[FFmpeg-devel] [PATCH] Add a gamma flag to exr loader to avoid banding

Gonzalo Garramuno ggarra13 at gmail.com
Mon May 5 02:16:50 CEST 2014

On 03/05/14 23:45, Michael Niedermayer wrote:
> On Sat, May 03, 2014 at 05:22:15PM -0300, Gonzalo Garramuno wrote:
>> On 02/05/14 19:54, Michael Niedermayer wrote:
>>> still fails
>>> both on x86_64 as well as arm32, it also fails differently on both
>>> gamma_table differs between the 2
>>> first difference is at index 256, where one is 0 and the other 1
>>> last difference is at index 1023
>> I reverted to the previous patch that kept the negative values and I
>> am attaching it again without any changes.
>> However, I am puzzled it fails on x86_64 as that's exactly the
>> architecture I am developing on.  Are you trying it on Windows or
>> FreeBSD?  I am running it on Ubuntu without problems on gcc4.7.
> ubuntu gcc 4.6.3
Is there an easy way to set the compiler for ffmpeg?  I tried export 
CC=gcc-4.6 before configure and that did not work.
I found out I have almost the same offending compiler (4.6.4) and wanted 
to see if I could reproduce fate failing.

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