From 594c4d8e9d60bdcd2244a68517a81998e03efb84 Mon Sep 17 00:00:00 2001 From: Jean-Marc Valin Date: Fri, 22 Jul 2016 14:25:03 -0400 Subject: Increase headroom to avoid overflow in silk_pitch_analysis_core() --- silk/fixed/pitch_analysis_core_FIX.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/silk/fixed/pitch_analysis_core_FIX.c b/silk/fixed/pitch_analysis_core_FIX.c index 7cd303d5..03ea28d0 100644 --- a/silk/fixed/pitch_analysis_core_FIX.c +++ b/silk/fixed/pitch_analysis_core_FIX.c @@ -141,7 +141,7 @@ opus_int silk_pitch_analysis_core( /* O Voicing estimate: 0 /* Downscale input if necessary */ silk_sum_sqr_shift( &energy, &shift, frame_unscaled, frame_length ); - shift += 2 - silk_CLZ32( energy ); /* at least one bit headroom */ + shift += 3 - silk_CLZ32( energy ); /* at least two bits headroom */ ALLOC( frame_scaled, frame_length, opus_int16 ); if( shift > 0 ) { shift = silk_RSHIFT( shift + 1, 1 ); -- cgit v1.2.1