/usr/include/libucsi/dvb/multilingual_component_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 | /*
* 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_MULTILINGUAL_COMPONENT_DESCRIPTOR
#define _UCSI_DVB_MULTILINGUAL_COMPONENT_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/descriptor.h>
#include <libucsi/endianops.h>
#include <libucsi/types.h>
/**
* dvb_multilingual_component_descriptor structure.
*/
struct dvb_multilingual_component_descriptor {
struct descriptor d;
uint8_t component_tag;
/* struct dvb_multilingual_component components[] */
} __ucsi_packed;
/**
* An entry in the components field of a dvb_multilingual_component_descriptor.
*/
struct dvb_multilingual_component {
iso639lang_t language_code;
uint8_t text_description_length;
/* uint8_t text_char[] */
} __ucsi_packed;
/**
* Process a dvb_multilingual_component_descriptor.
*
* @param d Generic descriptor pointer.
* @return dvb_multilingual_component_descriptor pointer, or NULL on error.
*/
static inline struct dvb_multilingual_component_descriptor*
dvb_multilingual_component_descriptor_codec(struct descriptor* d)
{
uint8_t* buf = (uint8_t*) d + 2;
uint32_t pos = sizeof(struct dvb_multilingual_component_descriptor) - 2;
uint32_t len = d->len;
if (pos > len)
return NULL;
while(pos < len) {
struct dvb_multilingual_component *e =
(struct dvb_multilingual_component*) (buf+pos);
pos += sizeof(struct dvb_multilingual_component);
if (pos > len)
return NULL;
pos += e->text_description_length;
if (pos > len)
return NULL;
}
return (struct dvb_multilingual_component_descriptor*) d;
}
/**
* Iterator for entries in the components field of a dvb_multilingual_component_descriptor.
*
* @param d Generic descriptor pointer.
* @param pos Variable containing a pointer to the current dvb_multilingual_component.
*/
#define dvb_multilingual_component_descriptor_components_for_each(d, pos) \
for ((pos) = dvb_multilingual_component_descriptor_components_first(d); \
(pos); \
(pos) = dvb_multilingual_component_descriptor_components_next(d, pos))
/**
* Accessor for the text_char field in a dvb_multilingual_component.
*
* @param e dvb_multilingual_component pointer.
* @return Pointer to the field.
*/
static inline uint8_t *
dvb_multilingual_component_text_char(struct dvb_multilingual_component *e)
{
return (uint8_t *) e + sizeof(struct dvb_multilingual_component);
}
/******************************** PRIVATE CODE ********************************/
static inline struct dvb_multilingual_component*
dvb_multilingual_component_descriptor_components_first(struct dvb_multilingual_component_descriptor *d)
{
if (d->d.len == 1)
return NULL;
return (struct dvb_multilingual_component *)
((uint8_t*) d + sizeof(struct dvb_multilingual_component_descriptor));
}
static inline struct dvb_multilingual_component*
dvb_multilingual_component_descriptor_components_next(struct dvb_multilingual_component_descriptor *d,
struct dvb_multilingual_component *pos)
{
uint8_t *end = (uint8_t*) d + 2 + d->d.len;
uint8_t *next = (uint8_t *) pos +
sizeof(struct dvb_multilingual_component) +
pos->text_description_length;
if (next >= end)
return NULL;
return (struct dvb_multilingual_component *) next;
}
#ifdef __cplusplus
}
#endif
#endif
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