diff options
Diffstat (limited to 'lib/libucsi/dvb/satellite_delivery_descriptor.h')
| -rw-r--r-- | lib/libucsi/dvb/satellite_delivery_descriptor.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/satellite_delivery_descriptor.h b/lib/libucsi/dvb/satellite_delivery_descriptor.h new file mode 100644 index 0000000..b93d052 --- /dev/null +++ b/lib/libucsi/dvb/satellite_delivery_descriptor.h @@ -0,0 +1,73 @@ +/* + * 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 |