Update old issue_69_DISABLE_ADAP_RES_COD_TMP branch to the latest main branch (3968cd2f) · Commits · IVAS Codec Public Collaboration / IVAS Codec

lib_com/options.h

+2 −1

Original line number	Diff line number	Diff line
		@@ -143,7 +143,8 @@
		#define BITSTREAM_INDICES_MEMORY /* Don't count memory for bitstream Indice at the encoder - it is a temporary solution for development only */
		#endif

		#define DISABLE_ADAP_RES_COD_TMP /* temporary fix for IVAS-403, disables adaptive residual coding */
		/#define DISABLE_ADAP_RES_COD_TMP/ /* temporary fix for IVAS-403, disables adaptive residual coding */
		#define ADAP_OPT /* Issue 69: optimized the adap algorithm */
		/#define FIX_I4_OL_PITCH/ /* fix open-loop pitch used for EVS core switching */

		#define USE_HRIR_128_METH5_IRC_53_Q10_SYML_ITRP1_48000 /* Dolby (Orange, FhG) : Contribution 36 - SBA HRIR update */

lib_enc/ivas_stat_enc.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -256,6 +256,9 @@ typedef struct stereo_dft_enc_data_struct
		float res_cod_NRG_S[STEREO_DFT_BAND_MAX];
		float res_cod_SNR_M[STEREO_DFT_BAND_MAX];
		float old_snr;
		#ifdef ADAP_OPT
		int16_t first_frm_flag; /* ADAP first frame flag */
		#endif

		/* flags and data for adaptive wideband residual coding */
		float res_dmx_ratio_lt; /* long term energy ratio between RES and DMX */

lib_enc/ivas_stereo_dft_enc.c

+43 −0

Original line number	Diff line number	Diff line
		@@ -508,6 +508,10 @@ void stereo_dft_enc_reset(
		hStereoDft->hItd->prev_itd1 = 0;
		hStereoDft->hItd->prev_itd2 = 0;

		#ifdef ADAP_OPT
		hStereoDft->first_frm_flag = 1;
		#endif

		#ifdef DEBUG_MODE_DFT
		hStereoDft->verbose = 1;
		#endif
		@@ -1648,7 +1652,11 @@ void stereo_dft_enc_process(
		{
		stereo_dft_enc_get_res_cod_mode_flag( hStereoDft, res_nrg_all_curr, dmx_nrg_all_curr, &res_dmx_ratio, &frame_nrg_ratio );

		#ifdef ADAP_OPT
		if ( hStereoDft->res_cod_sw_flag )
		#else
		if ( hStereoDft->res_cod_mode[k_offset] == STEREO_DFT_RES_COD_OFF \|\| hStereoDft->res_cod_sw_flag )
		#endif
		{
		int16_t res_cod_band_max;

		@@ -1749,6 +1757,16 @@ static void stereo_dft_enc_get_res_cod_mode_flag(
		}

		/* Calculate long term energy ratio between residual signal and downmix signal */
		#ifdef ADAP_OPT
		if ( fast_update_flag )
		{
		hStereoDft->res_dmx_ratio_lt = res_dmx_ratio 0.2f + hStereoDft->res_dmx_ratio_lt * 0.8f;
		}
		else
		{
		hStereoDft->res_dmx_ratio_lt = res_dmx_ratio 0.05f + hStereoDft->res_dmx_ratio_lt * 0.95f;
		}
		#else
		if ( fast_update_flag )
		{
		hStereoDft->res_dmx_ratio_lt = res_dmx_ratio 0.5f + hStereoDft->res_dmx_ratio_lt * 0.5f;
		@@ -1757,9 +1775,14 @@ static void stereo_dft_enc_get_res_cod_mode_flag(
		{
		hStereoDft->res_dmx_ratio_lt = res_dmx_ratio 0.1f + hStereoDft->res_dmx_ratio_lt * 0.9f;
		}
		#endif

		/Get the residual signal coding initial flag /
		#ifdef ADAP_OPT
		if ( hStereoDft->res_dmx_ratio_lt > 0.01f )
		#else
		if ( hStereoDft->res_dmx_ratio_lt > 0.075f )
		#endif
		{
		res_cod_mode_flag = 1;
		}
		@@ -1769,12 +1792,28 @@ static void stereo_dft_enc_get_res_cod_mode_flag(
		}

		/* Get the residual signal coding flag */
		#ifdef ADAP_OPT
		if ( hStereoDft->first_frm_flag )
		{
		prev_res_cod_mode_flag = res_cod_mode_flag;
		hStereoDft->first_frm_flag = 0;
		}
		else
		{
		prev_res_cod_mode_flag = hStereoDft->res_cod_mode[STEREO_DFT_OFFSET - 1];
		}
		#else
		prev_res_cod_mode_flag = hStereoDft->res_cod_mode[STEREO_DFT_OFFSET - 1];
		#endif
		if ( res_cod_mode_flag != prev_res_cod_mode_flag )
		{
		if ( prev_res_cod_mode_flag == 1 )
		{
		#ifdef ADAP_OPT
		if ( hStereoDft->hangover_cnt0 < 5 && hStereoDft->last_res_cod_mode_modify_flag == 0 && fast_update_flag == 0 )
		#else
		if ( hStereoDft->hangover_cnt0 < 3 && hStereoDft->last_res_cod_mode_modify_flag == 0 && fast_update_flag == 0 )
		#endif
		{
		res_cod_mode_flag = prev_res_cod_mode_flag;
		hStereoDft->hangover_cnt0++;
		@@ -1794,7 +1833,11 @@ static void stereo_dft_enc_get_res_cod_mode_flag(
		}
		else
		{
		#ifdef ADAP_OPT
		if ( hStereoDft->hangover_cnt1 < 5 )
		#else
		if ( hStereoDft->hangover_cnt1 < 3 )
		#endif
		{
		res_cod_mode_flag = prev_res_cod_mode_flag;
		hStereoDft->hangover_cnt1++;