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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We are porting the Ogg Vorbis fixed point decoder to a 24
bit fixed point precision processor. We are trying to reduce the number of
cycles for MIPS optimization. In this process we observed that most of the
songs do not have “maximum codeword length” greater than 24 bits. </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>We are planning to reduce most of the double word operations
(in our case 32 bit data is stored as double word) to single word, i.e. 24 bit.
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I would like to know, what is the chance of getting a
codeword of length greater than 24 bits in a song or for songs of
different qualities while encoding? </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The maximum possible codeword length being 32 bits, we are
currently storing it in double word. If the likeliness of it occurring is very
less then we plan to use only single word ( 24 bits ) operations for the
Huffman decoding.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Regards,</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Valmick</span></font></p>
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font-family:Arial'> </span></font></p>
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12.0pt'> </span></font></p>
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12.0pt'> </span></font></p>
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