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In sndfile-convert, add ability to transcode meta data.

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This commit is contained in:
Erik de Castro Lopo 2004-04-26 03:32:42 +00:00
parent d3dcd4b488
commit 312ba604bd
2 changed files with 40 additions and 21 deletions
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6
ChangeLog
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@ -2,11 +2,15 @@
* src/strings.c
If adding an SF_STR_SOFTWARE string, only append libsndfile-X.Y.Z if the
string does not already have libsndfile in the string.
string does not already have libsndfile in the string. Thanks to Conrad
Parker.
* tests/string_test.c
Add test to verify the above.
* examples/sndfile-convert.c
Add ability to transcode meta data as well (Conrad Parker).
2004-04-25 Erik de Castro Lopo <erikd AT mega-nerd DOT com>
* doc/command.html

55
examples/sndfile-convert.c
View File

@ -17,14 +17,14 @@
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <sndfile.h>
#include <sndfile.h>
#define BUFFER_LEN 1024
#define BUFFER_LEN 1024
typedef struct
@ -34,10 +34,11 @@ typedef struct
typedef struct
{ const char *ext ;
int len ;
int format ;
int len ;
int format ;
} OUTPUT_FORMAT_MAP ;
static void copy_metadata (SNDFILE *outfile, SNDFILE *infile) ;
static void copy_data_fp (SNDFILE *outfile, SNDFILE *infile, int channels) ;
static void copy_data_int (SNDFILE *outfile, SNDFILE *infile, int channels) ;
@ -127,16 +128,16 @@ print_usage (char *progname)
for (k = 0 ; k < (int) (sizeof (format_map) / sizeof (format_map [0])) ; k++)
{ info.format = format_map [k].format ;
sf_command (NULL, SFC_GET_FORMAT_INFO, &info, sizeof (info)) ;
printf (" %-10s : %s\n", format_map [k].ext, info.name) ;
printf (" %-10s : %s\n", format_map [k].ext, info.name) ;
} ;
puts ("") ;
} /* print_usage */
int
main (int argc, char *argv[])
main (int argc, char * argv [])
{ char *progname, *infilename, *outfilename ;
SNDFILE *infile, *outfile ;
SNDFILE *infile = NULL, *outfile = NULL ;
SF_INFO sfinfo ;
int k, outfilemajor, outfileminor = 0, infileminor ;
@ -145,7 +146,7 @@ main (int argc, char *argv[])
if (argc < 3 || argc > 5)
{ print_usage (progname) ;
return 1 ;
return 1 ;
} ;
infilename = argv [argc-2] ;
@ -154,19 +155,19 @@ main (int argc, char *argv[])
if (! strcmp (infilename, outfilename))
{ printf ("Error : Input and output filenames are the same.\n\n") ;
print_usage (progname) ;
return 1 ;
return 1 ;
} ;
if (infilename [0] == '-')
{ printf ("Error : Input filename (%s) looks like an option.\n\n", infilename) ;
print_usage (progname) ;
return 1 ;
return 1 ;
} ;
if (outfilename [0] == '-')
{ printf ("Error : Output filename (%s) looks like an option.\n\n", outfilename) ;
print_usage (progname) ;
return 1 ;
return 1 ;
} ;
for (k = 1 ; k < argc - 2 ; k++)
@ -234,9 +235,9 @@ main (int argc, char *argv[])
if (! (infile = sf_open (infilename, SFM_READ, &sfinfo)))
{ printf ("Not able to open input file %s.\n", infilename) ;
puts (sf_strerror (NULL)) ;
return 1 ;
return 1 ;
} ;
infileminor = sfinfo.format & SF_FORMAT_SUBMASK ;
if (! (sfinfo.format = guess_output_file_type (outfilename, sfinfo.format)))
@ -268,10 +269,13 @@ main (int argc, char *argv[])
return 1 ;
} ;
/* Copy the metadata */
copy_metadata (outfile, infile) ;
/* Open the output file. */
if ((outfile = sf_open (outfilename, SFM_WRITE, &sfinfo)) == NULL)
{ printf ("Not able to open output file %s : %s\n", outfilename, sf_strerror (NULL)) ;
return 1 ;
return 1 ;
} ;
if ((outfileminor == SF_FORMAT_DOUBLE) || (outfileminor == SF_FORMAT_FLOAT) ||
@ -286,6 +290,17 @@ main (int argc, char *argv[])
return 0 ;
} /* main */
static void
copy_metadata (SNDFILE *outfile, SNDFILE *infile)
{ const char *str ;
int k, err = 0 ;
for (k = 1 ; err == 0 ; k++)
{ str = sf_get_string (infile, k) ;
err = sf_set_string (outfile, k, (str != NULL) ? str : "") ;
}
} /* copy_metadata */
static void
copy_data_fp (SNDFILE *outfile, SNDFILE *infile, int channels)
{ static double data [BUFFER_LEN], max ;
@ -295,7 +310,7 @@ copy_data_fp (SNDFILE *outfile, SNDFILE *infile, int channels)
readcount = frames ;
sf_command (infile, SFC_CALC_SIGNAL_MAX, &max, sizeof (max)) ;
if (max < 1.0)
{ while (readcount > 0)
{ readcount = sf_readf_double (infile, data, frames) ;
@ -332,7 +347,7 @@ copy_data_int (SNDFILE *outfile, SNDFILE *infile, int channels)
/*
** Do not edit or modify anything in this comment block.
** The arch-tag line is a file identity tag for the GNU Arch
** The arch-tag line is a file identity tag for the GNU Arch
** revision control system.
**
** arch-tag: 259682b3-2887-48a6-b5bb-3cde00521ba3