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Date:      Mon, 27 Oct 1997 11:55:23 -0200 (EDT)
From:      Joao Carlos Mendes Luis <jonny@coppe.ufrj.br>
To:        eivind@bitbox.follo.net (Eivind Eklund)
Cc:        multimedia@FreeBSD.ORG
Subject:   Re: Bt848 driver patches
Message-ID:  <199710271355.LAA22646@gaia.coppe.ufrj.br>
In-Reply-To: <199710270202.DAA00345@bitbox.follo.net> from Eivind Eklund at "Oct 27, 97 03:02:30 am"

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#define quoting(Eivind Eklund)
...
// +/* # define BT848_IFORM_F_NTSCM            (0x1) */
// +  { 525, 22, 480,  910, 135, 754, 640,  780, 30, 0x68, 0x5d, BT848_IFORM_X_XT0 },
...
// +/* # define BT848_IFORM_F_PALM             (0x4) */
// +  { 625, 32, 576,  910, 186, 922, 640,  780, 25, 0x68, 0x5d, BT848_IFORM_X_XT0 },

I have not yet tested your code, but PAL/M is just like NTSC when dealing
with B/W format.   In other words: 525x60 and not 625x50...

It's the M suffix that defines B/W mode.

Hey guys, remember: PAL is a TLA for Phase Alternated Line.  It does not
specify a resolution, but an encoding of the color signal.

//  		case BT848_IFORM_F_NTSCM:
//  		case BT848_IFORM_F_NTSCJ:
// -		case BT848_IFORM_F_PALM:

That's why this line was here...

//  		case BT848_IFORM_F_PALBDGHI:
//  		case BT848_IFORM_F_PALN:
//  		case BT848_IFORM_F_SECAM:
//  		case BT848_IFORM_F_RSVD:
// +		case BT848_IFORM_F_PALM:

...and not here.  And this part of code works.  I use it everyday.  :)

					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



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