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

[Gonzalo Garramuno]

On 28/04/14 21:01, Michael Niedermayer wrote:
> On Mon, Apr 28, 2014 at 08:21:03PM -0300, Gonzalo Garramuno wrote:
>> On 28/04/14 17:10, Michael Niedermayer wrote:
>>> On Mon, Apr 28, 2014 at 09:19:07PM +0200, Reimar Döffinger wrote:
>>>
>>>>> patience
>> I apologize for being so impatient.  Sorry.
>>>>> First it seems to still have a bug
>>>>> it fails fate
>>>>> --- ./tests/ref/fate/exr-slice-raw      2014-04-28 04:14:37.849375679 +0200
>>>>> +++ tests/data/fate/exr-slice-raw       2014-04-28 19:50:27.430558597 +0200
>>>>> @@ -1,2 +1,2 @@
>>>>> #tb 0: 1/25
>>>>> -0,          0,          0,        1,  3169800, 0x6a356d0d
>>>>> +0,          0,          0,        1,  3169800, 0x2cfefd25
>> I am stuck with this bug.  Not sure exactly what the numbers mean in
>> the first place, except that it seems +0 and -0 are misplaced.
> the data outputed by the decoder changes, which changes the checksum
>
> Either the decoder should not change in output by default
> or
> the checksum should be updated
> or
> the command line options for the tests would need to be changed so
> as to maintain the same output in the test
>
>
> [...]
>
Thanks Michael.  I understand how the checksum works.  What I don't 
understand is where is the  framecrc command and what does its 5 numbers 
of output mean.