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Bug#1051804: marked as done (aom: Autopkgtest regression on s390x with aom v3.7.0)

Your message dated Thu, 12 Oct 2023 07:54:12 -0400
with message-id <7250b38a03737d2f188fed1db2aa2a8be0209fe1.camel@debian.org>
and subject line Re: aom: Autopkgtest regression on s390x with aom v3.7.0
has caused the Debian Bug report #1051804,
regarding aom: Autopkgtest regression on s390x with aom v3.7.0
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
1051804: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051804
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Source: aom
Version: 3.7.0-1~exp1
Severity: serious
Forwarded: https://bugs.chromium.org/p/aomedia/issues/detail?id=3487

Current aom 3.7.0 will raise autopkgtest regression on s390x. The following
commands will raise an error:

    ffmpeg -y -f lavfi -i testsrc=duration=1:size=320x240:rate=30 -pix_fmt yuv420p input.y4m
    aomenc -o encoded.webm input.y4m
    aomdec -o decoded.yuv encoded.webm

the error output of aomdec is as follows:

Warning: Failed to decode frame 1: Corrupt frame detected
Warning: Additional information: Invalid intrabc dv

It is believed to be some endian handling error in the source code, and
the bug is forwarded upstream pending investigation.

Thanks,
Boyuan Yang

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--- End Message ---
--- Begin Message --- 
Version: 3.7.0-1

On Tue, 12 Sep 2023 15:05:11 -0400 Boyuan Yang <byang@debian.org> wrote:
> Source: aom
> Version: 3.7.0-1~exp1
> Severity: serious
> Forwarded: https://bugs.chromium.org/p/aomedia/issues/detail?id=3487
> 
> Current aom 3.7.0 will raise autopkgtest regression on s390x. The following
> commands will raise an error:
> 
>     ffmpeg -y -f lavfi -i testsrc=duration=1:size=320x240:rate=30 -pix_fmt yuv420p input.y4m
>     aomenc -o encoded.webm input.y4m
>     aomdec -o decoded.yuv encoded.webm
> 
> the error output of aomdec is as follows:
> 
> Warning: Failed to decode frame 1: Corrupt frame detected
> Warning: Additional information: Invalid intrabc dv
> 
> It is believed to be some endian handling error in the source code, and
> the bug is forwarded upstream pending investigation.

Some s390x (big-endian) bugs are being tracked and solved upstream. With patches cherry-picked,
at least Debian's autopkgtest is no longer failing. It is known that googletest (which is
not enabled in Debian) still fails, but solving that needs more effort. As a result, closing this
bug report for now.

Thanks,
Boyuan Yang

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