interpretor/libsndfile-1.0.25/programs/sndfile-concat.c

   1 /*
   2 ** Copyright (C) 1999-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
   3 **
   4 ** All rights reserved.
   5 **
   6 ** Redistribution and use in source and binary forms, with or without
   7 ** modification, are permitted provided that the following conditions are
   8 ** met:
   9 **
  10 **     * Redistributions of source code must retain the above copyright
  11 **       notice, this list of conditions and the following disclaimer.
  12 **     * Redistributions in binary form must reproduce the above copyright
  13 **       notice, this list of conditions and the following disclaimer in
  14 **       the documentation and/or other materials provided with the
  15 **       distribution.
  16 **     * Neither the author nor the names of any contributors may be used
  17 **       to endorse or promote products derived from this software without
  18 **       specific prior written permission.
  19 **
  20 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22 ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23 ** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  24 ** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  25 ** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  26 ** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  27 ** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  28 ** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  29 ** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  30 ** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31 */
  32
  33 #include        <stdio.h>
  34 #include        <stdlib.h>
  35 #include        <string.h>
  36 #include        <ctype.h>
  37
  38 #include        <sndfile.h>
  39
  40 #include        "common.h"
  41
  42 #define         BUFFER_LEN      (1<<16)
  43
  44
  45 static void concat_data_fp (SNDFILE *wfile, SNDFILE *rofile, int channels) ;
  46 static void concat_data_int (SNDFILE *wfile, SNDFILE *rofile, int channels) ;
  47
  48 static void
  49 usage_exit (const char *progname)
  50 {
  51         printf ("\nUsage : %s <infile1> <infile2>  ... <outfile>\n\n", progname) ;
  52         puts (
  53                 "    Create a new output file <outfile> containing the concatenated\n"
  54                 "    audio data from froms <infile1> <infile2> ....\n"
  55                 "\n"
  56                 "    The joined file will be encoded in the same format as the data\n"
  57                 "    in infile1, with all the data in subsequent files automatically\n"
  58                 "    converted to the correct encoding.\n"
  59                 "\n"
  60                 "    The only restriction is that the two files must have the same\n"
  61                 "    number of channels.\n"
  62                 ) ;
  63
  64         exit (0) ;
  65 } /* usage_exit */
  66
  67 int
  68 main (int argc, char *argv [])
  69 {       const char      *progname, *outfilename ;
  70         SNDFILE         *outfile, **infiles ;
  71         SF_INFO         sfinfo_out, sfinfo_in ;
  72         void            (*func) (SNDFILE*, SNDFILE*, int) ;
  73         int                     k ;
  74
  75         progname = program_name (argv [0]) ;
  76
  77         if (argc < 4)
  78                 usage_exit (progname) ;
  79
  80         argv ++ ;
  81         argc -- ;
  82
  83         argc -- ;
  84         outfilename = argv [argc] ;
  85
  86         if ((infiles = calloc (argc, sizeof (SNDFILE*))) == NULL)
  87         {       printf ("\nError : Malloc failed.\n\n") ;
  88                 exit (1) ;
  89                 } ;
  90
  91         memset (&sfinfo_in, 0, sizeof (sfinfo_in)) ;
  92
  93         if ((infiles [0] = sf_open (argv [0], SFM_READ, &sfinfo_in)) == NULL)
  94         {       printf ("\nError : failed to open file '%s'.\n\n", argv [0]) ;
  95                 exit (1) ;
  96                 } ;
  97
  98         sfinfo_out = sfinfo_in ;
  99
 100         for (k = 1 ; k < argc ; k++)
 101         {       if ((infiles [k] = sf_open (argv [k], SFM_READ, &sfinfo_in)) == NULL)
 102                 {       printf ("\nError : failed to open file '%s'.\n\n", argv [k]) ;
 103                         exit (1) ;
 104                         } ;
 105
 106                 if (sfinfo_in.channels != sfinfo_out.channels)
 107                 {       printf ("\nError : File '%s' has %d channels (should have %d).\n\n", argv [k], sfinfo_in.channels, sfinfo_out.channels) ;
 108                         exit (1) ;
 109                         } ;
 110                 } ;
 111
 112         if ((outfile = sf_open (outfilename, SFM_WRITE, &sfinfo_out)) == NULL)
 113         {       printf ("\nError : Not able to open input file %s.\n", outfilename) ;
 114                 puts (sf_strerror (NULL)) ;
 115                 exit (1) ;
 116                 } ;
 117
 118         if ((sfinfo_out.format & SF_FORMAT_SUBMASK) == SF_FORMAT_DOUBLE ||
 119                         (sfinfo_out.format & SF_FORMAT_SUBMASK) == SF_FORMAT_FLOAT)
 120                 func = concat_data_fp ;
 121         else
 122                 func = concat_data_int ;
 123
 124         for (k = 0 ; k < argc ; k++)
 125         {       func (outfile, infiles [k], sfinfo_out.channels) ;
 126                 sf_close (infiles [k]) ;
 127                 } ;
 128
 129         sf_close (outfile) ;
 130
 131         return 0 ;
 132 } /* main */
 133
 134 static void
 135 concat_data_fp (SNDFILE *wfile, SNDFILE *rofile, int channels)
 136 {       static double   data [BUFFER_LEN] ;
 137         int             frames, readcount ;
 138
 139         frames = BUFFER_LEN / channels ;
 140         readcount = frames ;
 141
 142         sf_seek (wfile, 0, SEEK_END) ;
 143
 144         while (readcount > 0)
 145         {       readcount = sf_readf_double (rofile, data, frames) ;
 146                 sf_writef_double (wfile, data, readcount) ;
 147                 } ;
 148
 149         return ;
 150 } /* concat_data_fp */
 151
 152 static void
 153 concat_data_int (SNDFILE *wfile, SNDFILE *rofile, int channels)
 154 {       static int      data [BUFFER_LEN] ;
 155         int             frames, readcount ;
 156
 157         frames = BUFFER_LEN / channels ;
 158         readcount = frames ;
 159
 160         sf_seek (wfile, 0, SEEK_END) ;
 161
 162         while (readcount > 0)
 163         {       readcount = sf_readf_int (rofile, data, frames) ;
 164                 sf_writef_int (wfile, data, readcount) ;
 165                 } ;
 166
 167         return ;
 168 } /* concat_data_int */
 169