Attachment 25291 Details for Bug 21487 – xorg-video-trident patch

[patch] xorg-video-trident patch

0001-Add-YUY2-palette-support-to-the-YUV-supported-format.patch (text/plain), 1.66 KB, created by Dmitry Gryazin on 2009-04-30 00:46:50 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Dmitry Gryazin

Created: 2009-04-30 00:46:50 UTC

Size: 1.66 KB

patch

obsolete

>From 2f490116d200f8ada250d53fd37a4566114d0e20 Mon Sep 17 00:00:00 2001
>From: Dmitry Gryazin <gdu@mns.spb.ru>
>Date: Sat, 1 Nov 2008 10:14:55 +0300
>Subject: [PATCH] Add YUY2 palette support to the YUV supported formats list.
>
>Trident hardware Scaler fails to scale video.
>It seems that something is wrong in this pipeline:
>
>videogradder -> backend hardware scaler -> video-display.
>
>Trident driver's hardware Scaler supports YUV format, but YUY2 palette.
>xvinfo out:
>....
>id:0x32595559 (YUY2)
>  guid: 59555932-0000-0010-8000-00aa00389b71
>  bits perpixel: 16
>  number of planes: 1
>  type: YUV (packed)
>
>I have found in V4L2 API specifications that it supports YUYV.
>(http://v4l2spec.bytesex.org/spec-single/v4l2.html)
>But v4l_check_yuv function couldn't setup the pipeline to hardware scaler.
>Why? The IDs of the formats are the same in Video card driver and V4L driver.
>
>Solution I have found:
>
>Append YUY2 palette to the YUV supported formats list with the YUYV's ID.
>It should works fine with modern Video Cards,
>because they support both YUV formats.
>
>Signed-off-by: Dmitry Gryazin <gdu@mns.spb.ru>
>Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
>---
> src/v4l.c |    1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
>
>diff --git a/src/v4l.c b/src/v4l.c
>index 9210a3f..1256ea9 100644
>--- a/src/v4l.c
>+++ b/src/v4l.c
>@@ -865,6 +865,7 @@ static void v4l_check_yuv(ScrnInfoPtr pScrn, PortPrivPtr pPPriv,
>     } yuvlist[] = {
> 	{ VIDEO_PALETTE_YUV422, 16, 0x32595559, XvPacked },
> 	{ VIDEO_PALETTE_UYVY,   16, 0x59565955, XvPacked },
>+	{ VIDEO_PALETTE_YUYV,	16, 0x32595559,	XvPacked },
> 	{ 0 /* end of list */ },
>     };
>     ScreenPtr pScreen = screenInfo.screens[pScrn->scrnIndex];
>-- 
>1.5.6.5
>

Actions: View | Splinter Review

Attachments on bug 21487: 25291 | 25292

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.