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for h264/h265 judge a frame start more safe(h264 is first_mb_in_slice h265 is first_slice_segment_in_pic_flag) and for h265 only idr is key frame

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xgj
2021-06-18 12:40:42 +08:00
parent 3429690d75
commit a6e9652da8
4 changed files with 12 additions and 8 deletions
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9
src/Extension/Frame.cpp
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@@ -192,7 +192,7 @@ bool FrameMerger::willFlush(const Frame::Ptr &frame) const{
switch (frame->getCodecId()) {
case CodecH264 : {
auto type = H264_TYPE(frame->data()[frame->prefixSize()]);
if (frame->data()[frame->prefixSize()+1]&0x80 !=0 && type >=H264Frame::NAL_B_P && type<=H264Frame::NAL_IDR ) {// sei aud pps sps 不判断
if ((frame->data()[frame->prefixSize()+1]&0x80) !=0 && type >=H264Frame::NAL_B_P && type<=H264Frame::NAL_IDR ) {// sei aud pps sps 不判断
//264 新一帧的开始，刷新输出
return true;
}else{
@@ -202,9 +202,12 @@ bool FrameMerger::willFlush(const Frame::Ptr &frame) const{
break;
}
case CodecH265 : {
if (H265_TYPE(frame->data()[frame->prefixSize()]) == H265Frame::NAL_TRAIL_R) {
//如果是265的TRAIL_R帧，那么也刷新输出
auto type = H265_TYPE(frame->data()[frame->prefixSize()]);
if ((type>=H265Frame::NAL_TRAIL_R &&type<= H265Frame::NAL_RSV_IRAP_VCL23) && ( (frame->data()[frame->prefixSize()+2]>>7 & 0x01) != 0)) {
//first_slice_segment_in_pic_flag is frame start
return true;
}else{
return false;
}
break;
}