* src/libvlc.h: fixed spelling mistake.
[vlc.git] / modules / demux / mp4 / mp4.c
1 /*****************************************************************************
2  * mp4.c : MP4 file input module for vlc
3  *****************************************************************************
4  * Copyright (C) 2001 VideoLAN
5  * $Id: mp4.c,v 1.32 2003/05/22 21:42:44 gbazin Exp $
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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
21  *****************************************************************************/
22
23 /*****************************************************************************
24  * Preamble
25  *****************************************************************************/
26 #include <stdlib.h>                                      /* malloc(), free() */
27 #include <string.h>                                              /* strdup() */
28 #include <errno.h>
29 #include <sys/types.h>
30
31 #include <vlc/vlc.h>
32 #include <vlc/input.h>
33 #include <vlc_playlist.h>
34 #include "codecs.h"
35 #include "libmp4.h"
36 #include "mp4.h"
37
38 /*****************************************************************************
39  * Local prototypes
40  *****************************************************************************/
41 static int    MP4Init    ( vlc_object_t * );
42 static void __MP4End     ( vlc_object_t * );
43 static int    MP4Demux   ( input_thread_t * );
44
45 static int    MP4DemuxRef( input_thread_t *p_input )
46 {
47     return 0;
48 }
49
50 /* New input could have something like that... */
51 static int   MP4Seek     ( input_thread_t *, mtime_t );
52
53 #define MP4End(a) __MP4End(VLC_OBJECT(a))
54
55 /*****************************************************************************
56  * Module descriptor
57  *****************************************************************************/
58 vlc_module_begin();
59     set_description( _("MP4 demuxer") );
60     set_capability( "demux", 242 );
61     set_callbacks( MP4Init, __MP4End );
62 vlc_module_end();
63
64 /*****************************************************************************
65  * Declaration of local function
66  *****************************************************************************/
67
68 static void MP4_TrackCreate ( input_thread_t *,
69                               track_data_mp4_t *,
70                               MP4_Box_t  * );
71 static void MP4_TrackDestroy( input_thread_t *,
72                               track_data_mp4_t * );
73
74 static int  MP4_TrackSelect ( input_thread_t *,
75                               track_data_mp4_t *,
76                               mtime_t );
77 static void MP4_TrackUnselect(input_thread_t *,
78                               track_data_mp4_t * );
79
80 static int  MP4_TrackSeek   ( input_thread_t *,
81                               track_data_mp4_t *,
82                               mtime_t );
83
84 static uint64_t MP4_GetTrackPos( track_data_mp4_t * );
85 static int  MP4_TrackSampleSize( track_data_mp4_t * );
86 static int  MP4_TrackNextSample( input_thread_t *,
87                                  track_data_mp4_t * );
88
89 #define MP4_Set4BytesLE( p, dw ) \
90     *((uint8_t*)p)   = ( (dw)&0xff ); \
91     *((uint8_t*)p+1) = ( ((dw)>> 8)&0xff ); \
92     *((uint8_t*)p+2) = ( ((dw)>>16)&0xff ); \
93     *((uint8_t*)p+3) = ( ((dw)>>24)&0xff )
94
95 #define MP4_Set2BytesLE( p, dw ) \
96     *((uint8_t*)p) = ( (dw)&0xff ); \
97     *((uint8_t*)p+1) = ( ((dw)>> 8)&0xff )
98
99 #define FREE( p ) \
100     if( p ) { free( p ); (p) = NULL;}
101
102 /*****************************************************************************
103  * MP4Init: check file and initializes MP4 structures
104  *****************************************************************************/
105 static int MP4Init( vlc_object_t * p_this )
106 {
107     input_thread_t  *p_input = (input_thread_t *)p_this;
108     uint8_t         *p_peek;
109
110     demux_sys_t     *p_demux;
111
112     MP4_Box_t       *p_ftyp;
113
114     MP4_Box_t       *p_rmra;
115
116     MP4_Box_t       *p_mvhd;
117     MP4_Box_t       *p_trak;
118
119     unsigned int    i;
120     vlc_bool_t      b_audio;
121
122     /* I need to seek */
123     if( !p_input->stream.b_seekable )
124     {
125         msg_Warn( p_input, "MP4 plugin discarded (unseekable)" );
126         return( VLC_EGENERIC );
127
128     }
129     /* Initialize access plug-in structures. */
130     if( p_input->i_mtu == 0 )
131     {
132         /* Improve speed. */
133         p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE ;
134     }
135
136     p_input->pf_demux = MP4Demux;
137
138     /* a little test to see if it could be a mp4 */
139     if( input_Peek( p_input, &p_peek, 8 ) < 8 )
140     {
141         msg_Warn( p_input, "MP4 plugin discarded (cannot peek)" );
142         return( VLC_EGENERIC );
143     }
144
145
146     switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
147     {
148         case( FOURCC_ftyp ):
149         case( FOURCC_moov ):
150         case( FOURCC_foov ):
151         case( FOURCC_moof ):
152         case( FOURCC_mdat ):
153         case( FOURCC_udta ):
154         case( FOURCC_free ):
155         case( FOURCC_skip ):
156         case( FOURCC_wide ):
157             break;
158          default:
159             msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
160             return( VLC_EGENERIC );
161     }
162
163     /* create our structure that will contains all data */
164     if( !( p_input->p_demux_data =
165                 p_demux = malloc( sizeof( demux_sys_t ) ) ) )
166     {
167         msg_Err( p_input, "out of memory" );
168         return( VLC_EGENERIC );
169     }
170     memset( p_demux, 0, sizeof( demux_sys_t ) );
171     p_input->p_demux_data = p_demux;
172
173
174     /* Now load all boxes ( except raw data ) */
175     if( !MP4_BoxGetRoot( p_input, &p_demux->box_root ) )
176     {
177         msg_Warn( p_input, "MP4 plugin discarded (not a valid file)" );
178         return( VLC_EGENERIC );
179     }
180
181     MP4_BoxDumpStructure( p_input, &p_demux->box_root );
182
183     if( ( p_ftyp = MP4_BoxGet( &p_demux->box_root, "/ftyp" ) ) )
184     {
185         switch( p_ftyp->data.p_ftyp->i_major_brand )
186         {
187             case( FOURCC_isom ):
188                 msg_Dbg( p_input,
189                          "ISO Media file (isom) version %d.",
190                          p_ftyp->data.p_ftyp->i_minor_version );
191                 break;
192             default:
193                 msg_Dbg( p_input,
194                          "unrecognized major file specification (%4.4s).",
195                           (char*)&p_ftyp->data.p_ftyp->i_major_brand );
196                 break;
197         }
198     }
199     else
200     {
201         msg_Dbg( p_input, "file type box missing (assuming ISO Media file)" );
202     }
203
204     /* the file need to have one moov box */
205     if( MP4_BoxCount( &p_demux->box_root, "/moov" ) <= 0 )
206     {
207         MP4_Box_t *p_foov = MP4_BoxGet( &p_demux->box_root, "/foov" );
208
209         if( !p_foov )
210         {
211             msg_Err( p_input, "MP4 plugin discarded (no moov box)" );
212             MP4End( p_input );
213             return( VLC_EGENERIC );
214         }
215         /* we have a free box as a moov, rename it */
216         p_foov->i_type = FOURCC_moov;
217     }
218
219     if( ( p_rmra = MP4_BoxGet( &p_demux->box_root,  "/moov/rmra" ) ) )
220     {
221         playlist_t *p_playlist;
222         int        i_count = MP4_BoxCount( p_rmra, "rmda" );
223         int        i;
224
225         msg_Dbg( p_input, "detected playlist mov file (%d ref)", i_count );
226
227         p_playlist =
228             (playlist_t *)vlc_object_find( p_input,
229                                            VLC_OBJECT_PLAYLIST,
230                                            FIND_ANYWHERE );
231         if( p_playlist )
232         {
233             //p_playlist->pp_items[p_playlist->i_index]->b_autodeletion = VLC_TRUE;
234             for( i = 0; i < i_count; i++ )
235             {
236                 MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
237                 char      *psz_ref;
238                 uint32_t  i_ref_type;
239
240                 if( !p_rdrf || !( psz_ref = p_rdrf->data.p_rdrf->psz_ref ) )
241                 {
242                     continue;
243                 }
244                 i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
245
246                 msg_Dbg( p_input, "new ref=`%s' type=%4.4s",
247                          psz_ref, (char*)&i_ref_type );
248
249                 if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
250                 {
251                     if( strstr( psz_ref, "qt5gateQT" ) )
252                     {
253                         msg_Dbg( p_input, "ignoring pseudo ref =`%s'", psz_ref );
254                         continue;
255                     }
256                     if( !strncmp( psz_ref, "http://", 7 ) ||
257                         !strncmp( psz_ref, "rtsp://", 7 ) )
258                     {
259                         msg_Dbg( p_input, "adding ref = `%s'", psz_ref );
260                         playlist_Add( p_playlist, psz_ref, PLAYLIST_APPEND, PLAYLIST_END );
261                     }
262                     else
263                     {
264                         /* msg dbg relative ? */
265                         char *psz_absolute = alloca( strlen( p_input->psz_source ) + strlen( psz_ref ) + 1);
266                         char *end = strrchr( p_input->psz_source, '/' );
267
268                         if( end )
269                         {
270                             int i_len = end + 1 - p_input->psz_source;
271
272                             strncpy( psz_absolute, p_input->psz_source, i_len);
273                             psz_absolute[i_len] = '\0';
274                         }
275                         else
276                         {
277                             strcpy( psz_absolute, "" );
278                         }
279                         strcat( psz_absolute, psz_ref );
280                         msg_Dbg( p_input, "adding ref = `%s'", psz_absolute );
281                         playlist_Add( p_playlist, psz_absolute, PLAYLIST_APPEND, PLAYLIST_END );
282                     }
283                 }
284                 else
285                 {
286                     msg_Err( p_input, "unknown ref type=%4.4s FIXME (send a bug report)", (char*)&p_rdrf->data.p_rdrf->i_ref_type );
287                 }
288             }
289             vlc_object_release( p_playlist );
290         }
291         else
292         {
293             msg_Err( p_input, "can't find playlist" );
294         }
295     }
296
297     if( !(p_mvhd = MP4_BoxGet( &p_demux->box_root, "/moov/mvhd" ) ) )
298     {
299         if( !p_rmra )
300         {
301             msg_Err( p_input, "cannot find /moov/mvhd" );
302             MP4End( p_input );
303             return VLC_EGENERIC;
304         }
305         else
306         {
307             msg_Warn( p_input, "cannot find /moov/mvhd (pure ref file)" );
308             p_input->pf_demux = MP4DemuxRef;
309             return VLC_SUCCESS;
310         }
311     }
312     else
313     {
314         p_demux->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
315         p_demux->i_duration = p_mvhd->data.p_mvhd->i_duration;
316     }
317
318     if( !( p_demux->i_tracks =
319                 MP4_BoxCount( &p_demux->box_root, "/moov/trak" ) ) )
320     {
321         msg_Err( p_input, "cannot find any /moov/trak" );
322         MP4End( p_input );
323         return( VLC_EGENERIC );
324     }
325     msg_Dbg( p_input, "find %d track%c",
326                         p_demux->i_tracks,
327                         p_demux->i_tracks ? 's':' ' );
328
329     /*  create one program */
330     vlc_mutex_lock( &p_input->stream.stream_lock );
331     if( input_InitStream( p_input, 0 ) == -1)
332     {
333         vlc_mutex_unlock( &p_input->stream.stream_lock );
334         msg_Err( p_input, "cannot init stream" );
335         MP4End( p_input );
336         return( VLC_EGENERIC );
337     }
338     /* Needed to create program _before_ MP4_TrackCreate */
339     if( input_AddProgram( p_input, 0, 0) == NULL )
340     {
341         vlc_mutex_unlock( &p_input->stream.stream_lock );
342         msg_Err( p_input, "cannot add program" );
343         MP4End( p_input );
344         return( VLC_EGENERIC );
345     }
346     p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
347     /* XXX beurk and beurk, see MP4Demux and MP4Seek */
348     if( p_demux->i_duration/p_demux->i_timescale > 0 )
349     {
350         p_input->stream.i_mux_rate =
351             p_input->stream.p_selected_area->i_size / 50 /
352             ( p_demux->i_duration / p_demux->i_timescale );
353     }
354     else
355     {
356         p_input->stream.i_mux_rate = 0;
357     }
358     vlc_mutex_unlock( &p_input->stream.stream_lock );
359
360
361     /* allocate memory */
362     p_demux->track = calloc( p_demux->i_tracks, sizeof( track_data_mp4_t ) );
363
364     /* now process each track and extract all usefull informations */
365     for( i = 0; i < p_demux->i_tracks; i++ )
366     {
367         p_trak = MP4_BoxGet( &p_demux->box_root, "/moov/trak[%d]", i );
368         MP4_TrackCreate( p_input, &p_demux->track[i], p_trak );
369
370         if( p_demux->track[i].b_ok )
371         {
372             char *psz_cat;
373             switch( p_demux->track[i].i_cat )
374             {
375                 case( VIDEO_ES ):
376                     psz_cat = "video";
377                     break;
378                 case( AUDIO_ES ):
379                     psz_cat = "audio";
380                     break;
381                 default:
382                     psz_cat = "unknown";
383                     break;
384             }
385
386             msg_Dbg( p_input, "adding track[Id 0x%x] %s (%s) language %c%c%c",
387                             p_demux->track[i].i_track_ID,
388                             psz_cat,
389                             p_demux->track[i].b_enable ? "enable":"disable",
390                             p_demux->track[i].i_language[0],
391                             p_demux->track[i].i_language[1],
392                             p_demux->track[i].i_language[2] );
393         }
394         else
395         {
396             msg_Dbg( p_input, "ignoring track[Id 0x%x]", p_demux->track[i].i_track_ID );
397         }
398
399     }
400
401     for( i = 0, b_audio = VLC_FALSE; i < p_demux->i_tracks; i++ )
402     {
403 #define track p_demux->track[i]
404         /* start decoder for this track if enable by default*/
405         if( track.b_ok && track.b_enable &&
406             ( track.i_cat != AUDIO_ES || !b_audio ) )
407         {
408             if( !MP4_TrackSelect( p_input, &track, 0 ) )
409             {
410                 if(track.i_cat == AUDIO_ES )
411                 {
412                     b_audio = VLC_TRUE;
413                 }
414             }
415         }
416 #undef track
417     }
418
419     vlc_mutex_lock( &p_input->stream.stream_lock );
420     p_input->stream.p_selected_program->b_is_ok = 1;
421     vlc_mutex_unlock( &p_input->stream.stream_lock );
422
423     return( VLC_SUCCESS );
424 }
425
426 /*****************************************************************************
427  * MP4Demux: read packet and send them to decoders
428  *****************************************************************************
429  * TODO check for newly selected track (ie audio upt to now )
430  *****************************************************************************/
431 static int MP4Demux( input_thread_t *p_input )
432 {
433     demux_sys_t *p_demux = p_input->p_demux_data;
434     unsigned int i_track;
435
436
437     unsigned int i_track_selected;
438     vlc_bool_t   b_video;
439     vlc_bool_t   b_play_audio;
440
441     /* check for newly selected/unselected track */
442     for( i_track = 0, i_track_selected = 0, b_video = VLC_FALSE;
443             i_track <  p_demux->i_tracks; i_track++ )
444     {
445 #define track   p_demux->track[i_track]
446         if( track.b_selected && track.i_sample >= track.i_sample_count )
447         {
448             msg_Warn( p_input, "track[0x%x] will be disabled", track.i_track_ID );
449             MP4_TrackUnselect( p_input, &track );
450         }
451         else if( track.b_ok )
452         {
453             if( track.b_selected && track.p_es->p_decoder_fifo == NULL )
454             {
455                 MP4_TrackUnselect( p_input, &track );
456             }
457             else if( !track.b_selected && track.p_es->p_decoder_fifo != NULL )
458             {
459                 MP4_TrackSelect( p_input, &track, MP4_GetMoviePTS( p_demux ) );
460             }
461
462             if( track.b_selected )
463             {
464                 i_track_selected++;
465
466                 if( track.i_cat == VIDEO_ES )
467                 {
468                     b_video = VLC_TRUE;
469                 }
470             }
471         }
472 #undef  track
473     }
474
475     if( i_track_selected <= 0 )
476     {
477         msg_Warn( p_input, "no track selected, exiting..." );
478         return( 0 );
479     }
480
481
482     /* XXX beurk, beuRK and BEURK,
483        but only way I've found to detect seek from interface */
484     if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
485     {
486         mtime_t i_date;
487
488         /* first wait for empty buffer, arbitrary time FIXME */
489         msleep( DEFAULT_PTS_DELAY );
490         /* *** calculate new date *** */
491
492         i_date = (mtime_t)1000000 *
493                  (mtime_t)p_demux->i_duration /
494                  (mtime_t)p_demux->i_timescale *
495                  (mtime_t)MP4_TellAbsolute( p_input ) /
496                  (mtime_t)p_input->stream.p_selected_area->i_size;
497         MP4Seek( p_input, i_date );
498     }
499
500     /* first wait for the good time to read a packet */
501     input_ClockManageRef( p_input,
502                           p_input->stream.p_selected_program,
503                           p_demux->i_pcr );
504
505
506     /* update pcr XXX in mpeg scale so in 90000 unit/s */
507     p_demux->i_pcr = MP4_GetMoviePTS( p_demux ) * 9 / 100;
508
509
510     /* we will read 100ms for each stream so ...*/
511     p_demux->i_time += __MAX( p_demux->i_timescale / 10 , 1 );
512
513
514     /* Check if we need to send the audio data to decoder */
515     b_play_audio = !p_input->stream.control.b_mute;
516
517     for( i_track = 0; i_track < p_demux->i_tracks; i_track++ )
518     {
519 #define track p_demux->track[i_track]
520         if( !track.b_ok ||
521             !track.b_selected ||
522             MP4_GetTrackPTS( &track ) >= MP4_GetMoviePTS( p_demux ) )
523         {
524             continue;
525         }
526         while( MP4_GetTrackPTS( &track ) < MP4_GetMoviePTS( p_demux ) )
527         {
528
529             if( !b_play_audio && track.i_cat == AUDIO_ES )
530             {
531                 if( MP4_TrackNextSample( p_input, &track ) )
532                 {
533                     break;
534                 }
535             }
536             else
537             {
538                 size_t i_size;
539                 off_t i_pos;
540
541                 data_packet_t *p_data;
542                 pes_packet_t *p_pes;
543
544                 /* caculate size and position for this sample */
545                 i_size = MP4_TrackSampleSize( &track );
546
547                 i_pos  = MP4_GetTrackPos( &track );
548
549                 //msg_Dbg( p_input, "stream %d size=%6d pos=%8lld",  i_track, i_size, i_pos );
550
551                 /* go,go go ! */
552                 if( MP4_SeekAbsolute( p_input, i_pos ) )
553                 {
554                     msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", track.i_track_ID );
555                     MP4_TrackUnselect( p_input, &track );
556                     break;
557                 }
558
559
560                 /* now create a pes */
561                 if( !(p_pes = input_NewPES( p_input->p_method_data ) ) )
562                 {
563                     break;
564                 }
565                 /* and a data packet for the data */
566                 if( !(p_data = input_NewPacket( p_input->p_method_data, i_size ) ) )
567                 {
568                     input_DeletePES( p_input->p_method_data, p_pes );
569                     break;
570                 }
571                 p_data->p_payload_end = p_data->p_payload_start + i_size;
572
573                 /* initialisation of all the field */
574                 p_pes->i_dts = p_pes->i_pts = 0;
575                 p_pes->p_first = p_pes->p_last  = p_data;
576                 p_pes->i_nb_data = 1;
577                 p_pes->i_pes_size = i_size;
578                 if( i_size > 0 )
579                 {
580                     if( MP4_ReadData( p_input, p_data->p_payload_start, i_size ) )
581                     {
582                         input_DeletePES( p_input->p_method_data, p_pes );
583
584                         msg_Warn( p_input, "track[0x%x] will be disabled (eof?)", track.i_track_ID );
585                         MP4_TrackUnselect( p_input, &track );
586                         break;
587                     }
588                 }
589
590                 p_pes->i_dts =
591                     p_pes->i_pts = input_ClockGetTS( p_input,
592                                                      p_input->stream.p_selected_program,
593                                                      MP4_GetTrackPTS( &track ) * 9/100);
594
595                 if( track.p_es->p_decoder_fifo )
596                 {
597
598                     p_pes->i_rate = p_input->stream.control.i_rate;
599                     input_DecodePES( track.p_es->p_decoder_fifo, p_pes );
600                 }
601                 else
602                 {
603                     input_DeletePES( p_input->p_method_data, p_pes );
604                 }
605
606                 if( MP4_TrackNextSample( p_input, &track ) )
607                 {
608                     break;
609                 }
610             }
611         }
612 #undef track
613     }
614
615     return( 1 );
616 }
617 /*****************************************************************************
618  * MP4Seek: Got to i_date
619  ******************************************************************************/
620 static int   MP4Seek     ( input_thread_t *p_input, mtime_t i_date )
621 {
622     demux_sys_t *p_demux = p_input->p_demux_data;
623     unsigned int i_track;
624     /* First update update global time */
625     p_demux->i_time = i_date * p_demux->i_timescale / 1000000;
626     p_demux->i_pcr  = i_date* 9 / 100;
627
628     /* Now for each stream try to go to this time */
629     for( i_track = 0; i_track < p_demux->i_tracks; i_track++ )
630     {
631 #define track p_demux->track[i_track]
632         if( track.b_ok && track.b_selected )
633         {
634             MP4_TrackSeek( p_input, &track, i_date );
635         }
636 #undef  track
637     }
638     return( 1 );
639 }
640
641 /*****************************************************************************
642  * MP4End: frees unused data
643  *****************************************************************************/
644 static void __MP4End ( vlc_object_t * p_this )
645 {
646     unsigned int i_track;
647     input_thread_t *  p_input = (input_thread_t *)p_this;
648     demux_sys_t *p_demux = p_input->p_demux_data;
649
650     msg_Dbg( p_input, "freeing all memory" );
651     MP4_BoxFree( p_input, &p_demux->box_root );
652     for( i_track = 0; i_track < p_demux->i_tracks; i_track++ )
653     {
654         MP4_TrackDestroy( p_input, &p_demux->track[i_track] );
655     }
656     FREE( p_demux->track );
657
658     FREE( p_input->p_demux_data );
659 }
660
661
662 /****************************************************************************
663  * Local functions, specific to vlc
664  ****************************************************************************/
665
666 /* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
667 static int TrackCreateChunksIndex( input_thread_t *p_input,
668                                    track_data_mp4_t *p_demux_track )
669 {
670     MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
671     MP4_Box_t *p_stsc;
672
673     unsigned int i_chunk;
674     unsigned int i_index, i_last;
675
676     if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
677           !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
678         ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
679     {
680         return( VLC_EGENERIC );
681     }
682
683     p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
684     if( !p_demux_track->i_chunk_count )
685     {
686         msg_Warn( p_input, "no chunk defined" );
687         return( VLC_EGENERIC );
688     }
689     p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
690                                    sizeof( chunk_data_mp4_t ) );
691
692     /* first we read chunk offset */
693     for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
694     {
695         p_demux_track->chunk[i_chunk].i_offset =
696                 p_co64->data.p_co64->i_chunk_offset[i_chunk];
697     }
698
699     /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
700         to be used for the sample XXX begin to 1
701         We construct it begining at the end */
702     i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
703     i_index = p_stsc->data.p_stsc->i_entry_count;
704     if( !i_index )
705     {
706         msg_Warn( p_input, "cannot read chunk table or table empty" );
707         return( VLC_EGENERIC );
708     }
709
710     while( i_index )
711     {
712         i_index--;
713         for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
714                 i_chunk < i_last; i_chunk++ )
715         {
716             p_demux_track->chunk[i_chunk].i_sample_description_index =
717                     p_stsc->data.p_stsc->i_sample_description_index[i_index];
718             p_demux_track->chunk[i_chunk].i_sample_count =
719                     p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
720         }
721         i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
722     }
723
724     p_demux_track->chunk[0].i_sample_first = 0;
725     for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
726     {
727         p_demux_track->chunk[i_chunk].i_sample_first =
728             p_demux_track->chunk[i_chunk-1].i_sample_first +
729                 p_demux_track->chunk[i_chunk-1].i_sample_count;
730     }
731
732     msg_Dbg( p_input,
733              "track[Id 0x%x] read %d chunk",
734              p_demux_track->i_track_ID,
735             p_demux_track->i_chunk_count );
736
737     return( VLC_SUCCESS );
738 }
739 static int TrackCreateSamplesIndex( input_thread_t *p_input,
740                                     track_data_mp4_t *p_demux_track )
741 {
742     MP4_Box_t *p_stts; /* makes mapping between sample and decoding time,
743                           ctts make same mapping but for composition time,
744                           not yet used and probably not usefull */
745     MP4_Box_t *p_stsz; /* gives sample size of each samples, there is also stz2
746                           that uses a compressed form FIXME make them in libmp4
747                           as a unique type */
748     /* TODO use also stss and stsh table for seeking */
749     /* FIXME use edit table */
750     int64_t i_sample;
751     int64_t i_chunk;
752
753     int64_t i_index;
754     int64_t i_index_sample_used;
755
756     int64_t i_last_dts;
757
758     p_stts = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
759     p_stsz = MP4_BoxGet( p_demux_track->p_stbl, "stsz" ); /* FIXME and stz2 */
760
761     if( ( !p_stts )||( !p_stsz ) )
762     {
763         msg_Warn( p_input, "cannot read sample table" );
764         return( VLC_EGENERIC );
765     }
766
767     p_demux_track->i_sample_count = p_stsz->data.p_stsz->i_sample_count;
768
769
770     /* for sample size, there are 2 case */
771     if( p_stsz->data.p_stsz->i_sample_size )
772     {
773         /* 1: all sample have the same size, so no need to construct a table */
774         p_demux_track->i_sample_size = p_stsz->data.p_stsz->i_sample_size;
775         p_demux_track->p_sample_size = NULL;
776     }
777     else
778     {
779         /* 2: each sample can have a different size */
780         p_demux_track->i_sample_size = 0;
781         p_demux_track->p_sample_size =
782             calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
783
784         for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
785         {
786             p_demux_track->p_sample_size[i_sample] =
787                     p_stsz->data.p_stsz->i_entry_size[i_sample];
788         }
789     }
790     /* we have extract all information from stsz,
791         now use stts */
792
793     /* if we don't want to waste too much memory, we can't expand
794        the box !, so each chunk will contain an "extract" of this table
795        for fast research */
796
797     i_last_dts = 0;
798     i_index = 0; i_index_sample_used =0;
799
800     /* create and init last data for each chunk */
801     for(i_chunk = 0 ; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
802     {
803
804         int64_t i_entry, i_sample_count, i;
805         /* save last dts */
806         p_demux_track->chunk[i_chunk].i_first_dts = i_last_dts;
807     /* count how many entries needed for this chunk
808        for p_sample_delta_dts and p_sample_count_dts */
809
810         i_sample_count = p_demux_track->chunk[i_chunk].i_sample_count;
811
812         i_entry = 0;
813         while( i_sample_count > 0 )
814         {
815             i_sample_count -= p_stts->data.p_stts->i_sample_count[i_index+i_entry];
816             if( i_entry == 0 )
817             {
818                 i_sample_count += i_index_sample_used; /* don't count already used sample
819                                                    int this entry */
820             }
821             i_entry++;
822         }
823
824         /* allocate them */
825         p_demux_track->chunk[i_chunk].p_sample_count_dts =
826             calloc( i_entry, sizeof( uint32_t ) );
827         p_demux_track->chunk[i_chunk].p_sample_delta_dts =
828             calloc( i_entry, sizeof( uint32_t ) );
829
830         /* now copy */
831         i_sample_count = p_demux_track->chunk[i_chunk].i_sample_count;
832         for( i = 0; i < i_entry; i++ )
833         {
834             int64_t i_used;
835             int64_t i_rest;
836
837             i_rest = p_stts->data.p_stts->i_sample_count[i_index] - i_index_sample_used;
838
839             i_used = __MIN( i_rest, i_sample_count );
840
841             i_index_sample_used += i_used;
842             i_sample_count -= i_used;
843
844             p_demux_track->chunk[i_chunk].p_sample_count_dts[i] = i_used;
845
846             p_demux_track->chunk[i_chunk].p_sample_delta_dts[i] =
847                         p_stts->data.p_stts->i_sample_delta[i_index];
848
849             i_last_dts += i_used *
850                     p_demux_track->chunk[i_chunk].p_sample_delta_dts[i];
851
852             if( i_index_sample_used >=
853                              p_stts->data.p_stts->i_sample_count[i_index] )
854             {
855
856                 i_index++;
857                 i_index_sample_used = 0;
858             }
859         }
860
861     }
862
863     msg_Dbg( p_input,
864              "track[Id 0x%x] read %d samples length:"I64Fd"s",
865              p_demux_track->i_track_ID,
866              p_demux_track->i_sample_count,
867              i_last_dts / p_demux_track->i_timescale );
868
869     return( VLC_SUCCESS );
870 }
871
872 /*
873  * TrackCreateES:
874  *  Create ES and PES to init decoder if needed, for a track starting at i_chunk
875  */
876 static int  TrackCreateES   ( input_thread_t   *p_input,
877                               track_data_mp4_t *p_track,
878                               unsigned int     i_chunk,
879                               es_descriptor_t  **pp_es,
880                               pes_packet_t     **pp_pes )
881 {
882     MP4_Box_t *  p_sample;
883     unsigned int i;
884     char psz_lang[4];
885
886     unsigned int i_decoder_specific_info_len;
887     uint8_t *    p_decoder_specific_info;
888
889     es_descriptor_t *p_es;
890     pes_packet_t    *p_pes_init;
891
892     uint8_t             *p_init;
893     BITMAPINFOHEADER    *p_bih;
894     WAVEFORMATEX        *p_wf;
895
896     MP4_Box_t   *p_esds;
897
898     if( !p_track->chunk[i_chunk].i_sample_description_index )
899     {
900         msg_Warn( p_input,
901                   "invalid SampleEntry index (track[Id 0x%x])",
902                   p_track->i_track_ID );
903         return( VLC_EGENERIC );
904     }
905
906     p_sample = MP4_BoxGet(  p_track->p_stsd,
907                             "[%d]",
908                 p_track->chunk[i_chunk].i_sample_description_index - 1 );
909
910     if( !p_sample || !p_sample->data.p_data )
911     {
912         msg_Warn( p_input,
913                   "cannot find SampleEntry (track[Id 0x%x])",
914                   p_track->i_track_ID );
915         return( VLC_EGENERIC );
916     }
917
918     p_track->p_sample = p_sample;
919
920     if( p_track->i_sample_size == 1 )
921     {
922         MP4_Box_data_sample_soun_t *p_soun;
923
924         p_soun = p_sample->data.p_sample_soun;
925
926         if( p_soun->i_qt_version == 0 )
927         {
928             switch( p_sample->i_type )
929             {
930                 case VLC_FOURCC( 'i', 'm', 'a', '4' ):
931                     p_soun->i_qt_version = 1;
932                     p_soun->i_sample_per_packet = 64;
933                     p_soun->i_bytes_per_packet  = 34;
934                     p_soun->i_bytes_per_frame   = 34 * p_soun->i_channelcount;
935                     p_soun->i_bytes_per_sample  = 2;
936                     break;
937                 case VLC_FOURCC( 'M', 'A', 'C', '3' ):
938                     p_soun->i_qt_version = 1;
939                     p_soun->i_sample_per_packet = 6;
940                     p_soun->i_bytes_per_packet  = 2;
941                     p_soun->i_bytes_per_frame   = 2 * p_soun->i_channelcount;
942                     p_soun->i_bytes_per_sample  = 2;
943                     break;
944                 case VLC_FOURCC( 'M', 'A', 'C', '6' ):
945                     p_soun->i_qt_version = 1;
946                     p_soun->i_sample_per_packet = 12;
947                     p_soun->i_bytes_per_packet  = 2;
948                     p_soun->i_bytes_per_frame   = 2 * p_soun->i_channelcount;
949                     p_soun->i_bytes_per_sample  = 2;
950                     break;
951                 default:
952                     break;
953             }
954         }
955     }
956
957     /* Initialise ES, first language as description */
958     for( i = 0; i < 3; i++ )
959     {
960         psz_lang[i] = p_track->i_language[i];
961     }
962     psz_lang[3] = '\0';
963
964     vlc_mutex_lock( &p_input->stream.stream_lock );
965     p_es = input_AddES( p_input, p_input->stream.p_selected_program,
966                         p_track->i_track_ID, p_track->i_cat, psz_lang, 0 );
967     vlc_mutex_unlock( &p_input->stream.stream_lock );
968
969     p_es->i_stream_id = p_track->i_track_ID;
970
971     /* It's a little ugly but .. there are special cases */
972     switch( p_sample->i_type )
973     {
974         case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
975         case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
976             p_es->i_fourcc = VLC_FOURCC( 'm', 'p', 'g', 'a' );
977             break;
978         case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
979             p_es->i_fourcc = VLC_FOURCC( 'a', 'r', 'a', 'w' );
980             break;
981         case( VLC_FOURCC( 's', '2', '6', '3' ) ):
982             p_es->i_fourcc = VLC_FOURCC( 'h', '2', '6', '3' );
983             break;
984         default:
985             p_es->i_fourcc = p_sample->i_type;
986             break;
987     }
988
989     i_decoder_specific_info_len = 0;
990     p_decoder_specific_info = NULL;
991     p_pes_init = NULL;
992
993     /* now see if esds is present and if so create a data packet
994         with decoder_specific_info  */
995 #define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
996     if( ( p_esds = MP4_BoxGet( p_sample, "esds" ) )&&
997         ( p_esds->data.p_esds )&&
998         ( p_decconfig ) )
999     {
1000         /* First update information based on i_objectTypeIndication */
1001         switch( p_decconfig->i_objectTypeIndication )
1002         {
1003             case( 0x20 ): /* MPEG4 VIDEO */
1004                 p_es->i_fourcc = VLC_FOURCC( 'm','p','4','v' );
1005                 break;
1006             case( 0x40):
1007                 p_es->i_fourcc = VLC_FOURCC( 'm','p','4','a' );
1008                 break;
1009             case( 0x60):
1010             case( 0x61):
1011             case( 0x62):
1012             case( 0x63):
1013             case( 0x64):
1014             case( 0x65): /* MPEG2 video */
1015                 p_es->i_fourcc = VLC_FOURCC( 'm','p','g','v' );
1016                 break;
1017             /* Theses are MPEG2-AAC */
1018             case( 0x66): /* main profile */
1019             case( 0x67): /* Low complexity profile */
1020             case( 0x68): /* Scaleable Sampling rate profile */
1021                 p_es->i_fourcc = VLC_FOURCC( 'm','p','4','a' );
1022                 break;
1023             /* true MPEG 2 audio */
1024             case( 0x69):
1025                 p_es->i_fourcc = VLC_FOURCC( 'm','p','g','a' );
1026                 break;
1027             case( 0x6a): /* MPEG1 video */
1028                 p_es->i_fourcc = VLC_FOURCC( 'm','p','g','v' );
1029                 break;
1030             case( 0x6b): /* MPEG1 audio */
1031                 p_es->i_fourcc = VLC_FOURCC( 'm','p','g','a' );
1032                 break;
1033             case( 0x6c ): /* jpeg */
1034                 p_es->i_fourcc = VLC_FOURCC( 'j','p','e','g' );
1035                 break;
1036             default:
1037                 /* Unknown entry, but don't touch i_fourcc */
1038                 msg_Warn( p_input,
1039                           "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
1040                           p_decconfig->i_objectTypeIndication,
1041                           p_track->i_track_ID );
1042                 break;
1043         }
1044         i_decoder_specific_info_len =
1045                 p_decconfig->i_decoder_specific_info_len;
1046         p_decoder_specific_info =
1047                 p_decconfig->p_decoder_specific_info;
1048     }
1049     else
1050     {
1051         switch( p_sample->i_type )
1052         {
1053             /* qt decoder, send the complete chunk */
1054             case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
1055             case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
1056                 i_decoder_specific_info_len = p_sample->data.p_sample_vide->i_qt_image_description;
1057                 p_decoder_specific_info     = p_sample->data.p_sample_vide->p_qt_image_description;
1058                 break;
1059             case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
1060             case VLC_FOURCC( 'Q', 'D', 'M', '2' ):
1061             case VLC_FOURCC( 'Q', 'c', 'l', 'p' ):
1062                 i_decoder_specific_info_len = p_sample->data.p_sample_soun->i_qt_description;
1063                 p_decoder_specific_info     = p_sample->data.p_sample_soun->p_qt_description;
1064                 break;
1065             default:
1066                 break;
1067         }
1068     }
1069
1070 #undef p_decconfig
1071
1072     /* some last initialisation */
1073     /* XXX I create a bitmapinfoheader_t or
1074        waveformatex_t for each stream, up to now it's the best thing
1075        I've found but it could exist a better solution :) as something
1076        like adding some new fields in p_es ...
1077
1078        XXX I don't set all values, only thoses that are interesting or known
1079         --> bitmapinfoheader_t : width and height
1080         --> waveformatex_t : channels, samplerate, bitspersample
1081         and at the end I add p_decoder_specific_info
1082
1083         TODO set more values
1084
1085      */
1086
1087     switch( p_track->i_cat )
1088     {
1089         case( VIDEO_ES ):
1090             /* now create a bitmapinfoheader_t for decoder and
1091                add information found in p_esds */
1092             /* XXX XXX + 16 are for avoid segfault when ffmpeg access beyong the data */
1093             p_init = malloc( sizeof( BITMAPINFOHEADER ) + i_decoder_specific_info_len + 16 );
1094             p_bih = (BITMAPINFOHEADER*)p_init;
1095
1096             p_bih->biSize     = sizeof( BITMAPINFOHEADER ) + i_decoder_specific_info_len;
1097             p_bih->biWidth    = p_sample->data.p_sample_vide->i_width;
1098             p_bih->biHeight   = p_sample->data.p_sample_vide->i_height;
1099             p_bih->biPlanes   = 1;      // FIXME
1100             p_bih->biBitCount = 0;      // FIXME
1101             p_bih->biCompression   = 0; // FIXME
1102             p_bih->biSizeImage     = 0; // FIXME
1103             p_bih->biXPelsPerMeter = 0; // FIXME
1104             p_bih->biYPelsPerMeter = 0; // FIXME
1105             p_bih->biClrUsed       = 0; // FIXME
1106             p_bih->biClrImportant  = 0; // FIXME
1107
1108             if( p_bih->biWidth == 0 )
1109             {
1110                 // fall on display size
1111                 p_bih->biWidth = p_track->i_width;
1112             }
1113             if( p_bih->biHeight == 0 )
1114             {
1115                 // fall on display size
1116                 p_bih->biHeight = p_track->i_height;
1117             }
1118
1119             if( i_decoder_specific_info_len )
1120             {
1121                 data_packet_t   *p_data;
1122
1123                 memcpy( p_init + sizeof( BITMAPINFOHEADER ),
1124                         p_decoder_specific_info,
1125                         i_decoder_specific_info_len);
1126
1127                 /* If stream is mpeg4 video we send specific_info,
1128                    as it's needed to decode it (vol) */
1129                 switch( p_es->i_fourcc )
1130                 {
1131                     case VLC_FOURCC( 'm','p','4','v' ):
1132                     case VLC_FOURCC( 'D','I','V','X' ):
1133                     case VLC_FOURCC( 'd','i','v','x' ):
1134                         p_pes_init = input_NewPES( p_input->p_method_data );
1135                         p_data = input_NewPacket( p_input->p_method_data,
1136                                                   i_decoder_specific_info_len);
1137                         p_data->p_payload_end = p_data->p_payload_start + i_decoder_specific_info_len;
1138
1139                         memcpy( p_data->p_payload_start,
1140                                 p_decoder_specific_info,
1141                                 i_decoder_specific_info_len );
1142                         p_pes_init->i_dts = p_pes_init->i_pts = 0;
1143                         p_pes_init->p_first = p_pes_init->p_last = p_data;
1144                         p_pes_init->i_nb_data = 1;
1145                         p_pes_init->i_pes_size = i_decoder_specific_info_len;
1146                         break;
1147                     default:
1148                         break;
1149                 }
1150
1151             }
1152             break;
1153
1154         case( AUDIO_ES ):
1155             p_init = malloc( sizeof( WAVEFORMATEX ) + i_decoder_specific_info_len + 16 );
1156             p_wf = (WAVEFORMATEX*)p_init;
1157
1158             p_wf->wFormatTag = 1;
1159             p_wf->nChannels = p_sample->data.p_sample_soun->i_channelcount;
1160             p_wf->nSamplesPerSec = p_sample->data.p_sample_soun->i_sampleratehi;
1161             p_wf->nAvgBytesPerSec = p_sample->data.p_sample_soun->i_channelcount *
1162                                     p_sample->data.p_sample_soun->i_sampleratehi *
1163                                     p_sample->data.p_sample_soun->i_samplesize / 8;
1164             p_wf->nBlockAlign = 0;
1165             p_wf->wBitsPerSample = p_sample->data.p_sample_soun->i_samplesize;
1166             p_wf->cbSize = i_decoder_specific_info_len;
1167
1168             if( i_decoder_specific_info_len )
1169             {
1170                 memcpy( p_init + sizeof( WAVEFORMATEX ),
1171                         p_decoder_specific_info,
1172                         i_decoder_specific_info_len);
1173             }
1174
1175             break;
1176
1177         default:
1178             p_init = NULL;
1179             break;
1180     }
1181     if( p_es->i_cat == AUDIO_ES )
1182     {
1183         p_es->p_bitmapinfoheader = NULL;
1184         p_es->p_waveformatex     = (void*)p_init;
1185     }
1186     else if( p_es->i_cat == VIDEO_ES )
1187     {
1188         p_es->p_bitmapinfoheader = (void*)p_init;
1189         p_es->p_waveformatex     = NULL;
1190     }
1191
1192     *pp_es = p_es;
1193     *pp_pes = p_pes_init;
1194     return( VLC_SUCCESS );
1195 }
1196
1197 /* given a time it return sample/chunk */
1198 static int  TrackTimeToSampleChunk( input_thread_t *p_input,
1199                                     track_data_mp4_t *p_track,
1200                                     uint64_t i_start,
1201                                     uint32_t *pi_chunk,
1202                                     uint32_t *pi_sample )
1203 {
1204     MP4_Box_t    *p_stss;
1205     uint64_t     i_dts;
1206     unsigned int i_sample;
1207     unsigned int i_chunk;
1208     int          i_index;
1209
1210     /* convert absolute time to in timescale unit */
1211     i_start = i_start * (mtime_t)p_track->i_timescale / (mtime_t)1000000;
1212
1213     /* FIXME see if it's needed to check p_track->i_chunk_count */
1214     if( !p_track->b_ok || p_track->i_chunk_count == 0 )
1215     {
1216         return( VLC_EGENERIC );
1217     }
1218
1219     /* we start from sample 0/chunk 0, hope it won't take too much time */
1220     /* *** find good chunk *** */
1221     for( i_chunk = 0; ; i_chunk++ )
1222     {
1223         if( i_chunk + 1 >= p_track->i_chunk_count )
1224         {
1225             /* at the end and can't check if i_start in this chunk,
1226                it will be check while searching i_sample */
1227             i_chunk = p_track->i_chunk_count - 1;
1228             break;
1229         }
1230
1231         if( i_start >= p_track->chunk[i_chunk].i_first_dts &&
1232             i_start <  p_track->chunk[i_chunk + 1].i_first_dts )
1233         {
1234             break;
1235         }
1236     }
1237
1238     /* *** find sample in the chunk *** */
1239     i_sample = p_track->chunk[i_chunk].i_sample_first;
1240     i_dts    = p_track->chunk[i_chunk].i_first_dts;
1241     for( i_index = 0; i_sample < p_track->chunk[i_chunk].i_sample_count; )
1242     {
1243         if( i_dts +
1244             p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1245             p_track->chunk[i_chunk].p_sample_delta_dts[i_index] < i_start )
1246         {
1247             i_dts    +=
1248                 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1249                 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1250
1251             i_sample += p_track->chunk[i_chunk].p_sample_count_dts[i_index];
1252             i_index++;
1253         }
1254         else
1255         {
1256             if( p_track->chunk[i_chunk].p_sample_delta_dts[i_index] <= 0 )
1257             {
1258                 break;
1259             }
1260             i_sample += ( i_start - i_dts ) / p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1261             break;
1262         }
1263     }
1264
1265     if( i_sample >= p_track->i_sample_count )
1266     {
1267         msg_Warn( p_input,
1268                   "track[Id 0x%x] will be disabled (seeking too far) chunk=%d sample=%d",
1269                   p_track->i_track_ID, i_chunk, i_sample );
1270         return( VLC_EGENERIC );
1271     }
1272
1273
1274     /* *** Try to find nearest sync points *** */
1275     if( ( p_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
1276     {
1277         unsigned int i_index;
1278         msg_Dbg( p_input,
1279                     "track[Id 0x%x] using Sync Sample Box (stss)",
1280                     p_track->i_track_ID );
1281         for( i_index = 0; i_index < p_stss->data.p_stss->i_entry_count; i_index++ )
1282         {
1283             if( p_stss->data.p_stss->i_sample_number[i_index] >= i_sample )
1284             {
1285                 if( i_index > 0 )
1286                 {
1287                     msg_Dbg( p_input, "stts gives %d --> %d (sample number)",
1288                             i_sample,
1289                             p_stss->data.p_stss->i_sample_number[i_index-1] );
1290                     i_sample = p_stss->data.p_stss->i_sample_number[i_index-1];
1291                     /* new i_sample is less than old so i_chunk can only decreased */
1292                     while( i_chunk > 0 &&
1293                             i_sample < p_track->chunk[i_chunk].i_sample_first )
1294                     {
1295                         i_chunk--;
1296                     }
1297                 }
1298                 else
1299                 {
1300                     msg_Dbg( p_input, "stts gives %d --> %d (sample number)",
1301                             i_sample,
1302                             p_stss->data.p_stss->i_sample_number[i_index] );
1303                     i_sample = p_stss->data.p_stss->i_sample_number[i_index];
1304                     /* new i_sample is more than old so i_chunk can only increased */
1305                     while( i_chunk < p_track->i_chunk_count - 1 &&
1306                            i_sample >= p_track->chunk[i_chunk].i_sample_first +
1307                                                 p_track->chunk[i_chunk].i_sample_count )
1308                     {
1309                         i_chunk++;
1310                     }
1311                 }
1312                 break;
1313             }
1314         }
1315     }
1316     else
1317     {
1318         msg_Dbg( p_input,
1319                     "track[Id 0x%x] does not provide Sync Sample Box (stss)",
1320                     p_track->i_track_ID );
1321     }
1322
1323     if( pi_chunk  ) *pi_chunk  = i_chunk;
1324     if( pi_sample ) *pi_sample = i_sample;
1325     return( VLC_SUCCESS );
1326 }
1327
1328 static int  TrackGotoChunkSample( input_thread_t   *p_input,
1329                                   track_data_mp4_t *p_track,
1330                                   unsigned int     i_chunk,
1331                                   unsigned int     i_sample )
1332 {
1333     /* now see if actual es is ok */
1334     if( p_track->i_chunk < 0 ||
1335         p_track->i_chunk >= p_track->i_chunk_count ||
1336         p_track->chunk[p_track->i_chunk].i_sample_description_index !=
1337             p_track->chunk[i_chunk].i_sample_description_index )
1338     {
1339         msg_Warn( p_input, "Recreate ES" );
1340
1341         /* no :( recreate es */
1342         vlc_mutex_lock( &p_input->stream.stream_lock );
1343         input_DelES( p_input, p_track->p_es );
1344         vlc_mutex_unlock( &p_input->stream.stream_lock );
1345
1346         if( p_track->p_pes_init )
1347         {
1348             input_DeletePES( p_input->p_method_data, p_track->p_pes_init );
1349         }
1350
1351         if( TrackCreateES( p_input,
1352                            p_track, i_chunk,
1353                            &p_track->p_es,
1354                            &p_track->p_pes_init ) )
1355         {
1356             msg_Err( p_input, "cannot create es for track[Id 0x%x]",
1357                      p_track->i_track_ID );
1358
1359             p_track->b_ok       = VLC_FALSE;
1360             p_track->b_selected = VLC_FALSE;
1361             return( VLC_EGENERIC );
1362         }
1363     }
1364
1365     /* select again the new decoder */
1366     if( p_track->b_selected && p_track->p_es && p_track->p_es->p_decoder_fifo == NULL )
1367     {
1368         vlc_mutex_lock( &p_input->stream.stream_lock );
1369         input_SelectES( p_input, p_track->p_es );
1370         vlc_mutex_unlock( &p_input->stream.stream_lock );
1371
1372         if( p_track->p_es->p_decoder_fifo )
1373         {
1374             if( p_track->p_pes_init != NULL )
1375             {
1376                 p_track->p_pes_init->i_rate = p_input->stream.control.i_rate;
1377
1378                 input_DecodePES( p_track->p_es->p_decoder_fifo,
1379                                  p_track->p_pes_init );
1380                 p_track->p_pes_init = NULL;
1381             }
1382             p_track->b_selected = VLC_TRUE;
1383         }
1384         else
1385         {
1386             msg_Dbg( p_input, "Argg cannot select this stream" );
1387             if( p_track->p_pes_init != NULL )
1388             {
1389                 input_DeletePES( p_input->p_method_data, p_track->p_pes_init );
1390                 p_track->p_pes_init = NULL;
1391             }
1392             p_track->b_selected = VLC_FALSE;
1393         }
1394     }
1395
1396     p_track->i_chunk    = i_chunk;
1397     p_track->i_sample   = i_sample;
1398
1399     return( p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC );
1400 }
1401
1402 /****************************************************************************
1403  * MP4_TrackCreate:
1404  ****************************************************************************
1405  * Parse track information and create all needed data to run a track
1406  * If it succeed b_ok is set to 1 else to 0
1407  ****************************************************************************/
1408 static void MP4_TrackCreate( input_thread_t *p_input,
1409                              track_data_mp4_t *p_track,
1410                              MP4_Box_t  * p_box_trak )
1411 {
1412     unsigned int i;
1413
1414     MP4_Box_t *p_tkhd = MP4_BoxGet( p_box_trak, "tkhd" );
1415     MP4_Box_t *p_tref = MP4_BoxGet( p_box_trak, "tref" );
1416     MP4_Box_t *p_elst;
1417
1418     MP4_Box_t *p_mdhd;
1419     MP4_Box_t *p_hdlr;
1420
1421     MP4_Box_t *p_vmhd;
1422     MP4_Box_t *p_smhd;
1423
1424     /* hint track unsuported */
1425
1426     /* set default value (-> track unusable) */
1427     p_track->b_ok       = VLC_FALSE;
1428     p_track->b_enable   = VLC_FALSE;
1429     p_track->b_selected = VLC_FALSE;
1430
1431     p_track->i_cat = UNKNOWN_ES;
1432
1433     if( !p_tkhd )
1434     {
1435         return;
1436     }
1437
1438     /* do we launch this track by default ? */
1439     p_track->b_enable =
1440         ( ( p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED ) != 0 );
1441
1442     p_track->i_track_ID = p_tkhd->data.p_tkhd->i_track_ID;
1443     p_track->i_width = p_tkhd->data.p_tkhd->i_width / 65536;
1444     p_track->i_height = p_tkhd->data.p_tkhd->i_height / 65536;
1445
1446     if( ( p_elst = MP4_BoxGet( p_box_trak, "edts/elst" ) ) )
1447     {
1448 /*        msg_Warn( p_input, "unhandled box: edts --> FIXME" ); */
1449     }
1450
1451     if( p_tref )
1452     {
1453 /*        msg_Warn( p_input, "unhandled box: tref --> FIXME" ); */
1454     }
1455
1456     p_mdhd = MP4_BoxGet( p_box_trak, "mdia/mdhd" );
1457     p_hdlr = MP4_BoxGet( p_box_trak, "mdia/hdlr" );
1458
1459     if( ( !p_mdhd )||( !p_hdlr ) )
1460     {
1461         return;
1462     }
1463
1464     p_track->i_timescale = p_mdhd->data.p_mdhd->i_timescale;
1465
1466     for( i = 0; i < 3; i++ )
1467     {
1468         p_track->i_language[i] = p_mdhd->data.p_mdhd->i_language[i];
1469     }
1470     p_mdhd->data.p_mdhd->i_language[3] = 0;
1471
1472     switch( p_hdlr->data.p_hdlr->i_handler_type )
1473     {
1474         case( FOURCC_soun ):
1475             if( !( p_smhd = MP4_BoxGet( p_box_trak, "mdia/minf/smhd" ) ) )
1476             {
1477                 return;
1478             }
1479             p_track->i_cat = AUDIO_ES;
1480             break;
1481
1482         case( FOURCC_vide ):
1483             if( !( p_vmhd = MP4_BoxGet( p_box_trak, "mdia/minf/vmhd" ) ) )
1484             {
1485                 return;
1486             }
1487             p_track->i_cat = VIDEO_ES;
1488             break;
1489
1490         default:
1491             return;
1492     }
1493 /*  TODO
1494     add support for:
1495     p_dinf = MP4_BoxGet( p_minf, "dinf" );
1496 */
1497     if( !( p_track->p_stbl = MP4_BoxGet( p_box_trak,"mdia/minf/stbl" ) ) )
1498     {
1499         return;
1500     }
1501
1502     if( !( p_track->p_stsd = MP4_BoxGet( p_box_trak,"mdia/minf/stbl/stsd") ) )
1503     {
1504         return;
1505     }
1506
1507     /* fxi i_timescale for AUDIO_ES with i_qt_version == 0 */
1508     if( p_track->i_cat == AUDIO_ES ) //&& p_track->i_sample_size == 1 )
1509     {
1510         MP4_Box_t *p_sample;
1511
1512         p_sample = MP4_BoxGet(  p_track->p_stsd, "[0]" );
1513         if( p_sample && p_sample->data.p_sample_soun)
1514         {
1515             MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1516             if( p_soun->i_qt_version == 0 && p_track->i_timescale != p_soun->i_sampleratehi )
1517             {
1518                 msg_Warn( p_input, "i_timescale != i_sampleratehi with qt_version == 0\nMaking both equal ? (report any problem)" );
1519                 p_track->i_timescale = p_soun->i_sampleratehi;
1520             }
1521         }
1522     }
1523
1524
1525     /* Create chunk  index table */
1526     if( TrackCreateChunksIndex( p_input,p_track  ) )
1527     {
1528         return; /* cannot create chunks index */
1529     }
1530
1531     /* create sample index table needed for reading and seeking */
1532     if( TrackCreateSamplesIndex( p_input, p_track ) )
1533     {
1534         return; /* cannot create samples index */
1535     }
1536
1537     p_track->i_chunk  = 0;
1538     p_track->i_sample = 0;
1539     /* now create es but does not select it */
1540     /* XXX needed else vlc won't know this track exist */
1541     if( TrackCreateES( p_input,
1542                        p_track, p_track->i_chunk,
1543                        &p_track->p_es,
1544                        &p_track->p_pes_init ) )
1545     {
1546         msg_Err( p_input, "cannot create es for track[Id 0x%x]",
1547                  p_track->i_track_ID );
1548         return;
1549     }
1550 #if 0
1551     {
1552         int i;
1553
1554         for( i = 0; i < p_track->i_chunk_count; i++ )
1555         {
1556             fprintf( stderr, "%-5d sample_count=%d pts=%lld\n", i, p_track->chunk[i].i_sample_count, p_track->chunk[i].i_first_dts );
1557
1558         }
1559     }
1560 #endif
1561     p_track->b_ok = VLC_TRUE;
1562 }
1563
1564 /****************************************************************************
1565  * MP4_TrackDestroy:
1566  ****************************************************************************
1567  * Destroy a track created by MP4_TrackCreate.
1568  ****************************************************************************/
1569 static void MP4_TrackDestroy( input_thread_t *p_input,
1570                               track_data_mp4_t *p_track )
1571 {
1572     unsigned int i_chunk;
1573
1574     p_track->b_ok = VLC_FALSE;
1575     p_track->b_enable   = VLC_FALSE;
1576     p_track->b_selected = VLC_FALSE;
1577
1578     p_track->i_cat = UNKNOWN_ES;
1579
1580     if( p_track->p_pes_init )
1581     {
1582         input_DeletePES( p_input->p_method_data, p_track->p_pes_init );
1583     }
1584
1585     for( i_chunk = 0; i_chunk < p_track->i_chunk_count; i_chunk++ )
1586     {
1587         if( p_track->chunk )
1588         {
1589            FREE(p_track->chunk[i_chunk].p_sample_count_dts);
1590            FREE(p_track->chunk[i_chunk].p_sample_delta_dts );
1591         }
1592     }
1593     FREE( p_track->chunk );
1594
1595     if( !p_track->i_sample_size )
1596     {
1597         FREE( p_track->p_sample_size );
1598     }
1599 }
1600
1601 static int  MP4_TrackSelect ( input_thread_t    *p_input,
1602                               track_data_mp4_t  *p_track,
1603                               mtime_t           i_start )
1604 {
1605     uint32_t i_chunk;
1606     uint32_t i_sample;
1607
1608     if( !p_track->b_ok )
1609     {
1610         return( VLC_EGENERIC );
1611     }
1612
1613     if( p_track->b_selected )
1614     {
1615         msg_Warn( p_input,
1616                   "track[Id 0x%x] already selected",
1617                   p_track->i_track_ID );
1618         return( VLC_SUCCESS );
1619     }
1620
1621     if( TrackTimeToSampleChunk( p_input,
1622                                 p_track, i_start,
1623                                 &i_chunk, &i_sample ) )
1624     {
1625         msg_Warn( p_input,
1626                   "cannot select track[Id 0x%x]",
1627                   p_track->i_track_ID );
1628         return( VLC_EGENERIC );
1629     }
1630
1631     p_track->b_selected = VLC_TRUE;
1632
1633     if( TrackGotoChunkSample( p_input, p_track, i_chunk, i_sample ) )
1634     {
1635         p_track->b_selected = VLC_FALSE;
1636     }
1637
1638     return( p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC );
1639 }
1640
1641 static void MP4_TrackUnselect(input_thread_t    *p_input,
1642                               track_data_mp4_t  *p_track )
1643 {
1644     if( !p_track->b_ok )
1645     {
1646         return;
1647     }
1648
1649     if( !p_track->b_selected )
1650     {
1651         msg_Warn( p_input,
1652                   "track[Id 0x%x] already unselected",
1653                   p_track->i_track_ID );
1654         return;
1655     }
1656
1657     if( p_track->p_es->p_decoder_fifo )
1658     {
1659         vlc_mutex_lock( &p_input->stream.stream_lock );
1660         input_UnselectES( p_input, p_track->p_es );
1661         vlc_mutex_unlock( &p_input->stream.stream_lock );
1662     }
1663
1664     p_track->b_selected = VLC_FALSE;
1665 }
1666
1667 static int  MP4_TrackSeek   ( input_thread_t    *p_input,
1668                               track_data_mp4_t  *p_track,
1669                               mtime_t           i_start )
1670 {
1671     uint32_t i_chunk;
1672     uint32_t i_sample;
1673
1674     if( !p_track->b_ok )
1675     {
1676         return( VLC_EGENERIC );
1677     }
1678
1679     if( TrackTimeToSampleChunk( p_input,
1680                                 p_track, i_start,
1681                                 &i_chunk, &i_sample ) )
1682     {
1683         msg_Warn( p_input,
1684                   "cannot select track[Id 0x%x]",
1685                   p_track->i_track_ID );
1686         return( VLC_EGENERIC );
1687     }
1688
1689     p_track->b_selected = VLC_TRUE;
1690
1691     TrackGotoChunkSample( p_input, p_track, i_chunk, i_sample );
1692
1693     return( p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC );
1694 }
1695
1696
1697
1698
1699
1700 /*
1701  * 3 types: for audio
1702  * 
1703  */
1704 #define QT_V0_MAX_SAMPLES    1500
1705 static int  MP4_TrackSampleSize( track_data_mp4_t   *p_track )
1706 {
1707     int i_size;
1708     MP4_Box_data_sample_soun_t *p_soun;
1709
1710     if( p_track->i_sample_size == 0 )
1711     {
1712         /* most simple case */
1713         return( p_track->p_sample_size[p_track->i_sample] );
1714     }
1715     if( p_track->i_cat != AUDIO_ES )
1716     {
1717         return( p_track->i_sample_size );
1718     }
1719
1720     if( p_track->i_sample_size != 1 )
1721     {
1722         //msg_Warn( p_input, "SampleSize != 1" );
1723         return( p_track->i_sample_size );
1724     }
1725
1726     p_soun = p_track->p_sample->data.p_sample_soun;
1727
1728     if( p_soun->i_qt_version == 1 )
1729     {
1730         i_size = p_track->chunk[p_track->i_chunk].i_sample_count / p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
1731     }
1732     else
1733     {
1734         /* FIXME */
1735         int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count -
1736                 ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first );
1737         if( i_samples > QT_V0_MAX_SAMPLES )
1738         {
1739             i_samples = QT_V0_MAX_SAMPLES;
1740         }
1741         i_size = i_samples * p_soun->i_channelcount * p_soun->i_samplesize / 8;
1742     }
1743
1744     //fprintf( stderr, "size=%d\n", i_size );
1745     return( i_size );
1746 }
1747
1748
1749 static uint64_t MP4_GetTrackPos( track_data_mp4_t *p_track )
1750 {
1751     unsigned int i_sample;
1752     uint64_t i_pos;
1753
1754
1755     i_pos = p_track->chunk[p_track->i_chunk].i_offset;
1756
1757     if( p_track->i_sample_size )
1758     {
1759         MP4_Box_data_sample_soun_t *p_soun = p_track->p_sample->data.p_sample_soun;
1760
1761         if( p_soun->i_qt_version == 0 )
1762         {
1763             i_pos += ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first ) *
1764                         p_soun->i_channelcount * p_soun->i_samplesize / 8;
1765         }
1766         else
1767         {
1768             /* we read chunk by chunk */
1769             i_pos += 0;
1770         }
1771     }
1772     else
1773     {
1774         for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
1775                 i_sample < p_track->i_sample; i_sample++ )
1776         {
1777             i_pos += p_track->p_sample_size[i_sample];
1778         }
1779
1780     }
1781     return( i_pos );
1782 }
1783
1784 static int  MP4_TrackNextSample( input_thread_t     *p_input,
1785                                  track_data_mp4_t   *p_track )
1786 {
1787
1788     if( p_track->i_cat == AUDIO_ES &&
1789         p_track->i_sample_size != 0 )
1790     {
1791         MP4_Box_data_sample_soun_t *p_soun;
1792
1793         p_soun = p_track->p_sample->data.p_sample_soun;
1794
1795         if( p_soun->i_qt_version == 1 )
1796         {
1797             /* chunk by chunk */
1798             p_track->i_sample =
1799                 p_track->chunk[p_track->i_chunk].i_sample_first +
1800                 p_track->chunk[p_track->i_chunk].i_sample_count;
1801         }
1802         else
1803         {
1804             /* FIXME */
1805             p_track->i_sample += QT_V0_MAX_SAMPLES;
1806             if( p_track->i_sample > p_track->chunk[p_track->i_chunk].i_sample_first + p_track->chunk[p_track->i_chunk].i_sample_count )
1807             {
1808                 p_track->i_sample =
1809                     p_track->chunk[p_track->i_chunk].i_sample_first +
1810                     p_track->chunk[p_track->i_chunk].i_sample_count;
1811             }
1812         }
1813     }
1814     else
1815     {
1816         p_track->i_sample++;
1817     }
1818
1819     if( p_track->i_sample >= p_track->i_sample_count )
1820     {
1821         /* we have reach end of the track so free decoder stuff */
1822         msg_Warn( p_input, "track[0x%x] will be disabled", p_track->i_track_ID );
1823         MP4_TrackUnselect( p_input, p_track );
1824         return( VLC_EGENERIC );
1825     }
1826
1827     /* Have we changed chunk ? */
1828     if( p_track->i_sample >=
1829             p_track->chunk[p_track->i_chunk].i_sample_first +
1830             p_track->chunk[p_track->i_chunk].i_sample_count )
1831     {
1832         if( TrackGotoChunkSample( p_input,
1833                                   p_track,
1834                                   p_track->i_chunk + 1,
1835                                   p_track->i_sample ) )
1836         {
1837             msg_Warn( p_input, "track[0x%x] will be disabled (cannot restart decoder)", p_track->i_track_ID );
1838             MP4_TrackUnselect( p_input, p_track );
1839             return( VLC_EGENERIC );
1840         }
1841     }
1842
1843     return( VLC_SUCCESS );
1844 }
1845
1846