For loop ffmpeg

Question

Can someone help me creating a for loop for mutiple video files in directory structure

ffmpeg -i input.mp4 -c:v libx265 -c:a copy -x265-params crf=25 ouput.mp4

This works good for one video, but I'm lost how to do this in batch for multiple files

Answer 1

This will work for all files that end in ".mp4" in the current directory. The command will output to new-filename.mp4 for each file. For example, if your file is video1.mp4, it will output a new file named new-video1.mp4

for i in *.mp4; do ffmpeg -i "$i" -c:v libx265 -c:a copy -x265-params crf=25 new-"$i"; done

Note:

• the first part for i in *.mp4 needs to be unquoted.

• subsequent references to the variable $i should be quoted.

• don't forget done at the end

• if you need to work recursively, the loop would need to be more complex