1log打印 video_thread()函数，每获取一个frame就打印一下log duration=(frame_rate.num&&frame_rate.den?av_q2d((AVRational){frame_rate.den,frame_rate.num}):0);pts=(frame->ptsAV_NOPTS_VALUE)?NAN:frame->ptsav_q2d(tb);printf("videoleepts1:%lf,frame->pts:%llu,tb:(%d,/%d)\n",pts,frame->pts,tb.num,tb....