cannam@125: /*
cannam@125: ** Copyright (C) 2008-2012 Erik de Castro Lopo <erikd@mega-nerd.com>
cannam@125: **
cannam@125: ** All rights reserved.
cannam@125: **
cannam@125: ** Redistribution and use in source and binary forms, with or without
cannam@125: ** modification, are permitted provided that the following conditions are
cannam@125: ** met:
cannam@125: **
cannam@125: **     * Redistributions of source code must retain the above copyright
cannam@125: **       notice, this list of conditions and the following disclaimer.
cannam@125: **     * Redistributions in binary form must reproduce the above copyright
cannam@125: **       notice, this list of conditions and the following disclaimer in
cannam@125: **       the documentation and/or other materials provided with the
cannam@125: **       distribution.
cannam@125: **     * Neither the author nor the names of any contributors may be used
cannam@125: **       to endorse or promote products derived from this software without
cannam@125: **       specific prior written permission.
cannam@125: **
cannam@125: ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
cannam@125: ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
cannam@125: ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
cannam@125: ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
cannam@125: ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
cannam@125: ** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
cannam@125: ** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
cannam@125: ** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
cannam@125: ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
cannam@125: ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
cannam@125: ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cannam@125: */
cannam@125: 
cannam@125: #include <stdio.h>
cannam@125: #include <stdlib.h>
cannam@125: #include <string.h>
cannam@125: #include <ctype.h>
cannam@125: 
cannam@125: #include <sndfile.h>
cannam@125: 
cannam@125: #define	BLOCK_SIZE 512
cannam@125: 
cannam@125: static void
cannam@125: print_usage (char *progname)
cannam@125: {	printf ("\nUsage : %s <input file> <output file>\n", progname) ;
cannam@125: 	puts ("\n"
cannam@125: 		"    Where the output file will contain a line for each frame\n"
cannam@125: 		"    and a column for each channel.\n"
cannam@125: 		) ;
cannam@125: 
cannam@125: } /* print_usage */
cannam@125: 
cannam@125: static void
cannam@125: convert_to_text (SNDFILE * infile, FILE * outfile, int channels)
cannam@125: {	float buf [channels * BLOCK_SIZE] ;
cannam@125: 	int k, m, readcount ;
cannam@125: 
cannam@125: 	while ((readcount = sf_readf_float (infile, buf, BLOCK_SIZE)) > 0)
cannam@125: 	{	for (k = 0 ; k < readcount ; k++)
cannam@125: 		{	for (m = 0 ; m < channels ; m++)
cannam@125: 				fprintf (outfile, " % 12.10f", buf [k * channels + m]) ;
cannam@125: 			fprintf (outfile, "\n") ;
cannam@125: 			} ;
cannam@125: 		} ;
cannam@125: 
cannam@125: 	return ;
cannam@125: } /* convert_to_text */
cannam@125: 
cannam@125: int
cannam@125: main (int argc, char * argv [])
cannam@125: {	char 		*progname, *infilename, *outfilename ;
cannam@125: 	SNDFILE		*infile = NULL ;
cannam@125: 	FILE		*outfile = NULL ;
cannam@125: 	SF_INFO		sfinfo ;
cannam@125: 
cannam@125: 	progname = strrchr (argv [0], '/') ;
cannam@125: 	progname = progname ? progname + 1 : argv [0] ;
cannam@125: 
cannam@125: 	if (argc != 3)
cannam@125: 	{	print_usage (progname) ;
cannam@125: 		return 1 ;
cannam@125: 		} ;
cannam@125: 
cannam@125: 	infilename = argv [1] ;
cannam@125: 	outfilename = argv [2] ;
cannam@125: 
cannam@125: 	if (strcmp (infilename, outfilename) == 0)
cannam@125: 	{	printf ("Error : Input and output filenames are the same.\n\n") ;
cannam@125: 		print_usage (progname) ;
cannam@125: 		return 1 ;
cannam@125: 		} ;
cannam@125: 
cannam@125: 	if (infilename [0] == '-')
cannam@125: 	{	printf ("Error : Input filename (%s) looks like an option.\n\n", infilename) ;
cannam@125: 		print_usage (progname) ;
cannam@125: 		return 1 ;
cannam@125: 		} ;
cannam@125: 
cannam@125: 	if (outfilename [0] == '-')
cannam@125: 	{	printf ("Error : Output filename (%s) looks like an option.\n\n", outfilename) ;
cannam@125: 		print_usage (progname) ;
cannam@125: 		return 1 ;
cannam@125: 		} ;
cannam@125: 
cannam@125: 	memset (&sfinfo, 0, sizeof (sfinfo)) ;
cannam@125: 
cannam@125: 	if ((infile = sf_open (infilename, SFM_READ, &sfinfo)) == NULL)
cannam@125: 	{	printf ("Not able to open input file %s.\n", infilename) ;
cannam@125: 		puts (sf_strerror (NULL)) ;
cannam@125: 		return 1 ;
cannam@125: 		} ;
cannam@125: 
cannam@125: 	/* Open the output file. */
cannam@125: 	if ((outfile = fopen (outfilename, "w")) == NULL)
cannam@125: 	{	printf ("Not able to open output file %s : %s\n", outfilename, sf_strerror (NULL)) ;
cannam@125: 		return 1 ;
cannam@125: 		} ;
cannam@125: 
cannam@125: 	fprintf (outfile, "# Converted from file %s.\n", infilename) ;
cannam@125: 	fprintf (outfile, "# Channels %d, Sample rate %d\n", sfinfo.channels, sfinfo.samplerate) ;
cannam@125: 
cannam@125: 	convert_to_text (infile, outfile, sfinfo.channels) ;
cannam@125: 
cannam@125: 	sf_close (infile) ;
cannam@125: 	fclose (outfile) ;
cannam@125: 
cannam@125: 	return 0 ;
cannam@125: } /* main */
cannam@125: