mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-26 20:47:08 +08:00
352 lines
9.5 KiB
C++
352 lines
9.5 KiB
C++
/*
|
||
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
|
||
*
|
||
* This file is part of ZLMediaKit(https://github.com/xiongziliang/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_H265_H
|
||
#define ZLMEDIAKIT_H265_H
|
||
|
||
#include "Frame.h"
|
||
#include "Track.h"
|
||
#include "Util/base64.h"
|
||
#include "H264.h"
|
||
using namespace toolkit;
|
||
#define H265_TYPE(v) (((uint8_t)(v) >> 1) & 0x3f)
|
||
|
||
namespace mediakit {
|
||
|
||
bool getHEVCInfo(const string &strVps, const string &strSps, int &iVideoWidth, int &iVideoHeight, float &iVideoFps);
|
||
|
||
/**
|
||
* 265帧类
|
||
*/
|
||
class H265Frame : public FrameImp {
|
||
public:
|
||
typedef std::shared_ptr<H265Frame> Ptr;
|
||
|
||
typedef enum {
|
||
NAL_TRAIL_N = 0,
|
||
NAL_TRAIL_R = 1,
|
||
NAL_TSA_N = 2,
|
||
NAL_TSA_R = 3,
|
||
NAL_STSA_N = 4,
|
||
NAL_STSA_R = 5,
|
||
NAL_RADL_N = 6,
|
||
NAL_RADL_R = 7,
|
||
NAL_RASL_N = 8,
|
||
NAL_RASL_R = 9,
|
||
NAL_BLA_W_LP = 16,
|
||
NAL_BLA_W_RADL = 17,
|
||
NAL_BLA_N_LP = 18,
|
||
NAL_IDR_W_RADL = 19,
|
||
NAL_IDR_N_LP = 20,
|
||
NAL_CRA_NUT = 21,
|
||
NAL_RSV_IRAP_VCL22 = 22,
|
||
NAL_RSV_IRAP_VCL23 = 23,
|
||
|
||
NAL_VPS = 32,
|
||
NAL_SPS = 33,
|
||
NAL_PPS = 34,
|
||
NAL_AUD = 35,
|
||
NAL_EOS_NUT = 36,
|
||
NAL_EOB_NUT = 37,
|
||
NAL_FD_NUT = 38,
|
||
NAL_SEI_PREFIX = 39,
|
||
NAL_SEI_SUFFIX = 40,
|
||
} NaleType;
|
||
|
||
H265Frame(){
|
||
_codecid = CodecH265;
|
||
}
|
||
|
||
bool keyFrame() const override {
|
||
return isKeyFrame(H265_TYPE(_buffer[_prefix_size]));
|
||
}
|
||
|
||
bool configFrame() const override{
|
||
switch(H265_TYPE(_buffer[_prefix_size])){
|
||
case H265Frame::NAL_VPS:
|
||
case H265Frame::NAL_SPS:
|
||
case H265Frame::NAL_PPS : return true;
|
||
default : return false;
|
||
}
|
||
}
|
||
|
||
static bool isKeyFrame(int type) {
|
||
return type >= NAL_BLA_W_LP && type <= NAL_RSV_IRAP_VCL23;
|
||
}
|
||
};
|
||
|
||
class H265FrameNoCacheAble : public FrameFromPtr {
|
||
public:
|
||
typedef std::shared_ptr<H265FrameNoCacheAble> Ptr;
|
||
|
||
H265FrameNoCacheAble(char *ptr, uint32_t size, uint32_t dts,uint32_t pts, int prefix_size = 4) {
|
||
_ptr = ptr;
|
||
_size = size;
|
||
_dts = dts;
|
||
_pts = pts;
|
||
_prefix_size = prefix_size;
|
||
}
|
||
|
||
CodecId getCodecId() const override {
|
||
return CodecH265;
|
||
}
|
||
|
||
bool keyFrame() const override {
|
||
return H265Frame::isKeyFrame(H265_TYPE(((uint8_t *) _ptr)[_prefix_size]));
|
||
}
|
||
|
||
bool configFrame() const override{
|
||
switch(H265_TYPE(((uint8_t *) _ptr)[_prefix_size])){
|
||
case H265Frame::NAL_VPS:
|
||
case H265Frame::NAL_SPS:
|
||
case H265Frame::NAL_PPS:return true;
|
||
default:return false;
|
||
}
|
||
}
|
||
};
|
||
|
||
typedef FrameInternal<H265FrameNoCacheAble> H265FrameInternal;
|
||
|
||
/**
|
||
* 265视频通道
|
||
*/
|
||
class H265Track : public VideoTrack {
|
||
public:
|
||
typedef std::shared_ptr<H265Track> Ptr;
|
||
|
||
/**
|
||
* 不指定sps pps构造h265类型的媒体
|
||
* 在随后的inputFrame中获取sps pps
|
||
*/
|
||
H265Track() {}
|
||
|
||
/**
|
||
* 构造h265类型的媒体
|
||
* @param vps vps帧数据
|
||
* @param sps sps帧数据
|
||
* @param pps pps帧数据
|
||
* @param vps_prefix_len 265头长度，可以为3个或4个字节，一般为0x00 00 00 01
|
||
* @param sps_prefix_len 265头长度，可以为3个或4个字节，一般为0x00 00 00 01
|
||
* @param pps_prefix_len 265头长度，可以为3个或4个字节，一般为0x00 00 00 01
|
||
*/
|
||
H265Track(const string &vps,const string &sps, const string &pps,int vps_prefix_len = 4, int sps_prefix_len = 4, int pps_prefix_len = 4) {
|
||
_vps = vps.substr(vps_prefix_len);
|
||
_sps = sps.substr(sps_prefix_len);
|
||
_pps = pps.substr(pps_prefix_len);
|
||
onReady();
|
||
}
|
||
|
||
/**
|
||
* 返回不带0x00 00 00 01头的vps
|
||
*/
|
||
const string &getVps() const {
|
||
return _vps;
|
||
}
|
||
|
||
/**
|
||
* 返回不带0x00 00 00 01头的sps
|
||
*/
|
||
const string &getSps() const {
|
||
return _sps;
|
||
}
|
||
|
||
/**
|
||
* 返回不带0x00 00 00 01头的pps
|
||
*/
|
||
const string &getPps() const {
|
||
return _pps;
|
||
}
|
||
|
||
CodecId getCodecId() const override {
|
||
return CodecH265;
|
||
}
|
||
|
||
/**
|
||
* 返回视频高度
|
||
*/
|
||
int getVideoHeight() const override{
|
||
return _height ;
|
||
}
|
||
|
||
/**
|
||
* 返回视频宽度
|
||
*/
|
||
int getVideoWidth() const override{
|
||
return _width;
|
||
}
|
||
|
||
/**
|
||
* 返回视频fps
|
||
*/
|
||
float getVideoFps() const override{
|
||
return _fps;
|
||
}
|
||
|
||
bool ready() override {
|
||
return !_vps.empty() && !_sps.empty() && !_pps.empty();
|
||
}
|
||
|
||
/**
|
||
* 输入数据帧,并获取sps pps
|
||
* @param frame 数据帧
|
||
*/
|
||
void inputFrame(const Frame::Ptr &frame) override{
|
||
int type = H265_TYPE(*((uint8_t *)frame->data() + frame->prefixSize()));
|
||
if(frame->configFrame() || type == H265Frame::NAL_SEI_PREFIX){
|
||
splitH264(frame->data(), frame->size(), frame->prefixSize(), [&](const char *ptr, int len, int prefix){
|
||
H265FrameInternal::Ptr sub_frame = std::make_shared<H265FrameInternal>(frame, (char*)ptr, len, prefix);
|
||
inputFrame_l(sub_frame);
|
||
});
|
||
} else {
|
||
inputFrame_l(frame);
|
||
}
|
||
}
|
||
|
||
private:
|
||
/**
|
||
* 输入数据帧,并获取sps pps
|
||
* @param frame 数据帧
|
||
*/
|
||
void inputFrame_l(const Frame::Ptr &frame) {
|
||
int type = H265_TYPE(((uint8_t *) frame->data() + frame->prefixSize())[0]);
|
||
if (H265Frame::isKeyFrame(type)) {
|
||
insertConfigFrame(frame);
|
||
VideoTrack::inputFrame(frame);
|
||
_last_frame_is_idr = true;
|
||
return;
|
||
}
|
||
|
||
_last_frame_is_idr = false;
|
||
|
||
//非idr帧
|
||
switch (type) {
|
||
case H265Frame::NAL_VPS: {
|
||
//vps
|
||
_vps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
|
||
}
|
||
break;
|
||
|
||
case H265Frame::NAL_SPS: {
|
||
//sps
|
||
_sps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
|
||
}
|
||
break;
|
||
case H265Frame::NAL_PPS: {
|
||
//pps
|
||
_pps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
|
||
}
|
||
break;
|
||
|
||
default: {
|
||
//other frames
|
||
VideoTrack::inputFrame(frame);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* 解析sps获取宽高fps
|
||
*/
|
||
void onReady(){
|
||
getHEVCInfo(_vps, _sps, _width, _height, _fps);
|
||
}
|
||
Track::Ptr clone() override {
|
||
return std::make_shared<std::remove_reference<decltype(*this)>::type>(*this);
|
||
}
|
||
|
||
//生成sdp
|
||
Sdp::Ptr getSdp() override ;
|
||
|
||
//在idr帧前插入vps sps pps帧
|
||
void insertConfigFrame(const Frame::Ptr &frame){
|
||
if(_last_frame_is_idr){
|
||
return;
|
||
}
|
||
if(!_vps.empty()){
|
||
auto vpsFrame = std::make_shared<H265Frame>();
|
||
vpsFrame->_prefix_size = 4;
|
||
vpsFrame->_buffer.assign("\x0\x0\x0\x1", 4);
|
||
vpsFrame->_buffer.append(_vps);
|
||
vpsFrame->_dts = frame->dts();
|
||
VideoTrack::inputFrame(vpsFrame);
|
||
}
|
||
if (!_sps.empty()) {
|
||
auto spsFrame = std::make_shared<H265Frame>();
|
||
spsFrame->_prefix_size = 4;
|
||
spsFrame->_buffer.assign("\x0\x0\x0\x1", 4);
|
||
spsFrame->_buffer.append(_sps);
|
||
spsFrame->_dts = frame->dts();
|
||
VideoTrack::inputFrame(spsFrame);
|
||
}
|
||
|
||
if (!_pps.empty()) {
|
||
auto ppsFrame = std::make_shared<H265Frame>();
|
||
ppsFrame->_prefix_size = 4;
|
||
ppsFrame->_buffer.assign("\x0\x0\x0\x1", 4);
|
||
ppsFrame->_buffer.append(_pps);
|
||
ppsFrame->_dts = frame->dts();
|
||
VideoTrack::inputFrame(ppsFrame);
|
||
}
|
||
}
|
||
private:
|
||
string _vps;
|
||
string _sps;
|
||
string _pps;
|
||
int _width = 0;
|
||
int _height = 0;
|
||
float _fps = 0;
|
||
bool _last_frame_is_idr = false;
|
||
};
|
||
|
||
/**
|
||
* h265类型sdp
|
||
*/
|
||
class H265Sdp : public Sdp {
|
||
public:
|
||
/**
|
||
* 构造函数
|
||
* @param sps 265 sps,不带0x00000001头
|
||
* @param pps 265 pps,不带0x00000001头
|
||
* @param payload_type rtp payload type 默认96
|
||
* @param bitrate 比特率
|
||
*/
|
||
H265Sdp(const string &strVPS,
|
||
const string &strSPS,
|
||
const string &strPPS,
|
||
int payload_type = 96,
|
||
int bitrate = 4000) : Sdp(90000,payload_type) {
|
||
//视频通道
|
||
_printer << "m=video 0 RTP/AVP " << payload_type << "\r\n";
|
||
_printer << "b=AS:" << bitrate << "\r\n";
|
||
_printer << "a=rtpmap:" << payload_type << " H265/" << 90000 << "\r\n";
|
||
_printer << "a=fmtp:" << payload_type << " ";
|
||
_printer << "sprop-vps=";
|
||
_printer << encodeBase64(strVPS) << "; ";
|
||
_printer << "sprop-sps=";
|
||
_printer << encodeBase64(strSPS) << "; ";
|
||
_printer << "sprop-pps=";
|
||
_printer << encodeBase64(strPPS) << "\r\n";
|
||
_printer << "a=control:trackID=" << (int)TrackVideo << "\r\n";
|
||
}
|
||
|
||
string getSdp() const override {
|
||
return _printer;
|
||
}
|
||
|
||
CodecId getCodecId() const override {
|
||
return CodecH265;
|
||
}
|
||
private:
|
||
_StrPrinter _printer;
|
||
};
|
||
|
||
}//namespace mediakit
|
||
#endif //ZLMEDIAKIT_H265_H
|