doc: Add notes about subframe sample size
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@ -1267,7 +1267,7 @@
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<3>
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</td>
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<td>
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Sample size in bits:<br />
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Sample size in bits: <a href="#frame_header_notes">[5]</a><br />
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<ul>
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<li>
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<tt>000</tt> : get from STREAMINFO metadata block
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@ -1367,6 +1367,11 @@
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<li>
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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.
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</li>
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<li>
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For subframes that encode a difference channel,
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the sample size is one bit larger than the sample size of the frame,
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in order to be able to encode the difference between extreme values.
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</li>
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</ol>
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</td>
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</tr>
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@ -1489,6 +1494,8 @@
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<tt>1</tt> : k wasted bits-per-sample in source subblock, k-1 follows, unary coded; e.g. k=3 => 001 follows, k=7 => 0000001 follows.
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</li>
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</ul>
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The size of the samples stored in the subframe is the subframe sample size reduced by k bits.
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Decoded samples must be shifted left by k bits.
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</td>
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</tr>
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</table>
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