Add new program sndfile-concat with man page.

ChangeLog

@@ -9,6 +9,9 @@
     * configure.ac
     Remove detection of JACK Audio Connect Kit.
 
+    * programs/sndfile-concat.c man/sndfile-concat.1
+    Add new program with man page.
+
 2009-12-08  Erik de Castro Lopo  <erikd AT mega-nerd DOT com>
 
     * tests/error_test.c

man/sndfile-concat.1

@@ -0,0 +1,16 @@
+.TH SNDFILE-CONCAT 1 "December 9, 2009"
+.SH NAME
+sndfile-concat \- concatenates two or more audio files
+.SH SYNOPSIS
+.B sndfile-concat
+.RI "infile1 infile2 .... outfile"
+.SH DESCRIPTION
+sndfile-concat generates a new output file by concatenating two or more input
+files. The format of the output file is the same as the format of the input
+file.
+
+sndfile-concat does its work using libsndfile
+(http://www.mega-nerd.com/libsndfile/).
+.SH AUTHOR
+This manual page was written by Erik de Castro Lopo <erikd@mega-nerd.com>.
+

programs/sndfile-concat.c

@@ -0,0 +1,171 @@
+/*
+** Copyright (C) 1999-2009 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	<ctype.h>
+
+#include	<sndfile.h>
+
+#define	 BUFFER_LEN      (1<<16)
+
+
+static void concat_data_fp (SNDFILE *wfile, SNDFILE *rofile, int channels) ;
+static void concat_data_int (SNDFILE *wfile, SNDFILE *rofile, int channels) ;
+
+static void
+usage_exit (const char *argv0)
+{	const char *progname ;
+
+	progname = strrchr (argv0, '/') ;
+	progname = progname ? progname + 1 : argv0 ;
+
+	printf ("\nUsage : %s <infile1> <infile2>  ... <outfile>\n\n", progname) ;
+	puts (
+		"    Create a new output file <outfile> containing the concatenated\n"
+		"    audio data from froms <infile1> <infile2> ....\n"
+		"\n"
+		"    The joined file will be encoded in the same format as the data\n"
+		"    in infile1, with all the data in subsequent files automatically\n"
+		"    converted to the correct encoding.\n"
+		"\n"
+		"    The only restriction is that the two files must have the same\n"
+		"    number of channels.\n"
+		) ;
+
+	exit (0) ;
+} /* usage_exit */
+
+int
+main (int argc, char *argv [])
+{	const char  *argv0, *outfilename ;
+	SNDFILE	 	*outfile, **infiles ;
+	SF_INFO	 	sfinfo_out, sfinfo_in ;
+	void 		(*func) (SNDFILE*, SNDFILE*, int) ;
+	int			k ;
+
+	argv0 = argv [0] ;
+
+	if (argc < 4)
+		usage_exit (argv0) ;
+
+	argv ++ ;
+	argc -- ;
+
+	argc -- ;
+	outfilename = argv [argc] ;
+
+	if ((infiles = calloc (argc, sizeof (SNDFILE*))) == NULL)
+	{	printf ("\nError : Malloc failed.\n\n") ;
+		exit (1) ;
+		} ;
+
+	memset (&sfinfo_in, 0, sizeof (sfinfo_in)) ;
+
+	if ((infiles [0] = sf_open (argv [0], SFM_READ, &sfinfo_in)) == NULL)
+	{	printf ("\nError : failed to open file '%s'.\n\n", argv [0]) ;
+		exit (1) ;
+		} ;
+
+	sfinfo_out = sfinfo_in ;
+	
+	for (k = 1 ; k < argc ; k++)
+	{	if ((infiles [k] = sf_open (argv [k], SFM_READ, &sfinfo_in)) == NULL)
+		{	printf ("\nError : failed to open file '%s'.\n\n", argv [k]) ;
+			exit (1) ;
+			} ;
+
+		if (sfinfo_in.channels != sfinfo_out.channels)
+		{	printf ("\nError : File '%s' has %d channels (should have %d).\n\n", argv [k], sfinfo_in.channels, sfinfo_out.channels) ;
+			exit (1) ;
+			} ;
+		} ;
+
+	if ((outfile = sf_open (outfilename, SFM_WRITE, &sfinfo_out)) == NULL)
+	{	printf ("\nError : Not able to open input file %s.\n", outfilename) ;
+		puts (sf_strerror (NULL)) ;
+		exit (1) ;
+		} ;
+
+	if ((sfinfo_out.format & SF_FORMAT_SUBMASK) == SF_FORMAT_DOUBLE || 
+			(sfinfo_out.format & SF_FORMAT_SUBMASK) == SF_FORMAT_FLOAT)
+		func = concat_data_fp ;
+	else
+		func = concat_data_int ;
+
+	for (k = 0 ; k < argc ; k++)
+	{	func (outfile, infiles [k], sfinfo_out.channels) ;
+		sf_close (infiles [k]) ;
+		} ;
+
+	sf_close (outfile) ;
+
+	return 0 ;
+} /* main */
+
+static void
+concat_data_fp (SNDFILE *wfile, SNDFILE *rofile, int channels)
+{	static double	data [BUFFER_LEN] ;
+	int		frames, readcount ;
+
+	frames = BUFFER_LEN / channels ;
+	readcount = frames ;
+	
+	sf_seek (wfile, 0, SEEK_END) ;
+
+	while (readcount > 0)
+	{	readcount = sf_readf_double (rofile, data, frames) ;
+		sf_writef_double (wfile, data, readcount) ;
+		} ;
+
+	return ;
+} /* concat_data_fp */
+
+static void
+concat_data_int (SNDFILE *wfile, SNDFILE *rofile, int channels)
+{	static int	data [BUFFER_LEN] ;
+	int		frames, readcount ;
+
+	frames = BUFFER_LEN / channels ;
+	readcount = frames ;
+
+	sf_seek (wfile, 0, SEEK_END) ;
+
+	while (readcount > 0)
+	{	readcount = sf_readf_int (rofile, data, frames) ;
+		sf_writef_int (wfile, data, readcount) ;
+		} ;
+
+	return ;
+} /* concat_data_int */
+