Merge branch 'main' into 74-stereo-13-2kbps-command-line-limited-bw-differs-from-bitrate-limited-bw (845d289a) · Commits · IVAS Codec Public Collaboration / IVAS Codec

.gitignore

+1 −0

Original line number	Diff line number	Diff line
		@@ -44,6 +44,7 @@ scripts/c-code_instrument/
		scripts/ifdef_instrument.list
		scripts/ref/
		scripts/test/
		scripts/out/
		scripts/self_test_summary.txt

		# Python files that pop up when running scripts

lib_com/bitstream.c

+3 −11

Original line number	Diff line number	Diff line
		@@ -1978,21 +1978,13 @@ ivas_error preview_indices(

		/* Read SBA planar flag and SBA order */
		st_ivas->sba_planar = ( bit_stream[IVAS_FORMAT_SIGNALING_NBITS_SBA] == 1 );
		#ifndef SBA_ORDER_BITSTREAM
		st_ivas->sba_order = ( bit_stream[IVAS_FORMAT_SIGNALING_NBITS_SBA + 2] == 1 );
		st_ivas->sba_order += 2 * ( bit_stream[IVAS_FORMAT_SIGNALING_NBITS_SBA + 1] == 1 );
		#else
		st_ivas->hDecoderConfig->sba_order = ( bit_stream[IVAS_FORMAT_SIGNALING_NBITS_SBA + 2] == 1 );
		st_ivas->hDecoderConfig->sba_order += 2 * ( bit_stream[IVAS_FORMAT_SIGNALING_NBITS_SBA + 1] == 1 );
		st_ivas->sba_analysis_order = st_ivas->hDecoderConfig->sba_order;
		#endif

		#ifdef SBA_ORDER_BITSTREAM
		/Hard coding the the sba_oder as 1 as higher not supported below 256k bitrate/
		if ( total_brate < IVAS_256k )
		{
		st_ivas->sba_analysis_order = 1;
		}
		st_ivas->sba_analysis_order = ivas_sba_get_analysis_order( total_brate, st_ivas->sba_order );
		#endif

		#ifdef SBA_ORDER_BITSTREAM
		ivas_sba_config( total_brate, st_ivas->sba_analysis_order, -1, &( st_ivas->nchan_transport ), st_ivas->sba_planar, &( st_ivas->nSCE ), &( st_ivas->nCPE ), &( st_ivas->element_mode_init ), st_ivas->sba_mode );
		#else

lib_com/cnst.h

+1 −2

Original line number	Diff line number	Diff line
		@@ -67,8 +67,7 @@
		#define MAX16B_FLT 32767.0f
		#define MIN16B_FLT ( -32768.0f )
		#define PCM16_TO_FLT_FAC 32768.0f


		#define MDFT_NORM_SCALING ( 1.0f / PCM16_TO_FLT_FAC )
		#define MAX_FRAME_COUNTER 200
		#define MAX_BITS_PER_FRAME 10240 /* Bits per frame for max. bitrate 512kbps */

lib_com/ivas_cnst.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -831,6 +831,7 @@ typedef enum {

		#define SBA_PLANAR_BITS 1
		#define SBA_ORDER_BITS 2
		#define SBA_MIN_BRATE_HOA IVAS_256k
		#define SBA_NHARM_HOA3 16
		#define SBA_T_DESIGN_11_SIZE 70

lib_com/ivas_prot.h

+14 −12

Original line number	Diff line number	Diff line
		@@ -2155,9 +2155,7 @@ void stereo_mdct_core_dec(
		void splitAvailableBits(
		const int16_t total_bits, /* i : total available bits for TCX coding */
		const int16_t split_ratio, /* i : split ratio */
		#ifdef LBR_SBA_CORE_CODING_TUNING
		const int16_t isSBAStereoMode, /* i : signal core coding for sba */
		#endif
		int16_t bits_ch0, / o : bits for channel 0 */
		int16_t bits_ch1 / o : bits for channel 1 */
		);
		@@ -2175,9 +2173,7 @@ void parse_stereo_from_bitstream(
		STEREO_MDCT_DEC_DATA_HANDLE hStereoMdct, /* i/o: MDCT stereo decoder structure */
		Decoder_State *sts, / i/o: decoder state structure */
		const int16_t mct_on, /* i : flag mct block (1) or stereo (0) */
		#ifdef LBR_SBA_CORE_CODING_TUNING
		const int16_t isSBAStereoMode, /* i: flag core coding for sba */
		#endif
		Decoder_State st0, / i/o: decoder state structure for Bstr */
		int16_t ms_mask[NB_DIV][MAX_SFB] /* o : bandwise MS mask */
		);
		@@ -2513,10 +2509,8 @@ ivas_error stereo_memory_enc(
		const int16_t max_bwidth, /* i : maximum audio bandwidth */
		float tdm_last_ratio, / o : TD stereo last ratio */
		const IVAS_FORMAT ivas_format /* i : IVAS format */
		#ifdef LBR_SBA_CORE_CODING_TUNING
		,
		const int16_t nchan_transport /* i : number transport chans */
		#endif

		);

		@@ -3013,11 +3007,7 @@ void ivas_dirac_param_est_enc(
		----------------------------------------------------------------------------------/

		/! r: SBA format mode /
		#ifdef LBR_SBA_CORE_CODING_TUNING
		SBA_MODE ivas_sba_mode_select(
		#else
		int16_t ivas_sba_mode_select(
		#endif
		const int32_t ivas_total_brate /* i : IVAS total bitrate */
		);

		@@ -3043,15 +3033,25 @@ void ivas_init_dec_get_num_cldfb_instances(
		int16_t numCldfbSyntheses / o : number of CLDFB synthesis instances */
		);

		/! r: Ambisonic (SBA) order /
		int16_t ivas_sba_get_order(
		const int16_t nb_channels, /* i : Number of ambisonic channels */
		const int16_t sba_planar /* i : SBA planar flag */
		);

		#ifdef SBA_ORDER_BITSTREAM
		/! r: Ambisonic (SBA) order used for analysis and coding /
		int16_t ivas_sba_get_analysis_order(
		const int32_t ivas_total_brate, /* i : IVAS total bitrate */
		const int16_t sba_order /* i : Ambisonic (SBA) order */
		);
		#endif

		int16_t ivas_sba_get_order_transport(
		const int16_t nchan_transport /* i : Number of transport channels */
		);

		/!r: number of Ambisonic channels /
		int16_t ivas_sba_get_nchan(
		const int16_t sba_order, /* i : Ambisonic (SBA) order */
		const int16_t sba_planar /* i : SBA planar flag */
		@@ -3717,7 +3717,9 @@ void ivas_spar_config(
		void ivas_sba_upmixer_renderer(
		Decoder_Struct st_ivas, / i/o: IVAS decoder struct */
		float output[][L_FRAME48k], /* i/o: transport/output audio channels */
		#ifndef SPAR_SCALING_HARMONIZATION
		const int16_t nchan_remapped, /* i : num channels after remapping of TCs */
		#endif
		const int16_t output_frame /* i : output frame length */
		);

		@@ -3868,7 +3870,7 @@ ivas_error ivas_spar_md_enc_open(
		const ENCODER_CONFIG_HANDLE hEncoderConfig /* i : configuration structure */
		#ifdef SBA_ORDER_BITSTREAM
		,
		int16_t sba_order
		const int16_t sba_order /* i : Ambisonic (SBA) order */
		#endif
		);

		@@ -3884,7 +3886,7 @@ ivas_error ivas_spar_md_enc_process(
		const int16_t dtx_silence_mode
		#ifdef SBA_ORDER_BITSTREAM
		,
		int16_t sba_order
		const int16_t sba_order /* i : Ambisonic (SBA) order */
		#endif
		);