[MPlayer-DOCS] r20773 - trunk/DOCS/man/en/mplayer.1

corey subversion at mplayerhq.hu
Wed Nov 8 04:23:03 CET 2006

Author: corey
Date: Wed Nov  8 04:23:02 2006
New Revision: 20773


- explain lavc lmin option more clearly
- document lavc mblmin and mblmax options

Modified: trunk/DOCS/man/en/mplayer.1
--- trunk/DOCS/man/en/mplayer.1	(original)
+++ trunk/DOCS/man/en/mplayer.1	Wed Nov  8 04:23:02 2006
@@ -7129,8 +7129,15 @@
 .B lmin=<0.01\-255.0>
-Minimum Lagrange multiplier for ratecontrol, you probably want it to be
-equal to or lower than vqmin (default: 2.0).
+Minimum frame-level Lagrange multiplier for ratecontrol (default: 2.0).
+Lavc will rarely use quantizers below the value of lmin.
+Lowering lmin will make lavc more likely to choose lower quantizers for
+some frames, but not lower than the value of vqmin.
+Likewise, raising lmin will make lavc less likely to choose low
+quantizers, even if vqmin would have allowed them.
+You probably want to set lmin approximately equal to vqmin.
+When adaptive quantization is in use, changing lmin/lmax may have less
+of an effect; see mblmin/mblmax.
@@ -7139,6 +7146,20 @@
+.B mblmin=<0.01\-255.0>
+Minimum macroblock-level Lagrange multiplier for ratecontrol
+This parameter affects adaptive quantization options like qprd,
+lumi_mask, etc..
+.B mblmax=<0.01\-255.0>
+Maximum macroblock-level Lagrange multiplier for ratecontrol
+(default: 31.0).
 .B vqscale=<0\-31>
 Constant quantizer /\: constant quality encoding (selects fixed quantizer mode).
 A lower value means better quality but larger files (default: 0).

More information about the MPlayer-DOCS mailing list