mp4.c 161 KB
Newer Older
1 2 3
/*****************************************************************************
 * mp4.c : MP4 file input module for vlc
 *****************************************************************************
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
4
 * Copyright (C) 2001-2004, 2010 VLC authors and VideoLAN
5
 *
6
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7
 *
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
8 9 10
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
11
 * (at your option) any later version.
12
 *
13 14
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
15 16
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
17
 *
Jean-Baptiste Kempf's avatar
LGPL  
Jean-Baptiste Kempf committed
18 19 20
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software 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 32
#include "mp4.h"

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

Clément Stenac's avatar
Clément Stenac committed
35
#include <vlc_demux.h>
36
#include <vlc_charset.h>                           /* EnsureUTF8 */
37
#include <vlc_input.h>
38
#include <vlc_aout.h>
39
#include <assert.h>
40

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

47 48 49 50
vlc_module_begin ()
    set_category( CAT_INPUT )
    set_subcategory( SUBCAT_INPUT_DEMUX )
    set_description( N_("MP4 stream demuxer") )
51
    set_shortname( N_("MP4") )
52
    set_capability( "demux", 240 )
53 54
    set_callbacks( Open, Close )
vlc_module_end ()
55

56 57 58
/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
59
static int   Demux   ( demux_t * );
60
static int   DemuxRef( demux_t *p_demux ){ (void)p_demux; return 0;}
61
static int   DemuxFrg( demux_t * );
62
static int   DemuxAsLeaf( demux_t * );
63 64
static int   Seek    ( demux_t *, mtime_t );
static int   Control ( demux_t *, int, va_list );
65

66 67 68 69 70 71
struct demux_sys_t
{
    MP4_Box_t    *p_root;      /* container for the whole file */

    mtime_t      i_pcr;

72
    uint64_t     i_overall_duration; /* Full duration, including all fragments */
73 74
    uint64_t     i_time;         /* time position of the presentation
                                  * in movie timescale */
75
    uint32_t     i_timescale;    /* movie time scale */
76 77 78
    uint64_t     i_duration;     /* movie duration */
    unsigned int i_tracks;       /* number of tracks */
    mp4_track_t  *track;         /* array of track */
79
    float        f_fps;          /* number of frame per seconds */
80

81
    bool         b_fragmented;   /* fMP4 */
82 83
    bool         b_seekable;
    bool         b_fastseekable;
84
    bool         b_seekmode;
85
    bool         b_smooth;       /* Is it Smooth Streaming? */
86

87
    bool            b_index_probed;
88 89 90 91
    bool            b_fragments_probed;
    mp4_fragment_t  moovfragment; /* moov */
    mp4_fragment_t *p_fragments;  /* known fragments (moof following moov) */

92 93 94 95 96 97 98
    struct
    {
        mp4_fragment_t *p_fragment;
        uint32_t        i_current_box_type;
        uint32_t        i_mdatbytesleft;
    } context;

99 100
    /* */
    MP4_Box_t    *p_tref_chap;
101 102 103

    /* */
    input_title_t *p_title;
104 105 106 107 108 109

    /* ASF in MP4 */
    asf_packet_sys_t asfpacketsys;
    uint64_t i_preroll;         /* foobar */
    int64_t  i_preroll_start;
    mp4_track_t *p_current_track; /* avoids matching stream_number */
110 111
};

112
/*****************************************************************************
113
 * Declaration of local function
114
 *****************************************************************************/
115
static void MP4_TrackCreate ( demux_t *, mp4_track_t *, MP4_Box_t  *, bool b_force_enable );
116
static int MP4_frg_TrackCreate( demux_t *, mp4_track_t *, MP4_Box_t *);
Christophe Mutricy's avatar
Christophe Mutricy committed
117
static void MP4_TrackDestroy(  mp4_track_t * );
118

119
static block_t * MP4_Block_Read( demux_t *, const mp4_track_t *, int );
120 121
static void MP4_Block_Send( demux_t *, mp4_track_t *, block_t * );

Laurent Aimar's avatar
Laurent Aimar committed
122 123
static int  MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
124

Laurent Aimar's avatar
Laurent Aimar committed
125
static int  MP4_TrackSeek   ( demux_t *, mp4_track_t *, mtime_t );
126

Laurent Aimar's avatar
Laurent Aimar committed
127
static uint64_t MP4_TrackGetPos    ( mp4_track_t * );
128
static uint32_t MP4_TrackGetReadSize( mp4_track_t *, uint32_t * );
129
static int      MP4_TrackNextSample( demux_t *, mp4_track_t *, uint32_t );
Laurent Aimar's avatar
Laurent Aimar committed
130
static void     MP4_TrackSetELST( demux_t *, mp4_track_t *, int64_t );
Laurent Aimar's avatar
Laurent Aimar committed
131

132 133
static void     MP4_UpdateSeekpoint( demux_t * );

134 135
static MP4_Box_t * MP4_GetTrexByTrackID( MP4_Box_t *p_moov, const uint32_t i_id );

136
static bool AddFragment( demux_t *p_demux, MP4_Box_t *p_moox );
137
static int  ProbeFragments( demux_t *p_demux, bool b_force );
138 139 140 141 142 143 144 145 146 147
static int  ProbeIndex( demux_t *p_demux );
static mp4_fragment_t *GetFragmentByPos( demux_t *p_demux, uint64_t i_pos, bool b_exact );
static mp4_fragment_t *GetFragmentByTime( demux_t *p_demux, const mtime_t i_time );

static int LeafIndexGetMoofPosByTime( demux_t *p_demux, const mtime_t i_target_time,
                                      uint64_t *pi_pos, mtime_t *pi_mooftime );
static mtime_t LeafGetFragmentTimeOffset( demux_t *p_demux, mp4_fragment_t * );
static int LeafGetTrackAndChunkByMOOVPos( demux_t *p_demux, uint64_t *pi_pos,
                                      mp4_track_t **pp_tk, unsigned int *pi_chunk );
static int LeafMapTrafTrunContextes( demux_t *p_demux, MP4_Box_t *p_moof );
148

149 150 151 152 153
/* ASF Handlers */
static asf_track_info_t * MP4ASF_GetTrackInfo( asf_packet_sys_t *p_packetsys, uint8_t i_stream_number );
static void MP4ASF_Send(asf_packet_sys_t *p_packetsys, uint8_t i_stream_number, block_t **pp_frame);
static void MP4ASF_ResetFrames( demux_sys_t *p_sys );

154 155
/* Helpers */

156 157 158 159 160 161 162 163 164 165 166 167 168 169 170
static uint32_t stream_ReadU32( stream_t *s, void *p_read, uint32_t i_toread )
{
    uint32_t i_return = 0;
    if ( i_toread > INT32_MAX )
    {
        i_return = stream_Read( s, p_read, INT32_MAX );
        if ( i_return < INT32_MAX )
            return i_return;
        else
            i_toread -= INT32_MAX;
    }
    i_return += stream_Read( s, (uint8_t *)p_read + i_return, (int32_t) i_toread );
    return i_return;
}

171 172 173 174 175 176 177 178 179 180 181 182
static bool MP4_stream_Tell( stream_t *s, uint64_t *pi_pos )
{
    int64_t i_pos = stream_Tell( s );
    if ( i_pos < 0 )
        return false;
    else
    {
        *pi_pos = (uint64_t) i_pos;
        return true;
    }
}

183 184 185 186 187
static MP4_Box_t * MP4_GetTrexByTrackID( MP4_Box_t *p_moov, const uint32_t i_id )
{
    MP4_Box_t *p_trex = MP4_BoxGet( p_moov, "mvex/trex" );
    while( p_trex )
    {
188 189
        if ( p_trex->i_type == ATOM_trex &&
             BOXDATA(p_trex) && BOXDATA(p_trex)->i_track_ID == i_id )
190 191 192 193 194 195 196
                break;
        else
            p_trex = p_trex->p_next;
    }
    return p_trex;
}

197 198 199 200 201 202 203
static MP4_Box_t * MP4_GetTrakByTrackID( MP4_Box_t *p_moov, const uint32_t i_id )
{
    MP4_Box_t *p_trak = MP4_BoxGet( p_moov, "trak" );
    MP4_Box_t *p_tkhd;
    while( p_trak )
    {
        if( p_trak->i_type == ATOM_trak &&
204
            (p_tkhd = MP4_BoxGet( p_trak, "tkhd" )) && BOXDATA(p_tkhd) &&
205 206 207 208 209 210 211 212
            BOXDATA(p_tkhd)->i_track_ID == i_id )
                break;
        else
            p_trak = p_trak->p_next;
    }
    return p_trak;
}

213
/* Return time in microsecond of a track */
Laurent Aimar's avatar
Laurent Aimar committed
214
static inline int64_t MP4_TrackGetDTS( demux_t *p_demux, mp4_track_t *p_track )
Laurent Aimar's avatar
Laurent Aimar committed
215
{
216 217 218 219 220 221
    demux_sys_t *p_sys = p_demux->p_sys;
    mp4_chunk_t chunk;
    if( p_sys->b_fragmented )
        chunk = *p_track->cchunk;
    else
        chunk = p_track->chunk[p_track->i_chunk];
222 223 224 225

    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
226 227 228

    while( i_sample > 0 )
    {
229
        if( i_sample > chunk.p_sample_count_dts[i_index] )
Laurent Aimar's avatar
Laurent Aimar committed
230
        {
231 232 233
            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
234 235 236 237
            i_index++;
        }
        else
        {
238
            i_dts += i_sample * chunk.p_sample_delta_dts[i_index];
Laurent Aimar's avatar
Laurent Aimar committed
239 240 241 242
            break;
        }
    }

243 244 245
    /* now handle elst */
    if( p_track->p_elst )
    {
Laurent Aimar's avatar
Laurent Aimar committed
246
        demux_sys_t         *p_sys = p_demux->p_sys;
247
        MP4_Box_data_elst_t *elst = p_track->BOXDATA(p_elst);
248 249 250 251 252 253 254 255 256 257

        /* 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 */
258 259
        i_dts += p_track->i_elst_time * p_track->i_timescale /
            p_sys->i_timescale;
260 261 262 263

        if( i_dts < 0 ) i_dts = 0;
    }

264
    return CLOCK_FREQ * i_dts / p_track->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
265
}
266

267
static inline int64_t MP4_TrackGetPTSDelta( demux_t *p_demux, mp4_track_t *p_track )
Laurent Aimar's avatar
Laurent Aimar committed
268
{
269 270 271 272 273 274 275
    demux_sys_t *p_sys = p_demux->p_sys;
    mp4_chunk_t *ck;
    if( p_sys->b_fragmented )
        ck = p_track->cchunk;
    else
        ck = &p_track->chunk[p_track->i_chunk];

Laurent Aimar's avatar
Laurent Aimar committed
276 277 278 279 280 281 282 283 284
    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] )
285
            return ck->p_sample_offset_pts[i_index] * CLOCK_FREQ /
286
                   (int64_t)p_track->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
287 288 289 290 291

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

Laurent Aimar's avatar
Laurent Aimar committed
292 293
static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
{
294
    return CLOCK_FREQ * p_sys->i_time / p_sys->i_timescale;
Laurent Aimar's avatar
Laurent Aimar committed
295
}
296

297 298
static void LoadChapter( demux_t  *p_demux );

299
static int LoadInitFrag( demux_t *p_demux )
300 301 302
{
    demux_sys_t *p_sys = p_demux->p_sys;

303
    if( p_sys->b_smooth ) /* Smooth Streaming */
304 305 306 307 308 309 310 311 312 313 314 315 316 317 318
    {
        if( ( p_sys->p_root = MP4_BoxGetSmooBox( p_demux->s ) ) == NULL )
        {
            goto LoadInitFragError;
        }
        else
        {
            MP4_Box_t *p_smoo = MP4_BoxGet( p_sys->p_root, "uuid" );
            if( !p_smoo || CmpUUID( &p_smoo->i_uuid, &SmooBoxUUID ) )
                goto LoadInitFragError;
            /* Get number of tracks */
            p_sys->i_tracks = 0;
            for( int i = 0; i < 3; i++ )
            {
                MP4_Box_t *p_stra = MP4_BoxGet( p_smoo, "uuid[%d]", i );
319
                if( p_stra && BOXDATA(p_stra) && BOXDATA(p_stra)->i_track_ID )
320 321
                    p_sys->i_tracks++;
                /* Get timescale and duration of the video track; */
322
                if( p_sys->i_timescale == 0 )
323
                {
324 325 326 327 328 329
                    if ( p_stra && BOXDATA(p_stra) )
                    {
                        p_sys->i_timescale = BOXDATA(p_stra)->i_timescale;
                        p_sys->i_duration = BOXDATA(p_stra)->i_duration;
                        p_sys->i_overall_duration = BOXDATA(p_stra)->i_duration;
                    }
330 331 332 333 334
                    if( p_sys->i_timescale == 0 )
                    {
                        msg_Err( p_demux, "bad timescale" );
                        goto LoadInitFragError;
                    }
335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388
                }
            }
        }
    }
    else
    {
        /* Load all boxes ( except raw data ) */
        if( ( p_sys->p_root = MP4_BoxGetRoot( p_demux->s ) ) == NULL )
        {
            goto LoadInitFragError;
        }
    }
    return VLC_SUCCESS;

LoadInitFragError:
    msg_Warn( p_demux, "MP4 plugin discarded (not a valid initialization chunk)" );
    return VLC_EGENERIC;
}

static int InitTracks( demux_t *p_demux )
{
    demux_sys_t *p_sys = p_demux->p_sys;

    p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
    if( p_sys->track == NULL )
        return VLC_EGENERIC;

    if( p_sys->b_fragmented )
    {
        mp4_track_t *p_track;
        for( uint16_t i = 0; i < p_sys->i_tracks; i++ )
        {
            p_track = &p_sys->track[i];
            p_track->cchunk = calloc( 1, sizeof( mp4_chunk_t ) );
            if( unlikely( !p_track->cchunk ) )
            {
                free( p_sys->track );
                return VLC_EGENERIC;
            }
        }
    }
    return VLC_SUCCESS;
}

static void CreateTracksFromSmooBox( demux_t *p_demux )
{
    demux_sys_t *p_sys = p_demux->p_sys;

    MP4_Box_t *p_smoo = MP4_BoxGet( p_sys->p_root, "uuid" );
    mp4_track_t *p_track;
    int j = 0;
    for( int i = 0; i < 3; i++ )
    {
        MP4_Box_t *p_stra = MP4_BoxGet( p_smoo, "uuid[%d]", i );
389
        if( !p_stra || !BOXDATA(p_stra) || BOXDATA(p_stra)->i_track_ID == 0 )
390 391 392 393 394 395 396 397 398 399
            continue;
        else
        {
            p_track = &p_sys->track[j]; j++;
            MP4_frg_TrackCreate( p_demux, p_track, p_stra );
            p_track->p_es = es_out_Add( p_demux->out, &p_track->fmt );
        }
    }
}

400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455
static block_t * MP4_EIA608_Convert( block_t * p_block )
{
    /* Rebuild codec data from encap */
    size_t i_copied = 0;
    size_t i_remaining = p_block->i_buffer;
    uint32_t i_bytes = 0;
    block_t *p_newblock;

    if ( i_remaining < 10 ||
         !(i_bytes = GetDWBE(p_block->p_buffer)) ||
         (i_bytes + 8 > i_remaining) ||
         memcmp("cdat", &p_block->p_buffer[4], 4) ||
         !(p_newblock = block_Alloc( i_remaining * 3 - 8 )) )
    {
        p_block->i_buffer = 0;
        return p_block;
    }

    uint8_t *p_write = p_newblock->p_buffer;
    uint8_t *p_read = &p_block->p_buffer[8];
    i_bytes -= 8;
    i_remaining -= 8;

    do
    {
        p_write[i_copied++] = 0; /* cc1 == field 0 */
        p_write[i_copied++] = p_read[0];
        p_write[i_copied++] = p_read[1];
        p_read += 2;
        i_bytes -= 2;
        i_remaining -= 2;
    } while( i_bytes >= 2 );

    if ( i_remaining >= 10 &&
         (i_bytes = GetDWBE(p_read)) &&
         (i_bytes + 8 <= i_remaining) &&
         !memcmp("cdt2", &p_read[4], 4) )
    {
        p_read += 8;
        i_bytes -= 8;
        i_remaining -= 8;
        do
        {
            p_write[i_copied++] = 0; /* cc1 == field 0 */
            p_write[i_copied++] = p_read[0];
            p_write[i_copied++] = p_read[1];
            p_read += 2;
            i_bytes -= 2;
        } while( i_bytes >= 2 );
    }

    block_Release( p_block );
    p_newblock->i_buffer = i_copied;
    return p_newblock;
}

456 457 458 459 460 461 462 463 464 465 466 467 468 469 470
static block_t * MP4_Block_Read( demux_t *p_demux, const mp4_track_t *p_track, int i_size )
{
    block_t *p_block = stream_Block( p_demux->s, i_size );
    if ( !p_block )
        return NULL;

    /* might have some encap */
    if( p_track->fmt.i_cat == SPU_ES )
    {
        switch( p_track->fmt.i_codec )
        {
            case VLC_CODEC_TX3G:
            case VLC_CODEC_SPU:
            /* accept as-is */
            break;
471 472 473
            case VLC_CODEC_EIA608_1:
                p_block = MP4_EIA608_Convert( p_block );
            break;
474 475 476 477 478 479 480 481 482
        default:
            p_block->i_buffer = 0;
            break;
        }
    }

    return p_block;
}

483 484 485 486 487 488 489 490 491
static void MP4_Block_Send( demux_t *p_demux, mp4_track_t *p_track, block_t *p_block )
{
    if ( p_track->b_chans_reorder && aout_BitsPerSample( p_track->fmt.i_codec ) )
    {
        aout_ChannelReorder( p_block->p_buffer, p_block->i_buffer,
                             p_track->fmt.audio.i_channels,
                             p_track->rgi_chans_reordering,
                             p_track->fmt.i_codec );
    }
492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511

    /* ASF packets in mov */
    if( p_track->p_asf )
    {
        /* Fake a new stream from MP4 block */
        stream_t *p_stream = p_demux->s;
        p_demux->s = stream_MemoryNew( p_demux, p_block->p_buffer, p_block->i_buffer, true );
        if ( p_demux->s )
        {
            p_track->i_dts_backup = p_block->i_dts;
            p_track->i_pts_backup = p_block->i_pts;
            /* And demux it as ASF packet */
            DemuxASFPacket( &p_demux->p_sys->asfpacketsys, p_block->i_buffer, p_block->i_buffer );
            stream_Delete(p_demux->s);
        }
        block_Release(p_block);
        p_demux->s = p_stream;
    }
    else
        es_out_Send( p_demux->out, p_track->p_es, p_block );
512 513
}

514
/*****************************************************************************
515
 * Open: check file and initializes MP4 structures
516
 *****************************************************************************/
517
static int Open( vlc_object_t * p_this )
518
{
Laurent Aimar's avatar
Laurent Aimar committed
519
    demux_t  *p_demux = (demux_t *)p_this;
520
    demux_sys_t     *p_sys;
521

Christophe Mutricy's avatar
Christophe Mutricy committed
522
    const uint8_t   *p_peek;
523

524
    MP4_Box_t       *p_ftyp;
525
    MP4_Box_t       *p_rmra;
526 527
    MP4_Box_t       *p_mvhd;
    MP4_Box_t       *p_trak;
528

529
    unsigned int    i;
530
    bool      b_enabled_es;
531

532
    /* A little test to see if it could be a mp4 */
533
    if( stream_Peek( p_demux->s, &p_peek, 11 ) < 11 ) return VLC_EGENERIC;
534

535
    switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
536
    {
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
537 538 539 540 541 542 543 544
        case ATOM_moov:
        case ATOM_foov:
        case ATOM_moof:
        case ATOM_mdat:
        case ATOM_udta:
        case ATOM_free:
        case ATOM_skip:
        case ATOM_wide:
545
        case ATOM_uuid:
546
        case VLC_FOURCC( 'p', 'n', 'o', 't' ):
547
            break;
548 549 550 551 552
        case ATOM_ftyp:
            /* We don't yet support f4v, but avformat does. */
            if( p_peek[8] == 'f' && p_peek[9] == '4' && p_peek[10] == 'v' )
                return VLC_EGENERIC;
            break;
553
         default:
554
            return VLC_EGENERIC;
555
    }
556

557 558 559 560 561
    /* create our structure that will contains all data */
    p_sys = calloc( 1, sizeof( demux_sys_t ) );
    if ( !p_sys )
        return VLC_EGENERIC;

562
    /* I need to seek */
563 564
    stream_Control( p_demux->s, STREAM_CAN_SEEK, &p_sys->b_seekable );
    if( !p_sys->b_seekable )
565
    {
566
        msg_Warn( p_demux, "MP4 plugin discarded (not seekable)" );
567
        free( p_sys );
568
        return VLC_EGENERIC;
569
    }
570
    stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &p_sys->b_fastseekable );
571
    p_sys->b_seekmode = p_sys->b_fastseekable;
572

573
    /*Set exported functions */
Laurent Aimar's avatar
Laurent Aimar committed
574 575
    p_demux->pf_demux = Demux;
    p_demux->pf_control = Control;
576

577
    p_demux->p_sys = p_sys;
578

579 580 581
    if( stream_Peek( p_demux->s, &p_peek, 24 ) < 24 ) return VLC_EGENERIC;
    if( !CmpUUID( (UUID_t *)(p_peek + 8), &SmooBoxUUID ) )
    {
582
        p_sys->b_smooth = true;
583 584 585
        p_sys->b_fragmented = true;
    }

586
    if( LoadInitFrag( p_demux ) != VLC_SUCCESS )
587 588
        goto error;

589
    if( MP4_BoxCount( p_sys->p_root, "/moov/mvex" ) > 0 )
590
    {
591 592 593 594
        if ( p_sys->b_seekable )
        {
            /* Probe remaining to check if there's really fragments
               or if that file is just ready to append fragments */
595
            ProbeFragments( p_demux, false );
596 597 598 599
            p_sys->b_fragmented = !!MP4_BoxCount( p_sys->p_root, "/moof" );
        }
        else
            p_sys->b_fragmented = true;
600 601 602

        if ( p_sys->b_fragmented && !p_sys->i_overall_duration )
            ProbeFragments( p_demux, true );
603
    }
604

605 606 607 608 609 610 611
    if ( !p_sys->moovfragment.p_moox )
        AddFragment( p_demux, MP4_BoxGet( p_sys->p_root, "/moov" ) );

    /* we always need a moov entry, but smooth has a workaround */
    if ( !p_sys->moovfragment.p_moox && !p_sys->b_smooth )
        goto error;

612
    if ( p_sys->b_smooth )
613 614 615
    {
        p_demux->pf_demux = DemuxFrg;
    }
616 617 618 619
    else if( p_sys->b_fragmented )
    {
        p_demux->pf_demux = DemuxAsLeaf;
    }
620

621
    if( p_sys->b_smooth )
622 623 624 625 626 627
    {
        if( InitTracks( p_demux ) != VLC_SUCCESS )
            goto error;
        CreateTracksFromSmooBox( p_demux );
        return VLC_SUCCESS;
    }
628

Laurent Aimar's avatar
Laurent Aimar committed
629
    MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
630

631
    if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
632
    {
633
        switch( BOXDATA(p_ftyp)->i_major_brand )
634
        {
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
635
            case( ATOM_isom ):
Laurent Aimar's avatar
Laurent Aimar committed
636
                msg_Dbg( p_demux,
637
                         "ISO Media file (isom) version %d.",
638
                         BOXDATA(p_ftyp)->i_minor_version );
639
                break;
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
640
            case( ATOM_3gp4 ):
641 642 643 644 645
            case( VLC_FOURCC( '3', 'g', 'p', '5' ) ):
            case( VLC_FOURCC( '3', 'g', 'p', '6' ) ):
            case( VLC_FOURCC( '3', 'g', 'p', '7' ) ):
                msg_Dbg( p_demux, "3GPP Media file Release: %c",
#ifdef WORDS_BIGENDIAN
646
                        BOXDATA(p_ftyp)->i_major_brand
647
#else
648
                        BOXDATA(p_ftyp)->i_major_brand >> 24
649 650 651 652 653
#endif
                        );
                break;
            case( VLC_FOURCC( 'q', 't', ' ', ' ') ):
                msg_Dbg( p_demux, "Apple QuickTime file" );
654
                break;
655 656 657
            case( VLC_FOURCC( 'i', 's', 'm', 'l') ):
                msg_Dbg( p_demux, "PIFF (= isml = fMP4) file" );
                break;
658
            default:
Laurent Aimar's avatar
Laurent Aimar committed
659
                msg_Dbg( p_demux,
660
                         "unrecognized major file specification (%4.4s).",
661
                          (char*)&BOXDATA(p_ftyp)->i_major_brand );
662 663 664 665 666
                break;
        }
    }
    else
    {
Laurent Aimar's avatar
Laurent Aimar committed
667
        msg_Dbg( p_demux, "file type box missing (assuming ISO Media file)" );
668 669 670
    }

    /* the file need to have one moov box */
671 672
    p_sys->moovfragment.p_moox = MP4_BoxGet( p_sys->p_root, "/moov", 0 );
    if( !p_sys->moovfragment.p_moox )
673
    {
674
        MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
675 676 677

        if( !p_foov )
        {
678 679
            msg_Err( p_demux, "MP4 plugin discarded (no moov,foov,moof box)" );
            goto error;
680 681
        }
        /* we have a free box as a moov, rename it */
Jean-Baptiste Kempf's avatar
Jean-Baptiste Kempf committed
682
        p_foov->i_type = ATOM_moov;
683
        p_sys->moovfragment.p_moox = p_foov;
684 685
    }

686
    if( ( p_rmra = MP4_BoxGet( p_sys->p_root,  "/moov/rmra" ) ) )
687 688 689 690
    {
        int        i_count = MP4_BoxCount( p_rmra, "rmda" );
        int        i;

Laurent Aimar's avatar
Laurent Aimar committed
691
        msg_Dbg( p_demux, "detected playlist mov file (%d ref)", i_count );
692

693
        input_thread_t *p_input = demux_GetParentInput( p_demux );
694
        input_item_t *p_current = input_GetItem( p_input );
695

696 697
        input_item_node_t *p_subitems = input_item_node_Create( p_current );

698
        for( i = 0; i < i_count; i++ )
699
        {
700 701 702
            MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
            char      *psz_ref;
            uint32_t  i_ref_type;
703

704
            if( !p_rdrf || !BOXDATA(p_rdrf) || !( psz_ref = strdup( BOXDATA(p_rdrf)->psz_ref ) ) )
705
            {
706 707
                continue;
            }
708
            i_ref_type = BOXDATA(p_rdrf)->i_ref_type;
709

710 711 712 713 714 715
            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" ) )
716
                {
717
                    msg_Dbg( p_demux, "ignoring pseudo ref =`%s'", psz_ref );
718 719
                    continue;
                }
720 721
                if( !strncmp( psz_ref, "http://", 7 ) ||
                    !strncmp( psz_ref, "rtsp://", 7 ) )
722
                {
723
                    ;
724 725 726
                }
                else
                {
727
                    char *psz_absolute;
728
                    char *psz_path = strdup( p_demux->psz_location );
729 730 731 732
                    char *end = strrchr( psz_path, '/' );
                    if( end ) end[1] = '\0';
                    else *psz_path = '\0';

Christophe Mutricy's avatar
Christophe Mutricy committed
733 734
                    if( asprintf( &psz_absolute, "%s://%s%s",
                                  p_demux->psz_access, psz_path, psz_ref ) < 0 )
Rémi Duraffort's avatar
Rémi Duraffort committed
735 736 737
                    {
                        free( psz_ref );
                        free( psz_path );
François Cartegnie's avatar
François Cartegnie committed
738
                        input_item_node_Delete( p_subitems );
Rémi Duraffort's avatar
Rémi Duraffort committed
739
                        vlc_object_release( p_input) ;
Christophe Mutricy's avatar
Christophe Mutricy committed
740
                        return VLC_ENOMEM;
Rémi Duraffort's avatar
Rémi Duraffort committed
741
                    }
742 743 744 745

                    free( psz_ref );
                    psz_ref = psz_absolute;
                    free( psz_path );
746
                }
747
                msg_Dbg( p_demux, "adding ref = `%s'", psz_ref );
748 749 750 751
                input_item_t *p_item = input_item_New( psz_ref, NULL );
                input_item_CopyOptions( p_current, p_item );
                input_item_node_AppendItem( p_subitems, p_item );
                vlc_gc_decref( p_item );
752
            }
753
            else
754
            {
755
                msg_Err( p_demux, "unknown ref type=%4.4s FIXME (send a bug report)",
756
                         (char*)&BOXDATA(p_rdrf)->i_ref_type );
757
            }
758
            free( psz_ref );
759
        }
760
        input_item_node_PostAndDelete( p_subitems );
761
        vlc_object_release( p_input );
762 763
    }

764
    if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
765
    {
766 767
        if( !p_rmra )
        {
Laurent Aimar's avatar
Laurent Aimar committed
768
            msg_Err( p_demux, "cannot find /moov/mvhd" );
769
            goto error;
770 771 772
        }
        else
        {
Laurent Aimar's avatar
Laurent Aimar committed
773 774
            msg_Warn( p_demux, "cannot find /moov/mvhd (pure ref file)" );
            p_demux->pf_demux = DemuxRef;
775
            return VLC_SUCCESS;
776
        }
777 778 779
    }
    else
    {
780
        p_sys->i_timescale = BOXDATA(p_mvhd)->i_timescale;
781 782 783 784 785
        if( p_sys->i_timescale == 0 )
        {
            msg_Err( p_this, "bad timescale" );
            goto error;
        }
786
    }
787

788
    if ( p_sys->i_overall_duration == 0 )
789
    {
790
        /* Try in mehd if fragmented */
791
        MP4_Box_t *p_mehd = MP4_BoxGet( p_demux->p_sys->p_root, "moov/mvex/mehd");
792
        if ( p_mehd && p_mehd->data.p_mehd )
793 794 795
            p_sys->i_overall_duration = p_mehd->data.p_mehd->i_fragment_duration;
        else
            p_sys->i_overall_duration = p_sys->moovfragment.i_duration;
796 797
    }

798
    if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
799
    {
Laurent Aimar's avatar
Laurent Aimar committed
800
        msg_Err( p_demux, "cannot find any /moov/trak" );
801
        goto error;
802
    }
803
    msg_Dbg( p_demux, "found %d track%c",
804 805
                        p_sys->i_tracks,
                        p_sys->i_tracks ? 's':' ' );
806

807
    if( InitTracks( p_demux ) != VLC_SUCCESS )
808
        goto error;
809

810 811
    /* Search the first chap reference (like quicktime) and
     * check that at least 1 stream is enabled */
812
    p_sys->p_tref_chap = NULL;
813
    b_enabled_es = false;
814 815 816 817
    for( i = 0; i < p_sys->i_tracks; i++ )
    {
        MP4_Box_t *p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );

818 819

        MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
820
        if( p_tkhd && BOXDATA(p_tkhd) && (BOXDATA(p_tkhd)->i_flags&MP4_TRACK_ENABLED) )
821 822 823
            b_enabled_es = true;

        MP4_Box_t *p_chap = MP4_BoxGet( p_trak, "tref/chap", i );
824 825
        if( p_chap && p_chap->data.p_tref_generic &&
            p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
826
            p_sys->p_tref_chap = p_chap;
827 828
    }

Rémi Denis-Courmont's avatar
Typos  
Rémi Denis-Courmont committed
829
    /* now process each track and extract all useful information */
830
    for( i = 0; i < p_sys->i_tracks; i++ )
831
    {
832
        p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
833
        MP4_TrackCreate( p_demux, &p_sys->track[i], p_trak, !b_enabled_es );
834

835
        if( p_sys->track[i].b_ok && !p_sys->track[i].b_chapter )
836
        {
Laurent Aimar's avatar
Laurent Aimar committed
837
            const char *psz_cat;
838
            switch( p_sys->track[i].fmt.i_cat )
839 840 841 842 843 844 845
            {
                case( VIDEO_ES ):
                    psz_cat = "video";
                    break;
                case( AUDIO_ES ):
                    psz_cat = "audio";
                    break;
846 847 848 849
                case( SPU_ES ):
                    psz_cat = "subtitle";
                    break;

850
                default:
851
                    psz_cat = "unknown";
852 853
                    break;
            }
854

Laurent Aimar's avatar
Laurent Aimar committed
855
            msg_Dbg( p_demux, "adding track[Id 0x%x] %s (%s) language %s",
856 857 858 859
                     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" );
860
        }
861 862 863 864 865 866 867
        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" );
        }
868 869
        else
        {
870 871
            msg_Dbg( p_demux, "ignoring track[Id 0x%x]",
                     p_sys->track[i].i_track_ID );
872 873
        }
    }
874

875 876 877
    mp4_fragment_t *p_fragment = &p_sys->moovfragment;
    while ( p_fragment )
    {
878
        msg_Dbg( p_demux, "fragment offset %"PRId64", data %"PRIu64"<->%"PRIu64", duration %"PRId64,
879
                 p_fragment->p_moox->i_pos, p_fragment->i_chunk_range_min_offset,
880
                 p_fragment->i_chunk_range_max_offset, CLOCK_FREQ * p_fragment->i_duration / p_sys->i_timescale );
881 882 883
        p_fragment = p_fragment->p_next;
    }

884 885
    /* */
    LoadChapter( p_demux );
886

887 888 889 890 891 892 893 894 895
    p_sys->asfpacketsys.p_demux = p_demux;
    p_sys->asfpacketsys.pi_preroll = &p_sys->i_preroll;
    p_sys->asfpacketsys.pi_preroll_start = &p_sys->i_preroll_start;
    p_sys->asfpacketsys.pf_doskip = NULL;
    p_sys->asfpacketsys.pf_send = MP4ASF_Send;
    p_sys->asfpacketsys.pf_gettrackinfo = MP4ASF_GetTrackInfo;
    p_sys->asfpacketsys.pf_updatetime = NULL;
    p_sys->asfpacketsys.pf_setaspectratio = NULL;

896 897 898
    return VLC_SUCCESS;

error:
899
    if( p_sys->p_root )
Laurent Aimar's avatar
Laurent Aimar committed
900
    {
Laurent Aimar's avatar
Laurent Aimar committed
901
        MP4_BoxFree( p_demux->s, p_sys->p_root );
Laurent Aimar's avatar
Laurent Aimar committed
902
    }
903
    free( p_sys );
904
    return VLC_EGENERIC;
905 906 907
}

/*****************************************************************************
908
 * Demux: read packet and send them to decoders
909 910
 *****************************************************************************
 * TODO check for newly selected track (ie audio upt to now )
911
 *****************************************************************************/
Laurent Aimar's avatar
Laurent Aimar committed
912
static int Demux( demux_t *p_demux )
913
{
Laurent Aimar's avatar
Laurent Aimar committed
914
    demux_sys_t *p_sys = p_demux->p_sys;
915
    unsigned int i_track;
916

917 918 919 920

    unsigned int i_track_selected;

    /* check for newly selected/unselected track */
921 922
    for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks;
         i_track++ )
923
    {
Laurent Aimar's avatar
Laurent Aimar committed
924
        mp4_track_t *tk = &p_sys->track[i_track];
925
        bool b;
Laurent Aimar's avatar
Laurent Aimar committed
926

927
        if( !tk->b_ok || tk->b_chapter ||
928
            ( tk->b_selected && tk->i_sample >= tk->i_sample_count ) )
929
        {
930
            continue;
931
        }
932

933
        es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
934

935 936 937 938 939 940 941 942 943 944 945 946
        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++;
947 948 949 950 951
        }
    }

    if( i_track_selected <= 0 )
    {
Laurent Aimar's avatar
 
Laurent Aimar committed
952 953 954
        p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
        if( p_sys->i_timescale > 0 )
        {
955
            int64_t i_length = CLOCK_FREQ *
François Cartegnie's avatar