Commit 52e9ef19 authored by Ralph Giles's avatar Ralph Giles
Browse files

escape xml-special characters

svn path=/trunk/vorbis/; revision=4002
parent 52359068
<section id="vorbis-spec-bitpacking">
<sectioninfo>
<releaseinfo>
$Id: 02-bitpacking.xml,v 1.2 2002/10/13 15:18:46 giles Exp $
$Id: 02-bitpacking.xml,v 1.3 2002/10/14 18:20:30 giles Exp $
<emphasis>Last update to this document: July 14, 2002</emphasis>
</releaseinfo>
</sectioninfo>
......@@ -124,7 +124,7 @@ Bytestream result:
V
7 6 5 4 3 2 1 0
byte 0 [0 0 0 0 1 1 0 0] <-
byte 0 [0 0 0 0 1 1 0 0] &lt;-
byte 1 [ ]
byte 2 [ ]
byte 3 [ ]
......@@ -142,7 +142,7 @@ Continue by coding the 3 bit integer value '-1' [b111]:
V
7 6 5 4 3 2 1 0
byte 0 [0 1 1 1 1 1 0 0] <-
byte 0 [0 1 1 1 1 1 0 0] &lt;-
byte 1 [ ]
byte 2 [ ]
byte 3 [ ]
......@@ -160,7 +160,7 @@ Continue by coding the 7 bit integer value '17' [b0010001]:
7 6 5 4 3 2 1 0
byte 0 [1 1 1 1 1 1 0 0]
byte 1 [0 0 0 0 1 0 0 0] <-
byte 1 [0 0 0 0 1 0 0 0] &lt;-
byte 2 [ ]
byte 3 [ ]
...
......@@ -180,7 +180,7 @@ Continue by coding the 13 bit integer value '6969' [b110 11001110 01]:
byte 0 [1 1 1 1 1 1 0 0]
byte 1 [0 1 0 0 1 0 0 0]
byte 2 [1 1 0 0 1 1 1 0]
byte 3 [0 0 0 0 0 1 1 0] <-
byte 3 [0 0 0 0 0 1 1 0] &lt;-
...
byte n [ ] bytestream length == 4 bytes
......@@ -199,7 +199,7 @@ Reading from the beginning of the bytestream encoded in the above example:
V
7 6 5 4 3 2 1 0
byte 0 [1 1 1 1 1 1 0 0] <-
byte 0 [1 1 1 1 1 1 0 0] &lt;-
byte 1 [0 1 0 0 1 0 0 0]
byte 2 [1 1 0 0 1 1 1 0]
byte 3 [0 0 0 0 0 1 1 0] bytestream length == 4 bytes
......
<section id="vorbis-spec-floor0">
<sectioninfo>
<releaseinfo>
$Id: 06-floor0.xml,v 1.3 2002/10/13 15:18:46 giles Exp $
$Id: 06-floor0.xml,v 1.4 2002/10/14 18:20:30 giles Exp $
<emphasis>Last update to this document: July 19, 2002</emphasis>
</releaseinfo>
</sectioninfo>
......@@ -139,6 +139,7 @@ synthesized:</para>
<informalequation>
<alt>
[lsp map equation]
<![CDATA[
\begin{math}
\mathrm{map}_i = \left\{
\begin{array}{ll}
......@@ -165,6 +166,7 @@ synthesized:</para>
\begin{math}
\mathrm{bark}(x) = 13.1 \arctan (.00074x) + 2.24 \arctan (.0000000158x^2)+.0001x
\end{math}
]]>
</alt>
<graphic fileref="lspmap.png"/>
</informalequation>
......@@ -183,10 +185,12 @@ Similarly, the below calculation synthesizes the output LSP curve <varname>[outp
<informalequation>
<alt>
[equation for odd lsp]
<![CDATA[
\begin{eqnarray*}
p & = & (1 - \cos^2\omega)\prod_{j=0}^{(\mathtt{order}-3)/2} 4 (\cos c_{2j+1} - \cos \omega)^2 \\
q & = & \frac{1}{4} \prod_{j=0}^{(\mathtt{order}-1)/2} 4 (\cos c_{2j+1} - \cos \omega)^2
\end{eqnarray*}
]]>
</alt>
<graphic fileref="oddlsp.png"/>
</informalequation>
......@@ -198,10 +202,12 @@ Similarly, the below calculation synthesizes the output LSP curve <varname>[outp
<informalequation>
<alt>
[equation for even lsp]
<![CDATA[
\begin{eqnarray*}
p & = & \frac{(1 - \cos^2\omega)}{2} \prod_{j=0}^{(\mathtt{order}-2)/2} 4 (\cos c_{2j} - \cos \omega)^2 \\
q & = & \frac{(1 + \cos^2\omega)}{2} \prod_{j=0}^{(\mathtt{order}-2)/2} 4 (\cos c_{2j} - \cos \omega)^2
\end{eqnarray*}
]]>
</alt>
<graphic fileref="evenlsp.png"/>
</informalequation>
......@@ -213,10 +219,12 @@ Similarly, the below calculation synthesizes the output LSP curve <varname>[outp
<informalequation>
<alt>
[expression for floorval]
<![CDATA[
\begin{math}
\exp \left( .11512925 \left(\frac{\mathtt{amplitude} \cdot \mathtt{floor0\_amplitute\_offset}}{(2^{\mathtt{floor0\_amplitude\_bits}}-1)\sqrt{p+q}}
- \mathtt{floor0\_amplitude\_offset} \right) \right)
\end{math}
]]>
</alt>
<graphic fileref="floorval.png"/>
</informalequation>
......
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