[FFmpeg-devel] ICC version checks

[Thilo Borgmann]

Am 10.03.10 00:28, schrieb Carl Eugen Hoyos:
> Thilo Borgmann <thilo.borgmann <at> googlemail.com> writes:
> 
>>> I believe this is the issue that people are talking about:
>>> http://fate.multimedia.cx/index.php?build_record=197754
>>
>> That is at least what I'm talking about, but a "decode_var_block_data()"
>> sounds different...
> 
> icc 11.1 64 bit miscompiles vc1_mc_4mv_chroma() in vc1dec.c (all optimisations,
> this is Intel issue 556938) and decode_var_block_data() in alsdec.c (only for
> -O3, not yet reported to Intel).

Miscompiles? So maybe there's a suitable workaround?

What exactly is miscompiled in decode_var_block_data(), do you know
that? Each hint that saves time on this will raise the chance that I can
spare an hour to have a look at.

-Thilo