// file: compute_0.C
//

#include "./process_data.h"

// important definitions
//

//-----------------------------------------------------------------------------
// function: compute_C
//
// arguments:
//  float* buffer_out:		(output) one frame of output data
//  float* buffer_in:		(input)  one analysis window of data
//  float sample_frequency:	(output) sample frequency of the signals
//  float frame_duration:	(output) frame_duration of the analysis
//  float window_duration:	(output) window_duration of the analysis
//
// returns:
//  L_TRUE if no error was encounterd
//
// computes one frame of output data from one analysis window.
//-----------------------------------------------------------------------------
int compute_C(float* buffer_out, float* buffer_in, float sample_frequency,
	      float frame_duration, float window_duration) {

  // compute the offset
  //
  int frame_dur_samples = (int)round_C(frame_duration * sample_frequency);
  int offset = (int)round_C((window_duration - frame_duration)/2.0 *
		       sample_frequency);

  // transfer the data
  for (int sample_num=0; sample_num<frame_dur_samples; sample_num++) {
    buffer_out[sample_num] = buffer_in[offset + sample_num];
  }

  // exit gracefully
  //
  return L_TRUE;
}