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
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
|
/*
** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com
**
** 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
**
** Any non-GPL usage of this software or parts of this software is strictly
** forbidden.
**
** Commercial non-GPL licensing of this software is possible.
** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
**
** $Id: mp4ffint.h,v 1.15 2004/01/14 20:50:22 menno Exp $
**/
#ifndef MP4FF_INTERNAL_H
#define MP4FF_INTERNAL_H
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include "mp4ff_int_types.h"
#ifdef _WIN32
#define ITUNES_DRM
#endif
#define MAX_TRACKS 1024
#define TRACK_UNKNOWN 0
#define TRACK_AUDIO 1
#define TRACK_VIDEO 2
#define TRACK_SYSTEM 3
#define SUBATOMIC 128
/* atoms without subatoms */
#define ATOM_FTYP 129
#define ATOM_MDAT 130
#define ATOM_MVHD 131
#define ATOM_TKHD 132
#define ATOM_TREF 133
#define ATOM_MDHD 134
#define ATOM_VMHD 135
#define ATOM_SMHD 136
#define ATOM_HMHD 137
#define ATOM_STSD 138
#define ATOM_STTS 139
#define ATOM_STSZ 140
#define ATOM_STZ2 141
#define ATOM_STCO 142
#define ATOM_STSC 143
#define ATOM_MP4A 144
#define ATOM_MP4V 145
#define ATOM_MP4S 146
#define ATOM_ESDS 147
#define ATOM_META 148 /* iTunes Metadata box */
#define ATOM_NAME 149 /* iTunes Metadata name box */
#define ATOM_DATA 150 /* iTunes Metadata data box */
#define ATOM_CTTS 151
#define ATOM_FRMA 152
#define ATOM_IVIV 153
#define ATOM_PRIV 154
#define ATOM_UNKNOWN 255
#define ATOM_FREE ATOM_UNKNOWN
#define ATOM_SKIP ATOM_UNKNOWN
/* atoms with subatoms */
#define ATOM_MOOV 1
#define ATOM_TRAK 2
#define ATOM_EDTS 3
#define ATOM_MDIA 4
#define ATOM_MINF 5
#define ATOM_STBL 6
#define ATOM_UDTA 7
#define ATOM_ILST 8 /* iTunes Metadata list */
#define ATOM_TITLE 9
#define ATOM_ARTIST 10
#define ATOM_WRITER 11
#define ATOM_ALBUM 12
#define ATOM_DATE 13
#define ATOM_TOOL 14
#define ATOM_COMMENT 15
#define ATOM_GENRE1 16
#define ATOM_TRACK 17
#define ATOM_DISC 18
#define ATOM_COMPILATION 19
#define ATOM_GENRE2 20
#define ATOM_TEMPO 21
#define ATOM_COVER 22
#define ATOM_DRMS 23
#define ATOM_SINF 24
#define ATOM_SCHI 25
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef _WIN32
#define stricmp strcasecmp
#endif
/* file callback structure */
typedef struct
{
uint32_t (*read)(void *user_data, void *buffer, uint32_t length);
uint32_t (*write)(void *udata, void *buffer, uint32_t length);
uint32_t (*seek)(void *user_data, uint64_t position);
uint32_t (*truncate)(void *user_data);
void *user_data;
} mp4ff_callback_t;
/* metadata tag structure */
typedef struct
{
char *item;
char *value;
} mp4ff_tag_t;
/* metadata list structure */
typedef struct
{
mp4ff_tag_t *tags;
uint32_t count;
} mp4ff_metadata_t;
typedef struct
{
int32_t type;
int32_t channelCount;
int32_t sampleSize;
uint16_t sampleRate;
int32_t audioType;
/* stsd */
int32_t stsd_entry_count;
/* stsz */
int32_t stsz_sample_size;
int32_t stsz_sample_count;
int32_t *stsz_table;
/* stts */
int32_t stts_entry_count;
int32_t *stts_sample_count;
int32_t *stts_sample_delta;
/* stsc */
int32_t stsc_entry_count;
int32_t *stsc_first_chunk;
int32_t *stsc_samples_per_chunk;
int32_t *stsc_sample_desc_index;
/* stsc */
int32_t stco_entry_count;
int32_t *stco_chunk_offset;
/* ctts */
int32_t ctts_entry_count;
int32_t *ctts_sample_count;
int32_t *ctts_sample_offset;
/* esde */
uint8_t *decoderConfig;
int32_t decoderConfigLen;
uint32_t maxBitrate;
uint32_t avgBitrate;
uint32_t timeScale;
uint64_t duration;
#ifdef ITUNES_DRM
/* drms */
void *p_drms;
#endif
} mp4ff_track_t;
/* mp4 main file structure */
typedef struct
{
/* stream to read from */
mp4ff_callback_t *stream;
int64_t current_position;
int32_t moov_read;
uint64_t moov_offset;
uint64_t moov_size;
uint8_t last_atom;
uint64_t file_size;
/* mvhd */
int32_t time_scale;
int32_t duration;
/* incremental track index while reading the file */
int32_t total_tracks;
/* track data */
mp4ff_track_t *track[MAX_TRACKS];
/* metadata */
mp4ff_metadata_t tags;
} mp4ff_t;
/* mp4util.c */
int32_t mp4ff_read_data(mp4ff_t *f, int8_t *data, uint32_t size);
int32_t mp4ff_write_data(mp4ff_t *f, int8_t *data, uint32_t size);
uint64_t mp4ff_read_int64(mp4ff_t *f);
uint32_t mp4ff_read_int32(mp4ff_t *f);
uint32_t mp4ff_read_int24(mp4ff_t *f);
uint16_t mp4ff_read_int16(mp4ff_t *f);
uint8_t mp4ff_read_char(mp4ff_t *f);
int32_t mp4ff_write_int32(mp4ff_t *f,const uint32_t data);
uint32_t mp4ff_read_mp4_descr_length(mp4ff_t *f);
int64_t mp4ff_position(const mp4ff_t *f);
int32_t mp4ff_set_position(mp4ff_t *f, const int64_t position);
int32_t mp4ff_truncate(mp4ff_t * f);
char * mp4ff_read_string(mp4ff_t * f,uint32_t length);
/* mp4atom.c */
static int32_t mp4ff_atom_get_size(const int8_t *data);
static int32_t mp4ff_atom_compare(const int8_t a1, const int8_t b1, const int8_t c1, const int8_t d1,
const int8_t a2, const int8_t b2, const int8_t c2, const int8_t d2);
static uint8_t mp4ff_atom_name_to_type(const int8_t a, const int8_t b, const int8_t c, const int8_t d);
uint64_t mp4ff_atom_read_header(mp4ff_t *f, uint8_t *atom_type, uint8_t *header_size);
static int32_t mp4ff_read_stsz(mp4ff_t *f);
static int32_t mp4ff_read_esds(mp4ff_t *f);
static int32_t mp4ff_read_mp4a(mp4ff_t *f);
static int32_t mp4ff_read_stsd(mp4ff_t *f);
static int32_t mp4ff_read_stsc(mp4ff_t *f);
static int32_t mp4ff_read_stco(mp4ff_t *f);
static int32_t mp4ff_read_stts(mp4ff_t *f);
#ifdef USE_TAGGING
static int32_t mp4ff_read_meta(mp4ff_t *f, const uint64_t size);
#endif
int32_t mp4ff_atom_read(mp4ff_t *f, const int32_t size, const uint8_t atom_type);
/* mp4sample.c */
static int32_t mp4ff_chunk_of_sample(const mp4ff_t *f, const int32_t track, const int32_t sample,
int32_t *chunk_sample, int32_t *chunk);
static int32_t mp4ff_chunk_to_offset(const mp4ff_t *f, const int32_t track, const int32_t chunk);
static int32_t mp4ff_sample_range_size(const mp4ff_t *f, const int32_t track,
const int32_t chunk_sample, const int32_t sample);
static int32_t mp4ff_sample_to_offset(const mp4ff_t *f, const int32_t track, const int32_t sample);
int32_t mp4ff_audio_frame_size(const mp4ff_t *f, const int32_t track, const int32_t sample);
int32_t mp4ff_set_sample_position(mp4ff_t *f, const int32_t track, const int32_t sample);
#ifdef USE_TAGGING
/* mp4meta.c */
static int32_t mp4ff_tag_add_field(mp4ff_metadata_t *tags, const char *item, const char *value);
static int32_t mp4ff_tag_set_field(mp4ff_metadata_t *tags, const char *item, const char *value);
static int32_t mp4ff_set_metadata_name(mp4ff_t *f, const uint8_t atom_type, char **name);
static int32_t mp4ff_parse_tag(mp4ff_t *f, const uint8_t parent_atom_type, const int32_t size);
static int32_t mp4ff_meta_find_by_name(const mp4ff_t *f, const char *item, char **value);
int32_t mp4ff_parse_metadata(mp4ff_t *f, const int32_t size);
int32_t mp4ff_tag_delete(mp4ff_metadata_t *tags);
int32_t mp4ff_meta_get_num_items(const mp4ff_t *f);
int32_t mp4ff_meta_get_by_index(const mp4ff_t *f, uint32_t index,
char **item, char **value);
int32_t mp4ff_meta_get_title(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_artist(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_writer(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_album(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_date(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_tool(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_comment(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_genre(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_track(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_disc(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_compilation(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_tempo(const mp4ff_t *f, char **value);
int32_t mp4ff_meta_get_coverart(const mp4ff_t *f, char **value);
#endif
/* mp4ff.c */
mp4ff_t *mp4ff_open_read(mp4ff_callback_t *f);
#ifdef USE_TAGGING
mp4ff_t *mp4ff_open_edit(mp4ff_callback_t *f);
#endif
void mp4ff_close(mp4ff_t *ff);
/*void mp4ff_track_add(mp4ff_t *f);*/
int32_t parse_sub_atoms(mp4ff_t *f, const uint64_t total_size);
int32_t parse_atoms(mp4ff_t *f);
int32_t mp4ff_get_sample_duration(const mp4ff_t *f, const int32_t track, const int32_t sample);
int64_t mp4ff_get_sample_position(const mp4ff_t *f, const int32_t track, const int32_t sample);
int32_t mp4ff_get_sample_offset(const mp4ff_t *f, const int32_t track, const int32_t sample);
int32_t mp4ff_find_sample(const mp4ff_t *f, const int32_t track, const int64_t offset,int32_t * toskip);
int32_t mp4ff_read_sample(mp4ff_t *f, const int32_t track, const int32_t sample,
uint8_t **audio_buffer, uint32_t *bytes);
int32_t mp4ff_get_decoder_config(const mp4ff_t *f, const int32_t track,
uint8_t** ppBuf, uint32_t* pBufSize);
int32_t mp4ff_total_tracks(const mp4ff_t *f);
int32_t mp4ff_time_scale(const mp4ff_t *f, const int32_t track);
int32_t mp4ff_num_samples(const mp4ff_t *f, const int32_t track);
uint32_t mp4ff_meta_genre_to_index(const char * genrestr);//returns 1-based index, 0 if not found
const char * mp4ff_meta_index_to_genre(uint32_t idx);//returns pointer to static string
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
|
