blob: dea8171a6b5d08298f78752f58a5f0c26c875ada (
plain)
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
|
//------------------------------------------------------------------------------
// File: FourCC.h
//
// Desc: DirectShow base classes.
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------------------------
// FOURCCMap
//
// provides a mapping between old-style multimedia format DWORDs
// and new-style GUIDs.
//
// A range of 4 billion GUIDs has been allocated to ensure that this
// mapping can be done straightforwardly one-to-one in both directions.
//
// January 95
#ifndef __FOURCC__
#define __FOURCC__
// Multimedia format types are marked with DWORDs built from four 8-bit
// chars and known as FOURCCs. New multimedia AM_MEDIA_TYPE definitions include
// a subtype GUID. In order to simplify the mapping, GUIDs in the range:
// XXXXXXXX-0000-0010-8000-00AA00389B71
// are reserved for FOURCCs.
class FOURCCMap : public GUID
{
public:
FOURCCMap();
FOURCCMap(DWORD Fourcc);
FOURCCMap(const GUID *);
DWORD GetFOURCC(void);
void SetFOURCC(DWORD fourcc);
void SetFOURCC(const GUID *);
private:
void InitGUID();
};
#define GUID_Data2 0
#define GUID_Data3 0x10
#define GUID_Data4_1 0xaa000080
#define GUID_Data4_2 0x719b3800
inline void
FOURCCMap::InitGUID() {
Data2 = GUID_Data2;
Data3 = GUID_Data3;
((DWORD *)Data4)[0] = GUID_Data4_1;
((DWORD *)Data4)[1] = GUID_Data4_2;
}
inline
FOURCCMap::FOURCCMap() {
InitGUID();
SetFOURCC( DWORD(0));
}
inline
FOURCCMap::FOURCCMap(DWORD fourcc)
{
InitGUID();
SetFOURCC(fourcc);
}
inline
FOURCCMap::FOURCCMap(const GUID * pGuid)
{
InitGUID();
SetFOURCC(pGuid);
}
inline void
FOURCCMap::SetFOURCC(const GUID * pGuid)
{
FOURCCMap * p = (FOURCCMap*) pGuid;
SetFOURCC(p->GetFOURCC());
}
inline void
FOURCCMap::SetFOURCC(DWORD fourcc)
{
Data1 = fourcc;
}
inline DWORD
FOURCCMap::GetFOURCC(void)
{
return Data1;
}
#endif /* __FOURCC__ */
|
