diff options
Diffstat (limited to 'thirdparty/opus/silk/float/main_FLP.h')
| -rw-r--r-- | thirdparty/opus/silk/float/main_FLP.h | 55 |
1 files changed, 41 insertions, 14 deletions
diff --git a/thirdparty/opus/silk/float/main_FLP.h b/thirdparty/opus/silk/float/main_FLP.h index 5dc0ccf4a4..e5a75972e5 100644 --- a/thirdparty/opus/silk/float/main_FLP.h +++ b/thirdparty/opus/silk/float/main_FLP.h @@ -56,8 +56,7 @@ void silk_HP_variable_cutoff( /* Encoder main function */ void silk_encode_do_VAD_FLP( - silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */ - opus_int activity /* I Decision of Opus voice activity detector */ + silk_encoder_state_FLP *psEnc /* I/O Encoder state FLP */ ); /* Encoder main function */ @@ -80,11 +79,22 @@ opus_int silk_init_encoder( opus_int silk_control_encoder( silk_encoder_state_FLP *psEnc, /* I/O Pointer to Silk encoder state FLP */ silk_EncControlStruct *encControl, /* I Control structure */ + const opus_int32 TargetRate_bps, /* I Target max bitrate (bps) */ const opus_int allow_bw_switch, /* I Flag to allow switching audio bandwidth */ const opus_int channelNb, /* I Channel number */ const opus_int force_fs_kHz ); +/****************/ +/* Prefiltering */ +/****************/ +void silk_prefilter_FLP( + silk_encoder_state_FLP *psEnc, /* I/O Encoder state FLP */ + const silk_encoder_control_FLP *psEncCtrl, /* I Encoder control FLP */ + silk_float xw[], /* O Weighted signal */ + const silk_float x[] /* I Speech signal */ +); + /**************************/ /* Noise shaping analysis */ /**************************/ @@ -143,12 +153,15 @@ void silk_find_LPC_FLP( /* LTP analysis */ void silk_find_LTP_FLP( - silk_float XX[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O Weight for LTP quantization */ - silk_float xX[ MAX_NB_SUBFR * LTP_ORDER ], /* O Weight for LTP quantization */ - const silk_float r_ptr[], /* I LPC residual */ + silk_float b[ MAX_NB_SUBFR * LTP_ORDER ], /* O LTP coefs */ + silk_float WLTP[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* O Weight for LTP quantization */ + silk_float *LTPredCodGain, /* O LTP coding gain */ + const silk_float r_lpc[], /* I LPC residual */ const opus_int lag[ MAX_NB_SUBFR ], /* I LTP lags */ + const silk_float Wght[ MAX_NB_SUBFR ], /* I Weights */ const opus_int subfr_length, /* I Subframe length */ - const opus_int nb_subfr /* I number of subframes */ + const opus_int nb_subfr, /* I number of subframes */ + const opus_int mem_offset /* I Number of samples in LTP memory */ ); void silk_LTP_analysis_filter_FLP( @@ -185,15 +198,14 @@ void silk_LPC_analysis_filter_FLP( /* LTP tap quantizer */ void silk_quant_LTP_gains_FLP( - silk_float B[ MAX_NB_SUBFR * LTP_ORDER ], /* O Quantized LTP gains */ + silk_float B[ MAX_NB_SUBFR * LTP_ORDER ], /* I/O (Un-)quantized LTP gains */ opus_int8 cbk_index[ MAX_NB_SUBFR ], /* O Codebook index */ opus_int8 *periodicity_index, /* O Periodicity index */ opus_int32 *sum_log_gain_Q7, /* I/O Cumulative max prediction gain */ - silk_float *pred_gain_dB, /* O LTP prediction gain */ - const silk_float XX[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* I Correlation matrix */ - const silk_float xX[ MAX_NB_SUBFR * LTP_ORDER ], /* I Correlation vector */ - const opus_int subfr_len, /* I Number of samples per subframe */ - const opus_int nb_subfr, /* I Number of subframes */ + const silk_float W[ MAX_NB_SUBFR * LTP_ORDER * LTP_ORDER ], /* I Error weights */ + const opus_int mu_Q10, /* I Mu value (R/D tradeoff) */ + const opus_int lowComplexity, /* I Flag for low complexity */ + const opus_int nb_subfr, /* I number of subframes */ int arch /* I Run-time architecture */ ); @@ -233,6 +245,22 @@ void silk_corrVector_FLP( silk_float *Xt /* O X'*t correlation vector [order] */ ); +/* Add noise to matrix diagonal */ +void silk_regularize_correlations_FLP( + silk_float *XX, /* I/O Correlation matrices */ + silk_float *xx, /* I/O Correlation values */ + const silk_float noise, /* I Noise energy to add */ + const opus_int D /* I Dimension of XX */ +); + +/* Function to solve linear equation Ax = b, where A is an MxM symmetric matrix */ +void silk_solve_LDL_FLP( + silk_float *A, /* I/O Symmetric square matrix, out: reg. */ + const opus_int M, /* I Size of matrix */ + const silk_float *b, /* I Pointer to b vector */ + silk_float *x /* O Pointer to x solution vector */ +); + /* Apply sine window to signal vector. */ /* Window types: */ /* 1 -> sine window from 0 to pi/2 */ @@ -257,8 +285,7 @@ void silk_A2NLSF_FLP( void silk_NLSF2A_FLP( silk_float *pAR, /* O LPC coefficients [ LPC_order ] */ const opus_int16 *NLSF_Q15, /* I NLSF vector [ LPC_order ] */ - const opus_int LPC_order, /* I LPC order */ - int arch /* I Run-time architecture */ + const opus_int LPC_order /* I LPC order */ ); /* Limit, stabilize, and quantize NLSFs */ |