/*
Copyright (C) 2008 Commonwealth Scientific and Industrial Research
Organisation (CSIRO) Australia
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 name of CSIRO Australia nor the names of its
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 ORGANISATION 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 <limits.h> /* LONG_MAX */
#include <math.h>
#include <ctype.h>
#include <getopt.h>
#include <errno.h>
#include <oggz/oggz.h>
#include "oggz_tools.h"
#include "mimetypes.h"
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#else
# define PRId64 "I64d"
#endif
#define READ_BLOCKSIZE 16384
static int show_all = 0;
static int show_as_mime = 0;
static int show_one_per_line = 0;
static int displayed_once = 0;
static int many_files = 0;
/* Assumes UNKNOWN is last - fair assumption I think */
static int codecs_count[OGGZ_CONTENT_UNKNOWN+1] = {0};
static void
usage (const char * progname)
{
printf ("Usage: %s [options] filename ...\n", progname);
printf ("List codecs in one or more Ogg files and their bitstreams. The default\n");
printf ("comma-separated output is designed for use in an HTML5 <video> codecs\n");
printf ("attribute.\n");
printf ("\nDisplay options\n");
printf (" -a, --all Display codec names multiple times if present in\n");
printf (" multiple tracks.\n");
printf (" -m, --mime Display MIME types rather than codec names\n");
printf (" -1, --one-per-line Display one entry per line\n");
printf ("\nMiscellaneous options\n");
printf (" -h, --help Display this help and exit\n");
printf (" -v, --version Output version information and exit\n");
printf ("\n");
printf ("Please report bugs to <ogg-dev@xiph.org>\n");
}
#define SEP "------------------------------------------------------------"
typedef struct _OI_Info OI_Info;
/* Let's get functional */
typedef void (*OI_TrackFunc) (OI_Info * info, long serialno);
struct _OI_Info {
OGGZ * oggz;
OggzTable * tracks;
};
static void
oggz_info_apply (OI_TrackFunc func, OI_Info * info)
{
long serialno;
int n, i;
n = oggz_table_size (info->tracks);
for (i = 0; i < n; i++) {
oggz_table_nth (info->tracks, i, &serialno);
func (info, serialno);
}
}
static void
print_codec_name (OI_Info * info, long serialno)
{
OggzStreamContent content = oggz_stream_get_content(info->oggz, serialno);
if (!codecs_count[content]++ || show_all) {
if (displayed_once && !show_one_per_line) {
printf(", ");
}
if (show_as_mime) {
const char *mime_type = NULL;
if (content < OGGZ_CONTENT_UNKNOWN)
mime_type = mime_type_names[content];
if (!mime_type) mime_type = "application/octet-stream";
printf("%s%s", mime_type, show_one_per_line?"\n":"");
}
else {
const char *codec_name = oggz_content_type (content), *ptr;
if (!codec_name) codec_name = "unknown";
for (ptr = codec_name; *ptr; ++ptr) putchar(tolower(*ptr));
if (show_one_per_line) putchar('\n');
}
displayed_once = 1;
}
}
static void
ensure_newline (void)
{
if (many_files) {
putchar ('\n');
} else if (!show_one_per_line) {
/* For single file, comma-separated output, don't put the
* terminating newline on stdout, so that the program output
* can be used in an HTML5 <video> codecs attribute.
*/
fflush (stdout);
fputc ('\n', stderr);
}
}
static int
read_page_pass1 (OGGZ * oggz, const ogg_page * og, long serialno, void * user_data)
{
OI_Info * info = (OI_Info *)user_data;
oggz_table_insert (info->tracks, serialno, &read_page_pass1); /* NULL makes it barf, needs anything */
if (ogg_page_bos ((ogg_page *)og)) {
return 0;
}
else {
return OGGZ_STOP_OK;
}
}
static int
oi_pass1 (OGGZ * oggz, OI_Info * info)
{
long n, serialno;
oggz_seek (oggz, 0, SEEK_SET);
oggz_set_read_page (oggz, -1, read_page_pass1, info);
while ((n = oggz_read (oggz, READ_BLOCKSIZE)) > 0);
return 0;
}
int
main (int argc, char ** argv)
{
int show_version = 0;
int show_help = 0;
char * progname;
int i;
char * infilename;
OGGZ * oggz;
OI_Info info;
char * optstring = "hvam1";
#ifdef HAVE_GETOPT_LONG
static struct option long_options[] = {
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'v'},
{"all", no_argument, 0, 'a'},
{"mime", no_argument, 0, 'm'},
{"one-line", no_argument, 0, '1'},
{NULL,0,0,0}
};
#endif
progname = argv[0];
if (argc < 2) {
usage (progname);
return (1);
}
if (!strncmp (argv[1], "-?", 2)) {
#ifdef HAVE_GETOPT_LONG
ot_print_options (long_options, optstring);
#else
ot_print_short_options (optstring);
#endif
exit (0);
}
while (1) {
#ifdef HAVE_GETOPT_LONG
i = getopt_long (argc, argv, optstring, long_options, NULL);
#else
i = getopt (argc, argv, optstring);
#endif
if (i == -1) break;
if (i == ':') {
usage (progname);
goto exit_err;
}
switch (i) {
case 'h': /* help */
show_help = 1;
break;
case 'v': /* version */
show_version = 1;
break;
case 'a':
show_all = 1;
break;
case 'm':
show_as_mime = 1;
break;
case '1':
show_one_per_line = 1;
break;
default:
break;
}
}
if (show_version) {
printf ("%s version " VERSION "\n", progname);
}
if (show_help) {
usage (progname);
}
if (show_version || show_help) {
goto exit_ok;
}
if (optind >= argc) {
usage (progname);
goto exit_err;
}
if (argc > optind+1) {
many_files = 1;
}
while (optind < argc) {
/* Reset state for new file */
memset (codecs_count, 0, sizeof(codecs_count));
displayed_once = 0;
infilename = argv[optind++];
if ((oggz = oggz_open (infilename, OGGZ_READ|OGGZ_AUTO)) == NULL) {
fprintf (stderr, "%s: unable to open file %s\n", progname, infilename);
return (1);
}
if (many_files)
printf ("%s: ", infilename);
info.oggz = oggz;
info.tracks = oggz_table_new ();
oi_pass1 (oggz, &info);
oggz_info_apply (print_codec_name, &info);
oggz_table_delete (info.tracks);
oggz_close (oggz);
ensure_newline ();
}
exit_ok:
exit (0);
exit_err:
exit (1);
}