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xzl
2017-04-01 16:35:56 +08:00
parent aef0ecbcb9
commit 3f73024a9b
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85
src/RTP/RtpMaker.h Normal file
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/*
* RtpMaker.h
*
* Created on: 2016年8月12日
* Author: xzl
*/
#ifndef RTP_RTPMAKER_H_
#define RTP_RTPMAKER_H_
#include "Rtsp/RtspMediaSource.h"
#include "Util/ResourcePool.h"
#include "Util/logger.h"
#include "Util/RingBuffer.hpp"
#include "Util/TimeTicker.h"
#include "Thread/ThreadPool.hpp"
using namespace ZL::Util;
using namespace ZL::Thread;
namespace ZL {
namespace Rtsp {
class RtpMaker {
public:
typedef function<void(const RtpPacket::Ptr &pPkt, bool bKeyPos)> onGetRTP;
RtpMaker(const onGetRTP &cb, uint32_t ui32Ssrc, int iMtuSize,int iSampleRate,
uint8_t ui8PlayloadType, uint8_t ui8Interleaved) {
callBack = cb;
m_ui32Ssrc = ui32Ssrc;
m_ui32SampleRate = iSampleRate;
m_iMtuSize = iMtuSize;
m_ui8PlayloadType = ui8PlayloadType;
m_ui8Interleaved = ui8Interleaved;
}
virtual ~RtpMaker() {
}
virtual void makeRtp(const char *pcData, int iDataLen, uint32_t uiStamp)=0;
int getInterleaved() const {
return m_ui8Interleaved;
}
int getPlayloadType() const {
return m_ui8PlayloadType;
}
int getSampleRate() const {
return m_ui32SampleRate;
}
uint32_t getSsrc() const {
return m_ui32Ssrc;
}
uint16_t getSeqence() const {
return m_ui16Sequence;
}
uint32_t getTimestamp() const {
return m_ui32TimeStamp;
}
protected:
uint32_t m_ui32Ssrc;
uint32_t m_ui32SampleRate;
int m_iMtuSize;
uint8_t m_ui8PlayloadType;
uint8_t m_ui8Interleaved;
uint16_t m_ui16Sequence = 0;
uint32_t m_ui32TimeStamp = 0;
virtual void onMakeRtp(const RtpPacket::Ptr &pkt, bool bKeyPos = true) {
callBack(pkt, bKeyPos);
}
inline RtpPacket::Ptr obtainPkt() {
return m_pktPool.obtain();
}
private:
RtspMediaSource::PoolType m_pktPool;
onGetRTP callBack;
};
} /* namespace RTP */
} /* namespace ZL */
#endif /* RTP_RTPMAKER_H_ */

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src/RTP/RtpMakerAAC.cpp Normal file
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/*
* RtpMakerAAC.cpp
*
* Created on: 2016年8月12日
* Author: xzl
*/
#include <netinet/in.h>
#include "RtpMakerAAC.h"
#include "config.h"
#include "Util/mini.hpp"
using namespace ZL::Util;
namespace ZL {
namespace Rtsp {
void RtpMaker_AAC::makeRtp(const char *pcData, int iLen, uint32_t uiStamp) {
static uint32_t cycleMS = mINI::Instance()[Config::Rtp::kCycleMS].as<uint32_t>();
uiStamp %= cycleMS;
char *ptr = (char *) pcData;
int iSize = iLen;
while (iSize > 0 ) {
if (iSize <= m_iMtuSize - 20) {
m_aucSectionBuf[0] = 0;
m_aucSectionBuf[1] = 16;
m_aucSectionBuf[2] = iLen >> 5;
m_aucSectionBuf[3] = (iLen & 0x1F) << 3;
memcpy(m_aucSectionBuf + 4, ptr, iSize);
makeAACRtp(m_aucSectionBuf, iSize + 4, true, uiStamp);
break;
}
m_aucSectionBuf[0] = 0;
m_aucSectionBuf[1] = 16;
m_aucSectionBuf[2] = (iLen) >> 5;
m_aucSectionBuf[3] = (iLen & 0x1F) << 3;
memcpy(m_aucSectionBuf + 4, ptr, m_iMtuSize - 20);
makeAACRtp(m_aucSectionBuf, m_iMtuSize - 16, false, uiStamp);
ptr += (m_iMtuSize - 20);
iSize -= (m_iMtuSize - 20);
}
}
inline void RtpMaker_AAC::makeAACRtp(const void *pData, unsigned int uiLen, bool bMark, uint32_t uiStamp) {
uint16_t u16RtpLen = uiLen + 12;
m_ui32TimeStamp = (m_ui32SampleRate / 1000) * uiStamp;
uint32_t ts = htonl(m_ui32TimeStamp);
uint16_t sq = htons(m_ui16Sequence);
uint32_t sc = htonl(m_ui32Ssrc);
auto pRtppkt = obtainPkt();
auto &rtppkt = *(pRtppkt.get());
unsigned char *pucRtp = rtppkt.payload;
pucRtp[0] = '$';
pucRtp[1] = m_ui8Interleaved;
pucRtp[2] = u16RtpLen >> 8;
pucRtp[3] = u16RtpLen & 0x00FF;
pucRtp[4] = 0x80;
pucRtp[5] = (bMark << 7) | m_ui8PlayloadType;
memcpy(&pucRtp[6], &sq, 2);
memcpy(&pucRtp[8], &ts, 4);
//ssrc
memcpy(&pucRtp[12], &sc, 4);
memcpy(&pucRtp[16], pData, uiLen);
rtppkt.PT = m_ui8PlayloadType;
rtppkt.interleaved = m_ui8Interleaved;
rtppkt.mark = bMark;
rtppkt.length = uiLen + 16;
rtppkt.sequence = m_ui16Sequence;
rtppkt.timeStamp = m_ui32TimeStamp;
rtppkt.ssrc = m_ui32Ssrc;
rtppkt.type = TrackAudio;
memcpy(rtppkt.payload + 16, pData, uiLen);
onMakeRtp(pRtppkt, false);
m_ui16Sequence++;
}
} /* namespace RTP */
} /* namespace ZL */

42
src/RTP/RtpMakerAAC.h Normal file
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/*
* RtpMakerAAC.h
*
* Created on: 2016年8月12日
* Author: xzl
*/
#ifndef RTP_RTPMAKERAAC_H_
#define RTP_RTPMAKERAAC_H_
#include "Rtsp/RtspMediaSource.h"
#include "Util/logger.h"
#include "Util/RingBuffer.hpp"
#include "RtpMaker.h"
#include <memory>
#include "Util/ResourcePool.h"
using namespace std;
using namespace ZL::Util;
namespace ZL {
namespace Rtsp {
class RtpMaker_AAC: public RtpMaker {
public:
typedef std::shared_ptr<RtpMaker_AAC> Ptr;
RtpMaker_AAC(const onGetRTP &cb,
uint32_t ui32Ssrc, int iMtuSize , int iSampleRate, uint8_t ui8PlayloadType = 97,
uint8_t ui8Interleaved = 2) :
RtpMaker(cb, ui32Ssrc, iMtuSize,iSampleRate, ui8PlayloadType, ui8Interleaved) {
}
virtual ~RtpMaker_AAC() {
}
void makeRtp(const char *pcData, int iDataLen, uint32_t uiStamp) override;
private:
inline void makeAACRtp(const void *pData, unsigned int uiLen, bool bMark, uint32_t uiStamp);
unsigned char m_aucSectionBuf[1600];
};
} /* namespace RTP */
} /* namespace ZL */
#endif /* RTP_RTPMAKERAAC_H_ */

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src/RTP/RtpMakerH264.cpp Normal file
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/*
* RtpMakerH264.cpp
*
* Created on: 2016年8月12日
* Author: xzl
*/
#include <netinet/in.h>
#include "RtpMakerH264.h"
#include "config.h"
#include "Util/mini.hpp"
using namespace ZL::Util;
namespace ZL {
namespace Rtsp {
void RtpMaker_H264::makeRtp(const char* pcData, int iLen, uint32_t uiStamp) {
static uint32_t cycleMS = mINI::Instance()[Config::Rtp::kCycleMS].as<uint32_t>();
uiStamp %= cycleMS;
int iSize = m_iMtuSize - 2;
if (iLen > iSize) { //超过MTU
const unsigned char s_e_r_Start = 0x80;
const unsigned char s_e_r_Mid = 0x00;
const unsigned char s_e_r_End = 0x40;
//获取帧头数据，1byte
unsigned char naluType = *((unsigned char *) pcData) & 0x1f; //获取NALU的5bit 帧类型
unsigned char nal_ref_idc = *((unsigned char *) pcData) & 0x60; //获取NALU的2bit 帧重要程度 00 可以丢 11不能丢
//nal_ref_idc = 0x60;
//组装FU-A帧头数据 2byte
unsigned char f_nri_type = nal_ref_idc + 28;//F为0 1bit,nri上面获取到2bit,28为FU-A分片类型5bit
unsigned char s_e_r_type = naluType;
bool bFirst = true;
bool mark = false;
int nOffset = 1;
while (!mark) {
if (iLen < nOffset + iSize) { //是否拆分结束
iSize = iLen - nOffset;
mark = true;
s_e_r_type = s_e_r_End + naluType;
} else {
if (bFirst == true) {
s_e_r_type = s_e_r_Start + naluType;
bFirst = false;
} else {
s_e_r_type = s_e_r_Mid + naluType;
}
}
memcpy(aucSectionBuf, &f_nri_type, 1);
memcpy(aucSectionBuf + 1, &s_e_r_type, 1);
memcpy(aucSectionBuf + 2, (unsigned char *) pcData + nOffset, iSize);
nOffset += iSize;
makeH264Rtp(aucSectionBuf, iSize + 2, mark, uiStamp);
}
} else {
makeH264Rtp(pcData, iLen, true, uiStamp);
}
}
inline void RtpMaker_H264::makeH264Rtp(const void* data, unsigned int len, bool mark, uint32_t uiStamp) {
uint16_t ui16RtpLen = len + 12;
m_ui32TimeStamp = (m_ui32SampleRate / 1000) * uiStamp;
uint32_t ts = htonl(m_ui32TimeStamp);
uint16_t sq = htons(m_ui16Sequence);
uint32_t sc = htonl(m_ui32Ssrc);
auto pRtppkt = obtainPkt();
auto &rtppkt = *(pRtppkt.get());
unsigned char *pucRtp = rtppkt.payload;
pucRtp[0] = '$';
pucRtp[1] = m_ui8Interleaved;
pucRtp[2] = ui16RtpLen >> 8;
pucRtp[3] = ui16RtpLen & 0x00FF;
pucRtp[4] = 0x80;
pucRtp[5] = (mark << 7) | m_ui8PlayloadType;
memcpy(&pucRtp[6], &sq, 2);
memcpy(&pucRtp[8], &ts, 4);
//ssrc
memcpy(&pucRtp[12], &sc, 4);
memcpy(&pucRtp[16], data, len);
rtppkt.PT = m_ui8PlayloadType;
rtppkt.interleaved = m_ui8Interleaved;
rtppkt.mark = mark;
rtppkt.length = len + 16;
rtppkt.sequence = m_ui16Sequence;
rtppkt.timeStamp = m_ui32TimeStamp;
rtppkt.ssrc = m_ui32Ssrc;
rtppkt.type = TrackVideo;
uint8_t type = ((uint8_t *) (data))[0] & 0x1F;
memcpy(rtppkt.payload + 16, data, len);
onMakeRtp(pRtppkt, type == 5);
m_ui16Sequence++;
//InfoL<<timeStamp<<" "<<time<<" "<<sampleRate;
}
} /* namespace RTP */
} /* namespace ZL */

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src/RTP/RtpMakerH264.h Normal file
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/*
* RtpMakerH264.h
*
* Created on: 2016年8月12日
* Author: xzl
*/
#ifndef RTP_RTPMAKERH264_H_
#define RTP_RTPMAKERH264_H_
#include "Rtsp/RtspMediaSource.h"
#include "Util/logger.h"
#include "Util/RingBuffer.hpp"
#include "RtpMaker.h"
#include <memory>
using namespace std;
using namespace ZL::Util;
using namespace ZL::Rtsp;
namespace ZL {
namespace Rtsp {
class RtpMaker_H264: public RtpMaker {
public:
typedef std::shared_ptr<RtpMaker_H264> Ptr;
RtpMaker_H264(const onGetRTP &cb, uint32_t ui32Ssrc,int iMtuSize = 1400,int iSampleRate = 90000,
uint8_t ui8PlayloadType = 96, uint8_t ui8Interleaved = 0) :
RtpMaker(cb, ui32Ssrc, iMtuSize,iSampleRate, ui8PlayloadType, ui8Interleaved) {
}
virtual ~RtpMaker_H264() {
}
void makeRtp(const char *pcData, int iDataLen, uint32_t uiStamp) override;
private:
inline void makeH264Rtp(const void *pData, unsigned int uiLen, bool bMark, uint32_t uiStamp);
unsigned char aucSectionBuf[1600];
};
} /* namespace RTP */
} /* namespace ZL */
#endif /* RTP_RTPMAKERH264_H_ */