ffmpeg修复时间戳

ffmpeg -re -i e:/media/baifa.mp4 -filter_complex "setpts='(RTCTIME - RTCSTART) / (TB * 1000000)'" -vcodec h264 -acodec aac -f hls -hls_list_size 4 -hls_wrap 20 -hls_time 20 d:/demo/hls/cctv13/playlist.m3u8