[FFmpeg-user] Overwriting JPEG at output

[Carl Eugen Hoyos]

Jose Luis Rivas <joseluis <at> eserre.com> writes:

> I'm trying to get an AVI trough RTSP (or any input, really, be it a
> static video, by e.g.) to output a still JPEG, and this been
> overwritten. This is a line of what I'm trying and what I've already tried:

> ffmpeg -i test.webm -r 1 -f image2 -s qvga what.jpg

This works now with -updatefirst 1 what.jpg

Carl Eugen