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authordiego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2>2002-11-13 01:17:58 +0000
committerdiego <diego@b3059339-0415-0410-9bf9-f77b7e298cf2>2002-11-13 01:17:58 +0000
commitaa6c5d6e859a2f351a9a146fcad9732d0c3b5e35 (patch)
tree0ac5c536cfad913557a2d969ce435fdac34fbdd3 /DOCS
parentb3044d0febec37c5629c333a2ba1ae29e488c77b (diff)
downloadmpv-aa6c5d6e859a2f351a9a146fcad9732d0c3b5e35.tar.bz2
mpv-aa6c5d6e859a2f351a9a146fcad9732d0c3b5e35.tar.xz
-channels description expanded, patch by gabor <gabor@realtime.sk>.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8177 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'DOCS')
-rw-r--r--DOCS/mplayer.120
1 files changed, 13 insertions, 7 deletions
diff --git a/DOCS/mplayer.1 b/DOCS/mplayer.1
index 70313d81e0..fe7ffb93c4 100644
--- a/DOCS/mplayer.1
+++ b/DOCS/mplayer.1
@@ -394,17 +394,23 @@ May be negative.
.
.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: