CPE encoder subfunctions conversion and integration (8f98e283) · Commits · SA4 / Audio / IVAS BASOP

lib_com/ivas_cnst.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -824,7 +824,9 @@ enum fea_names
		#define STEREO_BITS_TCA_CORRSTATS 5 /* target corrStats */
		#define STEREO_BITS_TCA_GD 5 /* target gain */
		#define STEREO_TCA_GDMIN -1.0f
		#define STEREO_TCA_GDMIN_FX -32768
		#define STEREO_TCA_GDSTEP 0.05f
		#define STEREO_TCA_GDSTEP_FX 819
		#define STEREO_BITS_TCA ( STEREO_BITS_TCA_CHAN + STEREO_BITS_TCA_CORRSTATS + STEREO_BITS_TCA_GD )

		#define STEREO_ICBWE_MSFLAG_BITS 1 /* BWE Multi Source flag */

lib_com/ivas_prot.h

+73 −21

Original line number	Diff line number	Diff line
		@@ -317,13 +317,25 @@ ivas_error pre_proc_ivas(
		int16_t Voicing_flag, / o : voicing flag for HQ FEC */
		const float old_wsp[], /* i : weighted input signal buffer */
		const int16_t loc_harm, /* i : harmonicity flag */
		#ifndef IVAS_FLOAT_FIXED
		const float cor_map_sum, /* i : speech/music clasif. parameter */
		#endif
		const int16_t vad_flag_dtx, /* i : HE-SAD flag with additional DTX HO */
		#ifndef IVAS_FLOAT_FIXED
		/const/ float enerBuffer[CLDFB_NO_CHANNELS_MAX], /* i : energy buffer */
		/const/ float fft_buff[2 * L_FFT], /* i : FFT buffer */
		#endif
		const int16_t MCT_flag, /* i : hMCT handle allocated (1) or not (0) */
		const int16_t vad_hover_flag, /* i : VAD hangover flag */
		const int16_t flag_16k_smc /* i : flag to indicate if the OL SMC is run at 16 kHz */
		#ifdef IVAS_FLOAT_FIXED
		,
		Word32 enerBuffer_fx[CLDFB_NO_CHANNELS_MAX],
		Word16 e_enerBuffer,
		Word16 fft_buff_fx[2 * L_FFT],
		Word32 cor_map_sum_fx,
		Word16 exp_cor_map_sum
		#endif
		);

		ivas_error ivas_compute_core_buffers(
		@@ -2680,17 +2692,33 @@ void stereo_td_init_enc_fx(
		STEREO_TD_ENC_DATA_HANDLE hStereoTD, /* i/o: TD stereo encoder handle */
		const Word16 last_element_mode /* i : last element mode */
		);

		#ifndef IVAS_FLOAT_FIXED
		ivas_error stereo_set_tdm(
		CPE_ENC_HANDLE hCPE, /* i : CPE encoder structure */
		const int16_t input_frame /* i : input frame length per channel */
		);

		#else
		ivas_error stereo_set_tdm_fx(
		CPE_ENC_HANDLE hCPE, /* i : CPE encoder structure */
		const Word16 input_frame, /* i : input frame length per channel */
		Word16 input_q
		);
		#endif
		#ifndef IVAS_FLOAT_FIXED
		void stereo_tdm_prep_dwnmx (
		CPE_ENC_HANDLE hCPE, /* i : CPE encoder structure */
		const float input1, / i : right channel input */
		const int16_t input_frame /* i : frame lenght */
		);
		#else
		void stereo_tdm_prep_dwnmx_fx(
		CPE_ENC_HANDLE hCPE, /* i : CPE encoder structure */
		const Word32 input1, / i : right channel input */
		const Word16 input_frame, /* i : frame lenght */
		const Word16 input_q /* i : frame lenght */
		);
		#endif

		#ifndef IVAS_FLOAT_FIXED
		int16_t stereo_tdm_ener_analysis(
		const int16_t ivas_format, /* i : IVAS format */
		@@ -3638,6 +3666,11 @@ ivas_error front_vad_create_fx(
		void front_vad_destroy(
		FRONT_VAD_ENC_HANDLE hFrontVad / i/o: front-VAD handle */
		);
		#ifdef IVAS_FLOAT_FIXED
		void front_vad_destroy_fx(
		FRONT_VAD_ENC_HANDLE hFrontVad / i/o: front-VAD handle */
		);
		#endif

		ivas_error front_vad(
		CPE_ENC_HANDLE hCPE, /* i/o: CPE encoder structure, nullable */
		@@ -3662,19 +3695,21 @@ ivas_error front_vad_fx(
		Encoder_State * st, /* i/o: encoder state structure */
		const ENCODER_CONFIG_HANDLE hEncoderConfig, /* i : configuration structure */
		FRONT_VAD_ENC_HANDLE hFrontVads, / i/o: FrontVad 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 */
		const Word16 MCT_flag, /* i : hMCT handle allocated (1) or not (0) */
		const Word16 input_frame, /* i : frame length */
		Word16 vad_flag_dtx[], /* o : HE-SAD flag with additional DTX HO */
		Word32 fr_bands_fx[][2 * NB_BANDS], /* o : energy in frequency bands Q_buffer[n] + QSCALE + 2 */
		Word16 Etot_LR_fx[], /* o : total energy Left & Right channel Q8 */
		Word32 lf_E_fx[][2 * VOIC_BINS], /* i : per bin spectrum energy in lf, LR channels Q_buffer[n] + QSCALE */
		Word16 localVAD_HE_SAD[], /* o : HE-SAD flag without hangover, LR channels */
		Word16 vad_hover_flag[], /* o : VAD hangover flag */
		Word32 band_energies_LR_fx[2 * NB_BANDS], /* o : energy in critical bands without minimum noise floor E_MIN Q_buffer[1] + QSCALE + 2 - band_ener_guardbits*/
		Word32 PS_out_fx, / o : energy spectrum Q_buffer + QSCALE */
		Word16 Bin_E_out_fx, / o : log-energy spectrum of the current frame Q7 */
		Word16 Q_inp,
		Word16 Q_add );
		Word16 *Q_buffer,
		Word16 Q_add,
		Word16 *front_create_flag );
		#endif
		ivas_error front_vad_spar(
		SPAR_ENC_HANDLE hSpar, /* i/o: SPAR encoder structure */
		@@ -4004,7 +4039,16 @@ Word32 check_bounds_l(
		const Word32 low, /* i : Low limit */
		const Word32 high /* i : High limit */
		);
		#ifdef IVAS_FLOAT_FIXED
		ivas_error stereo_memory_enc_fx(
		CPE_ENC_HANDLE hCPE, /* i : CPE encoder structure */
		const int32_t input_Fs, /* i : input sampling rate */
		const int16_t max_bwidth, /* i : maximum audio bandwidth */
		const IVAS_FORMAT ivas_format, /* i : IVAS format */
		const int16_t nchan_transport /* i : number transport chans */

		);
		#else
		ivas_error stereo_memory_enc(
		CPE_ENC_HANDLE hCPE, /* i : CPE encoder structure */
		const int32_t input_Fs, /* i : input sampling rate */
		@@ -4014,6 +4058,7 @@ ivas_error stereo_memory_enc(
		const int16_t nchan_transport /* i : number transport chans */

		);
		#endif

		ivas_error stereo_memory_dec(
		const int32_t ivas_total_brate, /* i : IVAS total bitrate */
		@@ -4024,13 +4069,20 @@ ivas_error stereo_memory_dec(
		const MC_MODE mc_mode, /* i : MC mode */
		const int16_t nchan_transport /* i : number of transport channels */
		);

		#ifdef IVAS_FLOAT_FIXED
		void stereo_switching_enc_fx(
		CPE_ENC_HANDLE hCPE, /* i : CPE encoder structure */
		Word16 old_input_signal_pri[], /* i : old input signal of primary channel */
		const Word16 input_frame, /* i : input frame length */
		const Word16 q_inp
		);
		#else
		void stereo_switching_enc(
		CPE_ENC_HANDLE hCPE, /* i : CPE structure */
		float old_input_signal_pri[], /* i : old input signal of primary channel */
		const int16_t input_frame /* i : input frame length */
		);

		#endif
		void stereo_switching_dec(
		CPE_DEC_HANDLE hCPE, /* i/o: CPE decoder structure */
		const int32_t ivas_total_brate /* i : IVAS total bitrate */

lib_com/ivas_prot_fx.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -3015,6 +3015,11 @@ Word16 transient_analysis_ivas_fx(
		const Word16 multi_harm_limit, /* i : multi harmonic threshold Q_multi_harm_limit = Qx */
		Word16 Q_multi_harm_limit );

		void set_transient_stereo_fx(
		CPE_ENC_HANDLE hCPE, /* i : CPE structure */
		Word16 currFlatness[] /* i/o: current flatness Q7*/
		);

		void ivas_smc_mode_selection_fx(
		Encoder_State st, / i/o: encoder state structure */
		const Word32 element_brate, /* i : element bitrate */

lib_enc/analy_sp_fx.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -272,7 +272,7 @@ static void find_enr_dft_fx(
		/* for low frequency bins, save per bin energy for the use in find_tilt() */
		freq = bin_freq;
		move32();
		for ( i = 0; i < NB_BANDS - 1; i++ ) /* up to maximum allowed voiced critical band */
		FOR( i = 0; i < NB_BANDS - 1; i++ ) /* up to maximum allowed voiced critical band */
		{
		band_fx[i] = 0;
		move32();
		@@ -317,7 +317,7 @@ static void find_enr_dft_fx(
		move32();
		band_ener_fx[i] = band_fx[i]; /* per band energy without E_MIN */
		move32();
		if ( band_fx[i] < L_shl( E_MIN_Q11_FX, sub( Qout, Q11 ) ) )
		if ( LT_32( band_fx[i], L_shl( E_MIN_Q11_FX, sub( Qout, Q11 ) ) ) )
		{
		band_fx[i] = L_shl( E_MIN_Q11_FX, sub( Qout, Q11 ) );
		move32();
		@@ -381,7 +381,7 @@ static void find_enr_dft_fx(
		/* put bin energies from BinE into Bin_E[L_FFT/2-1] (interpolate 40 Hz bin values to fit into 50 Hz bins) */
		/* Last value of Bin_E is handled outside this function*/
		assert( bin_cnt == ( STEREO_DFT_N_12k8_ENC / 2 - 1 ) );
		Scale_sig32( BinE_fx, 256, sub( Qout, ( 2 * Q_inp_dmx - 32 ) ) );
		Scale_sig32( BinE_fx, 256, sub( Qout, sub( shl( Q_inp_dmx, 1 ), 32 ) ) );
		BinE_fx[STEREO_DFT_N_12k8_ENC / 2 - 1] = BinE_fx[STEREO_DFT_N_12k8_ENC / 2 - 2];
		move32();
		L_lerp_fx( BinE_fx, Bin_E_fx, L_FFT / 2, STEREO_DFT_N_12k8_ENC / 2, &Qout );

lib_enc/core_enc_init.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -710,7 +710,8 @@ static void init_tcx_ivas_fx(
		hTcxEnc->kernel_switch_corr_past = 0;
		hTcxEnc->kernel_symmetry_past = 0; /* MDCT_IV & 1 */
		hTcxEnc->enc_ste_pre_corr_past = 0;
		hTcxEnc->tfm_mem_fx = 12288 /0.75 in Q14/;
		// hTcxEnc->tfm_mem_fx = 12288 /0.75 in Q14/;
		hTcxEnc->tfm_mem_fx = 1610612736;
		#ifdef IVAS_FLOAT_FIXED_CONVERSIONS
		hTcxEnc->tfm_mem = 0.75f;
		#endif

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