Searched defs:lag (Results 1 - 19 of 19) sorted by relevance

/external/chromium_org/third_party/opus/src/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 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.c44 const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lag */
58 opus_int lag, /* I Pitch lag */
88 opus_int k, lag, start_idx, LSF_interpolation_flag; local
99 /* Set unvoiced lag to the previous one, overwrite later for voiced */
100 lag = NSQ->lagPrev;
129 lag = pitchL[ k ];
134 start_idx = psEncC->ltp_mem_length - lag - psEncC->predictLPCOrder - LTP_ORDER / 2;
148 AR_shp_Q13, lag, HarmShapeFIRPacked_Q14, Tilt_Q14[ k ], LF_shp_Q14[ k ], Gains_Q16[ k ], Lambda_Q10,
178 opus_int lag, /*
168 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
380 opus_int i, lag; local
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H A DPLC.c175 opus_int lag, idx, sLTP_buf_idx, shift1, shift2; local
267 lag = silk_RSHIFT_ROUND( psPLC->pitchL_Q8, 8 );
271 idx = psDec->ltp_mem_length - lag - psDec->LPC_order - LTP_ORDER / 2;
286 pred_lag_ptr = &sLTP_Q14[ sLTP_buf_idx - lag + LTP_ORDER / 2 ];
312 /* Slowly increase pitch lag */
315 lag = silk_RSHIFT_ROUND( psPLC->pitchL_Q8, 8 );
361 psDecCtrl->pitchL[ i ] = lag;
H A DNSQ_del_dec.c69 const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lag */
89 opus_int lag, /* I Pitch lag */
124 opus_int i, k, lag, start_idx, LSF_interpolation_flag, Winner_ind, subfr; local
138 /* Set unvoiced lag to the previous one, overwrite later for voiced */
139 lag = NSQ->lagPrev;
161 /* For voiced frames limit the decision delay to lower than the pitch lag */
167 if( lag > 0 ) {
168 decisionDelay = silk_min_int( decisionDelay, lag - LTP_ORDER / 2 - 1 );
196 lag
295 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
636 opus_int i, k, lag; local
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/external/chromium_org/third_party/opus/src/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 */
57 opus_int start_lag, /* I start lag */
68 opus_int *pitch_out, /* O Pitch lag values [nb_subfr] */
72 opus_int prevLag, /* I Last lag of previous frame; set to zero is unvoiced */
73 const silk_float search_thres1, /* I First stage threshold for lag candidates 0 - 1 */
74 const silk_float search_thres2, /* I Final threshold for lag candidates 0 - 1 */
95 opus_int CBimax, CBimax_new, lag, start_lag, end_lag, lag_new; local
118 /* Set up frame lengths max / min lag for the sampling frequency */
205 /* Apply short-lag bias */
277 ** SECOND STAGE, operating at 8 kHz, on lag section
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/external/speex/libspeex/
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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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
/external/chromium_org/third_party/opus/src/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.c43 opus_int lag, /* I Lag for harmonic shaping */
97 opus_int j, k, lag; local
111 lag = P->lagPrev;
115 lag = psEncCtrl->pitchL[ k ];
144 silk_prefilt_FIX( P, x_filt_Q12, pxw_Q3, HarmShapeFIRPacked_Q12, Tilt_Q14, LF_shp_Q14, lag, psEnc->sCmn.subfr_length );
161 opus_int lag, /* I Lag for harmonic shaping */
177 if( lag > 0 ) {
180 idx = lag + LTP_shp_buf_idx;
154 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.c47 opus_int start_lag, /* I lag offset to search around */
56 opus_int start_lag, /* I lag offset to search around */
73 opus_int *pitch_out, /* O 4 pitch lag values */
77 opus_int prevLag, /* I Last lag of previous frame; set to zero is unvoiced */
78 const opus_int32 search_thres1_Q16, /* I First stage threshold for lag candidates 0 - 1 */
79 const opus_int search_thres2_Q15, /* I Final threshold for lag candidates 0 - 1 */
97 opus_int CBimax, CBimax_new, CBimax_old, lag, start_lag, end_lag, lag_new; local
119 /* Set up frame lengths max / min lag for the sampling frequency */
215 /* Combine two subframes into single correlation measure and apply short-lag bias */
227 /* Only short-lag bia
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/external/chromium_org/third_party/opus/src/celt/
H A Dcelt_lpc.c141 opus_val32 *ac, /* out: [0...lag-1] ac values */
144 int lag,
176 while (lag>=0)
178 for (i = lag, d = 0; i < n; i++)
179 d += xx[i] * xx[i-lag];
180 ac[lag] = d;
181 /*printf ("%f ", ac[lag]);*/
182 lag--;
139 _celt_autocorr( const opus_val16 *x, opus_val32 *ac, const opus_val16 *window, int overlap, int lag, int n ) argument
H A Dpitch.c176 int lag; local
192 lag = len+max_pitch;
195 ALLOC(y_lp4, lag>>2, opus_val16);
201 for (j=0;j<lag>>2;j++)
206 ymax = celt_maxabs16(y_lp4, lag>>2);
212 for (j=0;j<lag>>2;j++)
/external/flac/libFLAC/
H A Dlpc.c63 void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]) argument
70 FLAC__ASSERT(lag > 0);
71 FLAC__ASSERT(lag <= data_len);
80 while(lag--) {
81 for(i = lag, d = 0.0; i < data_len; i++)
82 d += data[i] * data[i - lag];
83 autoc[lag] = d;
89 * ('data_len' is usually much larger than 'lag')
93 const unsigned limit = data_len - lag;
95 FLAC__ASSERT(lag >
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/external/webrtc/src/modules/audio_coding/codecs/isac/main/source/
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:__anon28067
145 /* Index of |parameters->buffer| where samples are read for fractional-lag
218 /* Compute integer lag
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H A Dfilter_functions.c94 int lag, n; local
98 for (lag = 0; lag <= order; lag++)
101 x_lag = &x[lag];
103 for (n = 1; n < N - lag; n++) {
108 r[lag] = sum;
/external/aac/libAACenc/src/
H A Daacenc_tns.cpp533 Calculate autocorellation value for one lag
538 \param lag to be calculated
539 \param scaling of the lag
546 const INT lag,
553 if (lag==0) {
559 for (i=startLine; i<(stopLine-lag); i++) {
560 result += (fMult(spectrum[i], spectrum[i+lag])>>scale);
626 int i, idx0, idx1, idx2, idx3, idx4, lag; local
670 /* compute autocorrelation value at lag zero, i. e. energy, for each quarter */
683 for (lag
542 FDKaacEnc_CalcAutoCorrValue( const FIXP_DBL *spectrum, const INT startLine, const INT stopLine, const INT lag, const INT scale ) argument
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