/usr/include/libucsi/dvb/ait_application_descriptor.h is in dvb-apps 1.1.1+rev1500-1.1+b1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | /*
* 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_AIT_APPLICATION_DESCRIPTOR
#define _UCSI_DVB_AIT_APPLICATION_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/descriptor.h>
#include <libucsi/endianops.h>
/**
* Possible values for the visibility field.
*/
enum {
AVB_AIT_APPLICATION_VISIBILITY_HIDDEN = 0x00,
AVB_AIT_APPLICATION_VISIBILITY_APPSONLY = 0x01,
AVB_AIT_APPLICATION_VISIBILITY_VISIBLE = 0x03,
};
/**
* dvb_ait_application_descriptor structure.
*/
struct dvb_ait_application_descriptor {
struct descriptor d;
uint8_t application_profiles_length;
/* struct dvb_ait_application_profile profiles [] */
/* struct dvb_ait_application_descriptor_part2 part2 */
} __ucsi_packed;
/**
* An entry in the profiles field of a dvb_ait_application_descriptor.
*/
struct dvb_ait_application_profile {
uint16_t application_profile;
uint8_t version_major;
uint8_t version_minor;
uint8_t version_micro;
} __ucsi_packed;
/**
* Second part of a dvb_ait_application_descriptor structure.
*/
struct dvb_ait_application_descriptor_part2 {
EBIT3(uint8_t service_bound_flag : 1; ,
uint8_t visibility : 2; ,
uint8_t reserved : 5; );
uint8_t application_priority;
/* uint8_t transport_protocol_label[] */
} __ucsi_packed;
/**
* Process a dvb_ait_application_descriptor.
*
* @param d Generic descriptor pointer.
* @return dvb_ait_application_descriptor pointer, or NULL on error.
*/
static inline struct dvb_ait_application_descriptor*
dvb_ait_application_descriptor_codec(struct descriptor* d)
{
uint32_t pos = 0;
uint32_t pos2 = 0;
uint32_t len = d->len + 2;
uint8_t* buf = (uint8_t*) d;
struct dvb_ait_application_descriptor *ret =
(struct dvb_ait_application_descriptor*) d;
if (len < sizeof(struct dvb_ait_application_descriptor))
return NULL;
if (len < (sizeof(struct dvb_ait_application_descriptor) + ret->application_profiles_length))
return NULL;
if (ret->application_profiles_length % sizeof(struct dvb_ait_application_profile))
return NULL;
pos += sizeof(struct dvb_ait_application_descriptor);
pos2 = 0;
while(pos2 < ret->application_profiles_length) {
bswap16(buf + pos + pos2);
pos2 += sizeof(struct dvb_ait_application_descriptor);
}
pos += pos2;
if (len < (pos + sizeof(struct dvb_ait_application_descriptor_part2)))
return NULL;
return ret;
}
/**
* Iterator for the profiles field of a dvb_ait_application_descriptor.
*
* @param d dvb_ait_application_descriptor pointer.
* @param pos Variable containing a pointer to the current dvb_ait_application_profile.
*/
#define dvb_ait_application_descriptor_profiles_for_each(d, pos) \
for ((pos) = dvb_ait_application_descriptor_profiles_first(d); \
(pos); \
(pos) = dvb_ait_application_descriptor_profiles_next(d, pos))
/**
* Accessor for the part2 field of a dvb_ait_application_descriptor.
*
* @param d dvb_ait_application_descriptor pointer.
* @return dvb_ait_application_descriptor_part2 pointer.
*/
static inline struct dvb_ait_application_descriptor_part2*
dvb_ait_application_descriptor_part2(struct dvb_ait_application_descriptor* d)
{
return (struct dvb_ait_application_descriptor_part2*)
((uint8_t*) d +
sizeof(struct dvb_ait_application_descriptor) +
d->application_profiles_length);
}
/**
* Accessor for the transport_protocol_label field of a dvb_ait_application_descriptor_part2.
*
* @param d dvb_ait_application_descriptor_part2 pointer.
* @return Pointer to the field.
*/
static inline uint8_t*
dvb_ait_application_descriptor_part2_transport_protocol_label(struct dvb_ait_application_descriptor_part2* d)
{
return (uint8_t*) d +
sizeof(struct dvb_ait_application_descriptor_part2);
}
/**
* Calculate the number of bytes in the transport_protocol_label field of a dvb_ait_application_descriptor_part2.
*
* @param d dvb_ait_application_descriptor pointer.
* @param part2 dvb_ait_application_descriptor_part2 pointer.
* @return Number of bytes.
*/
static inline int
dvb_ait_application_descriptor_part2_transport_protocol_label_length(struct dvb_ait_application_descriptor *d,
struct dvb_ait_application_descriptor_part2* part2)
{
uint8_t *ptr = (uint8_t*) part2 + sizeof(struct dvb_ait_application_descriptor_part2);
uint8_t *end = (uint8_t*) d + d->d.len + 2;
return (int) (end - ptr);
}
/******************************** PRIVATE CODE ********************************/
static inline struct dvb_ait_application_profile*
dvb_ait_application_descriptor_profiles_first(struct dvb_ait_application_descriptor *d)
{
if (d->application_profiles_length == 0)
return NULL;
return (struct dvb_ait_application_profile *)
((uint8_t*) d + sizeof(struct dvb_ait_application_descriptor));
}
static inline struct dvb_ait_application_profile*
dvb_ait_application_descriptor_profiles_next(struct dvb_ait_application_descriptor *d,
struct dvb_ait_application_profile *pos)
{
uint8_t *end = (uint8_t*) d +
sizeof(struct dvb_ait_application_descriptor) +
d->application_profiles_length;
uint8_t *next = (uint8_t *) pos + sizeof(struct dvb_ait_application_profile);
if (next >= end)
return NULL;
return (struct dvb_ait_application_profile *) next;
}
#ifdef __cplusplus
}
#endif
#endif
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