?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
MP4: support for gnre atom
[vlc/solaris.git] / modules / demux / mp4 / mp4.c
blob740736a6adc3f6be448c71d3d2228a297735bb79
1 /*****************************************************************************
2 * mp4.c : MP4 file input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
5 * $Id$
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
22
23 /*****************************************************************************
24 * Preamble
25 *****************************************************************************/
26
27 #ifdef HAVE_CONFIG_H
28 # include "config.h"
29 #endif
30
31 #include <vlc_common.h>
32 #include <vlc_plugin.h>
33
34
35 #include <vlc_demux.h>
36 #include <vlc_md5.h>
37 #include <vlc_charset.h>
38 #include <vlc_iso_lang.h>
39 #include <vlc_meta.h>
40 #include <vlc_input.h>
41
42 #include "libmp4.h"
43 #include "drms.h"
44 #include "../../meta_engine/id3genres.h"
45
46 /*****************************************************************************
47 * Module descriptor
48 *****************************************************************************/
49 static int Open ( vlc_object_t * );
50 static void Close( vlc_object_t * );
51
52 vlc_module_begin ()
53 set_category( CAT_INPUT )
54 set_subcategory( SUBCAT_INPUT_DEMUX )
55 set_description( N_("MP4 stream demuxer") )
56 set_shortname( N_("MP4") )
57 set_capability( "demux", 242 )
58 set_callbacks( Open, Close )
59 vlc_module_end ()
60
61 /*****************************************************************************
62 * Local prototypes
63 *****************************************************************************/
64 static int Demux ( demux_t * );
65 static int DemuxRef( demux_t *p_demux ){ (void)p_demux; return 0;}
66 static int Seek ( demux_t *, mtime_t );
67 static int Control ( demux_t *, int, va_list );
68
69 /* Contain all information about a chunk */
70 typedef struct
71 {
72 uint64_t i_offset; /* absolute position of this chunk in the file */
73 uint32_t i_sample_description_index; /* index for SampleEntry to use */
74 uint32_t i_sample_count; /* how many samples in this chunk */
75 uint32_t i_sample_first; /* index of the first sample in this chunk */
76
77 /* now provide way to calculate pts, dts, and offset without too
78 much memory and with fast access */
79
80 /* with this we can calculate dts/pts without waste memory */
81 uint64_t i_first_dts; /* DTS of the first sample */
82 uint64_t i_last_dts; /* DTS of the last sample */
83 uint32_t *p_sample_count_dts;
84 uint32_t *p_sample_delta_dts; /* dts delta */
85
86 uint32_t *p_sample_count_pts;
87 int32_t *p_sample_offset_pts; /* pts-dts */
88
89 /* TODO if needed add pts
90 but quickly *add* support for edts and seeking */
91
92 } mp4_chunk_t;
93
94 /* Contain all needed information for read all track with vlc */
95 typedef struct
96 {
97 unsigned int i_track_ID;/* this should be unique */
98
99 int b_ok; /* The track is usable */
100 int b_enable; /* is the trak enable by default */
101 bool b_selected; /* is the trak being played */
102 bool b_chapter; /* True when used for chapter only */
103
104 bool b_mac_encoding;
105
106 es_format_t fmt;
107 es_out_id_t *p_es;
108
109 /* display size only ! */
110 int i_width;
111 int i_height;
112
113 /* more internal data */
114 uint64_t i_timescale; /* time scale for this track only */
115
116 /* elst */
117 int i_elst; /* current elst */
118 int64_t i_elst_time; /* current elst start time (in movie time scale)*/
119 MP4_Box_t *p_elst; /* elst (could be NULL) */
120
121 /* give the next sample to read, i_chunk is to find quickly where
122 the sample is located */
123 uint32_t i_sample; /* next sample to read */
124 uint32_t i_chunk; /* chunk where next sample is stored */
125 /* total count of chunk and sample */
126 uint32_t i_chunk_count;
127 uint32_t i_sample_count;
128
129 mp4_chunk_t *chunk; /* always defined for each chunk */
130
131 /* sample size, p_sample_size defined only if i_sample_size == 0
132 else i_sample_size is size for all sample */
133 uint32_t i_sample_size;
134 uint32_t *p_sample_size; /* XXX perhaps add file offset if take
135 too much time to do sumations each time*/
136
137 MP4_Box_t *p_stbl; /* will contain all timing information */
138 MP4_Box_t *p_stsd; /* will contain all data to initialize decoder */
139 MP4_Box_t *p_sample;/* point on actual sdsd */
140
141 bool b_drms;
142 void *p_drms;
143 MP4_Box_t *p_skcr;
144
145 } mp4_track_t;
146
147
148 struct demux_sys_t
149 {
150 MP4_Box_t *p_root; /* container for the whole file */
151
152 mtime_t i_pcr;
153
154 uint64_t i_time; /* time position of the presentation
155 * in movie timescale */
156 uint64_t i_timescale; /* movie time scale */
157 uint64_t i_duration; /* movie duration */
158 unsigned int i_tracks; /* number of tracks */
159 mp4_track_t *track; /* array of track */
160 float f_fps; /* number of frame per seconds */
161
162 /* */
163 MP4_Box_t *p_tref_chap;
164
165 /* */
166 input_title_t *p_title;
167 };
168
169 /*****************************************************************************
170 * Declaration of local function
171 *****************************************************************************/
172 static void MP4_TrackCreate ( demux_t *, mp4_track_t *, MP4_Box_t *, bool b_force_enable );
173 static void MP4_TrackDestroy( mp4_track_t * );
174
175 static int MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
176 static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
177
178 static int MP4_TrackSeek ( demux_t *, mp4_track_t *, mtime_t );
179
180 static uint64_t MP4_TrackGetPos ( mp4_track_t * );
181 static int MP4_TrackSampleSize( mp4_track_t * );
182 static int MP4_TrackNextSample( demux_t *, mp4_track_t * );
183 static void MP4_TrackSetELST( demux_t *, mp4_track_t *, int64_t );
184
185 static void MP4_UpdateSeekpoint( demux_t * );
186 static const char *MP4_ConvertMacCode( uint16_t );
187
188 /* Return time in s of a track */
189 static inline int64_t MP4_TrackGetDTS( demux_t *p_demux, mp4_track_t *p_track )
190 {
191 #define chunk p_track->chunk[p_track->i_chunk]
192
193 unsigned int i_index = 0;
194 unsigned int i_sample = p_track->i_sample - chunk.i_sample_first;
195 int64_t i_dts = chunk.i_first_dts;
196
197 while( i_sample > 0 )
198 {
199 if( i_sample > chunk.p_sample_count_dts[i_index] )
200 {
201 i_dts += chunk.p_sample_count_dts[i_index] *
202 chunk.p_sample_delta_dts[i_index];
203 i_sample -= chunk.p_sample_count_dts[i_index];
204 i_index++;
205 }
206 else
207 {
208 i_dts += i_sample * chunk.p_sample_delta_dts[i_index];
209 break;
210 }
211 }
212
213 #undef chunk
214
215 /* now handle elst */
216 if( p_track->p_elst )
217 {
218 demux_sys_t *p_sys = p_demux->p_sys;
219 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
220
221 /* convert to offset */
222 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
223 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
224 elst->i_media_time[p_track->i_elst] > 0 )
225 {
226 i_dts -= elst->i_media_time[p_track->i_elst];
227 }
228
229 /* add i_elst_time */
230 i_dts += p_track->i_elst_time * p_track->i_timescale /
231 p_sys->i_timescale;
232
233 if( i_dts < 0 ) i_dts = 0;
234 }
235
236 return INT64_C(1000000) * i_dts / p_track->i_timescale;
237 }
238
239 static inline int64_t MP4_TrackGetPTSDelta( mp4_track_t *p_track )
240 {
241 mp4_chunk_t *ck = &p_track->chunk[p_track->i_chunk];
242 unsigned int i_index = 0;
243 unsigned int i_sample = p_track->i_sample - ck->i_sample_first;
244
245 if( ck->p_sample_count_pts == NULL || ck->p_sample_offset_pts == NULL )
246 return -1;
247
248 for( i_index = 0;; i_index++ )
249 {
250 if( i_sample < ck->p_sample_count_pts[i_index] )
251 return ck->p_sample_offset_pts[i_index] * INT64_C(1000000) /
252 (int64_t)p_track->i_timescale;
253
254 i_sample -= ck->p_sample_count_pts[i_index];
255 }
256 }
257
258 static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
259 {
260 return INT64_C(1000000) * p_sys->i_time / p_sys->i_timescale;
261 }
262
263 static void LoadChapter( demux_t *p_demux );
264
265 /*****************************************************************************
266 * Open: check file and initializes MP4 structures
267 *****************************************************************************/
268 static int Open( vlc_object_t * p_this )
269 {
270 demux_t *p_demux = (demux_t *)p_this;
271 demux_sys_t *p_sys;
272
273 const uint8_t *p_peek;
274
275 MP4_Box_t *p_ftyp;
276 MP4_Box_t *p_rmra;
277 MP4_Box_t *p_mvhd;
278 MP4_Box_t *p_trak;
279
280 unsigned int i;
281 bool b_seekable;
282 bool b_enabled_es;
283
284 /* A little test to see if it could be a mp4 */
285 if( stream_Peek( p_demux->s, &p_peek, 8 ) < 8 ) return VLC_EGENERIC;
286
287 switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
288 {
289 case FOURCC_ftyp:
290 case FOURCC_moov:
291 case FOURCC_foov:
292 case FOURCC_moof:
293 case FOURCC_mdat:
294 case FOURCC_udta:
295 case FOURCC_free:
296 case FOURCC_skip:
297 case FOURCC_wide:
298 case VLC_FOURCC( 'p', 'n', 'o', 't' ):
299 break;
300 default:
301 return VLC_EGENERIC;
302 }
303
304 /* I need to seek */
305 stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_seekable );
306 if( !b_seekable )
307 {
308 msg_Warn( p_demux, "MP4 plugin discarded (unseekable)" );
309 return VLC_EGENERIC;
310 }
311
312 /*Set exported functions */
313 p_demux->pf_demux = Demux;
314 p_demux->pf_control = Control;
315
316 /* create our structure that will contains all data */
317 p_demux->p_sys = p_sys = calloc( 1, sizeof( demux_sys_t ) );
318
319 /* Now load all boxes ( except raw data ) */
320 if( ( p_sys->p_root = MP4_BoxGetRoot( p_demux->s ) ) == NULL )
321 {
322 msg_Warn( p_demux, "MP4 plugin discarded (not a valid file)" );
323 goto error;
324 }
325
326 MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
327
328 if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
329 {
330 switch( p_ftyp->data.p_ftyp->i_major_brand )
331 {
332 case( FOURCC_isom ):
333 msg_Dbg( p_demux,
334 "ISO Media file (isom) version %d.",
335 p_ftyp->data.p_ftyp->i_minor_version );
336 break;
337 default:
338 msg_Dbg( p_demux,
339 "unrecognized major file specification (%4.4s).",
340 (char*)&p_ftyp->data.p_ftyp->i_major_brand );
341 break;
342 }
343 }
344 else
345 {
346 msg_Dbg( p_demux, "file type box missing (assuming ISO Media file)" );
347 }
348
349 /* the file need to have one moov box */
350 if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
351 {
352 MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
353
354 if( !p_foov )
355 {
356 msg_Err( p_demux, "MP4 plugin discarded (no moov box)" );
357 goto error;
358 }
359 /* we have a free box as a moov, rename it */
360 p_foov->i_type = FOURCC_moov;
361 }
362
363 if( ( p_rmra = MP4_BoxGet( p_sys->p_root, "/moov/rmra" ) ) )
364 {
365 int i_count = MP4_BoxCount( p_rmra, "rmda" );
366 int i;
367
368 msg_Dbg( p_demux, "detected playlist mov file (%d ref)", i_count );
369
370 input_thread_t *p_input = demux_GetParentInput( p_demux );
371 input_item_t *p_current = input_GetItem( p_input );
372
373 input_item_node_t *p_subitems = input_item_node_Create( p_current );
374
375 for( i = 0; i < i_count; i++ )
376 {
377 MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
378 char *psz_ref;
379 uint32_t i_ref_type;
380
381 if( !p_rdrf || !( psz_ref = strdup( p_rdrf->data.p_rdrf->psz_ref ) ) )
382 {
383 continue;
384 }
385 i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
386
387 msg_Dbg( p_demux, "new ref=`%s' type=%4.4s",
388 psz_ref, (char*)&i_ref_type );
389
390 if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
391 {
392 if( strstr( psz_ref, "qt5gateQT" ) )
393 {
394 msg_Dbg( p_demux, "ignoring pseudo ref =`%s'", psz_ref );
395 continue;
396 }
397 if( !strncmp( psz_ref, "http://", 7 ) ||
398 !strncmp( psz_ref, "rtsp://", 7 ) )
399 {
400 ;
401 }
402 else
403 {
404 char *psz_absolute;
405 char *psz_path = strdup( p_demux->psz_path );
406 char *end = strrchr( psz_path, '/' );
407 if( end ) end[1] = '\0';
408 else *psz_path = '\0';
409
410 if( asprintf( &psz_absolute, "%s://%s%s",
411 p_demux->psz_access, psz_path, psz_ref ) < 0 )
412 {
413 free( psz_ref );
414 free( psz_path );
415 vlc_object_release( p_input) ;
416 return VLC_ENOMEM;
417 }
418
419 free( psz_ref );
420 psz_ref = psz_absolute;
421 free( psz_path );
422 }
423 msg_Dbg( p_demux, "adding ref = `%s'", psz_ref );
424 input_item_t *p_input = input_item_New( p_demux, psz_ref, NULL );
425 input_item_CopyOptions( p_current, p_input );
426 input_item_node_AppendItem( p_subitems, p_input );
427 vlc_gc_decref( p_input );
428 }
429 else
430 {
431 msg_Err( p_demux, "unknown ref type=%4.4s FIXME (send a bug report)",
432 (char*)&p_rdrf->data.p_rdrf->i_ref_type );
433 }
434 free( psz_ref );
435 }
436 input_item_node_PostAndDelete( p_subitems );
437 vlc_object_release( p_input );
438 }
439
440 if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
441 {
442 if( !p_rmra )
443 {
444 msg_Err( p_demux, "cannot find /moov/mvhd" );
445 goto error;
446 }
447 else
448 {
449 msg_Warn( p_demux, "cannot find /moov/mvhd (pure ref file)" );
450 p_demux->pf_demux = DemuxRef;
451 return VLC_SUCCESS;
452 }
453 }
454 else
455 {
456 p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
457 if( p_sys->i_timescale == 0 )
458 {
459 msg_Err( p_this, "bad timescale" );
460 goto error;
461 }
462 p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
463 }
464
465 if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
466 {
467 msg_Err( p_demux, "cannot find any /moov/trak" );
468 goto error;
469 }
470 msg_Dbg( p_demux, "found %d track%c",
471 p_sys->i_tracks,
472 p_sys->i_tracks ? 's':' ' );
473
474 /* allocate memory */
475 p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
476 if( p_sys->track == NULL )
477 goto error;
478 memset( p_sys->track, 0, p_sys->i_tracks * sizeof( mp4_track_t ) );
479
480 /* Search the first chap reference (like quicktime) and
481 * check that at least 1 stream is enabled */
482 p_sys->p_tref_chap = NULL;
483 b_enabled_es = false;
484 for( i = 0; i < p_sys->i_tracks; i++ )
485 {
486 MP4_Box_t *p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
487
488
489 MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
490 if( p_tkhd && (p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED) )
491 b_enabled_es = true;
492
493 MP4_Box_t *p_chap = MP4_BoxGet( p_trak, "tref/chap", i );
494 if( p_chap && p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
495 p_sys->p_tref_chap = p_chap;
496 }
497
498 /* now process each track and extract all usefull information */
499 for( i = 0; i < p_sys->i_tracks; i++ )
500 {
501 p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
502 MP4_TrackCreate( p_demux, &p_sys->track[i], p_trak, !b_enabled_es );
503
504 if( p_sys->track[i].b_ok && !p_sys->track[i].b_chapter )
505 {
506 const char *psz_cat;
507 switch( p_sys->track[i].fmt.i_cat )
508 {
509 case( VIDEO_ES ):
510 psz_cat = "video";
511 break;
512 case( AUDIO_ES ):
513 psz_cat = "audio";
514 break;
515 case( SPU_ES ):
516 psz_cat = "subtitle";
517 break;
518
519 default:
520 psz_cat = "unknown";
521 break;
522 }
523
524 msg_Dbg( p_demux, "adding track[Id 0x%x] %s (%s) language %s",
525 p_sys->track[i].i_track_ID, psz_cat,
526 p_sys->track[i].b_enable ? "enable":"disable",
527 p_sys->track[i].fmt.psz_language ?
528 p_sys->track[i].fmt.psz_language : "undef" );
529 }
530 else if( p_sys->track[i].b_ok && p_sys->track[i].b_chapter )
531 {
532 msg_Dbg( p_demux, "using track[Id 0x%x] for chapter language %s",
533 p_sys->track[i].i_track_ID,
534 p_sys->track[i].fmt.psz_language ?
535 p_sys->track[i].fmt.psz_language : "undef" );
536 }
537 else
538 {
539 msg_Dbg( p_demux, "ignoring track[Id 0x%x]",
540 p_sys->track[i].i_track_ID );
541 }
542 }
543
544 /* */
545 LoadChapter( p_demux );
546
547 return VLC_SUCCESS;
548
549 error:
550 if( p_sys->p_root )
551 {
552 MP4_BoxFree( p_demux->s, p_sys->p_root );
553 }
554 free( p_sys );
555 return VLC_EGENERIC;
556 }
557
558 /*****************************************************************************
559 * Demux: read packet and send them to decoders
560 *****************************************************************************
561 * TODO check for newly selected track (ie audio upt to now )
562 *****************************************************************************/
563 static int Demux( demux_t *p_demux )
564 {
565 demux_sys_t *p_sys = p_demux->p_sys;
566 unsigned int i_track;
567
568
569 unsigned int i_track_selected;
570
571 /* check for newly selected/unselected track */
572 for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks;
573 i_track++ )
574 {
575 mp4_track_t *tk = &p_sys->track[i_track];
576 bool b;
577
578 if( !tk->b_ok || tk->b_chapter ||
579 ( tk->b_selected && tk->i_sample >= tk->i_sample_count ) )
580 {
581 continue;
582 }
583
584 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
585
586 if( tk->b_selected && !b )
587 {
588 MP4_TrackUnselect( p_demux, tk );
589 }
590 else if( !tk->b_selected && b)
591 {
592 MP4_TrackSelect( p_demux, tk, MP4_GetMoviePTS( p_sys ) );
593 }
594
595 if( tk->b_selected )
596 {
597 i_track_selected++;
598 }
599 }
600
601 if( i_track_selected <= 0 )
602 {
603 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
604 if( p_sys->i_timescale > 0 )
605 {
606 int64_t i_length = (mtime_t)1000000 *
607 (mtime_t)p_sys->i_duration /
608 (mtime_t)p_sys->i_timescale;
609 if( MP4_GetMoviePTS( p_sys ) >= i_length )
610 return 0;
611 return 1;
612 }
613
614 msg_Warn( p_demux, "no track selected, exiting..." );
615 return 0;
616 }
617
618 /* */
619 MP4_UpdateSeekpoint( p_demux );
620
621 /* first wait for the good time to read a packet */
622 es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
623
624 p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
625
626 /* we will read 100ms for each stream so ...*/
627 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
628
629 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
630 {
631 mp4_track_t *tk = &p_sys->track[i_track];
632
633 if( !tk->b_ok || tk->b_chapter || !tk->b_selected || tk->i_sample >= tk->i_sample_count )
634 continue;
635
636 while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
637 {
638 #if 0
639 msg_Dbg( p_demux, "tk(%i)=%lld mv=%lld", i_track,
640 MP4_TrackGetDTS( p_demux, tk ),
641 MP4_GetMoviePTS( p_sys ) );
642 #endif
643
644 if( MP4_TrackSampleSize( tk ) > 0 )
645 {
646 block_t *p_block;
647 int64_t i_delta;
648
649 /* go,go go ! */
650 if( stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
651 {
652 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
653 tk->i_track_ID );
654 MP4_TrackUnselect( p_demux, tk );
655 break;
656 }
657
658 /* now read pes */
659 if( !(p_block =
660 stream_Block( p_demux->s, MP4_TrackSampleSize(tk) )) )
661 {
662 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
663 tk->i_track_ID );
664 MP4_TrackUnselect( p_demux, tk );
665 break;
666 }
667
668 if( tk->b_drms && tk->p_drms )
669 {
670 if( tk->p_skcr )
671 {
672 uint32_t p_key[4];
673 drms_get_p_key( tk->p_drms, p_key );
674
675 for( size_t i_pos = tk->p_skcr->data.p_skcr->i_init; i_pos < p_block->i_buffer; )
676 {
677 int n = __MIN( tk->p_skcr->data.p_skcr->i_encr, p_block->i_buffer - i_pos );
678 drms_decrypt( tk->p_drms, (uint32_t*)&p_block->p_buffer[i_pos], n, p_key );
679 i_pos += n;
680 i_pos += __MIN( tk->p_skcr->data.p_skcr->i_decr, p_block->i_buffer - i_pos );
681 }
682 }
683 else
684 {
685 drms_decrypt( tk->p_drms, (uint32_t*)p_block->p_buffer,
686 p_block->i_buffer, NULL );
687 }
688 }
689 else if( tk->fmt.i_cat == SPU_ES )
690 {
691 if( tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) &&
692 p_block->i_buffer >= 2 )
693 {
694 uint16_t i_size = GetWBE( p_block->p_buffer );
695
696 if( i_size + 2 <= p_block->i_buffer )
697 {
698 char *p;
699 /* remove the length field, and append a '\0' */
700 memmove( &p_block->p_buffer[0],
701 &p_block->p_buffer[2], i_size );
702 p_block->p_buffer[i_size] = '\0';
703 p_block->i_buffer = i_size + 1;
704
705 /* convert \r -> \n */
706 while( ( p = strchr((char *) p_block->p_buffer, '\r' ) ) )
707 {
708 *p = '\n';
709 }
710 }
711 else
712 {
713 /* Invalid */
714 p_block->i_buffer = 0;
715 }
716 }
717 }
718 /* dts */
719 p_block->i_dts = VLC_TS_0 + MP4_TrackGetDTS( p_demux, tk );
720 /* pts */
721 i_delta = MP4_TrackGetPTSDelta( tk );
722 if( i_delta != -1 )
723 p_block->i_pts = p_block->i_dts + i_delta;
724 else if( tk->fmt.i_cat != VIDEO_ES )
725 p_block->i_pts = p_block->i_dts;
726 else
727 p_block->i_pts = VLC_TS_INVALID;
728
729 if( !tk->b_drms || ( tk->b_drms && tk->p_drms ) )
730 es_out_Send( p_demux->out, tk->p_es, p_block );
731 }
732
733 /* Next sample */
734 if( MP4_TrackNextSample( p_demux, tk ) )
735 break;
736 }
737 }
738
739 return 1;
740 }
741
742 static void MP4_UpdateSeekpoint( demux_t *p_demux )
743 {
744 demux_sys_t *p_sys = p_demux->p_sys;
745 int64_t i_time;
746 int i;
747 if( !p_sys->p_title )
748 return;
749 i_time = MP4_GetMoviePTS( p_sys );
750 for( i = 0; i < p_sys->p_title->i_seekpoint; i++ )
751 {
752 if( i_time < p_sys->p_title->seekpoint[i]->i_time_offset )
753 break;
754 }
755 i--;
756
757 if( i != p_demux->info.i_seekpoint && i >= 0 )
758 {
759 p_demux->info.i_seekpoint = i;
760 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
761 }
762 }
763 /*****************************************************************************
764 * Seek: Go to i_date
765 ******************************************************************************/
766 static int Seek( demux_t *p_demux, mtime_t i_date )
767 {
768 demux_sys_t *p_sys = p_demux->p_sys;
769 unsigned int i_track;
770
771 /* First update update global time */
772 p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
773 p_sys->i_pcr = i_date;
774
775 /* Now for each stream try to go to this time */
776 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
777 {
778 mp4_track_t *tk = &p_sys->track[i_track];
779 MP4_TrackSeek( p_demux, tk, i_date );
780 }
781 MP4_UpdateSeekpoint( p_demux );
782
783 es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_date );
784
785 return VLC_SUCCESS;
786 }
787
788 /*****************************************************************************
789 * Control:
790 *****************************************************************************/
791 static int Control( demux_t *p_demux, int i_query, va_list args )
792 {
793 demux_sys_t *p_sys = p_demux->p_sys;
794
795 double f, *pf;
796 int64_t i64, *pi64;
797
798 switch( i_query )
799 {
800 case DEMUX_GET_POSITION:
801 pf = (double*)va_arg( args, double * );
802 if( p_sys->i_duration > 0 )
803 {
804 *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
805 }
806 else
807 {
808 *pf = 0.0;
809 }
810 return VLC_SUCCESS;
811
812 case DEMUX_SET_POSITION:
813 f = (double)va_arg( args, double );
814 if( p_sys->i_timescale > 0 )
815 {
816 i64 = (int64_t)( f * (double)1000000 *
817 (double)p_sys->i_duration /
818 (double)p_sys->i_timescale );
819 return Seek( p_demux, i64 );
820 }
821 else return VLC_SUCCESS;
822
823 case DEMUX_GET_TIME:
824 pi64 = (int64_t*)va_arg( args, int64_t * );
825 if( p_sys->i_timescale > 0 )
826 {
827 *pi64 = (mtime_t)1000000 *
828 (mtime_t)p_sys->i_time /
829 (mtime_t)p_sys->i_timescale;
830 }
831 else *pi64 = 0;
832 return VLC_SUCCESS;
833
834 case DEMUX_SET_TIME:
835 i64 = (int64_t)va_arg( args, int64_t );
836 return Seek( p_demux, i64 );
837
838 case DEMUX_GET_LENGTH:
839 pi64 = (int64_t*)va_arg( args, int64_t * );
840 if( p_sys->i_timescale > 0 )
841 {
842 *pi64 = (mtime_t)1000000 *
843 (mtime_t)p_sys->i_duration /
844 (mtime_t)p_sys->i_timescale;
845 }
846 else *pi64 = 0;
847 return VLC_SUCCESS;
848
849 case DEMUX_GET_FPS:
850 pf = (double*)va_arg( args, double* );
851 *pf = p_sys->f_fps;
852 return VLC_SUCCESS;
853
854 case DEMUX_GET_META:
855 {
856 vlc_meta_t *p_meta = (vlc_meta_t *)va_arg( args, vlc_meta_t*);
857 MP4_Box_t *p_0xa9xxx;
858
859 MP4_Box_t *p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta/meta/ilst" );
860 if( p_udta == NULL )
861 {
862 p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta" );
863 if( p_udta == NULL )
864 {
865 return VLC_EGENERIC;
866 }
867 }
868
869 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
870 p_0xa9xxx = p_0xa9xxx->p_next )
871 {
872
873 if( !p_0xa9xxx || !p_0xa9xxx->data.p_0xa9xxx )
874 continue;
875
876 /* FIXME FIXME: should convert from whatever the character
877 * encoding of MP4 meta data is to UTF-8. */
878 #define SET(fct) do { char *psz_utf = strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text ? p_0xa9xxx->data.p_0xa9xxx->psz_text : "" ); \
879 if( psz_utf ) { EnsureUTF8( psz_utf ); \
880 fct( p_meta, psz_utf ); free( psz_utf ); } } while(0)
881
882 /* XXX Becarefull p_udta can have box that are not 0xa9xx */
883 switch( p_0xa9xxx->i_type )
884 {
885 case FOURCC_0xa9nam: /* Full name */
886 SET( vlc_meta_SetTitle );
887 break;
888 case FOURCC_0xa9aut:
889 SET( vlc_meta_SetArtist );
890 break;
891 case FOURCC_0xa9ART:
892 SET( vlc_meta_SetArtist );
893 break;
894 case FOURCC_0xa9cpy:
895 SET( vlc_meta_SetCopyright );
896 break;
897 case FOURCC_0xa9day: /* Creation Date */
898 SET( vlc_meta_SetDate );
899 break;
900 case FOURCC_0xa9des: /* Description */
901 SET( vlc_meta_SetDescription );
902 break;
903 case FOURCC_0xa9gen: /* Genre */
904 SET( vlc_meta_SetGenre );
905 break;
906
907 case FOURCC_gnre:
908 if( p_0xa9xxx->data.p_gnre->i_genre < NUM_GENRES )
909 vlc_meta_SetGenre( p_meta, ppsz_genres[p_0xa9xxx->data.p_gnre->i_genre] );
910 break;
911
912 case FOURCC_0xa9alb: /* Album */
913 SET( vlc_meta_SetAlbum );
914 break;
915
916 case FOURCC_0xa9trk: /* Track */
917 SET( vlc_meta_SetTrackNum );
918 break;
919
920 case FOURCC_0xa9cmt: /* Commment */
921 SET( vlc_meta_SetDescription );
922 break;
923
924 case FOURCC_0xa9url: /* URL */
925 SET( vlc_meta_SetURL );
926 break;
927
928 case FOURCC_0xa9enc: /* Encoded By */
929 SET( vlc_meta_SetEncodedBy );
930 break;
931
932 case FOURCC_0xa9swr:
933 case FOURCC_0xa9inf: /* Information */
934 case FOURCC_0xa9dir: /* Director */
935 case FOURCC_0xa9dis: /* Disclaimer */
936 case FOURCC_0xa9req: /* Requirements */
937 case FOURCC_0xa9fmt: /* Original Format */
938 case FOURCC_0xa9dsa: /* Display Source As */
939 case FOURCC_0xa9hst: /* Host Computer */
940 case FOURCC_0xa9prd: /* Producer */
941 case FOURCC_0xa9prf: /* Performers */
942 case FOURCC_0xa9ope: /* Original Performer */
943 case FOURCC_0xa9src: /* Providers Source Content */
944 case FOURCC_0xa9wrt: /* Writer */
945 case FOURCC_0xa9com: /* Composer */
946 case FOURCC_WLOC: /* Window Location */
947 /* TODO one day, but they aren't really meaningfull */
948 break;
949 #undef SET
950
951 default:
952 break;
953 }
954 }
955 return VLC_SUCCESS;
956 }
957
958 case DEMUX_GET_TITLE_INFO:
959 {
960 input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
961 int *pi_int = (int*)va_arg( args, int* );
962 int *pi_title_offset = (int*)va_arg( args, int* );
963 int *pi_seekpoint_offset = (int*)va_arg( args, int* );
964
965 if( !p_sys->p_title )
966 return VLC_EGENERIC;
967
968 *pi_int = 1;
969 *ppp_title = malloc( sizeof( input_title_t**) );
970 (*ppp_title)[0] = vlc_input_title_Duplicate( p_sys->p_title );
971 *pi_title_offset = 0;
972 *pi_seekpoint_offset = 0;
973 return VLC_SUCCESS;
974 }
975 case DEMUX_SET_TITLE:
976 {
977 const int i_title = (int)va_arg( args, int );
978 if( !p_sys->p_title || i_title != 0 )
979 return VLC_EGENERIC;
980 return VLC_SUCCESS;
981 }
982 case DEMUX_SET_SEEKPOINT:
983 {
984 const int i_seekpoint = (int)va_arg( args, int );
985 if( !p_sys->p_title )
986 return VLC_EGENERIC;
987 return Seek( p_demux, p_sys->p_title->seekpoint[i_seekpoint]->i_time_offset );
988 }
989
990 case DEMUX_SET_NEXT_DEMUX_TIME:
991 case DEMUX_SET_GROUP:
992 case DEMUX_HAS_UNSUPPORTED_META:
993 case DEMUX_GET_ATTACHMENTS:
994 return VLC_EGENERIC;
995
996 default:
997 msg_Warn( p_demux, "control query %u unimplemented", i_query );
998 return VLC_EGENERIC;
999 }
1000 }
1001
1002 /*****************************************************************************
1003 * Close: frees unused data
1004 *****************************************************************************/
1005 static void Close ( vlc_object_t * p_this )
1006 {
1007 demux_t * p_demux = (demux_t *)p_this;
1008 demux_sys_t *p_sys = p_demux->p_sys;
1009 unsigned int i_track;
1010
1011 msg_Dbg( p_demux, "freeing all memory" );
1012
1013 MP4_BoxFree( p_demux->s, p_sys->p_root );
1014 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
1015 {
1016 MP4_TrackDestroy( &p_sys->track[i_track] );
1017 }
1018 FREENULL( p_sys->track );
1019
1020 if( p_sys->p_title )
1021 vlc_input_title_Delete( p_sys->p_title );
1022
1023 free( p_sys );
1024 }
1025
1026
1027
1028 /****************************************************************************
1029 * Local functions, specific to vlc
1030 ****************************************************************************/
1031 /* Chapters */
1032 static void LoadChapterGpac( demux_t *p_demux, MP4_Box_t *p_chpl )
1033 {
1034 demux_sys_t *p_sys = p_demux->p_sys;
1035 int i;
1036
1037 p_sys->p_title = vlc_input_title_New();
1038 for( i = 0; i < p_chpl->data.p_chpl->i_chapter; i++ )
1039 {
1040 seekpoint_t *s = vlc_seekpoint_New();
1041
1042 s->psz_name = strdup( p_chpl->data.p_chpl->chapter[i].psz_name );
1043 EnsureUTF8( s->psz_name );
1044 s->i_time_offset = p_chpl->data.p_chpl->chapter[i].i_start / 10;
1045 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1046 }
1047 }
1048 static void LoadChapterApple( demux_t *p_demux, mp4_track_t *tk )
1049 {
1050 demux_sys_t *p_sys = p_demux->p_sys;
1051
1052 for( tk->i_sample = 0; tk->i_sample < tk->i_sample_count; tk->i_sample++ )
1053 {
1054 const int64_t i_dts = MP4_TrackGetDTS( p_demux, tk );
1055 const int64_t i_pts_delta = MP4_TrackGetPTSDelta( tk );
1056 const unsigned int i_size = MP4_TrackSampleSize( tk );
1057
1058 if( i_size > 0 && !stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
1059 {
1060 char p_buffer[256];
1061 const int i_read = stream_Read( p_demux->s, p_buffer, __MIN( sizeof(p_buffer), i_size ) );
1062 const int i_len = __MIN( GetWBE(p_buffer), i_read-2 );
1063
1064 if( i_len > 0 )
1065 {
1066 seekpoint_t *s = vlc_seekpoint_New();
1067
1068 s->psz_name = strndup( &p_buffer[2], i_len );
1069 EnsureUTF8( s->psz_name );
1070
1071 s->i_time_offset = i_dts + __MAX( i_pts_delta, 0 );
1072
1073 if( !p_sys->p_title )
1074 p_sys->p_title = vlc_input_title_New();
1075 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1076 }
1077 }
1078 if( tk->i_sample+1 >= tk->chunk[tk->i_chunk].i_sample_first +
1079 tk->chunk[tk->i_chunk].i_sample_count )
1080 tk->i_chunk++;
1081 }
1082 }
1083 static void LoadChapter( demux_t *p_demux )
1084 {
1085 demux_sys_t *p_sys = p_demux->p_sys;
1086 MP4_Box_t *p_chpl;
1087
1088 if( ( p_chpl = MP4_BoxGet( p_sys->p_root, "/moov/udta/chpl" ) ) && p_chpl->data.p_chpl->i_chapter > 0 )
1089 {
1090 LoadChapterGpac( p_demux, p_chpl );
1091 }
1092 else if( p_sys->p_tref_chap )
1093 {
1094 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
1095 unsigned int i, j;
1096
1097 /* Load the first subtitle track like quicktime */
1098 for( i = 0; i < p_chap->i_entry_count; i++ )
1099 {
1100 for( j = 0; j < p_sys->i_tracks; j++ )
1101 {
1102 mp4_track_t *tk = &p_sys->track[j];
1103 if( tk->b_ok && tk->i_track_ID == p_chap->i_track_ID[i] &&
1104 tk->fmt.i_cat == SPU_ES && tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) )
1105 break;
1106 }
1107 if( j < p_sys->i_tracks )
1108 {
1109 LoadChapterApple( p_demux, &p_sys->track[j] );
1110 break;
1111 }
1112 }
1113 }
1114 }
1115
1116 /* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
1117 static int TrackCreateChunksIndex( demux_t *p_demux,
1118 mp4_track_t *p_demux_track )
1119 {
1120 MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
1121 MP4_Box_t *p_stsc;
1122
1123 unsigned int i_chunk;
1124 unsigned int i_index, i_last;
1125
1126 if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
1127 !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
1128 ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
1129 {
1130 return( VLC_EGENERIC );
1131 }
1132
1133 p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
1134 if( !p_demux_track->i_chunk_count )
1135 {
1136 msg_Warn( p_demux, "no chunk defined" );
1137 return( VLC_EGENERIC );
1138 }
1139 p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
1140 sizeof( mp4_chunk_t ) );
1141 if( p_demux_track->chunk == NULL )
1142 {
1143 return VLC_ENOMEM;
1144 }
1145
1146 /* first we read chunk offset */
1147 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1148 {
1149 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1150
1151 ck->i_offset = p_co64->data.p_co64->i_chunk_offset[i_chunk];
1152
1153 ck->i_first_dts = 0;
1154 ck->p_sample_count_dts = NULL;
1155 ck->p_sample_delta_dts = NULL;
1156 ck->p_sample_count_pts = NULL;
1157 ck->p_sample_offset_pts = NULL;
1158 }
1159
1160 /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
1161 to be used for the sample XXX begin to 1
1162 We construct it begining at the end */
1163 i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
1164 i_index = p_stsc->data.p_stsc->i_entry_count;
1165 if( !i_index )
1166 {
1167 msg_Warn( p_demux, "cannot read chunk table or table empty" );
1168 return( VLC_EGENERIC );
1169 }
1170
1171 while( i_index-- )
1172 {
1173 for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1174 i_chunk < i_last; i_chunk++ )
1175 {
1176 if( i_chunk >= p_demux_track->i_chunk_count )
1177 {
1178 msg_Warn( p_demux, "corrupted chunk table" );
1179 return VLC_EGENERIC;
1180 }
1181
1182 p_demux_track->chunk[i_chunk].i_sample_description_index =
1183 p_stsc->data.p_stsc->i_sample_description_index[i_index];
1184 p_demux_track->chunk[i_chunk].i_sample_count =
1185 p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
1186 }
1187 i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1188 }
1189
1190 p_demux_track->chunk[0].i_sample_first = 0;
1191 for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1192 {
1193 p_demux_track->chunk[i_chunk].i_sample_first =
1194 p_demux_track->chunk[i_chunk-1].i_sample_first +
1195 p_demux_track->chunk[i_chunk-1].i_sample_count;
1196 }
1197
1198 msg_Dbg( p_demux, "track[Id 0x%x] read %d chunk",
1199 p_demux_track->i_track_ID, p_demux_track->i_chunk_count );
1200
1201 return VLC_SUCCESS;
1202 }
1203
1204 static int TrackCreateSamplesIndex( demux_t *p_demux,
1205 mp4_track_t *p_demux_track )
1206 {
1207 MP4_Box_t *p_box;
1208 MP4_Box_data_stsz_t *stsz;
1209 MP4_Box_data_stts_t *stts;
1210 /* TODO use also stss and stsh table for seeking */
1211 /* FIXME use edit table */
1212 int64_t i_sample;
1213 int64_t i_chunk;
1214
1215 int64_t i_index;
1216 int64_t i_index_sample_used;
1217
1218 int64_t i_next_dts;
1219
1220 /* Find stsz
1221 * Gives the sample size for each samples. There is also a stz2 table
1222 * (compressed form) that we need to implement TODO */
1223 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stsz" );
1224 if( !p_box )
1225 {
1226 /* FIXME and stz2 */
1227 msg_Warn( p_demux, "cannot find STSZ box" );
1228 return VLC_EGENERIC;
1229 }
1230 stsz = p_box->data.p_stsz;
1231
1232 /* Find stts
1233 * Gives mapping between sample and decoding time
1234 */
1235 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
1236 if( !p_box )
1237 {
1238 msg_Warn( p_demux, "cannot find STTS box" );
1239 return VLC_EGENERIC;
1240 }
1241 stts = p_box->data.p_stts;
1242
1243 /* Use stsz table to create a sample number -> sample size table */
1244 p_demux_track->i_sample_count = stsz->i_sample_count;
1245 if( stsz->i_sample_size )
1246 {
1247 /* 1: all sample have the same size, so no need to construct a table */
1248 p_demux_track->i_sample_size = stsz->i_sample_size;
1249 p_demux_track->p_sample_size = NULL;
1250 }
1251 else
1252 {
1253 /* 2: each sample can have a different size */
1254 p_demux_track->i_sample_size = 0;
1255 p_demux_track->p_sample_size =
1256 calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
1257 if( p_demux_track->p_sample_size == NULL )
1258 return VLC_ENOMEM;
1259
1260 for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
1261 {
1262 p_demux_track->p_sample_size[i_sample] =
1263 stsz->i_entry_size[i_sample];
1264 }
1265 }
1266
1267 /* Use stts table to create a sample number -> dts table.
1268 * XXX: if we don't want to waste too much memory, we can't expand
1269 * the box! so each chunk will contain an "extract" of this table
1270 * for fast research (problem with raw stream where a sample is sometime
1271 * just channels*bits_per_sample/8 */
1272
1273 i_next_dts = 0;
1274 i_index = 0; i_index_sample_used = 0;
1275 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1276 {
1277 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1278 int64_t i_entry, i_sample_count, i;
1279
1280 /* save first dts */
1281 ck->i_first_dts = i_next_dts;
1282 ck->i_last_dts = i_next_dts;
1283
1284 /* count how many entries are needed for this chunk
1285 * for p_sample_delta_dts and p_sample_count_dts */
1286 i_sample_count = ck->i_sample_count;
1287
1288 i_entry = 0;
1289 while( i_sample_count > 0 )
1290 {
1291 i_sample_count -= stts->i_sample_count[i_index+i_entry];
1292 /* don't count already used sample in this entry */
1293 if( i_entry == 0 )
1294 i_sample_count += i_index_sample_used;
1295
1296 i_entry++;
1297 }
1298
1299 /* allocate them */
1300 ck->p_sample_count_dts = calloc( i_entry, sizeof( uint32_t ) );
1301 ck->p_sample_delta_dts = calloc( i_entry, sizeof( uint32_t ) );
1302
1303 if( !ck->p_sample_count_dts || !ck->p_sample_delta_dts )
1304 return VLC_ENOMEM;
1305
1306 /* now copy */
1307 i_sample_count = ck->i_sample_count;
1308 for( i = 0; i < i_entry; i++ )
1309 {
1310 int64_t i_used;
1311 int64_t i_rest;
1312
1313 i_rest = stts->i_sample_count[i_index] - i_index_sample_used;
1314
1315 i_used = __MIN( i_rest, i_sample_count );
1316
1317 i_index_sample_used += i_used;
1318 i_sample_count -= i_used;
1319 i_next_dts += i_used * stts->i_sample_delta[i_index];
1320
1321 ck->p_sample_count_dts[i] = i_used;
1322 ck->p_sample_delta_dts[i] = stts->i_sample_delta[i_index];
1323 if( i_used > 0 )
1324 ck->i_last_dts = i_next_dts - ck->p_sample_delta_dts[i];
1325
1326 if( i_index_sample_used >= stts->i_sample_count[i_index] )
1327 {
1328 i_index++;
1329 i_index_sample_used = 0;
1330 }
1331 }
1332 }
1333
1334 /* Find ctts
1335 * Gives the delta between decoding time (dts) and composition table (pts)
1336 */
1337 p_box = MP4_BoxGet( p_demux_track->p_stbl, "ctts" );
1338 if( p_box )
1339 {
1340 MP4_Box_data_ctts_t *ctts = p_box->data.p_ctts;
1341
1342 msg_Warn( p_demux, "CTTS table" );
1343
1344 /* Create pts-dts table per chunk */
1345 i_index = 0; i_index_sample_used = 0;
1346 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1347 {
1348 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1349 int64_t i_entry, i_sample_count, i;
1350
1351 /* count how many entries are needed for this chunk
1352 * for p_sample_delta_dts and p_sample_count_dts */
1353 i_sample_count = ck->i_sample_count;
1354
1355 i_entry = 0;
1356 while( i_sample_count > 0 )
1357 {
1358 i_sample_count -= ctts->i_sample_count[i_index+i_entry];
1359
1360 /* don't count already used sample in this entry */
1361 if( i_entry == 0 )
1362 i_sample_count += i_index_sample_used;
1363
1364 i_entry++;
1365 }
1366
1367 /* allocate them */
1368 ck->p_sample_count_pts = calloc( i_entry, sizeof( uint32_t ) );
1369 ck->p_sample_offset_pts = calloc( i_entry, sizeof( int32_t ) );
1370 if( !ck->p_sample_count_pts || !ck->p_sample_offset_pts )
1371 return VLC_ENOMEM;
1372
1373 /* now copy */
1374 i_sample_count = ck->i_sample_count;
1375 for( i = 0; i < i_entry; i++ )
1376 {
1377 int64_t i_used;
1378 int64_t i_rest;
1379
1380 i_rest = ctts->i_sample_count[i_index] -
1381 i_index_sample_used;
1382
1383 i_used = __MIN( i_rest, i_sample_count );
1384
1385 i_index_sample_used += i_used;
1386 i_sample_count -= i_used;
1387
1388 ck->p_sample_count_pts[i] = i_used;
1389 ck->p_sample_offset_pts[i] = ctts->i_sample_offset[i_index];
1390
1391 if( i_index_sample_used >= ctts->i_sample_count[i_index] )
1392 {
1393 i_index++;
1394 i_index_sample_used = 0;
1395 }
1396 }
1397 }
1398 }
1399
1400 msg_Dbg( p_demux, "track[Id 0x%x] read %d samples length:%"PRId64"s",
1401 p_demux_track->i_track_ID, p_demux_track->i_sample_count,
1402 i_next_dts / p_demux_track->i_timescale );
1403
1404 return VLC_SUCCESS;
1405 }
1406
1407 /**
1408 * It computes the sample rate for a video track using the given sample
1409 * description index
1410 */
1411 static void TrackGetESSampleRate( unsigned *pi_num, unsigned *pi_den,
1412 const mp4_track_t *p_track,
1413 unsigned i_sd_index,
1414 unsigned i_chunk )
1415 {
1416 *pi_num = 0;
1417 *pi_den = 0;
1418
1419 if( p_track->i_chunk_count <= 0 )
1420 return;
1421
1422 /* */
1423 const mp4_chunk_t *p_chunk = &p_track->chunk[i_chunk];
1424 while( p_chunk > &p_track->chunk[0] &&
1425 p_chunk[-1].i_sample_description_index == i_sd_index )
1426 {
1427 p_chunk--;
1428 }
1429
1430 uint64_t i_sample = 0;
1431 uint64_t i_first_dts = p_chunk->i_first_dts;
1432 uint64_t i_last_dts;
1433 do
1434 {
1435 i_sample += p_chunk->i_sample_count;
1436 i_last_dts = p_chunk->i_last_dts;
1437 p_chunk++;
1438 }
1439 while( p_chunk < &p_track->chunk[p_track->i_chunk_count] &&
1440 p_chunk->i_sample_description_index == i_sd_index );
1441
1442 if( i_sample > 1 && i_first_dts < i_last_dts )
1443 vlc_ureduce( pi_num, pi_den,
1444 ( i_sample - 1) * p_track->i_timescale,
1445 i_last_dts - i_first_dts,
1446 UINT16_MAX);
1447 }
1448
1449 /*
1450 * TrackCreateES:
1451 * Create ES and PES to init decoder if needed, for a track starting at i_chunk
1452 */
1453 static int TrackCreateES( demux_t *p_demux, mp4_track_t *p_track,
1454 unsigned int i_chunk, es_out_id_t **pp_es )
1455 {
1456 const unsigned i_sample_description_index =
1457 p_track->chunk[i_chunk].i_sample_description_index;
1458 MP4_Box_t *p_sample;
1459 MP4_Box_t *p_esds;
1460 MP4_Box_t *p_frma;
1461 MP4_Box_t *p_enda;
1462
1463 if( pp_es )
1464 *pp_es = NULL;
1465
1466 if( !i_sample_description_index )
1467 {
1468 msg_Warn( p_demux, "invalid SampleEntry index (track[Id 0x%x])",
1469 p_track->i_track_ID );
1470 return VLC_EGENERIC;
1471 }
1472
1473 p_sample = MP4_BoxGet( p_track->p_stsd, "[%d]",
1474 i_sample_description_index - 1 );
1475
1476 if( !p_sample ||
1477 ( !p_sample->data.p_data && p_track->fmt.i_cat != SPU_ES ) )
1478 {
1479 msg_Warn( p_demux, "cannot find SampleEntry (track[Id 0x%x])",
1480 p_track->i_track_ID );
1481 return VLC_EGENERIC;
1482 }
1483
1484 p_track->p_sample = p_sample;
1485
1486 if( ( p_frma = MP4_BoxGet( p_track->p_sample, "sinf/frma" ) ) )
1487 {
1488 msg_Warn( p_demux, "Original Format Box: %4.4s", (char *)&p_frma->data.p_frma->i_type );
1489
1490 p_sample->i_type = p_frma->data.p_frma->i_type;
1491 }
1492
1493 p_enda = MP4_BoxGet( p_sample, "wave/enda" );
1494 if( !p_enda )
1495 p_enda = MP4_BoxGet( p_sample, "enda" );
1496
1497 if( p_track->fmt.i_cat == AUDIO_ES && ( p_track->i_sample_size == 1 || p_track->i_sample_size == 2 ) )
1498 {
1499 MP4_Box_data_sample_soun_t *p_soun;
1500
1501 p_soun = p_sample->data.p_sample_soun;
1502
1503 if( p_soun->i_qt_version == 0 )
1504 {
1505 switch( p_sample->i_type )
1506 {
1507 case VLC_FOURCC( 'i', 'm', 'a', '4' ):
1508 p_soun->i_qt_version = 1;
1509 p_soun->i_sample_per_packet = 64;
1510 p_soun->i_bytes_per_packet = 34;
1511 p_soun->i_bytes_per_frame = 34 * p_soun->i_channelcount;
1512 p_soun->i_bytes_per_sample = 2;
1513 break;
1514 case VLC_FOURCC( 'M', 'A', 'C', '3' ):
1515 p_soun->i_qt_version = 1;
1516 p_soun->i_sample_per_packet = 6;
1517 p_soun->i_bytes_per_packet = 2;
1518 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1519 p_soun->i_bytes_per_sample = 2;
1520 break;
1521 case VLC_FOURCC( 'M', 'A', 'C', '6' ):
1522 p_soun->i_qt_version = 1;
1523 p_soun->i_sample_per_packet = 12;
1524 p_soun->i_bytes_per_packet = 2;
1525 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1526 p_soun->i_bytes_per_sample = 2;
1527 break;
1528 case VLC_FOURCC( 'a', 'l', 'a', 'w' ):
1529 case VLC_FOURCC( 'u', 'l', 'a', 'w' ):
1530 p_soun->i_samplesize = 8;
1531 break;
1532 case VLC_FOURCC( 'N', 'O', 'N', 'E' ):
1533 case VLC_FOURCC( 'r', 'a', 'w', ' ' ):
1534 case VLC_FOURCC( 't', 'w', 'o', 's' ):
1535 case VLC_FOURCC( 's', 'o', 'w', 't' ):
1536 /* What would be the fun if you could trust the .mov */
1537 p_track->i_sample_size = ((p_soun->i_samplesize+7)/8) * p_soun->i_channelcount;
1538 break;
1539 default:
1540 break;
1541 }
1542
1543 }
1544 else if( p_soun->i_qt_version == 1 && p_soun->i_sample_per_packet <= 0 )
1545 {
1546 p_soun->i_qt_version = 0;
1547 }
1548 }
1549 else if( p_track->fmt.i_cat == AUDIO_ES && p_sample->data.p_sample_soun->i_qt_version == 1 )
1550 {
1551 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1552
1553 switch( p_sample->i_type )
1554 {
1555 case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
1556 case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
1557 {
1558 if( p_track->i_sample_size > 1 )
1559 p_soun->i_qt_version = 0;
1560 break;
1561 }
1562 case( VLC_FOURCC( 'a', 'c', '-', '3' ) ):
1563 case( VLC_FOURCC( 'e', 'c', '-', '3' ) ):
1564 case( VLC_FOURCC( 'm', 's', 0x20, 0x00 ) ):
1565 p_soun->i_qt_version = 0;
1566 break;
1567 default:
1568 break;
1569 }
1570 }
1571
1572 /* */
1573 switch( p_track->fmt.i_cat )
1574 {
1575 case VIDEO_ES:
1576 p_track->fmt.video.i_width = p_sample->data.p_sample_vide->i_width;
1577 p_track->fmt.video.i_height = p_sample->data.p_sample_vide->i_height;
1578 p_track->fmt.video.i_bits_per_pixel =
1579 p_sample->data.p_sample_vide->i_depth;
1580
1581 /* fall on display size */
1582 if( p_track->fmt.video.i_width <= 0 )
1583 p_track->fmt.video.i_width = p_track->i_width;
1584 if( p_track->fmt.video.i_height <= 0 )
1585 p_track->fmt.video.i_height = p_track->i_height;
1586
1587 /* Find out apect ratio from display size */
1588 if( p_track->i_width > 0 && p_track->i_height > 0 &&
1589 /* Work-around buggy muxed files */
1590 p_sample->data.p_sample_vide->i_width != p_track->i_width )
1591 {
1592 p_track->fmt.video.i_sar_num = p_track->i_width * p_track->fmt.video.i_height;
1593 p_track->fmt.video.i_sar_den = p_track->i_height * p_track->fmt.video.i_width;
1594 }
1595
1596 /* Support for cropping (eg. in H263 files) */
1597 p_track->fmt.video.i_visible_width = p_track->fmt.video.i_width;
1598 p_track->fmt.video.i_visible_height = p_track->fmt.video.i_height;
1599
1600 /* Frame rate */
1601 TrackGetESSampleRate( &p_track->fmt.video.i_frame_rate,
1602 &p_track->fmt.video.i_frame_rate_base,
1603 p_track, i_sample_description_index, i_chunk );
1604 p_demux->p_sys->f_fps = (float)p_track->fmt.video.i_frame_rate /
1605 (float)p_track->fmt.video.i_frame_rate_base;
1606 break;
1607
1608 case AUDIO_ES:
1609 p_track->fmt.audio.i_channels =
1610 p_sample->data.p_sample_soun->i_channelcount;
1611 p_track->fmt.audio.i_rate =
1612 p_sample->data.p_sample_soun->i_sampleratehi;
1613 p_track->fmt.i_bitrate = p_sample->data.p_sample_soun->i_channelcount *
1614 p_sample->data.p_sample_soun->i_sampleratehi *
1615 p_sample->data.p_sample_soun->i_samplesize;
1616 p_track->fmt.audio.i_bitspersample =
1617 p_sample->data.p_sample_soun->i_samplesize;
1618
1619 if( p_track->i_sample_size != 0 &&
1620 p_sample->data.p_sample_soun->i_qt_version == 1 && p_sample->data.p_sample_soun->i_sample_per_packet <= 0 )
1621 {
1622 msg_Err( p_demux, "Invalid sample per packet value for qt_version 1" );
1623 return VLC_EGENERIC;
1624 }
1625 break;
1626
1627 default:
1628 break;
1629 }
1630
1631
1632 /* It's a little ugly but .. there are special cases */
1633 switch( p_sample->i_type )
1634 {
1635 case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
1636 case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
1637 {
1638 p_track->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
1639 break;
1640 }
1641 case( VLC_FOURCC( 'a', 'c', '-', '3' ) ):
1642 {
1643 MP4_Box_t *p_dac3_box = MP4_BoxGet( p_sample, "dac3", 0 );
1644
1645 p_track->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
1646 if( p_dac3_box )
1647 {
1648 static const int pi_bitrate[] = {
1649 32, 40, 48, 56,
1650 64, 80, 96, 112,
1651 128, 160, 192, 224,
1652 256, 320, 384, 448,
1653 512, 576, 640,
1654 };
1655 MP4_Box_data_dac3_t *p_dac3 = p_dac3_box->data.p_dac3;
1656 p_track->fmt.audio.i_channels = 0;
1657 p_track->fmt.i_bitrate = 0;
1658 if( p_dac3->i_bitrate_code < sizeof(pi_bitrate)/sizeof(*pi_bitrate) )
1659 p_track->fmt.i_bitrate = pi_bitrate[p_dac3->i_bitrate_code] * 1000;
1660 p_track->fmt.audio.i_bitspersample = 0;
1661 }
1662 break;
1663 }
1664 case( VLC_FOURCC( 'e', 'c', '-', '3' ) ):
1665 {
1666 p_track->fmt.i_codec = VLC_FOURCC( 'e', 'a', 'c', '3' );
1667 break;
1668 }
1669
1670 case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
1671 case( VLC_FOURCC( 'N', 'O', 'N', 'E' ) ):
1672 {
1673 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1674
1675 if(p_soun && (p_soun->i_samplesize+7)/8 == 1 )
1676 p_track->fmt.i_codec = VLC_FOURCC( 'u', '8', ' ', ' ' );
1677 else
1678 p_track->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1679
1680 /* Buggy files workaround */
1681 if( p_sample->data.p_sample_soun && (p_track->i_timescale !=
1682 p_sample->data.p_sample_soun->i_sampleratehi) )
1683 {
1684 MP4_Box_data_sample_soun_t *p_soun =
1685 p_sample->data.p_sample_soun;
1686
1687 msg_Warn( p_demux, "i_timescale (%"PRIu64") != i_sampleratehi "
1688 "(%u), making both equal (report any problem).",
1689 p_track->i_timescale, p_soun->i_sampleratehi );
1690
1691 if( p_soun->i_sampleratehi )
1692 p_track->i_timescale = p_soun->i_sampleratehi;
1693 else
1694 p_soun->i_sampleratehi = p_track->i_timescale;
1695 }
1696 break;
1697 }
1698
1699 case( VLC_FOURCC( 's', '2', '6', '3' ) ):
1700 p_track->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '3' );
1701 break;
1702
1703 case( VLC_FOURCC( 't', 'e', 'x', 't' ) ):
1704 case( VLC_FOURCC( 't', 'x', '3', 'g' ) ):
1705 p_track->fmt.i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
1706 /* FIXME: Not true, could be UTF-16 with a Byte Order Mark (0xfeff) */
1707 /* FIXME UTF-8 doesn't work here ? */
1708 if( p_track->b_mac_encoding )
1709 p_track->fmt.subs.psz_encoding = strdup( "MAC" );
1710 else
1711 p_track->fmt.subs.psz_encoding = strdup( "UTF-8" );
1712 break;
1713
1714 case VLC_FOURCC('y','v','1','2'):
1715 p_track->fmt.i_codec = VLC_FOURCC('Y','V','1','2');
1716 break;
1717 case VLC_FOURCC('y','u','v','2'):
1718 p_track->fmt.i_codec = VLC_FOURCC('Y','U','Y','2');
1719 break;
1720
1721 case VLC_FOURCC('i','n','2','4'):
1722 p_track->fmt.i_codec = p_enda && p_enda->data.p_enda->i_little_endian == 1 ?
1723 VLC_FOURCC('4','2','n','i') : VLC_FOURCC('i','n','2','4');
1724 break;
1725 case VLC_FOURCC('f','l','3','2'):
1726 p_track->fmt.i_codec = p_enda && p_enda->data.p_enda->i_little_endian == 1 ?
1727 VLC_CODEC_F32L : VLC_CODEC_F32B;
1728 break;
1729 case VLC_FOURCC('f','l','6','4'):
1730 p_track->fmt.i_codec = p_enda && p_enda->data.p_enda->i_little_endian == 1 ?
1731 VLC_CODEC_F64L : VLC_CODEC_F64B;
1732 break;
1733
1734 default:
1735 p_track->fmt.i_codec = p_sample->i_type;
1736 break;
1737 }
1738
1739 /* now see if esds is present and if so create a data packet
1740 with decoder_specific_info */
1741 #define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
1742 if( ( ( p_esds = MP4_BoxGet( p_sample, "esds" ) ) ||
1743 ( p_esds = MP4_BoxGet( p_sample, "wave/esds" ) ) )&&
1744 ( p_esds->data.p_esds )&&
1745 ( p_decconfig ) )
1746 {
1747 /* First update information based on i_objectTypeIndication */
1748 switch( p_decconfig->i_objectTypeIndication )
1749 {
1750 case( 0x20 ): /* MPEG4 VIDEO */
1751 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','v' );
1752 break;
1753 case( 0x40):
1754 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1755 if( p_decconfig->i_decoder_specific_info_len >= 2 &&
1756 p_decconfig->p_decoder_specific_info[0] == 0xF8 &&
1757 (p_decconfig->p_decoder_specific_info[1]&0xE0) == 0x80 )
1758 {
1759 p_track->fmt.i_codec = VLC_CODEC_ALS;
1760 }
1761 break;
1762 case( 0x60):
1763 case( 0x61):
1764 case( 0x62):
1765 case( 0x63):
1766 case( 0x64):
1767 case( 0x65): /* MPEG2 video */
1768 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1769 break;
1770 /* Theses are MPEG2-AAC */
1771 case( 0x66): /* main profile */
1772 case( 0x67): /* Low complexity profile */
1773 case( 0x68): /* Scaleable Sampling rate profile */
1774 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1775 break;
1776 /* true MPEG 2 audio */
1777 case( 0x69):
1778 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1779 break;
1780 case( 0x6a): /* MPEG1 video */
1781 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1782 break;
1783 case( 0x6b): /* MPEG1 audio */
1784 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1785 break;
1786 case( 0x6c ): /* jpeg */
1787 p_track->fmt.i_codec = VLC_FOURCC( 'j','p','e','g' );
1788 break;
1789 case( 0x6d ): /* png */
1790 p_track->fmt.i_codec = VLC_FOURCC( 'p','n','g',' ' );
1791 break;
1792 case( 0x6e ): /* jpeg200 */
1793 p_track->fmt.i_codec = VLC_FOURCC( 'M','J','2','C' );
1794 break;
1795 case( 0xa3 ): /* vc1 */
1796 p_track->fmt.i_codec = VLC_FOURCC( 'W','V','C','1' );
1797 break;
1798
1799 /* Private ID */
1800 case( 0xe0 ): /* NeroDigital: dvd subs */
1801 if( p_track->fmt.i_cat == SPU_ES )
1802 {
1803 p_track->fmt.i_codec = VLC_FOURCC( 's','p','u',' ' );
1804 if( p_track->i_width > 0 )
1805 p_track->fmt.subs.spu.i_original_frame_width = p_track->i_width;
1806 if( p_track->i_height > 0 )
1807 p_track->fmt.subs.spu.i_original_frame_height = p_track->i_height;
1808 break;
1809 }
1810 case( 0xe1 ): /* QCelp for 3gp */
1811 if( p_track->fmt.i_cat == AUDIO_ES )
1812 {
1813 p_track->fmt.i_codec = VLC_FOURCC( 'Q','c','l','p' );
1814 }
1815 break;
1816
1817 /* Fallback */
1818 default:
1819 /* Unknown entry, but don't touch i_fourcc */
1820 msg_Warn( p_demux,
1821 "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
1822 p_decconfig->i_objectTypeIndication,
1823 p_track->i_track_ID );
1824 break;
1825 }
1826 p_track->fmt.i_extra = p_decconfig->i_decoder_specific_info_len;
1827 if( p_track->fmt.i_extra > 0 )
1828 {
1829 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1830 memcpy( p_track->fmt.p_extra, p_decconfig->p_decoder_specific_info,
1831 p_track->fmt.i_extra );
1832 }
1833 }
1834 else
1835 {
1836 switch( p_sample->i_type )
1837 {
1838 /* qt decoder, send the complete chunk */
1839 case VLC_FOURCC ('h', 'd', 'v', '1'): // HDV 720p30
1840 case VLC_FOURCC ('h', 'd', 'v', '2'): // HDV 1080i60
1841 case VLC_FOURCC ('h', 'd', 'v', '3'): // HDV 1080i50
1842 case VLC_FOURCC ('h', 'd', 'v', '5'): // HDV 720p25
1843 case VLC_FOURCC ('m', 'x', '5', 'n'): // MPEG2 IMX NTSC 525/60 50mb/s produced by FCP
1844 case VLC_FOURCC ('m', 'x', '5', 'p'): // MPEG2 IMX PAL 625/60 50mb/s produced by FCP
1845 case VLC_FOURCC ('m', 'x', '4', 'n'): // MPEG2 IMX NTSC 525/60 40mb/s produced by FCP
1846 case VLC_FOURCC ('m', 'x', '4', 'p'): // MPEG2 IMX PAL 625/60 40mb/s produced by FCP
1847 case VLC_FOURCC ('m', 'x', '3', 'n'): // MPEG2 IMX NTSC 525/60 30mb/s produced by FCP
1848 case VLC_FOURCC ('m', 'x', '3', 'p'): // MPEG2 IMX PAL 625/50 30mb/s produced by FCP
1849 case VLC_FOURCC ('x', 'd', 'v', '2'): // XDCAM HD 1080i60
1850 case VLC_FOURCC ('A', 'V', 'm', 'p'): // AVID IMX PAL
1851 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1852 break;
1853 /* qt decoder, send the complete chunk */
1854 case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
1855 case VLC_FOURCC( 'S', 'V', 'Q', '1' ):
1856 case VLC_FOURCC( 'V', 'P', '3', '1' ):
1857 case VLC_FOURCC( '3', 'I', 'V', '1' ):
1858 case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
1859 p_track->fmt.i_extra =
1860 p_sample->data.p_sample_vide->i_qt_image_description;
1861 if( p_track->fmt.i_extra > 0 )
1862 {
1863 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1864 memcpy( p_track->fmt.p_extra,
1865 p_sample->data.p_sample_vide->p_qt_image_description,
1866 p_track->fmt.i_extra);
1867 }
1868 break;
1869 case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
1870 case VLC_FOURCC( 'Q', 'D', 'M', '2' ):
1871 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1872 case VLC_FOURCC( 'a', 'l', 'a', 'c' ):
1873 p_track->fmt.i_extra =
1874 p_sample->data.p_sample_soun->i_qt_description;
1875 if( p_track->fmt.i_extra > 0 )
1876 {
1877 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1878 memcpy( p_track->fmt.p_extra,
1879 p_sample->data.p_sample_soun->p_qt_description,
1880 p_track->fmt.i_extra);
1881 }
1882 break;
1883
1884 /* avc1: send avcC (h264 without annexe B, ie without start code)*/
1885 case VLC_FOURCC( 'a', 'v', 'c', '1' ):
1886 {
1887 MP4_Box_t *p_avcC = MP4_BoxGet( p_sample, "avcC" );
1888
1889 if( p_avcC )
1890 {
1891 p_track->fmt.i_extra = p_avcC->data.p_avcC->i_avcC;
1892 if( p_track->fmt.i_extra > 0 )
1893 {
1894 p_track->fmt.p_extra = malloc( p_avcC->data.p_avcC->i_avcC );
1895 memcpy( p_track->fmt.p_extra, p_avcC->data.p_avcC->p_avcC,
1896 p_track->fmt.i_extra );
1897 }
1898 }
1899 else
1900 {
1901 msg_Err( p_demux, "missing avcC" );
1902 }
1903 break;
1904 }
1905
1906 case VLC_FOURCC('m','s',0x00,0x02):
1907 case VLC_FOURCC('m','s',0x00,0x11):
1908 case VLC_FOURCC('Q','c','l','p'):
1909 p_track->fmt.audio.i_blockalign = p_sample->data.p_sample_soun->i_bytes_per_frame;
1910 break;
1911
1912 default:
1913 break;
1914 }
1915 }
1916
1917 #undef p_decconfig
1918
1919 if( pp_es )
1920 *pp_es = es_out_Add( p_demux->out, &p_track->fmt );
1921
1922 return VLC_SUCCESS;
1923 }
1924
1925 /* given a time it return sample/chunk
1926 * it also update elst field of the track
1927 */
1928 static int TrackTimeToSampleChunk( demux_t *p_demux, mp4_track_t *p_track,
1929 int64_t i_start, uint32_t *pi_chunk,
1930 uint32_t *pi_sample )
1931 {
1932 demux_sys_t *p_sys = p_demux->p_sys;
1933 MP4_Box_t *p_box_stss;
1934 uint64_t i_dts;
1935 unsigned int i_sample;
1936 unsigned int i_chunk;
1937 int i_index;
1938
1939 /* FIXME see if it's needed to check p_track->i_chunk_count */
1940 if( p_track->i_chunk_count == 0 )
1941 return( VLC_EGENERIC );
1942
1943 /* handle elst (find the correct one) */
1944 MP4_TrackSetELST( p_demux, p_track, i_start );
1945 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
1946 {
1947 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
1948 int64_t i_mvt= i_start * p_sys->i_timescale / (int64_t)1000000;
1949
1950 /* now calculate i_start for this elst */
1951 /* offset */
1952 i_start -= p_track->i_elst_time * INT64_C(1000000) / p_sys->i_timescale;
1953 if( i_start < 0 )
1954 {
1955 *pi_chunk = 0;
1956 *pi_sample= 0;
1957
1958 return VLC_SUCCESS;
1959 }
1960 /* to track time scale */
1961 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1962 /* add elst offset */
1963 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
1964 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
1965 elst->i_media_time[p_track->i_elst] > 0 )
1966 {
1967 i_start += elst->i_media_time[p_track->i_elst];
1968 }
1969
1970 msg_Dbg( p_demux, "elst (%d) gives %"PRId64"ms (movie)-> %"PRId64
1971 "ms (track)", p_track->i_elst,
1972 i_mvt * 1000 / p_sys->i_timescale,
1973 i_start * 1000 / p_track->i_timescale );
1974 }
1975 else
1976 {
1977 /* convert absolute time to in timescale unit */
1978 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1979 }
1980
1981 /* we start from sample 0/chunk 0, hope it won't take too much time */
1982 /* *** find good chunk *** */
1983 for( i_chunk = 0; ; i_chunk++ )
1984 {
1985 if( i_chunk + 1 >= p_track->i_chunk_count )
1986 {
1987 /* at the end and can't check if i_start in this chunk,
1988 it will be check while searching i_sample */
1989 i_chunk = p_track->i_chunk_count - 1;
1990 break;
1991 }
1992
1993 if( (uint64_t)i_start >= p_track->chunk[i_chunk].i_first_dts &&
1994 (uint64_t)i_start < p_track->chunk[i_chunk + 1].i_first_dts )
1995 {
1996 break;
1997 }
1998 }
1999
2000 /* *** find sample in the chunk *** */
2001 i_sample = p_track->chunk[i_chunk].i_sample_first;
2002 i_dts = p_track->chunk[i_chunk].i_first_dts;
2003 for( i_index = 0; i_sample < p_track->chunk[i_chunk].i_sample_count; )
2004 {
2005 if( i_dts +
2006 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
2007 p_track->chunk[i_chunk].p_sample_delta_dts[i_index] < (uint64_t)i_start )
2008 {
2009 i_dts +=
2010 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
2011 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
2012
2013 i_sample += p_track->chunk[i_chunk].p_sample_count_dts[i_index];
2014 i_index++;
2015 }
2016 else
2017 {
2018 if( p_track->chunk[i_chunk].p_sample_delta_dts[i_index] <= 0 )
2019 {
2020 break;
2021 }
2022 i_sample += ( i_start - i_dts ) /
2023 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
2024 break;
2025 }
2026 }
2027
2028 if( i_sample >= p_track->i_sample_count )
2029 {
2030 msg_Warn( p_demux, "track[Id 0x%x] will be disabled "
2031 "(seeking too far) chunk=%d sample=%d",
2032 p_track->i_track_ID, i_chunk, i_sample );
2033 return( VLC_EGENERIC );
2034 }
2035
2036
2037 /* *** Try to find nearest sync points *** */
2038 if( ( p_box_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
2039 {
2040 MP4_Box_data_stss_t *p_stss = p_box_stss->data.p_stss;
2041 msg_Dbg( p_demux, "track[Id 0x%x] using Sync Sample Box (stss)",
2042 p_track->i_track_ID );
2043 for( unsigned i_index = 0; i_index < p_stss->i_entry_count; i_index++ )
2044 {
2045 if( i_index >= p_stss->i_entry_count - 1 ||
2046 i_sample < p_stss->i_sample_number[i_index+1] )
2047 {
2048 unsigned i_sync_sample = p_stss->i_sample_number[i_index];
2049 msg_Dbg( p_demux, "stts gives %d --> %d (sample number)",
2050 i_sample, i_sync_sample );
2051
2052 if( i_sync_sample <= i_sample )
2053 {
2054 while( i_chunk > 0 &&
2055 i_sync_sample < p_track->chunk[i_chunk].i_sample_first )
2056 i_chunk--;
2057 }
2058 else
2059 {
2060 while( i_chunk < p_track->i_chunk_count - 1 &&
2061 i_sync_sample >= p_track->chunk[i_chunk].i_sample_first +
2062 p_track->chunk[i_chunk].i_sample_count )
2063 i_chunk++;
2064 }
2065 i_sample = i_sync_sample;
2066 break;
2067 }
2068 }
2069 }
2070 else
2071 {
2072 msg_Dbg( p_demux, "track[Id 0x%x] does not provide Sync "
2073 "Sample Box (stss)", p_track->i_track_ID );
2074 }
2075
2076 *pi_chunk = i_chunk;
2077 *pi_sample = i_sample;
2078
2079 return VLC_SUCCESS;
2080 }
2081
2082 static int TrackGotoChunkSample( demux_t *p_demux, mp4_track_t *p_track,
2083 unsigned int i_chunk, unsigned int i_sample )
2084 {
2085 bool b_reselect = false;
2086
2087 /* now see if actual es is ok */
2088 if( p_track->i_chunk >= p_track->i_chunk_count ||
2089 p_track->chunk[p_track->i_chunk].i_sample_description_index !=
2090 p_track->chunk[i_chunk].i_sample_description_index )
2091 {
2092 msg_Warn( p_demux, "recreate ES for track[Id 0x%x]",
2093 p_track->i_track_ID );
2094
2095 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
2096 p_track->p_es, &b_reselect );
2097
2098 es_out_Del( p_demux->out, p_track->p_es );
2099
2100 p_track->p_es = NULL;
2101
2102 if( TrackCreateES( p_demux, p_track, i_chunk, &p_track->p_es ) )
2103 {
2104 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
2105 p_track->i_track_ID );
2106
2107 p_track->b_ok = false;
2108 p_track->b_selected = false;
2109 return VLC_EGENERIC;
2110 }
2111 }
2112
2113 /* select again the new decoder */
2114 if( b_reselect )
2115 {
2116 es_out_Control( p_demux->out, ES_OUT_SET_ES, p_track->p_es );
2117 }
2118
2119 p_track->i_chunk = i_chunk;
2120 p_track->i_sample = i_sample;
2121
2122 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
2123 }
2124
2125 /****************************************************************************
2126 * MP4_TrackCreate:
2127 ****************************************************************************
2128 * Parse track information and create all needed data to run a track
2129 * If it succeed b_ok is set to 1 else to 0
2130 ****************************************************************************/
2131 static void MP4_TrackCreate( demux_t *p_demux, mp4_track_t *p_track,
2132 MP4_Box_t *p_box_trak,
2133 bool b_force_enable )
2134 {
2135 demux_sys_t *p_sys = p_demux->p_sys;
2136
2137 MP4_Box_t *p_tkhd = MP4_BoxGet( p_box_trak, "tkhd" );
2138 MP4_Box_t *p_tref = MP4_BoxGet( p_box_trak, "tref" );
2139 MP4_Box_t *p_elst;
2140
2141 MP4_Box_t *p_mdhd;
2142 MP4_Box_t *p_udta;
2143 MP4_Box_t *p_hdlr;
2144
2145 MP4_Box_t *p_vmhd;
2146 MP4_Box_t *p_smhd;
2147
2148 MP4_Box_t *p_drms;
2149
2150 unsigned int i;
2151 char language[4];
2152
2153 /* hint track unsupported */
2154
2155 /* set default value (-> track unusable) */
2156 p_track->b_ok = false;
2157 p_track->b_enable = false;
2158 p_track->b_selected = false;
2159 p_track->b_chapter = false;
2160 p_track->b_mac_encoding = false;
2161
2162 es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
2163
2164 if( !p_tkhd )
2165 {
2166 return;
2167 }
2168
2169 /* do we launch this track by default ? */
2170 p_track->b_enable =
2171 ( ( p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED ) != 0 );
2172 if( !p_track->b_enable )
2173 p_track->fmt.i_priority = -1;
2174
2175 p_track->i_track_ID = p_tkhd->data.p_tkhd->i_track_ID;
2176 p_track->i_width = p_tkhd->data.p_tkhd->i_width / 65536;
2177 p_track->i_height = p_tkhd->data.p_tkhd->i_height / 65536;
2178
2179 if( p_tref )
2180 {
2181 /* msg_Warn( p_demux, "unhandled box: tref --> FIXME" ); */
2182 }
2183
2184 p_mdhd = MP4_BoxGet( p_box_trak, "mdia/mdhd" );
2185 p_hdlr = MP4_BoxGet( p_box_trak, "mdia/hdlr" );
2186
2187 if( ( !p_mdhd )||( !p_hdlr ) )
2188 {
2189 return;
2190 }
2191
2192 p_track->i_timescale = p_mdhd->data.p_mdhd->i_timescale;
2193 if( !p_track->i_timescale )
2194 return;
2195
2196 if( p_mdhd->data.p_mdhd->i_language_code < 0x800 )
2197 {
2198 /* We can convert i_language_code into iso 639 code,
2199 * I won't */
2200 strcpy( language, MP4_ConvertMacCode( p_mdhd->data.p_mdhd->i_language_code ) );
2201 p_track->b_mac_encoding = true;
2202 }
2203 else
2204 {
2205 for( i = 0; i < 3; i++ )
2206 language[i] = p_mdhd->data.p_mdhd->i_language[i];
2207 language[3] = '\0';
2208 }
2209
2210 switch( p_hdlr->data.p_hdlr->i_handler_type )
2211 {
2212 case( FOURCC_soun ):
2213 if( !( p_smhd = MP4_BoxGet( p_box_trak, "mdia/minf/smhd" ) ) )
2214 {
2215 return;
2216 }
2217 p_track->fmt.i_cat = AUDIO_ES;
2218 break;
2219
2220 case( FOURCC_vide ):
2221 if( !( p_vmhd = MP4_BoxGet( p_box_trak, "mdia/minf/vmhd" ) ) )
2222 {
2223 return;
2224 }
2225 p_track->fmt.i_cat = VIDEO_ES;
2226 break;
2227
2228 case( FOURCC_text ):
2229 case( FOURCC_subp ):
2230 case( FOURCC_tx3g ):
2231 case( FOURCC_sbtl ):
2232 p_track->fmt.i_cat = SPU_ES;
2233 break;
2234
2235 default:
2236 return;
2237 }
2238
2239 p_track->i_elst = 0;
2240 p_track->i_elst_time = 0;
2241 if( ( p_track->p_elst = p_elst = MP4_BoxGet( p_box_trak, "edts/elst" ) ) )
2242 {
2243 MP4_Box_data_elst_t *elst = p_elst->data.p_elst;
2244 unsigned int i;
2245
2246 msg_Warn( p_demux, "elst box found" );
2247 for( i = 0; i < elst->i_entry_count; i++ )
2248 {
2249 msg_Dbg( p_demux, " - [%d] duration=%"PRId64"ms media time=%"PRId64
2250 "ms) rate=%d.%d", i,
2251 elst->i_segment_duration[i] * 1000 / p_sys->i_timescale,
2252 elst->i_media_time[i] >= 0 ?
2253 (int64_t)(elst->i_media_time[i] * 1000 / p_track->i_timescale) :
2254 INT64_C(-1),
2255 elst->i_media_rate_integer[i],
2256 elst->i_media_rate_fraction[i] );
2257 }
2258 }
2259
2260
2261 /* TODO
2262 add support for:
2263 p_dinf = MP4_BoxGet( p_minf, "dinf" );
2264 */
2265 if( !( p_track->p_stbl = MP4_BoxGet( p_box_trak,"mdia/minf/stbl" ) ) ||
2266 !( p_track->p_stsd = MP4_BoxGet( p_box_trak,"mdia/minf/stbl/stsd") ) )
2267 {
2268 return;
2269 }
2270
2271 p_drms = MP4_BoxGet( p_track->p_stsd, "drms" );
2272 p_track->b_drms = p_drms != NULL;
2273 p_track->p_drms = p_track->b_drms ?
2274 p_drms->data.p_sample_soun->p_drms : NULL;
2275
2276 if ( !p_drms )
2277 {
2278 p_drms = MP4_BoxGet( p_track->p_stsd, "drmi" );
2279 p_track->b_drms = p_drms != NULL;
2280 p_track->p_drms = p_track->b_drms ?
2281 p_drms->data.p_sample_vide->p_drms : NULL;
2282 }
2283
2284 if( p_drms )
2285 p_track->p_skcr = MP4_BoxGet( p_drms, "sinf/skcr" );
2286
2287 /* Set language */
2288 if( *language && strcmp( language, "```" ) && strcmp( language, "und" ) )
2289 {
2290 p_track->fmt.psz_language = strdup( language );
2291 }
2292
2293 p_udta = MP4_BoxGet( p_box_trak, "udta" );
2294 if( p_udta )
2295 {
2296 MP4_Box_t *p_0xa9xxx;
2297 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
2298 p_0xa9xxx = p_0xa9xxx->p_next )
2299 {
2300 switch( p_0xa9xxx->i_type )
2301 {
2302 case FOURCC_0xa9nam:
2303 p_track->fmt.psz_description =
2304 strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text );
2305 break;
2306 }
2307 }
2308 }
2309
2310 /* Create chunk index table and sample index table */
2311 if( TrackCreateChunksIndex( p_demux,p_track ) ||
2312 TrackCreateSamplesIndex( p_demux, p_track ) )
2313 {
2314 return; /* cannot create chunks index */
2315 }
2316
2317 p_track->i_chunk = 0;
2318 p_track->i_sample = 0;
2319
2320 /* Mark chapter only track */
2321 if( p_sys->p_tref_chap )
2322 {
2323 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
2324 unsigned int i;
2325
2326 for( i = 0; i < p_chap->i_entry_count; i++ )
2327 {
2328 if( p_track->i_track_ID == p_chap->i_track_ID[i] )
2329 {
2330 p_track->b_chapter = true;
2331 p_track->b_enable = false;
2332 break;
2333 }
2334 }
2335 }
2336
2337 /* now create es */
2338 if( b_force_enable &&
2339 ( p_track->fmt.i_cat == VIDEO_ES || p_track->fmt.i_cat == AUDIO_ES ) )
2340 {
2341 msg_Warn( p_demux, "Enabling track[Id 0x%x] (buggy file without enabled track)",
2342 p_track->i_track_ID );
2343 p_track->b_enable = true;
2344 p_track->fmt.i_priority = 0;
2345 }
2346
2347 p_track->p_es = NULL;
2348 if( TrackCreateES( p_demux,
2349 p_track, p_track->i_chunk,
2350 p_track->b_chapter ? NULL : &p_track->p_es ) )
2351 {
2352 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
2353 p_track->i_track_ID );
2354 return;
2355 }
2356 p_track->b_ok = true;
2357 #if 0
2358 {
2359 int i;
2360 for( i = 0; i < p_track->i_chunk_count; i++ )
2361 {
2362 fprintf( stderr, "%-5d sample_count=%d pts=%lld\n",
2363 i, p_track->chunk[i].i_sample_count,
2364 p_track->chunk[i].i_first_dts );
2365
2366 }
2367 }
2368 #endif
2369 }
2370
2371 /****************************************************************************
2372 * MP4_TrackDestroy:
2373 ****************************************************************************
2374 * Destroy a track created by MP4_TrackCreate.
2375 ****************************************************************************/
2376 static void MP4_TrackDestroy( mp4_track_t *p_track )
2377 {
2378 unsigned int i_chunk;
2379
2380 p_track->b_ok = false;
2381 p_track->b_enable = false;
2382 p_track->b_selected = false;
2383
2384 es_format_Clean( &p_track->fmt );
2385
2386 for( i_chunk = 0; i_chunk < p_track->i_chunk_count; i_chunk++ )
2387 {
2388 if( p_track->chunk )
2389 {
2390 FREENULL(p_track->chunk[i_chunk].p_sample_count_dts);
2391 FREENULL(p_track->chunk[i_chunk].p_sample_delta_dts );
2392
2393 FREENULL(p_track->chunk[i_chunk].p_sample_count_pts);
2394 FREENULL(p_track->chunk[i_chunk].p_sample_offset_pts );
2395 }
2396 }
2397 FREENULL( p_track->chunk );
2398
2399 if( !p_track->i_sample_size )
2400 {
2401 FREENULL( p_track->p_sample_size );
2402 }
2403 }
2404
2405 static int MP4_TrackSelect( demux_t *p_demux, mp4_track_t *p_track,
2406 mtime_t i_start )
2407 {
2408 if( !p_track->b_ok || p_track->b_chapter )
2409 {
2410 return VLC_EGENERIC;
2411 }
2412
2413 if( p_track->b_selected )
2414 {
2415 msg_Warn( p_demux, "track[Id 0x%x] already selected",
2416 p_track->i_track_ID );
2417 return VLC_SUCCESS;
2418 }
2419
2420 return MP4_TrackSeek( p_demux, p_track, i_start );
2421 }
2422
2423 static void MP4_TrackUnselect( demux_t *p_demux, mp4_track_t *p_track )
2424 {
2425 if( !p_track->b_ok || p_track->b_chapter )
2426 {
2427 return;
2428 }
2429
2430 if( !p_track->b_selected )
2431 {
2432 msg_Warn( p_demux, "track[Id 0x%x] already unselected",
2433 p_track->i_track_ID );
2434 return;
2435 }
2436 if( p_track->p_es )
2437 {
2438 es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE,
2439 p_track->p_es, false );
2440 }
2441
2442 p_track->b_selected = false;
2443 }
2444
2445 static int MP4_TrackSeek( demux_t *p_demux, mp4_track_t *p_track,
2446 mtime_t i_start )
2447 {
2448 uint32_t i_chunk;
2449 uint32_t i_sample;
2450
2451 if( !p_track->b_ok || p_track->b_chapter )
2452 return VLC_EGENERIC;
2453
2454 p_track->b_selected = false;
2455
2456 if( TrackTimeToSampleChunk( p_demux, p_track, i_start,
2457 &i_chunk, &i_sample ) )
2458 {
2459 msg_Warn( p_demux, "cannot select track[Id 0x%x]",
2460 p_track->i_track_ID );
2461 return VLC_EGENERIC;
2462 }
2463
2464 p_track->b_selected = true;
2465
2466 if( !TrackGotoChunkSample( p_demux, p_track, i_chunk, i_sample ) )
2467 p_track->b_selected = true;
2468
2469 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
2470 }
2471
2472
2473 /*
2474 * 3 types: for audio
2475 *
2476 */
2477 #define QT_V0_MAX_SAMPLES 1024
2478 static int MP4_TrackSampleSize( mp4_track_t *p_track )
2479 {
2480 int i_size;
2481 MP4_Box_data_sample_soun_t *p_soun;
2482
2483 if( p_track->i_sample_size == 0 )
2484 {
2485 /* most simple case */
2486 return p_track->p_sample_size[p_track->i_sample];
2487 }
2488 if( p_track->fmt.i_cat != AUDIO_ES )
2489 {
2490 return p_track->i_sample_size;
2491 }
2492
2493 p_soun = p_track->p_sample->data.p_sample_soun;
2494
2495 if( p_soun->i_qt_version == 1 )
2496 {
2497 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count;
2498 if( p_track->fmt.audio.i_blockalign > 1 )
2499 i_samples = p_soun->i_sample_per_packet;
2500
2501 i_size = i_samples / p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
2502 }
2503 else if( p_track->i_sample_size > 256 )
2504 {
2505 /* We do that so we don't read too much data
2506 * (in this case we are likely dealing with compressed data) */
2507 i_size = p_track->i_sample_size;
2508 }
2509 else
2510 {
2511 /* Read a bunch of samples at once */
2512 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count -
2513 ( p_track->i_sample -
2514 p_track->chunk[p_track->i_chunk].i_sample_first );
2515
2516 i_samples = __MIN( QT_V0_MAX_SAMPLES, i_samples );
2517 i_size = i_samples * p_track->i_sample_size;
2518 }
2519
2520 //fprintf( stderr, "size=%d\n", i_size );
2521 return i_size;
2522 }
2523
2524 static uint64_t MP4_TrackGetPos( mp4_track_t *p_track )
2525 {
2526 unsigned int i_sample;
2527 uint64_t i_pos;
2528
2529 i_pos = p_track->chunk[p_track->i_chunk].i_offset;
2530
2531 if( p_track->i_sample_size )
2532 {
2533 MP4_Box_data_sample_soun_t *p_soun =
2534 p_track->p_sample->data.p_sample_soun;
2535
2536 if( p_soun->i_qt_version == 0 )
2537 {
2538 i_pos += ( p_track->i_sample -
2539 p_track->chunk[p_track->i_chunk].i_sample_first ) *
2540 p_track->i_sample_size;
2541 }
2542 else
2543 {
2544 /* we read chunk by chunk unless a blockalign is requested */
2545 if( p_track->fmt.audio.i_blockalign > 1 )
2546 i_pos += ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first ) /
2547 p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
2548 }
2549 }
2550 else
2551 {
2552 for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
2553 i_sample < p_track->i_sample; i_sample++ )
2554 {
2555 i_pos += p_track->p_sample_size[i_sample];
2556 }
2557 }
2558
2559 return i_pos;
2560 }
2561
2562 static int MP4_TrackNextSample( demux_t *p_demux, mp4_track_t *p_track )
2563 {
2564 if( p_track->fmt.i_cat == AUDIO_ES && p_track->i_sample_size != 0 )
2565 {
2566 MP4_Box_data_sample_soun_t *p_soun;
2567
2568 p_soun = p_track->p_sample->data.p_sample_soun;
2569
2570 if( p_soun->i_qt_version == 1 )
2571 {
2572 /* we read chunk by chunk unless a blockalign is requested */
2573 if( p_track->fmt.audio.i_blockalign > 1 )
2574 p_track->i_sample += p_soun->i_sample_per_packet;
2575 else
2576 p_track->i_sample += p_track->chunk[p_track->i_chunk].i_sample_count;
2577 }
2578 else if( p_track->i_sample_size > 256 )
2579 {
2580 /* We do that so we don't read too much data
2581 * (in this case we are likely dealing with compressed data) */
2582 p_track->i_sample += 1;
2583 }
2584 else
2585 {
2586 /* FIXME */
2587 p_track->i_sample += QT_V0_MAX_SAMPLES;
2588 if( p_track->i_sample >
2589 p_track->chunk[p_track->i_chunk].i_sample_first +
2590 p_track->chunk[p_track->i_chunk].i_sample_count )
2591 {
2592 p_track->i_sample =
2593 p_track->chunk[p_track->i_chunk].i_sample_first +
2594 p_track->chunk[p_track->i_chunk].i_sample_count;
2595 }
2596 }
2597 }
2598 else
2599 {
2600 p_track->i_sample++;
2601 }
2602
2603 if( p_track->i_sample >= p_track->i_sample_count )
2604 return VLC_EGENERIC;
2605
2606 /* Have we changed chunk ? */
2607 if( p_track->i_sample >=
2608 p_track->chunk[p_track->i_chunk].i_sample_first +
2609 p_track->chunk[p_track->i_chunk].i_sample_count )
2610 {
2611 if( TrackGotoChunkSample( p_demux, p_track, p_track->i_chunk + 1,
2612 p_track->i_sample ) )
2613 {
2614 msg_Warn( p_demux, "track[0x%x] will be disabled "
2615 "(cannot restart decoder)", p_track->i_track_ID );
2616 MP4_TrackUnselect( p_demux, p_track );
2617 return VLC_EGENERIC;
2618 }
2619 }
2620
2621 /* Have we changed elst */
2622 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
2623 {
2624 demux_sys_t *p_sys = p_demux->p_sys;
2625 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
2626 uint64_t i_mvt = MP4_TrackGetDTS( p_demux, p_track ) *
2627 p_sys->i_timescale / (int64_t)1000000;
2628
2629 if( (unsigned int)p_track->i_elst < elst->i_entry_count &&
2630 i_mvt >= p_track->i_elst_time +
2631 elst->i_segment_duration[p_track->i_elst] )
2632 {
2633 MP4_TrackSetELST( p_demux, p_track,
2634 MP4_TrackGetDTS( p_demux, p_track ) );
2635 }
2636 }
2637
2638 return VLC_SUCCESS;
2639 }
2640
2641 static void MP4_TrackSetELST( demux_t *p_demux, mp4_track_t *tk,
2642 int64_t i_time )
2643 {
2644 demux_sys_t *p_sys = p_demux->p_sys;
2645 int i_elst_last = tk->i_elst;
2646
2647 /* handle elst (find the correct one) */
2648 tk->i_elst = 0;
2649 tk->i_elst_time = 0;
2650 if( tk->p_elst && tk->p_elst->data.p_elst->i_entry_count > 0 )
2651 {
2652 MP4_Box_data_elst_t *elst = tk->p_elst->data.p_elst;
2653 int64_t i_mvt= i_time * p_sys->i_timescale / (int64_t)1000000;
2654
2655 for( tk->i_elst = 0; (unsigned int)tk->i_elst < elst->i_entry_count; tk->i_elst++ )
2656 {
2657 mtime_t i_dur = elst->i_segment_duration[tk->i_elst];
2658
2659 if( tk->i_elst_time <= i_mvt && i_mvt < tk->i_elst_time + i_dur )
2660 {
2661 break;
2662 }
2663 tk->i_elst_time += i_dur;
2664 }
2665
2666 if( (unsigned int)tk->i_elst >= elst->i_entry_count )
2667 {
2668 /* msg_Dbg( p_demux, "invalid number of entry in elst" ); */
2669 tk->i_elst = elst->i_entry_count - 1;
2670 tk->i_elst_time -= elst->i_segment_duration[tk->i_elst];
2671 }
2672
2673 if( elst->i_media_time[tk->i_elst] < 0 )
2674 {
2675 /* track offset */
2676 tk->i_elst_time += elst->i_segment_duration[tk->i_elst];
2677 }
2678 }
2679 if( i_elst_last != tk->i_elst )
2680 {
2681 msg_Warn( p_demux, "elst old=%d new=%d", i_elst_last, tk->i_elst );
2682 }
2683 }
2684
2685 /* */
2686 static const char *MP4_ConvertMacCode( uint16_t i_code )
2687 {
2688 static const struct { const char *psz_iso639_1; uint16_t i_code; } p_cvt[] = {
2689 { "en", 0 }, { "fr", 1 }, { "de", 2 }, { "it", 3 }, { "nl", 4 },
2690 { "sv", 5 }, { "es", 6 }, { "da", 7 }, { "pt", 8 }, { "no", 9 },
2691 { "he", 10 }, { "ja", 11 }, { "ar", 12 }, { "fi", 13 }, { "el", 14 },
2692 { "is", 15 }, { "mt", 16 }, { "tr", 17 }, { "hr", 18 }, { "zh", 19 },
2693 { "ur", 20 }, { "hi", 21 }, { "th", 22 }, { "ko", 23 }, { "lt", 24 },
2694 { "pl", 25 }, { "hu", 26 }, { "et", 27 }, { "lv", 28 }, //{ "??", 29 },
2695 { "fo", 30 }, { "fa", 31 }, { "ru", 32 }, { "zh", 33 }, { "nl", 34 },
2696 { "ga", 35 }, { "sq", 36 }, { "ro", 37 }, { "cs", 38 }, { "sk", 39 },
2697 { "sl", 40 }, { "yi", 41 }, { "sr", 42 }, { "mk", 43 }, { "bg", 44 },
2698 { "uk", 45 }, { "be", 46 }, { "uz", 47 }, { "az", 48 }, { "kk", 48 },
2699 { "az", 50 }, { "hy", 51 }, { "ka", 52 }, { "mo", 53 }, { "ky", 54 },
2700 { "tg", 55 }, { "tk", 56 }, { "mn", 57 }, { "mn", 58 }, { "ps", 59 },
2701 { "ku", 60 }, { "ks", 61 }, { "sd", 62 }, { "bo", 63 }, { "ne", 64 },
2702 { "sa", 65 }, { "mr", 66 }, { "bn", 67 }, { "as", 68 }, { "gu", 69 },
2703 { "pa", 70 }, { "or", 71 }, { "ml", 72 }, { "kn", 73 }, { "ta", 74 },
2704 { "te", 75 }, { "si", 76 }, { "my", 77 }, { "km", 78 }, { "lo", 79 },
2705 { "vi", 80 }, { "id", 81 }, { "tl", 82 }, { "ms", 83 }, { "ms", 84 },
2706 { "am", 85 }, { "ti", 86 }, { "om", 87 }, { "so", 88 }, { "sw", 89 },
2707 { "rw", 90 }, { "rn", 91 }, { "ny", 92 }, { "mg", 93 }, { "eo", 94 },
2708
2709 { "cy", 128 }, { "eu", 129 },
2710 { "ca", 130 }, { "la", 131 }, { "qu", 132 }, { "gn", 133 }, { "ay", 134 },
2711 { "tt", 135 }, { "ug", 136 }, { "dz", 137 }, { "jv", 138 }, { "su", 139 },
2712 { "gl", 140 }, { "af", 141 }, { "br", 142 }, { "iu", 143 }, { "gd", 144 },
2713 { "gv", 145 }, { "ga", 146 }, { "to", 147 }, { "el", 148 },
2714 /* */
2715 { NULL, 0 }
2716 };
2717 int i;
2718 for( i = 0; p_cvt[i].psz_iso639_1 != NULL; i++ )
2719 {
2720 if( p_cvt[i].i_code == i_code )
2721 return p_cvt[i].psz_iso639_1;
2722 }
2723 return "";
2724 }
VLC Solaris and OpenSolaris fixes