[mythtv] [PATCH] quck and dirty DNR filter plugin
davatar at comcast.net
Thu Oct 9 02:45:01 EDT 2003
This implements dynamic noise reduction without all the usual fluff, making
it *just* quick enough to filter livetv at 320x480 on an athlon 800
(although it is probably offset by the encoder cpu time you can save by
turning down the bitrate). The default thresholds are set to a "high"
setting, you may notice ghosting on high motion scenes, but mostly video
quality is much improved.
For those of you unfamiliar: This will average frames together mostly
eliminating noise where there are several (2+) frames in which a pixel stays
the same, i.e. background of a newscast, although high motion objects will
still have noise. Besides good video this will also save encoder bandwidth.
FYI you must edit the channel table and add "dnr" to the filter column.
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