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/*
* 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/atsc/stt_section.h>
struct atsc_stt_section *atsc_stt_section_codec(struct atsc_section_psip *psip)
{
uint8_t *buf = (uint8_t *) psip;
size_t pos = sizeof(struct atsc_section_psip);
size_t len = section_ext_length(&(psip->ext_head));
if (len < sizeof(struct atsc_stt_section))
return NULL;
bswap32(buf + pos);
pos += 5;
bswap16(buf + pos);
pos += 2;
if (verify_descriptors(buf + pos, len - sizeof(struct atsc_stt_section)))
return NULL;
return (struct atsc_stt_section *) psip;
}
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