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Diffstat (limited to 'lib/libucsi/mpeg/datagram_section.h')
| -rw-r--r-- | lib/libucsi/mpeg/datagram_section.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/lib/libucsi/mpeg/datagram_section.h b/lib/libucsi/mpeg/datagram_section.h new file mode 100644 index 0000000..769773a --- /dev/null +++ b/lib/libucsi/mpeg/datagram_section.h @@ -0,0 +1,81 @@ +/* + * 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 |