Merge branch 'perform_noise_estimation_fxd' into 'main' (2faa7594) · Commits · SA4 / Audio / IVAS BASOP

lib_com/fd_cng_com_fx.c

+677 −1

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lib_com/prot_fx1.h

+27 −0

Original line number	Diff line number	Diff line
		@@ -397,6 +397,24 @@ void v_multc_att32(
		Word32 y[], /* o : Output vector that contains attx /
		const Word16 N /* i : Vector length */
		);
		void v_multc_att3232(
		const Word32 x[], /* i : Input vector Qx */
		const Word32 att, /* i : Constant Q32, <= MAX_32 */
		Word32 y[], /* o : Output vector that contains attx /
		const Word16 N /* i : Vector length */
		);
		void v_L_mult_1616(
		const Word16 x1[], /* i : Input vector 1 */
		const Word16 x2[], /* i : Input vector 2 */
		Word32 y[], /* o : Output vector that contains vector 1 .* vector 2 */
		const Word16 N /* i : Vector length */
		);
		void v_L_mult_3216(
		const Word32 x1[], /* i : Input vector 1 */
		const Word16 x2[], /* i : Input vector 2 */
		Word32 y[], /* o : Output vector that contains vector 1 .* vector 2 */
		const Word16 N /* i : Vector length */
		);
		void add_vec_fx(
		const Word16 x1[], /* i : Input vector 1 */
		const Word16 Qx1, /* i : SCaling of input 1 */
		@@ -513,6 +531,15 @@ void delay_signal32(
		const Word16 delay /* i : delay in samples */
		);

		Word16 lin_interp_fx(
		const Word16 x, /* i : the value to be mapped */
		const Word16 x1, /* i : source range interval: low end */
		const Word16 y1, /* i : source range interval: high end */
		const Word16 x2, /* i : target range interval: low */
		const Word16 y2, /* i : target range interval: high */
		const Word16 flag_sat /* i : flag to indicate whether to apply saturation */
		);

		Word16 ceil_log_2( UWord64 val );

		#ifdef IVAS_FLOAT_FIXED

lib_com/prot_fx2.h

+62 −0

Original line number	Diff line number	Diff line
		@@ -4601,6 +4601,35 @@ void minimum_statistics(Word16 len, /* i : Total number of
		Word16 msPeriodogBufPtr, / i/o: Counter */
		HANDLE_FD_CNG_COM st /* i/o: FD_CNG structure containing buffers and variables */
		);

		#ifdef IVAS_FLOAT_FIXED
		void minimum_statistics_fx(
		Word16 len, /* i : Total number of partitions (CLDFB or FFT) */
		Word16 lenFFT, /* i : Number of FFT partitions */
		Word16 psize, / i : Partition sizes, fractional */
		Word16 msPeriodog, / i : Periodogram (energies) */
		Word16 msNoiseFloor, / i/o: Noise floors (energies) */
		Word16 msNoiseEst, / i/o: Noise estimates (energies) */
		Word32 msAlpha, / i/o: Forgetting factors */
		Word16 msPsd, / i/o: Power Spectral Density (smoothed periodogram => energies) */
		Word16 msPsdFirstMoment, / i/o: PSD statistics of 1st order (energy means) */
		Word32 msPsdSecondMoment, / i/o: PSD statistics of 2nd order (energy variances) */
		Word32 msMinBuf, / i/o: Buffer of minima (energies) */
		Word32 msBminWin, / o : Bias correction factors */
		Word32 msBminSubWin, / o : Bias correction factors */
		Word32 msCurrentMin, / i/o: Local minima (energies) */
		Word32 msCurrentMinOut, / i/o: Local minima (energies) */
		Word32 msCurrentMinSubWindow, / i/o: Local minima (energies) */
		Word16 msLocalMinFlag, / i : Binary flag */
		Word16 msNewMinFlag, / i : Binary flag */
		Word16 msPeriodogBuf, / i/o: Buffer of periodograms (energies) */
		Word16 msPeriodogBufPtr, / i/o: Counter */
		HANDLE_FD_CNG_COM hFdCngCom, /* i/o: FD_CNG structure containing all buffers and variables */
		const Word16 enc_dec, /* i : encoder/decoder indicator */
		const Word16 element_mode /* i : IVAS element mode type */
		);
		#endif // IVAS_FLOAT_FIXED

		/* Apply bitrate-dependant scale */
		void apply_scale(
		Word32* scale, /* o : scalefactor */
		@@ -4642,6 +4671,14 @@ void AnalysisSTFT(
		HANDLE_FD_CNG_COM hFdCngCom /* i/o: FD_CNG structure containing all buffers and variables */
		);

		void AnalysisSTFT_fx(
		const Word16 *timeDomainInput,
		Word16 Q,
		Word32 fftBuffer, / o : FFT bins */
		Word16 fftBuffer_exp, / i : exponent of FFT bins */
		HANDLE_FD_CNG_COM hFdCngCom /* i/o: FD_CNG structure containing all buffers and variables */
		);

		/* STFT synthesis filterbank */
		void SynthesisSTFT(
		Word32* fftBuffer, /* i : pointer to FFT bins */
		@@ -6528,6 +6565,18 @@ void init_tcx_cfg_fx(
		Word16 is_music
		);

		Word16 ApplyFdCng_fx(
		Word16 timeDomainInput, / i : pointer to time domain input */
		Word16 Q,
		Word32 *powerSpectrum,
		Word32 *cldfbBufferReal, / i/o: real part of the CLDFB buffer */
		Word32 *cldfbBufferImag, / i/o: imaginary part of the CLDFB buffer */
		Word16 cldfbBufferScale, / o : pointer to the scalefactor for real and imaginary part of the CLDFB buffer */
		Decoder_State *st,
		const Word16 concealWholeFrame, /* i : binary flag indicating frame loss */
		Word16 is_music
		);

		/* Perform noise estimation */
		void perform_noise_estimation_dec(
		const Word16* timeDomainInput, /* i: pointer to time domain i */
		@@ -6546,6 +6595,19 @@ void init_tcx_cfg_fx(
		#endif
		);

		void perform_noise_estimation_dec_fx(
		const Word16 timeDomainInput, / i: pointer to time domain input */
		const Word16 Q,
		Word32 *power_spectrum,
		HANDLE_FD_CNG_DEC hFdCngDec, /* i/o: FD_CNG structure containing all buffers and variables */
		const Word16 element_mode, /* i : element mode */
		const Word16 bwidth, /* i : audio bandwidth */
		const Word16 L_frame, /* i : frame length at internal Fs */
		const Word16 last_L_frame, /* i : frame length of the last frame at internal Fs */
		const Word32 last_core_brate, /* i : previous frame core bitrate */
		const Word16 VAD /* i : VAD flag in the decoder */
		);

		/* Decode the CLDFB-CNG bitstream */
		void FdCng_decodeSID(HANDLE_FD_CNG_COM st, /* i/o: FD_CNG structure containing all buffers and variables */
		Decoder_State corest); / i/o: decoder state structure */

lib_com/rom_com.c

+152 −0

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lib_com/rom_com.h

+4 −0

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		@@ -1694,6 +1694,10 @@ extern const Word16 fftSineTab640_fx[321];

		extern const float olapWinAna512[512];
		extern const float olapWinAna640[640];
		#ifdef IVAS_FLOAT_FIXED
		extern const Word32 olapWinAna512_fx[512]; // Q30
		extern const Word32 olapWinAna640_fx[640]; // Q30
		#endif // IVAS_FLOAT_FIXED

		extern const float olapWinSyn256[256];
		extern const Word16 olapWinSyn256_fx[256];