[Mplayer-cvslog] CVS: main/DOCS encoding.html,1.73,1.74
Richard Felker CVS
rfelker at mplayerhq.hu
Mon Jan 6 05:58:32 CET 2003
Update of /cvsroot/mplayer/main/DOCS
In directory mail:/var/tmp.root/cvs-serv8313/DOCS
Modified Files:
encoding.html
Log Message:
fix lots of stuff that was outdated, unclear, inaccurate, or
misleading. hopefully no one objects to any of these changes.
Index: encoding.html
===================================================================
RCS file: /cvsroot/mplayer/main/DOCS/encoding.html,v
retrieving revision 1.73
retrieving revision 1.74
diff -u -r1.73 -r1.74
--- encoding.html 19 Dec 2002 21:36:44 -0000 1.73
+++ encoding.html 6 Jan 2003 04:58:20 -0000 1.74
@@ -15,7 +15,7 @@
<P>For the complete list of available MEncoder options and examples, please see
the man page.</P>
-<H3><A NAME="2pass">2.4.1 Encoding 2 or 3-pass DivX4</A></H3>
+<H3><A NAME="2pass">2.4.1 Encoding 2 or 3-pass MPEG-4 ("DIVX")</A></H3>
<P><U><B>2-pass encoding:</B></U> the name comes from the fact that this method
encodes the file <I>twice</I>. The first encoding (dubbed <I>pass</I>)
@@ -26,8 +26,8 @@
you heard about this, you should consult some guides available on the
Net.</P>
-<P>This example shows how to encode a DVD to a 2-pass DivX4 AVI. Just two
- commands are needed:<BR>
+<P>This example shows how to encode a DVD to a 2-pass MPEG-4 ("DIVX") AVI. Just
+ two commands are needed:<BR>
<CODE> rm frameno.avi</CODE> - remove this file, which
can come from a previous 3-pass encoding (it interferes with current
one)<BR>
@@ -54,16 +54,16 @@
<LI>Second pass:
<P><CODE>mencoder <file/DVD> -oac copy
-ovc lavc -lavcopts vcodec=mpeg4:vpass=1:vbitrate=<bitrate></CODE></P>
- <P>Alias the first pass of DivX4 video encoding.
+ <P>This is the first pass of video encoding.
Optionally specify the video bitrate MEncoder printed at the end of
the previous pass.</P></LI>
<LI>Third pass:
<P><CODE>mencoder <file/DVD> -oac copy
-ovc lavc -lavcopts vcodec=mpeg4:vpass=2:vbitrate=<bitrate></CODE></P>
- <P>Alias the second pass of DivX4 video encoding.
- Optionally specify the video bitrate MEncoder printed at the end of
- the previous pass. In this pass, audio from <CODE>frameno.avi</CODE> will
- be inserted into the destination file.. and it's all ready!</P></LI>
+ <P>This is the second pass of video encoding.
+ Specify the same bitrate as in the previous pass unless you really know
+ what you are doing. In this pass, audio from <CODE>frameno.avi</CODE>
+ will be inserted into the destination file.. and it's all ready!</P></LI>
</OL>
<H4>Example for 3-pass encoding:</H4>
@@ -140,11 +140,13 @@
<LI>mjpeg - Motion JPEG</LI>
<LI>h263 - H263</LI>
<LI>h263p - H263 Plus</LI>
- <LI>mpeg4 - DivX4</LI>
- <LI>msmpeg4 - the old DivX</LI>
- <LI>msmpeg4v2 - Micro$oft MPEG4 V2 (DivX alias MP43 predecessor)</LI>
+ <LI>mpeg4 - ISO standard MPEG-4 (DivX 4/5, OpenDivX, XVID compatible)</LI>
+ <LI>msmpeg4 - pre-standard MPEG-4 variant by MS, v3 (aka DivX3)</LI>
+ <LI>msmpeg4v2 - pre-standard MPEG-4 by MS, v2 (used in old asf files)</LI>
+ <LI>wmv1 - Windows Media Video, version 1 (aka WMV7)</LI>
<LI>rv10 - an old RealVideo codec</LI>
<LI>mpeg1video - MPEG1 video :)</LI>
+ <LI>huffyuv - lossless compression</LI>
</UL>
<P>The first column contains the codec names that should be passed after the
@@ -168,9 +170,7 @@
<CODE>libjpeg</CODE> (when decoding PNGs, it will use <B>libpng</B>).</LI>
<LI>MEncoder then feeds the decoded image to the chosen video compressor
- (DivX4, Xvid, ffmpeg msmpeg4, etc...). Watch for the PNG decoder, as
- currently it can output only to RGB formats, thus can't be used with codecs
- that require YUV as input, like DivX4 or ffmpeg's msmpeg4.</LI>
+ (DivX4, Xvid, ffmpeg msmpeg4, etc...).</LI>
</OL>
<H4>Examples</H4>
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