Searched refs:sk2 (Results 1 – 2 of 2) sorted by relevance
120 s32 sk, sk1, sk2; in dsp_dtmf_goertzel_decode() local156 sk2 = (*hfccoeff++)>>4; in dsp_dtmf_goertzel_decode()158 if (sk > 32767 || sk < -32767 || sk2 > 32767 in dsp_dtmf_goertzel_decode()159 || sk2 < -32767) in dsp_dtmf_goertzel_decode()165 (((cos2pik[k] * sk) >> 15) * sk2) + in dsp_dtmf_goertzel_decode()166 (sk2 * sk2); in dsp_dtmf_goertzel_decode()184 sk2 = 0; in dsp_dtmf_goertzel_decode()188 sk = ((cos2pik_*sk1)>>15) - sk2 + (*buf++); in dsp_dtmf_goertzel_decode()189 sk2 = sk1; in dsp_dtmf_goertzel_decode()193 sk2 >>= 8; in dsp_dtmf_goertzel_decode()[all …]
451 sk2; in isdn_audio_goertzel() local466 sk = sk1 = sk2 = 0; in isdn_audio_goertzel()468 sk = sample[n] + ((cos2pik[k] * sk1) >> 15) - sk2; in isdn_audio_goertzel()469 sk2 = sk1; in isdn_audio_goertzel()474 sk2 >>= 1; in isdn_audio_goertzel()481 if (sk2 < -32768 || sk2 > 32767) in isdn_audio_goertzel()483 "isdn_audio: dtmf goertzel overflow, sk2=%d\n", sk2); in isdn_audio_goertzel()486 ((((cos2pik[k] * sk) >> 15) * sk2) >> AMP_BITS) + in isdn_audio_goertzel()487 ((sk2 * sk2) >> AMP_BITS); in isdn_audio_goertzel()