Re: what card to buy for good capture? Cinergy 600?

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Vidiot <brown@xxxxxxxxxxxxxxxxxx> writes:

>> 786x576 is not a digital spec (that I've heard of).  For PAL it is 720x576.
>> Frame rate is a given, i.e., the NTSC or PAL rates.

There are different specs given. I asked google and it came up with the
following. 

Hohan Hanne writes on
<http://www.linuxtv.org/mailinglists/linux-dvb/2002/03-2002/msg00151.html>:

| Analog PAL is 702x576 (really? not 704x576?). The usual TV has an
| aspect ratio of 4:3, so the picture is somehow scaled to 768x576. So
| far, so good.
| 
| "Digital PAL" is broadcast as 720x576 (why 720 and not 702?). However,
| as the source is the analog PAL 702x576 picture, the 9 pixel borders
| on each side are encoded into the MPEG2 stream. Again, the usual TV
| has an aspect ratio of 4:3. When scaling from 720 to 768 i see two

So that's probably where the confusion comes from. I didn't know that
before and didn't want to loose any information in the picture. But it
seems 720x576 should be sufficient.

Alan Cox <alan@xxxxxxxxxx> writes:

> 768x576 I've seen not 786 - typo ?

Yes, a typo. It should have read 768x576. 

     Berny

-- 
bernhard.marx@xxxxxxx




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