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
|
/*****************************************************************************
* desc_4f.h: ETSI EN 300 468 Descriptor 0x4f: (Time shifted event descriptor)
*****************************************************************************
* Copyright (C) 2011 Unix Solutions Ltd.
*
* Authors: Georgi Chorbadzhiyski <georgi@unixsol.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*****************************************************************************/
/*
* Normative references:
* - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems)
*/
#ifndef __BITSTREAM_DVB_DESC_4F_H__
#define __BITSTREAM_DVB_DESC_4F_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Descriptor 0x4f: Time shifted event descriptor
*****************************************************************************/
#define DESC4F_HEADER_SIZE (DESC_HEADER_SIZE + 4)
static inline void desc4f_init(uint8_t *p_desc)
{
desc_set_tag(p_desc, 0x4f);
desc_set_length(p_desc, DESC4F_HEADER_SIZE - DESC_HEADER_SIZE);
}
static inline uint16_t desc4f_get_reference_sid(const uint8_t *p_desc)
{
return (p_desc[2] << 8) | p_desc[3];
}
static inline void desc4f_set_reference_sid(uint8_t *p_desc, uint16_t i_reference_sid)
{
p_desc[2] = (i_reference_sid >> 8) & 0xff;
p_desc[3] = i_reference_sid & 0xff;
}
static inline uint16_t desc4f_get_reference_event_id(const uint8_t *p_desc)
{
return (p_desc[4] << 8) | p_desc[5];
}
static inline void desc4f_set_reference_event_id(uint8_t *p_desc, uint16_t i_reference_event_id)
{
p_desc[4] = (i_reference_event_id >> 8) & 0xff;
p_desc[5] = i_reference_event_id & 0xff;
}
static inline bool desc4f_validate(const uint8_t *p_desc)
{
return desc_get_length(p_desc) >= DESC4F_HEADER_SIZE - DESC_HEADER_SIZE;
}
static inline void desc4f_print(const uint8_t *p_desc, f_print pf_print,
void *opaque, print_type_t i_print_type)
{
switch (i_print_type) {
case PRINT_XML:
pf_print(opaque, "<TIME_SHIFTED_EVENT_DESC reference_sid=\"%u\" reference_event_id=\"%u\"/>",
desc4f_get_reference_sid(p_desc),
desc4f_get_reference_event_id(p_desc)
);
break;
default:
pf_print(opaque, " - desc 4f time_shifted_service reference_sid=%u reference_event_id=%u",
desc4f_get_reference_sid(p_desc),
desc4f_get_reference_event_id(p_desc)
);
}
}
#ifdef __cplusplus
}
#endif
#endif
|
