[MPlayer-DOCS] CVS: main/DOCS/man/en mplayer.1,1.1209,1.1210
Corey Hickey
syncmail at mplayerhq.hu
Sun Jan 22 22:02:17 CET 2006
CVS change done by Corey Hickey
Update of /cvsroot/mplayer/main/DOCS/man/en
In directory mail:/var2/tmp/cvs-serv3424/DOCS/man/en
Modified Files:
mplayer.1
Log Message:
support libavcodec's new sc_factor parameter
Original idea from Michael; patch by me.
Index: mplayer.1
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/man/en/mplayer.1,v
retrieving revision 1.1209
retrieving revision 1.1210
diff -u -r1.1209 -r1.1210
--- mplayer.1 21 Jan 2006 20:32:13 -0000 1.1209
+++ mplayer.1 22 Jan 2006 21:02:11 -0000 1.1210
@@ -6831,6 +6831,16 @@
1000000000 means no scene changes are detected (default: 0).
.
.TP
+.B sc_factor=<any positive integer>
+Causes frames with higher quantizers to be more likely to trigger a
+scene change detection and make libavcodec use an I-frame (default: 1).
+1\-16 is a sane range.
+Values between 2 and 6 may yield increasing PSNR (up to approximately
+0.04 dB) and better placement of I-frames in high-motion scenes.
+Higher values than 6 may give very slightly better PSNR (approximately
+0.01 dB more than sc_factor=6), but noticably worse visual quality.
+.
+.TP
.B vb_strategy=<0\-2> (pass one only)
strategy to choose between I/\:P/\:B-frames:
.PD 0
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