[FFmpeg-devel] [PATCH] grayalpha pixfmt + support in pngdec

[Andreas Öman]

Michael Niedermayer wrote:
> On Mon, Apr 12, 2010 at 09:40:03PM +0200, Andreas ?man wrote:
>> Michael Niedermayer wrote:
>>> On Mon, Apr 12, 2010 at 10:43:02AM +0200, Andreas ?man wrote:
>>>> Hi
>>>> +    [PIX_FMT_GRAYALPHA] = {
>>>> +        .name = "grayalpha",
>>> where does the name grayalpha come from?
>> I just didn't come up with anything better.
>> Ideas are most welcome.
> 
> something that is consistent with existing formats would
> be better also what is it calld in the png docs?

PNG docs seems to call it "Grayscale with alpha" or "ya".
Perhaps "ya" would be a good name then?

> and do you have a sample file?

Yes, it's easy to create with GIMP (Make a grayscale image
and add alpha channel)


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