[FFmpeg-user] scene cut doesn't output to image?

[Nicolas George]

Le duodi 22 fructidor, an CCXX, Roger Pack a écrit :
> However, a user pointed out [1] that if you try and extract
> "thumbnails" one per scene, using the same filter, it seems to create
> "the normal number" of image files, but each is a duplicate of the
> first frame in that scene:
> 
> $ ffmpeg -i sintel.mpg -vf select="gt(scene\,0.4)" preview%04d.png
> 
> Anybody know what I'm doing wrong here?

This is starting to become a FAQ: images do not have timestamp, so ffmpeg
duplicates them to accommodate the frame rate. You need to change the vsync
method to avoid that.

Regards,

-- 
  Nicolas George
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