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aacpsy: cosmetics, change a FIXME to a NOTE about subshort comparisons 

Also fix a typo.

Signed-off-by: Alex Converse <alex.converse@gmail.com>
This commit is contained in:
Nathan Caldwell 2012-01-07 14:16:10 -07:00 committed by Alex Converse
parent 5310704190
commit 843cd4a3ed
1 changed files with 6 additions and 6 deletions
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libavcodec/aacpsy.c
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@ -827,9 +827,9 @@ static FFPsyWindowInfo psy_lame_window(FFPsyContext *ctx,
p = fabsf(*pf);
pch->prev_energy_subshort[i] = energy_subshort[i + PSY_LAME_NUM_SUBBLOCKS] = p;
energy_short[1 + i / PSY_LAME_NUM_SUBBLOCKS] += p;
/* FIXME: The indexes below are [i + 3 - 2] in the LAME source.
/* NOTE: The indexes below are [i + 3 - 2] in the LAME source.
* Obviously the 3 and 2 have some significance, or this would be just [i + 1]
* (which is what we use here). What the 3 stands for is ambigious, as it is both
* (which is what we use here). What the 3 stands for is ambiguous, as it is both
* number of short blocks, and the number of sub-short blocks.
* It seems that LAME is comparing each sub-block to sub-block + 1 in the
* previous block.