On Fri, 9 Jul 2021 10:10:11 +0100, Christian Ebert <bcc@phloxic.productions> wrote:
>> However, the grep command does the same (nothing) in both cases! > >ffmpeg writes the log output to stderr, so redirect it to stdout: > >ffmpeg -i bluearrow.mp4 -vf "freezedetect=n=0.01:d=5" -map 0:v:0 -f null - >2>&1 | grep -q 'lavfi.freezedetect.freeze_start: ' I ran this: ffmpeg -hide_banner -i bluearrow.mp4 -vf "freezedetect=n=0.01:d=5" -map 0:v:0 -f null - 2>&1 > freezeoutput.txt And the freezeoutput.txts still empty... -- Bo Berglund Developer in Sweden _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".