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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
*/
#ifndef _UCSI_DVB_TOT_SECTION_H
#define _UCSI_DVB_TOT_SECTION_H 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/section.h>
#include <libucsi/dvb/types.h>
/**
* dvb_tot_section structure.
*/
struct dvb_tot_section {
struct section head;
dvbdate_t utc_time;
EBIT2(uint16_t reserved : 4; ,
uint16_t descriptors_loop_length:12; );
/* struct descriptor descriptors[] */
} __ucsi_packed;
/**
* Process a dvb_tot_section.
*
* @param section Pointer to generic section structure.
* @return dvb_tot_section pointer, or NULL on error.
*/
struct dvb_tot_section * dvb_tot_section_codec(struct section *section);
/**
* Iterator for descriptors field of dvb_tot_section.
*
* @param tot dvb_tot_section pointer.
* @param pos Variable holding a pointer to the current descriptor.
*/
#define dvb_tot_section_descriptors_for_each(tot, pos) \
for ((pos) = dvb_tot_section_descriptors_first(tot); \
(pos); \
(pos) = dvb_tot_section_descriptors_next(tot, pos))
/******************************** PRIVATE CODE ********************************/
static inline struct descriptor *
dvb_tot_section_descriptors_first(struct dvb_tot_section * tot)
{
if (tot->descriptors_loop_length == 0)
return NULL;
return (struct descriptor *)
((uint8_t *) tot + sizeof(struct dvb_tot_section));
}
static inline struct descriptor *
dvb_tot_section_descriptors_next(struct dvb_tot_section *tot,
struct descriptor* pos)
{
return next_descriptor((uint8_t *) tot + sizeof(struct dvb_tot_section),
tot->descriptors_loop_length,
pos);
}
#ifdef __cplusplus
}
#endif
#endif
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