[mythtv] Mythtv and XvMC deinterlacing patch

Daniel Thor Kristjansson danielk at cat.nyu.edu
Tue Jul 13 10:55:27 EDT 2004

I've attached a small patch that should fix this. I can't test it myself
at the moment but just added two lines that should turn on poor man's
XvMC deinterlacing for unlabeled 1080i content.

-- Daniel

On Mon, 12 Jul 2004, John Roberts wrote:

]I've been reading your patches at: http://www.mrl.nyu.edu/~danielk/mythtv/ -
]thanks for the great support on the hdtv side of mythtv!
]I have recently installed a pcHDTV card and things seem to be working well
](I have NOT installed your patches - yet).  The big issue I have right now
](and I was wondering if your patches may resolve them) is when I watch 1080i
]content.  With 720p the picture looks great - but with 1080i I see interlace
]When I run the frontend with --verbose playback - I can see interfaced: -1
]which makes me think it doesn't think it needs to perform any de-interlacing
]on the incoming content.
]Any thoughts on this?  Do you think any of your patches may solve any of
]My P4/HT 2.6G proc is just not fast enough to run without XvMC - so I can do
]any of the software de-interlacing...
]Any help would be great!!!!
]Details if you care:
]- P4/HT 2.6G 800FSB
]- MythTV 0.15.1
]- pcHDTV card
]- PVR-250 card
]- Linux 2.6.7 (under Gentoo)
]- Samsung DLP
]Thanks for the help,
-------------- next part --------------
Index: libs/libmythtv/NuppelVideoPlayer.cpp
RCS file: /var/lib/mythcvs/mythtv/libs/libmythtv/NuppelVideoPlayer.cpp,v
retrieving revision 1.350
diff -u -r1.350 NuppelVideoPlayer.cpp
--- libs/libmythtv/NuppelVideoPlayer.cpp	3 Jul 2004 16:48:49 -0000	1.350
+++ libs/libmythtv/NuppelVideoPlayer.cpp	13 Jul 2004 14:50:20 -0000
@@ -453,6 +453,8 @@
             scan = kScan_Progressive;
         else if (video_height <= 640) // HACK, 320x240 looks bad...
             scan = kScan_Progressive;
+	else if (video_height >= 1080) // ATSC 1080i
+	    scan = kScan_Interlaced;
         if (kScan_Detect != newScan)
             scan = newScan;

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