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提炼rtp打包代码

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This commit is contained in:
xiongziliang
2018-10-31 09:36:12 +08:00
parent addf90b88a
commit 53ba766c2a
6 changed files with 80 additions and 108 deletions
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44
src/RtspMuxer/H264RtpCodec.cpp
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@@ -184,6 +184,7 @@ void H264RtpEncoder::inputFrame(const Frame::Ptr &frame) {
auto pcData = frame->data() + frame->prefixSize();
auto uiStamp = frame->stamp();
auto iLen = frame->size() - frame->prefixSize();
unsigned char naluType = H264_TYPE(pcData[0]); //获取NALU的5bit 帧类型
uiStamp %= cycleMS;
int iSize = _ui32MtuSize - 2;
@@ -192,8 +193,6 @@ void H264RtpEncoder::inputFrame(const Frame::Ptr &frame) {
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 = H264_TYPE(pcData[0]); //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
@@ -219,48 +218,15 @@ void H264RtpEncoder::inputFrame(const Frame::Ptr &frame) {
memcpy(_aucSectionBuf + 1, &s_e_r_type, 1);
memcpy(_aucSectionBuf + 2, (unsigned char *) pcData + nOffset, iSize);
nOffset += iSize;
makeH264Rtp(_aucSectionBuf, iSize + 2, mark, uiStamp);
makeH264Rtp(naluType,_aucSectionBuf, iSize + 2, mark, uiStamp);
}
} else {
makeH264Rtp(pcData, iLen, true, uiStamp);
makeH264Rtp(naluType,pcData, iLen, true, uiStamp);
}
}
void H264RtpEncoder::makeH264Rtp(const void* data, unsigned int len, bool mark, uint32_t uiStamp) {
uint16_t ui16RtpLen = len + 12;
uint32_t ts = htonl((_ui32SampleRate / 1000) * uiStamp);
uint16_t sq = htons(_ui16Sequence);
uint32_t sc = htonl(_ui32Ssrc);
auto rtppkt = ResourcePoolHelper<RtpPacket>::obtainObj();
unsigned char *pucRtp = rtppkt->payload;
pucRtp[0] = '$';
pucRtp[1] = _ui8Interleaved;
pucRtp[2] = ui16RtpLen >> 8;
pucRtp[3] = ui16RtpLen & 0x00FF;
pucRtp[4] = 0x80;
pucRtp[5] = (mark << 7) | _ui8PlayloadType;
memcpy(&pucRtp[6], &sq, 2);
memcpy(&pucRtp[8], &ts, 4);
//ssrc
memcpy(&pucRtp[12], &sc, 4);
//playload
memcpy(&pucRtp[16], data, len);
rtppkt->PT = _ui8PlayloadType;
rtppkt->interleaved = _ui8Interleaved;
rtppkt->mark = mark;
rtppkt->length = len + 16;
rtppkt->sequence = _ui16Sequence;
rtppkt->timeStamp = uiStamp;
rtppkt->ssrc = _ui32Ssrc;
rtppkt->type = TrackVideo;
rtppkt->offset = 16;
uint8_t type = H264_TYPE(((uint8_t *) (data))[0]);
RtpCodec::inputRtp(rtppkt,type == H264Frame::NAL_SPS);
_ui16Sequence++;
_ui32TimeStamp = uiStamp;
void H264RtpEncoder::makeH264Rtp(int nal_type,const void* data, unsigned int len, bool mark, uint32_t uiStamp) {
RtpCodec::inputRtp(makeRtp(getTrackType(),data,len,mark,uiStamp),nal_type == H264Frame::NAL_SPS);
}
}//namespace mediakit