Lines Matching refs:lpc
36 float lpc[16];
143 static inline int silk_is_lpc_stable(const int16_t lpc[16], int order)
152 DC_resp += lpc[k];
153 row[k] = lpc[k] * 4096;
224 int16_t lpc[16]; // Q12
280 lpc[k] = av_clip_int16(x);
281 lpc32[k] = lpc[k] << 5; // shortcut mandated by the spec; drops lower 5 bits
285 lpc[k] = (lpc32[k] + 16) >> 5;
290 for (i = 1; i <= 16 && !silk_is_lpc_stable(lpc, order); i++) {
296 lpc[k] = (lpc32[k] + 16) >> 5;
302 lpcf[i] = lpc[i] / 4096.0f;
307 float lpc_leadin[16], float lpc[16],
387 memcpy(lpc_leadin, frame->lpc, 16 * sizeof(float));
392 silk_lsf2lpc(nlsf, lpc, order);
395 silk_lsf2lpc(nlsf, lpc, order);
399 memcpy(frame->lpc, lpc, order * sizeof(lpc[0]));
680 float *lpc = frame->lpc_history + SILK_HISTORY + i * s->sflength;
724 sum += lpc_coeff[k - 1] * lpc[j - k];
726 lpc[j] = sum;
776 memset(frame->lpc, 0, sizeof(frame->lpc));