[FFmpeg-user] Speed up AND resize?

Gilles codecomplete at free.fr
Sun Jan 8 14:46:46 EET 2023


I'd like to speed up a video by 10%, AND resize it at the same time from 
its original 1280x720 to 720:-1 (ie. 404).

The following command does speed up the file, but its size remains at 

ffmpeg -i input.mp4 -b:v 300k -vf 
"setpts=(PTS-STARTPTS)/1.1,scale=-720:-1" -af atempo=1.1 -c:a aac -b:a 
64k -ac 2 -ar 44100 -threads 2 -f mp4 output.mp4

I tried using a semi-column instead of a comma to separate the two 
parameters in vf, but ffmpeg doesn't accept it.

Thank you.

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