Paul Mc Auley wrote:
> I meant to ask, how does SVideo stack up against the botched
> job my all thumbs attempt would make of trying to solder a VGA plug would
> be?
S-video has much better horizontal resolution than composite (because
chroma isn't encoded on a dot-crawl subcarrier on luma, that is to say,
they each have their own path so each has much higher bandwidth) but not
quite as large a colour space/gamut as RGB.
...if the non-square pixels thing didn't make your brain melt, the maths
of colour space conversion probably will. I don't have any links handy,
but Google will no doubt oblige.
> Also, given the apparent simplicity of the VGA to SCART conversion
> circuit, how come I can't seem to just walk into Maplin or Peats and
> pick up one for a fiver?
Hassle factor: anyone selling these would be inundated with people
returning them claiming "it don't work!" because many TVs' scart inputs
ignore the RGB pins. Of the ones that *do* know about RGB, some want
another pin on the scart plug pulled high or low (I forget which) to
tell it to use it instead of the composite input (which afair is shared
with the sync signal, just for added confusion; you can use a composite
signal for sync only if you want...)
cjb
http://ocean.ucc.ie/~cjvdb1/
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