[Mplayer-cvslog] CVS: main/DOCS mplayer.1,1.261,1.262

[Diego Biurrun CVS]

Update of /cvsroot/mplayer/main/DOCS
In directory mail:/var/tmp.root/cvs-serv30373

Modified Files:
	mplayer.1 
Log Message:
-channels description expanded, patch by gabor <gabor at realtime.sk>.


Index: mplayer.1
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/mplayer.1,v
retrieving revision 1.261
retrieving revision 1.262
diff -u -r1.261 -r1.262
--- mplayer.1	10 Nov 2002 20:16:49 -0000	1.261
+++ mplayer.1	13 Nov 2002 01:17:58 -0000	1.262
@@ -394,17 +394,23 @@
 .
 .TP
 .B \-channels <number>
-Change the number of playback channels.
+Change the number of playback channels, defaults to '2' if not specified.
 If the number of output channels is bigger than the number of input channels
-empty channels are inserted (except mixing from mono to stereo, then the mono
-channel is repeated in both of the output channels).
-If the number of output channels is smaller than the number of input channels
-the exceeding channels are truncated.
+empty channels are inserted (unless mixing from mono to stereo, then the mono
+channel is repeated in both output channels).
+If the number of output channels is smaller than the number of input channels,
+results depend on the audio decoder (\-afm).
+Mplayer asks the decoder to decode the audio into as many channels as
+specified. Now it's up to the decoder to fulfill the requirement. If the
+decoder outputs more channels than requested, the exceeding channels are
+truncated. This is usually only important when playing videos with AC3 audio
+(like DVDs). In that case liba52 does the decoding by default and correctly
+downmixes the audio into the requested number of channels.
 
 .I NOTE:
 .br
-This option is honored by codecs (ac3 only) filters (surround) and ao drivers
-(oss at least).
+This option is honored by codecs (AC3 only) filters (surround) and ao drivers
+(OSS at least).
 .br
 Available options are: