mp4.c 95.8 KB
Newer Older
1 2 3
/*****************************************************************************
 * mp4.c : MP4 file input module for vlc
 *****************************************************************************
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
4
 * Copyright (C) 2001-2004, 2010 the VideoLAN team
5
 * $Id$
6
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7
 *
8 9 10 11
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
12
 *
13 14 15 16 17 18 19
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
Antoine Cellerier's avatar
Antoine Cellerier committed
20
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 22 23 24 25 26
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/

27 28 29 30
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

31
#include <vlc_common.h>
32
#include <vlc_plugin.h>
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
33 34


Clément Stenac's avatar
Clément Stenac committed
35
#include <vlc_demux.h>
36
#include <vlc_md5.h>
Clément Stenac's avatar
Clément Stenac committed
37
#include <vlc_charset.h>
38
#include <vlc_iso_lang.h>
Clément Stenac's avatar
Clément Stenac committed
39
#include <vlc_meta.h>
40
#include <vlc_input.h>
41

42
#include "libmp4.h"
43
#include "drms.h"
44
#include "id3genres.h"
45 46 47 48

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
49 50
static int  Open ( vlc_object_t * );
static void Close( vlc_object_t * );
51

52 53 54 55
vlc_module_begin ()
    set_category( CAT_INPUT )
    set_subcategory( SUBCAT_INPUT_DEMUX )
    set_description( N_("MP4 stream demuxer") )
56
    set_shortname( N_("MP4") )
57 58 59
    set_capability( "demux", 242 )
    set_callbacks( Open, Close )
vlc_module_end ()
60

61 62 63
/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
64
static int   Demux   ( demux_t * );
65
static int   DemuxRef( demux_t *p_demux ){ (void)p_demux; return 0;}
66 67
static int   Seek    ( demux_t *, mtime_t );
static int   Control ( demux_t *, int, va_list );
68

69 70 71 72 73 74 75 76
/* Contain all information about a chunk */
typedef struct
{
    uint64_t     i_offset; /* absolute position of this chunk in the file */
    uint32_t     i_sample_description_index; /* index for SampleEntry to use */
    uint32_t     i_sample_count; /* how many samples in this chunk */
    uint32_t     i_sample_first; /* index of the first sample in this chunk */

Sébastien Escudier's avatar
typos  
Sébastien Escudier committed
77 78
    /* now provide way to calculate pts, dts, and offset without too
        much memory and with fast access */
79 80

    /* with this we can calculate dts/pts without waste memory */
81 82
    uint64_t     i_first_dts;   /* DTS of the first sample */
    uint64_t     i_last_dts;    /* DTS of the last sample */
83
    uint32_t     *p_sample_count_dts;
Laurent Aimar's avatar
Laurent Aimar committed
84 85 86
    uint32_t     *p_sample_delta_dts;   /* dts delta */

    uint32_t     *p_sample_count_pts;
87
    int32_t      *p_sample_offset_pts;  /* pts-dts */
88 89 90 91 92 93 94 95 96

    /* TODO if needed add pts
        but quickly *add* support for edts and seeking */

} mp4_chunk_t;

 /* Contain all needed information for read all track with vlc */
typedef struct
{
97
    unsigned int i_track_ID;/* this should be unique */
98

99 100
    int b_ok;               /* The track is usable */
    int b_enable;           /* is the trak enable by default */
101 102
    bool b_selected;  /* is the trak being played */
    bool b_chapter;   /* True when used for chapter only */
103

104 105
    bool b_mac_encoding;

106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140
    es_format_t fmt;
    es_out_id_t *p_es;

    /* display size only ! */
    int i_width;
    int i_height;

    /* more internal data */
    uint64_t        i_timescale;    /* time scale for this track only */

    /* elst */
    int             i_elst;         /* current elst */
    int64_t         i_elst_time;    /* current elst start time (in movie time scale)*/
    MP4_Box_t       *p_elst;        /* elst (could be NULL) */

    /* give the next sample to read, i_chunk is to find quickly where
      the sample is located */
    uint32_t         i_sample;       /* next sample to read */
    uint32_t         i_chunk;        /* chunk where next sample is stored */
    /* total count of chunk and sample */
    uint32_t         i_chunk_count;
    uint32_t         i_sample_count;

    mp4_chunk_t    *chunk; /* always defined  for each chunk */

    /* sample size, p_sample_size defined only if i_sample_size == 0
        else i_sample_size is size for all sample */
    uint32_t         i_sample_size;
    uint32_t         *p_sample_size; /* XXX perhaps add file offset if take
                                    too much time to do sumations each time*/

    MP4_Box_t *p_stbl;  /* will contain all timing information */
    MP4_Box_t *p_stsd;  /* will contain all data to initialize decoder */
    MP4_Box_t *p_sample;/* point on actual sdsd */

141
    bool b_drms;
142
    void      *p_drms;
Iain Wade's avatar
Iain Wade committed
143
    MP4_Box_t *p_skcr;
144 145 146 147 148 149 150 151 152 153

} mp4_track_t;


struct demux_sys_t
{
    MP4_Box_t    *p_root;      /* container for the whole file */

    mtime_t      i_pcr;

154 155 156 157 158 159
    uint64_t     i_time;         /* time position of the presentation
                                  * in movie timescale */
    uint64_t     i_timescale;    /* movie time scale */
    uint64_t     i_duration;     /* movie duration */
    unsigned int i_tracks;       /* number of tracks */
    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 );
Christophe Mutricy's avatar
Christophe Mutricy committed
173
static void MP4_TrackDestroy(  mp4_track_t * );
174

Laurent Aimar's avatar
Laurent Aimar committed
175 176
static int  MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
177

Laurent Aimar's avatar
Laurent Aimar committed
178
static int  MP4_TrackSeek   ( demux_t *, mp4_track_t *, mtime_t );
179

Laurent Aimar's avatar
Laurent Aimar committed
180 181
static uint64_t MP4_TrackGetPos    ( mp4_track_t * );
static int      MP4_TrackSampleSize( mp4_track_t * );
Laurent Aimar's avatar
Laurent Aimar committed
182 183
static int      MP4_TrackNextSample( demux_t *, mp4_track_t * );
static void     MP4_TrackSetELST( demux_t *, mp4_track_t *, int64_t );
Laurent Aimar's avatar
Laurent Aimar committed
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 */
Laurent Aimar's avatar
Laurent Aimar committed
189
static inline int64_t MP4_TrackGetDTS( demux_t *p_demux, mp4_track_t *p_track )
Laurent Aimar's avatar
Laurent Aimar committed
190
{
191 192 193 194 195
#define chunk p_track->chunk[p_track->i_chunk]

    unsigned int i_index = 0;
    unsigned int i_sample = p_track->i_sample - chunk.i_sample_first;
    int64_t i_dts = chunk.i_first_dts;
Laurent Aimar's avatar
Laurent Aimar committed
196 197 198

    while( i_sample > 0 )
    {
199
        if( i_sample > chunk.p_sample_count_dts[i_index] )
Laurent Aimar's avatar
Laurent Aimar committed
200
        {
201 202 203
            i_dts += chunk.p_sample_count_dts[i_index] *
                chunk.p_sample_delta_dts[i_index];
            i_sample -= chunk.p_sample_count_dts[i_index];
Laurent Aimar's avatar
Laurent Aimar committed
204 205 206 207
            i_index++;
        }
        else
        {
208
            i_dts += i_sample * chunk.p_sample_delta_dts[i_index];
Laurent Aimar's avatar
Laurent Aimar committed
209 210 211 212
            break;
        }
    }

213 214
#undef chunk

215 216 217
    /* now handle elst */
    if( p_track->p_elst )
    {
Laurent Aimar's avatar
Laurent Aimar committed
218
        demux_sys_t         *p_sys = p_demux->p_sys;
219 220 221 222 223 224 225 226 227 228 229
        MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;

        /* convert to offset */
        if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
              elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
            elst->i_media_time[p_track->i_elst] > 0 )
        {
            i_dts -= elst->i_media_time[p_track->i_elst];
        }

        /* add i_elst_time */
230 231
        i_dts += p_track->i_elst_time * p_track->i_timescale /
            p_sys->i_timescale;
232 233 234 235

        if( i_dts < 0 ) i_dts = 0;
    }

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
236
    return INT64_C(1000000) * i_dts / p_track->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
237
}
238

Christophe Mutricy's avatar
Christophe Mutricy committed
239
static inline int64_t MP4_TrackGetPTSDelta( mp4_track_t *p_track )
Laurent Aimar's avatar
Laurent Aimar committed
240 241 242 243 244 245 246 247 248 249 250
{
    mp4_chunk_t *ck = &p_track->chunk[p_track->i_chunk];
    unsigned int i_index = 0;
    unsigned int i_sample = p_track->i_sample - ck->i_sample_first;

    if( ck->p_sample_count_pts == NULL || ck->p_sample_offset_pts == NULL )
        return -1;

    for( i_index = 0;; i_index++ )
    {
        if( i_sample < ck->p_sample_count_pts[i_index] )
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
251
            return ck->p_sample_offset_pts[i_index] * INT64_C(1000000) /
252
                   (int64_t)p_track->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
253 254 255 256 257

        i_sample -= ck->p_sample_count_pts[i_index];
    }
}

Laurent Aimar's avatar
Laurent Aimar committed
258 259
static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
{
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
260
    return INT64_C(1000000) * p_sys->i_time / p_sys->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
261
}
262

263 264
static void LoadChapter( demux_t  *p_demux );

265
/*****************************************************************************
266
 * Open: check file and initializes MP4 structures
267
 *****************************************************************************/
268
static int Open( vlc_object_t * p_this )
269
{
Laurent Aimar's avatar
Laurent Aimar committed
270
    demux_t  *p_demux = (demux_t *)p_this;
271
    demux_sys_t     *p_sys;
272

Christophe Mutricy's avatar
Christophe Mutricy committed
273
    const uint8_t   *p_peek;
274

275
    MP4_Box_t       *p_ftyp;
276
    MP4_Box_t       *p_rmra;
277 278
    MP4_Box_t       *p_mvhd;
    MP4_Box_t       *p_trak;
279

280
    unsigned int    i;
281
    bool      b_seekable;
282
    bool      b_enabled_es;
283

284 285 286
    /* A little test to see if it could be a mp4 */
    if( stream_Peek( p_demux->s, &p_peek, 8 ) < 8 ) return VLC_EGENERIC;

287
    switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
288
    {
289 290 291 292 293 294 295 296 297
        case FOURCC_ftyp:
        case FOURCC_moov:
        case FOURCC_foov:
        case FOURCC_moof:
        case FOURCC_mdat:
        case FOURCC_udta:
        case FOURCC_free:
        case FOURCC_skip:
        case FOURCC_wide:
298
        case VLC_FOURCC( 'p', 'n', 'o', 't' ):
299 300
            break;
         default:
301
            return VLC_EGENERIC;
302
    }
303

304
    /* I need to seek */
305
    stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b_seekable );
306
    if( !b_seekable )
307
    {
308
        msg_Warn( p_demux, "MP4 plugin discarded (not fastseekable)" );
309
        return VLC_EGENERIC;
310
    }
311

312
    /*Set exported functions */
Laurent Aimar's avatar
Laurent Aimar committed
313 314
    p_demux->pf_demux = Demux;
    p_demux->pf_control = Control;
315 316

    /* create our structure that will contains all data */
Rémi Duraffort's avatar
Rémi Duraffort committed
317
    p_demux->p_sys = p_sys = calloc( 1, sizeof( demux_sys_t ) );
318 319

    /* Now load all boxes ( except raw data ) */
Laurent Aimar's avatar
Laurent Aimar committed
320
    if( ( p_sys->p_root = MP4_BoxGetRoot( p_demux->s ) ) == NULL )
321
    {
Laurent Aimar's avatar
Laurent Aimar committed
322
        msg_Warn( p_demux, "MP4 plugin discarded (not a valid file)" );
Laurent Aimar's avatar
Laurent Aimar committed
323
        goto error;
324 325
    }

Laurent Aimar's avatar
Laurent Aimar committed
326
    MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
327

328
    if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
329 330 331 332
    {
        switch( p_ftyp->data.p_ftyp->i_major_brand )
        {
            case( FOURCC_isom ):
Laurent Aimar's avatar
Laurent Aimar committed
333
                msg_Dbg( p_demux,
334 335
                         "ISO Media file (isom) version %d.",
                         p_ftyp->data.p_ftyp->i_minor_version );
336
                break;
337 338 339
            case( FOURCC_3gp4 ):
                msg_Dbg( p_demux, "3gp Media file version 4" );
                break;
340
            default:
Laurent Aimar's avatar
Laurent Aimar committed
341
                msg_Dbg( p_demux,
342 343
                         "unrecognized major file specification (%4.4s).",
                          (char*)&p_ftyp->data.p_ftyp->i_major_brand );
344 345 346 347 348
                break;
        }
    }
    else
    {
Laurent Aimar's avatar
Laurent Aimar committed
349
        msg_Dbg( p_demux, "file type box missing (assuming ISO Media file)" );
350 351 352
    }

    /* the file need to have one moov box */
353
    if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
354
    {
355
        MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
356 357 358

        if( !p_foov )
        {
Laurent Aimar's avatar
Laurent Aimar committed
359
            msg_Err( p_demux, "MP4 plugin discarded (no moov box)" );
360
            goto error;
361 362 363
        }
        /* we have a free box as a moov, rename it */
        p_foov->i_type = FOURCC_moov;
364 365
    }

366
    if( ( p_rmra = MP4_BoxGet( p_sys->p_root,  "/moov/rmra" ) ) )
367 368 369 370
    {
        int        i_count = MP4_BoxCount( p_rmra, "rmda" );
        int        i;

Laurent Aimar's avatar
Laurent Aimar committed
371
        msg_Dbg( p_demux, "detected playlist mov file (%d ref)", i_count );
372

373
        input_thread_t *p_input = demux_GetParentInput( p_demux );
374
        input_item_t *p_current = input_GetItem( p_input );
375

376 377
        input_item_node_t *p_subitems = input_item_node_Create( p_current );

378
        for( i = 0; i < i_count; i++ )
379
        {
380 381 382
            MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
            char      *psz_ref;
            uint32_t  i_ref_type;
383

384
            if( !p_rdrf || !( psz_ref = strdup( p_rdrf->data.p_rdrf->psz_ref ) ) )
385
            {
386 387 388
                continue;
            }
            i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
389

390 391 392 393 394 395
            msg_Dbg( p_demux, "new ref=`%s' type=%4.4s",
                     psz_ref, (char*)&i_ref_type );

            if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
            {
                if( strstr( psz_ref, "qt5gateQT" ) )
396
                {
397
                    msg_Dbg( p_demux, "ignoring pseudo ref =`%s'", psz_ref );
398 399
                    continue;
                }
400 401
                if( !strncmp( psz_ref, "http://", 7 ) ||
                    !strncmp( psz_ref, "rtsp://", 7 ) )
402
                {
403
                    ;
404 405 406
                }
                else
                {
407
                    char *psz_absolute;
408
                    char *psz_path = strdup( p_demux->psz_location );
409 410 411 412
                    char *end = strrchr( psz_path, '/' );
                    if( end ) end[1] = '\0';
                    else *psz_path = '\0';

Christophe Mutricy's avatar
Christophe Mutricy committed
413 414
                    if( asprintf( &psz_absolute, "%s://%s%s",
                                  p_demux->psz_access, psz_path, psz_ref ) < 0 )
Rémi Duraffort's avatar
Rémi Duraffort committed
415 416 417
                    {
                        free( psz_ref );
                        free( psz_path );
Rémi Duraffort's avatar
Rémi Duraffort committed
418
                        vlc_object_release( p_input) ;
Christophe Mutricy's avatar
Christophe Mutricy committed
419
                        return VLC_ENOMEM;
Rémi Duraffort's avatar
Rémi Duraffort committed
420
                    }
421 422 423 424

                    free( psz_ref );
                    psz_ref = psz_absolute;
                    free( psz_path );
425
                }
426
                msg_Dbg( p_demux, "adding ref = `%s'", psz_ref );
427
                input_item_t *p_input = input_item_New( psz_ref, NULL );
428
                input_item_CopyOptions( p_current, p_input );
429
                input_item_node_AppendItem( p_subitems, p_input );
430
                vlc_gc_decref( p_input );
431
            }
432
            else
433
            {
434 435
                msg_Err( p_demux, "unknown ref type=%4.4s FIXME (send a bug report)",
                         (char*)&p_rdrf->data.p_rdrf->i_ref_type );
436
            }
437
            free( psz_ref );
438
        }
439
        input_item_node_PostAndDelete( p_subitems );
440
        vlc_object_release( p_input );
441 442
    }

443
    if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
444
    {
445 446
        if( !p_rmra )
        {
Laurent Aimar's avatar
Laurent Aimar committed
447
            msg_Err( p_demux, "cannot find /moov/mvhd" );
448
            goto error;
449 450 451
        }
        else
        {
Laurent Aimar's avatar
Laurent Aimar committed
452 453
            msg_Warn( p_demux, "cannot find /moov/mvhd (pure ref file)" );
            p_demux->pf_demux = DemuxRef;
454
            return VLC_SUCCESS;
455
        }
456 457 458
    }
    else
    {
459
        p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
460 461 462 463 464
        if( p_sys->i_timescale == 0 )
        {
            msg_Err( p_this, "bad timescale" );
            goto error;
        }
465
        p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
466
    }
467

468
    if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
469
    {
Laurent Aimar's avatar
Laurent Aimar committed
470
        msg_Err( p_demux, "cannot find any /moov/trak" );
471
        goto error;
472
    }
473
    msg_Dbg( p_demux, "found %d track%c",
474 475
                        p_sys->i_tracks,
                        p_sys->i_tracks ? 's':' ' );
476 477

    /* allocate memory */
Laurent Aimar's avatar
Laurent Aimar committed
478
    p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
479 480
    if( p_sys->track == NULL )
        goto error;
Laurent Aimar's avatar
Laurent Aimar committed
481
    memset( p_sys->track, 0, p_sys->i_tracks * sizeof( mp4_track_t ) );
482

483 484
    /* Search the first chap reference (like quicktime) and
     * check that at least 1 stream is enabled */
485
    p_sys->p_tref_chap = NULL;
486
    b_enabled_es = false;
487 488 489 490
    for( i = 0; i < p_sys->i_tracks; i++ )
    {
        MP4_Box_t *p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );

491 492 493 494 495 496 497 498

        MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
        if( p_tkhd && (p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED) )
            b_enabled_es = true;

        MP4_Box_t *p_chap = MP4_BoxGet( p_trak, "tref/chap", i );
        if( p_chap && p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
            p_sys->p_tref_chap = p_chap;
499 500
    }

Rémi Denis-Courmont's avatar
Typos  
Rémi Denis-Courmont committed
501
    /* now process each track and extract all useful information */
502
    for( i = 0; i < p_sys->i_tracks; i++ )
503
    {
504
        p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
505
        MP4_TrackCreate( p_demux, &p_sys->track[i], p_trak, !b_enabled_es );
506

507
        if( p_sys->track[i].b_ok && !p_sys->track[i].b_chapter )
508
        {
Laurent Aimar's avatar
Laurent Aimar committed
509
            const char *psz_cat;
510
            switch( p_sys->track[i].fmt.i_cat )
511 512 513 514 515 516 517
            {
                case( VIDEO_ES ):
                    psz_cat = "video";
                    break;
                case( AUDIO_ES ):
                    psz_cat = "audio";
                    break;
518 519 520 521
                case( SPU_ES ):
                    psz_cat = "subtitle";
                    break;

522
                default:
523
                    psz_cat = "unknown";
524 525
                    break;
            }
526

Laurent Aimar's avatar
Laurent Aimar committed
527
            msg_Dbg( p_demux, "adding track[Id 0x%x] %s (%s) language %s",
528 529 530 531
                     p_sys->track[i].i_track_ID, psz_cat,
                     p_sys->track[i].b_enable ? "enable":"disable",
                     p_sys->track[i].fmt.psz_language ?
                     p_sys->track[i].fmt.psz_language : "undef" );
532
        }
533 534 535 536 537 538 539
        else if( p_sys->track[i].b_ok && p_sys->track[i].b_chapter )
        {
            msg_Dbg( p_demux, "using track[Id 0x%x] for chapter language %s",
                     p_sys->track[i].i_track_ID,
                     p_sys->track[i].fmt.psz_language ?
                     p_sys->track[i].fmt.psz_language : "undef" );
        }
540 541
        else
        {
542 543
            msg_Dbg( p_demux, "ignoring track[Id 0x%x]",
                     p_sys->track[i].i_track_ID );
544 545
        }
    }
546

547 548
    /* */
    LoadChapter( p_demux );
549

550 551 552
    return VLC_SUCCESS;

error:
553
    if( p_sys->p_root )
Laurent Aimar's avatar
Laurent Aimar committed
554
    {
Laurent Aimar's avatar
Laurent Aimar committed
555
        MP4_BoxFree( p_demux->s, p_sys->p_root );
Laurent Aimar's avatar
Laurent Aimar committed
556
    }
557
    free( p_sys );
558
    return VLC_EGENERIC;
559 560 561
}

/*****************************************************************************
562
 * Demux: read packet and send them to decoders
563 564
 *****************************************************************************
 * TODO check for newly selected track (ie audio upt to now )
565
 *****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
566
static int Demux( demux_t *p_demux )
567
{
Laurent Aimar's avatar
Laurent Aimar committed
568
    demux_sys_t *p_sys = p_demux->p_sys;
569
    unsigned int i_track;
570

571 572 573 574

    unsigned int i_track_selected;

    /* check for newly selected/unselected track */
575 576
    for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks;
         i_track++ )
577
    {
Laurent Aimar's avatar
Laurent Aimar committed
578
        mp4_track_t *tk = &p_sys->track[i_track];
579
        bool b;
Laurent Aimar's avatar
Laurent Aimar committed
580

581
        if( !tk->b_ok || tk->b_chapter ||
582
            ( tk->b_selected && tk->i_sample >= tk->i_sample_count ) )
583
        {
584
            continue;
585
        }
586

587
        es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
588

589 590 591 592 593 594 595 596 597 598 599 600
        if( tk->b_selected && !b )
        {
            MP4_TrackUnselect( p_demux, tk );
        }
        else if( !tk->b_selected && b)
        {
            MP4_TrackSelect( p_demux, tk, MP4_GetMoviePTS( p_sys ) );
        }

        if( tk->b_selected )
        {
            i_track_selected++;
601 602 603 604 605
        }
    }

    if( i_track_selected <= 0 )
    {
Laurent Aimar's avatar
 
Laurent Aimar committed
606 607 608 609 610 611 612 613 614 615 616
        p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
        if( p_sys->i_timescale > 0 )
        {
            int64_t i_length = (mtime_t)1000000 *
                               (mtime_t)p_sys->i_duration /
                               (mtime_t)p_sys->i_timescale;
            if( MP4_GetMoviePTS( p_sys ) >= i_length )
                return 0;
            return 1;
        }

Laurent Aimar's avatar
Laurent Aimar committed
617
        msg_Warn( p_demux, "no track selected, exiting..." );
Laurent Aimar's avatar
Laurent Aimar committed
618
        return 0;
619 620
    }

621 622 623
    /* */
    MP4_UpdateSeekpoint( p_demux );

624
    /* first wait for the good time to read a packet */
Laurent Aimar's avatar
Laurent Aimar committed
625
    es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
626

627
    p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
628 629

    /* we will read 100ms for each stream so ...*/
630
    p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
631

632
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
633
    {
Laurent Aimar's avatar
Laurent Aimar committed
634 635
        mp4_track_t *tk = &p_sys->track[i_track];

636
        if( !tk->b_ok || tk->b_chapter || !tk->b_selected || tk->i_sample >= tk->i_sample_count )
637
            continue;
638

Laurent Aimar's avatar
Laurent Aimar committed
639
        while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
640
        {
641
#if 0
642
            msg_Dbg( p_demux, "tk(%i)=%lld mv=%lld", i_track,
Laurent Aimar's avatar
Laurent Aimar committed
643
                     MP4_TrackGetDTS( p_demux, tk ),
644 645 646
                     MP4_GetMoviePTS( p_sys ) );
#endif

Laurent Aimar's avatar
Laurent Aimar committed
647
            if( MP4_TrackSampleSize( tk ) > 0 )
648
            {
649
                block_t *p_block;
Laurent Aimar's avatar
Laurent Aimar committed
650
                int64_t i_delta;
651

652
                /* go,go go ! */
Laurent Aimar's avatar
Laurent Aimar committed
653
                if( stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
654
                {
655 656
                    msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
                              tk->i_track_ID );
Laurent Aimar's avatar
Laurent Aimar committed
657
                    MP4_TrackUnselect( p_demux, tk );
658 659 660
                    break;
                }

Laurent Aimar's avatar
Laurent Aimar committed
661
                /* now read pes */
662 663
                if( !(p_block =
                         stream_Block( p_demux->s, MP4_TrackSampleSize(tk) )) )
664
                {
665 666
                    msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
                              tk->i_track_ID );
Laurent Aimar's avatar
Laurent Aimar committed
667
                    MP4_TrackUnselect( p_demux, tk );
668 669
                    break;
                }
Gildas Bazin's avatar
 
Gildas Bazin committed
670

Laurent Aimar's avatar
Laurent Aimar committed
671
                if( tk->b_drms && tk->p_drms )
672
                {
Iain Wade's avatar
Iain Wade committed
673 674 675 676 677
                    if( tk->p_skcr )
                    {
                        uint32_t p_key[4];
                        drms_get_p_key( tk->p_drms, p_key );

Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
678
                        for( size_t i_pos = tk->p_skcr->data.p_skcr->i_init; i_pos < p_block->i_buffer; )
Iain Wade's avatar
Iain Wade committed
679 680 681 682 683 684 685 686 687 688 689 690
                        {
                            int n = __MIN( tk->p_skcr->data.p_skcr->i_encr, p_block->i_buffer - i_pos );
                            drms_decrypt( tk->p_drms, (uint32_t*)&p_block->p_buffer[i_pos], n, p_key );
                            i_pos += n;
                            i_pos += __MIN( tk->p_skcr->data.p_skcr->i_decr, p_block->i_buffer - i_pos );
                        }
                    }
                    else
                    {
                        drms_decrypt( tk->p_drms, (uint32_t*)p_block->p_buffer,
                                      p_block->i_buffer, NULL );
                    }
691
                }
692
                else if( tk->fmt.i_cat == SPU_ES )
693
                {
694 695
                    if( tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) &&
                        p_block->i_buffer >= 2 )
696
                    {
697 698 699
                        uint16_t i_size = GetWBE( p_block->p_buffer );

                        if( i_size + 2 <= p_block->i_buffer )
700
                        {
701 702
                            char *p;
                            /* remove the length field, and append a '\0' */
703 704
                            memmove( &p_block->p_buffer[0],
                                     &p_block->p_buffer[2], i_size );
705 706 707 708
                            p_block->p_buffer[i_size] = '\0';
                            p_block->i_buffer = i_size + 1;

                            /* convert \r -> \n */
709
                            while( ( p = strchr((char *) p_block->p_buffer, '\r' ) ) )
710 711 712 713 714 715 716 717
                            {
                                *p = '\n';
                            }
                        }
                        else
                        {
                            /* Invalid */
                            p_block->i_buffer = 0;
718
                        }
719 720
                    }
                }
Laurent Aimar's avatar
Laurent Aimar committed
721
                /* dts */
Laurent Aimar's avatar
Laurent Aimar committed
722
                p_block->i_dts = VLC_TS_0 + MP4_TrackGetDTS( p_demux, tk );
Laurent Aimar's avatar
Laurent Aimar committed
723
                /* pts */
Christophe Mutricy's avatar
Christophe Mutricy committed
724
                i_delta = MP4_TrackGetPTSDelta( tk );
725
                if( i_delta != -1 )
Laurent Aimar's avatar
Laurent Aimar committed
726 727 728 729
                    p_block->i_pts = p_block->i_dts + i_delta;
                else if( tk->fmt.i_cat != VIDEO_ES )
                    p_block->i_pts = p_block->i_dts;
                else
Laurent Aimar's avatar
Laurent Aimar committed
730
                    p_block->i_pts = VLC_TS_INVALID;
731

Laurent Aimar's avatar
Laurent Aimar committed
732
                if( !tk->b_drms || ( tk->b_drms && tk->p_drms ) )
Laurent Aimar's avatar
Laurent Aimar committed
733
                    es_out_Send( p_demux->out, tk->p_es, p_block );
Laurent Aimar's avatar
Laurent Aimar committed
734
            }
735

Laurent Aimar's avatar
Laurent Aimar committed
736
            /* Next sample */
Laurent Aimar's avatar
Laurent Aimar committed
737
            if( MP4_TrackNextSample( p_demux, tk ) )
Laurent Aimar's avatar
Laurent Aimar committed
738
                break;
739 740 741
        }
    }

Laurent Aimar's avatar
Laurent Aimar committed
742
    return 1;
743
}
744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765

static void MP4_UpdateSeekpoint( demux_t *p_demux )
{
    demux_sys_t *p_sys = p_demux->p_sys;
    int64_t i_time;
    int i;
    if( !p_sys->p_title )
        return;
    i_time = MP4_GetMoviePTS( p_sys );
    for( i = 0; i < p_sys->p_title->i_seekpoint; i++ )
    {
        if( i_time < p_sys->p_title->seekpoint[i]->i_time_offset )
            break;
    }
    i--;

    if( i != p_demux->info.i_seekpoint && i >= 0 )
    {
        p_demux->info.i_seekpoint = i;
        p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
    }
}
766
/*****************************************************************************
Sébastien Escudier's avatar
typos  
Sébastien Escudier committed
767
 * Seek: Go to i_date
768 769
******************************************************************************/
static int Seek( demux_t *p_demux, mtime_t i_date )
770
{
Laurent Aimar's avatar
Laurent Aimar committed
771
    demux_sys_t *p_sys = p_demux->p_sys;
772
    unsigned int i_track;
Laurent Aimar's avatar
Laurent Aimar committed
773

774
    /* First update update global time */
775
    p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
Laurent Aimar's avatar
Laurent Aimar committed
776
    p_sys->i_pcr  = i_date;
777

778
    /* Now for each stream try to go to this time */
779
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
780
    {
Laurent Aimar's avatar
Laurent Aimar committed
781
        mp4_track_t *tk = &p_sys->track[i_track];
782
        MP4_TrackSeek( p_demux, tk, i_date );
783
    }
784
    MP4_UpdateSeekpoint( p_demux );
785 786 787

    es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_date );

788
    return VLC_SUCCESS;
789
}
790 791

/*****************************************************************************
792
 * Control:
793
 *****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
794
static int Control( demux_t *p_demux, int i_query, va_list args )
795
{
Laurent Aimar's avatar
Laurent Aimar committed
796
    demux_sys_t *p_sys = p_demux->p_sys;
797

Gildas Bazin's avatar
 
Gildas Bazin committed
798
    double f, *pf;
799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816
    int64_t i64, *pi64;

    switch( i_query )
    {
        case DEMUX_GET_POSITION:
            pf = (double*)va_arg( args, double * );
            if( p_sys->i_duration > 0 )
            {
                *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
            }
            else
            {
                *pf = 0.0;
            }
            return VLC_SUCCESS;

        case DEMUX_SET_POSITION:
            f = (double)va_arg( args, double );
Gildas Bazin's avatar
 
Gildas Bazin committed
817 818 819 820 821
            if( p_sys->i_timescale > 0 )
            {
                i64 = (int64_t)( f * (double)1000000 *
                                 (double)p_sys->i_duration /
                                 (double)p_sys->i_timescale );
Laurent Aimar's avatar
Laurent Aimar committed
822
                return Seek( p_demux, i64 );
Gildas Bazin's avatar
 
Gildas Bazin committed
823 824
            }
            else return VLC_SUCCESS;
825 826 827

        case DEMUX_GET_TIME:
            pi64 = (int64_t*)va_arg( args, int64_t * );
Gildas Bazin's avatar
 
Gildas Bazin committed
828 829 830 831 832 833 834
            if( p_sys->i_timescale > 0 )
            {
                *pi64 = (mtime_t)1000000 *
                        (mtime_t)p_sys->i_time /
                        (mtime_t)p_sys->i_timescale;
            }
            else *pi64 = 0;
835 836 837 838
            return VLC_SUCCESS;

        case DEMUX_SET_TIME:
            i64 = (int64_t)va_arg( args, int64_t );
Laurent Aimar's avatar
Laurent Aimar committed
839
            return Seek( p_demux, i64 );
840 841 842

        case DEMUX_GET_LENGTH:
            pi64 = (int64_t*)va_arg( args, int64_t * );
Gildas Bazin's avatar
 
Gildas Bazin committed
843 844 845 846 847 848 849
            if( p_sys->i_timescale > 0 )
            {
                *pi64 = (mtime_t)1000000 *
                        (mtime_t)p_sys->i_duration /
                        (mtime_t)p_sys->i_timescale;
            }
            else *pi64 = 0;
850
            return VLC_SUCCESS;
Gildas Bazin's avatar
 
Gildas Bazin committed
851

852
        case DEMUX_GET_FPS:
853
            pf = (double*)va_arg( args, double* );
Laurent Aimar's avatar
Laurent Aimar committed
854
            *pf = p_sys->f_fps;
855
            return VLC_SUCCESS;
Gildas Bazin's avatar