[FFmpeg-user] AVERROR code on avfilter_graph_config

Clément Bœsch ubitux at gmail.com
Wed Feb 15 07:38:12 CET 2012

On Tue, Feb 14, 2012 at 09:08:23PM -0800, killkenny64 wrote:
> killkenny64 wrote
> > 
> > What is wrong with "movie=logo.png [logo];[in][logo]
> > overlay=10:main_h-overlay_h-10 [out]"?
> > 
> This is driving me crazy, I can't seem to use the movie source in any way at
> all,
> Trying to overlay one video on another doesn't work either:
> "movie=overlay.mp4 [movie]; [in] [movie] overlay=720:480 [out]"
> I still get AVERROR -22
> Maybe I'm setting up the filterchain wrong, I just followed filtering.c, but
> I can get other filters to work, just not when using the movie source

This is not the API mailing list, you should post on

BTW, maybe you should share your code too. Just a guess, are you sure
"[in]" and "[out]" are correctly linked to your inputs and outputs? As
usual, you may want to compare with ffmpeg.c too.


Clément B.
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