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
|
-- ASN description of MPEG Packetized Elementary Stream (PES)
-- Written by Shaun Jackman <sjackman@gmail.com>
-- Copyright 2007 Shaun Jackman
--
-- This program is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License.
MPEG DEFINITIONS ::= BEGIN
PES ::= SEQUENCE {
prefix OCTET STRING (SIZE (3)),
stream INTEGER {
picture (0),
sequence-header (179),
sequence-header-extension (181),
group-of-pictures (184),
program-end (185),
pack-header (186),
system-header (187),
program-stream-map (188),
private-stream-1 (189),
padding-stream (190),
private-stream-2 (191),
audio-stream (192),
video-stream (224)
} (0..255)
}
Stream ::= SEQUENCE {
length INTEGER (0..65535),
must-be-one BOOLEAN,
must-be-zero BOOLEAN,
scrambling-control INTEGER {
not-scrambled (0)
} (0..3),
priority BOOLEAN,
data-alignment BOOLEAN,
copyright BOOLEAN,
original BOOLEAN,
pts-flag BOOLEAN,
dts-flag BOOLEAN,
escr-flag BOOLEAN,
es-rate-flag BOOLEAN,
dsm-trick-mode-flag BOOLEAN,
additional-copy-info-flag BOOLEAN,
crc-flag BOOLEAN,
extension-flag BOOLEAN,
header-data-length INTEGER (0..255)
}
Sequence-header ::= SEQUENCE {
horizontal-size BIT STRING (SIZE (12)),
vertical-size BIT STRING (SIZE (12)),
aspect-ratio INTEGER {
aspect-1to1 (1),
aspect-4to3 (2),
aspect-16to9 (3),
aspect-2-21to1 (4)
} (0..15),
frame-rate ENUMERATED {
reserved (0),
fr (23976),
fr (24000),
fr (25000),
fr (29970),
fr (30000),
fr (50000),
fr (59940),
fr (60000)
},
bit-rate BIT STRING (SIZE (18)),
must-be-one BOOLEAN,
vbv-buffer-size BIT STRING (SIZE (10)),
constrained-parameters-flag BOOLEAN,
load-intra-quantiser-matrix BOOLEAN,
load-non-intra-quantiser-matrix BOOLEAN
}
Sequence-extension ::= SEQUENCE {
must-be-0001 BIT STRING (SIZE (4)),
profile-and-level INTEGER (0..255),
progressive-sequence BOOLEAN,
chroma-format INTEGER (0..3),
horizontal-size-extension INTEGER (0..3),
vertical-size-extension INTEGER (0..3),
bit-rate-extension BIT STRING (SIZE (12)),
must-be-one BOOLEAN,
vbv-buffer-size-extension INTEGER (0..255),
low-delay BOOLEAN,
frame-rate-extension-n INTEGER (0..3),
frame-rate-extension-d INTEGER (0..3)
}
Group-of-pictures ::= SEQUENCE {
drop-frame-flag BOOLEAN,
hour INTEGER (0..32),
minute INTEGER (0..64),
must-be-one BOOLEAN,
second INTEGER (0..64),
frame INTEGER (0..64),
closed-gop BOOLEAN,
broken-gop BOOLEAN,
must-be-zero BIT STRING (SIZE (5))
}
Picture ::= SEQUENCE {
temporal-sequence-number BIT STRING (SIZE (10)),
frame-type INTEGER {
i-frame (1),
p-frame (2),
b-frame (3),
d-frame (4)
} (0..7),
vbv-delay BIT STRING (SIZE (16))
}
END
|
