[Ffmpeg-devel] ffmpeg & postprocess_internal.h (colorspace issue)
Marcus Engene
ffmpeg
Mon Jul 25 10:47:24 CEST 2005
Martin Boehme wrote:
> Kris A. Wotipka wrote:
>
>>> AFAIK this means yuv420p colorspace, but with the standard luma
>>> range (16-234).
>>
>>
>> To be honest, this line really helped me because it put me on the
>> track of YUV.
>
>
> Actually, (almost) all digital video codecs use the YUV colour space.
> Reason being that it decorrelates the RGB components, and you can
> reduce the bandwidth for the U and V components because the human
> visual system isn't as sensitive to colour changes as it is to
> luminance changes.
An utterly silly question, would it solve Kris's problem by doing a
vhook squeezing 0-255 into 16-234 or am I on snus again?
/Marcus
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