/*  signal-interleave.c - (c) rohan drape, 2005-2006 */

#include "float.h"
#include "signal-interleave.h"

/* f = number of frames, c = number of channels */

void signal_interleave(f32 *dst, const f32 *src, int f, int c)
{
  int i, k = 0;
  for(i = 0; i < f; i++) {
    int j;
    for(j = 0; j < c; j++) {
      dst[k++] = src[(j*f)+i];
    }
  }
}

void signal_uninterleave(f32 *dst, const f32 *src, int f, int c)
{
  int i, k = 0;
  for(i = 0; i < f; i++) {
    int j;
    for(j = 0; j < c; j++) {
      dst[(j*f)+i] = src[k++];
    }
  }
}

void signal_interleave_to(f32 *dst, const f32 **src, int f, int c)
{
  int i, k = 0;
  for(i = 0; i < f; i++) {
    int j;
    for(j = 0; j < c; j++) {
      dst[k++] = src[j][i];
    }
  }
}

void signal_uninterleave_to(f32 **dst, const f32 *src, int f, int c)
{
  int i, k = 0;
  for(i = 0; i < f; i++) {
    int j;
    for(j = 0; j < c; j++) {
      dst[j][i] = src[k++];
    }
  }
}