[linux-dvb] Re: 768x576, 720x576, 704x576?! (was: black borders in xawtv)

["Jean-Claude Repetto" <jrepetto@mxmlab.com>]

----- Original Message -----
From: "Johann Hanne" <jonny@xiroi.de>
To: <jonathan.foster@philips.com>
Cc: <linux-dvb@linuxtv.org>
Sent: Thursday, February 28, 2002 9:28 PM
Subject: [linux-dvb] 768x576, 720x576, 704x576?! (was: black borders in
xawtv)


>
> Analog PAL is 702x576 (really? not 704x576?).

Analog PAL is 52µs x 576 lines. There are no horizontal pixels, since the
signal is analog. Each line is 52µs long.
The number of horizontal pixels you get when you digitize the analog signal
depends on the sample frequency. If you use the standard 13.5 Mz sample
frequency, you get 13.5 x 52 = 702 pixels/line.


Jean-Claude




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