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
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
/* 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.
*
* $URL$
* $Id$
*
*/
//
// 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 MOHAWK_QT_PLAYER_H
#define MOHAWK_QT_PLAYER_H
#include "common/scummsys.h"
#include "common/queue.h"
#include "graphics/video/codecs/codec.h"
#include "sound/audiostream.h"
#include "sound/mixer.h"
namespace Common {
class File;
}
namespace Mohawk {
class QueuedAudioStream : public Audio::AudioStream {
public:
QueuedAudioStream(int rate, int channels, bool autofree = true);
~QueuedAudioStream();
int readBuffer(int16 *buffer, const int numSamples);
bool isStereo() const { return _channels == 2; }
int getRate() const { return _rate; }
bool endOfData() const { return _queue.empty(); }
bool endOfStream() const { return _finished; }
void queueAudioStream(Audio::AudioStream *audStream);
void finish() { _finished = true; }
uint32 streamsInQueue() { return _queue.size(); }
private:
bool _autofree;
bool _finished;
int _rate;
int _channels;
Common::Queue<Audio::AudioStream*> _queue;
};
enum ScaleMode {
kScaleNormal = 1,
kScaleHalf = 2,
kScaleQuarter = 4
};
class QTPlayer {
public:
QTPlayer();
virtual ~QTPlayer();
/**
* Returns the width of the video
* @return the width of the video
*/
uint16 getWidth();
/**
* Returns the height of the video
* @return the height of the video
*/
uint16 getHeight();
/**
* Returns the amount of frames in the video
* @return the amount of frames in the video
*/
uint32 getFrameCount();
/**
* Returns the bits per pixel of the video
* @return the bits per pixel of the video
*/
byte getBitsPerPixel();
/**
* Returns the codec tag of the video
* @return the codec tag of the video
*/
uint32 getCodecTag();
/**
* Load a QuickTime video file from a SeekableReadStream
* @param stream the stream to load
*/
bool loadFile(Common::SeekableReadStream* stream);
/**
* Close a QuickTime encoded video file
*/
void closeFile();
/**
* Returns the downscale mode of the video
* @return the downscale mode of the video
*/
ScaleMode getScaleMode();
/**
* Returns the palette of the video
* @return the palette of the video
*/
byte *getPalette() { return _palette; }
/**
* 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; }
int32 getCurFrame() { return _curFrame; }
void addPauseTime(uint32 p) { _lastFrameStart += p; _nextFrameStart += p; }
Graphics::Surface *getNextFrame();
void updateAudioBuffer();
void startAudio();
void stopAudio();
void pauseAudio();
void resumeAudio();
bool needsUpdate();
bool endOfVideo();
void stop();
void reset();
protected:
// This is the file handle from which data is read from. It can be the actual file handle or a decompressed stream.
Common::SeekableReadStream *_fd;
struct MOVatom {
uint32 type;
uint32 offset;
uint32 size;
};
struct ParseTable {
uint32 type;
int (QTPlayer::*func)(MOVatom atom);
};
struct MOVstts {
int count;
int duration;
};
struct MOVstsc {
uint32 first;
uint32 count;
uint32 id;
};
enum CodecType {
CODEC_TYPE_MOV_OTHER,
CODEC_TYPE_VIDEO,
CODEC_TYPE_AUDIO
};
struct MOVStreamContext {
MOVStreamContext() { memset(this, 0, sizeof(MOVStreamContext)); }
~MOVStreamContext() {
delete[] chunk_offsets;
delete[] stts_data;
delete[] ctts_data;
delete[] sample_to_chunk;
delete[] sample_sizes;
delete[] keyframes;
delete extradata;
}
int ffindex; /* the ffmpeg stream id */
int is_ff_stream; /* Is this stream presented to ffmpeg ? i.e. is this an audio or video stream ? */
uint32 next_chunk;
uint32 chunk_count;
uint32 *chunk_offsets;
int stts_count;
MOVstts *stts_data;
int ctts_count;
MOVstts *ctts_data;
int edit_count; /* number of 'edit' (elst atom) */
uint32 sample_to_chunk_sz;
MOVstsc *sample_to_chunk;
int32 sample_to_chunk_index;
int sample_to_time_index;
uint32 sample_to_time_sample;
uint32 sample_to_time_time;
int sample_to_ctime_index;
int sample_to_ctime_sample;
uint32 sample_size;
uint32 sample_count;
uint32 *sample_sizes;
uint32 keyframe_count;
uint32 *keyframes;
int32 time_scale;
int time_rate;
uint32 current_sample;
uint32 left_in_chunk; /* how many samples before next chunk */
uint16 width;
uint16 height;
int codec_type;
uint32 codec_tag;
char codec_name[32];
uint16 bits_per_sample;
uint16 color_table_id;
bool palettized;
Common::SeekableReadStream *extradata;
uint16 stsd_version;
uint16 channels;
uint16 sample_rate;
uint32 samples_per_frame;
uint32 bytes_per_frame;
uint32 nb_frames;
uint32 duration;
uint32 start_time;
ScaleMode scaleMode;
};
const ParseTable *_parseTable;
bool _foundMOOV;
bool _foundMDAT;
uint32 _timeScale;
uint32 _duration;
uint32 _mdatOffset;
uint32 _mdatSize;
uint32 _next_chunk_offset;
MOVStreamContext *_partial;
uint32 _numStreams;
int _ni;
ScaleMode _scaleMode;
MOVStreamContext *_streams[20];
byte _palette[256 * 4];
void initParseTable();
Audio::AudioStream *createAudioStream(Common::SeekableReadStream *stream);
bool checkAudioCodecSupport(uint32 tag);
Common::SeekableReadStream *getNextFramePacket();
void resetInternal();
uint32 getFrameDuration();
QueuedAudioStream *_audStream;
int8 _videoStreamIndex;
int8 _audioStreamIndex;
uint _curAudioChunk;
uint32 _beginOffset;
Graphics::Codec *createCodec(uint32 codecTag, byte bitsPerPixel);
Graphics::Codec *_videoCodec;
bool _noCodecFound;
int32 _curFrame;
uint32 _lastFrameStart, _nextFrameStart; // In 1/100 ms
Audio::SoundHandle _audHandle;
int readDefault(MOVatom atom);
int readLeaf(MOVatom atom);
int readELST(MOVatom atom);
int readHDLR(MOVatom atom);
int readMDAT(MOVatom atom);
int readMDHD(MOVatom atom);
int readMOOV(MOVatom atom);
int readMVHD(MOVatom atom);
int readTKHD(MOVatom atom);
int readTRAK(MOVatom atom);
int readSTCO(MOVatom atom);
int readSTSC(MOVatom atom);
int readSTSD(MOVatom atom);
int readSTSS(MOVatom atom);
int readSTSZ(MOVatom atom);
int readSTTS(MOVatom atom);
int readCMOV(MOVatom atom);
int readWAVE(MOVatom atom);
};
} // End of namespace Mohawk
#endif
|
