Fix for decoder crash (3ef8c26d) · Commits · SA4 / Audio / IVAS BASOP

lib_dec/igf_dec_fx.c

+30 −70

Original line number	Diff line number	Diff line
		@@ -123,8 +123,8 @@ return noise;
		}

		static Word16 ivas_IGF_replaceTCXNoise_1_fx( /*< out: Q0 \| number of noise bands /
		const Word32 in, /< in: Q31 \| MDCT spectrum /
		Word16 s_l, /*< in: Q0 \| noise headroom /
		const Word32 in, /< in: in_exp \| MDCT spectrum /
		Word16 in_exp, /*< in: Q0 \| noise headroom /
		const Word16 TCXNoise, /< in: Q0 \| tcx noise indicator vector /
		const Word16 start, /*< in: Q0 \| start MDCT subband index /
		const Word16 stop, /*< in: Q0 \| stop MDCT subband index /
		@@ -132,41 +132,44 @@ static Word16 ivas_IGF_replaceTCXNoise_1_fx( /**< out: Q
		Word16 *totalNoiseNrg_exp )
		{
		Word16 sb;
		Word16 tmp16;
		Word16 tmp16, shift;
		Word16 noise;
		Word32 tmp32;
		Word64 nE;


		tmp16 = 0;
		shift = 2;
		move16();
		noise = 0;
		move16();
		s_l = sub( s_l, 5 );
		nE = 0;
		move64();

		*totalNoiseNrg = 0;
		move32();
		*totalNoiseNrg_exp = 0;
		move16();

		FOR( sb = start; sb < stop; sb++ )
		{
		IF( TCXNoise[sb] )
		{
		tmp16 = extract_h( L_shl( in[sb], s_l ) ); // Q31 + s_l
		}
		IF( TCXNoise[sb] )
		{
		nE = W_mac_16_16( nE, tmp16, tmp16 ); // Q31 + s_l
		}
		IF( TCXNoise[sb] )
		{
		noise = add( noise, 1 ); // Q0
		tmp32 = L_shr( in[sb], shift );
		nE = W_mac_32_32( nE, tmp32, tmp32 ); // 62 - (in_exp + shift + in_exp + shift + 1)
		noise = add( noise, 1 );
		}
		}

		IF( nE )
		{
		tmp16 = W_norm( nE );
		nE = W_shl( nE, tmp16 );
		*totalNoiseNrg = W_extract_h( nE );
		move32();
		*totalNoiseNrg_exp = sub( tmp16, 32 );
		*totalNoiseNrg_exp = sub( add( shl( shift, 1 ), shl( in_exp, 1 ) ), tmp16 );
		move16();
		}


		return noise;
		}
		@@ -3533,14 +3536,8 @@ void IGFDecApplyMono_ivas( const IGF_DEC_INSTANCE_HANDLE hInstance, /**< in
		specMed_e = igf_spec_e[i];
		move16();

		/14 seems to be precise enough/
		hPrivateData->headroom_TCX_noise_white = IGF_getScaleFactor32Cond(
		hInstance->infoTCXNoise_ptr,
		igf_spec + hGrid->minSrcSubband,
		sub( hGrid->startLine, hGrid->minSrcSubband ) );
		move16();
		hPrivateData->n_noise_bands = ivas_IGF_replaceTCXNoise_1_fx( igf_spec,
		hPrivateData->headroom_TCX_noise_white,
		igf_spec_e[i],
		hInstance->infoTCXNoise_ptr,
		hGrid->minSrcSubband,
		hGrid->startLine,
		@@ -3548,9 +3545,6 @@ void IGFDecApplyMono_ivas( const IGF_DEC_INSTANCE_HANDLE hInstance, /**< in
		&hPrivateData->totalNoiseNrg_exp );
		move16();

		hPrivateData->totalNoiseNrg_exp = sub( shl( sub( igf_spec_e[i], sub( hPrivateData->headroom_TCX_noise_white, 5 ) ), 1 ), hPrivateData->totalNoiseNrg_exp );
		move16();

		BREAK;
		}
		}
		@@ -3560,22 +3554,15 @@ void IGFDecApplyMono_ivas( const IGF_DEC_INSTANCE_HANDLE hInstance, /**< in
		{
		IF( EQ_16( hPrivateData->currWhiteningLevel[i], IGF_WHITENING_OFF ) )
		{
		hPrivateData->headroom_TCX_noise = IGF_getScaleFactor32Cond(
		hInstance->infoTCXNoise_ptr,
		hPrivateData->pSpecFlat + hGrid->minSrcSubband,
		sub( hGrid->startLine, hGrid->minSrcSubband ) );
		move16();

		hPrivateData->n_noise_bands_off = ivas_IGF_replaceTCXNoise_1_fx( hPrivateData->pSpecFlat,
		hPrivateData->headroom_TCX_noise,
		hPrivateData->pSpecFlat_exp,
		hInstance->infoTCXNoise_ptr,
		hGrid->minSrcSubband,
		hGrid->startLine,
		&hPrivateData->totalNoiseNrg_off,
		&hPrivateData->totalNoiseNrg_off_exp );
		move16();
		hPrivateData->totalNoiseNrg_off_exp = sub( shl( sub( hPrivateData->pSpecFlat_exp, sub( hPrivateData->headroom_TCX_noise, 5 ) ), 1 ), hPrivateData->totalNoiseNrg_off_exp );
		move16();
		BREAK;
		}
		}
		@@ -3760,12 +3747,9 @@ void IGFDecApplyStereo(
		move16();
		}

		hPrivateDataL->headroom_TCX_noise_white = IGF_getScaleFactor32Cond( hIGFDecL->infoTCXNoise_ptr + hGrid->minSrcSubband,
		igf_specL_fx + hGrid->minSrcSubband,
		sub( hGrid->startLine, hGrid->minSrcSubband ) );
		move16();

		hPrivateDataL->n_noise_bands = ivas_IGF_replaceTCXNoise_1_fx( igf_specL_fx,
		hPrivateDataL->headroom_TCX_noise_white,
		specMedL_e,
		hIGFDecL->infoTCXNoise_ptr,
		hGrid->minSrcSubband,
		hGrid->startLine,
		@@ -3773,9 +3757,6 @@ void IGFDecApplyStereo(
		&hPrivateDataL->totalNoiseNrg_exp );
		move16();

		hPrivateDataL->totalNoiseNrg_exp = sub( shl( sub( specMedL_e, sub( hPrivateDataL->headroom_TCX_noise_white, 5 ) ), 1 ), hPrivateDataL->totalNoiseNrg_exp );
		move16();

		IF( !bfi )
		{
		s_l = getScaleFactor32( hPrivateDataR->pSpecFlat + hGrid->minSrcSubband - whiteningLevel,
		@@ -3796,21 +3777,14 @@ void IGFDecApplyStereo(
		move16();
		}

		hPrivateDataR->headroom_TCX_noise_white = IGF_getScaleFactor32Cond( hIGFDecR->infoTCXNoise_ptr,
		igf_specR_fx + hGrid->minSrcSubband,
		sub( hGrid->startLine, hGrid->minSrcSubband ) );
		move16();
		hPrivateDataR->n_noise_bands = ivas_IGF_replaceTCXNoise_1_fx( igf_specR_fx,
		hPrivateDataR->headroom_TCX_noise_white,
		specMedR_e,
		hIGFDecR->infoTCXNoise_ptr,
		hGrid->minSrcSubband,
		hGrid->startLine,
		&hPrivateDataR->totalNoiseNrg,
		&hPrivateDataR->totalNoiseNrg_exp );
		move16();
		hPrivateDataR->totalNoiseNrg_exp = sub( shl( sub( specMedR_e, sub( hPrivateDataR->headroom_TCX_noise_white, 5 ) ), 1 ), hPrivateDataR->totalNoiseNrg_exp );
		move16();

		BREAK;
		}
		}
		@@ -3820,37 +3794,23 @@ void IGFDecApplyStereo(
		test();
		IF( EQ_16( hPrivateDataL->currWhiteningLevel[i], IGF_WHITENING_OFF ) \|\| EQ_16( hPrivateDataR->currWhiteningLevel[i], IGF_WHITENING_OFF ) )
		{
		hPrivateDataL->headroom_TCX_noise_white = IGF_getScaleFactor32Cond( hIGFDecL->infoTCXNoise_ptr + hGrid->minSrcSubband,
		hPrivateDataL->pSpecFlat + hGrid->minSrcSubband,
		sub( hGrid->startLine, hGrid->minSrcSubband ) );
		hPrivateDataL->n_noise_bands_off = ivas_IGF_replaceTCXNoise_1_fx( hPrivateDataL->pSpecFlat,
		hPrivateDataL->headroom_TCX_noise_white,
		hPrivateDataL->pSpecFlat_exp,
		hIGFDecL->infoTCXNoise_ptr,
		hGrid->minSrcSubband,
		hGrid->startLine,
		&hPrivateDataL->totalNoiseNrg_off,
		&hPrivateDataL->totalNoiseNrg_off_exp );
		hPrivateDataL->totalNoiseNrg_off_exp = sub( shl( sub( hPrivateDataL->pSpecFlat_exp, sub( hPrivateDataL->headroom_TCX_noise_white, 5 ) ), 1 ), hPrivateDataL->totalNoiseNrg_off_exp );
		move16();
		move16();
		move16();

		hPrivateDataR->headroom_TCX_noise_white = IGF_getScaleFactor32Cond( hIGFDecR->infoTCXNoise_ptr,
		hPrivateDataR->pSpecFlat + hGrid->minSrcSubband,
		sub( hGrid->startLine, hGrid->minSrcSubband ) );
		hPrivateDataR->n_noise_bands_off = ivas_IGF_replaceTCXNoise_1_fx( hPrivateDataR->pSpecFlat,
		hPrivateDataR->headroom_TCX_noise_white,
		hPrivateDataR->pSpecFlat_exp,
		hIGFDecR->infoTCXNoise_ptr,
		hGrid->minSrcSubband,
		hGrid->startLine,
		&hPrivateDataR->totalNoiseNrg_off,
		&hPrivateDataR->totalNoiseNrg_off_exp );
		hPrivateDataR->totalNoiseNrg_off_exp = sub( shl( sub( hPrivateDataR->pSpecFlat_exp, sub( hPrivateDataR->headroom_TCX_noise_white, 5 ) ), 1 ), hPrivateDataR->totalNoiseNrg_off_exp );
		move16();
		move16();
		move16();


		BREAK;
		}
		}