[FFmpeg-user] Watermark a captured frame..how?

[Lou]

On Sat, Oct 24, 2015, at 07:13 PM, Dani A wrote:
> Hey,
> I would like to capture a frame from a video file and then watermark the
> captured frame with another smaller image to put the watermark on the
> center of the captured frame, what is the command? I could not find this,
> I found watermarking videos only.

You didn't provide many specifics, so here is a generic example:

ffmpeg -ss 30 -i video.mkv -i logo.png -filter_complex
"overlay=(W-w)/2:(H-h)/2" -vframes 1 output.jpg