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优化多slice情况下关键帧判断逻辑

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This commit is contained in:
xia-chu 2021-04-15 19:37:13 +08:00
parent e00fe51b26
commit 9d385b36fd
1 changed files with 5 additions and 6 deletions
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11
src/Extension/H264.cpp
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@ -181,17 +181,15 @@ void H264Track::inputFrame_l(const Frame::Ptr &frame){
_pps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
break;
}
case H264Frame::NAL_IDR: {
insertConfigFrame(frame);
VideoTrack::inputFrame(frame);
break;
}
case H264Frame::NAL_AUD: {
//忽略AUD帧;
break;
}
default:
if (frame->keyFrame()) {
insertConfigFrame(frame);
}
VideoTrack::inputFrame(frame);
break;
}
@ -281,7 +279,8 @@ Sdp::Ptr H264Track::getSdp() {
////////////////////////////////////////////////////////////////////////////////////////////////////
bool H264Frame::keyFrame() const {
return H264_TYPE(_buffer[_prefix_size]) == H264Frame::NAL_IDR;
//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
return H264_TYPE(_buffer[_prefix_size]) == H264Frame::NAL_IDR && (_buffer[_prefix_size + 1] & 0x80);
}
bool H264Frame::configFrame() const {