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  /external/webrtc/webrtc/modules/audio_coding/codecs/isac/fix/source/
filters.c 97 int16_t data_vec[PITCH_FRAME_LEN]; local
100 memcpy(data_vec + 1, in, sizeof(int16_t) * (N - 1));
102 data_vec[0] = (int16_t)(state_in[2 * ALLPASSSECTIONS] >> 16); // z^-1 state.
107 AllpassFilterForDec32(data_vec+1, kApUpperQ15, N, state_in);
108 AllpassFilterForDec32(data_vec, kApLowerQ15, N, state_in+ALLPASSSECTIONS);
111 out[n] = WebRtcSpl_AddSatW16(data_vec[2 * n], data_vec[2 * n + 1]);
  /external/webrtc/webrtc/modules/audio_coding/codecs/isac/main/source/
filter_functions.c 226 double data_vec[PITCH_FRAME_LEN]; local
229 memcpy(data_vec+1, in, sizeof(double) * (N-1));
231 data_vec[0] = state_in[2*ALLPASSSECTIONS]; //the z^(-1) state
234 WebRtcIsac_AllpassFilterForDec(data_vec+1, APupper, N, state_in);
235 WebRtcIsac_AllpassFilterForDec(data_vec, APlower, N, state_in+ALLPASSSECTIONS);
238 out[n] = data_vec[2*n] + data_vec[2*n+1];

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