-/*
-** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-**
-** All rights reserved.
-**
-** Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**
-** * Redistributions of source code must retain the above copyright
-** notice, this list of conditions and the following disclaimer.
-** * Redistributions in binary form must reproduce the above copyright
-** notice, this list of conditions and the following disclaimer in
-** the documentation and/or other materials provided with the
-** distribution.
-** * Neither the author nor the names of any contributors may be used
-** to endorse or promote products derived from this software without
-** specific prior written permission.
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
-** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
-** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include <sndfile.h>
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846264338
-#endif
-
-#define SAMPLE_RATE 44100
-#define SAMPLE_COUNT (SAMPLE_RATE * 4) /* 4 seconds */
-#define AMPLITUDE (1.0 * 0x7F000000)
-#define LEFT_FREQ (344.0 / SAMPLE_RATE)
-#define RIGHT_FREQ (466.0 / SAMPLE_RATE)
-
-int
-main (void)
-{ SNDFILE *file ;
- SF_INFO sfinfo ;
- int k ;
- int *buffer ;
-
- if (! (buffer = malloc (2 * SAMPLE_COUNT * sizeof (int))))
- { printf ("Malloc failed.\n") ;
- exit (0) ;
- } ;
-
- memset (&sfinfo, 0, sizeof (sfinfo)) ;
-
- sfinfo.samplerate = SAMPLE_RATE ;
- sfinfo.frames = SAMPLE_COUNT ;
- sfinfo.channels = 2 ;
- sfinfo.format = (SF_FORMAT_WAV | SF_FORMAT_PCM_24) ;
-
- if (! (file = sf_open ("sine.wav", SFM_WRITE, &sfinfo)))
- { printf ("Error : Not able to open output file.\n") ;
- return 1 ;
- } ;
-
- if (sfinfo.channels == 1)
- { for (k = 0 ; k < SAMPLE_COUNT ; k++)
- buffer [k] = AMPLITUDE * sin (LEFT_FREQ * 2 * k * M_PI) ;
- }
- else if (sfinfo.channels == 2)
- { for (k = 0 ; k < SAMPLE_COUNT ; k++)
- { buffer [2 * k] = AMPLITUDE * sin (LEFT_FREQ * 2 * k * M_PI) ;
- buffer [2 * k + 1] = AMPLITUDE * sin (RIGHT_FREQ * 2 * k * M_PI) ;
- } ;
- }
- else
- { printf ("makesine can only generate mono or stereo files.\n") ;
- exit (1) ;
- } ;
-
- if (sf_write_int (file, buffer, sfinfo.channels * SAMPLE_COUNT) !=
- sfinfo.channels * SAMPLE_COUNT)
- puts (sf_strerror (file)) ;
-
- sf_close (file) ;
- return 0 ;
-} /* main */
-