[MPlayer-dev-eng] [PATCH] mplayer.1: lavcopts lmin/lmax, vrc_buf_size

Tobias Diedrich ranma at gmx.at
Tue Oct 28 23:31:45 CET 2003


Since I just found that the undocumented lmin/lmax parameters are
needed for ratecontrol, this is my suggestion for the manpage:

+.B lmin=<0.0\-99.9>
+minimum average quantizer for ratecontrol, should be equal to or lower than
+vqmin. (default: 2.0)
+.RE
+.TP
+.B lmax=<0.0\-99.9>
+maximum average quantizer for ratecontrol. (default: 31.0)
+.RE
+.TP

I'm not sure if this is the correct description though, maybe Michael
Niedermayer can comment on that.
I also propose to change the vrc_buf_size description as follows:

 buffer size in kbit (pass\ 1/\:2).
+For MPEG1/2 this also sets the vbv buffer size, use 327 for VCD,
+917 for SVCD and 1835 for DVD.
 Note: vratetol should not be too large during the second pass or there might
 be problems if vrc_(min|max)rate is used.

OK to commit?
Patch attached.

-- 
Tobias						PGP: http://9ac7e0bc.2ya.com
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Index: DOCS/man/en/mplayer.1
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/man/en/mplayer.1,v
retrieving revision 1.474
diff -u -r1.474 mplayer.1
--- DOCS/man/en/mplayer.1	28 Oct 2003 11:15:37 -0000	1.474
+++ DOCS/man/en/mplayer.1	28 Oct 2003 22:19:40 -0000
@@ -3575,6 +3575,15 @@
 that).
 .RE
 .TP
+.B lmin=<0.0\-99.9>
+minimum average quantizer for ratecontrol, should be equal to or lower than
+vqmin. (default: 2.0)
+.RE
+.TP
+.B lmax=<0.0\-99.9>
+maximum average quantizer for ratecontrol. (default: 31.0)
+.RE
+.TP
 .B vqscale=<1\-31>
 Constant quantizer /\: constant quality encoding (selects fixed quantizer mode).
 A lower value means better quality but larger files (default: 0 (disabled)).
@@ -3732,6 +3741,8 @@
 .TP
 .B vrc_buf_size=<value>
 buffer size in kbit (pass\ 1/\:2).
+For MPEG1/2 this also sets the vbv buffer size, use 327 for VCD,
+917 for SVCD and 1835 for DVD.
 Note: vratetol should not be too large during the second pass or there might
 be problems if vrc_(min|max)rate is used.
 .TP
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