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
|
/*
* 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_RNT_RAR_OVER_DVB_STREAM_DESCRIPTOR
#define _UCSI_DVB_RNT_RAR_OVER_DVB_STREAM_DESCRIPTOR 1
#ifdef __cplusplus
extern "C"
{
#endif
#include <libucsi/descriptor.h>
#include <libucsi/endianops.h>
/**
* dvb_rnt_rar_over_dvb_stream_descriptor structure.
*/
struct dvb_rnt_rar_over_dvb_stream_descriptor {
struct descriptor d;
dvbdate_t first_valid_date;
dvbdate_t last_valid_date;
EBIT3(uint8_t weighting : 6; ,
uint8_t complete_flag : 1; ,
uint8_t scheduled_flag : 1; );
uint16_t transport_stream_id;
uint16_t original_network_id;
uint16_t service_id;
uint8_t component_tag;
/* struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info scheduled_info */
} __ucsi_packed;
/**
* The scheduled_info field of a dvb_rnt_rar_over_dvb_stream_descriptor (only appears
* if scheduled_flag = 1).
*/
struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info {
dvbdate_t download_start_time;
uint8_t download_period_duration;
uint8_t download_cycle_time;
} __ucsi_packed;
/**
* Process a dvb_rnt_rar_over_dvb_stream_descriptor.
*
* @param d Generic descriptor pointer.
* @return dvb_rnt_rar_over_dvb_stream_descriptor pointer, or NULL on error.
*/
static inline struct dvb_rnt_rar_over_dvb_stream_descriptor*
dvb_rnt_rar_over_dvb_stream_descriptor_codec(struct descriptor* d)
{
uint8_t *buf = (uint8_t*) d;
uint32_t len = d->len + 2;
struct dvb_rnt_rar_over_dvb_stream_descriptor *ret =
(struct dvb_rnt_rar_over_dvb_stream_descriptor *) buf;
if (len < sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor))
return NULL;
bswap16(buf + 13);
bswap16(buf + 15);
bswap16(buf + 17);
if (ret->scheduled_flag == 1) {
if (len < (sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor)+
sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info)))
return NULL;
}
return ret;
}
/**
* Accessor for the scheduled_info field of a dvb_rnt_rar_over_dvb_stream_descriptor.
*
* @param d dvb_rnt_rar_over_dvb_stream_descriptor pointer.
* @return Pointer, or NULL on error.
*/
static inline struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info*
dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info(struct dvb_rnt_rar_over_dvb_stream_descriptor *d)
{
if (d->scheduled_flag != 1)
return NULL;
return (struct dvb_rnt_rar_over_dvb_stream_descriptor_scheduled_info*)
((uint8_t*) d + sizeof(struct dvb_rnt_rar_over_dvb_stream_descriptor));
}
#ifdef __cplusplus
}
#endif
#endif
|
