[cleanup] accept HARM_HQ_CORE (15e3c6d5) · Commits · SA4 / Audio / IVAS BASOP

lib_com/fill_spectrum_fx.c

+0 −273

Original line number	Diff line number	Diff line
		@@ -43,7 +43,6 @@
		#include "ivas_prot_fx.h"


		#ifdef HARM_HQ_CORE
		/--------------------------------------------------------------------------
		* fill_spectrum()
		*
		@@ -53,9 +52,6 @@
		--------------------------------------------------------------------------/

		void fill_spectrum_fx(
		#else
		void ivas_fill_spectrum_fx(
		#endif
		Word16 coeff, / i/o: normalized MLT spectrum / nf spectrum Q12 */
		Word32 L_coeff_out, / i/o: Noisefilled MLT spectrum Q12 */
		const Word16 R, / i : number of pulses per band Q0 */
		@@ -265,11 +261,7 @@ void ivas_fill_spectrum_fx(
		test();
		IF( EQ_16( HQ_mode, HQ_HARMONIC ) )
		{
		#ifdef HARM_HQ_CORE
		harm_bwe_fx( coeff_fine, coeff, num_sfm, sfm_start, sfm_end, last_sfm, R, prev_hq_mode, norm, noise_level, prev_noise_level, bwe_seed, L_coeff_out, element_mode );
		#else
		ivas_harm_bwe_fx( coeff_fine, coeff, num_sfm, sfm_start, sfm_end, last_sfm, R, prev_hq_mode, norm, noise_level, prev_noise_level, bwe_seed, L_coeff_out, element_mode );
		#endif
		}
		ELSE IF( EQ_16( HQ_mode, HQ_HVQ ) )
		{
		@@ -278,11 +270,7 @@ void ivas_fill_spectrum_fx(
		}
		ELSE IF( EQ_16( HQ_mode, HQ_GEN_SWB ) \|\| EQ_16( HQ_mode, HQ_GEN_FB ) )
		{
		#ifdef HARM_HQ_CORE
		hq_bwe_fx( element_mode, HQ_mode, L_coeff_out1, hq_generic_fenv, L_coeff_out, hq_generic_offset, prev_L_swb_norm, hq_generic_exc_clas, sfm_end, num_sfm, num_env_bands, R );
		#else
		hq_bwe_ivas_fx( HQ_mode, L_coeff_out1, hq_generic_fenv, L_coeff_out, hq_generic_offset, prev_L_swb_norm, hq_generic_exc_clas, sfm_end, num_sfm, num_env_bands, R );
		#endif
		}

		/----------------------------------------------------------------
		@@ -325,264 +313,3 @@ void ivas_fill_spectrum_fx(

		return;
		}
		#ifndef HARM_HQ_CORE
		void fill_spectrum_fx(
		Word16 coeff, / i/o: normalized MLT spectrum / nf spectrum Q12 */
		Word32 L_coeff_out, / i/o: Noisefilled MLT spectrum Q12 */
		const Word16 R, / i : number of pulses per band Q0 */
		const Word16 is_transient, /* i : transient flag Q0 */
		Word16 norm[], /* i : quantization indices for norms Q0 */
		const Word16 hq_generic_fenv, / i : HQ GENERIC envelope Q1 */
		const Word16 hq_generic_offset, /* i : HQ GENERIC offset Q0 */
		const Word16 nf_idx, /* i : noise fill index Q0 */
		const Word16 length, /* i : Length of spectrum (32 or 48 kHz) Q0 */
		const Word16 env_stab, /* i : Envelope stability measure [0..1] Q15 */
		Word16 no_att_hangover, / i/o: Frame counter for attenuation hangover Q0 */
		Word32 L_energy_lt, / i/o: Long-term energy measure for transient detection Q13 */
		Word16 bwe_seed, / i/o: random seed for generating BWE input Q0 */
		const Word16 hq_generic_exc_clas, /* i : BWE excitation class Q0 */
		const Word16 core_sfm, /* i : index of the end band for core Q0 */
		const Word16 HQ_mode, /* i : HQ mode Q0 */
		Word16 noise_level[], /* i : noise levels for harmonic modes Q15 */
		const Word32 L_core_brate, /* i : target bit-rate Q0 */
		Word16 prev_noise_level[], /* i/o: noise factor in previous frame Q15 */
		Word16 prev_R, / i/o: bit allocation info. in previous frame Q0 */
		Word32 prev_coeff_out, / i/o: decoded spectrum in previous frame Q12 */
		const Word16 peak_idx, / i : peak indices for hvq Q0 */
		const Word16 Npeaks, /* i : number of peaks in hvq Q0 */
		const Word16 npulses, / i : number of pulses per band Q0 */
		const Word16 prev_is_transient, /* i : previous transient flag Q0 */
		Word32 prev_normq, / i/o: previous norms Q14 */
		Word32 prev_env, / i/o: previous noise envelopes Q(prev_env_Q) */
		const Word16 prev_bfi, /* i : previous bad frame indicator Q0 */
		const Word16 sfmsize, / i : Length of bands Q0 */
		const Word16 sfm_start, / i : Start of bands Q0 */
		const Word16 sfm_end, / i : End of bands Q0 */
		Word16 prev_L_swb_norm, / i/o: HVQ/Harmonic mode normalization length Q0 */
		const Word16 prev_hq_mode, /* i : Previous HQ mode Q0 */
		const Word16 num_sfm, /* i : Total number of bands Q0 */
		Word16 *prev_env_Q,
		const Word16 num_env_bands, /* i : Number sub bands to be encoded for HQ_GEN Q0 */
		const Word16 element_mode /* i : IVAS element mode */
		)
		{
		Word16 CodeBook[FREQ_LENGTH]; /* Q12 */
		Word16 cb_size;
		Word16 last_sfm;
		Word16 CodeBook_mod[FREQ_LENGTH]; /Q12 /
		Word16 norm_adj[NB_SFM]; /Q15 /
		Word16 high_sfm;
		Word16 flag_32K_env_hangover;
		Word16 bin_th;
		Word16 peak_pos[L_HARMONIC_EXC];
		Word16 bwe_peaks[L_FRAME48k];
		Word32 L_normq_v[NB_SFM]; /Q14 /
		Word16 coeff_fine[L_SPEC48k_EXT]; /Q15 /
		Word32 L_coeff_out1[L_SPEC48k_EXT]; /Q12 /
		set16_fx( peak_pos, 0, L_HARMONIC_EXC );
		set16_fx( bwe_peaks, 0, L_FRAME48k );
		set16_fx( norm_adj, 32767, num_sfm ); /* 1.0, Q15 */
		cb_size = 0;
		move16();
		bin_th = 0;
		move16();
		high_sfm = 23;
		move16();

		test();
		IF( EQ_16( HQ_mode, HQ_TRANSIENT ) )
		{
		last_sfm = sub( num_sfm, 1 );
		}
		ELSE IF( EQ_16( HQ_mode, HQ_GEN_SWB ) \|\| EQ_16( HQ_mode, HQ_GEN_FB ) )
		{
		last_sfm = s_max( core_sfm, sub( num_env_bands, 1 ) );
		}
		ELSE
		{
		last_sfm = core_sfm;
		move16();
		}

		IF( EQ_16( HQ_mode, HQ_HARMONIC ) )
		{
		/high_sfm = (core_brate == HQ_BWE_CROSSOVER_BRATE) ? HVQ_THRES_SFM_24k-1 : HVQ_THRES_SFM_32k-3; /
		high_sfm = sub( HVQ_THRES_SFM_32k, 1 );
		if ( LT_32( L_core_brate, HQ_BWE_CROSSOVER_BRATE ) )
		{
		high_sfm = sub( HVQ_THRES_SFM_24k, 1 );
		}

		if ( LT_16( last_sfm, high_sfm ) )
		{
		last_sfm = high_sfm;
		move16();
		}
		}
		ELSE IF( EQ_16( HQ_mode, HQ_HVQ ) )
		{
		bin_th = sfm_end[last_sfm];
		move16();
		}

		/* Transient analysis for envelope stability measure */
		IF( EQ_16( length, L_FRAME32k ) )
		{
		env_stab_transient_detect_fx( is_transient, length, norm, no_att_hangover, L_energy_lt, HQ_mode, bin_th, L_coeff_out, 12 );
		}

		test();
		test();
		test();
		test();
		IF( EQ_16( length, L_FRAME16k ) \|\|
		( ( EQ_16( length, L_FRAME32k ) && NE_16( HQ_mode, HQ_HARMONIC ) && NE_16( HQ_mode, HQ_HVQ ) ) && *no_att_hangover == 0 ) )
		{
		/* Norm adjustment function */
		env_adj_fx( npulses, length, last_sfm, norm_adj, env_stab, sfmsize );
		}

		/flag_32K_env_hangover = ( length == L_FRAME32k && ( (env_stab < 0.5f && no_att_hangover == 0) \|\| HQ_mode == HQ_HVQ ) ); */
		flag_32K_env_hangover = 0;
		move16();
		test();
		test();
		test();
		if ( EQ_16( length, L_FRAME32k ) && ( ( LT_16( env_stab, 16384 /0.5.Q15/ ) && *no_att_hangover == 0 ) \|\| EQ_16( HQ_mode, HQ_HVQ ) ) )
		{
		flag_32K_env_hangover = 1;
		move16();
		}


		/----------------------------------------------------------------
		* Build noise-fill codebook
		----------------------------------------------------------------/

		IF( NE_16( HQ_mode, HQ_HVQ ) )
		{
		cb_size = build_nf_codebook_fx( flag_32K_env_hangover, coeff, sfm_start, sfmsize, sfm_end, last_sfm, R, CodeBook, CodeBook_mod );
		}
		/----------------------------------------------------------------
		* Prepare fine structure for Harmonic and HVQ
		----------------------------------------------------------------/

		IF( EQ_16( HQ_mode, HQ_HARMONIC ) )
		{
		harm_bwe_fine_fx( R, last_sfm, high_sfm, num_sfm, norm, sfm_start, sfm_end, prev_L_swb_norm, coeff, L_coeff_out, coeff_fine );
		}
		ELSE IF( EQ_16( HQ_mode, HQ_HVQ ) )
		{
		hvq_bwe_fine_fx( last_sfm, num_sfm, sfm_end, peak_idx, Npeaks, peak_pos, prev_L_swb_norm, L_coeff_out, bwe_peaks, coeff_fine );
		}

		/----------------------------------------------------------------
		* Apply noise-fill
		----------------------------------------------------------------/

		test();
		IF( NE_16( HQ_mode, HQ_HVQ ) && cb_size > 0 )
		{
		apply_noisefill_HQ_fx( R, length, flag_32K_env_hangover, L_core_brate, last_sfm, CodeBook,
		CodeBook_mod, cb_size, sfm_start, sfm_end, sfmsize, coeff );
		}

		/----------------------------------------------------------------
		* Normal mode BWE
		----------------------------------------------------------------/

		IF( HQ_mode == HQ_NORMAL )
		{
		hq_fold_bwe_fx( last_sfm, sfm_end, num_sfm, coeff );
		}

		/----------------------------------------------------------------
		* Apply noise-fill adjustment
		----------------------------------------------------------------/

		test();
		test();
		test();
		IF( ( GE_16( length, L_FRAME32k ) \|\| GT_32( L_core_brate, HQ_32k ) \|\| LT_32( L_core_brate, HQ_24k40 ) ) && NE_16( HQ_mode, HQ_HVQ ) )
		{
		apply_nf_gain_fx( nf_idx, last_sfm, R, sfm_start, sfm_end, coeff );
		}

		/----------------------------------------------------------------
		* Prepare fine strucutre for HQ GENERIC
		----------------------------------------------------------------/
		test();
		IF( EQ_16( HQ_mode, HQ_GEN_SWB ) \|\| EQ_16( HQ_mode, HQ_GEN_FB ) )
		{
		hq_generic_fine_fx( coeff, last_sfm, sfm_start, sfm_end, bwe_seed, coeff_fine );
		}

		/----------------------------------------------------------------
		* Apply envelope
		----------------------------------------------------------------/

		test();
		IF( NE_16( HQ_mode, HQ_HARMONIC ) && NE_16( HQ_mode, HQ_HVQ ) )
		{
		apply_envelope_fx( coeff, norm, norm_adj, num_sfm, last_sfm, HQ_mode, length, sfm_start, sfm_end,
		L_normq_v, L_coeff_out, coeff_fine, L_coeff_out1 );
		}

		/----------------------------------------------------------------
		* Harmonic BWE, HVQ BWE and HQ SWB BWE
		----------------------------------------------------------------/
		test();
		IF( EQ_16( HQ_mode, HQ_HARMONIC ) )
		{
		harm_bwe_fx( coeff_fine, coeff, num_sfm, sfm_start, sfm_end, last_sfm, R, prev_hq_mode, norm, noise_level, prev_noise_level, bwe_seed, L_coeff_out, element_mode );
		}
		ELSE IF( EQ_16( HQ_mode, HQ_HVQ ) )
		{
		hvq_bwe_fx( L_coeff_out, coeff_fine, sfm_start, sfm_end, sfmsize, last_sfm, prev_hq_mode, bwe_peaks, bin_th, num_sfm, L_core_brate, R, norm,
		noise_level, prev_noise_level, bwe_seed, L_coeff_out, 15, 12 );
		}
		ELSE IF( EQ_16( HQ_mode, HQ_GEN_SWB ) \|\| EQ_16( HQ_mode, HQ_GEN_FB ) )
		{
		hq_bwe_fx( HQ_mode, L_coeff_out1, hq_generic_fenv, L_coeff_out, hq_generic_offset, prev_L_swb_norm, hq_generic_exc_clas, sfm_end, num_sfm, num_env_bands, R );
		}

		/----------------------------------------------------------------
		* HQ WB BWE refinements
		----------------------------------------------------------------/
		test();
		IF( EQ_16( length, L_FRAME16k ) && LE_32( L_core_brate, HQ_32k ) )
		{
		hq_wb_nf_bwe_fx( coeff, is_transient, prev_bfi, L_normq_v, num_sfm, sfm_start, sfm_end, sfmsize, last_sfm, R,
		prev_is_transient, prev_normq, prev_env, bwe_seed, prev_coeff_out, prev_R, L_coeff_out, prev_env_Q );
		}

		/----------------------------------------------------------------
		* Update memories
		----------------------------------------------------------------/

		test();
		IF( NE_16( HQ_mode, HQ_HARMONIC ) && NE_16( HQ_mode, HQ_HVQ ) )
		{
		prev_noise_level[0] = 3277;
		move16(); /* 0.1 in Q15 */
		prev_noise_level[1] = 3277;
		move16(); /* 0.1 in Q15 */
		}
		test();
		IF( !( EQ_16( length, L_FRAME16k ) && LE_32( L_core_brate, HQ_32k ) ) )
		{
		set32_fx( prev_env, 0, SFM_N_WB );
		set32_fx( prev_normq, 0, SFM_N_WB );
		}

		test();
		IF( EQ_16( length, L_FRAME32k ) && LE_32( L_core_brate, HQ_32k ) )
		{
		*prev_R = R[SFM_N_WB - 1];
		move16();
		Copy32( L_coeff_out + L_FRAME16k - L_HQ_WB_BWE, prev_coeff_out, L_HQ_WB_BWE );
		}

		return;
		}
		#endif

lib_com/fine_gain_bits_fx.c

+0 −93

Original line number	Diff line number	Diff line
		@@ -16,9 +16,7 @@
		--------------------------------------------------------------------------/

		static void subband_gain_bits_fx(
		#ifdef HARM_HQ_CORE
		const Word16 element_mode, /* i : element mode */
		#endif
		const Word16 Rk, / i : bit allocation per band Q3 */
		const Word16 N, /* i : number of bands */
		Word16 bits, / o : gain bits per band */
		@@ -34,13 +32,11 @@ static void subband_gain_bits_fx(
		FOR( i = 0; i < N; i++ )
		{
		/bps = (short)(Rk[i]((word16)min(32767, ceil(32767.0f/sfmsize[i]); inexact C-integer division approx. */
		#ifdef HARM_HQ_CORE
		if ( element_mode > EVS_MONO )
		{
		bps = extract_l( L_shr( L_mult0( Rk[i], fg_inv_tbl_fx[sfmsize[i] >> 3] ), 18 ) ); /* 3+15 */
		}
		ELSE
		#endif
		{
		bps = extract_l( L_shr( L_mult0( Rk[i], inv_tbl_fx[sfmsize[i]] ), 18 ) ); /* 3+15 */
		}
		@@ -76,9 +72,7 @@ static void subband_gain_bits_fx(

		/* o : Number of assigned gain bits */
		Word16 assign_gain_bits_fx(
		#ifdef HARM_HQ_CORE
		const Word16 element_mode, /* i : element mode */
		#endif
		const Word16 core, /* i : HQ core */
		const Word16 BANDS, /* i : Number of bands */
		const Word16 band_width, / i : Sub band bandwidth */
		@@ -93,11 +87,7 @@ Word16 assign_gain_bits_fx(
		/* Allocate gain bits for every subband used, based on bit rate and bandwidth */
		IF( EQ_16( core, HQ_CORE ) )
		{
		#ifdef HARM_HQ_CORE
		subband_gain_bits_fx( element_mode, Rk, BANDS, gain_bits_array, band_width );
		#else
		subband_gain_bits_fx( Rk, BANDS, gain_bits_array, band_width );
		#endif
		}
		ELSE
		{
		@@ -123,86 +113,3 @@ Word16 assign_gain_bits_fx(

		return gain_bits_tot;
		}
		#ifndef HARM_HQ_CORE
		static void ivas_subband_gain_bits_fx(
		const Word16 Rk, / i : bit allocation per band Q3 */
		const Word16 N, /* i : number of bands */
		Word16 bits, / o : gain bits per band */
		const Word16 sfmsize / i : Size of bands */
		)
		{
		Word16 i, b, tot;
		Word16 bps;

		tot = 0;
		move16();

		FOR( i = 0; i < N; i++ )
		{
		/bps = (short)(Rk[i]((word16)min(32767, ceil(32767.0f/sfmsize[i]); inexact C-integer division approx. */
		bps = extract_l( L_shr( L_mult0( Rk[i], fg_inv_tbl_fx[sfmsize[i] >> 3] ), 18 ) ); /* 3+15 */
		if ( EQ_32( L_shl( L_mult0( sfmsize[i], add( bps, 1 ) ), 3 ), Rk[i] ) )
		{
		bps = add( bps, 1 );
		}

		bps = s_min( 7, bps );
		b = fine_gain_bits[bps];
		move16();
		bits[i] = b;
		move16();
		tot = add( tot, b );
		}

		if ( tot == 0 )
		{
		/* If no gain bits were assigned, use one bit anyway for potential PVQ overage */
		bits[0] = 1;
		move16();
		}

		return;
		}

		Word16 ivas_assign_gain_bits_fx( /* o : Number of assigned gain bits */
		const Word16 core, /* i : HQ core */
		const Word16 BANDS, /* i : Number of bands */
		const Word16 band_width, / i : Sub band bandwidth */
		Word16 Rk, / i/o: Bit allocation/Adjusted bit alloc. Q3 */
		Word16 gain_bits_array, / o : Assigned gain bits */
		Word16 Rcalc / o : Bit budget for shape quantizer Q3 */
		)
		{
		Word16 gain_bits_tot;
		Word16 i;

		/* Allocate gain bits for every subband used, based on bit rate and bandwidth */
		IF( EQ_16( core, HQ_CORE ) )
		{
		ivas_subband_gain_bits_fx( Rk, BANDS, gain_bits_array, band_width );
		}
		ELSE
		{
		set16_fx( gain_bits_array, 0, BANDS );
		}

		/* Re-adjust bit budget for gain quantization */
		gain_bits_tot = 0;
		move16();
		*Rcalc = 0;
		move16();
		FOR( i = 0; i < BANDS; i++ )
		{
		IF( Rk[i] > 0 )
		{
		Rk[i] = sub( Rk[i], shl( gain_bits_array[i], 3 ) );
		move16();
		gain_bits_tot = add( gain_bits_tot, gain_bits_array[i] );
		Rcalc = add( Rcalc, Rk[i] );
		move16();
		}
		}

		return gain_bits_tot;
		}
		#endif

lib_com/hq_bit_allocation_fx.c

+0 −221

Original line number	Diff line number	Diff line
		@@ -14,11 +14,7 @@
		* Assign bits for HQ fine structure coding with PVQ
		--------------------------------------------------------------------------/

		#ifdef HARM_HQ_CORE
		void hq_bit_allocation_fx(
		#else
		void ivas_hq_bit_allocation_fx(
		#endif
		const Word32 core_brate, /* i : Core bit-rate Q0 */
		const Word16 length, /* i : Frame length Q0 */
		const Word16 hqswb_clas, /* i : HQ class Q0 */
		@@ -231,220 +227,3 @@ void ivas_hq_bit_allocation_fx(

		return;
		}
		#ifndef HARM_HQ_CORE

		void hq_bit_allocation_fx(
		const Word32 core_brate, /* i : Core bit-rate Q0 */
		const Word16 length, /* i : Frame length Q0 */
		const Word16 hqswb_clas, /* i : HQ class Q0 */
		Word16 num_bits, / i/o: Remaining bit budget Q0 */
		const Word16 normqlg2, / i : Quantized norms Q0 */
		const Word16 nb_sfm, /* i : Number sub bands to be encoded Q0 */
		const Word16 sfmsize, / i : Sub band bandwidths Q0 */
		Word16 noise_level, / o : HVQ noise level Q15 */
		Word16 R, / o : Bit allocation per sub band Q0 */
		Word16 Rsubband, / o : Fractional bit allocation Q3 */
		Word16 sum, / o : Sum of allocated shape bits Q0 */
		Word16 core_sfm, / o : Last coded band in core Q0 */
		const Word16 num_env_bands /* i : Number sub bands to be encoded for HQ_GEN Q0 */
		)
		{
		Word16 i;
		Word16 idx[NB_SFM];
		Word16 wnorm[NB_SFM];
		Word16 avrg_wnorm;
		Word16 tmp, tmp2;
		Word16 E_low;
		Word16 E_hb_mean;
		Word16 E_max;
		Word16 i_max;
		/* Temp */

		Word16 sfm_limit = nb_sfm;
		move16();

		set16_fx( R, 0, NB_SFM );
		FOR( i = 0; i < nb_sfm; i++ )
		{
		idx[i] = i;
		move16();
		}
		test();
		test();
		test();
		if ( NE_16( hqswb_clas, HQ_TRANSIENT ) && NE_16( hqswb_clas, HQ_HVQ ) && !( EQ_16( length, L_FRAME16k ) && EQ_32( core_brate, HQ_32k ) ) )
		{
		/* 'nf_idx' 2-bits index written later */
		num_bits = sub( num_bits, 2 );
		}

		test();
		IF( EQ_16( hqswb_clas, HQ_GEN_SWB ) \|\| EQ_16( hqswb_clas, HQ_GEN_FB ) )
		{
		IF( EQ_32( core_brate, HQ_32k ) )
		{
		num_bits = sub( num_bits, HQ_GENERIC_SWB_NBITS2 );
		move16();
		}
		ELSE
		{
		num_bits = sub( num_bits, HQ_GENERIC_SWB_NBITS );
		move16();
		}

		if ( EQ_16( hqswb_clas, HQ_GEN_FB ) )
		{
		num_bits = sub( num_bits, HQ_GENERIC_FB_NBITS );
		move16();
		}
		}

		test();
		test();
		IF( ( EQ_16( length, L_FRAME48k ) ) && ( NE_16( hqswb_clas, HQ_HARMONIC ) ) && ( NE_16( hqswb_clas, HQ_HVQ ) ) )
		{
		tmp = 0;
		move16();
		if ( EQ_16( hqswb_clas, HQ_TRANSIENT ) )
		{
		tmp = 1;
		move16();
		}
		map_quant_weight_fx( normqlg2, wnorm, tmp );
		}
		ELSE
		{
		Copy( normqlg2, wnorm, nb_sfm );
		}

		IF( EQ_16( hqswb_clas, HQ_HARMONIC ) )
		{
		/* classification and limit bandwidth for bit allocation */
		sfm_limit = sub( sfm_limit, 2 );
		limit_band_noise_level_calc_fx( wnorm, &sfm_limit, core_brate, noise_level );

		/* Detect important band in high frequency region */
		E_low = sum16_fx( wnorm, SFM_G1 );
		i_max = 0;
		move16();
		E_max = MIN16B;
		move16();
		E_hb_mean = 0;
		move16();
		FOR( i = SFM_G1; i < nb_sfm; i++ )
		{
		E_hb_mean = add( E_hb_mean, wnorm[i] );
		IF( GT_16( wnorm[i], E_max ) )
		{
		E_max = wnorm[i];
		move16();
		i_max = i;
		move16();
		}
		}
		E_hb_mean = shr( E_hb_mean, 4 ); /* Truncated division by SFM_G1 */
		set16_fx( wnorm + sfm_limit, -20, sub( nb_sfm, sfm_limit ) );
		IF( L_msu0( L_deposit_l( E_low ), E_max, 15 ) <= 0 )
		{
		IF( L_msu( L_deposit_h( E_hb_mean ), E_max, 21955 ) <= 0 ) /* 21955 = 0.67 (Q15) */
		{
		if ( GE_16( i_max, sfm_limit ) )
		{
		wnorm[i_max] = E_max;
		move16();
		}
		}
		}
		}
		test();
		test();
		test();
		test();
		IF( EQ_16( hqswb_clas, HQ_HVQ ) )
		{
		*sum = 0;
		move16();
		}
		ELSE IF( EQ_16( hqswb_clas, HQ_GEN_SWB ) \|\| ( EQ_16( hqswb_clas, HQ_TRANSIENT ) && EQ_16( length, L_FRAME32k ) && LE_32( core_brate, HQ_32k ) ) )
		{
		sum = BitAllocF_fx( wnorm, core_brate, num_bits, nb_sfm, R, Rsubband, hqswb_clas, num_env_bands );
		move16();
		}
		ELSE IF( EQ_16( length, L_FRAME16k ) && EQ_32( core_brate, HQ_32k ) )
		{
		IF( NE_16( hqswb_clas, HQ_TRANSIENT ) )
		{
		avrg_wnorm = wnorm[10];
		move16();
		FOR( i = 11; i < 18; i++ )
		{
		avrg_wnorm = add( avrg_wnorm, wnorm[i] );
		}

		avrg_wnorm = shr( avrg_wnorm, 3 );
		FOR( i = 0; i < 4; i++ )
		{
		if ( LT_16( wnorm[i], avrg_wnorm ) )
		{
		wnorm[i] = avrg_wnorm;
		move16();
		}
		}

		/* Estimate number of bits per band */
		sum = BitAllocWB_fx( wnorm, num_bits, nb_sfm, R, Rsubband );
		move16();
		}
		ELSE
		{
		reordvct_fx( wnorm, nb_sfm, idx );
		bitalloc_fx( wnorm, idx, *num_bits, nb_sfm, QBIT_MAX2, R, sfmsize, hqswb_clas );
		bitallocsum_fx( R, nb_sfm, sum, Rsubband, *num_bits, length, sfmsize );
		}
		}
		ELSE
		{
		reordvct_fx( wnorm, nb_sfm, idx );

		/* enlarge the wnorm value so that more bits can be allocated to (sfm_limit/2 ~ sfm_limit) range */
		IF( EQ_16( hqswb_clas, HQ_HARMONIC ) )
		{
		tmp = shr( sfm_limit, 1 );
		tmp2 = sub( tmp, 1 );
		FOR( i = tmp; i < sfm_limit; i++ )
		{
		wnorm[i] = wnorm[tmp2];
		move16();
		}
		}
		bitalloc_fx( wnorm, idx, *num_bits, nb_sfm, QBIT_MAX2, R, sfmsize, hqswb_clas );
		bitallocsum_fx( R, nb_sfm, sum, Rsubband, *num_bits, length, sfmsize );
		}

		/* Find last coded core band */
		*core_sfm = sub( nb_sfm, 1 );
		move16();
		test();
		test();
		IF( hqswb_clas == HQ_NORMAL \|\| EQ_16( hqswb_clas, HQ_HARMONIC ) )
		{
		*core_sfm = find_last_band_fx( R, nb_sfm );
		move16();
		}
		ELSE IF( EQ_16( hqswb_clas, HQ_GEN_SWB ) \|\| EQ_16( hqswb_clas, HQ_GEN_FB ) )
		{
		*core_sfm = find_last_band_fx( R, nb_sfm );
		move16();
		IF( LT_16( *core_sfm, num_env_bands ) )
		{
		*core_sfm = sub( num_env_bands, 1 );
		move16();
		}
		}

		num_bits = sub( num_bits, *sum );
		move16();

		return;
		}
		#endif

lib_com/hq_conf_fx.c

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lib_com/hq_tools_fx.c

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