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xgj 2021-04-15 14:08:25 +08:00
parent bffee09639
commit 3150ccdb70
1 changed files with 2 additions and 1 deletions
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3
src/Extension/H264Rtp.cpp
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@ -207,7 +207,7 @@ void H264RtpEncoder::inputFrame(const Frame::Ptr &frame) {
_last_frame = frame;
return;
}
// 上一帧打包，保证rtp 的mark是正确的
bool isMark = _last_frame->pts() != frame->pts();
ptr = _last_frame->data() + _last_frame->prefixSize();
len = _last_frame->size() - _last_frame->prefixSize();
@ -216,6 +216,7 @@ void H264RtpEncoder::inputFrame(const Frame::Ptr &frame) {
if(nal_type == H264Frame::NAL_IDR && (ptr[1]&0x80))
{// 保证每一个I帧前都有SPS与PPS ,为了兼容webrtc 需要在一个rtp包中，并且只能是 STAP-A
// https://blog.csdn.net/momo0853/article/details/88872873
// 多slice 一帧的情况下检查 first_mb_in_slice 是否为0 表示其为一帧的开始，SPS PPS 只有在帧开始时，才插入
auto rtp = makeRtp(getTrackType(), nullptr,_sps.size()+_pps.size()+2*2+1,false,pts);
uint8_t *payload = rtp->getPayload();
payload[0] = 24;