examples/generate.c

/*
** Copyright (C) 2002-2011 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>

#define	BUFFER_LEN			4096

static void encode_file (const char *infilename, const char *outfilename, int filetype) ;

int
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. */
	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) ;
	encode_file (argv [1], "imaadpcm.wav", SF_FORMAT_WAV | SF_FORMAT_MS_ADPCM) ;
	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) ;

	/* Soundforge W64. */
	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) ;
	encode_file (argv [1], "imaadpcm.w64", SF_FORMAT_W64 | SF_FORMAT_MS_ADPCM) ;
	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) ;

	return 0 ;
} /* main */

/*============================================================================================
**	Helper functions and macros.
*/

#define PUT_DOTS(k)					\
			{	while (k--)			\
					putchar ('.') ;	\
				putchar (' ') ;		\
				}

/*========================================================================================
*/

static void
encode_file (const char *infilename, const char *outfilename, int filetype)
{	static float buffer [BUFFER_LEN] ;

	SNDFILE		*infile, *outfile ;
	SF_INFO		sfinfo ;
	int			k, readcount ;

	printf ("    %s -> %s ", infilename, outfilename) ;
	fflush (stdout) ;

	k = 16 - strlen (outfilename) ;
	PUT_DOTS (k) ;

	memset (&sfinfo, 0, sizeof (sfinfo)) ;

	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 ;

	if (! sf_format_check (&sfinfo))
	{	sf_close (infile) ;
		printf ("Invalid encoding\n") ;
		return ;
		} ;

	if (! (outfile = sf_open (outfilename, SFM_WRITE, &sfinfo)))
	{	printf ("Error : could not open file : %s\n", outfilename) ;
		puts (sf_strerror (NULL)) ;
		exit (1) ;
		} ;

	while ((readcount = (int) sf_read_float (infile, buffer, BUFFER_LEN)) > 0)
		sf_write_float (outfile, buffer, readcount) ;

	sf_close (infile) ;
	sf_close (outfile) ;

	printf ("ok\n") ;

	return ;
} /* encode_file */