[FFmpeg-devel] [PATCH] Add a gamma flag to exr loader to avoid banding
Gonzalo Garramuno
ggarra13 at gmail.com
Tue Apr 29 10:20:41 CEST 2014
On 29/04/14 05:14, Carl Eugen Hoyos wrote:
> Is the difference still there if you change the gamma default value to
> 1.0?
Yes. It shows up as -0 and +0. The fate test shows up even if I don't
do any powf() gamma function. It seems half_to_float_full (which I
renamed to exr_half2float) and exr_flt2uint don't return the same
values. It seems a precision issue.
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