CAutoGain::ProcessSamples

/* CAutoGain::ProcessSamples(short*, int) */

void __thiscall CAutoGain::ProcessSamples(CAutoGain *this,short *param_1,int param_2)

{
  int iVar1;
  int iVar2;
  ushort *puVar3;
  ushort *puVar4;
  int iVar5;
  ushort uVar6;
  float fVar7;
  float fVar8;
  float fVar9;
  
  if (param_2 != 0) {
    iVar1 = *(int *)this;
    do {
      iVar2 = *(int *)(this + 0xc);
      iVar5 = iVar1 - iVar2;
      if (param_2 < iVar1 - iVar2) {
        iVar5 = param_2;
      }
      if (0 < iVar5) {
        puVar4 = (ushort *)param_1;
        do {
          uVar6 = (short)*puVar4 >> 0xf;
          *(int *)(this + 0x10) = *(int *)(this + 0x10) + (int)(short)((*puVar4 ^ uVar6) - uVar6);
          uVar6 = *puVar4;
          if ((short)uVar6 < 0) {
            uVar6 = -uVar6;
          }
          iVar1 = *(int *)(this + 0x14);
          if (*(int *)(this + 0x14) <= (int)(short)uVar6) {
            iVar1 = (int)(short)uVar6;
          }
          *(int *)(this + 0x14) = iVar1;
          *(int *)(this + 0xc) = iVar2 + 1;
          iVar1 = (int)(short)*puVar4 * (*(int *)(this + 0x28) * iVar2 + *(int *)(this + 0x24)) >> 7
          ;
          if (iVar1 < -0x8000) {
            iVar1 = -0x8000;
          }
          if (0x7fff < iVar1) {
            iVar1 = 0x7fff;
          }
          puVar3 = puVar4 + 1;
          *puVar4 = (ushort)iVar1;
          iVar2 = *(int *)(this + 0xc);
          puVar4 = puVar3;
        } while (puVar3 != (ushort *)(param_1 + iVar5));
        iVar1 = *(int *)this;
      }
      param_2 = param_2 - iVar5;
      param_1 = param_1 + iVar5;
      if (iVar2 % iVar1 == 0) {
        *(undefined4 *)(this + 0xc) = 0;
        fVar8 = *(float *)(this + 0x20) * *(float *)(this + 0x18);
        *(float *)(this + 0x1c) = fVar8;
        *(int *)(this + 0x24) = (int)(fVar8 * 128.0);
        iVar2 = *(int *)(this + 0x10);
        *(undefined4 *)(this + 0x10) = 0;
        iVar5 = *(int *)(this + 0x14);
        *(undefined4 *)(this + 0x14) = 0;
        fVar9 = 32767.0 / ((float)(iVar5 - iVar2 / iVar1) * *(float *)(this + 8) +
                          (float)(iVar2 / iVar1));
        fVar7 = *(float *)(this + 4);
        if (fVar9 <= *(float *)(this + 4)) {
          fVar7 = fVar9;
        }
        fVar7 = fVar7 * *(float *)(this + 0x18);
        *(float *)(this + 0x20) = fVar7;
        *(int *)(this + 0x28) = (int)(((fVar7 - fVar8) / (float)(iVar1 + -1)) * 128.0);
      }
    } while (param_2 != 0);
  }
  return;
}