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MP4: support for gnre atom
[vlc/solaris.git] / modules / demux / mp4 / libmp4.c
blob4d3dc241d12bdb566d67a785957af096bc83483f
1 /*****************************************************************************
2 * libmp4.c : LibMP4 library for mp4 module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
5 * $Id$
6 *
7 * Author: Laurent Aimar <fenrir@via.ecp.fr>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
23 #ifdef HAVE_CONFIG_H
24 # include "config.h"
25 #endif
26
27 #include <vlc_common.h>
28
29
30 #include <vlc_demux.h>
31
32 #ifdef HAVE_ZLIB_H
33 # include <zlib.h> /* for compressed moov */
34 #endif
35
36 #include "libmp4.h"
37 #include "drms.h"
38
39 /*****************************************************************************
40 * Here are defined some macro to make life simpler but before using it
41 * *look* at the code.
42 *
43 *****************************************************************************/
44 #define MP4_BOX_HEADERSIZE( p_box ) \
45 ( 8 + ( p_box->i_shortsize == 1 ? 8 : 0 ) \
46 + ( p_box->i_type == FOURCC_uuid ? 16 : 0 ) )
47
48 #define MP4_GETX_PRIVATE(dst, code, size) do { \
49 if( (i_read) >= (size) ) { dst = (code); p_peek += (size); } \
50 else { dst = 0; } \
51 i_read -= (size); \
52 } while(0)
53
54 #define MP4_GET1BYTE( dst ) MP4_GETX_PRIVATE( dst, *p_peek, 1 )
55 #define MP4_GET2BYTES( dst ) MP4_GETX_PRIVATE( dst, GetWBE(p_peek), 2 )
56 #define MP4_GET3BYTES( dst ) MP4_GETX_PRIVATE( dst, Get24bBE(p_peek), 3 )
57 #define MP4_GET4BYTES( dst ) MP4_GETX_PRIVATE( dst, GetDWBE(p_peek), 4 )
58 #define MP4_GET8BYTES( dst ) MP4_GETX_PRIVATE( dst, GetQWBE(p_peek), 8 )
59 #define MP4_GETFOURCC( dst ) MP4_GETX_PRIVATE( dst, \
60 VLC_FOURCC(p_peek[0],p_peek[1],p_peek[2],p_peek[3]), 4)
61
62 #define MP4_GETVERSIONFLAGS( p_void ) \
63 MP4_GET1BYTE( p_void->i_version ); \
64 MP4_GET3BYTES( p_void->i_flags )
65
66 #define MP4_GETSTRINGZ( p_str ) \
67 if( (i_read > 0) && (p_peek[0]) ) \
68 { \
69 const int __i_copy__ = strnlen( (char*)p_peek, i_read-1 ); \
70 p_str = malloc( __i_copy__+1 ); \
71 if( p_str ) \
72 { \
73 memcpy( p_str, p_peek, __i_copy__ ); \
74 p_str[__i_copy__] = 0; \
75 } \
76 p_peek += __i_copy__ + 1; \
77 i_read -= __i_copy__ + 1; \
78 } \
79 else \
80 { \
81 p_str = NULL; \
82 }
83
84 #define MP4_READBOX_ENTER( MP4_Box_data_TYPE_t ) \
85 int64_t i_read = p_box->i_size; \
86 uint8_t *p_peek, *p_buff; \
87 int i_actually_read; \
88 if( !( p_peek = p_buff = malloc( i_read ) ) ) \
89 { \
90 return( 0 ); \
91 } \
92 i_actually_read = stream_Read( p_stream, p_peek, i_read ); \
93 if( i_actually_read < 0 || (int64_t)i_actually_read < i_read )\
94 { \
95 free( p_buff ); \
96 return( 0 ); \
97 } \
98 p_peek += MP4_BOX_HEADERSIZE( p_box ); \
99 i_read -= MP4_BOX_HEADERSIZE( p_box ); \
100 if( !( p_box->data.p_data = calloc( 1, sizeof( MP4_Box_data_TYPE_t ) ) ) ) \
101 { \
102 free( p_buff ); \
103 return( 0 ); \
104 }
105
106 #define MP4_READBOX_EXIT( i_code ) \
107 do \
108 { \
109 free( p_buff ); \
110 if( i_read < 0 ) \
111 msg_Warn( p_stream, "Not enough data" ); \
112 return( i_code ); \
113 } while (0)
114
115
116 /* Some assumptions:
117 * The input method HAVE to be seekable
118
119 */
120
121 /* This macro is used when we want to printf the box type
122 * APPLE annotation box is :
123 * either 0xA9 + 24-bit ASCII text string (and 0xA9 isn't printable)
124 * either 32-bit ASCII text string
125 */
126 #define MP4_BOX_TYPE_ASCII() ( ((char*)&p_box->i_type)[0] != (char)0xA9 )
127
128 static uint32_t Get24bBE( const uint8_t *p )
129 {
130 return( ( p[0] <<16 ) + ( p[1] <<8 ) + p[2] );
131 }
132
133 static void GetUUID( UUID_t *p_uuid, const uint8_t *p_buff )
134 {
135 memcpy( p_uuid, p_buff, 16 );
136 }
137
138 static void CreateUUID( UUID_t *p_uuid, uint32_t i_fourcc )
139 {
140 /* made by 0xXXXXXXXX-0011-0010-8000-00aa00389b71
141 where XXXXXXXX is the fourcc */
142 /* FIXME implement this */
143 (void)p_uuid;
144 (void)i_fourcc;
145 }
146
147 /* some functions for mp4 encoding of variables */
148
149 static void MP4_ConvertDate2Str( char *psz, uint64_t i_date )
150 {
151 int i_day;
152 int i_hour;
153 int i_min;
154 int i_sec;
155
156 /* date begin at 1 jan 1904 */
157 i_date += ((INT64_C(1904) * 365) + 17) * 24 * 60 * 60;
158
159 i_day = i_date / ( 60*60*24);
160 i_hour = ( i_date /( 60*60 ) ) % 60;
161 i_min = ( i_date / 60 ) % 60;
162 i_sec = i_date % 60;
163 sprintf( psz, "%dd-%2.2dh:%2.2dm:%2.2ds", i_day, i_hour, i_min, i_sec );
164 }
165
166 /*****************************************************************************
167 * Some prototypes.
168 *****************************************************************************/
169 static MP4_Box_t *MP4_ReadBox( stream_t *p_stream, MP4_Box_t *p_father );
170
171
172 /*****************************************************************************
173 * MP4_ReadBoxCommon : Load only common parameters for all boxes
174 *****************************************************************************
175 * p_box need to be an already allocated MP4_Box_t, and all data
176 * will only be peek not read
177 *
178 * RETURN : 0 if it fail, 1 otherwise
179 *****************************************************************************/
180 int MP4_ReadBoxCommon( stream_t *p_stream, MP4_Box_t *p_box )
181 {
182 int i_read;
183 const uint8_t *p_peek;
184
185 if( ( ( i_read = stream_Peek( p_stream, &p_peek, 32 ) ) < 8 ) )
186 {
187 return 0;
188 }
189 p_box->i_pos = stream_Tell( p_stream );
190
191 p_box->data.p_data = NULL;
192 p_box->p_father = NULL;
193 p_box->p_first = NULL;
194 p_box->p_last = NULL;
195 p_box->p_next = NULL;
196
197 MP4_GET4BYTES( p_box->i_shortsize );
198 MP4_GETFOURCC( p_box->i_type );
199
200 /* Now special case */
201
202 if( p_box->i_shortsize == 1 )
203 {
204 /* get the true size on 64 bits */
205 MP4_GET8BYTES( p_box->i_size );
206 }
207 else
208 {
209 p_box->i_size = p_box->i_shortsize;
210 /* XXX size of 0 means that the box extends to end of file */
211 }
212
213 if( p_box->i_type == FOURCC_uuid )
214 {
215 /* get extented type on 16 bytes */
216 GetUUID( &p_box->i_uuid, p_peek );
217 p_peek += 16; i_read -= 16;
218 }
219 else
220 {
221 CreateUUID( &p_box->i_uuid, p_box->i_type );
222 }
223 #ifdef MP4_VERBOSE
224 if( p_box->i_size )
225 {
226 if MP4_BOX_TYPE_ASCII()
227 msg_Dbg( p_stream, "found Box: %4.4s size %"PRId64,
228 (char*)&p_box->i_type, p_box->i_size );
229 else
230 msg_Dbg( p_stream, "found Box: c%3.3s size %"PRId64,
231 (char*)&p_box->i_type+1, p_box->i_size );
232 }
233 #endif
234
235 return 1;
236 }
237
238 /*****************************************************************************
239 * MP4_NextBox : Go to the next box
240 *****************************************************************************
241 * if p_box == NULL, go to the next box in which we are( at the begining ).
242 *****************************************************************************/
243 static int MP4_NextBox( stream_t *p_stream, MP4_Box_t *p_box )
244 {
245 MP4_Box_t box;
246
247 if( !p_box )
248 {
249 MP4_ReadBoxCommon( p_stream, &box );
250 p_box = &box;
251 }
252
253 if( !p_box->i_size )
254 {
255 return 2; /* Box with infinite size */
256 }
257
258 if( p_box->p_father )
259 {
260 const off_t i_box_end = p_box->i_size + p_box->i_pos;
261 const off_t i_father_end = p_box->p_father->i_size + p_box->p_father->i_pos;
262
263 /* check if it's within p-father */
264 if( i_box_end >= i_father_end )
265 {
266 if( i_box_end > i_father_end )
267 msg_Dbg( p_stream, "out of bound child" );
268 return 0; /* out of bound */
269 }
270 }
271 if( stream_Seek( p_stream, p_box->i_size + p_box->i_pos ) )
272 {
273 return 0;
274 }
275
276 return 1;
277 }
278
279 /*****************************************************************************
280 * For all known box a loader is given,
281 * XXX: all common struct have to be already read by MP4_ReadBoxCommon
282 * after called one of theses functions, file position is unknown
283 * you need to call MP4_GotoBox to go where you want
284 *****************************************************************************/
285 static int MP4_ReadBoxContainerRaw( stream_t *p_stream, MP4_Box_t *p_container )
286 {
287 MP4_Box_t *p_box;
288
289 if( stream_Tell( p_stream ) + 8 >
290 (off_t)(p_container->i_pos + p_container->i_size) )
291 {
292 /* there is no box to load */
293 return 0;
294 }
295
296 do
297 {
298 if( ( p_box = MP4_ReadBox( p_stream, p_container ) ) == NULL ) break;
299
300 /* chain this box with the father and the other at same level */
301 if( !p_container->p_first ) p_container->p_first = p_box;
302 else p_container->p_last->p_next = p_box;
303 p_container->p_last = p_box;
304
305 } while( MP4_NextBox( p_stream, p_box ) == 1 );
306
307 return 1;
308 }
309
310 static int MP4_ReadBoxContainer( stream_t *p_stream, MP4_Box_t *p_container )
311 {
312 if( p_container->i_size <= (size_t)MP4_BOX_HEADERSIZE(p_container ) + 8 )
313 {
314 /* container is empty, 8 stand for the first header in this box */
315 return 1;
316 }
317
318 /* enter box */
319 stream_Seek( p_stream, p_container->i_pos +
320 MP4_BOX_HEADERSIZE( p_container ) );
321
322 return MP4_ReadBoxContainerRaw( p_stream, p_container );
323 }
324
325 static void MP4_FreeBox_Common( MP4_Box_t *p_box )
326 {
327 /* Up to now do nothing */
328 (void)p_box;
329 }
330
331 static int MP4_ReadBoxSkip( stream_t *p_stream, MP4_Box_t *p_box )
332 {
333 /* XXX sometime moov is hiden in a free box */
334 if( p_box->p_father &&
335 p_box->p_father->i_type == VLC_FOURCC( 'r', 'o', 'o', 't' ) &&
336 p_box->i_type == FOURCC_free )
337 {
338 const uint8_t *p_peek;
339 int i_read;
340 vlc_fourcc_t i_fcc;
341
342 i_read = stream_Peek( p_stream, &p_peek, 44 );
343
344 p_peek += MP4_BOX_HEADERSIZE( p_box ) + 4;
345 i_read -= MP4_BOX_HEADERSIZE( p_box ) + 4;
346
347 if( i_read >= 8 )
348 {
349 i_fcc = VLC_FOURCC( p_peek[0], p_peek[1], p_peek[2], p_peek[3] );
350
351 if( i_fcc == FOURCC_cmov || i_fcc == FOURCC_mvhd )
352 {
353 msg_Warn( p_stream, "detected moov hidden in a free box ..." );
354
355 p_box->i_type = FOURCC_foov;
356 return MP4_ReadBoxContainer( p_stream, p_box );
357 }
358 }
359 }
360
361 /* Nothing to do */
362 #ifdef MP4_VERBOSE
363 if MP4_BOX_TYPE_ASCII()
364 msg_Dbg( p_stream, "skip box: \"%4.4s\"", (char*)&p_box->i_type );
365 else
366 msg_Dbg( p_stream, "skip box: \"c%3.3s\"", (char*)&p_box->i_type+1 );
367 #endif
368 return 1;
369 }
370
371 static int MP4_ReadBox_ftyp( stream_t *p_stream, MP4_Box_t *p_box )
372 {
373 MP4_READBOX_ENTER( MP4_Box_data_ftyp_t );
374
375 MP4_GETFOURCC( p_box->data.p_ftyp->i_major_brand );
376 MP4_GET4BYTES( p_box->data.p_ftyp->i_minor_version );
377
378 if( ( p_box->data.p_ftyp->i_compatible_brands_count = i_read / 4 ) )
379 {
380 unsigned int i;
381 uint32_t *tab = p_box->data.p_ftyp->i_compatible_brands =
382 calloc( p_box->data.p_ftyp->i_compatible_brands_count,
383 sizeof(uint32_t));
384
385 if( tab == NULL )
386 MP4_READBOX_EXIT( 0 );
387
388 for( i =0; i < p_box->data.p_ftyp->i_compatible_brands_count; i++ )
389 {
390 MP4_GETFOURCC( tab[i] );
391 }
392 }
393 else
394 {
395 p_box->data.p_ftyp->i_compatible_brands = NULL;
396 }
397
398 MP4_READBOX_EXIT( 1 );
399 }
400
401 static void MP4_FreeBox_ftyp( MP4_Box_t *p_box )
402 {
403 FREENULL( p_box->data.p_ftyp->i_compatible_brands );
404 }
405
406
407 static int MP4_ReadBox_mvhd( stream_t *p_stream, MP4_Box_t *p_box )
408 {
409 unsigned int i;
410 #ifdef MP4_VERBOSE
411 char s_creation_time[128];
412 char s_modification_time[128];
413 char s_duration[128];
414 #endif
415 MP4_READBOX_ENTER( MP4_Box_data_mvhd_t );
416
417 MP4_GETVERSIONFLAGS( p_box->data.p_mvhd );
418
419 if( p_box->data.p_mvhd->i_version )
420 {
421 MP4_GET8BYTES( p_box->data.p_mvhd->i_creation_time );
422 MP4_GET8BYTES( p_box->data.p_mvhd->i_modification_time );
423 MP4_GET4BYTES( p_box->data.p_mvhd->i_timescale );
424 MP4_GET8BYTES( p_box->data.p_mvhd->i_duration );
425 }
426 else
427 {
428 MP4_GET4BYTES( p_box->data.p_mvhd->i_creation_time );
429 MP4_GET4BYTES( p_box->data.p_mvhd->i_modification_time );
430 MP4_GET4BYTES( p_box->data.p_mvhd->i_timescale );
431 MP4_GET4BYTES( p_box->data.p_mvhd->i_duration );
432 }
433 MP4_GET4BYTES( p_box->data.p_mvhd->i_rate );
434 MP4_GET2BYTES( p_box->data.p_mvhd->i_volume );
435 MP4_GET2BYTES( p_box->data.p_mvhd->i_reserved1 );
436
437
438 for( i = 0; i < 2; i++ )
439 {
440 MP4_GET4BYTES( p_box->data.p_mvhd->i_reserved2[i] );
441 }
442 for( i = 0; i < 9; i++ )
443 {
444 MP4_GET4BYTES( p_box->data.p_mvhd->i_matrix[i] );
445 }
446 for( i = 0; i < 6; i++ )
447 {
448 MP4_GET4BYTES( p_box->data.p_mvhd->i_predefined[i] );
449 }
450
451 MP4_GET4BYTES( p_box->data.p_mvhd->i_next_track_id );
452
453
454 #ifdef MP4_VERBOSE
455 MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->i_creation_time );
456 MP4_ConvertDate2Str( s_modification_time,
457 p_box->data.p_mvhd->i_modification_time );
458 if( p_box->data.p_mvhd->i_rate )
459 {
460 MP4_ConvertDate2Str( s_duration,
461 p_box->data.p_mvhd->i_duration / p_box->data.p_mvhd->i_rate );
462 }
463 else
464 {
465 s_duration[0] = 0;
466 }
467 msg_Dbg( p_stream, "read box: \"mvhd\" creation %s modification %s time scale %d duration %s rate %f volume %f next track id %d",
468 s_creation_time,
469 s_modification_time,
470 (uint32_t)p_box->data.p_mvhd->i_timescale,
471 s_duration,
472 (float)p_box->data.p_mvhd->i_rate / (1<<16 ),
473 (float)p_box->data.p_mvhd->i_volume / 256 ,
474 (uint32_t)p_box->data.p_mvhd->i_next_track_id );
475 #endif
476 MP4_READBOX_EXIT( 1 );
477 }
478
479 static int MP4_ReadBox_tkhd( stream_t *p_stream, MP4_Box_t *p_box )
480 {
481 unsigned int i;
482 #ifdef MP4_VERBOSE
483 char s_creation_time[128];
484 char s_modification_time[128];
485 char s_duration[128];
486 #endif
487 MP4_READBOX_ENTER( MP4_Box_data_tkhd_t );
488
489 MP4_GETVERSIONFLAGS( p_box->data.p_tkhd );
490
491 if( p_box->data.p_tkhd->i_version )
492 {
493 MP4_GET8BYTES( p_box->data.p_tkhd->i_creation_time );
494 MP4_GET8BYTES( p_box->data.p_tkhd->i_modification_time );
495 MP4_GET4BYTES( p_box->data.p_tkhd->i_track_ID );
496 MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved );
497 MP4_GET8BYTES( p_box->data.p_tkhd->i_duration );
498 }
499 else
500 {
501 MP4_GET4BYTES( p_box->data.p_tkhd->i_creation_time );
502 MP4_GET4BYTES( p_box->data.p_tkhd->i_modification_time );
503 MP4_GET4BYTES( p_box->data.p_tkhd->i_track_ID );
504 MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved );
505 MP4_GET4BYTES( p_box->data.p_tkhd->i_duration );
506 }
507
508 for( i = 0; i < 2; i++ )
509 {
510 MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved2[i] );
511 }
512 MP4_GET2BYTES( p_box->data.p_tkhd->i_layer );
513 MP4_GET2BYTES( p_box->data.p_tkhd->i_predefined );
514 MP4_GET2BYTES( p_box->data.p_tkhd->i_volume );
515 MP4_GET2BYTES( p_box->data.p_tkhd->i_reserved3 );
516
517 for( i = 0; i < 9; i++ )
518 {
519 MP4_GET4BYTES( p_box->data.p_tkhd->i_matrix[i] );
520 }
521 MP4_GET4BYTES( p_box->data.p_tkhd->i_width );
522 MP4_GET4BYTES( p_box->data.p_tkhd->i_height );
523
524 #ifdef MP4_VERBOSE
525 MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->i_creation_time );
526 MP4_ConvertDate2Str( s_modification_time, p_box->data.p_mvhd->i_modification_time );
527 MP4_ConvertDate2Str( s_duration, p_box->data.p_mvhd->i_duration );
528
529 msg_Dbg( p_stream, "read box: \"tkhd\" creation %s modification %s duration %s track ID %d layer %d volume %f width %f height %f",
530 s_creation_time,
531 s_modification_time,
532 s_duration,
533 p_box->data.p_tkhd->i_track_ID,
534 p_box->data.p_tkhd->i_layer,
535 (float)p_box->data.p_tkhd->i_volume / 256 ,
536 (float)p_box->data.p_tkhd->i_width / 65536,
537 (float)p_box->data.p_tkhd->i_height / 65536 );
538 #endif
539 MP4_READBOX_EXIT( 1 );
540 }
541
542
543 static int MP4_ReadBox_mdhd( stream_t *p_stream, MP4_Box_t *p_box )
544 {
545 unsigned int i;
546 uint16_t i_language;
547 #ifdef MP4_VERBOSE
548 char s_creation_time[128];
549 char s_modification_time[128];
550 char s_duration[128];
551 #endif
552 MP4_READBOX_ENTER( MP4_Box_data_mdhd_t );
553
554 MP4_GETVERSIONFLAGS( p_box->data.p_mdhd );
555
556 if( p_box->data.p_mdhd->i_version )
557 {
558 MP4_GET8BYTES( p_box->data.p_mdhd->i_creation_time );
559 MP4_GET8BYTES( p_box->data.p_mdhd->i_modification_time );
560 MP4_GET4BYTES( p_box->data.p_mdhd->i_timescale );
561 MP4_GET8BYTES( p_box->data.p_mdhd->i_duration );
562 }
563 else
564 {
565 MP4_GET4BYTES( p_box->data.p_mdhd->i_creation_time );
566 MP4_GET4BYTES( p_box->data.p_mdhd->i_modification_time );
567 MP4_GET4BYTES( p_box->data.p_mdhd->i_timescale );
568 MP4_GET4BYTES( p_box->data.p_mdhd->i_duration );
569 }
570 p_box->data.p_mdhd->i_language_code = i_language = GetWBE( p_peek );
571 for( i = 0; i < 3; i++ )
572 {
573 p_box->data.p_mdhd->i_language[i] =
574 ( ( i_language >> ( (2-i)*5 ) )&0x1f ) + 0x60;
575 }
576
577 MP4_GET2BYTES( p_box->data.p_mdhd->i_predefined );
578
579 #ifdef MP4_VERBOSE
580 MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mdhd->i_creation_time );
581 MP4_ConvertDate2Str( s_modification_time, p_box->data.p_mdhd->i_modification_time );
582 MP4_ConvertDate2Str( s_duration, p_box->data.p_mdhd->i_duration );
583 msg_Dbg( p_stream, "read box: \"mdhd\" creation %s modification %s time scale %d duration %s language %c%c%c",
584 s_creation_time,
585 s_modification_time,
586 (uint32_t)p_box->data.p_mdhd->i_timescale,
587 s_duration,
588 p_box->data.p_mdhd->i_language[0],
589 p_box->data.p_mdhd->i_language[1],
590 p_box->data.p_mdhd->i_language[2] );
591 #endif
592 MP4_READBOX_EXIT( 1 );
593 }
594
595
596 static int MP4_ReadBox_hdlr( stream_t *p_stream, MP4_Box_t *p_box )
597 {
598 int32_t i_reserved;
599
600 MP4_READBOX_ENTER( MP4_Box_data_hdlr_t );
601
602 MP4_GETVERSIONFLAGS( p_box->data.p_hdlr );
603
604 MP4_GETFOURCC( p_box->data.p_hdlr->i_predefined );
605 MP4_GETFOURCC( p_box->data.p_hdlr->i_handler_type );
606
607 MP4_GET4BYTES( i_reserved );
608 MP4_GET4BYTES( i_reserved );
609 MP4_GET4BYTES( i_reserved );
610 p_box->data.p_hdlr->psz_name = NULL;
611
612 if( i_read > 0 )
613 {
614 uint8_t *psz = p_box->data.p_hdlr->psz_name = malloc( i_read + 1 );
615 if( psz == NULL )
616 MP4_READBOX_EXIT( 0 );
617
618 /* Yes, I love .mp4 :( */
619 if( p_box->data.p_hdlr->i_predefined == VLC_FOURCC( 'm', 'h', 'l', 'r' ) )
620 {
621 uint8_t i_len;
622 int i_copy;
623
624 MP4_GET1BYTE( i_len );
625 i_copy = __MIN( i_read, i_len );
626
627 memcpy( psz, p_peek, i_copy );
628 p_box->data.p_hdlr->psz_name[i_copy] = '\0';
629 }
630 else
631 {
632 memcpy( psz, p_peek, i_read );
633 p_box->data.p_hdlr->psz_name[i_read] = '\0';
634 }
635 }
636
637 #ifdef MP4_VERBOSE
638 msg_Dbg( p_stream, "read box: \"hdlr\" handler type %4.4s name %s",
639 (char*)&p_box->data.p_hdlr->i_handler_type,
640 p_box->data.p_hdlr->psz_name );
641
642 #endif
643 MP4_READBOX_EXIT( 1 );
644 }
645
646 static void MP4_FreeBox_hdlr( MP4_Box_t *p_box )
647 {
648 FREENULL( p_box->data.p_hdlr->psz_name );
649 }
650
651 static int MP4_ReadBox_vmhd( stream_t *p_stream, MP4_Box_t *p_box )
652 {
653 unsigned int i;
654
655 MP4_READBOX_ENTER( MP4_Box_data_vmhd_t );
656
657 MP4_GETVERSIONFLAGS( p_box->data.p_vmhd );
658
659 MP4_GET2BYTES( p_box->data.p_vmhd->i_graphics_mode );
660 for( i = 0; i < 3; i++ )
661 {
662 MP4_GET2BYTES( p_box->data.p_vmhd->i_opcolor[i] );
663 }
664
665 #ifdef MP4_VERBOSE
666 msg_Dbg( p_stream, "read box: \"vmhd\" graphics-mode %d opcolor (%d, %d, %d)",
667 p_box->data.p_vmhd->i_graphics_mode,
668 p_box->data.p_vmhd->i_opcolor[0],
669 p_box->data.p_vmhd->i_opcolor[1],
670 p_box->data.p_vmhd->i_opcolor[2] );
671 #endif
672 MP4_READBOX_EXIT( 1 );
673 }
674
675 static int MP4_ReadBox_smhd( stream_t *p_stream, MP4_Box_t *p_box )
676 {
677 MP4_READBOX_ENTER( MP4_Box_data_smhd_t );
678
679 MP4_GETVERSIONFLAGS( p_box->data.p_smhd );
680
681
682
683 MP4_GET2BYTES( p_box->data.p_smhd->i_balance );
684
685 MP4_GET2BYTES( p_box->data.p_smhd->i_reserved );
686
687 #ifdef MP4_VERBOSE
688 msg_Dbg( p_stream, "read box: \"smhd\" balance %f",
689 (float)p_box->data.p_smhd->i_balance / 256 );
690 #endif
691 MP4_READBOX_EXIT( 1 );
692 }
693
694
695 static int MP4_ReadBox_hmhd( stream_t *p_stream, MP4_Box_t *p_box )
696 {
697 MP4_READBOX_ENTER( MP4_Box_data_hmhd_t );
698
699 MP4_GETVERSIONFLAGS( p_box->data.p_hmhd );
700
701 MP4_GET2BYTES( p_box->data.p_hmhd->i_max_PDU_size );
702 MP4_GET2BYTES( p_box->data.p_hmhd->i_avg_PDU_size );
703
704 MP4_GET4BYTES( p_box->data.p_hmhd->i_max_bitrate );
705 MP4_GET4BYTES( p_box->data.p_hmhd->i_avg_bitrate );
706
707 MP4_GET4BYTES( p_box->data.p_hmhd->i_reserved );
708
709 #ifdef MP4_VERBOSE
710 msg_Dbg( p_stream, "read box: \"hmhd\" maxPDU-size %d avgPDU-size %d max-bitrate %d avg-bitrate %d",
711 p_box->data.p_hmhd->i_max_PDU_size,
712 p_box->data.p_hmhd->i_avg_PDU_size,
713 p_box->data.p_hmhd->i_max_bitrate,
714 p_box->data.p_hmhd->i_avg_bitrate );
715 #endif
716 MP4_READBOX_EXIT( 1 );
717 }
718
719 static int MP4_ReadBox_url( stream_t *p_stream, MP4_Box_t *p_box )
720 {
721 MP4_READBOX_ENTER( MP4_Box_data_url_t );
722
723 MP4_GETVERSIONFLAGS( p_box->data.p_url );
724 MP4_GETSTRINGZ( p_box->data.p_url->psz_location );
725
726 #ifdef MP4_VERBOSE
727 msg_Dbg( p_stream, "read box: \"url\" url: %s",
728 p_box->data.p_url->psz_location );
729
730 #endif
731 MP4_READBOX_EXIT( 1 );
732 }
733
734
735 static void MP4_FreeBox_url( MP4_Box_t *p_box )
736 {
737 FREENULL( p_box->data.p_url->psz_location );
738 }
739
740 static int MP4_ReadBox_urn( stream_t *p_stream, MP4_Box_t *p_box )
741 {
742 MP4_READBOX_ENTER( MP4_Box_data_urn_t );
743
744 MP4_GETVERSIONFLAGS( p_box->data.p_urn );
745
746 MP4_GETSTRINGZ( p_box->data.p_urn->psz_name );
747 MP4_GETSTRINGZ( p_box->data.p_urn->psz_location );
748
749 #ifdef MP4_VERBOSE
750 msg_Dbg( p_stream, "read box: \"urn\" name %s location %s",
751 p_box->data.p_urn->psz_name,
752 p_box->data.p_urn->psz_location );
753 #endif
754 MP4_READBOX_EXIT( 1 );
755 }
756 static void MP4_FreeBox_urn( MP4_Box_t *p_box )
757 {
758 FREENULL( p_box->data.p_urn->psz_name );
759 FREENULL( p_box->data.p_urn->psz_location );
760 }
761
762
763 static int MP4_ReadBox_dref( stream_t *p_stream, MP4_Box_t *p_box )
764 {
765 MP4_READBOX_ENTER( MP4_Box_data_dref_t );
766
767 MP4_GETVERSIONFLAGS( p_box->data.p_dref );
768
769 MP4_GET4BYTES( p_box->data.p_dref->i_entry_count );
770
771 stream_Seek( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 8 );
772 MP4_ReadBoxContainerRaw( p_stream, p_box );
773
774 #ifdef MP4_VERBOSE
775 msg_Dbg( p_stream, "read box: \"dref\" entry-count %d",
776 p_box->data.p_dref->i_entry_count );
777
778 #endif
779 MP4_READBOX_EXIT( 1 );
780 }
781
782 static void MP4_FreeBox_stts( MP4_Box_t *p_box )
783 {
784 FREENULL( p_box->data.p_stts->i_sample_count );
785 FREENULL( p_box->data.p_stts->i_sample_delta );
786 }
787
788 static int MP4_ReadBox_stts( stream_t *p_stream, MP4_Box_t *p_box )
789 {
790 unsigned int i;
791 MP4_READBOX_ENTER( MP4_Box_data_stts_t );
792
793 MP4_GETVERSIONFLAGS( p_box->data.p_stts );
794 MP4_GET4BYTES( p_box->data.p_stts->i_entry_count );
795
796 p_box->data.p_stts->i_sample_count =
797 calloc( p_box->data.p_stts->i_entry_count, sizeof(uint32_t) );
798 p_box->data.p_stts->i_sample_delta =
799 calloc( p_box->data.p_stts->i_entry_count, sizeof(uint32_t) );
800 if( p_box->data.p_stts->i_sample_count == NULL
801 || p_box->data.p_stts->i_sample_delta == NULL )
802 {
803 MP4_READBOX_EXIT( 0 );
804 }
805
806 for( i = 0; (i < p_box->data.p_stts->i_entry_count )&&( i_read >=8 ); i++ )
807 {
808 MP4_GET4BYTES( p_box->data.p_stts->i_sample_count[i] );
809 MP4_GET4BYTES( p_box->data.p_stts->i_sample_delta[i] );
810 }
811
812 #ifdef MP4_VERBOSE
813 msg_Dbg( p_stream, "read box: \"stts\" entry-count %d",
814 p_box->data.p_stts->i_entry_count );
815
816 #endif
817 MP4_READBOX_EXIT( 1 );
818 }
819
820
821 static void MP4_FreeBox_ctts( MP4_Box_t *p_box )
822 {
823 FREENULL( p_box->data.p_ctts->i_sample_count );
824 FREENULL( p_box->data.p_ctts->i_sample_offset );
825 }
826
827 static int MP4_ReadBox_ctts( stream_t *p_stream, MP4_Box_t *p_box )
828 {
829 unsigned int i;
830 MP4_READBOX_ENTER( MP4_Box_data_ctts_t );
831
832 MP4_GETVERSIONFLAGS( p_box->data.p_ctts );
833
834 MP4_GET4BYTES( p_box->data.p_ctts->i_entry_count );
835
836 p_box->data.p_ctts->i_sample_count =
837 calloc( p_box->data.p_ctts->i_entry_count, sizeof(uint32_t) );
838 p_box->data.p_ctts->i_sample_offset =
839 calloc( p_box->data.p_ctts->i_entry_count, sizeof(uint32_t) );
840 if( ( p_box->data.p_ctts->i_sample_count == NULL )
841 || ( p_box->data.p_ctts->i_sample_offset == NULL ) )
842 {
843 MP4_READBOX_EXIT( 0 );
844 }
845
846 for( i = 0; (i < p_box->data.p_ctts->i_entry_count )&&( i_read >=8 ); i++ )
847 {
848 MP4_GET4BYTES( p_box->data.p_ctts->i_sample_count[i] );
849 MP4_GET4BYTES( p_box->data.p_ctts->i_sample_offset[i] );
850 }
851
852 #ifdef MP4_VERBOSE
853 msg_Dbg( p_stream, "read box: \"ctts\" entry-count %d",
854 p_box->data.p_ctts->i_entry_count );
855
856 #endif
857 MP4_READBOX_EXIT( 1 );
858 }
859
860
861 static int MP4_ReadLengthDescriptor( uint8_t **pp_peek, int64_t *i_read )
862 {
863 unsigned int i_b;
864 unsigned int i_len = 0;
865 do
866 {
867 i_b = **pp_peek;
868
869 (*pp_peek)++;
870 (*i_read)--;
871 i_len = ( i_len << 7 ) + ( i_b&0x7f );
872 } while( i_b&0x80 );
873 return( i_len );
874 }
875
876
877 static void MP4_FreeBox_esds( MP4_Box_t *p_box )
878 {
879 FREENULL( p_box->data.p_esds->es_descriptor.psz_URL );
880 if( p_box->data.p_esds->es_descriptor.p_decConfigDescr )
881 {
882 FREENULL( p_box->data.p_esds->es_descriptor.p_decConfigDescr->p_decoder_specific_info );
883 FREENULL( p_box->data.p_esds->es_descriptor.p_decConfigDescr );
884 }
885 }
886
887 static int MP4_ReadBox_esds( stream_t *p_stream, MP4_Box_t *p_box )
888 {
889 #define es_descriptor p_box->data.p_esds->es_descriptor
890 unsigned int i_len;
891 unsigned int i_flags;
892 unsigned int i_type;
893
894 MP4_READBOX_ENTER( MP4_Box_data_esds_t );
895
896 MP4_GETVERSIONFLAGS( p_box->data.p_esds );
897
898
899 MP4_GET1BYTE( i_type );
900 if( i_type == 0x03 ) /* MP4ESDescrTag */
901 {
902 i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );
903
904 #ifdef MP4_VERBOSE
905 msg_Dbg( p_stream, "found esds MPEG4ESDescr (%dBytes)",
906 i_len );
907 #endif
908
909 MP4_GET2BYTES( es_descriptor.i_ES_ID );
910 MP4_GET1BYTE( i_flags );
911 es_descriptor.b_stream_dependence = ( (i_flags&0x80) != 0);
912 es_descriptor.b_url = ( (i_flags&0x40) != 0);
913 es_descriptor.b_OCRstream = ( (i_flags&0x20) != 0);
914
915 es_descriptor.i_stream_priority = i_flags&0x1f;
916 if( es_descriptor.b_stream_dependence )
917 {
918 MP4_GET2BYTES( es_descriptor.i_depend_on_ES_ID );
919 }
920 if( es_descriptor.b_url )
921 {
922 unsigned int i_len;
923
924 MP4_GET1BYTE( i_len );
925 es_descriptor.psz_URL = malloc( i_len + 1 );
926 if( es_descriptor.psz_URL )
927 {
928 memcpy( es_descriptor.psz_URL, p_peek, i_len );
929 es_descriptor.psz_URL[i_len] = 0;
930 }
931 p_peek += i_len;
932 i_read -= i_len;
933 }
934 else
935 {
936 es_descriptor.psz_URL = NULL;
937 }
938 if( es_descriptor.b_OCRstream )
939 {
940 MP4_GET2BYTES( es_descriptor.i_OCR_ES_ID );
941 }
942 MP4_GET1BYTE( i_type ); /* get next type */
943 }
944
945 if( i_type != 0x04)/* MP4DecConfigDescrTag */
946 {
947 es_descriptor.p_decConfigDescr = NULL;
948 MP4_READBOX_EXIT( 1 ); /* rest isn't interesting up to now */
949 }
950
951 i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );
952
953 #ifdef MP4_VERBOSE
954 msg_Dbg( p_stream, "found esds MP4DecConfigDescr (%dBytes)",
955 i_len );
956 #endif
957
958 es_descriptor.p_decConfigDescr =
959 calloc( 1, sizeof( MP4_descriptor_decoder_config_t ));
960 if( es_descriptor.p_decConfigDescr == NULL )
961 MP4_READBOX_EXIT( 0 );
962
963 MP4_GET1BYTE( es_descriptor.p_decConfigDescr->i_objectTypeIndication );
964 MP4_GET1BYTE( i_flags );
965 es_descriptor.p_decConfigDescr->i_streamType = i_flags >> 2;
966 es_descriptor.p_decConfigDescr->b_upStream = ( i_flags >> 1 )&0x01;
967 MP4_GET3BYTES( es_descriptor.p_decConfigDescr->i_buffer_sizeDB );
968 MP4_GET4BYTES( es_descriptor.p_decConfigDescr->i_max_bitrate );
969 MP4_GET4BYTES( es_descriptor.p_decConfigDescr->i_avg_bitrate );
970 MP4_GET1BYTE( i_type );
971 if( i_type != 0x05 )/* MP4DecSpecificDescrTag */
972 {
973 es_descriptor.p_decConfigDescr->i_decoder_specific_info_len = 0;
974 es_descriptor.p_decConfigDescr->p_decoder_specific_info = NULL;
975 MP4_READBOX_EXIT( 1 );
976 }
977
978 i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );
979
980 #ifdef MP4_VERBOSE
981 msg_Dbg( p_stream, "found esds MP4DecSpecificDescr (%dBytes)",
982 i_len );
983 #endif
984 if( i_len > i_read )
985 MP4_READBOX_EXIT( 0 );
986
987 es_descriptor.p_decConfigDescr->i_decoder_specific_info_len = i_len;
988 es_descriptor.p_decConfigDescr->p_decoder_specific_info = malloc( i_len );
989 if( es_descriptor.p_decConfigDescr->p_decoder_specific_info == NULL )
990 MP4_READBOX_EXIT( 0 );
991
992 memcpy( es_descriptor.p_decConfigDescr->p_decoder_specific_info,
993 p_peek, i_len );
994
995 MP4_READBOX_EXIT( 1 );
996 #undef es_descriptor
997 }
998
999 static void MP4_FreeBox_avcC( MP4_Box_t *p_box )
1000 {
1001 MP4_Box_data_avcC_t *p_avcC = p_box->data.p_avcC;
1002 int i;
1003
1004 if( p_avcC->i_avcC > 0 ) FREENULL( p_avcC->p_avcC );
1005
1006 if( p_avcC->sps )
1007 {
1008 for( i = 0; i < p_avcC->i_sps; i++ )
1009 FREENULL( p_avcC->sps[i] );
1010 }
1011 if( p_avcC->pps )
1012 {
1013 for( i = 0; i < p_avcC->i_pps; i++ )
1014 FREENULL( p_avcC->pps[i] );
1015 }
1016 if( p_avcC->i_sps > 0 ) FREENULL( p_avcC->sps );
1017 if( p_avcC->i_sps > 0 ) FREENULL( p_avcC->i_sps_length );
1018 if( p_avcC->i_pps > 0 ) FREENULL( p_avcC->pps );
1019 if( p_avcC->i_pps > 0 ) FREENULL( p_avcC->i_pps_length );
1020 }
1021
1022 static int MP4_ReadBox_avcC( stream_t *p_stream, MP4_Box_t *p_box )
1023 {
1024 MP4_Box_data_avcC_t *p_avcC;
1025 int i;
1026
1027 MP4_READBOX_ENTER( MP4_Box_data_avcC_t );
1028 p_avcC = p_box->data.p_avcC;
1029
1030 p_avcC->i_avcC = i_read;
1031 if( p_avcC->i_avcC > 0 )
1032 {
1033 uint8_t * p = p_avcC->p_avcC = malloc( p_avcC->i_avcC );
1034 if( p )
1035 memcpy( p, p_peek, i_read );
1036 }
1037
1038 MP4_GET1BYTE( p_avcC->i_version );
1039 MP4_GET1BYTE( p_avcC->i_profile );
1040 MP4_GET1BYTE( p_avcC->i_profile_compatibility );
1041 MP4_GET1BYTE( p_avcC->i_level );
1042 MP4_GET1BYTE( p_avcC->i_reserved1 );
1043 p_avcC->i_length_size = (p_avcC->i_reserved1&0x03) + 1;
1044 p_avcC->i_reserved1 >>= 2;
1045
1046 MP4_GET1BYTE( p_avcC->i_reserved2 );
1047 p_avcC->i_sps = p_avcC->i_reserved2&0x1f;
1048 p_avcC->i_reserved2 >>= 5;
1049
1050 if( p_avcC->i_sps > 0 )
1051 {
1052 p_avcC->i_sps_length = calloc( p_avcC->i_sps, sizeof( uint16_t ) );
1053 p_avcC->sps = calloc( p_avcC->i_sps, sizeof( uint8_t* ) );
1054
1055 if( !p_avcC->i_sps_length || !p_avcC->sps )
1056 goto error;
1057
1058 for( i = 0; i < p_avcC->i_sps; i++ )
1059 {
1060 MP4_GET2BYTES( p_avcC->i_sps_length[i] );
1061 p_avcC->sps[i] = malloc( p_avcC->i_sps_length[i] );
1062 if( p_avcC->sps[i] )
1063 memcpy( p_avcC->sps[i], p_peek, p_avcC->i_sps_length[i] );
1064
1065 p_peek += p_avcC->i_sps_length[i];
1066 i_read -= p_avcC->i_sps_length[i];
1067 }
1068 }
1069
1070 MP4_GET1BYTE( p_avcC->i_pps );
1071 if( p_avcC->i_pps > 0 )
1072 {
1073 p_avcC->i_pps_length = calloc( p_avcC->i_pps, sizeof( uint16_t ) );
1074 p_avcC->pps = calloc( p_avcC->i_pps, sizeof( uint8_t* ) );
1075
1076 if( !p_avcC->i_pps_length || !p_avcC->pps )
1077 goto error;
1078
1079 for( i = 0; i < p_avcC->i_pps; i++ )
1080 {
1081 MP4_GET2BYTES( p_avcC->i_pps_length[i] );
1082 p_avcC->pps[i] = malloc( p_avcC->i_pps_length[i] );
1083 if( p_avcC->pps[i] )
1084 memcpy( p_avcC->pps[i], p_peek, p_avcC->i_pps_length[i] );
1085
1086 p_peek += p_avcC->i_pps_length[i];
1087 i_read -= p_avcC->i_pps_length[i];
1088 }
1089 }
1090 #ifdef MP4_VERBOSE
1091 msg_Dbg( p_stream,
1092 "read box: \"avcC\" version=%d profile=0x%x level=0x%x length size=%d sps=%d pps=%d",
1093 p_avcC->i_version, p_avcC->i_profile, p_avcC->i_level,
1094 p_avcC->i_length_size,
1095 p_avcC->i_sps, p_avcC->i_pps );
1096 for( i = 0; i < p_avcC->i_sps; i++ )
1097 {
1098 msg_Dbg( p_stream, " - sps[%d] length=%d",
1099 i, p_avcC->i_sps_length[i] );
1100 }
1101 for( i = 0; i < p_avcC->i_pps; i++ )
1102 {
1103 msg_Dbg( p_stream, " - pps[%d] length=%d",
1104 i, p_avcC->i_pps_length[i] );
1105 }
1106
1107 #endif
1108 MP4_READBOX_EXIT( 1 );
1109
1110 error:
1111 MP4_READBOX_EXIT( 0 );
1112 }
1113
1114 static int MP4_ReadBox_dac3( stream_t *p_stream, MP4_Box_t *p_box )
1115 {
1116 MP4_Box_data_dac3_t *p_dac3;
1117 MP4_READBOX_ENTER( MP4_Box_data_dac3_t );
1118
1119 p_dac3 = p_box->data.p_dac3;
1120
1121 unsigned i_header;
1122 MP4_GET3BYTES( i_header );
1123
1124 p_dac3->i_fscod = ( i_header >> 22 ) & 0x03;
1125 p_dac3->i_bsid = ( i_header >> 17 ) & 0x01f;
1126 p_dac3->i_bsmod = ( i_header >> 14 ) & 0x07;
1127 p_dac3->i_acmod = ( i_header >> 11 ) & 0x07;
1128 p_dac3->i_lfeon = ( i_header >> 10 ) & 0x01;
1129 p_dac3->i_bitrate_code = ( i_header >> 5) & 0x1f;
1130
1131 #ifdef MP4_VERBOSE
1132 msg_Dbg( p_stream,
1133 "read box: \"dac3\" fscod=0x%x bsid=0x%x bsmod=0x%x acmod=0x%x lfeon=0x%x bitrate_code=0x%x",
1134 p_dac3->i_fscod, p_dac3->i_bsid, p_dac3->i_bsmod, p_dac3->i_acmod, p_dac3->i_lfeon, p_dac3->i_bitrate_code );
1135 #endif
1136 MP4_READBOX_EXIT( 1 );
1137 }
1138
1139 static int MP4_ReadBox_enda( stream_t *p_stream, MP4_Box_t *p_box )
1140 {
1141 MP4_Box_data_enda_t *p_enda;
1142 MP4_READBOX_ENTER( MP4_Box_data_enda_t );
1143
1144 p_enda = p_box->data.p_enda;
1145
1146 MP4_GET2BYTES( p_enda->i_little_endian );
1147
1148 #ifdef MP4_VERBOSE
1149 msg_Dbg( p_stream,
1150 "read box: \"enda\" little_endian=%d", p_enda->i_little_endian );
1151 #endif
1152 MP4_READBOX_EXIT( 1 );
1153 }
1154
1155 static int MP4_ReadBox_gnre( stream_t *p_stream, MP4_Box_t *p_box )
1156 {
1157 MP4_Box_data_gnre_t *p_gnre;
1158 MP4_READBOX_ENTER( MP4_Box_data_gnre_t );
1159
1160 p_gnre = p_box->data.p_gnre;
1161
1162 uint32_t i_data_len;
1163 uint32_t i_data_tag;
1164
1165 MP4_GET4BYTES( i_data_len );
1166 MP4_GETFOURCC( i_data_tag );
1167 if( i_data_len < 10 || i_data_tag != VLC_FOURCC('d', 'a', 't', 'a') )
1168 MP4_READBOX_EXIT( 0 );
1169
1170 uint32_t i_version;
1171 uint32_t i_reserved;
1172 MP4_GET4BYTES( i_version );
1173 MP4_GET4BYTES( i_reserved );
1174 MP4_GET2BYTES( p_gnre->i_genre );
1175 #ifdef MP4_VERBOSE
1176 msg_Dbg( p_stream, "read box: \"gnre\" genre=%i", p_gnre->i_genre );
1177 #endif
1178
1179 MP4_READBOX_EXIT( 1 );
1180 }
1181
1182 static int MP4_ReadBox_sample_soun( stream_t *p_stream, MP4_Box_t *p_box )
1183 {
1184 unsigned int i;
1185
1186 MP4_READBOX_ENTER( MP4_Box_data_sample_soun_t );
1187 p_box->data.p_sample_soun->p_qt_description = NULL;
1188
1189 /* Sanity check needed because the "wave" box does also contain an
1190 * "mp4a" box that we don't understand. */
1191 if( i_read < 28 )
1192 {
1193 i_read -= 30;
1194 MP4_READBOX_EXIT( 1 );
1195 }
1196
1197 for( i = 0; i < 6 ; i++ )
1198 {
1199 MP4_GET1BYTE( p_box->data.p_sample_soun->i_reserved1[i] );
1200 }
1201
1202 MP4_GET2BYTES( p_box->data.p_sample_soun->i_data_reference_index );
1203
1204 /*
1205 * XXX hack -> produce a copy of the nearly complete chunk
1206 */
1207 p_box->data.p_sample_soun->i_qt_description = 0;
1208 p_box->data.p_sample_soun->p_qt_description = NULL;
1209 if( i_read > 0 )
1210 {
1211 p_box->data.p_sample_soun->p_qt_description = malloc( i_read );
1212 if( p_box->data.p_sample_soun->p_qt_description )
1213 {
1214 p_box->data.p_sample_soun->i_qt_description = i_read;
1215 memcpy( p_box->data.p_sample_soun->p_qt_description, p_peek, i_read );
1216 }
1217 }
1218
1219 MP4_GET2BYTES( p_box->data.p_sample_soun->i_qt_version );
1220 MP4_GET2BYTES( p_box->data.p_sample_soun->i_qt_revision_level );
1221 MP4_GET4BYTES( p_box->data.p_sample_soun->i_qt_vendor );
1222
1223 MP4_GET2BYTES( p_box->data.p_sample_soun->i_channelcount );
1224 MP4_GET2BYTES( p_box->data.p_sample_soun->i_samplesize );
1225 MP4_GET2BYTES( p_box->data.p_sample_soun->i_predefined );
1226 MP4_GET2BYTES( p_box->data.p_sample_soun->i_reserved3 );
1227 MP4_GET2BYTES( p_box->data.p_sample_soun->i_sampleratehi );
1228 MP4_GET2BYTES( p_box->data.p_sample_soun->i_sampleratelo );
1229
1230 if( p_box->data.p_sample_soun->i_qt_version == 1 && i_read >= 16 )
1231 {
1232 /* SoundDescriptionV1 */
1233 MP4_GET4BYTES( p_box->data.p_sample_soun->i_sample_per_packet );
1234 MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_packet );
1235 MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_frame );
1236 MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_sample );
1237
1238 #ifdef MP4_VERBOSE
1239 msg_Dbg( p_stream,
1240 "read box: \"soun\" qt3+ sample/packet=%d bytes/packet=%d "
1241 "bytes/frame=%d bytes/sample=%d",
1242 p_box->data.p_sample_soun->i_sample_per_packet,
1243 p_box->data.p_sample_soun->i_bytes_per_packet,
1244 p_box->data.p_sample_soun->i_bytes_per_frame,
1245 p_box->data.p_sample_soun->i_bytes_per_sample );
1246 #endif
1247 stream_Seek( p_stream, p_box->i_pos +
1248 MP4_BOX_HEADERSIZE( p_box ) + 44 );
1249 }
1250 else if( p_box->data.p_sample_soun->i_qt_version == 2 && i_read >= 36 )
1251 {
1252 /* SoundDescriptionV2 */
1253 double f_sample_rate;
1254 int64_t dummy;
1255 uint32_t i_channel;
1256
1257 MP4_GET4BYTES( p_box->data.p_sample_soun->i_sample_per_packet );
1258 MP4_GET8BYTES( dummy );
1259 memcpy( &f_sample_rate, &dummy, 8 );
1260
1261 msg_Dbg( p_stream, "read box: %f Hz", f_sample_rate );
1262 p_box->data.p_sample_soun->i_sampleratehi = (int)f_sample_rate % 65536;
1263 p_box->data.p_sample_soun->i_sampleratelo = f_sample_rate / 65536;
1264
1265 MP4_GET4BYTES( i_channel );
1266 p_box->data.p_sample_soun->i_channelcount = i_channel;
1267
1268 #ifdef MP4_VERBOSE
1269 msg_Dbg( p_stream, "read box: \"soun\" V2" );
1270 #endif
1271 stream_Seek( p_stream, p_box->i_pos +
1272 MP4_BOX_HEADERSIZE( p_box ) + 28 + 36 );
1273 }
1274 else
1275 {
1276 p_box->data.p_sample_soun->i_sample_per_packet = 0;
1277 p_box->data.p_sample_soun->i_bytes_per_packet = 0;
1278 p_box->data.p_sample_soun->i_bytes_per_frame = 0;
1279 p_box->data.p_sample_soun->i_bytes_per_sample = 0;
1280
1281 msg_Dbg( p_stream, "read box: \"soun\" mp4 or qt1/2 (rest=%"PRId64")",
1282 i_read );
1283 stream_Seek( p_stream, p_box->i_pos +
1284 MP4_BOX_HEADERSIZE( p_box ) + 28 );
1285 }
1286
1287 if( p_box->i_type == FOURCC_drms )
1288 {
1289 char *home = config_GetUserDir( VLC_HOME_DIR );
1290 if( home != NULL )
1291 {
1292 p_box->data.p_sample_soun->p_drms = drms_alloc( home );
1293 if( p_box->data.p_sample_soun->p_drms == NULL )
1294 msg_Err( p_stream, "drms_alloc() failed" );
1295 }
1296 }
1297
1298 if( p_box->i_type == FOURCC_samr || p_box->i_type == FOURCC_sawb )
1299 {
1300 /* Ignore channelcount for AMR (3gpp AMRSpecificBox) */
1301 p_box->data.p_sample_soun->i_channelcount = 1;
1302 }
1303
1304 MP4_ReadBoxContainerRaw( p_stream, p_box ); /* esds/wave/... */
1305
1306 #ifdef MP4_VERBOSE
1307 msg_Dbg( p_stream, "read box: \"soun\" in stsd channel %d "
1308 "sample size %d sample rate %f",
1309 p_box->data.p_sample_soun->i_channelcount,
1310 p_box->data.p_sample_soun->i_samplesize,
1311 (float)p_box->data.p_sample_soun->i_sampleratehi +
1312 (float)p_box->data.p_sample_soun->i_sampleratelo / 65536 );
1313
1314 #endif
1315 MP4_READBOX_EXIT( 1 );
1316 }
1317
1318
1319 static void MP4_FreeBox_sample_soun( MP4_Box_t *p_box )
1320 {
1321 FREENULL( p_box->data.p_sample_soun->p_qt_description );
1322
1323 if( p_box->i_type == FOURCC_drms )
1324 {
1325 if( p_box->data.p_sample_soun->p_drms )
1326 {
1327 drms_free( p_box->data.p_sample_soun->p_drms );
1328 }
1329 }
1330 }
1331
1332
1333 int MP4_ReadBox_sample_vide( stream_t *p_stream, MP4_Box_t *p_box )
1334 {
1335 unsigned int i;
1336
1337 MP4_READBOX_ENTER( MP4_Box_data_sample_vide_t );
1338
1339 for( i = 0; i < 6 ; i++ )
1340 {
1341 MP4_GET1BYTE( p_box->data.p_sample_vide->i_reserved1[i] );
1342 }
1343
1344 MP4_GET2BYTES( p_box->data.p_sample_vide->i_data_reference_index );
1345
1346 /*
1347 * XXX hack -> produce a copy of the nearly complete chunk
1348 */
1349 if( i_read > 0 )
1350 {
1351 p_box->data.p_sample_vide->p_qt_image_description = malloc( i_read );
1352 if( p_box->data.p_sample_vide->p_qt_image_description == NULL )
1353 MP4_READBOX_EXIT( 0 );
1354 p_box->data.p_sample_vide->i_qt_image_description = i_read;
1355 memcpy( p_box->data.p_sample_vide->p_qt_image_description,
1356 p_peek, i_read );
1357 }
1358 else
1359 {
1360 p_box->data.p_sample_vide->i_qt_image_description = 0;
1361 p_box->data.p_sample_vide->p_qt_image_description = NULL;
1362 }
1363
1364 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_version );
1365 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_revision_level );
1366 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_vendor );
1367
1368 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_temporal_quality );
1369 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_spatial_quality );
1370
1371 MP4_GET2BYTES( p_box->data.p_sample_vide->i_width );
1372 MP4_GET2BYTES( p_box->data.p_sample_vide->i_height );
1373
1374 MP4_GET4BYTES( p_box->data.p_sample_vide->i_horizresolution );
1375 MP4_GET4BYTES( p_box->data.p_sample_vide->i_vertresolution );
1376
1377 MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_data_size );
1378 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_frame_count );
1379
1380 memcpy( &p_box->data.p_sample_vide->i_compressorname, p_peek, 32 );
1381 p_peek += 32; i_read -= 32;
1382
1383 MP4_GET2BYTES( p_box->data.p_sample_vide->i_depth );
1384 MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_color_table );
1385
1386 stream_Seek( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 78);
1387
1388 if( p_box->i_type == FOURCC_drmi )
1389 {
1390 char *home = config_GetUserDir( VLC_HOME_DIR );
1391 if( home != NULL )
1392 {
1393 p_box->data.p_sample_vide->p_drms = drms_alloc( home );
1394 if( p_box->data.p_sample_vide->p_drms == NULL )
1395 msg_Err( p_stream, "drms_alloc() failed" );
1396 }
1397 }
1398
1399 MP4_ReadBoxContainerRaw( p_stream, p_box );
1400
1401 #ifdef MP4_VERBOSE
1402 msg_Dbg( p_stream, "read box: \"vide\" in stsd %dx%d depth %d",
1403 p_box->data.p_sample_vide->i_width,
1404 p_box->data.p_sample_vide->i_height,
1405 p_box->data.p_sample_vide->i_depth );
1406
1407 #endif
1408 MP4_READBOX_EXIT( 1 );
1409 }
1410
1411
1412 void MP4_FreeBox_sample_vide( MP4_Box_t *p_box )
1413 {
1414 FREENULL( p_box->data.p_sample_vide->p_qt_image_description );
1415
1416 if( p_box->i_type == FOURCC_drmi )
1417 {
1418 if( p_box->data.p_sample_vide->p_drms )
1419 {
1420 drms_free( p_box->data.p_sample_vide->p_drms );
1421 }
1422 }
1423 }
1424
1425 static int MP4_ReadBox_sample_mp4s( stream_t *p_stream, MP4_Box_t *p_box )
1426 {
1427 stream_Seek( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 8 );
1428 MP4_ReadBoxContainerRaw( p_stream, p_box );
1429 return 1;
1430 }
1431
1432 static int MP4_ReadBox_sample_text( stream_t *p_stream, MP4_Box_t *p_box )
1433 {
1434 int32_t t;
1435
1436 MP4_READBOX_ENTER( MP4_Box_data_sample_text_t );
1437
1438 MP4_GET4BYTES( p_box->data.p_sample_text->i_reserved1 );
1439 MP4_GET2BYTES( p_box->data.p_sample_text->i_reserved2 );
1440
1441 MP4_GET2BYTES( p_box->data.p_sample_text->i_data_reference_index );
1442
1443 MP4_GET4BYTES( p_box->data.p_sample_text->i_display_flags );
1444
1445 MP4_GET4BYTES( t );
1446 switch( t )
1447 {
1448 /* FIXME search right signification */
1449 case 1: // Center
1450 p_box->data.p_sample_text->i_justification_horizontal = 1;
1451 p_box->data.p_sample_text->i_justification_vertical = 1;
1452 break;
1453 case -1: // Flush Right
1454 p_box->data.p_sample_text->i_justification_horizontal = -1;
1455 p_box->data.p_sample_text->i_justification_vertical = -1;
1456 break;
1457 case -2: // Flush Left
1458 p_box->data.p_sample_text->i_justification_horizontal = 0;
1459 p_box->data.p_sample_text->i_justification_vertical = 0;
1460 break;
1461 case 0: // Flush Default
1462 default:
1463 p_box->data.p_sample_text->i_justification_horizontal = 1;
1464 p_box->data.p_sample_text->i_justification_vertical = -1;
1465 break;
1466 }
1467
1468 MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[0] );
1469 MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[1] );
1470 MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[2] );
1471 p_box->data.p_sample_text->i_background_color[3] = 0;
1472
1473 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_top );
1474 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_left );
1475 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_bottom );
1476 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_right );
1477
1478 #ifdef MP4_VERBOSE
1479 msg_Dbg( p_stream, "read box: \"text\" in stsd text" );
1480 #endif
1481 MP4_READBOX_EXIT( 1 );
1482 }
1483
1484 static int MP4_ReadBox_sample_tx3g( stream_t *p_stream, MP4_Box_t *p_box )
1485 {
1486 MP4_READBOX_ENTER( MP4_Box_data_sample_text_t );
1487
1488 MP4_GET4BYTES( p_box->data.p_sample_text->i_reserved1 );
1489 MP4_GET2BYTES( p_box->data.p_sample_text->i_reserved2 );
1490
1491 MP4_GET2BYTES( p_box->data.p_sample_text->i_data_reference_index );
1492
1493 MP4_GET4BYTES( p_box->data.p_sample_text->i_display_flags );
1494
1495 MP4_GET1BYTE ( p_box->data.p_sample_text->i_justification_horizontal );
1496 MP4_GET1BYTE ( p_box->data.p_sample_text->i_justification_vertical );
1497
1498 MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[0] );
1499 MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[1] );
1500 MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[2] );
1501 MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[3] );
1502
1503 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_top );
1504 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_left );
1505 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_bottom );
1506 MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_right );
1507
1508 #ifdef MP4_VERBOSE
1509 msg_Dbg( p_stream, "read box: \"tx3g\" in stsd text" );
1510 #endif
1511 MP4_READBOX_EXIT( 1 );
1512 }
1513
1514
1515 #if 0
1516 /* We can't easily call it, and anyway ~ 20 bytes lost isn't a real problem */
1517 static void MP4_FreeBox_sample_text( MP4_Box_t *p_box )
1518 {
1519 FREENULL( p_box->data.p_sample_text->psz_text_name );
1520 }
1521 #endif
1522
1523
1524 static int MP4_ReadBox_stsd( stream_t *p_stream, MP4_Box_t *p_box )
1525 {
1526
1527 MP4_READBOX_ENTER( MP4_Box_data_stsd_t );
1528
1529 MP4_GETVERSIONFLAGS( p_box->data.p_stsd );
1530
1531 MP4_GET4BYTES( p_box->data.p_stsd->i_entry_count );
1532
1533 stream_Seek( p_stream, p_box->i_pos + MP4_BOX_HEADERSIZE( p_box ) + 8 );
1534
1535 MP4_ReadBoxContainerRaw( p_stream, p_box );
1536
1537 #ifdef MP4_VERBOSE
1538 msg_Dbg( p_stream, "read box: \"stsd\" entry-count %d",
1539 p_box->data.p_stsd->i_entry_count );
1540
1541 #endif
1542 MP4_READBOX_EXIT( 1 );
1543 }
1544
1545
1546 static int MP4_ReadBox_stsz( stream_t *p_stream, MP4_Box_t *p_box )
1547 {
1548 unsigned int i;
1549
1550 MP4_READBOX_ENTER( MP4_Box_data_stsz_t );
1551
1552 MP4_GETVERSIONFLAGS( p_box->data.p_stsz );
1553
1554 MP4_GET4BYTES( p_box->data.p_stsz->i_sample_size );
1555
1556 MP4_GET4BYTES( p_box->data.p_stsz->i_sample_count );
1557
1558 p_box->data.p_stsz->i_entry_size =
1559 calloc( p_box->data.p_stsz->i_sample_count, sizeof(uint32_t) );
1560 if( p_box->data.p_stsz->i_entry_size == NULL )
1561 MP4_READBOX_EXIT( 0 );
1562
1563 if( !p_box->data.p_stsz->i_sample_size )
1564 {
1565 for( i=0; (i<p_box->data.p_stsz->i_sample_count)&&(i_read >= 4 ); i++ )
1566 {
1567 MP4_GET4BYTES( p_box->data.p_stsz->i_entry_size[i] );
1568 }
1569 }
1570
1571 #ifdef MP4_VERBOSE
1572 msg_Dbg( p_stream, "read box: \"stsz\" sample-size %d sample-count %d",
1573 p_box->data.p_stsz->i_sample_size,
1574 p_box->data.p_stsz->i_sample_count );
1575
1576 #endif
1577 MP4_READBOX_EXIT( 1 );
1578 }
1579
1580 static void MP4_FreeBox_stsz( MP4_Box_t *p_box )
1581 {
1582 FREENULL( p_box->data.p_stsz->i_entry_size );
1583 }
1584
1585 static void MP4_FreeBox_stsc( MP4_Box_t *p_box )
1586 {
1587 FREENULL( p_box->data.p_stsc->i_first_chunk );
1588 FREENULL( p_box->data.p_stsc->i_samples_per_chunk );
1589 FREENULL( p_box->data.p_stsc->i_sample_description_index );
1590 }
1591
1592 static int MP4_ReadBox_stsc( stream_t *p_stream, MP4_Box_t *p_box )
1593 {
1594 unsigned int i;
1595
1596 MP4_READBOX_ENTER( MP4_Box_data_stsc_t );
1597
1598 MP4_GETVERSIONFLAGS( p_box->data.p_stsc );
1599
1600 MP4_GET4BYTES( p_box->data.p_stsc->i_entry_count );
1601
1602 p_box->data.p_stsc->i_first_chunk =
1603 calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
1604 p_box->data.p_stsc->i_samples_per_chunk =
1605 calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
1606 p_box->data.p_stsc->i_sample_description_index =
1607 calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
1608 if( p_box->data.p_stsc->i_first_chunk == NULL
1609 || p_box->data.p_stsc->i_samples_per_chunk == NULL
1610 || p_box->data.p_stsc->i_sample_description_index == NULL )
1611 {
1612 MP4_READBOX_EXIT( 0 );
1613 }
1614
1615 for( i = 0; (i < p_box->data.p_stsc->i_entry_count )&&( i_read >= 12 );i++ )
1616 {
1617 MP4_GET4BYTES( p_box->data.p_stsc->i_first_chunk[i] );
1618 MP4_GET4BYTES( p_box->data.p_stsc->i_samples_per_chunk[i] );
1619 MP4_GET4BYTES( p_box->data.p_stsc->i_sample_description_index[i] );
1620 }
1621
1622 #ifdef MP4_VERBOSE
1623 msg_Dbg( p_stream, "read box: \"stsc\" entry-count %d",
1624 p_box->data.p_stsc->i_entry_count );
1625
1626 #endif
1627 MP4_READBOX_EXIT( 1 );
1628 }
1629
1630 static int MP4_ReadBox_stco_co64( stream_t *p_stream, MP4_Box_t *p_box )
1631 {
1632 unsigned int i;
1633
1634 MP4_READBOX_ENTER( MP4_Box_data_co64_t );
1635
1636 MP4_GETVERSIONFLAGS( p_box->data.p_co64 );
1637
1638 MP4_GET4BYTES( p_box->data.p_co64->i_entry_count );
1639
1640 p_box->data.p_co64->i_chunk_offset =
1641 calloc( p_box->data.p_co64->i_entry_count, sizeof(uint64_t) );
1642 if( p_box->data.p_co64->i_chunk_offset == NULL )
1643 MP4_READBOX_EXIT( 0 );
1644
1645 for( i = 0; i < p_box->data.p_co64->i_entry_count; i++ )
1646 {
1647 if( p_box->i_type == FOURCC_stco )
1648 {
1649 if( i_read < 4 )
1650 {
1651 break;
1652 }
1653 MP4_GET4BYTES( p_box->data.p_co64->i_chunk_offset[i] );
1654 }
1655 else
1656 {
1657 if( i_read < 8 )
1658 {
1659 break;
1660 }
1661 MP4_GET8BYTES( p_box->data.p_co64->i_chunk_offset[i] );
1662 }
1663 }
1664
1665 #ifdef MP4_VERBOSE
1666 msg_Dbg( p_stream, "read box: \"co64\" entry-count %d",
1667 p_box->data.p_co64->i_entry_count );
1668
1669 #endif
1670 MP4_READBOX_EXIT( 1 );
1671 }
1672
1673 static void MP4_FreeBox_stco_co64( MP4_Box_t *p_box )
1674 {
1675 FREENULL( p_box->data.p_co64->i_chunk_offset );
1676 }
1677
1678 static int MP4_ReadBox_stss( stream_t *p_stream, MP4_Box_t *p_box )
1679 {
1680 unsigned int i;
1681
1682 MP4_READBOX_ENTER( MP4_Box_data_stss_t );
1683
1684 MP4_GETVERSIONFLAGS( p_box->data.p_stss );
1685
1686 MP4_GET4BYTES( p_box->data.p_stss->i_entry_count );
1687
1688 p_box->data.p_stss->i_sample_number =
1689 calloc( p_box->data.p_stss->i_entry_count, sizeof(uint32_t) );
1690 if( p_box->data.p_stss->i_sample_number == NULL )
1691 MP4_READBOX_EXIT( 0 );
1692
1693 for( i = 0; (i < p_box->data.p_stss->i_entry_count )&&( i_read >= 4 ); i++ )
1694 {
1695
1696 MP4_GET4BYTES( p_box->data.p_stss->i_sample_number[i] );
1697 /* XXX in libmp4 sample begin at 0 */
1698 p_box->data.p_stss->i_sample_number[i]--;
1699 }
1700
1701 #ifdef MP4_VERBOSE
1702 msg_Dbg( p_stream, "read box: \"stss\" entry-count %d",
1703 p_box->data.p_stss->i_entry_count );
1704
1705 #endif
1706 MP4_READBOX_EXIT( 1 );
1707 }
1708
1709 static void MP4_FreeBox_stss( MP4_Box_t *p_box )
1710 {
1711 FREENULL( p_box->data.p_stss->i_sample_number );
1712 }
1713
1714 static void MP4_FreeBox_stsh( MP4_Box_t *p_box )
1715 {
1716 FREENULL( p_box->data.p_stsh->i_shadowed_sample_number );
1717 FREENULL( p_box->data.p_stsh->i_sync_sample_number );
1718 }
1719
1720 static int MP4_ReadBox_stsh( stream_t *p_stream, MP4_Box_t *p_box )
1721 {
1722 unsigned int i;
1723
1724 MP4_READBOX_ENTER( MP4_Box_data_stsh_t );
1725
1726 MP4_GETVERSIONFLAGS( p_box->data.p_stsh );
1727
1728
1729 MP4_GET4BYTES( p_box->data.p_stsh->i_entry_count );
1730
1731 p_box->data.p_stsh->i_shadowed_sample_number =
1732 calloc( p_box->data.p_stsh->i_entry_count, sizeof(uint32_t) );
1733 p_box->data.p_stsh->i_sync_sample_number =
1734 calloc( p_box->data.p_stsh->i_entry_count, sizeof(uint32_t) );
1735
1736 if( p_box->data.p_stsh->i_shadowed_sample_number == NULL
1737 || p_box->data.p_stsh->i_sync_sample_number == NULL )
1738 {
1739 MP4_READBOX_EXIT( 0 );
1740 }
1741
1742 for( i = 0; (i < p_box->data.p_stss->i_entry_count )&&( i_read >= 8 ); i++ )
1743 {
1744
1745 MP4_GET4BYTES( p_box->data.p_stsh->i_shadowed_sample_number[i] );
1746 MP4_GET4BYTES( p_box->data.p_stsh->i_sync_sample_number[i] );
1747 }
1748
1749 #ifdef MP4_VERBOSE
1750 msg_Dbg( p_stream, "read box: \"stsh\" entry-count %d",
1751 p_box->data.p_stsh->i_entry_count );
1752 #endif
1753 MP4_READBOX_EXIT( 1 );
1754 }
1755
1756
1757 static int MP4_ReadBox_stdp( stream_t *p_stream, MP4_Box_t *p_box )
1758 {
1759 unsigned int i;
1760
1761 MP4_READBOX_ENTER( MP4_Box_data_stdp_t );
1762
1763 MP4_GETVERSIONFLAGS( p_box->data.p_stdp );
1764
1765 p_box->data.p_stdp->i_priority =
1766 calloc( i_read / 2, sizeof(uint16_t) );
1767
1768 for( i = 0; i < i_read / 2 ; i++ )
1769 {
1770
1771 MP4_GET2BYTES( p_box->data.p_stdp->i_priority[i] );
1772 }
1773
1774 #ifdef MP4_VERBOSE
1775 msg_Dbg( p_stream, "read box: \"stdp\" entry-count %"PRId64,
1776 i_read / 2 );
1777
1778 #endif
1779 MP4_READBOX_EXIT( 1 );
1780 }
1781
1782 static void MP4_FreeBox_stdp( MP4_Box_t *p_box )
1783 {
1784 FREENULL( p_box->data.p_stdp->i_priority );
1785 }
1786
1787 static void MP4_FreeBox_padb( MP4_Box_t *p_box )
1788 {
1789 FREENULL( p_box->data.p_padb->i_reserved1 );
1790 FREENULL( p_box->data.p_padb->i_pad2 );
1791 FREENULL( p_box->data.p_padb->i_reserved2 );
1792 FREENULL( p_box->data.p_padb->i_pad1 );
1793 }
1794
1795 static int MP4_ReadBox_padb( stream_t *p_stream, MP4_Box_t *p_box )
1796 {
1797 unsigned int i;
1798 uint32_t count;
1799
1800 MP4_READBOX_ENTER( MP4_Box_data_padb_t );
1801
1802 MP4_GETVERSIONFLAGS( p_box->data.p_padb );
1803
1804 MP4_GET4BYTES( p_box->data.p_padb->i_sample_count );
1805 count = (p_box->data.p_padb->i_sample_count + 1) / 2;
1806
1807 p_box->data.p_padb->i_reserved1 = calloc( count, sizeof(uint16_t) );
1808 p_box->data.p_padb->i_pad2 = calloc( count, sizeof(uint16_t) );
1809 p_box->data.p_padb->i_reserved2 = calloc( count, sizeof(uint16_t) );
1810 p_box->data.p_padb->i_pad1 = calloc( count, sizeof(uint16_t) );
1811 if( p_box->data.p_padb->i_reserved1 == NULL
1812 || p_box->data.p_padb->i_pad2 == NULL
1813 || p_box->data.p_padb->i_reserved2 == NULL
1814 || p_box->data.p_padb->i_pad1 == NULL )
1815 {
1816 MP4_READBOX_EXIT( 0 );
1817 }
1818
1819 for( i = 0; i < i_read / 2 ; i++ )
1820 {
1821 if( i >= count )
1822 {
1823 MP4_READBOX_EXIT( 0 );
1824 }
1825 p_box->data.p_padb->i_reserved1[i] = ( (*p_peek) >> 7 )&0x01;
1826 p_box->data.p_padb->i_pad2[i] = ( (*p_peek) >> 4 )&0x07;
1827 p_box->data.p_padb->i_reserved1[i] = ( (*p_peek) >> 3 )&0x01;
1828 p_box->data.p_padb->i_pad1[i] = ( (*p_peek) )&0x07;
1829
1830 p_peek += 1; i_read -= 1;
1831 }
1832
1833 #ifdef MP4_VERBOSE
1834 msg_Dbg( p_stream, "read box: \"stdp\" entry-count %"PRId64,
1835 i_read / 2 );
1836
1837 #endif
1838 MP4_READBOX_EXIT( 1 );
1839 }
1840
1841 static void MP4_FreeBox_elst( MP4_Box_t *p_box )
1842 {
1843 FREENULL( p_box->data.p_elst->i_segment_duration );
1844 FREENULL( p_box->data.p_elst->i_media_time );
1845 FREENULL( p_box->data.p_elst->i_media_rate_integer );
1846 FREENULL( p_box->data.p_elst->i_media_rate_fraction );
1847 }
1848
1849 static int MP4_ReadBox_elst( stream_t *p_stream, MP4_Box_t *p_box )
1850 {
1851 unsigned int i;
1852
1853 MP4_READBOX_ENTER( MP4_Box_data_elst_t );
1854
1855 MP4_GETVERSIONFLAGS( p_box->data.p_elst );
1856
1857
1858 MP4_GET4BYTES( p_box->data.p_elst->i_entry_count );
1859
1860 p_box->data.p_elst->i_segment_duration =
1861 calloc( p_box->data.p_elst->i_entry_count, sizeof(uint64_t) );
1862 p_box->data.p_elst->i_media_time =
1863 calloc( p_box->data.p_elst->i_entry_count, sizeof(uint64_t) );
1864 p_box->data.p_elst->i_media_rate_integer =
1865 calloc( p_box->data.p_elst->i_entry_count, sizeof(uint16_t) );
1866 p_box->data.p_elst->i_media_rate_fraction =
1867 calloc( p_box->data.p_elst->i_entry_count, sizeof(uint16_t) );
1868 if( p_box->data.p_elst->i_segment_duration == NULL
1869 || p_box->data.p_elst->i_media_time == NULL
1870 || p_box->data.p_elst->i_media_rate_integer == NULL
1871 || p_box->data.p_elst->i_media_rate_fraction == NULL )
1872 {
1873 MP4_READBOX_EXIT( 0 );
1874 }
1875
1876
1877 for( i = 0; i < p_box->data.p_elst->i_entry_count; i++ )
1878 {
1879 if( p_box->data.p_elst->i_version == 1 )
1880 {
1881
1882 MP4_GET8BYTES( p_box->data.p_elst->i_segment_duration[i] );
1883
1884 MP4_GET8BYTES( p_box->data.p_elst->i_media_time[i] );
1885 }
1886 else
1887 {
1888
1889 MP4_GET4BYTES( p_box->data.p_elst->i_segment_duration[i] );
1890
1891 MP4_GET4BYTES( p_box->data.p_elst->i_media_time[i] );
1892 p_box->data.p_elst->i_media_time[i] = (int32_t)p_box->data.p_elst->i_media_time[i];
1893 }
1894
1895 MP4_GET2BYTES( p_box->data.p_elst->i_media_rate_integer[i] );
1896 MP4_GET2BYTES( p_box->data.p_elst->i_media_rate_fraction[i] );
1897 }
1898
1899 #ifdef MP4_VERBOSE
1900 msg_Dbg( p_stream, "read box: \"elst\" entry-count %lu",
1901 (unsigned long)p_box->data.p_elst->i_entry_count );
1902 #endif
1903 MP4_READBOX_EXIT( 1 );
1904 }
1905
1906 static int MP4_ReadBox_cprt( stream_t *p_stream, MP4_Box_t *p_box )
1907 {
1908 unsigned int i_language;
1909 unsigned int i;
1910
1911 MP4_READBOX_ENTER( MP4_Box_data_cprt_t );
1912
1913 MP4_GETVERSIONFLAGS( p_box->data.p_cprt );
1914
1915 i_language = GetWBE( p_peek );
1916 for( i = 0; i < 3; i++ )
1917 {
1918 p_box->data.p_cprt->i_language[i] =
1919 ( ( i_language >> ( (2-i)*5 ) )&0x1f ) + 0x60;
1920 }
1921 p_peek += 2; i_read -= 2;
1922 MP4_GETSTRINGZ( p_box->data.p_cprt->psz_notice );
1923
1924 #ifdef MP4_VERBOSE
1925 msg_Dbg( p_stream, "read box: \"cprt\" language %c%c%c notice %s",
1926 p_box->data.p_cprt->i_language[0],
1927 p_box->data.p_cprt->i_language[1],
1928 p_box->data.p_cprt->i_language[2],
1929 p_box->data.p_cprt->psz_notice );
1930
1931 #endif
1932 MP4_READBOX_EXIT( 1 );
1933 }
1934
1935 static void MP4_FreeBox_cprt( MP4_Box_t *p_box )
1936 {
1937 FREENULL( p_box->data.p_cprt->psz_notice );
1938 }
1939
1940
1941 static int MP4_ReadBox_dcom( stream_t *p_stream, MP4_Box_t *p_box )
1942 {
1943 MP4_READBOX_ENTER( MP4_Box_data_dcom_t );
1944
1945 MP4_GETFOURCC( p_box->data.p_dcom->i_algorithm );
1946 #ifdef MP4_VERBOSE
1947 msg_Dbg( p_stream,
1948 "read box: \"dcom\" compression algorithm : %4.4s",
1949 (char*)&p_box->data.p_dcom->i_algorithm );
1950 #endif
1951 MP4_READBOX_EXIT( 1 );
1952 }
1953
1954 static int MP4_ReadBox_cmvd( stream_t *p_stream, MP4_Box_t *p_box )
1955 {
1956 MP4_READBOX_ENTER( MP4_Box_data_cmvd_t );
1957
1958 MP4_GET4BYTES( p_box->data.p_cmvd->i_uncompressed_size );
1959
1960 p_box->data.p_cmvd->i_compressed_size = i_read;
1961
1962 if( !( p_box->data.p_cmvd->p_data = malloc( i_read ) ) )
1963 return( 1 );
1964
1965 /* now copy compressed data */
1966 memcpy( p_box->data.p_cmvd->p_data,
1967 p_peek,
1968 i_read);
1969
1970 p_box->data.p_cmvd->b_compressed = 1;
1971
1972 #ifdef MP4_VERBOSE
1973 msg_Dbg( p_stream, "read box: \"cmvd\" compressed data size %d",
1974 p_box->data.p_cmvd->i_compressed_size );
1975 #endif
1976
1977 MP4_READBOX_EXIT( 1 );
1978 }
1979 static void MP4_FreeBox_cmvd( MP4_Box_t *p_box )
1980 {
1981 FREENULL( p_box->data.p_cmvd->p_data );
1982 }
1983
1984
1985 static int MP4_ReadBox_cmov( stream_t *p_stream, MP4_Box_t *p_box )
1986 {
1987 MP4_Box_t *p_dcom;
1988 MP4_Box_t *p_cmvd;
1989
1990 #ifdef HAVE_ZLIB_H
1991 stream_t *p_stream_memory;
1992 z_stream z_data;
1993 uint8_t *p_data;
1994 int i_result;
1995 #endif
1996
1997 if( !( p_box->data.p_cmov = malloc( sizeof( MP4_Box_data_cmov_t ) ) ) )
1998 return 0;
1999 memset( p_box->data.p_cmov, 0, sizeof( MP4_Box_data_cmov_t ) );
2000
2001 if( !p_box->p_father ||
2002 ( p_box->p_father->i_type != FOURCC_moov &&
2003 p_box->p_father->i_type != FOURCC_foov ) )
2004 {
2005 msg_Warn( p_stream, "Read box: \"cmov\" box alone" );
2006 return 1;
2007 }
2008
2009 if( !MP4_ReadBoxContainer( p_stream, p_box ) )
2010 {
2011 return 0;
2012 }
2013
2014 if( ( p_dcom = MP4_BoxGet( p_box, "dcom" ) ) == NULL ||
2015 ( p_cmvd = MP4_BoxGet( p_box, "cmvd" ) ) == NULL ||
2016 p_cmvd->data.p_cmvd->p_data == NULL )
2017 {
2018 msg_Warn( p_stream, "read box: \"cmov\" incomplete" );
2019 return 0;
2020 }
2021
2022 if( p_dcom->data.p_dcom->i_algorithm != FOURCC_zlib )
2023 {
2024 msg_Dbg( p_stream, "read box: \"cmov\" compression algorithm : %4.4s "
2025 "not supported", (char*)&p_dcom->data.p_dcom->i_algorithm );
2026 return 0;
2027 }
2028
2029 #ifndef HAVE_ZLIB_H
2030 msg_Dbg( p_stream, "read box: \"cmov\" zlib unsupported" );
2031 return 0;
2032
2033 #else
2034 /* decompress data */
2035 /* allocate a new buffer */
2036 if( !( p_data = malloc( p_cmvd->data.p_cmvd->i_uncompressed_size ) ) )
2037 return 0;
2038 /* init default structures */
2039 z_data.next_in = p_cmvd->data.p_cmvd->p_data;
2040 z_data.avail_in = p_cmvd->data.p_cmvd->i_compressed_size;
2041 z_data.next_out = p_data;
2042 z_data.avail_out = p_cmvd->data.p_cmvd->i_uncompressed_size;
2043 z_data.zalloc = (alloc_func)Z_NULL;
2044 z_data.zfree = (free_func)Z_NULL;
2045 z_data.opaque = (voidpf)Z_NULL;
2046
2047 /* init zlib */
2048 if( inflateInit( &z_data ) != Z_OK )
2049 {
2050 msg_Err( p_stream, "read box: \"cmov\" error while uncompressing" );
2051 free( p_data );
2052 return 0;
2053 }
2054
2055 /* uncompress */
2056 i_result = inflate( &z_data, Z_NO_FLUSH );
2057 if( i_result != Z_OK && i_result != Z_STREAM_END )
2058 {
2059 msg_Err( p_stream, "read box: \"cmov\" error while uncompressing" );
2060 free( p_data );
2061 return 0;
2062 }
2063
2064 if( p_cmvd->data.p_cmvd->i_uncompressed_size != z_data.total_out )
2065 {
2066 msg_Warn( p_stream, "read box: \"cmov\" uncompressing data size "
2067 "mismatch" );
2068 }
2069 p_cmvd->data.p_cmvd->i_uncompressed_size = z_data.total_out;
2070
2071 /* close zlib */
2072 if( inflateEnd( &z_data ) != Z_OK )
2073 {
2074 msg_Warn( p_stream, "read box: \"cmov\" error while uncompressing "
2075 "data (ignored)" );
2076 }
2077
2078 free( p_cmvd->data.p_cmvd->p_data );
2079 p_cmvd->data.p_cmvd->p_data = p_data;
2080 p_cmvd->data.p_cmvd->b_compressed = 0;
2081
2082 msg_Dbg( p_stream, "read box: \"cmov\" box succesfully uncompressed" );
2083
2084 /* now create a memory stream */
2085 p_stream_memory =
2086 stream_MemoryNew( VLC_OBJECT(p_stream), p_cmvd->data.p_cmvd->p_data,
2087 p_cmvd->data.p_cmvd->i_uncompressed_size, true );
2088
2089 /* and read uncompressd moov */
2090 p_box->data.p_cmov->p_moov = MP4_ReadBox( p_stream_memory, NULL );
2091
2092 stream_Delete( p_stream_memory );
2093
2094 #ifdef MP4_VERBOSE
2095 msg_Dbg( p_stream, "read box: \"cmov\" compressed movie header completed");
2096 #endif
2097
2098 return p_box->data.p_cmov->p_moov ? 1 : 0;
2099 #endif /* HAVE_ZLIB_H */
2100 }
2101
2102 static int MP4_ReadBox_rdrf( stream_t *p_stream, MP4_Box_t *p_box )
2103 {
2104 uint32_t i_len;
2105 MP4_READBOX_ENTER( MP4_Box_data_rdrf_t );
2106
2107 MP4_GETVERSIONFLAGS( p_box->data.p_rdrf );
2108 MP4_GETFOURCC( p_box->data.p_rdrf->i_ref_type );
2109 MP4_GET4BYTES( i_len );
2110 i_len++;
2111
2112 if( i_len > 0 )
2113 {
2114 uint32_t i;
2115 p_box->data.p_rdrf->psz_ref = malloc( i_len );
2116 if( p_box->data.p_rdrf->psz_ref == NULL )
2117 MP4_READBOX_EXIT( 0 );
2118 i_len--;
2119
2120 for( i = 0; i < i_len; i++ )
2121 {
2122 MP4_GET1BYTE( p_box->data.p_rdrf->psz_ref[i] );
2123 }
2124 p_box->data.p_rdrf->psz_ref[i_len] = '\0';
2125 }
2126 else
2127 {
2128 p_box->data.p_rdrf->psz_ref = NULL;
2129 }
2130
2131 #ifdef MP4_VERBOSE
2132 msg_Dbg( p_stream,
2133 "read box: \"rdrf\" type:%4.4s ref %s",
2134 (char*)&p_box->data.p_rdrf->i_ref_type,
2135 p_box->data.p_rdrf->psz_ref );
2136 #endif
2137 MP4_READBOX_EXIT( 1 );
2138 }
2139
2140 static void MP4_FreeBox_rdrf( MP4_Box_t *p_box )
2141 {
2142 FREENULL( p_box->data.p_rdrf->psz_ref );
2143 }
2144
2145
2146 static int MP4_ReadBox_rmdr( stream_t *p_stream, MP4_Box_t *p_box )
2147 {
2148 MP4_READBOX_ENTER( MP4_Box_data_rmdr_t );
2149
2150 MP4_GETVERSIONFLAGS( p_box->data.p_rmdr );
2151
2152 MP4_GET4BYTES( p_box->data.p_rmdr->i_rate );
2153
2154 #ifdef MP4_VERBOSE
2155 msg_Dbg( p_stream,
2156 "read box: \"rmdr\" rate:%d",
2157 p_box->data.p_rmdr->i_rate );
2158 #endif
2159 MP4_READBOX_EXIT( 1 );
2160 }
2161
2162 static int MP4_ReadBox_rmqu( stream_t *p_stream, MP4_Box_t *p_box )
2163 {
2164 MP4_READBOX_ENTER( MP4_Box_data_rmqu_t );
2165
2166 MP4_GET4BYTES( p_box->data.p_rmqu->i_quality );
2167
2168 #ifdef MP4_VERBOSE
2169 msg_Dbg( p_stream,
2170 "read box: \"rmqu\" quality:%d",
2171 p_box->data.p_rmqu->i_quality );
2172 #endif
2173 MP4_READBOX_EXIT( 1 );
2174 }
2175
2176 static int MP4_ReadBox_rmvc( stream_t *p_stream, MP4_Box_t *p_box )
2177 {
2178 MP4_READBOX_ENTER( MP4_Box_data_rmvc_t );
2179 MP4_GETVERSIONFLAGS( p_box->data.p_rmvc );
2180
2181 MP4_GETFOURCC( p_box->data.p_rmvc->i_gestaltType );
2182 MP4_GET4BYTES( p_box->data.p_rmvc->i_val1 );
2183 MP4_GET4BYTES( p_box->data.p_rmvc->i_val2 );
2184 MP4_GET2BYTES( p_box->data.p_rmvc->i_checkType );
2185
2186 #ifdef MP4_VERBOSE
2187 msg_Dbg( p_stream,
2188 "read box: \"rmvc\" gestaltType:%4.4s val1:0x%x val2:0x%x checkType:0x%x",
2189 (char*)&p_box->data.p_rmvc->i_gestaltType,
2190 p_box->data.p_rmvc->i_val1,p_box->data.p_rmvc->i_val2,
2191 p_box->data.p_rmvc->i_checkType );
2192 #endif
2193
2194 MP4_READBOX_EXIT( 1 );
2195 }
2196
2197 static int MP4_ReadBox_frma( stream_t *p_stream, MP4_Box_t *p_box )
2198 {
2199 MP4_READBOX_ENTER( MP4_Box_data_frma_t );
2200
2201 MP4_GETFOURCC( p_box->data.p_frma->i_type );
2202
2203 #ifdef MP4_VERBOSE
2204 msg_Dbg( p_stream, "read box: \"frma\" i_type:%4.4s",
2205 (char *)&p_box->data.p_frma->i_type );
2206 #endif
2207
2208 MP4_READBOX_EXIT( 1 );
2209 }
2210
2211 static int MP4_ReadBox_skcr( stream_t *p_stream, MP4_Box_t *p_box )
2212 {
2213 MP4_READBOX_ENTER( MP4_Box_data_frma_t );
2214
2215 MP4_GET4BYTES( p_box->data.p_skcr->i_init );
2216 MP4_GET4BYTES( p_box->data.p_skcr->i_encr );
2217 MP4_GET4BYTES( p_box->data.p_skcr->i_decr );
2218
2219 #ifdef MP4_VERBOSE
2220 msg_Dbg( p_stream, "read box: \"skcr\" i_init:%d i_encr:%d i_decr:%d",
2221 p_box->data.p_skcr->i_init,
2222 p_box->data.p_skcr->i_encr,
2223 p_box->data.p_skcr->i_decr );
2224 #endif
2225
2226 MP4_READBOX_EXIT( 1 );
2227 }
2228
2229 static int MP4_ReadBox_drms( stream_t *p_stream, MP4_Box_t *p_box )
2230 {
2231 MP4_Box_t *p_drms_box = p_box;
2232 void *p_drms = NULL;
2233
2234 MP4_READBOX_ENTER( uint8_t );
2235
2236 do
2237 {
2238 p_drms_box = p_drms_box->p_father;
2239 } while( p_drms_box && p_drms_box->i_type != FOURCC_drms
2240 && p_drms_box->i_type != FOURCC_drmi );
2241
2242 if( p_drms_box && p_drms_box->i_type == FOURCC_drms )
2243 p_drms = p_drms_box->data.p_sample_soun->p_drms;
2244 else if( p_drms_box && p_drms_box->i_type == FOURCC_drmi )
2245 p_drms = p_drms_box->data.p_sample_vide->p_drms;
2246
2247 if( p_drms_box && p_drms )
2248 {
2249 int i_ret = drms_init( p_drms, p_box->i_type, p_peek, i_read );
2250 if( i_ret )
2251 {
2252 const char *psz_error;
2253
2254 switch( i_ret )
2255 {
2256 case -1: psz_error = "unimplemented"; break;
2257 case -2: psz_error = "invalid argument"; break;
2258 case -3: psz_error = "could not get system key"; break;
2259 case -4: psz_error = "could not get SCI data"; break;
2260 case -5: psz_error = "no user key found in SCI data"; break;
2261 case -6: psz_error = "invalid user key"; break;
2262 default: psz_error = "unknown error"; break;
2263 }
2264 if MP4_BOX_TYPE_ASCII()
2265 msg_Err( p_stream, "drms_init(%4.4s) failed (%s)",
2266 (char *)&p_box->i_type, psz_error );
2267 else
2268 msg_Err( p_stream, "drms_init(c%3.3s) failed (%s)",
2269 (char *)&p_box->i_type+1, psz_error );
2270
2271 drms_free( p_drms );
2272
2273 if( p_drms_box->i_type == FOURCC_drms )
2274 p_drms_box->data.p_sample_soun->p_drms = NULL;
2275 else if( p_drms_box->i_type == FOURCC_drmi )
2276 p_drms_box->data.p_sample_vide->p_drms = NULL;
2277 }
2278 }
2279
2280 MP4_READBOX_EXIT( 1 );
2281 }
2282
2283 static int MP4_ReadBox_0xa9xxx( stream_t *p_stream, MP4_Box_t *p_box )
2284 {
2285 uint16_t i16;
2286
2287 MP4_READBOX_ENTER( MP4_Box_data_0xa9xxx_t );
2288
2289 p_box->data.p_0xa9xxx->psz_text = NULL;
2290
2291 MP4_GET2BYTES( i16 );
2292
2293 if( i16 > 0 )
2294 {
2295 int i_length = i16;
2296
2297 MP4_GET2BYTES( i16 );
2298 if( i_length >= i_read ) i_length = i_read + 1;
2299
2300 p_box->data.p_0xa9xxx->psz_text = malloc( i_length );
2301 if( p_box->data.p_0xa9xxx->psz_text == NULL )
2302 MP4_READBOX_EXIT( 0 );
2303
2304 i_length--;
2305 memcpy( p_box->data.p_0xa9xxx->psz_text,
2306 p_peek, i_length );
2307 p_box->data.p_0xa9xxx->psz_text[i_length] = '\0';
2308
2309 #ifdef MP4_VERBOSE
2310 msg_Dbg( p_stream,
2311 "read box: \"c%3.3s\" text=`%s'",
2312 ((char*)&p_box->i_type + 1),
2313 p_box->data.p_0xa9xxx->psz_text );
2314 #endif
2315 }
2316 else
2317 {
2318 /* try iTune/Quicktime format, rewind to start */
2319 p_peek -= 2; i_read += 2;
2320 // we are expecting a 'data' box
2321 uint32_t i_data_len;
2322 uint32_t i_data_tag;
2323
2324 MP4_GET4BYTES( i_data_len );
2325 if( i_data_len > i_read ) i_data_len = i_read;
2326 MP4_GETFOURCC( i_data_tag );
2327 if( (i_data_len > 0) && (i_data_tag == VLC_FOURCC('d', 'a', 't', 'a')) )
2328 {
2329 /* data box contains a version/flags field */
2330 uint32_t i_version;
2331 uint32_t i_reserved;
2332 MP4_GET4BYTES( i_version );
2333 MP4_GET4BYTES( i_reserved );
2334 // version should be 0, flags should be 1 for text, 0 for data
2335 if( ( i_version == 0x00000001 ) && (i_data_len >= 12 ) )
2336 {
2337 // the rest is the text
2338 i_data_len -= 12;
2339 p_box->data.p_0xa9xxx->psz_text = malloc( i_data_len + 1 );
2340 if( p_box->data.p_0xa9xxx->psz_text == NULL )
2341 MP4_READBOX_EXIT( 0 );
2342
2343 memcpy( p_box->data.p_0xa9xxx->psz_text,
2344 p_peek, i_data_len );
2345 p_box->data.p_0xa9xxx->psz_text[i_data_len] = '\0';
2346 #ifdef MP4_VERBOSE
2347 msg_Dbg( p_stream,
2348 "read box: \"c%3.3s\" text=`%s'",
2349 ((char*)&p_box->i_type+1),
2350 p_box->data.p_0xa9xxx->psz_text );
2351 #endif
2352 }
2353 else
2354 {
2355 // TODO: handle data values for ID3 tag values, track num or cover art,etc...
2356 }
2357 }
2358 }
2359
2360 MP4_READBOX_EXIT( 1 );
2361 }
2362 static void MP4_FreeBox_0xa9xxx( MP4_Box_t *p_box )
2363 {
2364 FREENULL( p_box->data.p_0xa9xxx->psz_text );
2365 }
2366
2367 /* Chapter support */
2368 static void MP4_FreeBox_chpl( MP4_Box_t *p_box )
2369 {
2370 MP4_Box_data_chpl_t *p_chpl = p_box->data.p_chpl;
2371 int i;
2372 for( i = 0; i < p_chpl->i_chapter; i++ )
2373 free( p_chpl->chapter[i].psz_name );
2374 }
2375
2376 static int MP4_ReadBox_chpl( stream_t *p_stream, MP4_Box_t *p_box )
2377 {
2378 MP4_Box_data_chpl_t *p_chpl;
2379 uint32_t i_dummy;
2380 int i;
2381 MP4_READBOX_ENTER( MP4_Box_data_chpl_t );
2382
2383 p_chpl = p_box->data.p_chpl;
2384
2385 MP4_GETVERSIONFLAGS( p_chpl );
2386
2387 MP4_GET4BYTES( i_dummy );
2388
2389 MP4_GET1BYTE( p_chpl->i_chapter );
2390
2391 for( i = 0; i < p_chpl->i_chapter; i++ )
2392 {
2393 uint64_t i_start;
2394 uint8_t i_len;
2395 int i_copy;
2396 MP4_GET8BYTES( i_start );
2397 MP4_GET1BYTE( i_len );
2398
2399 p_chpl->chapter[i].psz_name = malloc( i_len + 1 );
2400 if( !p_chpl->chapter[i].psz_name )
2401 goto error;
2402
2403 i_copy = __MIN( i_len, i_read );
2404 if( i_copy > 0 )
2405 memcpy( p_chpl->chapter[i].psz_name, p_peek, i_copy );
2406 p_chpl->chapter[i].psz_name[i_copy] = '\0';
2407 p_chpl->chapter[i].i_start = i_start;
2408
2409 p_peek += i_copy;
2410 i_read -= i_copy;
2411 }
2412 /* Bubble sort by increasing start date */
2413 do
2414 {
2415 for( i = 0; i < p_chpl->i_chapter - 1; i++ )
2416 {
2417 if( p_chpl->chapter[i].i_start > p_chpl->chapter[i+1].i_start )
2418 {
2419 char *psz = p_chpl->chapter[i+1].psz_name;
2420 int64_t i64 = p_chpl->chapter[i+1].i_start;
2421
2422 p_chpl->chapter[i+1].psz_name = p_chpl->chapter[i].psz_name;
2423 p_chpl->chapter[i+1].i_start = p_chpl->chapter[i].i_start;
2424
2425 p_chpl->chapter[i].psz_name = psz;
2426 p_chpl->chapter[i].i_start = i64;
2427
2428 i = -1;
2429 break;
2430 }
2431 }
2432 } while( i == -1 );
2433
2434 #ifdef MP4_VERBOSE
2435 msg_Dbg( p_stream, "read box: \"chpl\" %d chapters",
2436 p_chpl->i_chapter );
2437 #endif
2438 MP4_READBOX_EXIT( 1 );
2439
2440 error:
2441 MP4_READBOX_EXIT( 0 );
2442 }
2443
2444 static int MP4_ReadBox_tref_generic( stream_t *p_stream, MP4_Box_t *p_box )
2445 {
2446 unsigned int i;
2447 MP4_READBOX_ENTER( MP4_Box_data_tref_generic_t );
2448
2449 p_box->data.p_tref_generic->i_track_ID = NULL;
2450 p_box->data.p_tref_generic->i_entry_count = i_read / sizeof(uint32_t);
2451 if( p_box->data.p_tref_generic->i_entry_count > 0 )
2452 p_box->data.p_tref_generic->i_track_ID = calloc( p_box->data.p_tref_generic->i_entry_count, sizeof(uint32_t) );
2453 if( p_box->data.p_tref_generic->i_track_ID == NULL )
2454 MP4_READBOX_EXIT( 0 );
2455
2456 for( i = 0; i < p_box->data.p_tref_generic->i_entry_count; i++ )
2457 {
2458 MP4_GET4BYTES( p_box->data.p_tref_generic->i_track_ID[i] );
2459 }
2460 #ifdef MP4_VERBOSE
2461 msg_Dbg( p_stream, "read box: \"chap\" %d references",
2462 p_box->data.p_tref_generic->i_entry_count );
2463 #endif
2464
2465 MP4_READBOX_EXIT( 1 );
2466 }
2467 static void MP4_FreeBox_tref_generic( MP4_Box_t *p_box )
2468 {
2469 FREENULL( p_box->data.p_tref_generic->i_track_ID );
2470 }
2471
2472 static int MP4_ReadBox_meta( stream_t *p_stream, MP4_Box_t *p_box )
2473 {
2474 uint8_t meta_data[8];
2475 int i_actually_read;
2476
2477 // skip over box header
2478 i_actually_read = stream_Read( p_stream, meta_data, 8 );
2479 if( i_actually_read < 8 )
2480 return 0;
2481
2482 /* meta content starts with a 4 byte version/flags value (should be 0) */
2483 i_actually_read = stream_Read( p_stream, meta_data, 4 );
2484 if( i_actually_read < 4 )
2485 return 0;
2486
2487 /* then it behaves like a container */
2488 return MP4_ReadBoxContainerRaw( p_stream, p_box );
2489 }
2490
2491 /* For generic */
2492 static int MP4_ReadBox_default( stream_t *p_stream, MP4_Box_t *p_box )
2493 {
2494 if( !p_box->p_father )
2495 {
2496 goto unknown;
2497 }
2498 if( p_box->p_father->i_type == FOURCC_stsd )
2499 {
2500 MP4_Box_t *p_mdia = MP4_BoxGet( p_box, "../../../.." );
2501 MP4_Box_t *p_hdlr;
2502
2503 if( p_mdia == NULL || p_mdia->i_type != FOURCC_mdia ||
2504 (p_hdlr = MP4_BoxGet( p_mdia, "hdlr" )) == NULL )
2505 {
2506 goto unknown;
2507 }
2508 switch( p_hdlr->data.p_hdlr->i_handler_type )
2509 {
2510 case FOURCC_soun:
2511 return MP4_ReadBox_sample_soun( p_stream, p_box );
2512 case FOURCC_vide:
2513 return MP4_ReadBox_sample_vide( p_stream, p_box );
2514 case FOURCC_text:
2515 return MP4_ReadBox_sample_text( p_stream, p_box );
2516 case FOURCC_tx3g:
2517 case FOURCC_sbtl:
2518 return MP4_ReadBox_sample_tx3g( p_stream, p_box );
2519 default:
2520 msg_Warn( p_stream,
2521 "unknown handler type in stsd (incompletely loaded)" );
2522 return 1;
2523 }
2524 }
2525
2526 unknown:
2527 if MP4_BOX_TYPE_ASCII()
2528 msg_Warn( p_stream,
2529 "unknown box type %4.4s (incompletely loaded)",
2530 (char*)&p_box->i_type );
2531 else
2532 msg_Warn( p_stream,
2533 "unknown box type c%3.3s (incompletely loaded)",
2534 (char*)&p_box->i_type+1 );
2535
2536 return 1;
2537 }
2538
2539 /**** ------------------------------------------------------------------- ****/
2540 /**** "Higher level" Functions ****/
2541 /**** ------------------------------------------------------------------- ****/
2542
2543 static const struct
2544 {
2545 uint32_t i_type;
2546 int (*MP4_ReadBox_function )( stream_t *p_stream, MP4_Box_t *p_box );
2547 void (*MP4_FreeBox_function )( MP4_Box_t *p_box );
2548 } MP4_Box_Function [] =
2549 {
2550 /* Containers */
2551 { FOURCC_moov, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2552 { FOURCC_trak, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2553 { FOURCC_mdia, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2554 { FOURCC_moof, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2555 { FOURCC_minf, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2556 { FOURCC_stbl, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2557 { FOURCC_dinf, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2558 { FOURCC_edts, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2559 { FOURCC_udta, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2560 { FOURCC_nmhd, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2561 { FOURCC_hnti, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2562 { FOURCC_rmra, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2563 { FOURCC_rmda, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2564 { FOURCC_tref, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2565 { FOURCC_gmhd, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2566 { FOURCC_wave, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2567 { FOURCC_ilst, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2568
2569 /* specific box */
2570 { FOURCC_ftyp, MP4_ReadBox_ftyp, MP4_FreeBox_ftyp },
2571 { FOURCC_cmov, MP4_ReadBox_cmov, MP4_FreeBox_Common },
2572 { FOURCC_mvhd, MP4_ReadBox_mvhd, MP4_FreeBox_Common },
2573 { FOURCC_tkhd, MP4_ReadBox_tkhd, MP4_FreeBox_Common },
2574 { FOURCC_mdhd, MP4_ReadBox_mdhd, MP4_FreeBox_Common },
2575 { FOURCC_hdlr, MP4_ReadBox_hdlr, MP4_FreeBox_hdlr },
2576 { FOURCC_vmhd, MP4_ReadBox_vmhd, MP4_FreeBox_Common },
2577 { FOURCC_smhd, MP4_ReadBox_smhd, MP4_FreeBox_Common },
2578 { FOURCC_hmhd, MP4_ReadBox_hmhd, MP4_FreeBox_Common },
2579 { FOURCC_url, MP4_ReadBox_url, MP4_FreeBox_url },
2580 { FOURCC_urn, MP4_ReadBox_urn, MP4_FreeBox_urn },
2581 { FOURCC_dref, MP4_ReadBox_dref, MP4_FreeBox_Common },
2582 { FOURCC_stts, MP4_ReadBox_stts, MP4_FreeBox_stts },
2583 { FOURCC_ctts, MP4_ReadBox_ctts, MP4_FreeBox_ctts },
2584 { FOURCC_stsd, MP4_ReadBox_stsd, MP4_FreeBox_Common },
2585 { FOURCC_stsz, MP4_ReadBox_stsz, MP4_FreeBox_stsz },
2586 { FOURCC_stsc, MP4_ReadBox_stsc, MP4_FreeBox_stsc },
2587 { FOURCC_stco, MP4_ReadBox_stco_co64, MP4_FreeBox_stco_co64 },
2588 { FOURCC_co64, MP4_ReadBox_stco_co64, MP4_FreeBox_stco_co64 },
2589 { FOURCC_stss, MP4_ReadBox_stss, MP4_FreeBox_stss },
2590 { FOURCC_stsh, MP4_ReadBox_stsh, MP4_FreeBox_stsh },
2591 { FOURCC_stdp, MP4_ReadBox_stdp, MP4_FreeBox_stdp },
2592 { FOURCC_padb, MP4_ReadBox_padb, MP4_FreeBox_padb },
2593 { FOURCC_elst, MP4_ReadBox_elst, MP4_FreeBox_elst },
2594 { FOURCC_cprt, MP4_ReadBox_cprt, MP4_FreeBox_cprt },
2595 { FOURCC_esds, MP4_ReadBox_esds, MP4_FreeBox_esds },
2596 { FOURCC_dcom, MP4_ReadBox_dcom, MP4_FreeBox_Common },
2597 { FOURCC_cmvd, MP4_ReadBox_cmvd, MP4_FreeBox_cmvd },
2598 { FOURCC_avcC, MP4_ReadBox_avcC, MP4_FreeBox_avcC },
2599 { FOURCC_dac3, MP4_ReadBox_dac3, MP4_FreeBox_Common },
2600 { FOURCC_enda, MP4_ReadBox_enda, MP4_FreeBox_Common },
2601 { FOURCC_gnre, MP4_ReadBox_gnre, MP4_FreeBox_Common },
2602
2603 /* Nothing to do with this box */
2604 { FOURCC_mdat, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2605 { FOURCC_skip, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2606 { FOURCC_free, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2607 { FOURCC_wide, MP4_ReadBoxSkip, MP4_FreeBox_Common },
2608
2609 /* for codecs */
2610 { FOURCC_soun, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2611 { FOURCC_ms02, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2612 { FOURCC_ms11, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2613 { FOURCC_ms55, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2614 { FOURCC__mp3, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2615 { FOURCC_mp4a, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2616 { FOURCC_twos, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2617 { FOURCC_sowt, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2618 { FOURCC_QDMC, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2619 { FOURCC_QDM2, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2620 { FOURCC_ima4, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2621 { FOURCC_IMA4, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2622 { FOURCC_dvi, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2623 { FOURCC_alaw, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2624 { FOURCC_ulaw, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2625 { FOURCC_raw, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2626 { FOURCC_MAC3, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2627 { FOURCC_MAC6, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2628 { FOURCC_Qclp, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2629 { FOURCC_samr, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2630 { FOURCC_sawb, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2631 { FOURCC_OggS, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2632 { FOURCC_alac, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2633
2634 { FOURCC_drmi, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2635 { FOURCC_vide, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2636 { FOURCC_mp4v, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2637 { FOURCC_SVQ1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2638 { FOURCC_SVQ3, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2639 { FOURCC_ZyGo, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2640 { FOURCC_DIVX, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2641 { FOURCC_XVID, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2642 { FOURCC_h263, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2643 { FOURCC_s263, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2644 { FOURCC_cvid, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2645 { FOURCC_3IV1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2646 { FOURCC_3iv1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2647 { FOURCC_3IV2, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2648 { FOURCC_3iv2, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2649 { FOURCC_3IVD, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2650 { FOURCC_3ivd, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2651 { FOURCC_3VID, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2652 { FOURCC_3vid, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2653 { FOURCC_mjpa, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2654 { FOURCC_mjpb, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2655 { FOURCC_qdrw, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2656 { FOURCC_mp2v, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2657 { FOURCC_hdv2, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2658
2659 { FOURCC_mjqt, MP4_ReadBox_default, NULL }, /* found in mjpa/b */
2660 { FOURCC_mjht, MP4_ReadBox_default, NULL },
2661
2662 { FOURCC_dvc, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2663 { FOURCC_dvp, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2664 { FOURCC_dv5n, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2665 { FOURCC_dv5p, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2666 { FOURCC_VP31, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2667 { FOURCC_vp31, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2668 { FOURCC_h264, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2669
2670 { FOURCC_jpeg, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2671 { FOURCC_avc1, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2672
2673 { FOURCC_yv12, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2674 { FOURCC_yuv2, MP4_ReadBox_sample_vide, MP4_FreeBox_sample_vide },
2675
2676 { FOURCC_mp4s, MP4_ReadBox_sample_mp4s, MP4_FreeBox_Common },
2677
2678 /* XXX there is 2 box where we could find this entry stbl and tref*/
2679 { FOURCC_hint, MP4_ReadBox_default, MP4_FreeBox_Common },
2680
2681 /* found in tref box */
2682 { FOURCC_dpnd, MP4_ReadBox_default, NULL },
2683 { FOURCC_ipir, MP4_ReadBox_default, NULL },
2684 { FOURCC_mpod, MP4_ReadBox_default, NULL },
2685 { FOURCC_chap, MP4_ReadBox_tref_generic, MP4_FreeBox_tref_generic },
2686
2687 /* found in hnti */
2688 { FOURCC_rtp, MP4_ReadBox_default, NULL },
2689
2690 /* found in rmra */
2691 { FOURCC_rdrf, MP4_ReadBox_rdrf, MP4_FreeBox_rdrf },
2692 { FOURCC_rmdr, MP4_ReadBox_rmdr, MP4_FreeBox_Common },
2693 { FOURCC_rmqu, MP4_ReadBox_rmqu, MP4_FreeBox_Common },
2694 { FOURCC_rmvc, MP4_ReadBox_rmvc, MP4_FreeBox_Common },
2695
2696 { FOURCC_drms, MP4_ReadBox_sample_soun, MP4_FreeBox_sample_soun },
2697 { FOURCC_sinf, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2698 { FOURCC_schi, MP4_ReadBoxContainer, MP4_FreeBox_Common },
2699 { FOURCC_user, MP4_ReadBox_drms, MP4_FreeBox_Common },
2700 { FOURCC_key, MP4_ReadBox_drms, MP4_FreeBox_Common },
2701 { FOURCC_iviv, MP4_ReadBox_drms, MP4_FreeBox_Common },
2702 { FOURCC_name, MP4_ReadBox_drms, MP4_FreeBox_Common },
2703 { FOURCC_priv, MP4_ReadBox_drms, MP4_FreeBox_Common },
2704 { FOURCC_frma, MP4_ReadBox_frma, MP4_FreeBox_Common },
2705 { FOURCC_skcr, MP4_ReadBox_skcr, MP4_FreeBox_Common },
2706
2707 /* found in udta */
2708 { FOURCC_0xa9nam,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2709 { FOURCC_0xa9aut,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2710 { FOURCC_0xa9cpy,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2711 { FOURCC_0xa9swr,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2712 { FOURCC_0xa9inf,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2713 { FOURCC_0xa9ART,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2714 { FOURCC_0xa9dir,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2715 { FOURCC_0xa9cmt,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2716 { FOURCC_0xa9req,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2717 { FOURCC_0xa9day,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2718 { FOURCC_0xa9des,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2719 { FOURCC_0xa9fmt,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2720 { FOURCC_0xa9prd,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2721 { FOURCC_0xa9prf,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2722 { FOURCC_0xa9src,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2723 { FOURCC_0xa9alb,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2724 { FOURCC_0xa9dis,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2725 { FOURCC_0xa9enc,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2726 { FOURCC_0xa9gen,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2727 { FOURCC_0xa9trk,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2728 { FOURCC_0xa9dsa,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2729 { FOURCC_0xa9hst,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2730 { FOURCC_0xa9url,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2731 { FOURCC_0xa9ope,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2732 { FOURCC_0xa9com,MP4_ReadBox_0xa9xxx, MP4_FreeBox_0xa9xxx },
2733
2734 { FOURCC_chpl, MP4_ReadBox_chpl, MP4_FreeBox_chpl },
2735
2736 /* iTunes/Quicktime meta info */
2737 { FOURCC_meta, MP4_ReadBox_meta, MP4_FreeBox_Common },
2738
2739 /* Last entry */
2740 { 0, MP4_ReadBox_default, NULL }
2741 };
2742
2743
2744
2745 /*****************************************************************************
2746 * MP4_ReadBox : parse the actual box and the children
2747 * XXX : Do not go to the next box
2748 *****************************************************************************/
2749 static MP4_Box_t *MP4_ReadBox( stream_t *p_stream, MP4_Box_t *p_father )
2750 {
2751 MP4_Box_t *p_box = calloc( 1, sizeof( MP4_Box_t ) ); /* Needed to ensure simple on error handler */
2752 unsigned int i_index;
2753
2754 if( p_box == NULL )
2755 return NULL;
2756
2757 if( !MP4_ReadBoxCommon( p_stream, p_box ) )
2758 {
2759 msg_Warn( p_stream, "cannot read one box" );
2760 free( p_box );
2761 return NULL;
2762 }
2763 if( !p_box->i_size )
2764 {
2765 msg_Dbg( p_stream, "found an empty box (null size)" );
2766 free( p_box );
2767 return NULL;
2768 }
2769 p_box->p_father = p_father;
2770
2771 /* Now search function to call */
2772 for( i_index = 0; ; i_index++ )
2773 {
2774 if( ( MP4_Box_Function[i_index].i_type == p_box->i_type )||
2775 ( MP4_Box_Function[i_index].i_type == 0 ) )
2776 {
2777 break;
2778 }
2779 }
2780
2781 if( !(MP4_Box_Function[i_index].MP4_ReadBox_function)( p_stream, p_box ) )
2782 {
2783 MP4_BoxFree( p_stream, p_box );
2784 return NULL;
2785 }
2786
2787 return p_box;
2788 }
2789
2790 /*****************************************************************************
2791 * MP4_FreeBox : free memory after read with MP4_ReadBox and all
2792 * the children
2793 *****************************************************************************/
2794 void MP4_BoxFree( stream_t *s, MP4_Box_t *p_box )
2795 {
2796 unsigned int i_index;
2797 MP4_Box_t *p_child;
2798
2799 if( !p_box )
2800 return; /* hehe */
2801
2802 for( p_child = p_box->p_first; p_child != NULL; )
2803 {
2804 MP4_Box_t *p_next;
2805
2806 p_next = p_child->p_next;
2807 MP4_BoxFree( s, p_child );
2808 p_child = p_next;
2809 }
2810
2811 /* Now search function to call */
2812 if( p_box->data.p_data )
2813 {
2814 for( i_index = 0; ; i_index++ )
2815 {
2816 if( ( MP4_Box_Function[i_index].i_type == p_box->i_type )||
2817 ( MP4_Box_Function[i_index].i_type == 0 ) )
2818 {
2819 break;
2820 }
2821 }
2822 if( MP4_Box_Function[i_index].MP4_FreeBox_function == NULL )
2823 {
2824 /* Should not happen */
2825 if MP4_BOX_TYPE_ASCII()
2826 msg_Warn( s,
2827 "cannot free box %4.4s, type unknown",
2828 (char*)&p_box->i_type );
2829 else
2830 msg_Warn( s,
2831 "cannot free box c%3.3s, type unknown",
2832 (char*)&p_box->i_type+1 );
2833 }
2834 else
2835 {
2836 MP4_Box_Function[i_index].MP4_FreeBox_function( p_box );
2837 }
2838 free( p_box->data.p_data );
2839 }
2840 free( p_box );
2841 }
2842
2843 /*****************************************************************************
2844 * MP4_BoxGetRoot : Parse the entire file, and create all boxes in memory
2845 *****************************************************************************
2846 * The first box is a virtual box "root" and is the father for all first
2847 * level boxes for the file, a sort of virtual contener
2848 *****************************************************************************/
2849 MP4_Box_t *MP4_BoxGetRoot( stream_t *s )
2850 {
2851 MP4_Box_t *p_root;
2852 stream_t *p_stream;
2853 int i_result;
2854
2855 p_root = malloc( sizeof( MP4_Box_t ) );
2856 if( p_root == NULL )
2857 return NULL;
2858
2859 p_root->i_pos = 0;
2860 p_root->i_type = VLC_FOURCC( 'r', 'o', 'o', 't' );
2861 p_root->i_shortsize = 1;
2862 p_root->i_size = stream_Size( s );
2863 CreateUUID( &p_root->i_uuid, p_root->i_type );
2864
2865 p_root->data.p_data = NULL;
2866 p_root->p_father = NULL;
2867 p_root->p_first = NULL;
2868 p_root->p_last = NULL;
2869 p_root->p_next = NULL;
2870
2871 p_stream = s;
2872
2873 i_result = MP4_ReadBoxContainerRaw( p_stream, p_root );
2874
2875 if( i_result )
2876 {
2877 MP4_Box_t *p_moov;
2878 MP4_Box_t *p_cmov;
2879
2880 /* check if there is a cmov, if so replace
2881 compressed moov by uncompressed one */
2882 if( ( ( p_moov = MP4_BoxGet( p_root, "moov" ) ) &&
2883 ( p_cmov = MP4_BoxGet( p_root, "moov/cmov" ) ) ) ||
2884 ( ( p_moov = MP4_BoxGet( p_root, "foov" ) ) &&
2885 ( p_cmov = MP4_BoxGet( p_root, "foov/cmov" ) ) ) )
2886 {
2887 /* rename the compressed moov as a box to skip */
2888 p_moov->i_type = FOURCC_skip;
2889
2890 /* get uncompressed p_moov */
2891 p_moov = p_cmov->data.p_cmov->p_moov;
2892 p_cmov->data.p_cmov->p_moov = NULL;
2893
2894 /* make p_root father of this new moov */
2895 p_moov->p_father = p_root;
2896
2897 /* insert this new moov box as first child of p_root */
2898 p_moov->p_next = p_root->p_first;
2899 p_root->p_first = p_moov;
2900 }
2901 }
2902
2903 return p_root;
2904 }
2905
2906
2907 static void __MP4_BoxDumpStructure( stream_t *s,
2908 MP4_Box_t *p_box, unsigned int i_level )
2909 {
2910 MP4_Box_t *p_child;
2911
2912 if( !i_level )
2913 {
2914 if MP4_BOX_TYPE_ASCII()
2915 msg_Dbg( s, "dumping root Box \"%4.4s\"",
2916 (char*)&p_box->i_type );
2917 else
2918 msg_Dbg( s, "dumping root Box \"c%3.3s\"",
2919 (char*)&p_box->i_type+1 );
2920 }
2921 else
2922 {
2923 unsigned int i;
2924
2925 char str[512];
2926 if( i_level >= (sizeof(str) - 1)/5 )
2927 return;
2928
2929 memset( str, ' ', sizeof(str) );
2930 for( i = 0; i < i_level; i++ )
2931 {
2932 str[i*5] = '|';
2933 }
2934 if( MP4_BOX_TYPE_ASCII() )
2935 snprintf( &str[i_level * 5], sizeof(str) - 5*i_level,
2936 "+ %4.4s size %d",
2937 (char*)&p_box->i_type, (uint32_t)p_box->i_size );
2938 else
2939 snprintf( &str[i_level * 5], sizeof(str) - 5*i_level,
2940 "+ c%3.3s size %d",
2941 (char*)&p_box->i_type+1, (uint32_t)p_box->i_size );
2942 msg_Dbg( s, "%s", str );
2943 }
2944 p_child = p_box->p_first;
2945 while( p_child )
2946 {
2947 __MP4_BoxDumpStructure( s, p_child, i_level + 1 );
2948 p_child = p_child->p_next;
2949 }
2950 }
2951
2952 void MP4_BoxDumpStructure( stream_t *s, MP4_Box_t *p_box )
2953 {
2954 __MP4_BoxDumpStructure( s, p_box, 0 );
2955 }
2956
2957
2958
2959 /*****************************************************************************
2960 *****************************************************************************
2961 **
2962 ** High level methods to acces an MP4 file
2963 **
2964 *****************************************************************************
2965 *****************************************************************************/
2966 static void __get_token( char **ppsz_path, char **ppsz_token, int *pi_number )
2967 {
2968 size_t i_len ;
2969 if( !*ppsz_path[0] )
2970 {
2971 *ppsz_token = NULL;
2972 *pi_number = 0;
2973 return;
2974 }
2975 i_len = 0;
2976 while( (*ppsz_path)[i_len] &&
2977 (*ppsz_path)[i_len] != '/' && (*ppsz_path)[i_len] != '[' )
2978 {
2979 i_len++;
2980 }
2981 if( !i_len && **ppsz_path == '/' )
2982 {
2983 i_len = 1;
2984 }
2985 *ppsz_token = malloc( i_len + 1 );
2986
2987 memcpy( *ppsz_token, *ppsz_path, i_len );
2988
2989 (*ppsz_token)[i_len] = '\0';
2990
2991 *ppsz_path += i_len;
2992
2993 if( **ppsz_path == '[' )
2994 {
2995 (*ppsz_path)++;
2996 *pi_number = strtol( *ppsz_path, NULL, 10 );
2997 while( **ppsz_path && **ppsz_path != ']' )
2998 {
2999 (*ppsz_path)++;
3000 }
3001 if( **ppsz_path == ']' )
3002 {
3003 (*ppsz_path)++;
3004 }
3005 }
3006 else
3007 {
3008 *pi_number = 0;
3009 }
3010 while( **ppsz_path == '/' )
3011 {
3012 (*ppsz_path)++;
3013 }
3014 }
3015
3016 static void __MP4_BoxGet( MP4_Box_t **pp_result,
3017 MP4_Box_t *p_box, const char *psz_fmt, va_list args)
3018 {
3019 char *psz_dup;
3020 char *psz_path;
3021
3022 if( !p_box )
3023 {
3024 *pp_result = NULL;
3025 return;
3026 }
3027
3028 if( vasprintf( &psz_path, psz_fmt, args ) == -1 )
3029 psz_path = NULL;
3030
3031 if( !psz_path || !psz_path[0] )
3032 {
3033 free( psz_path );
3034 *pp_result = NULL;
3035 return;
3036 }
3037
3038 // fprintf( stderr, "path:'%s'\n", psz_path );
3039 psz_dup = psz_path; /* keep this pointer, as it need to be unallocated */
3040 for( ; ; )
3041 {
3042 char *psz_token;
3043 int i_number;
3044
3045 __get_token( &psz_path, &psz_token, &i_number );
3046 // fprintf( stderr, "path:'%s', token:'%s' n:%d\n",
3047 // psz_path,psz_token,i_number );
3048 if( !psz_token )
3049 {
3050 free( psz_dup );
3051 *pp_result = p_box;
3052 return;
3053 }
3054 else
3055 if( !strcmp( psz_token, "/" ) )
3056 {
3057 /* Find root box */
3058 while( p_box && p_box->i_type != VLC_FOURCC( 'r', 'o', 'o', 't' ) )
3059 {
3060 p_box = p_box->p_father;
3061 }
3062 if( !p_box )
3063 {
3064 free( psz_token );
3065 free( psz_dup );
3066 *pp_result = NULL;
3067 return;
3068 }
3069 }
3070 else
3071 if( !strcmp( psz_token, "." ) )
3072 {
3073 /* Do nothing */
3074 }
3075 else
3076 if( !strcmp( psz_token, ".." ) )
3077 {
3078 p_box = p_box->p_father;
3079 if( !p_box )
3080 {
3081 free( psz_token );
3082 free( psz_dup );
3083 *pp_result = NULL;
3084 return;
3085 }
3086 }
3087 else
3088 if( strlen( psz_token ) == 4 )
3089 {
3090 uint32_t i_fourcc;
3091 i_fourcc = VLC_FOURCC( psz_token[0], psz_token[1],
3092 psz_token[2], psz_token[3] );
3093 p_box = p_box->p_first;
3094 for( ; ; )
3095 {
3096 if( !p_box )
3097 {
3098 free( psz_token );
3099 free( psz_dup );
3100 *pp_result = NULL;
3101 return;
3102 }
3103 if( p_box->i_type == i_fourcc )
3104 {
3105 if( !i_number )
3106 {
3107 break;
3108 }
3109 i_number--;
3110 }
3111 p_box = p_box->p_next;
3112 }
3113 }
3114 else
3115 if( strlen( psz_token ) == 0 )
3116 {
3117 p_box = p_box->p_first;
3118 for( ; ; )
3119 {
3120 if( !p_box )
3121 {
3122 free( psz_token );
3123 free( psz_dup );
3124 *pp_result = NULL;
3125 return;
3126 }
3127 if( !i_number )
3128 {
3129 break;
3130 }
3131 i_number--;
3132 p_box = p_box->p_next;
3133 }
3134 }
3135 else
3136 {
3137 // fprintf( stderr, "Argg malformed token \"%s\"",psz_token );
3138 FREENULL( psz_token );
3139 free( psz_dup );
3140 *pp_result = NULL;
3141 return;
3142 }
3143
3144 free( psz_token );
3145 }
3146 }
3147
3148 /*****************************************************************************
3149 * MP4_BoxGet: find a box given a path relative to p_box
3150 *****************************************************************************
3151 * Path Format: . .. / as usual
3152 * [number] to specifie box number ex: trak[12]
3153 *
3154 * ex: /moov/trak[12]
3155 * ../mdia
3156 *****************************************************************************/
3157 MP4_Box_t *MP4_BoxGet( MP4_Box_t *p_box, const char *psz_fmt, ... )
3158 {
3159 va_list args;
3160 MP4_Box_t *p_result;
3161
3162 va_start( args, psz_fmt );
3163 __MP4_BoxGet( &p_result, p_box, psz_fmt, args );
3164 va_end( args );
3165
3166 return( p_result );
3167 }
3168
3169 /*****************************************************************************
3170 * MP4_BoxCount: count box given a path relative to p_box
3171 *****************************************************************************
3172 * Path Format: . .. / as usual
3173 * [number] to specifie box number ex: trak[12]
3174 *
3175 * ex: /moov/trak[12]
3176 * ../mdia
3177 *****************************************************************************/
3178 int MP4_BoxCount( MP4_Box_t *p_box, const char *psz_fmt, ... )
3179 {
3180 va_list args;
3181 int i_count;
3182 MP4_Box_t *p_result, *p_next;
3183
3184 va_start( args, psz_fmt );
3185 __MP4_BoxGet( &p_result, p_box, psz_fmt, args );
3186 va_end( args );
3187 if( !p_result )
3188 {
3189 return( 0 );
3190 }
3191
3192 i_count = 1;
3193 for( p_next = p_result->p_next; p_next != NULL; p_next = p_next->p_next)
3194 {
3195 if( p_next->i_type == p_result->i_type)
3196 {
3197 i_count++;
3198 }
3199 }
3200 return( i_count );
3201 }
VLC Solaris and OpenSolaris fixes