I'm trying to create looping apng files from mkvs. My problem is that they don't loop. The files play once, but stop.
This is what I'm doing:
ffmpeg -ss 16:43 -i ./10.mkv -loop 10 -t 1 -filter:v "setpts=PTS-STARTPTS, crop=1200:800, hqdn3d=1.5:1.5:6:6, scale=600:400" 10-file-2.apng
I've tried -loop -1 -loop 10 -loop 1 but there is no looping done. My version is
ffmpeg-3.3.el_capitan.bottle.tar.gz
The parameters for looping APNGs is plays.
ffmpeg -ss 16:43 -i ./10.mkv -plays 10 -t 1 -vf "setpts=PTS-STARTPTS, crop=1200:800, hqdn3d=1.5:1.5:6:6, scale=600:400" 10-file-2.apng
来源：https://stackoverflow.com/questions/43795518/using-ffmpeg-to-create-looping-apng