[MPlayer-dev-eng] [PATCH] XviD 1.1.x support

Reimar Döffinger Reimar.Doeffinger at stud.uni-karlsruhe.de
Sat Oct 2 23:52:38 CEST 2004


Hi,
>>>> -    mod->mux->bih->biBitCount = 24;
>>>> +    mod->mux->bih->biBitCount = 12;
>>>
>>> Hmm.. ?
>>
>> Still here, I'm sure that it can be explained, but I'm not the guy in
>> charge here.

Yes, I remembered that. But I won't get an answer by not asking either, 
so I just asked ;-)

> I don't know why it worked before, but xvid (i.e. mpeg-4) uses a yuv 
> 4:2:0 colorspace, which takes 12 bits per pixel. Thus the byte-size of 
> an image is width*height*3/2.

That was my theory too, but I was irritated that it probably worked 
before. Maybe it was just used in some malloc, the double size isn't so 
bad...

Greetings,
Reimar Döffinger




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