr _sps;
|
||
Frame::Ptr _pps;
|
||
Frame::Ptr _last_frame;
|
||
};
|
||
|
||
}//namespace mediakit{
|
||
|
||
#endif //ZLMEDIAKIT_H264RTPCODEC_H
|