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
|
/*****************************************************************
|
| AP4 - FileByteStream
|
| Copyright 2002-2008 Axiomatic Systems, LLC
|
|
| This file is part of Bento4/AP4 (MP4 Atom Processing Library).
|
| Unless you have obtained Bento4 under a difference license,
| this version of Bento4 is Bento4|GPL.
| Bento4|GPL is free software; you can redistribute it and/or modify
| it under the terms of the GNU General Public License as published by
| the Free Software Foundation; either version 2, or (at your option)
| any later version.
|
| Bento4|GPL 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 General Public License for more details.
|
| You should have received a copy of the GNU General Public License
| along with Bento4|GPL; see the file COPYING. If not, write to the
| Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
| 02111-1307, USA.
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Ap4Types.h"
#include "Ap4ByteStream.h"
#include "Ap4Config.h"
#ifndef _AP4_FILE_BYTE_STREAM_H_
#define _AP4_FILE_BYTE_STREAM_H_
/*----------------------------------------------------------------------
| AP4_FileByteStream
+---------------------------------------------------------------------*/
class AP4_FileByteStream: public AP4_ByteStream
{
public:
// types
typedef enum {
STREAM_MODE_READ = 0,
STREAM_MODE_WRITE = 1,
STREAM_MODE_READ_WRITE = 2
} Mode;
/**
* Create a stream from a file (opened or created).
*
* @param name Name of the file open or create
* @param mode Mode to use for the file
* @param stream Refrence to a pointer where the stream object will
* be returned
* @return AP4_SUCCESS if the file can be opened or created, or an error code if
* it cannot
*/
static AP4_Result Create(const char* name, Mode mode, AP4_ByteStream*& stream);
// constructors
AP4_FileByteStream(AP4_ByteStream* delegate) : m_Delegate(delegate) {}
#if !defined(AP4_CONFIG_NO_EXCEPTIONS)
/**
* @deprecated
*/
AP4_FileByteStream(const char* name, Mode mode);
#endif
// AP4_ByteStream methods
AP4_Result ReadPartial(void* buffer,
AP4_Size bytesToRead,
AP4_Size& bytesRead) {
return m_Delegate->ReadPartial(buffer, bytesToRead, bytesRead);
}
AP4_Result WritePartial(const void* buffer,
AP4_Size bytesToWrite,
AP4_Size& bytesWritten) {
return m_Delegate->WritePartial(buffer, bytesToWrite, bytesWritten);
}
AP4_Result Seek(AP4_Position position) { return m_Delegate->Seek(position); }
AP4_Result Tell(AP4_Position& position) { return m_Delegate->Tell(position); }
AP4_Result GetSize(AP4_LargeSize& size) { return m_Delegate->GetSize(size); }
AP4_Result Flush() { return m_Delegate->Flush(); }
// AP4_Referenceable methods
void AddReference() { m_Delegate->AddReference(); }
void Release() { m_Delegate->Release(); }
protected:
// methods
virtual ~AP4_FileByteStream() {
delete m_Delegate;
}
// members
AP4_ByteStream* m_Delegate;
};
#endif // _AP4_FILE_BYTE_STREAM_H_
|
