On Tue, 20 Jan 2009 18:23:21 +0200 Pasi Kärkkäinen pasik@iki.fi wrote:
Please check this thread: http://www.linuxtv.org/pipermail/vdr/2008-July/017347.html
Original patches: http://lowbyte.de/vga-sync-fields/
New version: http://www.vdr-portal.de/board/thread.php?threadid=80567
Those might help.. they're about getting pure 1:1 interlaced (576i) RGB output from a VGA card.. and the new version also has some HDTV stuff, I guess. I don't read german so i'm not familiar with that..
There are also patches to maintain perfect field sync to DVB stream to avoid tearing/stutter/jerkiness.
Varying the output frame rate to keep in sync with the input stream is very clever, but I don't understand how it solves the problem of distinguishing between top and bottom fields to sync to.