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.
74 lines
2.1 KiB
74 lines
2.1 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
|
|
*/
|
|
|
|
#ifndef _UCSI_DVB_SATELLITE_DELIVERY_DESCRIPTOR
|
|
#define _UCSI_DVB_SATELLITE_DELIVERY_DESCRIPTOR 1
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
#include <libucsi/descriptor.h>
|
|
#include <libucsi/endianops.h>
|
|
|
|
/**
|
|
* dvb_satellite_delivery_descriptor structure.
|
|
*/
|
|
struct dvb_satellite_delivery_descriptor {
|
|
struct descriptor d;
|
|
|
|
uint32_t frequency; // BCD, units 10kHz
|
|
uint16_t orbital_position;
|
|
EBIT5(uint8_t west_east_flag : 1; ,
|
|
uint8_t polarization : 2; ,
|
|
uint8_t roll_off : 2; ,
|
|
uint8_t modulation_system : 1; ,
|
|
uint8_t modulation_type : 2; );
|
|
EBIT2(uint32_t symbol_rate : 28; , // BCD, units 100Hz
|
|
uint32_t fec_inner : 4; );
|
|
} __ucsi_packed;
|
|
|
|
/**
|
|
* Process a dvb_satellite_delivery_descriptor.
|
|
*
|
|
* @param d Pointer to a generic descriptor structure.
|
|
* @return dvb_satellite_delivery_descriptor pointer, or NULL on error.
|
|
*/
|
|
static inline struct dvb_satellite_delivery_descriptor*
|
|
dvb_satellite_delivery_descriptor_codec(struct descriptor* d)
|
|
{
|
|
if (d->len < (sizeof(struct dvb_satellite_delivery_descriptor) - 2))
|
|
return NULL;
|
|
|
|
bswap32((uint8_t*) d + 2);
|
|
bswap16((uint8_t*) d + 6);
|
|
bswap32((uint8_t*) d + 9);
|
|
|
|
return (struct dvb_satellite_delivery_descriptor*) d;
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|