Catch errors from ffmpeg in bash script

Question

I am trying to make a bashscript to allow mass converting a couple of moviefiles with the help of ffmpeg.

ffmpeg works great alone by itself, but when I run it as shown below - nothing seems to become appended to my logfile. What am I doing wrong?

ffmpeg -i "$input" -c:v mpeg4 -vtag divx -sameq -aspect 16:9 -r 25 "$output" >> ~/Desktop/logfile.txt

Zsolt Botykai · Accepted Answer · 2012-01-16 21:14:06Z

2

Try this instead:

ffmpeg -i "$input" -c:v mpeg4 -vtag divx -sameq -aspect 16:9 -r 25 "$output" > ~/Desktop/logfile.txt  2>&1

It redirect both STDOUT and STDERR. Some bits shorter version is:

ffmpeg -i "$input" -c:v mpeg4 -vtag divx -sameq -aspect 16:9 -r 25 "$output" &>> ~/Desktop/logfile.txt

answered Jan 16, 2012 at 21:14

Zsolt Botykai

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