Searched refs:lag (Results 1 - 25 of 43) sorted by relevance

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/external/libopus/silk/float/
H A DcorrMatrix_FLP.c43 const opus_int Order, /* I Max lag for correlation */
47 opus_int lag; local
51 for( lag = 0; lag < Order; lag++ ) {
52 /* Calculate X[:,lag]'*t */
53 Xt[ lag ] = (silk_float)silk_inner_product_FLP( ptr1, t, L );
62 const opus_int Order, /* I Max lag for correlation */
66 opus_int j, lag; local
80 for( lag
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H A Dprefilter_FLP.c46 opus_int lag, /* I */
102 opus_int j, k, lag; local
114 lag = P->lagPrev;
118 lag = psEncCtrl->pitchL[ k ];
145 silk_prefilt_FLP( P, pxw, pxw, HarmShapeFIR, Tilt, LF_MA_shp, LF_AR_shp, lag, psEnc->sCmn.subfr_length );
164 opus_int lag, /* I */
181 if( lag > 0 ) {
183 idx = lag + LTP_shp_buf_idx;
156 silk_prefilt_FLP( silk_prefilter_state_FLP *P, silk_float st_res[], silk_float xw[], silk_float *HarmShapeFIR, silk_float Tilt, silk_float LF_MA_shp, silk_float LF_AR_shp, opus_int lag, opus_int length ) argument
H A Dpitch_analysis_core_FLP.c48 opus_int start_lag, /* I start lag */
58 opus_int start_lag, /* I start lag */
69 opus_int *pitch_out, /* O Pitch lag values [nb_subfr] */
73 opus_int prevLag, /* I Last lag of previous frame; set to zero is unvoiced */
74 const silk_float search_thres1, /* I First stage threshold for lag candidates 0 - 1 */
75 const silk_float search_thres2, /* I Final threshold for lag candidates 0 - 1 */
98 opus_int CBimax, CBimax_new, lag, start_lag, end_lag, lag_new; local
121 /* Set up frame lengths max / min lag for the sampling frequency */
211 /* Apply short-lag bias */
277 ** SECOND STAGE, operating at 8 kHz, on lag section
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/external/libopus/silk/fixed/
H A DcorrMatrix_FIX.c43 const opus_int order, /* I Max lag for correlation */
48 opus_int lag, i; local
57 for( lag = 0; lag < order; lag++ ) {
62 Xt[ lag ] = inner_prod; /* X[:,lag]'*t */
67 for( lag = 0; lag < order; lag
84 opus_int i, j, lag, rshifts_local, head_room_rshifts; local
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H A Dprefilter_FIX.c44 opus_int lag, /* I Lag for harmonic shaping */
98 opus_int j, k, lag; local
113 lag = P->lagPrev;
119 lag = psEncCtrl->pitchL[ k ];
148 silk_prefilt_FIX( P, x_filt_Q12, pxw_Q3, HarmShapeFIRPacked_Q12, Tilt_Q14, LF_shp_Q14, lag, psEnc->sCmn.subfr_length );
166 opus_int lag, /* I Lag for harmonic shaping */
182 if( lag > 0 ) {
185 idx = lag + LTP_shp_buf_idx;
159 silk_prefilt_FIX( silk_prefilter_state_FIX *P, opus_int32 st_res_Q12[], opus_int32 xw_Q3[], opus_int32 HarmShapeFIRPacked_Q12, opus_int Tilt_Q14, opus_int32 LF_shp_Q14, opus_int lag, opus_int length ) argument
H A Dpitch_analysis_core_FIX.c62 opus_int start_lag, /* I lag offset to search around */
72 opus_int start_lag, /* I lag offset to search around */
83 opus_int *pitch_out, /* O 4 pitch lag values */
87 opus_int prevLag, /* I Last lag of previous frame; set to zero is unvoiced */
88 const opus_int32 search_thres1_Q16, /* I First stage threshold for lag candidates 0 - 1 */
89 const opus_int search_thres2_Q13, /* I Final threshold for lag candidates 0 - 1 */
108 opus_int CBimax, CBimax_new, CBimax_old, lag, start_lag, end_lag, lag_new; local
131 /* Set up frame lengths max / min lag for the sampling frequency */
227 /* Combine two subframes into single correlation measure and apply short-lag bias */
236 /* Only short-lag bia
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/external/speex/libspeex/
H A Dlpc.h42 spx_word16_t *ac, /* out: [0...lag-1] ac values */
43 int lag, int n);
H A Dlpc_bfin.h39 spx_word16_t *ac, /* out: [0...lag-1] ac values */
40 int lag,
50 ac32top = ac32+lag-1;
53 lag_1 = lag-1;
71 xs = x+lag-1;
119 for (i=0;i<lag;i++)
37 _spx_autocorr( const spx_word16_t *x, spx_word16_t *ac, int lag, int n ) argument
H A Dlpc.c124 * for lags between 0 and lag-1, and x == 0 outside 0...n-1
130 spx_word16_t *ac, /* out: [0...lag-1] ac values */
131 int lag,
157 for (i=0;i<lag;i++)
179 * for lags between 0 and lag-1, and x == 0 outside 0...n-1
183 float *ac, /* out: [0...lag-1] ac values */
184 int lag,
190 while (lag--)
192 for (i = lag, d = 0; i < n; i++)
193 d += x[i] * x[i-lag];
128 _spx_autocorr( const spx_word16_t *x, spx_word16_t *ac, int lag, int n ) argument
181 _spx_autocorr( const spx_word16_t *x, float *ac, int lag, int n ) argument
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/external/webrtc/webrtc/modules/audio_coding/codecs/ilbc/
H A Dcomp_corr.h26 * of last subframe at given lag.
33 size_t lag, /* (i) pitch lag */
H A Dcomp_corr.c23 * of last subframe at given lag.
30 size_t lag, /* (i) pitch lag */
37 w16ptr=&buffer[bLen-sRange-lag];
26 WebRtcIlbcfix_CompCorr( int32_t *corr, int32_t *ener, int16_t *buffer, size_t lag, size_t bLen, size_t sRange, int16_t scale ) argument
H A Dget_cd_vec.c35 size_t lag; local
59 /* Calculate lag */
63 lag = k / 2;
65 WebRtcIlbcfix_CreateAugmentedVec(lag, mem+lMem, cbvec);
105 /* Calculate lag index */
106 lag = (cbveclen<<1)-20+index-base_size-lMem-1;
108 WebRtcIlbcfix_CreateAugmentedVec(lag, tempbuff2+SUBL+5, cbvec);
H A Denhancer_interface.c33 size_t WebRtcIlbcfix_EnhancerInterface( /* (o) Estimated lag in end of in[] */
39 size_t lag=20, tlag=20; local
174 lag = lagmax[ind] + 10;
176 /* Store the estimated lag in the non-downsampled domain */
177 enh_period[ENH_NBLOCKS_TOT - new_blocks + iblock] = lag * 8;
179 /* Store the estimated lag for backward PLC */
182 tlag = lag * 2;
186 tlag = lag * 2;
190 lag *= 2;
195 /* Calculate the best lag o
349 lag); local
360 lag); local
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H A Ddecode.c191 size_t lag; local
193 /* Find last lag (since the enhancer is not called to give this info) */
194 lag = 20;
196 lag = WebRtcIlbcfix_XcorrCoef(
198 &decresidual[iLBCdec_inst->blockl-60-lag],
200 80, lag, -1);
202 lag = WebRtcIlbcfix_XcorrCoef(
204 &decresidual[iLBCdec_inst->blockl-ENH_BLOCKL-lag],
206 100, lag, -1);
209 /* Store lag (i
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H A Ddo_plc.c36 size_t inlag, /* (i) pitch lag */
44 size_t j, lag, randlag; local
85 /* Search around the previous lag +/-3 to find the
87 lag = inlag - 3;
93 iLBCdec_inst->prevResidual, lag, iLBCdec_inst->blockl, corrLen, scale3);
106 this lag is better or not. To avoid the division,
131 /* New lag is better => record lag, measure and domain */
132 lag = j;
140 /* Calculate the periodicity for the lag wit
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/external/libopus/silk/
H A Ddecode_pitch.c46 opus_int lag, k, min_lag, max_lag, cbk_size; local
71 lag = min_lag + lagIndex;
74 pitch_lags[ k ] = lag + matrix_ptr( Lag_CB_ptr, k, contourIndex, cbk_size );
H A DNSQ.c45 const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lag */
59 opus_int lag, /* I Pitch lag */
89 opus_int k, lag, start_idx, LSF_interpolation_flag; local
101 /* Set unvoiced lag to the previous one, overwrite later for voiced */
102 lag = NSQ->lagPrev;
135 lag = pitchL[ k ];
140 start_idx = psEncC->ltp_mem_length - lag - psEncC->predictLPCOrder - LTP_ORDER / 2;
154 AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], Gains_Q16[ k ], Lambda_Q10,
185 opus_int lag, /*
175 silk_noise_shape_quantizer( silk_nsq_state *NSQ, opus_int signalType, const opus_int32 x_sc_Q10[], opus_int8 pulses[], opus_int16 xq[], opus_int32 sLTP_Q15[], const opus_int16 a_Q12[], const opus_int16 b_Q14[], const opus_int16 AR_shp_Q13[], opus_int lag, opus_int32 HarmShapeFIRPacked_Q14, opus_int Tilt_Q14, opus_int32 LF_shp_Q14, opus_int32 Gain_Q16, opus_int Lambda_Q10, opus_int offset_Q10, opus_int length, opus_int shapingLPCOrder, opus_int predictLPCOrder ) argument
387 opus_int i, lag; local
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H A Ddecode_core.c45 opus_int i, k, lag = 0, start_idx, sLTP_buf_idx, NLSF_interpolation_flag, signalType; local
137 lag = psDecCtrl->pitchL[ k ];
142 start_idx = psDec->ltp_mem_length - lag - psDec->LPC_order - LTP_ORDER / 2;
157 for( i = 0; i < lag + LTP_ORDER/2; i++ ) {
163 for( i = 0; i < lag + LTP_ORDER/2; i++ ) {
173 pred_lag_ptr = &sLTP_Q15[ sLTP_buf_idx - lag + LTP_ORDER / 2 ];
H A DNSQ_del_dec.c72 const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lag */
92 opus_int lag, /* I Pitch lag */
127 opus_int i, k, lag, start_idx, LSF_interpolation_flag, Winner_ind, subfr; local
142 /* Set unvoiced lag to the previous one, overwrite later for voiced */
143 lag = NSQ->lagPrev;
166 /* For voiced frames limit the decision delay to lower than the pitch lag */
172 if( lag > 0 ) {
173 decisionDelay = silk_min_int( decisionDelay, lag - LTP_ORDER / 2 - 1 );
206 lag
306 silk_noise_shape_quantizer_del_dec( silk_nsq_state *NSQ, NSQ_del_dec_struct psDelDec[], opus_int signalType, const opus_int32 x_Q10[], opus_int8 pulses[], opus_int16 xq[], opus_int32 sLTP_Q15[], opus_int32 delayedGain_Q10[], const opus_int16 a_Q12[], const opus_int16 b_Q14[], const opus_int16 AR_shp_Q13[], opus_int lag, opus_int32 HarmShapeFIRPacked_Q14, opus_int Tilt_Q14, opus_int32 LF_shp_Q14, opus_int32 Gain_Q16, opus_int Lambda_Q10, opus_int offset_Q10, opus_int length, opus_int subfr, opus_int shapingLPCOrder, opus_int predictLPCOrder, opus_int warping_Q16, opus_int nStatesDelayedDecision, opus_int *smpl_buf_idx, opus_int decisionDelay ) argument
650 opus_int i, k, lag; local
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/external/flac/libFLAC/include/private/
H A Dlpc.h54 * OUT out[0,lag-1]
62 * Compute the autocorrelation for lags between 0 and lag-1.
64 * Asserts that lag > 0.
68 * IN 0 < lag <= data_len
69 * OUT autoc[0,lag-1]
71 void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
75 void FLAC__lpc_compute_autocorrelation_asm_ia32(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
76 void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_4_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
77 void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_8_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]);
78 void FLAC__lpc_compute_autocorrelation_asm_ia32_sse_lag_12_old(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__rea
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/external/libopus/celt/
H A Dcelt_lpc.h52 const opus_val16 *window, int overlap, int lag, int n, int arch);
/external/webrtc/webrtc/modules/audio_coding/codecs/isac/main/source/
H A Dfilter_functions.c99 size_t lag, n; local
103 for (lag = 0; lag <= order; lag++)
106 x_lag = &x[lag];
108 for (n = 1; n < N - lag; n++) {
113 r[lag] = sum;
H A Dpitch_filter.c23 * y(z) = x(z) + damper(z) * gain * (x(z) + y(z)) * z ^ (-lag);
26 * y(z) = x(z) - damper(z) * gain * (x(z) + y(z)) * z ^ (-lag);
28 * Note that |lag| is a floating number so we perform an interpolation to
29 * obtain the correct |lag|.
93 * lag : pitch-lag for the current segment of input.
94 * lag_offset : the offset of lag w.r.t. current sample.
109 double lag; member in struct:__anon21419
145 /* Index of |parameters->buffer| where samples are read for fractional-lag
218 /* Compute integer lag
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/external/aac/libAACenc/src/
H A Daacenc_tns.cpp503 Calculate autocorellation value for one lag
508 \param lag to be calculated
509 \param scaling of the lag
516 const INT lag,
523 if (lag==0) {
529 for (i=startLine; i<(stopLine-lag); i++) {
530 result += (fMult(spectrum[i], spectrum[i+lag])>>scale);
597 int i, idx0, idx1, idx2, idx3, idx4, lag; local
643 /* compute autocorrelation value at lag zero, i. e. energy, for each quarter */
658 for (lag
512 FDKaacEnc_CalcAutoCorrValue( const FIXP_DBL *spectrum, const INT startLine, const INT stopLine, const INT lag, const INT scale ) argument
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/external/jemalloc/test/src/
H A DSFMT.c643 int lag; local
655 lag = 11;
657 lag = 7;
659 lag = 5;
661 lag = 3;
663 mid = (size - lag) / 2;
675 psfmt32[idxof(mid + lag)] += r;
684 psfmt32[idxof((i + mid + lag) % N32)] += r;
693 psfmt32[idxof((i + mid + lag) % N32)] += r;
702 psfmt32[idxof((i + mid + lag)
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