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| author | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2012-05-08 13:58:57 -0400 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2012-05-08 13:58:57 -0400 |
| commit | 9faea25d29ab18e4d67e50f58da47a5f1753d738 (patch) | |
| tree | 171ddd837f3e7a0c5199a8fb0edbd9d659487ffd /celt | |
| parent | 37e135677afb86a7b0136d038e534553e34e243e (diff) | |
| download | libopus-9faea25d29ab18e4d67e50f58da47a5f1753d738.tar.gz | |
Fixes a (harmless) float overflow in the pitch search
Diffstat (limited to 'celt')
| -rw-r--r-- | celt/pitch.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/celt/pitch.c b/celt/pitch.c index 29e4bd12..c01ea55e 100644 --- a/celt/pitch.c +++ b/celt/pitch.c @@ -74,6 +74,11 @@ static void find_best_pitch(opus_val32 *xcorr, opus_val16 *y, int len, opus_val16 num; opus_val32 xcorr16; xcorr16 = EXTRACT16(VSHR32(xcorr[i], xshift)); +#ifndef FIXED_POINT + /* Considering the range of xcorr16, this should avoid both underflows + and overflows (inf) when squaring xcorr16 */ + xcorr16 *= 1e-12; +#endif num = MULT16_16_Q15(xcorr16,xcorr16); if (MULT16_32_Q15(num,best_den[1]) > MULT16_32_Q15(best_num[1],Syy)) { |