/usr/include/libucsi/mpeg/iso_639_language_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 | /*
* 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_MPEG_ISO_639_LANGUAGE_DESCRIPTOR
#define _UCSI_MPEG_ISO_639_LANGUAGE_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/descriptor.h>
#include <libucsi/endianops.h>
#include <libucsi/types.h>
/**
* Possible values for audio_type.
*/
enum {
MPEG_AUDIO_TYPE_CLEAN_EFFECTS = 0x01,
MPEG_AUDIO_TYPE_HEARING_IMPAIRED = 0x02,
MPEG_AUDIO_TYPE_VISUAL_IMPAIRED_COMMENTARY = 0x03,
};
/**
* mpeg_iso_639_language_descriptor structure.
*/
struct mpeg_iso_639_language_descriptor {
struct descriptor d;
/* struct mpeg_iso_639_language_code languages[] */
} __ucsi_packed;
/**
* An entry in the mpeg_iso_639_language_descriptor languages field.
*/
struct mpeg_iso_639_language_code {
iso639lang_t language_code;
uint8_t audio_type;
} __ucsi_packed;
/**
* Process an mpeg_iso_639_language_descriptor.
*
* @param d Generic descriptor structure.
* @return Pointer to an mpeg_iso_639_language_descriptor structure, or NULL
* on error.
*/
static inline struct mpeg_iso_639_language_descriptor*
mpeg_iso_639_language_descriptor_codec(struct descriptor* d)
{
if (d->len % sizeof(struct mpeg_iso_639_language_code))
return NULL;
return (struct mpeg_iso_639_language_descriptor*) d;
}
/**
* Convenience iterator for the languages field of an mpeg_iso_639_language_descriptor
*
* @param d Pointer to the mpeg_iso_639_language_descriptor structure.
* @param pos Variable holding a pointer to the current entry.
*/
#define mpeg_iso_639_language_descriptor_languages_for_each(_d, _pos) \
for ((_pos) = mpeg_iso_639_language_descriptor_languages_first(_d); \
(_pos); \
(_pos) = mpeg_iso_639_language_descriptor_languages_next(_d, _pos))
/******************************** PRIVATE CODE ********************************/
static inline struct mpeg_iso_639_language_code*
mpeg_iso_639_language_descriptor_languages_first(struct mpeg_iso_639_language_descriptor *d)
{
if (d->d.len < sizeof(struct mpeg_iso_639_language_code))
return NULL;
return (struct mpeg_iso_639_language_code *)
((uint8_t*) d + sizeof(struct mpeg_iso_639_language_descriptor));
}
static inline struct mpeg_iso_639_language_code*
mpeg_iso_639_language_descriptor_languages_next(struct mpeg_iso_639_language_descriptor *d,
struct mpeg_iso_639_language_code *pos)
{
uint8_t *end = (uint8_t*) d + 2 + d->d.len;
uint8_t *next = (uint8_t *) pos + sizeof(struct mpeg_iso_639_language_code);
if (next >= end)
return NULL;
return (struct mpeg_iso_639_language_code *) next;
}
#ifdef __cplusplus
}
#endif
#endif
|