[FFmpeg-devel] ALAC regression test

[Jai Menon]

Hi,

On Wed, Jan 7, 2009 at 1:00 PM, Mike Melanson <mike at multimedia.cx> wrote:
> Mike Melanson wrote:
>> Jai Menon wrote:
>>> Yes it is. I dunno what the problem could be. Maybe you could try and
>>> generate the regression reference
>>> on one of your machines and then check if that remains consistent
>>> across platforms. As I said, my build and
>>> test environment isn't really sane right now :-)
>>
>> I'm still working this. It turns out that my RPC test tool prefers
>> operating on formats that don't require seekable output.
>
> Nevermind; I just thought of a solution. Short story: x86_64 (Linux/Mac)
> disagree with x86_32 & PPC (Linux/Mac). Full test:
>
> ./tools/rpc-dist-test.py "{MD5} FFMPEG -y -flags +bitexact -dct fastint
> -idct simple -ab 128k -ac 2 -f s16le -i
> SAMPLES_PATH/ffmpeg-synthetic/asynth1.sw -acodec alac output.m4a &&
> /bin/cat output.m4a"
>
> 1 configuration(s) failed
>   configuration Mac OS X / x86_32 / gcc 4.0.1 returned status 133
>
> There were 2 unique stdout blobs collected
>
> The following configurations agree on the same stdout:
>   Linux / x86_64 / gcc 4.0.4
>   Linux / x86_64 / gcc 4.1.2
>   Linux / x86_64 / gcc 4.2.4
>   Linux / x86_64 / gcc 4.3.2
>   Linux / x86_64 / gcc svn
>   Mac OS X / x86_64 / gcc 4.0.1
> stdout:
> 1e3170eff48f12f46346ea5636edd874
>
> The following configurations agree on the same stdout:
>   Linux / x86_32 / icc
>   Linux / x86_32 / gcc 2.95.3
>   Linux / x86_32 / gcc 3.4.6
>   Linux / x86_32 / gcc 4.0.4
>   Linux / x86_32 / gcc 4.1.2
>   Linux / x86_32 / gcc 4.2.4
>   Linux / x86_32 / gcc 4.3.2
>   Linux / x86_32 / gcc svn
>   Linux / PPC / gcc 4.0.4
>   Linux / PPC / gcc 4.1.2
>   Linux / PPC / gcc 4.2.4
>   Linux / PPC / gcc 4.3.2
>   Linux / PPC / gcc svn
>   Mac OS X / PPC / gcc 4.0.1
> stdout:
> bb18cfa2bac6c3bc2c751901834c0492

The regression fails on 64 bit machines. It could be related to the
fix for issue 636, for which I just posted a revised patch.
I think that should fix this issue as well.

-- 
Regards,

Jai