Commit 1ab8a51c authored by Ruud van Asseldonk's avatar Ruud van Asseldonk Committed by Erik de Castro Lopo

doc: Add notes about subframe sample size

parent bb750734
......@@ -1267,7 +1267,7 @@
<3>
</td>
<td>
Sample size in bits:<br />
Sample size in bits: <a href="#frame_header_notes">[5]</a><br />
<ul>
<li>
<tt>000</tt> : get from STREAMINFO metadata block
......@@ -1367,6 +1367,11 @@
<li>
The "UTF-8" coding used for the sample/frame number is the same variable length code used to store compressed UCS-2, extended to handle larger input.
</li>
<li>
For subframes that encode a difference channel,
the sample size is one bit larger than the sample size of the frame,
in order to be able to encode the difference between extreme values.
</li>
</ol>
</td>
</tr>
......@@ -1489,6 +1494,8 @@
<tt>1</tt> : k wasted bits-per-sample in source subblock, k-1 follows, unary coded; e.g. k=3 =&gt; 001 follows, k=7 =&gt; 0000001 follows.
</li>
</ul>
The size of the samples stored in the subframe is the subframe sample size reduced by k bits.
Decoded samples must be shifted left by k bits.
</td>
</tr>
</table>
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