[FFmpeg-user] cannot seek into png 'video'

Carl Eugen Hoyos ceffmpeg at gmail.com
Tue Oct 1 14:08:36 EEST 2019

Am Di., 1. Okt. 2019 um 02:56 Uhr schrieb Thorsten von Eicken
<tve at voneicken.com>:

> ffmpeg -i 20190928_155656_stab.mp4 -framerate 1 -c:v png -i overlay.png \
>      -filter_complex "[0:v]setpts=PTS-STARTPTS[top];
> [1:v]setpts=PTS-STARTPTS[bottom];
> [top][bottom]overlay=x=(W-w)/2:eof_action=pass" \
>      -acodec aac -vcodec libx264 final.mp4
> If I'd now like to skip the first 10 seconds of the overlay in order to
> line up the timing better I try to use:
> ffmpeg -i 20190928_155656_stab.mp4 -framerate 1 -ss 10 -c:v png -i
> overlay.png ...

(Complete, uncut console output missing.)

I believe you are searching for "-loop 1", I don't think stream_loop
works here.

Carl Eugen

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