mp4.c 72.6 KB
Newer Older
1 2 3
/*****************************************************************************
 * mp4.c : MP4 file input module for vlc
 *****************************************************************************
Derk-Jan Hartman's avatar
Derk-Jan Hartman committed
4
 * Copyright (C) 2001-2004 VideoLAN
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 20 21 22 23 24 25 26 27 28 29
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>                                      /* malloc(), free() */

#include <vlc/vlc.h>
#include <vlc/input.h>
30
#include <vlc_playlist.h>
31
#include "iso_lang.h"
32
#include "vlc_meta.h"
33

34
#include "libmp4.h"
35
#include "drms.h"
36

37 38 39 40
#ifdef UNDER_CE
#define uint64_t int64_t
#endif

41 42 43
/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
44 45
static int  Open ( vlc_object_t * );
static void Close( vlc_object_t * );
46

47
vlc_module_begin();
Clément Stenac's avatar
Clément Stenac committed
48 49
    set_category( CAT_INPUT );
    set_subcategory( SUBCAT_INPUT_DEMUX );
Derk-Jan Hartman's avatar
Derk-Jan Hartman committed
50
    set_description( _("MP4 stream demuxer") );
Laurent Aimar's avatar
Laurent Aimar committed
51
    set_capability( "demux2", 242 );
52
    set_callbacks( Open, Close );
53 54
vlc_module_end();

55 56 57
/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
58 59 60 61
static int   Demux   ( demux_t * );
static int   DemuxRef( demux_t *p_demux ){ return 0;}
static int   Seek    ( demux_t *, mtime_t );
static int   Control ( demux_t *, int, va_list );
62

63 64 65 66 67 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 */

    /* now provide way to calculate pts, dts, and offset without to
        much memory and with fast acces */

    /* with this we can calculate dts/pts without waste memory */
    uint64_t     i_first_dts;
    uint32_t     *p_sample_count_dts;
Laurent Aimar's avatar
Laurent Aimar committed
77 78 79
    uint32_t     *p_sample_delta_dts;   /* dts delta */

    uint32_t     *p_sample_count_pts;
80
    int32_t      *p_sample_offset_pts;  /* pts-dts */
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150

    /* 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
{
    int i_track_ID;     /* this should be unique */

    int b_ok;           /* The track is usable */
    int b_enable;       /* is the trak enable by default */
    vlc_bool_t b_selected;     /* is the trak being played */

    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 */

    vlc_bool_t b_drms;
    void      *p_drms;

} mp4_track_t;


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

    mtime_t      i_pcr;

    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 */
};

151
/*****************************************************************************
152
 * Declaration of local function
153
 *****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
154 155
static void MP4_TrackCreate ( demux_t *, mp4_track_t *, MP4_Box_t  *);
static void MP4_TrackDestroy( demux_t *, mp4_track_t * );
156

Laurent Aimar's avatar
Laurent Aimar committed
157 158
static int  MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
159

Laurent Aimar's avatar
Laurent Aimar committed
160
static int  MP4_TrackSeek   ( demux_t *, mp4_track_t *, mtime_t );
161

Laurent Aimar's avatar
Laurent Aimar committed
162 163
static uint64_t MP4_TrackGetPos    ( mp4_track_t * );
static int      MP4_TrackSampleSize( mp4_track_t * );
Laurent Aimar's avatar
Laurent Aimar committed
164 165
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
166 167

/* Return time in s of a track */
Laurent Aimar's avatar
Laurent Aimar committed
168
static inline int64_t MP4_TrackGetDTS( demux_t *p_demux, mp4_track_t *p_track )
Laurent Aimar's avatar
Laurent Aimar committed
169
{
170 171 172 173 174
#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
175 176 177

    while( i_sample > 0 )
    {
178
        if( i_sample > chunk.p_sample_count_dts[i_index] )
Laurent Aimar's avatar
Laurent Aimar committed
179
        {
180 181 182
            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
183 184 185 186
            i_index++;
        }
        else
        {
187
            i_dts += i_sample * chunk.p_sample_delta_dts[i_index];
Laurent Aimar's avatar
Laurent Aimar committed
188 189 190 191 192
            i_sample = 0;
            break;
        }
    }

193 194
#undef chunk

195 196 197
    /* now handle elst */
    if( p_track->p_elst )
    {
Laurent Aimar's avatar
Laurent Aimar committed
198
        demux_sys_t         *p_sys = p_demux->p_sys;
199 200 201 202 203 204 205 206 207 208 209
        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 */
210 211
        i_dts += p_track->i_elst_time * p_track->i_timescale /
            p_sys->i_timescale;
212 213 214 215

        if( i_dts < 0 ) i_dts = 0;
    }

216
    return I64C(1000000) * i_dts / p_track->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
217
}
218

Laurent Aimar's avatar
Laurent Aimar committed
219 220 221 222 223 224 225 226 227 228 229 230
static inline int64_t MP4_TrackGetPTSDelta( demux_t *p_demux, mp4_track_t *p_track )
{
    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] )
231 232
            return ck->p_sample_offset_pts[i_index] * I64C(1000000) /
                   (int64_t)p_track->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
233 234 235 236 237

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

Laurent Aimar's avatar
Laurent Aimar committed
238 239
static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
{
240
    return I64C(1000000) * p_sys->i_time / p_sys->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
241
}
242

Laurent Aimar's avatar
Laurent Aimar committed
243
#define FREE( p ) if( p ) { free( p ); (p) = NULL;}
244

245
/*****************************************************************************
246
 * Open: check file and initializes MP4 structures
247
 *****************************************************************************/
248
static int Open( vlc_object_t * p_this )
249
{
Laurent Aimar's avatar
Laurent Aimar committed
250
    demux_t  *p_demux = (demux_t *)p_this;
251
    demux_sys_t     *p_sys;
252

253
    uint8_t         *p_peek;
254

255
    MP4_Box_t       *p_ftyp;
256
    MP4_Box_t       *p_rmra;
257 258
    MP4_Box_t       *p_mvhd;
    MP4_Box_t       *p_trak;
259

260
    unsigned int    i;
261
    vlc_bool_t      b_seekable;
262

263 264 265
    /* A little test to see if it could be a mp4 */
    if( stream_Peek( p_demux->s, &p_peek, 8 ) < 8 ) return VLC_EGENERIC;

266
    switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
267
    {
268 269 270 271 272 273 274 275 276
        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:
277
        case VLC_FOURCC( 'p', 'n', 'o', 't' ):
278 279
            break;
         default:
280
            return VLC_EGENERIC;
281
    }
282

283
    /* I need to seek */
Laurent Aimar's avatar
Laurent Aimar committed
284
    stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_seekable );
285
    if( !b_seekable )
286
    {
Laurent Aimar's avatar
Laurent Aimar committed
287
        msg_Warn( p_demux, "MP4 plugin discarded (unseekable)" );
288
        return VLC_EGENERIC;
289
    }
290

291
    /*Set exported functions */
Laurent Aimar's avatar
Laurent Aimar committed
292 293
    p_demux->pf_demux = Demux;
    p_demux->pf_control = Control;
294 295

    /* create our structure that will contains all data */
Laurent Aimar's avatar
Laurent Aimar committed
296
    p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
297
    memset( p_sys, 0, sizeof( demux_sys_t ) );
298 299

    /* Now load all boxes ( except raw data ) */
Laurent Aimar's avatar
Laurent Aimar committed
300
    if( ( p_sys->p_root = MP4_BoxGetRoot( p_demux->s ) ) == NULL )
301
    {
Laurent Aimar's avatar
Laurent Aimar committed
302
        msg_Warn( p_demux, "MP4 plugin discarded (not a valid file)" );
Laurent Aimar's avatar
Laurent Aimar committed
303
        goto error;
304 305
    }

Laurent Aimar's avatar
Laurent Aimar committed
306
    MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
307

308
    if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
309 310 311 312
    {
        switch( p_ftyp->data.p_ftyp->i_major_brand )
        {
            case( FOURCC_isom ):
Laurent Aimar's avatar
Laurent Aimar committed
313
                msg_Dbg( p_demux,
314 315
                         "ISO Media file (isom) version %d.",
                         p_ftyp->data.p_ftyp->i_minor_version );
316 317
                break;
            default:
Laurent Aimar's avatar
Laurent Aimar committed
318
                msg_Dbg( p_demux,
319 320
                         "unrecognized major file specification (%4.4s).",
                          (char*)&p_ftyp->data.p_ftyp->i_major_brand );
321 322 323 324 325
                break;
        }
    }
    else
    {
Laurent Aimar's avatar
Laurent Aimar committed
326
        msg_Dbg( p_demux, "file type box missing (assuming ISO Media file)" );
327 328 329
    }

    /* the file need to have one moov box */
330
    if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
331
    {
332
        MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
333 334 335

        if( !p_foov )
        {
Laurent Aimar's avatar
Laurent Aimar committed
336
            msg_Err( p_demux, "MP4 plugin discarded (no moov box)" );
337
            goto error;
338 339 340
        }
        /* we have a free box as a moov, rename it */
        p_foov->i_type = FOURCC_moov;
341 342
    }

343
    if( ( p_rmra = MP4_BoxGet( p_sys->p_root,  "/moov/rmra" ) ) )
344 345
    {
        playlist_t *p_playlist;
346
        playlist_item_t *p_item;
347 348
        int        i_count = MP4_BoxCount( p_rmra, "rmda" );
        int        i;
349
        vlc_bool_t b_play = VLC_FALSE;
350

Laurent Aimar's avatar
Laurent Aimar committed
351
        msg_Dbg( p_demux, "detected playlist mov file (%d ref)", i_count );
352 353

        p_playlist =
Laurent Aimar's avatar
Laurent Aimar committed
354
            (playlist_t *)vlc_object_find( p_demux,
355 356 357 358
                                           VLC_OBJECT_PLAYLIST,
                                           FIND_ANYWHERE );
        if( p_playlist )
        {
359
            p_item = playlist_LockItemGetByInput( p_playlist,
360 361 362
                      ((input_thread_t *)p_demux->p_parent)->input.p_item );
            playlist_ItemToNode( p_playlist, p_item );

363 364 365 366 367 368 369 370 371 372 373 374
            for( i = 0; i < i_count; i++ )
            {
                MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
                char      *psz_ref;
                uint32_t  i_ref_type;

                if( !p_rdrf || !( psz_ref = p_rdrf->data.p_rdrf->psz_ref ) )
                {
                    continue;
                }
                i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;

Laurent Aimar's avatar
Laurent Aimar committed
375
                msg_Dbg( p_demux, "new ref=`%s' type=%4.4s",
376 377 378 379 380 381
                         psz_ref, (char*)&i_ref_type );

                if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
                {
                    if( strstr( psz_ref, "qt5gateQT" ) )
                    {
Laurent Aimar's avatar
Laurent Aimar committed
382
                        msg_Dbg( p_demux, "ignoring pseudo ref =`%s'", psz_ref );
383 384
                        continue;
                    }
385 386
                    if( !strncmp( psz_ref, "http://", 7 ) ||
                        !strncmp( psz_ref, "rtsp://", 7 ) )
387
                    {
Laurent Aimar's avatar
Laurent Aimar committed
388
                        msg_Dbg( p_demux, "adding ref = `%s'", psz_ref );
389 390 391 392 393 394 395 396 397 398 399 400 401 402 403
                        if( p_item )
                        {
                            playlist_item_t *p_child =
                                        playlist_ItemNew( p_playlist,
                                                          psz_ref, psz_ref );
                            if( p_child )
                            {
                                playlist_NodeAddItem( p_playlist, p_child,
                                                 p_item->pp_parents[0]->i_view,
                                                 p_item, PLAYLIST_APPEND,
                                                 PLAYLIST_END );
                                playlist_CopyParents( p_item, p_child );
                                b_play = VLC_TRUE;
                            }
                        }
404 405 406 407
                    }
                    else
                    {
                        /* msg dbg relative ? */
408
                        char *psz_absolute = alloca( strlen( p_demux->psz_access ) + 3 + strlen( p_demux->psz_path ) + strlen( psz_ref ) + 1);
Laurent Aimar's avatar
Laurent Aimar committed
409
                        char *end = strrchr( p_demux->psz_path, '/' );
410 411 412

                        if( end )
                        {
Laurent Aimar's avatar
Laurent Aimar committed
413
                            int i_len = end + 1 - p_demux->psz_path;
414

415 416 417
                            strcpy( psz_absolute, p_demux->psz_access );
                            strcat( psz_absolute, "://" );
                            strncat( psz_absolute, p_demux->psz_path, i_len);
418 419 420 421 422 423
                        }
                        else
                        {
                            strcpy( psz_absolute, "" );
                        }
                        strcat( psz_absolute, psz_ref );
Laurent Aimar's avatar
Laurent Aimar committed
424
                        msg_Dbg( p_demux, "adding ref = `%s'", psz_absolute );
425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440
                        if( p_item )
                        {
                            playlist_item_t *p_child =
                                        playlist_ItemNew( p_playlist,
                                                          psz_absolute,
                                                          psz_absolute );
                            if( p_child )
                            {
                                playlist_NodeAddItem( p_playlist, p_child,
                                                 p_item->pp_parents[0]->i_view,
                                                 p_item, PLAYLIST_APPEND,
                                                 PLAYLIST_END );
                                playlist_CopyParents( p_item, p_child );
                                b_play = VLC_TRUE;
                            }
                        }
441 442 443 444
                    }
                }
                else
                {
Laurent Aimar's avatar
Laurent Aimar committed
445
                    msg_Err( p_demux, "unknown ref type=%4.4s FIXME (send a bug report)",
Laurent Aimar's avatar
Laurent Aimar committed
446
                             (char*)&p_rdrf->data.p_rdrf->i_ref_type );
447 448
                }
            }
449 450 451 452 453 454
            if( b_play == VLC_TRUE )
            {
                 playlist_Control( p_playlist, PLAYLIST_VIEWPLAY,
                                   p_playlist->status.i_view,
                                   p_playlist->status.p_item, NULL );
            }
455 456 457 458
            vlc_object_release( p_playlist );
        }
        else
        {
Laurent Aimar's avatar
Laurent Aimar committed
459
            msg_Err( p_demux, "can't find playlist" );
460 461 462
        }
    }

463
    if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
464
    {
465 466
        if( !p_rmra )
        {
Laurent Aimar's avatar
Laurent Aimar committed
467
            msg_Err( p_demux, "cannot find /moov/mvhd" );
468
            goto error;
469 470 471
        }
        else
        {
Laurent Aimar's avatar
Laurent Aimar committed
472 473
            msg_Warn( p_demux, "cannot find /moov/mvhd (pure ref file)" );
            p_demux->pf_demux = DemuxRef;
474
            return VLC_SUCCESS;
475
        }
476 477 478
    }
    else
    {
479 480
        p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
        p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
481
    }
482

483
    if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
484
    {
Laurent Aimar's avatar
Laurent Aimar committed
485
        msg_Err( p_demux, "cannot find any /moov/trak" );
486
        goto error;
487
    }
Laurent Aimar's avatar
Laurent Aimar committed
488
    msg_Dbg( p_demux, "find %d track%c",
489 490
                        p_sys->i_tracks,
                        p_sys->i_tracks ? 's':' ' );
491 492

    /* allocate memory */
Laurent Aimar's avatar
Laurent Aimar committed
493 494
    p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
    memset( p_sys->track, 0, p_sys->i_tracks * sizeof( mp4_track_t ) );
495

496
    /* now process each track and extract all usefull information */
497
    for( i = 0; i < p_sys->i_tracks; i++ )
498
    {
499
        p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
Laurent Aimar's avatar
Laurent Aimar committed
500
        MP4_TrackCreate( p_demux, &p_sys->track[i], p_trak );
501

502
        if( p_sys->track[i].b_ok )
503 504
        {
            char *psz_cat;
505
            switch( p_sys->track[i].fmt.i_cat )
506 507 508 509 510 511 512
            {
                case( VIDEO_ES ):
                    psz_cat = "video";
                    break;
                case( AUDIO_ES ):
                    psz_cat = "audio";
                    break;
513 514 515 516
                case( SPU_ES ):
                    psz_cat = "subtitle";
                    break;

517
                default:
518
                    psz_cat = "unknown";
519 520
                    break;
            }
521

Laurent Aimar's avatar
Laurent Aimar committed
522
            msg_Dbg( p_demux, "adding track[Id 0x%x] %s (%s) language %s",
523 524 525 526
                     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" );
527 528 529
        }
        else
        {
530 531
            msg_Dbg( p_demux, "ignoring track[Id 0x%x]",
                     p_sys->track[i].i_track_ID );
532 533 534
        }

    }
535 536 537
    return VLC_SUCCESS;

error:
538
    if( p_sys->p_root )
Laurent Aimar's avatar
Laurent Aimar committed
539
    {
Laurent Aimar's avatar
Laurent Aimar committed
540
        MP4_BoxFree( p_demux->s, p_sys->p_root );
Laurent Aimar's avatar
Laurent Aimar committed
541
    }
542
    free( p_sys );
543
    return VLC_EGENERIC;
544 545 546
}

/*****************************************************************************
547
 * Demux: read packet and send them to decoders
548 549
 *****************************************************************************
 * TODO check for newly selected track (ie audio upt to now )
550
 *****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
551
static int Demux( demux_t *p_demux )
552
{
Laurent Aimar's avatar
Laurent Aimar committed
553
    demux_sys_t *p_sys = p_demux->p_sys;
554
    unsigned int i_track;
555

556 557 558 559

    unsigned int i_track_selected;

    /* check for newly selected/unselected track */
560 561
    for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks;
         i_track++ )
562
    {
Laurent Aimar's avatar
Laurent Aimar committed
563
        mp4_track_t *tk = &p_sys->track[i_track];
564
        vlc_bool_t b;
Laurent Aimar's avatar
Laurent Aimar committed
565

566 567
        if( !tk->b_ok ||
            ( tk->b_selected && tk->i_sample >= tk->i_sample_count ) )
568
        {
569
            continue;
570
        }
571

572
        es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
573

574 575 576 577 578 579 580 581 582 583 584 585
        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++;
586 587 588 589 590
        }
    }

    if( i_track_selected <= 0 )
    {
Laurent Aimar's avatar
 
Laurent Aimar committed
591 592 593 594 595 596 597 598 599 600 601
        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
602
        msg_Warn( p_demux, "no track selected, exiting..." );
Laurent Aimar's avatar
Laurent Aimar committed
603
        return 0;
604 605
    }

606
    /* first wait for the good time to read a packet */
607
    es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr + 1 );
608

609
    p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
610 611

    /* we will read 100ms for each stream so ...*/
612
    p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
613

614
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
615
    {
Laurent Aimar's avatar
Laurent Aimar committed
616 617
        mp4_track_t *tk = &p_sys->track[i_track];

618
        if( !tk->b_ok || !tk->b_selected || tk->i_sample >= tk->i_sample_count )
619
        {
620
            continue;
621
        }
622

Laurent Aimar's avatar
Laurent Aimar committed
623
        while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
624
        {
625
#if 0
626
            msg_Dbg( p_demux, "tk(%i)=%lld mv=%lld", i_track,
Laurent Aimar's avatar
Laurent Aimar committed
627
                     MP4_TrackGetDTS( p_demux, tk ),
628 629 630
                     MP4_GetMoviePTS( p_sys ) );
#endif

Laurent Aimar's avatar
Laurent Aimar committed
631
            if( MP4_TrackSampleSize( tk ) > 0 )
632
            {
633
                block_t *p_block;
Laurent Aimar's avatar
Laurent Aimar committed
634
                int64_t i_delta;
635

636
                /* go,go go ! */
Laurent Aimar's avatar
Laurent Aimar committed
637
                if( stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
638
                {
639 640
                    msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
                              tk->i_track_ID );
Laurent Aimar's avatar
Laurent Aimar committed
641
                    MP4_TrackUnselect( p_demux, tk );
642 643 644
                    break;
                }

Laurent Aimar's avatar
Laurent Aimar committed
645
                /* now read pes */
646 647
                if( !(p_block =
                         stream_Block( p_demux->s, MP4_TrackSampleSize(tk) )) )
648
                {
649 650
                    msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
                              tk->i_track_ID );
Laurent Aimar's avatar
Laurent Aimar committed
651
                    MP4_TrackUnselect( p_demux, tk );
652 653
                    break;
                }
Gildas Bazin's avatar
 
Gildas Bazin committed
654

Laurent Aimar's avatar
Laurent Aimar committed
655
                if( tk->b_drms && tk->p_drms )
656
                {
657
                    drms_decrypt( tk->p_drms, (uint32_t*)p_block->p_buffer,
658 659
                                  p_block->i_buffer );
                }
660
                else if( tk->fmt.i_cat == SPU_ES )
661
                {
662 663
                    if( tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) &&
                        p_block->i_buffer >= 2 )
664
                    {
665 666 667
                        uint16_t i_size = GetWBE( p_block->p_buffer );

                        if( i_size + 2 <= p_block->i_buffer )
668
                        {
669 670
                            char *p;
                            /* remove the length field, and append a '\0' */
671 672
                            memmove( &p_block->p_buffer[0],
                                     &p_block->p_buffer[2], i_size );
673 674 675 676 677 678 679 680 681 682 683 684 685
                            p_block->p_buffer[i_size] = '\0';
                            p_block->i_buffer = i_size + 1;

                            /* convert \r -> \n */
                            while( ( p = strchr( p_block->p_buffer, '\r' ) ) )
                            {
                                *p = '\n';
                            }
                        }
                        else
                        {
                            /* Invalid */
                            p_block->i_buffer = 0;
686
                        }
687 688
                    }
                }
Laurent Aimar's avatar
Laurent Aimar committed
689 690 691 692 693 694 695 696 697 698
                /* dts */
                p_block->i_dts = MP4_TrackGetDTS( p_demux, tk ) + 1;
                /* pts */
                i_delta = MP4_TrackGetPTSDelta( p_demux, tk );
                if( i_delta >= 0 )
                    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
                    p_block->i_pts = 0;
699

Laurent Aimar's avatar
Laurent Aimar committed
700
                if( !tk->b_drms || ( tk->b_drms && tk->p_drms ) )
Laurent Aimar's avatar
Laurent Aimar committed
701
                    es_out_Send( p_demux->out, tk->p_es, p_block );
Laurent Aimar's avatar
Laurent Aimar committed
702
            }
703

Laurent Aimar's avatar
Laurent Aimar committed
704
            /* Next sample */
Laurent Aimar's avatar
Laurent Aimar committed
705
            if( MP4_TrackNextSample( p_demux, tk ) )
Laurent Aimar's avatar
Laurent Aimar committed
706 707
            {
                break;
708
            }
709 710 711
        }
    }

Laurent Aimar's avatar
Laurent Aimar committed
712
    return 1;
713
}
714
/*****************************************************************************
715
 * Seek: Got to i_date
716 717
******************************************************************************/
static int Seek( demux_t *p_demux, mtime_t i_date )
718
{
Laurent Aimar's avatar
Laurent Aimar committed
719
    demux_sys_t *p_sys = p_demux->p_sys;
720
    unsigned int i_track;
Laurent Aimar's avatar
Laurent Aimar committed
721

722
    /* First update update global time */
723
    p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
Laurent Aimar's avatar
Laurent Aimar committed
724
    p_sys->i_pcr  = i_date;
725

726
    /* Now for each stream try to go to this time */
727
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
728
    {
Laurent Aimar's avatar
Laurent Aimar committed
729
        mp4_track_t *tk = &p_sys->track[i_track];
730
        MP4_TrackSeek( p_demux, tk, i_date );
731
    }
732
    return VLC_SUCCESS;
733
}
734 735

/*****************************************************************************
736
 * Control:
737
 *****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
738
static int Control( demux_t *p_demux, int i_query, va_list args )
739
{
Laurent Aimar's avatar
Laurent Aimar committed
740
    demux_sys_t *p_sys = p_demux->p_sys;
741

Gildas Bazin's avatar
 
Gildas Bazin committed
742
    double f, *pf;
743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760
    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
761 762 763 764 765
            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
766
                return Seek( p_demux, i64 );
Gildas Bazin's avatar
 
Gildas Bazin committed
767 768
            }
            else return VLC_SUCCESS;
769 770 771

        case DEMUX_GET_TIME:
            pi64 = (int64_t*)va_arg( args, int64_t * );
Gildas Bazin's avatar
 
Gildas Bazin committed
772 773 774 775 776 777 778
            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;
779 780 781 782
            return VLC_SUCCESS;

        case DEMUX_SET_TIME:
            i64 = (int64_t)va_arg( args, int64_t );
Laurent Aimar's avatar
Laurent Aimar committed
783
            return Seek( p_demux, i64 );
784 785 786

        case DEMUX_GET_LENGTH:
            pi64 = (int64_t*)va_arg( args, int64_t * );
Gildas Bazin's avatar
 
Gildas Bazin committed
787 788 789 790 791 792 793
            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;
794
            return VLC_SUCCESS;
Gildas Bazin's avatar
 
Gildas Bazin committed
795

796
        case DEMUX_GET_FPS:
Laurent Aimar's avatar
Laurent Aimar committed
797
            msg_Warn( p_demux, "DEMUX_GET_FPS unimplemented !!" );
798
            return VLC_EGENERIC;
Gildas Bazin's avatar
 
Gildas Bazin committed
799

800
        case DEMUX_GET_META:
801 802 803 804 805 806 807 808 809 810
        {
            vlc_meta_t **pp_meta = (vlc_meta_t**)va_arg( args, vlc_meta_t** );
            vlc_meta_t *meta;
            MP4_Box_t  *p_udta   = MP4_BoxGet( p_sys->p_root, "/moov/udta" );
            MP4_Box_t  *p_0xa9xxx;
            if( p_udta == NULL )
            {
                return VLC_EGENERIC;
            }
            *pp_meta = meta = vlc_meta_New();
811 812
            for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
                 p_0xa9xxx = p_0xa9xxx->p_next )
813 814 815
            {
                switch( p_0xa9xxx->i_type )
                {
816
                case FOURCC_0xa9nam: /* Full name */
817 818 819 820 821 822 823 824 825 826 827 828 829 830 831
                    vlc_meta_Add( meta, VLC_META_TITLE,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9aut:
                    vlc_meta_Add( meta, VLC_META_AUTHOR,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9ART:
                    vlc_meta_Add( meta, VLC_META_ARTIST,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
                case FOURCC_0xa9cpy:
                    vlc_meta_Add( meta, VLC_META_COPYRIGHT,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
832
                case FOURCC_0xa9day: /* Creation Date */
833 834 835
                    vlc_meta_Add( meta, VLC_META_DATE,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
836
                case FOURCC_0xa9des: /* Description */
837 838 839
                    vlc_meta_Add( meta, VLC_META_DESCRIPTION,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
840 841 842 843
                case FOURCC_0xa9gen: /* Genre */
                    vlc_meta_Add( meta, VLC_META_GENRE,
                                  p_0xa9xxx->data.p_0xa9xxx->psz_text );
                    break;
844 845

                case FOURCC_0xa9swr:
846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864
                case FOURCC_0xa9inf: /* Information */
                case FOURCC_0xa9alb: /* Album */
                case FOURCC_0xa9dir: /* Director */
                case FOURCC_0xa9dis: /* Disclaimer */
                case FOURCC_0xa9enc: /* Encoded By */
                case FOURCC_0xa9trk: /* Track */
                case FOURCC_0xa9cmt: /* Commment */
                case FOURCC_0xa9url: /* URL */
                case FOURCC_0xa9req: /* Requirements */
                case FOURCC_0xa9fmt: /* Original Format */
                case FOURCC_0xa9dsa: /* Display Source As */
                case FOURCC_0xa9hst: /* Host Computer */
                case FOURCC_0xa9prd: /* Producer */
                case FOURCC_0xa9prf: /* Performers */
                case FOURCC_0xa9ope: /* Original Performer */
                case FOURCC_0xa9src: /* Providers Source Content */
                case FOURCC_0xa9wrt: /* Writer */
                case FOURCC_0xa9com: /* Composer */
                case FOURCC_WLOC:    /* Window Location */
865 866 867 868 869
                    /* TODO one day, but they aren't really meaningfull */
                    break;

                default:
                    break;
870 871 872 873
                }
            }
            return VLC_SUCCESS;
        }
874

875 876 877 878 879
        case DEMUX_GET_TITLE_INFO:
        case DEMUX_SET_NEXT_DEMUX_TIME:
        case DEMUX_SET_GROUP:
            return VLC_EGENERIC;

880
        default:
881
            msg_Warn( p_demux, "control query unimplemented !!!" );
Laurent Aimar's avatar
Laurent Aimar committed
882
            return VLC_EGENERIC;
883 884 885 886 887 888 889
    }
}

/*****************************************************************************
 * Close: frees unused data
 *****************************************************************************/
static void Close ( vlc_object_t * p_this )
890 891
{
    unsigned int i_track;
Laurent Aimar's avatar
Laurent Aimar committed
892 893
    demux_t *  p_demux = (demux_t *)p_this;
    demux_sys_t *p_sys = p_demux->p_sys;
894

Laurent Aimar's avatar
Laurent Aimar committed
895
    msg_Dbg( p_demux, "freeing all memory" );
Laurent Aimar's avatar
Laurent Aimar committed
896

Laurent Aimar's avatar
Laurent Aimar committed
897
    MP4_BoxFree( p_demux->s, p_sys->p_root );
898
    for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
899
    {
Laurent Aimar's avatar
Laurent Aimar committed
900
        MP4_TrackDestroy( p_demux, &p_sys->track[i_track] );
901
    }
902
    FREE( p_sys->track );
903

904
    free( p_sys );
905 906 907
}


908

909 910 911