Merge branch 'dlb_sba_vlbr_20ms_optimization' into 'main' (6cd89937) · Commits · IVAS Codec Public Collaboration / IVAS Codec

lib_com/ivas_prot.h

+24 −0

Original line number	Diff line number	Diff line
		@@ -4252,6 +4252,10 @@ void ivas_sba_mix_matrix_determiner(
		const int16_t bfi, /* i : BFI flag */
		const int16_t nchan_remapped, /* i : num channels after remapping of TCs */
		const int16_t output_frame /* i : output frame length */
		#ifdef VLBR_20MS_MD
		,
		const int16_t num_md_sub_frames /* i : number of subframes in mixing matrix */
		#endif
		);

		/* AGC */
		@@ -4554,7 +4558,23 @@ void ivas_get_spar_md_from_dirac(
		int16_t ivas_get_spar_dec_md_num_subframes(
		const int16_t sba_order, /* i : Ambisonic (SBA) order */
		const int32_t ivas_total_brate /* i : IVAS total bitrate */
		#ifdef VLBR_20MS_MD
		,
		const int32_t ivas_last_active_brate /* i : IVAS last active bitrate */
		#endif
		);
		#ifdef VLBR_20MS_MD

		ivas_error ivas_spar_md_dec_matrix_open(
		ivas_spar_md_dec_state_t hMdDec, / i/o: SPAR MD decoder handle */
		const int16_t num_channels, /* i : number of internal channels */
		const int16_t num_md_sub_frames );

		void ivas_spar_md_dec_matrix_close(
		ivas_spar_md_dec_state_t hMdDecoder, / i/o: SPAR MD decoder handle */
		const int16_t num_channels ); /* i : number of internal channels */

		#endif

		ivas_error ivas_spar_md_dec_open(
		ivas_spar_md_dec_state_t *hMdDec_out, / i/o: SPAR MD decoder handle */
		@@ -4562,6 +4582,10 @@ ivas_error ivas_spar_md_dec_open(
		const int16_t num_channels, /* i : number of internal channels */
		const int16_t sba_order, /* i : SBA order */
		const int16_t sid_format /* i : SID format */
		#ifdef VLBR_20MS_MD
		,
		const int32_t last_active_ivas_total_brate /* i : IVAS last active bitrate */
		#endif
		);

		void ivas_spar_md_dec_close(

lib_com/options.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -149,6 +149,8 @@
		/* only BE switches wrt operation points tested in selection */

		/#define FIX_I4_OL_PITCH/ /* fix open-loop pitch used for EVS core switching */

		#define VLBR_20MS_MD /* Dlb: SBA VLBR 20ms Optimization*/
		#define SBA_MODE_CLEANUP_2 /* Dlb : changes part of fix issue #523 for unused signaling bit in SBA SID*/
		#define FIX_137_SID_MD_BITS /* Dlb: Fix issue #137 , SID bitrate mismatch correction */
		#define FIX_563_PARAMMC_LIMITER /* FhG: issue 563: fix ILD limiter when coming from silence w/o transient set */

lib_dec/ivas_dec.c

+15 −1

Original line number	Diff line number	Diff line
		@@ -71,6 +71,9 @@ ivas_error ivas_dec(
		float pan_left, pan_right;
		ivas_error error;
		float *p_output[MAX_OUTPUT_CHANNELS];
		#ifdef VLBR_20MS_MD
		int16_t num_md_sub_frames;
		#endif

		error = IVAS_ERR_OK;

		@@ -388,7 +391,12 @@ ivas_error ivas_dec(
		}

		ivas_spar_dec_gen_umx_mat( st_ivas->hSpar->hMdDec, st_ivas->nchan_transport, IVAS_MAX_NUM_BANDS, st_ivas->bfi,
		ivas_get_spar_dec_md_num_subframes( st_ivas->sba_order, st_ivas->hDecoderConfig->ivas_total_brate ) );
		ivas_get_spar_dec_md_num_subframes( st_ivas->sba_order, st_ivas->hDecoderConfig->ivas_total_brate
		#ifdef VLBR_20MS_MD
		,
		st_ivas->last_active_ivas_total_brate
		#endif
		) );
		}

		ivas_sba_dirac_stereo_dec( st_ivas, output, output_frame, st_ivas->ivas_format == MC_FORMAT );
		@@ -411,7 +419,13 @@ ivas_error ivas_dec(

		if ( st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC \|\| st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC_ROOM )
		{
		#ifdef VLBR_20MS_MD
		num_md_sub_frames = ivas_get_spar_dec_md_num_subframes( st_ivas->sba_analysis_order, st_ivas->hDecoderConfig->ivas_total_brate,
		st_ivas->last_active_ivas_total_brate );
		ivas_sba_mix_matrix_determiner( st_ivas->hSpar, output, st_ivas->bfi, nchan_remapped, output_frame, num_md_sub_frames );
		#else
		ivas_sba_mix_matrix_determiner( st_ivas->hSpar, output, st_ivas->bfi, nchan_remapped, output_frame );
		#endif
		}
		else if ( st_ivas->renderer_type != RENDERER_DISABLE )
		{

lib_dec/ivas_jbm_dec.c

+19 −1

Original line number	Diff line number	Diff line
		@@ -82,6 +82,9 @@ ivas_error ivas_jbm_dec_tc(
		AUDIO_CONFIG output_config;
		ivas_error error;
		float *p_output[MAX_TRANSPORT_CHANNELS];
		#ifdef VLBR_20MS_MD
		int16_t num_md_sub_frames;
		#endif

		error = IVAS_ERR_OK;

		@@ -259,7 +262,12 @@ ivas_error ivas_jbm_dec_tc(
		}

		ivas_spar_dec_gen_umx_mat( st_ivas->hSpar->hMdDec, st_ivas->nchan_transport, IVAS_MAX_NUM_BANDS, st_ivas->bfi,
		ivas_get_spar_dec_md_num_subframes( st_ivas->sba_order, st_ivas->hDecoderConfig->ivas_total_brate ) );
		ivas_get_spar_dec_md_num_subframes( st_ivas->sba_order, st_ivas->hDecoderConfig->ivas_total_brate
		#ifdef VLBR_20MS_MD
		,
		st_ivas->last_active_ivas_total_brate
		#endif
		) );
		}

		ivas_sba_dirac_stereo_dec( st_ivas, output, output_frame, st_ivas->ivas_format == MC_FORMAT );
		@@ -282,7 +290,17 @@ ivas_error ivas_jbm_dec_tc(

		if ( st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC \|\| st_ivas->renderer_type == RENDERER_BINAURAL_PARAMETRIC_ROOM )
		{
		#ifdef VLBR_20MS_MD
		num_md_sub_frames = ivas_get_spar_dec_md_num_subframes( st_ivas->sba_analysis_order, st_ivas->hDecoderConfig->ivas_total_brate
		#ifdef VLBR_20MS_MD
		,
		st_ivas->last_active_ivas_total_brate
		#endif
		);
		ivas_sba_mix_matrix_determiner( st_ivas->hSpar, output, st_ivas->bfi, nchan_remapped, output_frame, num_md_sub_frames );
		#else
		ivas_sba_mix_matrix_determiner( st_ivas->hSpar, output, st_ivas->bfi, nchan_remapped, output_frame );
		#endif
		}
		else
		{

lib_dec/ivas_masa_dec.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -1177,7 +1177,20 @@ void ivas_spar_param_to_masa_param_mapping(
		}
		else
		{

		#ifdef VLBR_20MS_MD
		mixer_mat_index = ( ivas_get_spar_dec_md_num_subframes( st_ivas->sba_analysis_order, st_ivas->hDecoderConfig->ivas_total_brate
		#ifdef VLBR_20MS_MD
		,
		st_ivas->last_active_ivas_total_brate
		#endif
		) == 1 )
		? 0
		: ( sf - SPAR_META_DELAY_SUBFRAMES );
		#else

		mixer_mat_index = sf - SPAR_META_DELAY_SUBFRAMES;
		#endif
		for ( band = 0; band < SPAR_DIRAC_SPLIT_START_BAND; band++ )
		{
		for ( i = 0; i < FOA_CHANNELS; i++ )