You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
51 lines
1.5 KiB
51 lines
1.5 KiB
/*
|
|
* section and descriptor parser
|
|
*
|
|
* Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
|
|
* Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
|
|
*/
|
|
|
|
#include <libucsi/dvb/tot_section.h>
|
|
|
|
struct dvb_tot_section *dvb_tot_section_codec(struct section *section)
|
|
{
|
|
uint8_t * buf = (uint8_t *)section;
|
|
size_t pos = sizeof(struct section);
|
|
size_t len = section_length(section) - CRC_SIZE;
|
|
struct dvb_tot_section * ret = (struct dvb_tot_section *)section;
|
|
|
|
if (len < sizeof(struct dvb_tot_section))
|
|
return NULL;
|
|
|
|
pos += 5;
|
|
bswap16(buf + pos);
|
|
pos += 2;
|
|
|
|
if ((pos + ret->descriptors_loop_length) > len)
|
|
return NULL;
|
|
|
|
if (verify_descriptors(buf + pos, ret->descriptors_loop_length))
|
|
return NULL;
|
|
|
|
pos += ret->descriptors_loop_length;
|
|
|
|
if (pos != len)
|
|
return NULL;
|
|
|
|
return ret;
|
|
}
|