Core coder functions conversion and integration: acelp core, stereo tcx core (437133dc) · Commits · SA4 / Audio / IVAS BASOP

lib_com/cnst.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -209,6 +209,15 @@ enum{
		#define L_FRAME8k 160 /* Frame size in samples at 8kHz */
		#define L_FRAME4k 80 /* Frame size in samples at 4kHz */

		#define ONE_BY_L_FRAME48k_Q31 2236962
		#define ONE_BY_L_FRAME32k_Q31 3355443
		#define ONE_BY_L_FRAME25_6k_Q31 4194304
		#define ONE_BY_L_FRAME16k_Q31 6710886
		#define ONE_BY_L_FRAME_Q31 8388608
		#define ONE_BY_240_Q31 8947849
		#define ONE_BY_L_FRAME8k_Q31 13421772
		#define ONE_BY_L_FRAME4k_Q31 26843546

		#define L_SPEC48k 800 /* HQ spectrum length at 48kHz */
		#define L_SPEC32k 640 /* HQ spectrum length at 32kHz */
		#define L_SPEC16k 320 /* HQ spectrum length at 16kHz */
		@@ -737,6 +746,7 @@ enum
		#define PIT_L_INTERPOL6_2 17
		#define PIT_FIR_SIZE6_2 ( PIT_UP_SAMP6 * PIT_L_INTERPOL6_2 + 1 )
		#define E_MIN 0.0035f /* minimum allowable energy */
		#define E_MIN_Q11_FX 7 /* minimum allowable energy in Q11*/
		#define STEP_DELTA 0.0625f /* quantization step for tilt compensation of gaussian cb. excitation */
		#define GAMMA_EV 0.92f /* weighting factor for core synthesis error weighting */
		#define FORMANT_SHARPENING_NOISE_THRESHOLD 21.0f /* lp_noise level above which formant sharpening is deactivated */
		@@ -2752,6 +2762,7 @@ enum
		#define Fs_2_16k 20480 /* lsf max value (Use in reorder_fx.c) */

		#define LG10 24660 /* 10log10(2) in Q13 /
		#define TEN_MULT_LOG10_2_IN_Q29 1616142464 /* (10 * log10(2)) = 3.0103 (in Q29) */
		#define LG10_s3_0 16440 /* 10log10(2)/1.55 = 1.00343331 in Q14 /
		#define LOG2_10 27213 /* log base 2 of 10 in Q12 */
		#define LOG2_10_Q29 1783446566 /* log base 2 of 10 in Q12 */

lib_com/ivas_prot.h

+32 −3

Original line number	Diff line number	Diff line
		@@ -703,6 +703,7 @@ void stereo_tcx_init_enc(
		Encoder_State st / i/o: encoder state structure */
		);

		#ifndef IVAS_FLOAT_FIXED
		void stereo_tcx_core_enc(
		Encoder_State st, / i/o: encoder state structure */
		const float new_samples_12k8[], /* i : buffer of input signal @12.8 kHz */
		@@ -715,7 +716,6 @@ void stereo_tcx_core_enc(
		const int16_t vad_hover_flag /* i : VAD hangover flag */
		);

		#ifndef IVAS_FLOAT_FIXED
		void stereo_tcx_core_dec(
		Decoder_State st, / i/o: decoder state structure */
		const FRAME_MODE frameMode, /* i : Decoder frame mode */
		@@ -3102,7 +3102,17 @@ void TNSAnalysisStereo(
		int16_t param_core[][NB_DIV * NPRM_DIV], /* o : quantized noise filling level */
		const int16_t mct_on /* i : flag mct block (1) or stereo (0) */
		);

		#ifdef IVAS_FLOAT_FIXED
		void TNSAnalysisStereo_fx(
		Encoder_State *sts, / i : encoder state handle */
		Word32 mdst_spectrum_fx[CPE_CHANNELS][NB_DIV], / o : MDST spectrum Qx*/
		const Word16 bWhitenedDomain, /* i : whitened domain flag Q0*/
		Word16 tnsSize[CPE_CHANNELS][NB_DIV], /* i : number of tns parameters put into prm Q0*/
		Word16 tnsBits[CPE_CHANNELS][NB_DIV], /* i : number of tns bits in the frame Q0*/
		Word16 param_core[][NB_DIV * NPRM_DIV], /* o : TNS parameters Q0*/
		const Word16 mct_on /* i : flag mct block (1) or stereo (0) Q0*/
		);
		#endif
		void InternalTCXDecoder(
		Encoder_State st, / i/o: state handle */
		const int16_t frame_cnt, /* i : frame counter in the super_frame */
		@@ -3681,7 +3691,26 @@ ivas_error front_vad(
		float PS_out, / o : energy spectrum */
		float Bin_E_out / o : log-energy spectrum of the current frame*/
		);

		#ifdef IVAS_FLOAT_FIXED
		ivas_error front_vad_fx(
		CPE_ENC_HANDLE hCPE, /* i/o: CPE encoder structure, nullable */
		Encoder_State st, / i/o: encoder state structure */
		const ENCODER_CONFIG_HANDLE hEncoderConfig, /* i : configuration structure */
		FRONT_VAD_ENC_HANDLE hFrontVads, / i/o: front-VAD handles */
		const int16_t MCT_flag, /* i : hMCT handle allocated (1) or not (0) */
		const int16_t input_frame, /* i : frame length */
		int16_t vad_flag_dtx[], /* o : HE-SAD flag with additional DTX HO */
		float fr_bands[][2 * NB_BANDS], /* i : energy in frequency bands */
		float Etot_LR[], /* o : total energy Left & Right channel */
		float lf_E[][2 * VOIC_BINS], /* i : per bin spectrum energy in lf, LR channels */
		int16_t localVAD_HE_SAD[], /* o : HE-SAD flag without hangover, LR channels */
		int16_t vad_hover_flag[], /* o : VAD hangover flag */
		float band_energies_LR[2 * NB_BANDS], /* o : energy in critical bands without minimum noise floor E_MIN */
		float PS_out, / o : energy spectrum */
		float Bin_E_out, / o : log-energy spectrum of the current frame*/
		Word16 Qinp
		);
		#endif
		ivas_error front_vad_spar(
		SPAR_ENC_HANDLE hSpar, /* i/o: SPAR encoder structure */
		const float omni_in, / i : omnidirectional input signal */

lib_com/ivas_prot_fx.h

+49 −5

Original line number	Diff line number	Diff line
		@@ -296,10 +296,10 @@ Word16 res_bpf_adapt_fx(

		// ivas_sns_com_fx.c
		void sns_compute_scf_fx(
		Word32 spectrum[],
		Word32 spectrum[], /* i : Spectrum (Q_in) */
		const PsychoacousticParameters *pPsychParams,
		const Word16 L_frame,
		Word32 *scf,
		Word32 scf, / o : Scalefactors (Q16)*/
		Word16 q );

		void sns_interpolate_scalefactors_fx(
		@@ -1402,10 +1402,18 @@ void dtx_read_padding_bits_fx(
		DEC_CORE_HANDLE st,
		const Word16 num_bits );

		void FdCngEncodeMDCTStereoSID_fx(
		CPE_ENC_HANDLE hCPE /* i/o: CPE encoder state structure */
		);

		void FdCngDecodeMDCTStereoSID_fx(
		CPE_DEC_HANDLE hCPE /* i/o: CPE decoder state structure */
		);

		void FdCngEncodeDiracMDCTStereoSID_fx(
		CPE_ENC_HANDLE hCPE /* i/o: CPE encoder state structure */
		);

		void FdCngDecodeDiracMDCTStereoSID_fx(
		CPE_DEC_HANDLE hCPE /* i/o: CPE decoder state structure */
		);
		@@ -2700,7 +2708,6 @@ void rc_uni_enc_encode_bits(
		const Word16 bits /* i : Number of bits */
		);

		#ifdef IVAS_FLOAT_FIXED
		void stereo_dft_enc_process_fx(
		CPE_ENC_HANDLE hCPE, /* i/o: CPE encoder structure */
		const Word16 vad_flag_dtx[], /* i : VAD dtx flags */
		@@ -2708,6 +2715,32 @@ void stereo_dft_enc_process_fx(
		const Word16 input_frame /* i : input frame length */
		);

		void stereo_dft_cng_side_gain_fx(
		STEREO_DFT_ENC_DATA_HANDLE hStereoDft, /* i/o: DFT stereo handle */
		STEREO_CNG_ENC_HANDLE hStereoCng, /* i/o: Stereo CNG data structure */
		const Word32 core_brate, /* i : core bitrate */
		const Word32 last_core_brate, /* i : last core bitrate */
		const Word16 bwidth /* i : audio band-width */
		);

		Word16 quantize_sns_fx(
		Word32 sns_in_fx[CPE_CHANNELS][NB_DIV][M], /* sns_e */
		Word32 snsQ_out_fx[CPE_CHANNELS][NB_DIV][M], /* sns_e */
		Word16 *sns_e,
		Encoder_State **sts,
		Word16 indices, / Q0 */
		Word16 zero_side_flag, / Q0 */
		Word16 sns_stereo_mode ); / Q0 */

		void stereo_cng_upd_counters_fx(
		STEREO_CNG_ENC_HANDLE hStereoCng, /* i/o: Stereo CNG data structure */
		const Word32 element_mode, /* i : element mode */
		const Word16 nbands, /* i : Number of bands in active */
		const Word32 sidSideGain[], /* i : SID side gains */
		const Word16 burst_ho_count, /* i : Hang-over count */
		Word16 coh_fade_counter / i : Coherence fade counter */
		);

		void spectral_balancer_fx16(
		Word16 signal, / i/o : signal Qx */
		Word16 mem, / i/o : mem Qx */
		@@ -2763,8 +2796,6 @@ void acelp_fast_fx(
		const Word16 L_subfr /* i : subframe length */
		);

		#endif

		void ivas_mdct_quant_coder_fx(
		CPE_ENC_HANDLE hCPE, /* i/o: Encoder CPE handle */
		Word16 tnsBits[CPE_CHANNELS][NB_DIV], /* i : bits needed for TNS parameters */
		@@ -2819,4 +2850,17 @@ void InternalTCXDecoder_fx(
		Word16 synth[], /* o : time domain signal */
		Word16 gain_tcx_q / o : quantized global gain (at low bitrates) */
		);

		void stereo_tcx_core_enc(
		Encoder_State st, / i/o: encoder state structure */
		const float new_samples_12k8[], /* i : buffer of input signal @12.8 kHz */
		const float new_samples_16k[], /* i : buffer of input signal @16 kHz */
		const Word16 Aw_fx[], /* i : weighted A(z) unquant. for subframes, Q12 */
		float lsp_new[], /* i : LSPs at the end of the frame, Q15 */
		float lsp_mid[], /* i : LSPs in the middle of the frame, Q15 */
		Word16 pitch_buf_fx[NB_SUBFR16k], /* o : pitch for each subframe, Q6 */
		const Word16 last_element_mode, /* i : last element mode, Q0 */
		const Word16 vad_hover_flag /* i : VAD hangover flag, Q0 */
		);

		#endif

lib_com/ivas_sns_com_fx.c

+82 −61

Original line number	Diff line number	Diff line
		@@ -50,22 +50,24 @@
		-------------------------------------------------------------------/

		void sns_compute_scf_fx(
		Word32 spectrum[],
		Word32 spectrum[], /* i : Spectrum (Q_in) */
		const PsychoacousticParameters *pPsychParams,
		const Word16 L_frame,
		Word32 *scf,
		Word32 scf, / o : Scalefactors (Q16)*/
		Word16 q )
		{
		Word16 i, n, k, exp;
		Word16 i, n, k;
		Word32 x[FDNS_NPTS], xs[FDNS_NPTS], mean, xl4[SNS_NPTS], nf, xl[FDNS_NPTS];
		Word64 x_64[FDNS_NPTS];
		Word64 sum;
		Word32 L_tmp;
		const Word16 *pow_tilt;
		const Word32 *pow_tilt;
		const UWord8 nBands = pPsychParams->nBands;
		move16();
		const UWord8 *bandLengths = pPsychParams->bandLengths;
		Word8 bw = 0;
		move16();
		Word16 q_shift;

		const Word16 w_0 = 2730; // (1.0f / 12.0f) in Q15
		move16();
		@@ -82,6 +84,7 @@ void sns_compute_scf_fx(

		assert( nBands == FDNS_NPTS );

		set64_fx( x_64, 0, FDNS_NPTS );
		set32_fx( x, 0, FDNS_NPTS );

		IF( bandLengths == NULL )
		@@ -93,19 +96,13 @@ void sns_compute_scf_fx(
		move16();
		FOR( i = 0; i < nBands; ++i )
		{
		x[i] = 0;
		move32();
		x_64[i] = 0;
		move64();
		FOR( n = 0; n < bw; ( ++n, ++k ) )
		{
		x[i] = L_add_sat( x[i], spectrum[k] );
		move32();
		x_64[i] = W_add( x_64[i], W_deposit32_l( spectrum[k] ) ); // Q_in
		move64();
		}
		exp = 15;
		move16();
		Word16 inv_bw = Invert16( bw, &exp );
		inv_bw = shl( inv_bw, exp );
		x[i] = Mpy_32_16_1( x[i], inv_bw );
		move32();
		}
		}
		ELSE
		@@ -115,46 +112,73 @@ void sns_compute_scf_fx(
		move32();
		FOR( i = 0; i < nBands; ++i )
		{
		x[i] = 0;
		move32();
		x_64[i] = 0;
		move64();
		FOR( n = 0; n < bandLengths[i]; ( ++n, ++k ) )
		{
		x[i] = L_add_sat( x[i], spectrum[k] );
		move32();
		x_64[i] = W_add( x_64[i], W_deposit32_l( spectrum[k] ) ); // Q_in
		move64();
		}
		}
		}

		/* Move accumulated values to 32-bit */
		q_shift = W_norm( x_64[0] );
		FOR( i = 1; i < nBands; ++i )
		{
		q_shift = s_min( q_shift, W_norm( x_64[i] ) );
		}
		FOR( i = 0; i < nBands; ++i )
		{
		x[i] = W_extract_l( W_shl( x_64[i], sub( q_shift, 32 ) ) ); // Q_in + (q_shift - 32)
		}
		exp = 15;
		move16();

		IF( bandLengths == NULL )
		{
		Word16 inv_bw;
		bw = (Word8) shr( L_frame, 6 );
		move16();
		inv_bw = div_l( ONE_IN_Q16, bw ); // Q15
		FOR( i = 0; i < nBands; ++i )
		{
		x[i] = Mpy_32_16_1( x[i], inv_bw ); // Q_in + (q_shift - 32)
		move32();
		}
		}
		ELSE
		{
		FOR( i = 0; i < nBands; ++i )
		{
		Word16 inv_bw = div_l( ONE_IN_Q16, bandLengths[i] ); // Q15
		x[i] = Mpy_32_16_1( x[i], inv_bw );
		x[i] = Mpy_32_16_1( x[i], inv_bw ); // Q_in + (q_shift - 32)
		move32();
		}
		}

		/* Smoothing */
		xs[0] = L_add( Mpy_32_16_1( x[0], 24576 /* 0.75 in Q15 / ), Mpy_32_16_1( x[1], 8192 / 0.25 in Q15 */ ) );
		xs[0] = L_add( Mpy_32_16_1( x[0], 24576 /* 0.75 in Q15 / ), Mpy_32_16_1( x[1], 8192 / 0.25 in Q15 */ ) ); // Q_in + (q_shift - 32)
		move32();

		FOR( i = 1; i < FDNS_NPTS - 1; i++ )
		{
		xs[i] = L_add( L_add( Mpy_32_16_1( x[i], 16384 /* 0.5 in Q15 / ), Mpy_32_16_1( x[i - 1], 8192 / 0.25 in Q15 / ) ), Mpy_32_16_1( x[i + 1], 8192 / 0.25 in Q15 */ ) );
		xs[i] = L_add( L_add( Mpy_32_16_1( x[i], 16384 /* 0.5 in Q15 / ), Mpy_32_16_1( x[i - 1], 8192 / 0.25 in Q15 / ) ), Mpy_32_16_1( x[i + 1], 8192 / 0.25 in Q15 */ ) ); // Q_in + (q_shift - 32)
		move32();
		}

		xs[FDNS_NPTS - 1] = L_add( Mpy_32_16_1( x[FDNS_NPTS - 1], 24576 /* 0.75 in Q15 / ), Mpy_32_16_1( x[FDNS_NPTS - 2], 8192 / 0.25 in Q15 */ ) );
		xs[FDNS_NPTS - 1] = L_add( Mpy_32_16_1( x[FDNS_NPTS - 1], 24576 /* 0.75 in Q15 / ), Mpy_32_16_1( x[FDNS_NPTS - 2], 8192 / 0.25 in Q15 */ ) ); // Q_in + (q_shift - 32)
		move32();

		/* Pre-emphasis */
		SWITCH( L_frame )
		{
		case L_FRAME16k:
		pow_tilt = pow_tilt_16k; // Q7
		pow_tilt = pow_tilt_16k; // Q23
		BREAK;
		case L_FRAME25_6k:
		pow_tilt = pow_tilt_25_6k; // Q7
		pow_tilt = pow_tilt_25_6k; // Q23
		BREAK;
		case L_FRAME32k:
		pow_tilt = pow_tilt_32k; // Q7
		pow_tilt = pow_tilt_32k; // Q23
		BREAK;
		default:
		pow_tilt = NULL;
		@@ -163,9 +187,7 @@ void sns_compute_scf_fx(

		FOR( i = 0; i < FDNS_NPTS; i++ )
		{
		xs[i] = Mpy_32_16_1( xs[i], pow_tilt[i] );
		move32();
		xs[i] = L_shl( xs[i], Q4 ); // xs => Q8
		xs[i] = Mpy_32_32( xs[i], pow_tilt[i] ); // Q_in + (q_shift - 32)
		move32();
		}

		@@ -174,20 +196,18 @@ void sns_compute_scf_fx(
		move64();
		FOR( Word16 ind = 0; ind < FDNS_NPTS; ind++ )
		{
		sum = W_add( sum, (Word64) xs[ind] );
		sum = W_add( sum, (Word64) xs[ind] ); // Q_in + (q_shift - 32)
		}
		mean = (Word32) W_shr( sum, 6 );
		move32();

		nf = Mpy_32_16_1( mean, 3 ); // 3 => powf( 10.0f, -4.0f ) in Q15
		nf = L_max( nf, 0 ); // 0 => powf( 2.0f, -32.0f ) in Q15
		mean = W_extract_l( W_shr( sum, 6 ) ); // Q_in + (q_shift - 32)

		nf = Mpy_32_32( mean, 214748 /* powf( 10.0f, -4.0f ) in Q31 */ ); // Q_in + (q_shift - 32)
		nf = L_max( nf, 0 /* powf( 2.0f, -32.0f ) in Q31 */ ); // Q_in + (q_shift - 32)

		FOR( i = 0; i < FDNS_NPTS; i++ )
		{
		if ( LT_32( xs[i], nf ) )
		{
		xs[i] = nf;
		xs[i] = nf; // Q_in + (q_shift - 32)
		move32();
		}
		}
		@@ -205,13 +225,13 @@ void sns_compute_scf_fx(

		/* Downsampling */
		L_tmp = L_deposit_l( 0 );
		L_tmp = Madd_32_16( L_tmp, xl[0], w_0 );
		L_tmp = Madd_32_16( L_tmp, xl[0], w_1 );
		L_tmp = Madd_32_16( L_tmp, xl[1], w_2 );
		L_tmp = Madd_32_16( L_tmp, xl[2], w_3 );
		L_tmp = Madd_32_16( L_tmp, xl[3], w_4 );
		L_tmp = Madd_32_16( L_tmp, xl[4], w_5 );
		xl4[0] = L_tmp;
		L_tmp = Madd_32_16( L_tmp, xl[0], w_0 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[0], w_1 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[1], w_2 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[2], w_3 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[3], w_4 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[4], w_5 ); // Q16
		xl4[0] = L_tmp; // Q16
		move32();

		FOR( n = 1; n < SNS_NPTS - 1; n++ )
		@@ -219,37 +239,38 @@ void sns_compute_scf_fx(
		Word16 n4 = shl( n, 2 );

		L_tmp = L_deposit_l( 0 );
		L_tmp = Madd_32_16( L_tmp, xl[n4 - 1], w_0 );
		L_tmp = Madd_32_16( L_tmp, xl[n4], w_1 );
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 1], w_2 );
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 2], w_3 );
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 3], w_4 );
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 4], w_5 );
		xl4[n] = L_tmp;
		L_tmp = Madd_32_16( L_tmp, xl[n4 - 1], w_0 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[n4], w_1 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 1], w_2 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 2], w_3 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 3], w_4 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[n4 + 4], w_5 ); // Q16
		xl4[n] = L_tmp; // Q16
		move32();
		}

		L_tmp = L_deposit_l( 0 );
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 5], w_0 );
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 4], w_1 );
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 3], w_2 );
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 2], w_3 );
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 1], w_4 );
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 1], w_5 );
		xl4[SNS_NPTS - 1] = L_tmp;
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 5], w_0 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 4], w_1 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 3], w_2 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 2], w_3 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 1], w_4 ); // Q16
		L_tmp = Madd_32_16( L_tmp, xl[FDNS_NPTS - 1], w_5 ); // Q16
		xl4[SNS_NPTS - 1] = L_tmp; // Q16
		move32();

		/* Remove mean and scaling */
		sum = 0;
		move64();
		FOR( Word16 ind = 0; ind < SNS_NPTS; ind++ )
		{
		sum = W_add( sum, (Word64) xl4[ind] );
		sum = W_add( sum, (Word64) xl4[ind] ); // Q16
		}
		mean = (Word32) W_shr( sum, 4 );
		mean = W_extract_l( W_shr( sum, 4 ) ); // Q16

		FOR( i = 0; i < SNS_NPTS; i++ )
		{
		scf[i] = Mpy_32_16_1( L_sub( xl4[i], mean ), 27853 /* 0.85 in in Q15 */ );
		scf[i] = Mpy_32_16_1( L_sub( xl4[i], mean ), 27853 /* 0.85 in in Q15 */ ); // Q16
		move32();
		}

lib_com/parameter_bitmaping.c

+58 −0

Original line number	Diff line number	Diff line
		@@ -187,6 +187,64 @@ void GetParameters(
		return;
		}

		void GetParameters_fx(
		ParamsBitMap const *paramsBitMap,
		const Word16 nArrayLength, // Q0
		void const *pParameter, // Q0
		Word16 **pStream, // Q0
		Word16 *pnSize, // Q0
		Word16 *pnBits ) // Q0
		{
		Word16 index;
		Word16 iParam, nParams;
		Word16 value;
		void const *pSubStruct;

		assert( ( paramsBitMap != NULL ) && ( nArrayLength > 0 ) && ( pParameter != NULL ) && ( pStream != NULL ) && ( pnSize != NULL ) && ( pnBits != NULL ) );

		nParams = paramsBitMap->nParams;
		move16();
		FOR( index = 0; index < nArrayLength; index++ )
		{
		FOR( iParam = 0; iParam < nParams; iParam++ )
		{
		ParamBitMap const *const param = &paramsBitMap->params[iParam];

		#define WMC_TOOL_SKIP
		pSubStruct = param->GetParamValue( pParameter, index, &value );
		#undef WMC_TOOL_SKIP
		/* If a function for encoding/decoding value is defined than it should take care of 0 */
		IF( param->fZeroAllowed \|\| ( param->EncodeValue != NULL ) )
		{
		( pStream )++ = value;
		move16();
		}
		ELSE
		{
		( pStream )++ = sub( value, 1 );
		move16();
		}
		++*pnSize;
		#define WMC_TOOL_SKIP
		IF( ( param->nBits != 0 ) )
		{
		pnBits = add( pnBits, param->nBits );
		}
		ELSE
		{
		pnBits = add( pnBits, param->GetNumberOfBits( value, index ) );
		}
		move16();
		#undef WMC_TOOL_SKIP
		IF( ( param->pSubParamBitMap != NULL ) && ( value > 0 ) )
		{
		GetParameters( param->pSubParamBitMap, value, ( pSubStruct != NULL ) ? pSubStruct : pParameter, pStream, pnSize, pnBits );
		}
		}
		}

		return;
		}

		void SetParameters(
		ParamsBitMap const *paramsBitMap,