third_party_libsnd/examples/generate.c

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/*
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** Copyright (C) 2002-2009 Erik de Castro Lopo <erikd@mega-nerd.com>
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**
** All rights reserved.
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**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
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**
** * 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.
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*/
#include "sfconfig.h"
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <sndfile.h>
#define BUFFER_LEN 4096
static void encode_file (const char *infilename, const char *outfilename, int filetype) ;
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int
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main (int argc, char **argv)
{
if (argc != 2)
{ puts ("\nEncode a single input file into a number of different output ") ;
puts ("encodings. These output encodings can then be moved to another ") ;
puts ("OS for testing.\n") ;
puts (" Usage : generate <filename>\n") ;
exit (1) ;
} ;
/* A couple of standard WAV files. Make sure Win32 plays these. */
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encode_file (argv [1], "pcmu8.wav" , SF_FORMAT_WAV | SF_FORMAT_PCM_U8) ;
encode_file (argv [1], "pcm16.wav" , SF_FORMAT_WAV | SF_FORMAT_PCM_16) ;
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encode_file (argv [1], "imaadpcm.wav", SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM) ;
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encode_file (argv [1], "msadpcm.wav", SF_FORMAT_WAV | SF_FORMAT_IMA_ADPCM) ;
encode_file (argv [1], "gsm610.wav" , SF_FORMAT_WAV | SF_FORMAT_GSM610) ;
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/* Soundforge W64. */
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encode_file (argv [1], "pcmu8.w64" , SF_FORMAT_W64 | SF_FORMAT_PCM_U8) ;
encode_file (argv [1], "pcm16.w64" , SF_FORMAT_W64 | SF_FORMAT_PCM_16) ;
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encode_file (argv [1], "imaadpcm.w64", SF_FORMAT_W64 | SF_FORMAT_MS_ADPCM) ;
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encode_file (argv [1], "msadpcm.w64", SF_FORMAT_W64 | SF_FORMAT_IMA_ADPCM) ;
encode_file (argv [1], "gsm610.w64" , SF_FORMAT_W64 | SF_FORMAT_GSM610) ;
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return 0 ;
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} /* main */
/*============================================================================================
** Helper functions and macros.
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*/
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#define PUT_DOTS(k) \
{ while (k--) \
putchar ('.') ; \
putchar (' ') ; \
}
/*========================================================================================
*/
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static void
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encode_file (const char *infilename, const char *outfilename, int filetype)
{ static float buffer [BUFFER_LEN] ;
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SNDFILE *infile, *outfile ;
SF_INFO sfinfo ;
int k, readcount ;
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printf (" %s -> %s ", infilename, outfilename) ;
fflush (stdout) ;
k = 16 - strlen (outfilename) ;
PUT_DOTS (k) ;
if (! (infile = sf_open (infilename, SFM_READ, &sfinfo)))
{ printf ("Error : could not open file : %s\n", infilename) ;
puts (sf_strerror (NULL)) ;
exit (1) ;
}
sfinfo.format = filetype ;
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if (! sf_format_check (&sfinfo))
{ sf_close (infile) ;
printf ("Invalid encoding\n") ;
return ;
} ;
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if (! (outfile = sf_open (outfilename, SFM_WRITE, &sfinfo)))
{ printf ("Error : could not open file : %s\n", outfilename) ;
puts (sf_strerror (NULL)) ;
exit (1) ;
} ;
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while ((readcount = sf_read_float (infile, buffer, BUFFER_LEN)) > 0)
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sf_write_float (outfile, buffer, readcount) ;
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sf_close (infile) ;
sf_close (outfile) ;
printf ("ok\n") ;
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return ;
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} /* encode_file */