From owner-freebsd-multimedia  Sat Sep 20 23:04:56 1997
Return-Path: <owner-freebsd-multimedia>
Received: (from root@localhost)
          by hub.freebsd.org (8.8.7/8.8.7) id XAA15742
          for multimedia-outgoing; Sat, 20 Sep 1997 23:04:56 -0700 (PDT)
Received: from gaia.coppe.ufrj.br (jonny@[146.164.5.200])
          by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id XAA15737
          for <multimedia@freebsd.org>; Sat, 20 Sep 1997 23:04:53 -0700 (PDT)
Received: (from jonny@localhost)
	by gaia.coppe.ufrj.br (8.8.7/8.8.7) id DAA23217;
	Sun, 21 Sep 1997 03:04:51 -0300 (EST)
From: Joao Carlos Mendes Luis <jonny@coppe.ufrj.br>
Message-Id: <199709210604.DAA23217@gaia.coppe.ufrj.br>
Subject: bt828 and PAL/M
To: multimedia@freebsd.org
Date: Sun, 21 Sep 1997 03:04:51 -0300 (EST)
X-Mailer: ELM [version 2.4ME+ PL32 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-multimedia@freebsd.org
X-Loop: FreeBSD.org
Precedence: bulk

Hi,

  I'm finally watching TV in my Home FreeBSD !!!  Hurray !!!

  But, I'm in Brazil, and Brazil uses a very interesting video system,
knonw as PAL/M.  For the purposes of image tracing, it's like NTSC,
but for chroma, it's like PAL.  This means that when I use a NTSC tuner
to see PAL/Mbroadcast I can see the image, but the colors are incorrect.
When I have luck, they disapear for complete.

  Here's the dmesg of interest about my card:

bktr0 <BrookTree 848> rev 18 int a irq 10 on pci0:10
Hauppauge WinCast/TV, Philips NTSC tuner.

  This tuner has the capability to detect PAL/M images, and the Windows
tuner indeed do this.  It would be good to have this in fxtv too.  I've
taken a fast look in the kernel driver sources.  It has a define of
TTYPE_PAL_M, but does not use it anywhere.  Is there any plan to
include support for it ?  How could I help ?

  For those more interested, here are some parameters of PAL/M:

  Hf = 15734.26 Hz
  Vf = 59.94 Hz
  Chroma Freq: 3.57561149 MHz
  Scan: 525 lines, 30 fps

					Jonny

--
Joao Carlos Mendes Luis			jonny@gta.ufrj.br
+55 21 290-4698				jonny@coppe.ufrj.br
Universidade Federal do Rio de Janeiro	UFRJ/COPPE/CISI
PGP fingerprint: 29 C0 50 B9 B6 3E 58 F2  83 5F E3 26 BF 0F EA 67