Lines Matching defs:autocorr
139 * @param autocorr autocorrelation coefficients vector
141 static void comp_autocorr(int16_t *buf, int16_t *autocorr)
160 autocorr[0] = av_clipl_int32((int64_t) (temp << scale) +
164 if (!autocorr[0]) {
165 memset(autocorr + 1, 0, LPC_ORDER * sizeof(int16_t));
170 autocorr[i] = av_clipl_int32((int64_t) temp + (1 << 15)) >> 16;
180 * @param autocorr autocorrelation coefficients vector
183 static void levinson_durbin(int16_t *lpc, int16_t *autocorr, int16_t error)
195 temp -= lpc[j] * autocorr[i - j - 1];
196 temp = ((autocorr[i] << 13) + temp) << 3;
229 int16_t autocorr[(LPC_ORDER + 1) * SUBFRAMES];
230 int16_t *autocorr_ptr = autocorr;