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* section and descriptor parser
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* Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
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* Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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#ifndef _UCSI_DVB_DATA_BROADCAST_ID_DESCRIPTOR
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#define _UCSI_DVB_DATA_BROADCAST_ID_DESCRIPTOR 1
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#include <libucsi/descriptor.h>
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#include <libucsi/endianops.h>
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* Possible values for data_broadcast_id.
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DVB_BROADCAST_ID_DATA_PIPE = 0X0001,
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DVB_BROADCAST_ID_ASYNCHRONOUS_DATA_STREAM = 0X0002,
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DVB_BROADCAST_ID_SYNCHRONOUS_DATA_STREAM = 0X0003,
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DVB_BROADCAST_ID_SYNCHRONISED_DATA_STREAM = 0X0004,
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DVB_BROADCAST_ID_MULTI_PROTOCOL_ENCAPSULATION = 0X0005,
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DVB_BROADCAST_ID_DATA_CAROUSEL = 0X0006,
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DVB_BROADCAST_ID_OBJECT_CAROUSEL = 0X0007,
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DVB_BROADCAST_ID_DVB_ATM_STREAMS = 0X0008,
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DVB_BROADCAST_ID_HIGHER_PROTOCOLS = 0X0009,
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DVB_BROADCAST_ID_SOFTWARE_UPDATE = 0x000A,
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DVB_BROADCAST_ID_IP_MAC_NOTIFICATION_TABLE = 0x000B,
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* dvb_data_broadcast_id_descriptor structure.
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struct dvb_data_broadcast_id_descriptor {
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uint16_t data_broadcast_id;
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/* uint8_t id_selector_byte[] */
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* id_selector_byte for 0x000b data_broadcast_id (IP/MAC Notification Table).
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struct dvb_id_selector_byte_000b {
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uint8_t platform_id_data_length;
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/* struct dvb_ip_mac_notification_info infos[] */
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/* uint8_t private_data[] */
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* Entries in the infos field of a dvb_id_selector_byte_0b.
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struct dvb_ip_mac_notification_info {
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EBIT2(uint32_t platform_id : 24; ,
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uint8_t action_type : 8; );
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EBIT3(uint8_t reserved : 2; ,
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uint8_t INT_versioning_flag : 1; ,
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uint8_t INT_version : 5; );
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* Process a dvb_data_broadcast_id_descriptor.
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* @param d Generic descriptor structure.
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* @return dvb_data_broadcast_id_descriptor pointer, or NULL on error.
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static inline struct dvb_data_broadcast_id_descriptor*
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dvb_data_broadcast_id_descriptor_codec(struct descriptor* d)
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if (d->len < (sizeof(struct dvb_data_broadcast_id_descriptor) - 2))
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bswap16((uint8_t*) d + 2);
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return (struct dvb_data_broadcast_id_descriptor*) d;
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* Accessor for the selector_byte field of a dvb_data_broadcast_id_descriptor.
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* @param d dvb_data_broadcast_id_descriptor pointer.
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* @return Pointer to the field.
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static inline uint8_t *
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dvb_data_broadcast_id_descriptor_id_selector_byte(struct dvb_data_broadcast_id_descriptor *d)
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return (uint8_t *) d + sizeof(struct dvb_data_broadcast_id_descriptor);
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* Determine the length of the selector_byte field of a dvb_data_broadcast_id_descriptor.
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* @param d dvb_data_broadcast_id_descriptor pointer.
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* @return Length of the field in bytes.
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dvb_data_broadcast_id_descriptor_id_selector_byte_length(struct dvb_data_broadcast_id_descriptor *d)
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* Accessor for a dvb_id_selector_byte_000b pointer.
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* @param d dvb_data_broadcast_id_descriptor pointer.
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* @return Pointer to the data field.
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static inline struct dvb_id_selector_byte_000b *
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dvb_id_selector_byte_000b(struct dvb_data_broadcast_id_descriptor *d)
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if (d->data_broadcast_id != DVB_BROADCAST_ID_IP_MAC_NOTIFICATION_TABLE)
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return (struct dvb_id_selector_byte_000b *) dvb_data_broadcast_id_descriptor_id_selector_byte(d);
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* Iterator for the dvb_ip_mac_notification_info field of a dvb_id_selector_byte_000b.
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* @param id_selector_byte dvb_id_selector_byte_000b pointer.
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* @param pos Variable containing a pointer to the current dvb_ip_mac_notification_info.
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#define dvb_id_selector_byte_000b_ip_mac_notification_info_for_each(id_selector_byte, pos) \
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for ((pos) = dvb_ip_mac_notification_info_first(id_selector_byte); \
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(pos) = dvb_ip_mac_notification_info_next(id_selector_byte, pos))
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* Length of the private_data field of a dvb_id_selector_byte_000b.
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* @param d descriptor pointer.
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* @param i dvb_id_selector_byte_000b pointer.
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* @return Length of the field.
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static inline uint8_t
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dvb_id_selector_byte_000b_private_data_length(struct descriptor *d,
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struct dvb_id_selector_byte_000b *i)
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return (uint8_t) (d->len -
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sizeof(struct descriptor) -
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i->platform_id_data_length -
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sizeof(struct dvb_id_selector_byte_000b));
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* Accessor for the private_data field of a dvb_id_selector_byte_000b.
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* @param d descriptor pointer.
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* @param i dvb_id_selector_byte_000b pointer.
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* @return Pointer to the field.
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static inline uint8_t *
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dvb_id_selector_byte_000b_private_data(struct descriptor *d,
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struct dvb_id_selector_byte_000b *i)
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if (dvb_id_selector_byte_000b_private_data_length(d, i) <= 0)
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return (uint8_t *) i + i->platform_id_data_length + sizeof(struct dvb_id_selector_byte_000b);
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/******************************** PRIVATE CODE ********************************/
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static inline struct dvb_ip_mac_notification_info *
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dvb_ip_mac_notification_info_first(struct dvb_id_selector_byte_000b *d)
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if (d->platform_id_data_length == 0)
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bswap32((uint8_t *) d + sizeof(struct dvb_id_selector_byte_000b));
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return (struct dvb_ip_mac_notification_info *) ((uint8_t *) d + sizeof(struct dvb_id_selector_byte_000b));
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static inline struct dvb_ip_mac_notification_info *
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dvb_ip_mac_notification_info_next(struct dvb_id_selector_byte_000b *d,
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struct dvb_ip_mac_notification_info *pos)
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uint8_t *end = (uint8_t *) d + d->platform_id_data_length;
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uint8_t *next = (uint8_t *) pos +
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sizeof(struct dvb_id_selector_byte_000b) +
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sizeof(struct dvb_ip_mac_notification_info);
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return (struct dvb_ip_mac_notification_info *) next;
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#include <libucsi/dvb/mhp_data_broadcast_id_descriptor.h>
added
removed
src/libucsi/dvb/data_broadcast_id_descriptor.h
