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Diffstat (limited to '')
| -rw-r--r-- | lib/libucsi/dvb/terrestrial_delivery_descriptor.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/terrestrial_delivery_descriptor.h b/lib/libucsi/dvb/terrestrial_delivery_descriptor.h new file mode 100644 index 0000000..c624dab --- /dev/null +++ b/lib/libucsi/dvb/terrestrial_delivery_descriptor.h @@ -0,0 +1,77 @@ +/* + * 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 |