#9781: zscale adds distortion when resampling video data
-------------------------------------+-------------------------------------
Reporter: Llyw | Owner: (none)
Type: defect | Status: reopened
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: zscale | Blocked By:
distortion |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Changes (by Llyw):
* status: closed => reopened
* resolution: invalid =>
Comment:
I do not understand how that is invalid. The PNGs are screenshots of VLC,
where I used the advance-by-1-frame option to forward to the same frame in
all three files before taking the screenshot.
If you don't feel like taking the screenshots seriously, at least try my
reproducer command using the `zscale` filter and compare the git-master
and 5.0.1 output. The difference will be immediately apparent. You are
also free to try any other input, but it did take me several hours to come
up with an easy enough reproducer so I must ask you to put at least some
effort into this.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9781#comment:3>
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