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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)
* Copyright (C) 2008 Patrick Boettcher (pb@linuxtv.org)
*
* 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_MPEG_DATAGRAM_SECTION_H
#define _UCSI_MPEG_DATAGRAM_SECTION_H 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/section.h>
/**
* datagram_section structure.
*/
struct datagram_section {
struct section head;
uint8_t MAC_address_6;
uint8_t MAC_address_5;
EBIT5(uint8_t reserved : 2; ,
uint8_t payload_scrambling_control : 2; ,
uint8_t address_scrambling_control : 2; ,
uint8_t LLC_SNAP_flag : 1; ,
uint8_t current_next_indicator : 1; );
uint8_t section_number;
uint8_t last_section_number;
uint8_t MAC_address_4;
uint8_t MAC_address_3;
uint8_t MAC_address_2;
uint8_t MAC_address_1;
/* LLC_SNAP or IP-data */
/* if last section stuffing */
/* CRC */
} __ucsi_packed;
/**
*/
static inline struct datagram_section *datagram_section_codec(struct section *section)
{
/* something to do here ? */
return (struct datagram_section *) section;
}
static inline uint8_t *datagram_section_ip_data(struct datagram_section *d)
{
return (uint8_t *) d + sizeof(struct section) + 2 + 1 + 1 + 1 + 4;
}
static inline size_t datagram_section_ip_data_length(struct datagram_section *d)
{
return section_length(&d->head) - (sizeof(struct section) + 2 + 1 + 1 + 1 + 4) - CRC_SIZE;
}
#ifdef __cplusplus
}
#endif
#endif
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