// file: $SPEECH_HOMEWORK4/hw4/class/snr_ratio/v1.0/snr_comp_0.cc
//

// isip include files
//
#include "signal_noise_ratio.h"
#include "signal_noise_ratio_constants.h"

// method: compute_cc
//
// arguments:
//  char_1* file (input) the input file
//
// return: a logical_1 indicating status
//
logical_1 Signal::compute_snr_cc(char_1* in_file_a, char_1* out_file_a) {

  // set the input file value
  //
  set_input_file_cc (in_file_a);
  if (out_file_a != (char_1*)NULL) {
    set_output_file_cc(out_file_a);
  }

  // check for valid durations
  //
  if (frame_duration_d > window_duration_d) {
    error_handler_cc((char_1*)"compute_cc",
		     (char_1*)"frame duration is greater than window");
  }

  int_4 samples_per_frame = calculate_samples_cc(frame_duration_d);
  int_4 samples_per_window = calculate_samples_cc(window_duration_d);
  int_4 total_num_frames = calculate_num_frames_cc(samples_per_frame);

  // set up energy array and allocate memory
  //
  float_4** energy = new float_4*[total_num_frames+50];
  for (int_4 i=0;i<total_num_frames+50;i++) {
    energy[i] = new float_4[num_chans_d];
  }

  int_4 num_energy = (int_4)0;
  
  // process the input data
  //
  process_data_cc(energy, num_energy, samples_per_frame, samples_per_window,
		  total_num_frames);

  // process the information to generate plots
  //
  process_plots_cc(energy, num_energy);

  // clean up
  //
  if (energy != (float_4**)NULL) {
    for (int_4 i=0;i<total_num_frames+50;i++) {
      if (energy[i] != (float_4*)NULL) {
	delete [] energy[i];
      }
    }
    delete [] energy;
  }
  
  // exit gracefully
  //
  return ISIP_TRUE;
}