build: More build fixes and cleanups

webrtc/modules/audio_coding/codecs/isac/main/source/intialize.c

@@ -0,0 +1,171 @@
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+/* encode.c  - Encoding function for the iSAC coder */
+
+#include "structs.h"
+#include "codec.h"
+#include "pitch_estimator.h"
+
+#include <math.h>
+
+void WebRtcIsac_InitMasking(MaskFiltstr *maskdata) {
+
+  int k;
+
+  for (k = 0; k < WINLEN; k++) {
+    maskdata->DataBufferLo[k] = 0.0;
+    maskdata->DataBufferHi[k] = 0.0;
+  }
+  for (k = 0; k < ORDERLO+1; k++) {
+    maskdata->CorrBufLo[k] = 0.0;
+    maskdata->PreStateLoF[k] = 0.0;
+    maskdata->PreStateLoG[k] = 0.0;
+    maskdata->PostStateLoF[k] = 0.0;
+    maskdata->PostStateLoG[k] = 0.0;
+  }
+  for (k = 0; k < ORDERHI+1; k++) {
+    maskdata->CorrBufHi[k] = 0.0;
+    maskdata->PreStateHiF[k] = 0.0;
+    maskdata->PreStateHiG[k] = 0.0;
+    maskdata->PostStateHiF[k] = 0.0;
+    maskdata->PostStateHiG[k] = 0.0;
+  }
+
+  maskdata->OldEnergy = 10.0;
+  return;
+}
+
+void WebRtcIsac_InitPreFilterbank(PreFiltBankstr *prefiltdata)
+{
+  int k;
+
+  for (k = 0; k < QLOOKAHEAD; k++) {
+    prefiltdata->INLABUF1[k] = 0;
+    prefiltdata->INLABUF2[k] = 0;
+
+    prefiltdata->INLABUF1_float[k] = 0;
+    prefiltdata->INLABUF2_float[k] = 0;
+  }
+  for (k = 0; k < 2*(QORDER-1); k++) {
+    prefiltdata->INSTAT1[k] = 0;
+    prefiltdata->INSTAT2[k] = 0;
+    prefiltdata->INSTATLA1[k] = 0;
+    prefiltdata->INSTATLA2[k] = 0;
+
+    prefiltdata->INSTAT1_float[k] = 0;
+    prefiltdata->INSTAT2_float[k] = 0;
+    prefiltdata->INSTATLA1_float[k] = 0;
+    prefiltdata->INSTATLA2_float[k] = 0;
+  }
+
+  /* High pass filter states */
+  prefiltdata->HPstates[0] = 0.0;
+  prefiltdata->HPstates[1] = 0.0;
+
+  prefiltdata->HPstates_float[0] = 0.0f;
+  prefiltdata->HPstates_float[1] = 0.0f;
+
+  return;
+}
+
+void WebRtcIsac_InitPostFilterbank(PostFiltBankstr *postfiltdata)
+{
+  int k;
+
+  for (k = 0; k < 2*POSTQORDER; k++) {
+    postfiltdata->STATE_0_LOWER[k] = 0;
+    postfiltdata->STATE_0_UPPER[k] = 0;
+
+    postfiltdata->STATE_0_LOWER_float[k] = 0;
+    postfiltdata->STATE_0_UPPER_float[k] = 0;
+  }
+
+  /* High pass filter states */
+  postfiltdata->HPstates1[0] = 0.0;
+  postfiltdata->HPstates1[1] = 0.0;
+
+  postfiltdata->HPstates2[0] = 0.0;
+  postfiltdata->HPstates2[1] = 0.0;
+
+  postfiltdata->HPstates1_float[0] = 0.0f;
+  postfiltdata->HPstates1_float[1] = 0.0f;
+
+  postfiltdata->HPstates2_float[0] = 0.0f;
+  postfiltdata->HPstates2_float[1] = 0.0f;
+
+  return;
+}
+
+
+void WebRtcIsac_InitPitchFilter(PitchFiltstr *pitchfiltdata)
+{
+  int k;
+
+  for (k = 0; k < PITCH_BUFFSIZE; k++) {
+    pitchfiltdata->ubuf[k] = 0.0;
+  }
+  pitchfiltdata->ystate[0] = 0.0;
+  for (k = 1; k < (PITCH_DAMPORDER); k++) {
+    pitchfiltdata->ystate[k] = 0.0;
+  }
+  pitchfiltdata->oldlagp[0] = 50.0;
+  pitchfiltdata->oldgainp[0] = 0.0;
+}
+
+void WebRtcIsac_InitWeightingFilter(WeightFiltstr *wfdata)
+{
+  int k;
+  double t, dtmp, dtmp2, denum, denum2;
+
+  for (k=0;k<PITCH_WLPCBUFLEN;k++)
+    wfdata->buffer[k]=0.0;
+
+  for (k=0;k<PITCH_WLPCORDER;k++) {
+    wfdata->istate[k]=0.0;
+    wfdata->weostate[k]=0.0;
+    wfdata->whostate[k]=0.0;
+  }
+
+  /* next part should be in Matlab, writing to a global table */
+  t = 0.5;
+  denum = 1.0 / ((double) PITCH_WLPCWINLEN);
+  denum2 = denum * denum;
+  for (k=0;k<PITCH_WLPCWINLEN;k++) {
+    dtmp = PITCH_WLPCASYM * t * denum + (1-PITCH_WLPCASYM) * t * t * denum2;
+    dtmp *= 3.14159265;
+    dtmp2 = sin(dtmp);
+    wfdata->window[k] = dtmp2 * dtmp2;
+    t++;
+  }
+}
+
+/* clear all buffers */
+void WebRtcIsac_InitPitchAnalysis(PitchAnalysisStruct *State)
+{
+  int k;
+
+  for (k = 0; k < PITCH_CORR_LEN2+PITCH_CORR_STEP2+PITCH_MAX_LAG/2-PITCH_FRAME_LEN/2+2; k++)
+    State->dec_buffer[k] = 0.0;
+  for (k = 0; k < 2*ALLPASSSECTIONS+1; k++)
+    State->decimator_state[k] = 0.0;
+  for (k = 0; k < 2; k++)
+    State->hp_state[k] = 0.0;
+  for (k = 0; k < QLOOKAHEAD; k++)
+    State->whitened_buf[k] = 0.0;
+  for (k = 0; k < QLOOKAHEAD; k++)
+    State->inbuf[k] = 0.0;
+
+  WebRtcIsac_InitPitchFilter(&(State->PFstr_wght));
+
+  WebRtcIsac_InitPitchFilter(&(State->PFstr));
+
+  WebRtcIsac_InitWeightingFilter(&(State->Wghtstr));
+}