[FFmpeg-devel] Prores 4444 (alpha) support

[Maxim]

Am 23.10.2012 10:38, schrieb Al Crate:
> Yeah that'd be handy, though getting the color model added to avutil
> would need to happen first, though just to confuse matters i think
> 4444 can use RGB as well as YUV

If you could send us a patch it'd be very appreciated!

Hint: please don't top-post on this ML...

Best regards
Maxim

>
> On 22/10/12 18:36, Maxim wrote:
>> Am 22.10.2012 18:20, schrieb Edward Richards:
>>> I don't think anyone knows what the alpha compression scheme is.
>>
>> The compression scheme for ProRes' alpha is basically the same as for
>> the other three components, i.e. run-length coding + variable-length
>> codewords. I'm currently preparing a description on how it works, so
>> someone else could reimplement it...
>>
>>> Also it is a patent violation in the US and possibly other places so
>>> use accordingly.
>>
>> Fortunately, software patents are void in Europe:-)
>>
>> Best regards
>> Maxim Poliakovski
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