[FFmpeg-trac] #10121(avcodec:new): jpeg2000 decoder fails on conformance codestream p0_10.j2k
FFmpeg
trac at avcodec.org
Sun Dec 25 23:38:59 EET 2022
#10121: jpeg2000 decoder fails on conformance codestream p0_10.j2k
-------------------------------------+-------------------------------------
Reporter: Pierre- | Type: defect
Anthony Lemieux |
Status: new | Priority: normal
Component: avcodec | Version:
| unspecified
Keywords: jpeg2000 | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
The jpeg2000 decoder fails to accurately decode the p0_10.j2k image from
the [https://gitlab.com/wg1/htj2k-codestreams/-/tree/master/ ISO/ITU
conformance codestream set]:
* the error message `bpno became invalid` is emitted
* there are significant errors in the lower left quadrant when compared to
the reference image `c1p0_10-{1,2,3}.pgx`
A description of the codestream is available at `p0_10syntax.txt`
How to reproduce:
{{{
ffmpeg -flags +bitexact -i p0_10.j2k p0_10.png
ffmpeg version eef763c7057a7f5f4b7dae7855d07b2a6da8b537
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
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Ticket URL: <https://trac.ffmpeg.org/ticket/10121>
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