Fix for SSNR deviation observed for one STV case (3d860400) · Commits · SA4 / Audio / IVAS BASOP

lib_enc/ACcontextMapping_enc_fx.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -1251,6 +1251,7 @@ Word16 RCcontextMapping_encode2_estimate_no_mem_s17_LCS_fx(

		#ifdef OPT_SBA_ENC_V2_BE
		Word16 round_bit_estimate_fx;
		Word32 target_Q15 = L_shl( target, Q15 ); // Q15
		#endif

		WHILE( LT_16( k, nt / 2 ) )
		@@ -1388,7 +1389,7 @@ Word16 RCcontextMapping_encode2_estimate_no_mem_s17_LCS_fx(
		bit_estimate_fx = W_add( bit_estimate_fx, ari_bit_estimate_s17_LC_fx[pki][symbol] );

		#ifdef OPT_SBA_ENC_V2_BE
		IF( GT_64( bit_estimate_fx, W_shl( target, Q23 ) ) ) // Q23
		IF( GT_32( W_shl_sat_l( bit_estimate_fx, -Q8 ), target_Q15 ) ) // Q15
		#else
		/* Should we truncate? */
		IF( GT_32( W_extract_l( W_shr( bit_estimate_fx, Q8 ) ), L_shl( target, Q15 ) ) )
		@@ -1607,7 +1608,7 @@ Word16 RCcontextMapping_encode2_estimate_no_mem_s17_LCS_fx(

		/* Should we truncate? */
		#ifdef OPT_SBA_ENC_V2_BE
		IF( GT_64( bit_estimate_fx, W_shl( target, Q23 ) ) ) // Q23
		IF( GT_32( W_shl_sat_l( bit_estimate_fx, -Q8 ), target_Q15 ) ) // Q15
		#else
		IF( GT_32( W_extract_l( W_shr( bit_estimate_fx, Q8 ) ), L_shl( target, Q15 ) ) )
		#endif