[FFmpeg-user] SSIM filter showing (small) differences in identical(?) streams

[Paul B Mahol]

On Sat, Feb 27, 2021 at 9:37 AM Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:

> Am Sa., 27. Feb. 2021 um 04:53 Uhr schrieb pdr0 <pdr0 at shaw.ca>:
>
> > ffmpeg -framerate 60000/1001 -i lossless.mkv -start_number 0
> > -framerate 60000/1001 -i source/%06d.tif -t 00:01:00 -lavfi
> >
> "[0:v]settb=1/AVTB,setpts=PTS-STARTPTS[main];[1:v]settb=1/AVTB,setpts=PTS-STARTPTS[ref];[main][ref]ssim"
> > -f null -
>
> I suspect you have to remove the first "framerate",
> the mkv demuxer doesn't know this option.
>
> > For the 2nd image sequence png vs. tiff, one is rgb24(pc) , one is rgb24
> .
>
> Iirc, the ssim filter ignores this metadata difference.
>

but not the swscale filter


Full log would show this.


> Carl Eugen
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