+++ /dev/null
-/*
-** Copyright (C) 2010-2011 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 <inttypes.h>
-#include <ctype.h>
-#include <math.h>
-#include <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-
-#include <sndfile.h>
-
-#include "common.h"
-
-#define BUFFER_LEN (1 << 16)
-
-#define NOT(x) (! (x))
-
-
-static void usage_exit (const char *progname) ;
-static void salvage_file (const char * broken_wav, const char * fixed_w64) ;
-
-int
-main (int argc, char *argv [])
-{
- if (argc != 3)
- usage_exit (program_name (argv [0])) ;
-
- salvage_file (argv [1], argv [2]) ;
-
- return 0 ;
-} /* main */
-
-/*==============================================================================
-*/
-
-static void lseek_or_die (int fd, off_t offset, int whence) ;
-static sf_count_t get_file_length (int fd, const char * name) ;
-static sf_count_t find_data_offset (int fd, int format) ;
-static void copy_data (int fd, SNDFILE * sndfile, int readsize) ;
-
-
-static void
-usage_exit (const char *progname)
-{ printf ("Usage :\n\n %s <broken wav file> <fixed w64 file>\n\n", progname) ;
- puts ("Salvages the audio data from WAV files which are more than 4G in length.\n") ;
- printf ("Using %s.\n\n", sf_version_string ()) ;
- exit (0) ;
-} /* usage_exit */
-
-static void
-salvage_file (const char * broken_wav, const char * fixed_w64)
-{ SNDFILE * sndfile ;
- SF_INFO sfinfo ;
- sf_count_t broken_len, data_offset ;
- int fd, read_size ;
-
- if (strcmp (broken_wav, fixed_w64) == 0)
- { printf ("Error : Input and output files must be different.\n\n") ;
- exit (1) ;
- } ;
-
- if ((fd = open (broken_wav, O_RDONLY)) < 0)
- { printf ("Error : Not able to open file '%s' : %s\n", broken_wav, strerror (errno)) ;
- exit (1) ;
- } ;
-
- broken_len = get_file_length (fd, broken_wav) ;
- if (broken_len <= 0xffffffff)
- printf ("File is not greater than 4Gig but salvaging anyway.\n") ;
-
- /* Grab the format info from the broken file. */
- memset (&sfinfo, 0, sizeof (sfinfo)) ;
- if ((sndfile = sf_open (broken_wav, SFM_READ, &sfinfo)) == NULL)
- { printf ("sf_open ('%s') failed : %s\n", broken_wav, sf_strerror (NULL)) ;
- exit (1) ;
- } ;
- sf_close (sndfile) ;
-
- data_offset = find_data_offset (fd, sfinfo.format & SF_FORMAT_TYPEMASK) ;
-
- printf ("Offset to audio data : %" PRId64 "\n", data_offset) ;
-
- switch (sfinfo.format & SF_FORMAT_TYPEMASK)
- { case SF_FORMAT_WAV :
- case SF_FORMAT_WAVEX :
- sfinfo.format = SF_FORMAT_W64 | (sfinfo.format & SF_FORMAT_SUBMASK) ;
- break ;
-
- default :
- printf ("Don't currently support this file type.\n") ;
- exit (1) ;
- } ;
-
- switch (sfinfo.format & SF_FORMAT_SUBMASK)
- { case SF_FORMAT_PCM_U8 :
- case SF_FORMAT_PCM_S8 :
- read_size = 1 ;
- break ;
-
- case SF_FORMAT_PCM_16 :
- read_size = 2 ;
- break ;
-
- case SF_FORMAT_PCM_24 :
- read_size = 3 ;
- break ;
-
- case SF_FORMAT_PCM_32 :
- case SF_FORMAT_FLOAT :
- read_size = 4 ;
- break ;
-
- case SF_FORMAT_DOUBLE :
- read_size = 8 ;
- break ;
-
- default :
- printf ("Sorry, don't currently support this file encoding type.\n") ;
- exit (1) ;
- } ;
-
- read_size *= sfinfo.channels ;
-
- if ((sndfile = sf_open (fixed_w64, SFM_WRITE, &sfinfo)) == NULL)
- { printf ("sf_open ('%s') failed : %s\n", broken_wav, sf_strerror (NULL)) ;
- exit (1) ;
- } ;
-
- lseek_or_die (fd, data_offset, SEEK_SET) ;
-
- copy_data (fd, sndfile, read_size) ;
-
- sf_close (sndfile) ;
-
- puts ("Done!") ;
-} /* salvage_file */
-
-/*------------------------------------------------------------------------------
-*/
-
-static void
-lseek_or_die (int fd, off_t offset, int whence)
-{
- if (lseek (fd, offset, whence) < 0)
- { printf ("lseek failed : %s\n", strerror (errno)) ;
- exit (1) ;
- } ;
-
- return ;
-} /* lseek_or_die */
-
-
-static sf_count_t
-get_file_length (int fd, const char * name)
-{ struct stat sbuf ;
-
- if (sizeof (sbuf.st_size) != 8)
- { puts ("Error : sizeof (sbuf.st_size) != 8. Was program compiled with\n"
- " 64 bit file offsets?\n") ;
- exit (1) ;
- } ;
-
- if (fstat (fd, &sbuf) != 0)
- { printf ("Error : fstat ('%s') failed : %s\n", name, strerror (errno)) ;
- exit (1) ;
- } ;
-
- return sbuf.st_size ;
-} /* get_file_length */
-
-static sf_count_t
-find_data_offset (int fd, int format)
-{ char buffer [8192], *cptr ;
- const char * target = "XXXX" ;
- sf_count_t offset = -1, extra ;
- int rlen, slen ;
-
- switch (format)
- { case SF_FORMAT_WAV :
- case SF_FORMAT_WAVEX :
- target = "data" ;
- extra = 8 ;
- break ;
-
- case SF_FORMAT_AIFF :
- target = "SSND" ;
- extra = 16 ;
- break ;
-
- default :
- puts ("Error : Sorry, don't handle this input file format.\n") ;
- exit (1) ;
- } ;
-
- slen = strlen (target) ;
-
- lseek_or_die (fd, 0, SEEK_SET) ;
-
- printf ("Searching for '%s' maker.\n", target) ;
-
- if ((rlen = read (fd, buffer, sizeof (buffer))) < 0)
- { printf ("Error : failed read : %s\n", strerror (errno)) ;
- exit (1) ;
- } ;
-
- cptr = memchr (buffer, target [0], rlen - slen) ;
- if (cptr && memcmp (cptr, target, slen) == 0)
- offset = cptr - buffer ;
- else
- { printf ("Error : Could not find data offset.\n") ;
- exit (1) ;
- } ;
-
- return offset + extra ;
-} /* find_data_offset */
-
-static void
-copy_data (int fd, SNDFILE * sndfile, int readsize)
-{ static char * buffer ;
- sf_count_t readlen, count ;
- int bufferlen, done = 0 ;
-
- bufferlen = readsize * 1024 ;
- buffer = malloc (bufferlen) ;
-
- while (NOT (done) && (readlen = read (fd, buffer, bufferlen)) >= 0)
- { if (readlen < bufferlen)
- { readlen -= readlen % readsize ;
- done = 1 ;
- } ;
-
- if ((count = sf_write_raw (sndfile, buffer, readlen)) != readlen)
- { printf ("Error : sf_write_raw returned %" PRId64 " : %s\n", count, sf_strerror (sndfile)) ;
- return ;
- } ;
- } ;
-
- free (buffer) ;
-
- return ;
-} /* copy_data */
-
projects / Faustine.git / blobdiff