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downsample_test.c

/*
** Copyright (C) 2008 Erik de Castro Lopo <erikd@mega-nerd.com>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/

#include <stdio.h>
#include <samplerate.h>

#include "util.h"

static void
downsample_test (int converter)
{     static float in [1000], out[10] ;
      SRC_DATA data ;

    printf ("        downsample_test     (%-28s) ....... ", src_get_name (converter)) ;
      fflush (stdout) ;

      data.src_ratio = 1.0 / 255.0 ;
      data.input_frames = ARRAY_LEN (in) ;
      data.output_frames = ARRAY_LEN (out) ;
      data.data_in = in ;
      data.data_out = out ;

      src_simple (&data, converter, 1) ;

      puts ("ok") ;
} /* downsample_test */

int
main (void)
{
      puts ("") ;

      downsample_test (SRC_ZERO_ORDER_HOLD) ;
      downsample_test (SRC_LINEAR) ;
      downsample_test (SRC_SINC_FASTEST) ;
      downsample_test (SRC_SINC_MEDIUM_QUALITY) ;
      downsample_test (SRC_SINC_BEST_QUALITY) ;

      puts ("") ;

      return 0 ;
} /* main */

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