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/third_party/ffmpeg/libavcodec/
H A Dg723_1enc.c139 * @param autocorr autocorrelation coefficients vector
141 static void comp_autocorr(int16_t *buf, int16_t *autocorr) in comp_autocorr() argument
160 autocorr[0] = av_clipl_int32((int64_t) (temp << scale) + in comp_autocorr()
164 if (!autocorr[0]) { in comp_autocorr()
165 memset(autocorr + 1, 0, LPC_ORDER * sizeof(int16_t)); in comp_autocorr()
170 autocorr[i] = av_clipl_int32((int64_t) temp + (1 << 15)) >> 16; in comp_autocorr()
180 * @param autocorr autocorrelation coefficients vector
183 static void levinson_durbin(int16_t *lpc, int16_t *autocorr, int16_t error) in levinson_durbin() argument
195 temp -= lpc[j] * autocorr[i - j - 1]; in levinson_durbin()
196 temp = ((autocorr[ in levinson_durbin()
229 int16_t autocorr[(LPC_ORDER + 1) * SUBFRAMES]; comp_lpc_coeff() local
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