| /external/chromium_org/third_party/webrtc/modules/audio_coding/codecs/ilbc/ |
| lsf_check.c | 23 * check for stability of lsf coefficients
27 int16_t *lsf, /* LSF parameters */
28 int dim, /* dimension of LSF */
37 /* LSF separation check*/
44 if ((lsf[pos+1]-lsf[pos])<eps) {
46 if (lsf[pos+1]<lsf[pos]) {
47 lsf[pos+1]= lsf[pos]+eps2
[all...] |
| simple_interpolate_lsf.c | 25 * lsf interpolator (subrutine to LPCencode)
31 interpolated lsf Q12 */
34 interpolated lsf Q12 */
35 int16_t *lsf, /* (i) the unquantized lsf coefficients Q13 */
36 int16_t *lsfdeq, /* (i) the dequantized lsf coefficients Q13 */
37 int16_t *lsfold, /* (i) the unquantized lsf coefficients of
39 int16_t *lsfdeqold, /* (i) the dequantized lsf coefficients of the
51 lsf2 = lsf + length;
57 lsf coefficients *
[all...] |
| simple_lsf_quant.c | 24 * lsf quantizer (subrutine to LPCencode)
28 int16_t *lsfdeq, /* (o) dequantized lsf coefficients
31 int16_t *lsf, /* (i) the lsf coefficient vector to be
33 int16_t lpc_n /* (i) number of lsf sets to quantize */
36 /* Quantize first LSF with memoryless split VQ */
37 WebRtcIlbcfix_SplitVq( lsfdeq, index, lsf,
41 /* Quantize second LSF with memoryless split VQ */
43 lsf + LPC_FILTERORDER, (int16_t*)WebRtcIlbcfix_kLsfCb,
|
| simple_interpolate_lsf.h | 25 * lsf interpolator (subrutine to LPCencode)
31 interpolated lsf Q12 */
34 interpolated lsf Q12 */
35 int16_t *lsf, /* (i) the unquantized lsf coefficients Q13 */
36 int16_t *lsfdeq, /* (i) the dequantized lsf coefficients Q13 */
37 int16_t *lsfold, /* (i) the unquantized lsf coefficients of
39 int16_t *lsfdeqold, /* (i) the dequantized lsf coefficients of the
|
| lpc_encode.c | 35 int16_t *lsf_index, /* (o) lsf quantization index */
41 int16_t lsf[LPC_FILTERORDER * LPC_N_MAX]; local
44 /* Calculate LSF's from the input speech */
45 WebRtcIlbcfix_SimpleLpcAnalysis(lsf, data, iLBCenc_inst);
47 /* Quantize the LSF's */
48 WebRtcIlbcfix_SimpleLsfQ(lsfdeq, lsf_index, lsf, iLBCenc_inst->lpc_n);
50 /* Stableize the LSF's if needed */
54 the optimal LSF and the dequantized LSF */
56 lsf, lsfdeq, iLBCenc_inst->lsfold
[all...] |
| poly_to_lsf.c | 25 int16_t *lsf, /* (o) lsf coefficients (Q13) */
30 WebRtcIlbcfix_Lsp2Lsf(lsp, lsf, 10);
|
| lsf_interpolate_to_poly_enc.c | 24 * lsf interpolator and conversion from lsf to a coefficients
30 int16_t *lsf1, /* (i) first set of lsf coefficients Q13 */
31 int16_t *lsf2, /* (i) second set of lsf coefficients Q13 */
39 /* interpolate LSF */
42 /* Compute the filter coefficients from the LSF */
|
| lsf_check.h | 25 * check for stability of lsf coefficients
29 int16_t *lsf, /* LSF parameters */
30 int dim, /* dimension of LSF */
|
| lsf_interpolate_to_poly_dec.c | 24 * interpolation of lsf coefficients for the decoder
29 int16_t *lsf1, /* (i) first set of lsf coefficients Q13 */
30 int16_t *lsf2, /* (i) second set of lsf coefficients Q13 */
37 /* interpolate LSF */
40 /* Compute the filter coefficients from the LSF */
|
| lsp_to_lsf.h | 25 * conversion from LSP coefficients to LSF coefficients
30 int16_t *lsf, /* (o) Lsf vector 0...Pi in Q13
31 (ordered, so that lsf[i]<lsf[i+1]) */
|
| simple_lsf_quant.h | 25 * lsf quantizer (subrutine to LPCencode)
29 int16_t *lsfdeq, /* (o) dequantized lsf coefficients
32 int16_t *lsf, /* (i) the lsf coefficient vector to be
34 int16_t lpc_n /* (i) number of lsf sets to quantize */
|
| lsp_to_lsf.c | 23 * conversion from LSP coefficients to LSF coefficients
28 int16_t *lsf, /* (o) Lsf vector 0...Pi in Q13
29 (ordered, so that lsf[i]<lsf[i+1]) */
35 int16_t freq; /* lsf/(2*pi) (Q16) */
44 For each LSP the lsf is calculated by first order approximation
48 lsfPtr = &lsf[9];
76 /* lsf = freq*2*pi */
|
| lsf_interpolate_to_poly_enc.h | 25 * lsf interpolator and conversion from lsf to a coefficients
31 int16_t *lsf1, /* (i) first set of lsf coefficients Q13 */
32 int16_t *lsf2, /* (i) second set of lsf coefficients Q13 */
|
| poly_to_lsf.h | 25 * conversion from lpc coefficients to lsf coefficients
29 int16_t *lsf, /* (o) lsf coefficients (Q13) */
|
| decoder_interpolate_lsf.c | 25 * obtain synthesis and weighting filters form lsf coefficients
32 int16_t *lsfdeq, /* (i) dequantized lsf coefficients */
33 int16_t length, /* (i) length of lsf coefficient vector */
44 /* subframe 1: Interpolation between old and first LSF */
51 /* subframes 2 to 6: interpolation between first and last LSF */
63 /* subframes 1 to 4: interpolation between old and new LSF */
|
| decoder_interpolate_lsf.h | 25 * obtain synthesis and weighting filters form lsf coefficients
32 int16_t *lsfdeq, /* (i) dequantized lsf coefficients */
33 int16_t length, /* (i) length of lsf coefficient vector */
|
| lsf_interpolate_to_poly_dec.h | 25 * interpolation of lsf coefficients for the decoder
30 int16_t *lsf1, /* (i) first set of lsf coefficients Q13 */
31 int16_t *lsf2, /* (i) second set of lsf coefficients Q13 */
|
| lsf_to_lsp.h | 25 * conversion from lsf to lsp coefficients
29 int16_t *lsf, /* (i) lsf in Q13 values between 0 and pi */
|
| lsf_to_lsp.c | 23 * conversion from lsf to lsp coefficients
27 int16_t *lsf, /* (i) lsf in Q13 values between 0 and pi */
39 freq = (int16_t)WEBRTC_SPL_MUL_16_16_RSFT(lsf[i], 20861, 15);
|
| simple_lsf_dequant.c | 23 * obtain dequantized lsf coefficients from quantization index
27 int16_t *lsfdeq, /* (o) dequantized lsf coefficients */
33 /* decode first LSF */
47 /* decode last LSF */
|
| lsf_to_poly.h | 25 * Convert from LSF coefficients to A coefficients
30 int16_t *lsf /* (i) line spectral frequencies in Q13 */
|
| simple_lpc_analysis.h | 29 int16_t *lsf, /* (o) lsf coefficients */
|
| simple_lsf_dequant.h | 25 * obtain dequantized lsf coefficients from quantization index
29 int16_t *lsfdeq, /* (o) dequantized lsf coefficients */
|
| lsf_to_poly.c | 26 int16_t *lsf /* (i) line spectral frequencies in Q13 */
36 /* Convert lsf to lsp */
37 WebRtcIlbcfix_Lsf2Lsp(lsf, lsp, LPC_FILTERORDER);
|
| simple_lpc_analysis.c | 30 int16_t *lsf, /* (o) lsf coefficients */
85 /* Convert from A to LSF representation */
86 WebRtcIlbcfix_Poly2Lsf(lsf + k*LPC_FILTERORDER, A);
|
