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Fixes a bug in silk_sum_sqr_shift() that was causing issues with Burg.

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When an overflow happened in silk_sum_sqr_shift(), the sample pair causing
the overflow would be counted twice. This would lead to the C0 in
silk_burg_modified() being too large and cause problems on loud, tonal
signals. Thanks to Marcello Caramma for tracking down the problem.
This commit is contained in:
Jean-Marc Valin 2014-06-18 17:06:32 -04:00
parent f396c08f77
commit a88d8365d4
1 changed files with 1 additions and 0 deletions
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1
silk/sum_sqr_shift.c
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@ -53,6 +53,7 @@ void silk_sum_sqr_shift(
/* Scale down */ /* Scale down */
nrg = (opus_int32)silk_RSHIFT_uint( (opus_uint32)nrg, 2 ); nrg = (opus_int32)silk_RSHIFT_uint( (opus_uint32)nrg, 2 );
shft = 2; shft = 2;
i+=2;
break; break;
} }
} }