Lines Matching refs:sk
123 s32 sk, sk1, sk2; in dsp_dtmf_goertzel_decode() local
160 sk = (*hfccoeff++) >> 4; in dsp_dtmf_goertzel_decode()
161 if (sk > 32767 || sk < -32767 || sk2 > 32767 in dsp_dtmf_goertzel_decode()
167 (sk * sk) - in dsp_dtmf_goertzel_decode()
168 (((cos2pik[k] * sk) >> 15) * sk2) + in dsp_dtmf_goertzel_decode()
185 sk = 0; in dsp_dtmf_goertzel_decode()
191 sk = ((cos2pik_ * sk1) >> 15) - sk2 + (*buf++); in dsp_dtmf_goertzel_decode()
193 sk1 = sk; in dsp_dtmf_goertzel_decode()
195 sk >>= 8; in dsp_dtmf_goertzel_decode()
197 if (sk > 32767 || sk < -32767 || sk2 > 32767 || sk2 < -32767) in dsp_dtmf_goertzel_decode()
201 (sk * sk) - in dsp_dtmf_goertzel_decode()
202 (((cos2pik[k] * sk) >> 15) * sk2) + in dsp_dtmf_goertzel_decode()