多个片段合并成一个:
ffmpeg -i a.flv \
-vf "select='between(t,0,34)+between(t,170,177)+between(t,400,465)+between(t,475,603)',
setpts=N/FRAME_RATE/TB" \
-af "aselect='between(t,0,34)+between(t,170,177)+between(t,400,465)+between(t,475,603)',
asetpts=N/SR/TB" out.flv
标签:ffmpeg,603,34,between,177,工具,170
From: https://www.cnblogs.com/pencilCool/p/17298139.html