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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_TERRESTRIAL_DELIVERY_DESCRIPTOR
#define _UCSI_DVB_TERRESTRIAL_DELIVERY_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/descriptor.h>
#include <libucsi/endianops.h>
/**
* dvb_terrestrial_delivery_descriptor structure.
*/
struct dvb_terrestrial_delivery_descriptor {
struct descriptor d;
uint32_t centre_frequency; // Normal integer, units 10Hz
EBIT5(uint8_t bandwidth : 3; ,
uint8_t priority : 1; ,
uint8_t time_slicing_indicator : 1; ,
uint8_t mpe_fec_indicator : 1; ,
uint8_t reserved_1 : 2; );
EBIT3(uint8_t constellation : 2; ,
uint8_t hierarchy_information : 3; ,
uint8_t code_rate_hp_stream : 3; );
EBIT4(uint8_t code_rate_lp_stream : 3; ,
uint8_t guard_interval : 2; ,
uint8_t transmission_mode : 2; ,
uint8_t other_frequency_flag : 1; );
uint32_t reserved_2;
} __ucsi_packed;
/**
* Process a dvb_terrestrial_delivery_descriptor.
*
* @param d Generic descriptor structure.
* @return dvb_terrestrial_delivery_descriptor pointer, or NULL on error.
*/
static inline struct dvb_terrestrial_delivery_descriptor*
dvb_terrestrial_delivery_descriptor_codec(struct descriptor* d)
{
if (d->len != (sizeof(struct dvb_terrestrial_delivery_descriptor) - 2))
return NULL;
bswap32((uint8_t*) d + 2);
bswap32((uint8_t*) d + 9);
return (struct dvb_terrestrial_delivery_descriptor*) d;
}
#ifdef __cplusplus
}
#endif
#endif
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