libdvbv5: dvb-format-convert.c

libdvbv5 1.32.0 Library to work with Digital TV devices on Linux

dvb-format-convert.c
/*
* Copyright (c) 2011-2012 - Mauro Carvalho Chehab
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation version 2
* of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
*/
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <errno.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/time.h>
#include <argp.h>
#ifdef ENABLE_NLS
# define _(string) gettext(string)
# include "gettext.h"
# include <locale.h>
# include <langinfo.h>
# include <iconv.h>
#else
# define _(string) string
#endif
# define N_(string) string
#include "libdvbv5/dvb-file.h"
#include "libdvbv5/dvb-demux.h"
#include "libdvbv5/dvb-scan.h"
#define PROGRAM_NAME "dvb-format-convert"
struct arguments {
char *input_file, *output_file;
enum dvb_file_formats input_format, output_format;
int delsys;
};
static const struct argp_option options[] = {
{"input-format", 'I', N_("format"), 0, N_("Valid input formats: ZAP, CHANNEL, DVBV5"), 0},
{"output-format", 'O', N_("format"), 0, N_("Valid output formats: VDR, ZAP, CHANNEL, DVBV5"), 0},
{"delsys", 's', N_("system"), 0, N_("Delivery system type. Needed if input or output format is ZAP"), 0},
{"help", '?', 0, 0, N_("Give this help list"), -1},
{"usage", -3, 0, 0, N_("Give a short usage message")},
{"version", 'V', 0, 0, N_("Print program version"), -1},
{ 0, 0, 0, 0, 0, 0 }
};
const char *argp_program_version = PROGRAM_NAME " version " V4L_UTILS_VERSION;
const char *argp_program_bug_address = "Mauro Carvalho Chehab <mchehab@kernel.org>";
static error_t parse_opt(int k, char *optarg, struct argp_state *state)
{
struct arguments *args = state->input;
switch (k) {
case 'I':
args->input_format = dvb_parse_format(optarg);
break;
case 'O':
args->output_format = dvb_parse_format(optarg);
break;
case 's':
args->delsys = dvb_parse_delsys(optarg);
break;
case '?':
argp_state_help(state, state->out_stream,
ARGP_HELP_SHORT_USAGE | ARGP_HELP_LONG
| ARGP_HELP_DOC);
fprintf(state->out_stream, _("\nReport bugs to %s.\n"), argp_program_bug_address);
exit(0);
case 'V':
fprintf (state->out_stream, "%s\n", argp_program_version);
exit(0);
case -3:
argp_state_help(state, state->out_stream, ARGP_HELP_USAGE);
exit(0);
default:
return ARGP_ERR_UNKNOWN;
};
return 0;
}
static int convert_file(struct arguments *args)
{
struct dvb_file *dvb_file = NULL;
int ret;
printf(_("Reading file %s\n"), args->input_file);
dvb_file = dvb_read_file_format(args->input_file, args->delsys,
args->input_format);
if (!dvb_file) {
fprintf(stderr, _("Error reading file %s\n"), args->input_file);
return -1;
}
printf(_("Writing file %s\n"), args->output_file);
ret = dvb_write_file_format(args->output_file, dvb_file,
args->delsys, args->output_format);
dvb_file_free(dvb_file);
return ret;
}
int main(int argc, char **argv)
{
struct arguments args = {};
int idx = -1, missing = 0;
const struct argp argp = {
.options = options,
.parser = parse_opt,
.doc = N_("scan DVB services using the channel file"),
.args_doc = N_("<input file> <output file>"),
};
#ifdef ENABLE_NLS
setlocale (LC_ALL, "");
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
#endif
memset(&args, 0, sizeof(args));
argp_parse(&argp, argc, argv, ARGP_NO_HELP | ARGP_NO_EXIT, &idx, &args);
if (idx + 1 < argc) {
args.input_file = argv[idx];
args.output_file = argv[idx + 1];
}
if (args.input_format == FILE_UNKNOWN) {
fprintf(stderr, _("ERROR: Please specify a valid input format\n"));
missing = 1;
} else if (!args.input_file) {
fprintf(stderr, _("ERROR: Please specify a valid input file\n"));
missing = 1;
} else if (args.output_format == FILE_UNKNOWN) {
fprintf(stderr, _("ERROR: Please specify a valid output format\n"));
missing = 1;
} else if (!args.output_file) {
fprintf(stderr, _("ERROR: Please specify a valid output file\n"));
missing = 1;
} else if (((args.input_format == FILE_ZAP) ||
(args.output_format == FILE_ZAP)) &&
(args.delsys <= 0 || args.delsys == SYS_ISDBS)) {
fprintf(stderr, _("ERROR: Please specify a valid delivery system for ZAP format\n"));
missing = 1;
}
if (missing) {
argp_help(&argp, stderr, ARGP_HELP_STD_HELP, PROGRAM_NAME);
return -1;
}
return convert_file(&args);
}
dvb-demux.h
Provides interfaces to deal with DVB demux.
dvb-file.h
Provides interfaces to deal with DVB channel and program files.
FILE_ZAP
@ FILE_ZAP
File is at the dvb-apps "dvbzap" format.
Definition dvb-file.h:234
FILE_UNKNOWN
@ FILE_UNKNOWN
File format is unknown.
Definition dvb-file.h:233
dvb-scan.h
Provides interfaces to scan programs inside MPEG-TS digital TV streams.
dvb_file_formats
dvb_file_formats
Known file formats.
Definition dvb-file.h:232
dvb_read_file_format
struct dvb_file * dvb_read_file_format(const char *fname, uint32_t delsys, enum dvb_file_formats format)
Read a file on any format natively supported by the library.
dvb_write_file_format
int dvb_write_file_format(const char *fname, struct dvb_file *dvb_file, uint32_t delsys, enum dvb_file_formats format)
Write a file on any format natively supported by the library.
dvb_file_free
static void dvb_file_free(struct dvb_file *dvb_file)
Deallocates memory associated with a struct dvb_file.
Definition dvb-file.h:255
dvb_parse_format
enum dvb_file_formats dvb_parse_format(const char *name)
Ancillary function that parses the name of a file format.
dvb_parse_delsys
int dvb_parse_delsys(const char *name)
Ancillary function that seeks for a delivery system.
dvb_file
Describes an entire DVB file opened.
Definition dvb-file.h:135