third_party/opus/src/silk/CNG.c - Issue 2349213003: Opus: Fixes overflow in CNG

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Unified Diff: third_party/opus/src/silk/CNG.c

Issue 2349213003: Opus: Fixes overflow in CNG (Closed)

Patch Set: Rebasing Created 4 years, 3 months ago

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Index: third_party/opus/src/silk/CNG.c

diff --git a/third_party/opus/src/silk/CNG.c b/third_party/opus/src/silk/CNG.c

index 8443ad63bb13cb3554b87b42a80e182fc6ccb411..701b36a38a3105dfa48dcbc54e881e49be199ff6 100644

--- a/third_party/opus/src/silk/CNG.c

+++ b/third_party/opus/src/silk/CNG.c

@@ -170,7 +170,7 @@ void silk_CNG(

}

/* Update states */

- CNG_sig_Q14[ MAX_LPC_ORDER + i ] = silk_ADD_LSHIFT( CNG_sig_Q14[ MAX_LPC_ORDER + i ], LPC_pred_Q10, 4 );

+ CNG_sig_Q14[ MAX_LPC_ORDER + i ] = silk_ADD_SAT32( CNG_sig_Q14[ MAX_LPC_ORDER + i ], silk_LSHIFT_SAT32( LPC_pred_Q10, 4 ) );

/* Scale with Gain and add to input signal */

frame[ i ] = (opus_int16)silk_ADD_SAT16( frame[ i ], silk_SAT16( silk_RSHIFT_ROUND( silk_SMULWW( CNG_sig_Q14[ MAX_LPC_ORDER + i ], gain_Q10 ), 8 ) ) );

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