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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
//
// Heavily based on ffmpeg code.
//
// Copyright (c) 2001 Fabrice Bellard.
// First version by Francois Revol revol@free.fr
// Seek function by Gael Chardon gael.dev@4now.net
//
#ifndef COMMON_QUICKTIME_H
#define COMMON_QUICKTIME_H
#include "common/array.h"
#include "common/scummsys.h"
#include "common/stream.h"
#include "common/rational.h"
namespace Common {
class MacResManager;
/**
* Parser for QuickTime/MPEG-4 files.
*
* File parser used in engines:
* - groovie
* - mohawk
* - sci
*/
class QuickTimeParser {
public:
QuickTimeParser();
virtual ~QuickTimeParser();
/**
* Load a QuickTime file
* @param filename the filename to load
*/
bool parseFile(const String &filename);
/**
* Load a QuickTime file from a SeekableReadStream
* @param stream the stream to load
* @param disposeFileHandle whether to delete the stream after use
*/
bool parseStream(SeekableReadStream *stream, DisposeAfterUse::Flag disposeFileHandle = DisposeAfterUse::YES);
/**
* Close a QuickTime file
*/
void close();
/**
* Set the beginning offset of the video so we can modify the offsets in the stco
* atom of videos inside the Mohawk archives
* @param the beginning offset of the video
*/
void setChunkBeginOffset(uint32 offset) { _beginOffset = offset; }
bool isOpen() const { return _fd != 0; }
protected:
// This is the file handle from which data is read from. It can be the actual file handle or a decompressed stream.
SeekableReadStream *_fd;
DisposeAfterUse::Flag _disposeFileHandle;
struct Atom {
uint32 type;
uint32 offset;
uint32 size;
};
struct ParseTable {
int (QuickTimeParser::*func)(Atom atom);
uint32 type;
};
struct TimeToSampleEntry {
int count;
int duration;
};
struct SampleToChunkEntry {
uint32 first;
uint32 count;
uint32 id;
};
struct EditListEntry {
uint32 trackDuration;
uint32 timeOffset;
int32 mediaTime;
Rational mediaRate;
};
struct Track;
class SampleDesc {
public:
SampleDesc(Track *parentTrack, uint32 codecTag);
virtual ~SampleDesc() {}
uint32 getCodecTag() const { return _codecTag; }
protected:
Track *_parentTrack;
uint32 _codecTag;
};
enum CodecType {
CODEC_TYPE_MOV_OTHER,
CODEC_TYPE_VIDEO,
CODEC_TYPE_AUDIO
};
struct Track {
Track();
~Track();
uint32 chunkCount;
uint32 *chunkOffsets;
int timeToSampleCount;
TimeToSampleEntry *timeToSample;
uint32 sampleToChunkCount;
SampleToChunkEntry *sampleToChunk;
uint32 sampleSize;
uint32 sampleCount;
uint32 *sampleSizes;
uint32 keyframeCount;
uint32 *keyframes;
int32 timeScale;
uint16 width;
uint16 height;
CodecType codecType;
Array<SampleDesc *> sampleDescs;
uint32 editCount;
EditListEntry *editList;
SeekableReadStream *extraData;
uint32 frameCount;
uint32 duration;
uint32 mediaDuration;
uint32 startTime;
Rational scaleFactorX;
Rational scaleFactorY;
byte objectTypeMP4;
};
virtual SampleDesc *readSampleDesc(Track *track, uint32 format) = 0;
const ParseTable *_parseTable;
bool _foundMOOV;
uint32 _timeScale;
uint32 _duration;
Rational _scaleFactorX;
Rational _scaleFactorY;
Array<Track *> _tracks;
uint32 _beginOffset;
MacResManager *_resFork;
void initParseTable();
void init();
int readDefault(Atom atom);
int readLeaf(Atom atom);
int readELST(Atom atom);
int readHDLR(Atom atom);
int readMDHD(Atom atom);
int readMOOV(Atom atom);
int readMVHD(Atom atom);
int readTKHD(Atom atom);
int readTRAK(Atom atom);
int readSTCO(Atom atom);
int readSTSC(Atom atom);
int readSTSD(Atom atom);
int readSTSS(Atom atom);
int readSTSZ(Atom atom);
int readSTTS(Atom atom);
int readCMOV(Atom atom);
int readWAVE(Atom atom);
int readESDS(Atom atom);
};
} // End of namespace Common
#endif
|
