[MPlayer-DOCS] r18573 - in trunk: DOCS/man/en/mplayer.1 libmpcodecs/ve_lavc.c

[corey]

Author: corey
Date: Mon Jun  5 08:37:29 2006
New Revision: 18573

Modified:
   trunk/DOCS/man/en/mplayer.1

Changes in other areas also in this revision:
Modified:
   trunk/libmpcodecs/ve_lavc.c

Log:
Support and document lavc b_sensitivity option.


Modified: trunk/DOCS/man/en/mplayer.1
==============================================================================
--- trunk/DOCS/man/en/mplayer.1	(original)
+++ trunk/DOCS/man/en/mplayer.1	Mon Jun  5 08:37:29 2006
@@ -7005,6 +7005,7 @@
 Always use the maximum number of B-frames (default).
 .IPs 1
 Avoid B-frames in high motion scenes.
+See the b_sensitivity option to tune this strategy.
 .IPs 2
 Places B-frames more or less optimally to yield maximum quality (slower).
 You may want to reduce the speed impact of this option by tuning the
@@ -7013,6 +7014,17 @@
 .PD 1
 .
 .TP
+.B b_sensitivity=<any integer greater than 0>
+Adjusts how sensitively vb_strategy=1 detects motion and avoids using
+B-frames (default: 40). 
+Lower sensitivities will result in more B-frames.
+Using more B-frames usually improves PSNR, but too many B-frames can
+hurt quality in high-motion scenes.
+Unless there is an extremely high amount of motion, b_sensitivity can
+safely be lowered below the default; 10 is a reasonable value in most
+cases.
+.
+.TP
 .B brd_scale=<0\-10>
 Downscales frames for dynamic B-frame decision (default: 0).
 Each time brd_scale is increased by one, the frame dimensions are