[xiph-cvs] cvs commit: vorbis/doc/xml Vorbis_I_spec.xml 04-codec.xml
Ralph Giles
giles at xiph.org
Fri Oct 25 07:41:14 PDT 2002
giles 02/10/25 10:41:14
Modified: doc/xml Vorbis_I_spec.xml 04-codec.xml
Log:
Define required character entities manually since the parse isn't
finding the parameter includes.
Revision Changes Path
1.6 +4 -1 vorbis/doc/xml/Vorbis_I_spec.xml
Index: Vorbis_I_spec.xml
===================================================================
RCS file: /usr/local/cvsroot/vorbis/doc/xml/Vorbis_I_spec.xml,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -r1.5 -r1.6
--- Vorbis_I_spec.xml 21 Oct 2002 23:37:00 -0000 1.5
+++ Vorbis_I_spec.xml 25 Oct 2002 14:41:13 -0000 1.6
@@ -2,7 +2,10 @@
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"
[
-%isogrk3;
+<!-- parser isn't finding %isolat1; -->
+<!ENTITY uuml "ü"> <!-- Latin small letter u with diaeresis -->
+<!-- parser isn't finding %isogrk3; -->
+<!ENTITY pi "π"> <!-- GREEK SMALL LETTER PI -->
<!ENTITY intro SYSTEM "01-introduction.xml">
<!ENTITY bitpacking SYSTEM "02-bitpacking.xml">
<!ENTITY codebook SYSTEM "03-codebook.xml">
<p><p>1.5 +4 -4 vorbis/doc/xml/04-codec.xml
Index: 04-codec.xml
===================================================================
RCS file: /usr/local/cvsroot/vorbis/doc/xml/04-codec.xml,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -r1.4 -r1.5
--- 04-codec.xml 21 Oct 2002 23:37:00 -0000 1.4
+++ 04-codec.xml 25 Oct 2002 14:41:13 -0000 1.5
@@ -1,7 +1,7 @@
<section id="vorbis-spec-codec">
<sectioninfo>
<releaseinfo>
- $Id: 04-codec.xml,v 1.4 2002/10/21 23:37:00 giles Exp $
+ $Id: 04-codec.xml,v 1.5 2002/10/25 14:41:13 giles Exp $
<emphasis>Last update to this document: October 15, 2002</emphasis>
</releaseinfo>
</sectioninfo>
@@ -344,7 +344,7 @@
</orderedlist>
<para>
-Vorbis windows all use the slope function y=sin(0.5 * \pi * sin^2((x+.5)/n * \pi)),
+Vorbis windows all use the slope function y=sin(0.5 * π * sin^2((x+.5)/n * π)),
where n is window size and x ranges 0...n-1, but dissimilar
lapping requirements can affect overall shape. Window generation
proceeds as follows:</para>
@@ -385,9 +385,9 @@
</listitem>
<listitem><simpara> window from range 0 ... <varname>[left_window_start]</varname>-1 inclusive is zero</simpara></listitem>
<listitem><simpara> for <varname>[i]</varname> in range <varname>[left_window_start]</varname> ...
-<varname>[left_window_end]</varname>-1, window(<varname>[i]</varname>) = sin(.5 * \pi * sin^2( (<varname>[i]</varname>-<varname>[left_window_start]</varname>+.5) / <varname>[left_n]</varname> * .5 * \pi) )</simpara></listitem>
+<varname>[left_window_end]</varname>-1, window(<varname>[i]</varname>) = sin(.5 * π * sin^2( (<varname>[i]</varname>-<varname>[left_window_start]</varname>+.5) / <varname>[left_n]</varname> * .5 * π) )</simpara></listitem>
<listitem><simpara> window from range <varname>[left_window_end]</varname> ... <varname>[right_window_start]</varname>-1
-inclusive is one</simpara></listitem><listitem><simpara> for <varname>[i]</varname> in range <varname>[right_window_start]</varname> ... <varname>[right_window_end]</varname>-1, window(<varname>[i]</varname>) = sin(.5 * \pi * sin^2( (<varname>[i]</varname>-<varname>[right_window_start]</varname>+.5) / <varname>[right_n]</varname> * .5 * \pi/2. + .5 * \pi) )</simpara></listitem>
+inclusive is one</simpara></listitem><listitem><simpara> for <varname>[i]</varname> in range <varname>[right_window_start]</varname> ... <varname>[right_window_end]</varname>-1, window(<varname>[i]</varname>) = sin(.5 * π * sin^2( (<varname>[i]</varname>-<varname>[right_window_start]</varname>+.5) / <varname>[right_n]</varname> * .5 * π/2. + .5 * π) )</simpara></listitem>
<listitem><simpara> window from range <varname>[rigth_window_start]</varname> ... <varname>[n]</varname>-1 is
zero</simpara></listitem>
</orderedlist>
<p><p>--- >8 ----
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