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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]



>On Wed, 2003-09-03 at 17:23, Vidiot wrote:
>> 768x576 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.
>
>768x576 is the square pixel (1:1) variant of the "official" PAL
>resolution of 720x576 (CCIR601). The advantage of square pixel is that
>you don't need scaling over the display to make the ratio look good.
>I.e., every video pixel becomes a screen pixel and you're done. For
>CCIR601, the pixel ratio isn't exactly 1:1, so you need to rescale for
>playback/overlay for it to look as it's supposed to.
>Ronald

>From the top of my head, I think it is 1.2:1 for PAL and 0.9:1 for NTSC.
In any event, AFAIK, 768x576 is not an official digital sample size.  That
means finding a card to do it might be a little tough.

MB
-- 
e-mail: vidiot@xxxxxxxxxx                                /~\ The ASCII
                                                         \ / Ribbon Campaign
[So it's true, scythe matters.  Willow  5/12/03]          X  Against
Visit - URL: http://vidiot.com/                          / \ HTML Email




[Index of Archives]     [Linux DVB]     [Video Disk Recorder]     [Asterisk]     [Photo]     [DCCP]     [Netdev]     [Xorg]     [Util Linux NG]     [Xfree86]     [Free Photo Albums]     [Fedora Users]     [Fedora Women]     [ALSA Users]     [ALSA Devel]     [Linux USB]

Powered by Linux