[Ffmpeg-devel] Input image format for encoding...
Michel Bardiaux
mbardiaux
Tue Sep 20 11:25:29 CEST 2005
Mat wrote:
>
> Michel Bardiaux wrote:
>
>> A note of caution: YUV is rather vague.
>
>
> Yep.
> Many standards.
>
>> What you need is YUV420P which is: HEIGHT lines of WIDTH bytes of
>> luminance, followed by HEIGHT/2 lines of WIDTH/2 bytes of chrominance
>> (I can never remember if its Cr or Cb), followed by the same for the
>> other chrominance.
>
>
> 4:2:0 planar - 2 bytes per pixel
No, 1.5 bytes per pixel.
>
>> If your grabber doesnt support that format, you have to use another
>> one then use img_convert.
>
>
> Yep.
> Like in output_example.c
>
> But my grabber seems to like YUV too :)
>
--
Michel Bardiaux
R&D Director
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