[FFmpeg-trac] #4829(swscale:open): Overflows (?) in xyz -> rgb conversion
FFmpeg
trac at avcodec.org
Wed Jun 15 23:42:07 EEST 2022
#4829: Overflows (?) in xyz -> rgb conversion
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Reporter: Carl Eugen | Owner: (none)
Hoyos |
Type: defect | Status: open
Priority: normal | Component: swscale
Version: git-master | Resolution:
Keywords: xyz | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by Balling):
>has off-by-one error somewhere that breaks every 32 byte if you compare
in hex diff
I learnt that lossy jpeg 2000 is not required to be decoded bitperfectly
by the standard itself with different jpeg 2000 decoders, in fact that is
the case with kakadu vs openjpeg vs our jpeg2000. Sigh. Faceplam.
https://github.com/uclouvain/openjpeg/issues/1420
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Ticket URL: <https://trac.ffmpeg.org/ticket/4829#comment:6>
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