[FFmpeg-user] insert a logo with transparency
guerra.rossana at gmail.com
Mon Jun 25 21:33:49 CEST 2012
2012/6/25 Stefano Sabatini <stefasab at gmail.com>
> On date Sunday 2012-06-24 23:39:21 -0300, Rossana Guerra encoded:
> > Well I installed the FFmpeg version for Ubuntu 12.04 (not the fork, the
> > "actual")
> > Now it seems I have problems to insert logo, there's a syntax error, I
> > can't realize what according to FFmpeg documentation.
> > I appreciate any help.
> > // The command to insert the logo.
> > usuario at pangolin:~/Vídeos/Xelestina$ ffmpeg -loglevel error -i
> > -vf "movie=logo2.bmp [logo]; [in][logo] overlay=W-w-10:10:1[out]" -vcodec
> > libx264 -b 1400k outlogo30.avi >> logerror.txt
> > [overlay @ 0x1f6dd20] Missing key or no key/value separator found after
> > '1'
> > Error initializing filter 'overlay' with args 'W-w-10:10:1'
> > Error opening filters!
> Syntax is: x_expression:y_expression:named_options
> You're specifying a third value, which is confusing the parser which
> interprets that "1" like it is the name of an option followed by no
> In other words you want:
> I don't know what the trailing ":1" is meant for.
Thanks Stefano, maybe it was something related to the Fmmpeg fork syntax.
It was to set the alpha level. In the fork version it works in that way.
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