[MPlayer-dev-eng] Documentation updates - surround etc
Stephen Davies
steve at daviesfam.org
Mon Dec 31 02:02:16 CET 2001
Hi,
Attached some documentation updates:
- A paragraph on the surround plugin
- A credit to Jake Janovetz, author of the LGPL remez.c used in
pl_surround to calculate filter coefficients
- Took the liberty to include a credit to myself ;-)
[will a credit for mplayer help me get work, or lose me my job? ;-)]
Steve
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Index: DOCS/codecs.html
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RCS file: /cvsroot/mplayer/main/DOCS/codecs.html,v
retrieving revision 1.43
diff -u -r1.43 codecs.html
--- DOCS/codecs.html 27 Dec 2001 22:12:35 -0000 1.43
+++ DOCS/codecs.html 31 Dec 2001 01:02:51 -0000
@@ -249,9 +249,6 @@
version of the emu10k1 driver (used with the SB Live cards) newer than
August 2001 should be suitable.</P>
-<P>Output mixes of more than 2 channels should be considered
-experimental.</P>
-
<P><B><A NAME=2.2.2.2>2.2.2.2. Hardware AC3 decoding</A></B></P>
Index: DOCS/documentation.html
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/documentation.html,v
retrieving revision 1.157
diff -u -r1.157 documentation.html
--- DOCS/documentation.html 30 Dec 2001 16:43:08 -0000 1.157
+++ DOCS/documentation.html 31 Dec 2001 01:02:56 -0000
@@ -125,6 +125,7 @@
<LI><A HREF="sound.html#2.3.2.2">2.3.2.2 Audio plugins</A></LI>
<UL>
<LI><A HREF="sound.html#2.3.2.2.1">2.3.2.2.1 Up/Downsampling</A></LI>
+ <LI><A HREF="sound.html#2.3.2.2.2">2.3.2.2.2 Surround Sound decoding</A></LI>
</UL>
</UL>
</UL>
@@ -1384,6 +1385,12 @@
<LI>RTP streaming support (reading)</LI>
</UL></LI>
+<LI><B><A HREF="mailto:steve at daviesfam.org">Stephen Davies</A></B>
+<UL>
+ <LI>support for large video files (>2^32 bytes in size)</LI>
+ <LI>surround sound</LI>
+</UL></LI>
+
</UL></P>
<P>Main testers:</P>
@@ -1436,6 +1443,10 @@
</LI><LI>Mark Podlipec:
<UL><LI>xa_gsm.c author [MS-GSM audio codec]
[from a GSM library by Jutta Degener and Carsten Bormann]
+</LI></UL>
+
+</LI><LI>Jake Janovetz:
+<UL><LI>remez.c author [Used to calculate audio filter coefficients]
</LI></UL>
</LI></UL></P>
Index: DOCS/sound.html
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RCS file: /cvsroot/mplayer/main/DOCS/sound.html,v
retrieving revision 1.20
diff -u -r1.20 sound.html
--- DOCS/sound.html 28 Dec 2001 21:37:15 -0000 1.20
+++ DOCS/sound.html 31 Dec 2001 01:02:59 -0000
@@ -139,5 +139,18 @@
frequency in Hz, like 44100></CODE></P>
+<P><B><A NAME=2.3.2.2.2>2.3.2.2.2. Surround Sound decoding</B></P>
+
+<P><B>MPlayer</b> has an audio plugin that can decode matrix encoded
+surround sound. Dolby Surround is an example of a matrix encoded format.</p>
+
+<P>Many files with 2 channel audio actually contain matrixed surround
+sound.</p>
+
+<P>To use this feature, you will need a sound-card supporting at least 4 channels.</P>
+
+<P>Usage :<BR>
+ <CODE>mplayer media.avi -aop list=surround</CODE></P>
+
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