git.sesse.net Git - vlc/blob - modules/demux/asf/asf.c

   1 /*****************************************************************************
   2  * asf.c : ASFv01 file input module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001 VideoLAN
   5  * $Id: asf.c,v 1.15 2003/01/11 18:10:49 fenrir Exp $
   6  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26 #include <stdlib.h>                                      /* malloc(), free() */
  27 #include <string.h>                                              /* strdup() */
  28 #include <errno.h>
  29 #include <sys/types.h>
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc/input.h>
  33
  34 #include "libasf.h"
  35 #include "asf.h"
  36
  37 /*****************************************************************************
  38  * Local prototypes
  39  *****************************************************************************/
  40 static int    Activate   ( vlc_object_t * );
  41 static void   Deactivate ( vlc_object_t * );
  42 static int    Demux      ( input_thread_t * );
  43
  44 /*****************************************************************************
  45  * Module descriptor
  46  *****************************************************************************/
  47 vlc_module_begin();
  48     set_description( "ASF v1.0 demuxer (file only)" );
  49     set_capability( "demux", 200 );
  50     set_callbacks( Activate, Deactivate );
  51     add_shortcut( "asf" );
  52 vlc_module_end();
  53
  54 static uint16_t GetWLE( uint8_t *p_buff )
  55 {
  56     return( (p_buff[0]) + ( p_buff[1] <<8 ) );
  57 }
  58 static uint32_t GetDWLE( uint8_t *p_buff )
  59 {
  60     return( p_buff[0] + ( p_buff[1] <<8 ) +
  61             ( p_buff[2] <<16 ) + ( p_buff[3] <<24 ) );
  62 }
  63
  64 /*****************************************************************************
  65  * Activate: check file and initializes ASF structures
  66  *****************************************************************************/
  67 static int Activate( vlc_object_t * p_this )
  68 {
  69     input_thread_t  *p_input = (input_thread_t *)p_this;
  70     uint8_t         *p_peek;
  71     guid_t          guid;
  72
  73     demux_sys_t     *p_demux;
  74     int             i_stream;
  75
  76     /* Initialize access plug-in structures. */
  77     if( p_input->i_mtu == 0 )
  78     {
  79         /* Improve speed. */
  80         p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE;
  81     }
  82
  83     p_input->pf_demux = Demux;
  84
  85     /* a little test to see if it could be a asf stream */
  86     if( input_Peek( p_input, &p_peek, 16 ) < 16 )
  87     {
  88         msg_Warn( p_input, "ASF v1.0 plugin discarded (cannot peek)" );
  89         return( -1 );
  90     }
  91     GetGUID( &guid, p_peek );
  92     if( !CmpGUID( &guid, &asf_object_header_guid ) )
  93     {
  94         msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
  95         return( -1 );
  96     }
  97
  98     /* create our structure that will contains all data */
  99     if( !( p_input->p_demux_data =
 100                 p_demux = malloc( sizeof( demux_sys_t ) ) ) )
 101     {
 102         msg_Err( p_input, "out of memory" );
 103         return( -1 );
 104     }
 105     memset( p_demux, 0, sizeof( demux_sys_t ) );
 106     p_demux->i_first_pts = -1;
 107
 108     /* Now load all object ( except raw data ) */
 109     if( !ASF_ReadObjectRoot( p_input, &p_demux->root, p_input->stream.b_seekable ) )
 110     {
 111         msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
 112         free( p_demux );
 113         return( -1 );
 114     }
 115     /* Check if we have found all mandatory asf object */
 116     if( !p_demux->root.p_hdr || !p_demux->root.p_data )
 117     {
 118         ASF_FreeObjectRoot( p_input, &p_demux->root );
 119         free( p_demux );
 120         msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
 121         return( -1 );
 122     }
 123
 124     if( !( p_demux->p_fp = ASF_FindObject( p_demux->root.p_hdr,
 125                                     &asf_object_file_properties_guid, 0 ) ) )
 126     {
 127         ASF_FreeObjectRoot( p_input, &p_demux->root );
 128         free( p_demux );
 129         msg_Warn( p_input, "ASF v1.0 plugin discarded (missing file_properties object)" );
 130         return( -1 );
 131     }
 132
 133     if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
 134     {
 135         ASF_FreeObjectRoot( p_input, &p_demux->root );
 136         free( p_demux );
 137         msg_Warn( p_input, "ASF v1.0 plugin discarded (invalid file_properties object)" );
 138         return( -1 );
 139     }
 140
 141     p_demux->i_streams = ASF_CountObject( p_demux->root.p_hdr,
 142                                           &asf_object_stream_properties_guid );
 143     if( !p_demux->i_streams )
 144     {
 145         ASF_FreeObjectRoot( p_input, &p_demux->root );
 146         free( p_demux );
 147         msg_Warn( p_input, "ASF plugin discarded (cannot find any stream!)" );
 148         return( -1 );
 149     }
 150     else
 151     {
 152         input_info_category_t *p_cat = input_InfoCategory( p_input, "Asf" );
 153         msg_Dbg( p_input, "found %d streams", p_demux->i_streams );
 154         input_AddInfo( p_cat, "Number of streams", "%d" , p_demux->i_streams );
 155     }
 156
 157     /*  create one program */
 158     vlc_mutex_lock( &p_input->stream.stream_lock );
 159     if( input_InitStream( p_input, 0 ) == -1)
 160     {
 161         vlc_mutex_unlock( &p_input->stream.stream_lock );
 162         msg_Err( p_input, "cannot init stream" );
 163         return( -1 );
 164     }
 165     if( input_AddProgram( p_input, 0, 0) == NULL )
 166     {
 167         vlc_mutex_unlock( &p_input->stream.stream_lock );
 168         msg_Err( p_input, "cannot add program" );
 169         return( -1 );
 170     }
 171     p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 172     p_input->stream.i_mux_rate = 0 ; /* FIXME */
 173     vlc_mutex_unlock( &p_input->stream.stream_lock );
 174
 175     for( i_stream = 0; i_stream < p_demux->i_streams; i_stream ++ )
 176     {
 177         asf_stream_t    *p_stream;
 178         asf_object_stream_properties_t *p_sp;
 179         char psz_cat[sizeof("Stream ")+10];
 180         input_info_category_t *p_cat;
 181         sprintf( psz_cat, "Stream %d", i_stream );
 182         p_cat = input_InfoCategory( p_input, psz_cat);
 183
 184         p_sp = ASF_FindObject( p_demux->root.p_hdr,
 185                                &asf_object_stream_properties_guid,
 186                                i_stream );
 187
 188         p_stream =
 189             p_demux->stream[p_sp->i_stream_number] =
 190                 malloc( sizeof( asf_stream_t ) );
 191         memset( p_stream, 0, sizeof( asf_stream_t ) );
 192         p_stream->p_sp = p_sp;
 193
 194         vlc_mutex_lock( &p_input->stream.stream_lock );
 195         p_stream->p_es =
 196             input_AddES( p_input,
 197                          p_input->stream.p_selected_program,
 198                          p_sp->i_stream_number,
 199                          0 );
 200
 201         vlc_mutex_unlock( &p_input->stream.stream_lock );
 202         if( CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_audio ) )
 203         {
 204             int i_codec;
 205             if( p_sp->p_type_specific_data )
 206             {
 207                 i_codec = GetWLE( p_sp->p_type_specific_data );
 208             }
 209             else
 210             {
 211                 i_codec = -1;
 212             }
 213
 214             p_stream->i_cat = AUDIO_ES;
 215             input_AddInfo( p_cat, "Type", "Audio" );
 216             msg_Dbg( p_input,
 217                     "adding new audio stream(codec:0x%x,ID:%d)",
 218                     i_codec,
 219                     p_sp->i_stream_number );
 220             switch( i_codec )
 221             {
 222                 case( 0x01 ):
 223                     p_stream->p_es->i_fourcc =
 224                         VLC_FOURCC( 'a', 'r', 'a', 'w' );
 225                     break;
 226                 case( 0x50 ):
 227                 case( 0x55 ):
 228                     p_stream->p_es->i_fourcc =
 229                         VLC_FOURCC( 'm','p','g','a' );
 230                     break;
 231                 case( 0x2000 ):
 232                     p_stream->p_es->i_fourcc =
 233                         VLC_FOURCC( 'a','5','2',' ' );
 234                     break;
 235                 case( 0x160 ):
 236                     p_stream->p_es->i_fourcc =
 237                         VLC_FOURCC( 'w','m','a','1' );
 238                     break;
 239                 case( 0x161 ):
 240                     p_stream->p_es->i_fourcc =
 241                         VLC_FOURCC( 'w','m','a','2' );
 242                     break;
 243                 default:
 244                     p_stream->p_es->i_fourcc =
 245                         VLC_FOURCC( 'm','s',(i_codec >> 8)&0xff,i_codec&0xff );
 246             }
 247             input_AddInfo( p_cat, "Codec", "%.4s", (char*)&p_stream->p_es->i_fourcc );
 248             if( p_sp->i_type_specific_data_length > 0 )
 249             {
 250                 WAVEFORMATEX    *p_wf;
 251                 size_t          i_size;
 252                 uint8_t         *p_data;
 253
 254                 i_size = p_sp->i_type_specific_data_length;
 255
 256                 p_wf = malloc( i_size );
 257                 p_stream->p_es->p_waveformatex = (void*)p_wf;
 258                 p_data = p_sp->p_type_specific_data;
 259
 260                 p_wf->wFormatTag        = GetWLE( p_data );
 261                 p_wf->nChannels         = GetWLE( p_data + 2 );
 262                 input_AddInfo( p_cat, "Channels", "%d", p_wf->nChannels );
 263                 p_wf->nSamplesPerSec    = GetDWLE( p_data + 4 );
 264                 input_AddInfo( p_cat, "Sample rate", "%d", p_wf->nSamplesPerSec );
 265                 p_wf->nAvgBytesPerSec   = GetDWLE( p_data + 8 );
 266                 input_AddInfo( p_cat, "Avg. byterate", "%d", p_wf->nAvgBytesPerSec );
 267                 p_wf->nBlockAlign       = GetWLE( p_data + 12 );
 268                 p_wf->wBitsPerSample    = GetWLE( p_data + 14 );
 269                 input_AddInfo( p_cat, "Bits Per Sample", "%d", p_wf->wBitsPerSample );
 270                 p_wf->cbSize            = __MAX( 0,
 271                                               i_size - sizeof( WAVEFORMATEX ));
 272                 if( i_size > sizeof( WAVEFORMATEX ) )
 273                 {
 274                     memcpy( (uint8_t*)p_wf + sizeof( WAVEFORMATEX ),
 275                             p_data + sizeof( WAVEFORMATEX ),
 276                             i_size - sizeof( WAVEFORMATEX ) );
 277                 }
 278             }
 279
 280         }
 281         else
 282         if( CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_video ) )
 283         {
 284             p_stream->i_cat = VIDEO_ES;
 285             input_AddInfo( p_cat, "Type", "Video" );
 286             msg_Dbg( p_input,
 287                     "adding new video stream(ID:%d)",
 288                     p_sp->i_stream_number );
 289             if( p_sp->p_type_specific_data )
 290             {
 291                 p_stream->p_es->i_fourcc =
 292                     VLC_FOURCC( p_sp->p_type_specific_data[27],
 293                                 p_sp->p_type_specific_data[28],
 294                                 p_sp->p_type_specific_data[29],
 295                                 p_sp->p_type_specific_data[30] );
 296             }
 297             else
 298             {
 299                 p_stream->p_es->i_fourcc =
 300                     VLC_FOURCC( 'u','n','d','f' );
 301             }
 302             input_AddInfo( p_cat, "Codec", "%.4s", (char*)&p_stream->p_es->i_fourcc );
 303             if( p_sp->i_type_specific_data_length > 11 )
 304             {
 305                 BITMAPINFOHEADER *p_bih;
 306                 size_t      i_size;
 307                 uint8_t     *p_data;
 308
 309                 i_size = p_sp->i_type_specific_data_length - 11;
 310
 311                 p_bih = malloc( i_size );
 312                 p_stream->p_es->p_bitmapinfoheader = (void*)p_bih;
 313                 p_data = p_sp->p_type_specific_data + 11;
 314
 315                 p_bih->biSize       = GetDWLE( p_data );
 316                 input_AddInfo( p_cat, "Size", "%d", p_bih->biSize );
 317                 p_bih->biWidth      = GetDWLE( p_data + 4 );
 318                 p_bih->biHeight     = GetDWLE( p_data + 8 );
 319                 input_AddInfo( p_cat, "Resolution", "%dx%d", p_bih->biWidth, p_bih->biHeight );
 320                 p_bih->biPlanes     = GetDWLE( p_data + 12 );
 321                 input_AddInfo( p_cat, "Planes", "%d", p_bih->biPlanes );
 322                 p_bih->biBitCount   = GetDWLE( p_data + 14 );
 323                 input_AddInfo( p_cat, "Bits per pixel", "%d", p_bih->biBitCount );
 324                 p_bih->biCompression= GetDWLE( p_data + 16 );
 325                 input_AddInfo( p_cat, "Compression Rate", "%d", p_bih->biCompression );
 326                 p_bih->biSizeImage  = GetDWLE( p_data + 20 );
 327                 input_AddInfo( p_cat, "Image Size", "%d", p_bih->biSizeImage );
 328                 p_bih->biXPelsPerMeter = GetDWLE( p_data + 24 );
 329                 input_AddInfo( p_cat, "X pixels per meter", "%d", p_bih->biXPelsPerMeter );
 330                 p_bih->biYPelsPerMeter = GetDWLE( p_data + 28 );
 331                 input_AddInfo( p_cat, "Y pixels per meter", "%d", p_bih->biYPelsPerMeter );
 332                 p_bih->biClrUsed       = GetDWLE( p_data + 32 );
 333                 p_bih->biClrImportant  = GetDWLE( p_data + 36 );
 334
 335                 if( i_size > sizeof( BITMAPINFOHEADER ) )
 336                 {
 337                     memcpy( (uint8_t*)p_bih + sizeof( BITMAPINFOHEADER ),
 338                             p_data + sizeof( BITMAPINFOHEADER ),
 339                             i_size - sizeof( BITMAPINFOHEADER ) );
 340                 }
 341             }
 342
 343         }
 344         else
 345         {
 346             p_stream->i_cat = UNKNOWN_ES;
 347             msg_Dbg( p_input,
 348                     "ignoring unknown stream(ID:%d)",
 349                     p_sp->i_stream_number );
 350             p_stream->p_es->i_fourcc = VLC_FOURCC( 'u','n','d','f' );
 351         }
 352         p_stream->p_es->i_cat = p_stream->i_cat;
 353
 354         vlc_mutex_lock( &p_input->stream.stream_lock );
 355         if( p_stream->p_es->i_fourcc != VLC_FOURCC( 'u','n','d','f' ) )
 356         {
 357             input_SelectES( p_input, p_stream->p_es );
 358         }
 359         vlc_mutex_unlock( &p_input->stream.stream_lock );
 360     }
 361
 362
 363     p_demux->i_data_begin = p_demux->root.p_data->i_object_pos + 50;
 364     if( p_demux->root.p_data->i_object_size != 0 )
 365     { // local file
 366         p_demux->i_data_end = p_demux->root.p_data->i_object_pos +
 367                                     p_demux->root.p_data->i_object_size;
 368     }
 369     else
 370     { // live/broacast
 371         p_demux->i_data_end = -1;
 372     }
 373
 374
 375     // go to first packet
 376     ASF_SeekAbsolute( p_input, p_demux->i_data_begin );
 377
 378     vlc_mutex_lock( &p_input->stream.stream_lock );
 379     /* try to calculate movie time */
 380     if( p_demux->p_fp->i_data_packets_count > 0 )
 381     {
 382         int64_t i_count;
 383         mtime_t i_length;
 384
 385         /* real number of packets */
 386         i_count = ( p_input->stream.p_selected_area->i_size -
 387                        p_demux->i_data_begin ) /
 388                             p_demux->p_fp->i_min_data_packet_size;
 389         /* calculate the time duration in s */
 390         i_length = (mtime_t)p_demux->p_fp->i_play_duration / 10 *
 391                    (mtime_t)i_count /
 392                    (mtime_t)p_demux->p_fp->i_data_packets_count /
 393                    (mtime_t)1000000;
 394         if( i_length > 0 )
 395         {
 396             p_input->stream.i_mux_rate =
 397                 p_input->stream.p_selected_area->i_size / 50 / i_length;
 398         }
 399         else
 400         {
 401             p_input->stream.i_mux_rate = 0;
 402         }
 403
 404     }
 405     else
 406     {
 407         /* cannot known */
 408         p_input->stream.i_mux_rate = 0;
 409     }
 410
 411
 412
 413     p_input->stream.p_selected_program->b_is_ok = 1;
 414     vlc_mutex_unlock( &p_input->stream.stream_lock );
 415
 416
 417     return( 0 );
 418 }
 419
 420 /*****************************************************************************
 421  * Demux: read packet and send them to decoders
 422  *****************************************************************************/
 423 #define GETVALUE2b( bits, var, def ) \
 424     switch( (bits)&0x03 ) \
 425     { \
 426         case 1: var = p_peek[i_skip]; i_skip++; break; \
 427         case 2: var = GetWLE( p_peek + i_skip );  i_skip+= 2; break; \
 428         case 3: var = GetDWLE( p_peek + i_skip ); i_skip+= 4; break; \
 429         case 0: \
 430         default: var = def; break;\
 431     }
 432
 433 static int Demux( input_thread_t *p_input )
 434 {
 435     demux_sys_t *p_demux = p_input->p_demux_data;
 436     int i;
 437
 438     /* catch seek from user */
 439     if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
 440     {
 441         off_t i_offset;
 442         msleep( DEFAULT_PTS_DELAY );
 443         i_offset = ASF_TellAbsolute( p_input ) - p_demux->i_data_begin;
 444
 445         if( i_offset  < 0 )
 446         {
 447             i_offset = 0;
 448         }
 449         /* XXX work only when i_min_data_packet_size == i_max_data_packet_size */
 450         i_offset += p_demux->p_fp->i_min_data_packet_size -
 451                         i_offset % p_demux->p_fp->i_min_data_packet_size;
 452         ASF_SeekAbsolute( p_input, p_demux->i_data_begin + i_offset );
 453
 454         p_demux->i_time = 0;
 455         for( i = 0; i < 128 ; i++ )
 456         {
 457 #define p_stream p_demux->stream[i]
 458             if( p_stream )
 459             {
 460                 p_stream->i_time = 0;
 461             }
 462 #undef p_stream
 463         }
 464         p_demux->i_first_pts = -1;
 465     }
 466
 467
 468     for( i = 0; i < 10; i++ ) // parse 10 packets
 469     {
 470         int     i_data_packet_min = p_demux->p_fp->i_min_data_packet_size;
 471         uint8_t *p_peek;
 472         int     i_skip;
 473
 474         int     i_packet_size_left;
 475         int     i_packet_flags;
 476         int     i_packet_property;
 477
 478         int     b_packet_multiple_payload;
 479         int     i_packet_length;
 480         int     i_packet_sequence;
 481         int     i_packet_padding_length;
 482
 483         uint32_t    i_packet_send_time;
 484         uint16_t    i_packet_duration;
 485         int         i_payload;
 486         int         i_payload_count;
 487         int         i_payload_length_type;
 488
 489
 490         if( input_Peek( p_input, &p_peek, i_data_packet_min ) < i_data_packet_min )
 491         {
 492             // EOF ?
 493             msg_Err( p_input, "cannot peek while getting new packet, EOF ?" );
 494             return( 0 );
 495         }
 496         i_skip = 0;
 497
 498         /* *** parse error correction if present *** */
 499         if( p_peek[0]&0x80 )
 500         {
 501             int i_error_correction_length_type;
 502             int i_error_correction_data_length;
 503             int i_opaque_data_present;
 504
 505             i_error_correction_data_length = p_peek[0] & 0x0f;  // 4bits
 506             i_opaque_data_present = ( p_peek[0] >> 4 )& 0x01;    // 1bit
 507             i_error_correction_length_type = ( p_peek[0] >> 5 ) & 0x03; // 2bits
 508             i_skip += 1; // skip error correction flags
 509
 510             if( i_error_correction_length_type != 0x00 ||
 511                 i_opaque_data_present != 0 ||
 512                 i_error_correction_data_length != 0x02 )
 513             {
 514                 goto loop_error_recovery;
 515             }
 516
 517             i_skip += i_error_correction_data_length;
 518         }
 519         else
 520         {
 521             msg_Warn( p_input, "p_peek[0]&0x80 != 0x80" );
 522         }
 523
 524         i_packet_flags = p_peek[i_skip]; i_skip++;
 525         i_packet_property = p_peek[i_skip]; i_skip++;
 526
 527         b_packet_multiple_payload = i_packet_flags&0x01;
 528
 529         /* read some value */
 530         GETVALUE2b( i_packet_flags >> 5, i_packet_length, i_data_packet_min );
 531         GETVALUE2b( i_packet_flags >> 1, i_packet_sequence, 0 );
 532         GETVALUE2b( i_packet_flags >> 3, i_packet_padding_length, 0 );
 533
 534         i_packet_send_time = GetDWLE( p_peek + i_skip ); i_skip += 4;
 535         i_packet_duration  = GetWLE( p_peek + i_skip ); i_skip += 2;
 536
 537 //        i_packet_size_left = i_packet_length;   // XXX données reellement lu
 538         /* FIXME I have to do that for some file, I don't known why */
 539         i_packet_size_left = i_data_packet_min;
 540
 541         if( b_packet_multiple_payload )
 542         {
 543             i_payload_count = p_peek[i_skip] & 0x3f;
 544             i_payload_length_type = ( p_peek[i_skip] >> 6 )&0x03;
 545             i_skip++;
 546         }
 547         else
 548         {
 549             i_payload_count = 1;
 550             i_payload_length_type = 0x02; // unused
 551         }
 552
 553         for( i_payload = 0; i_payload < i_payload_count ; i_payload++ )
 554         {
 555             asf_stream_t   *p_stream;
 556
 557             int i_stream_number;
 558             int i_media_object_number;
 559             int i_media_object_offset;
 560             int i_replicated_data_length;
 561             int i_payload_data_length;
 562             int i_payload_data_pos;
 563             int i_sub_payload_data_length;
 564             int i_tmp;
 565
 566             mtime_t i_pts;
 567             mtime_t i_pts_delta;
 568
 569             if( i_skip >= i_packet_size_left )
 570             {
 571                 /* prevent some segfault with invalid file */
 572                 break;
 573             }
 574
 575             i_stream_number = p_peek[i_skip] & 0x7f;
 576             i_skip++;
 577
 578             GETVALUE2b( i_packet_property >> 4, i_media_object_number, 0 );
 579             GETVALUE2b( i_packet_property >> 2, i_tmp, 0 );
 580             GETVALUE2b( i_packet_property, i_replicated_data_length, 0 );
 581
 582             if( i_replicated_data_length > 1 ) // should be at least 8 bytes
 583             {
 584                 i_pts = (mtime_t)GetDWLE( p_peek + i_skip + 4 ) * 1000;
 585                 i_skip += i_replicated_data_length;
 586                 i_pts_delta = 0;
 587
 588                 i_media_object_offset = i_tmp;
 589             }
 590             else if( i_replicated_data_length == 1 )
 591             {
 592
 593                 msg_Dbg( p_input, "found compressed payload" );
 594
 595                 i_pts = (mtime_t)i_tmp * 1000;
 596                 i_pts_delta = (mtime_t)p_peek[i_skip] * 1000; i_skip++;
 597
 598                 i_media_object_offset = 0;
 599             }
 600             else
 601             {
 602                 i_pts = (mtime_t)i_packet_send_time * 1000;
 603                 i_pts_delta = 0;
 604
 605                 i_media_object_offset = i_tmp;
 606             }
 607
 608             i_pts = __MAX( i_pts - p_demux->p_fp->i_preroll * 1000, 0 );
 609             if( b_packet_multiple_payload )
 610             {
 611                 GETVALUE2b( i_payload_length_type, i_payload_data_length, 0 );
 612             }
 613             else
 614             {
 615                 i_payload_data_length = i_packet_length -
 616                                             i_packet_padding_length - i_skip;
 617             }
 618
 619 #if 0
 620              msg_Dbg( p_input,
 621                       "payload(%d/%d) stream_number:%d media_object_number:%d media_object_offset:%d replicated_data_length:%d payload_data_length %d",
 622                       i_payload + 1,
 623                       i_payload_count,
 624                       i_stream_number,
 625                       i_media_object_number,
 626                       i_media_object_offset,
 627                       i_replicated_data_length,
 628                       i_payload_data_length );
 629 #endif
 630
 631             if( !( p_stream = p_demux->stream[i_stream_number] ) )
 632             {
 633                 msg_Warn( p_input,
 634                           "undeclared stream[Id 0x%x]", i_stream_number );
 635                 i_skip += i_payload_data_length;
 636                 continue;   // over payload
 637             }
 638
 639             if( !p_stream->p_es || !p_stream->p_es->p_decoder_fifo )
 640             {
 641                 i_skip += i_payload_data_length;
 642                 continue;
 643             }
 644
 645
 646             for( i_payload_data_pos = 0;
 647                  i_payload_data_pos < i_payload_data_length &&
 648                         i_packet_size_left > 0;
 649                  i_payload_data_pos += i_sub_payload_data_length )
 650             {
 651                 data_packet_t  *p_data;
 652                 int i_read;
 653                 // read sub payload length
 654                 if( i_replicated_data_length == 1 )
 655                 {
 656                     i_sub_payload_data_length = p_peek[i_skip]; i_skip++;
 657                     i_payload_data_pos++;
 658                 }
 659                 else
 660                 {
 661                     i_sub_payload_data_length = i_payload_data_length;
 662                 }
 663
 664                 /* FIXME I don't use i_media_object_number, sould I ? */
 665                 if( p_stream->p_pes && i_media_object_offset == 0 )                 {
 666                     /* send complete packet to decoder */
 667                     if( p_stream->p_pes->i_pes_size > 0 )
 668                     {
 669                         input_DecodePES( p_stream->p_es->p_decoder_fifo, p_stream->p_pes );
 670                         p_stream->p_pes = NULL;
 671                     }
 672                 }
 673
 674                 if( !p_stream->p_pes )  // add a new PES
 675                 {
 676                     p_stream->i_time =
 677                         ( (mtime_t)i_pts + i_payload * (mtime_t)i_pts_delta );
 678
 679                     if( p_demux->i_first_pts == -1 )
 680                     {
 681                         p_demux->i_first_pts = p_stream->i_time;
 682                     }
 683                     p_stream->i_time -= p_demux->i_first_pts;
 684
 685                     p_stream->p_pes = input_NewPES( p_input->p_method_data );
 686                     p_stream->p_pes->i_dts =
 687                         p_stream->p_pes->i_pts =
 688                             input_ClockGetTS( p_input,
 689                                               p_input->stream.p_selected_program,
 690                                               ( p_stream->i_time+DEFAULT_PTS_DELAY) * 9 /100 );
 691
 692                     p_stream->p_pes->p_next = NULL;
 693                     p_stream->p_pes->i_nb_data = 0;
 694                     p_stream->p_pes->i_pes_size = 0;
 695                 }
 696
 697                 i_read = i_sub_payload_data_length + i_skip;
 698                 if( input_SplitBuffer( p_input, &p_data, i_read ) < i_read )
 699                 {
 700                     msg_Err( p_input, "cannot read data" );
 701                     return( 0 );
 702                 }
 703                 p_data->p_payload_start += i_skip;
 704                 i_packet_size_left -= i_read;
 705
 706
 707                 if( !p_stream->p_pes->p_first )
 708                 {
 709                     p_stream->p_pes->p_first = p_stream->p_pes->p_last = p_data;
 710                 }
 711                 else
 712                 {
 713                     p_stream->p_pes->p_last->p_next = p_data;
 714                     p_stream->p_pes->p_last = p_data;
 715                 }
 716                 p_stream->p_pes->i_pes_size += i_sub_payload_data_length;
 717                 p_stream->p_pes->i_nb_data++;
 718
 719                 i_skip = 0;
 720                 if( i_packet_size_left > 0 )
 721                 {
 722                     if( input_Peek( p_input, &p_peek, i_packet_size_left ) < i_packet_size_left )
 723                     {
 724                         // EOF ?
 725                         msg_Warn( p_input, "cannot peek, EOF ?" );
 726                         return( 0 );
 727                     }
 728                 }
 729             }
 730         }
 731
 732         if( i_packet_size_left > 0 )
 733         {
 734             if( !ASF_SkipBytes( p_input, i_packet_size_left ) )
 735             {
 736                 msg_Warn( p_input, "cannot skip data, EOF ?" );
 737                 return( 0 );
 738             }
 739         }
 740
 741         continue;
 742
 743 loop_error_recovery:
 744         msg_Warn( p_input, "unsupported packet header" );
 745         if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
 746         {
 747             msg_Err( p_input, "unsupported packet header, fatal error" );
 748             return( -1 );
 749         }
 750         ASF_SkipBytes( p_input, i_data_packet_min );
 751
 752     }   // loop over packet
 753     p_demux->i_time = -1;
 754     for( i = 0; i < 128 ; i++ )
 755     {
 756 #define p_stream p_demux->stream[i]
 757         if( p_stream && p_stream->p_es && p_stream->p_es->p_decoder_fifo )
 758         {
 759             if( p_demux->i_time < 0 )
 760             {
 761                 p_demux->i_time = p_stream->i_time;
 762             }
 763             else
 764             {
 765                 p_demux->i_time = __MIN( p_demux->i_time, p_stream->i_time );
 766             }
 767         }
 768 #undef p_stream
 769     }
 770
 771     if( p_demux->i_time >= 0 )
 772     {
 773         /* update pcr XXX in mpeg scale so in 90000 unit/s */
 774         p_demux->i_pcr =( __MAX( p_demux->i_time /*- DEFAULT_PTS_DELAY*/, 0 ) ) * 9 / 100;
 775
 776         /* first wait for the good time to read next packets */
 777         input_ClockManageRef( p_input,
 778                               p_input->stream.p_selected_program,
 779                               p_demux->i_pcr );
 780     }
 781
 782
 783     return( 1 );
 784 }
 785
 786 /*****************************************************************************
 787  * MP4End: frees unused data
 788  *****************************************************************************/
 789 static void Deactivate( vlc_object_t * p_this )
 790 {
 791 #define FREE( p ) \
 792     if( p ) { free( p ); }
 793
 794     input_thread_t *  p_input = (input_thread_t *)p_this;
 795     demux_sys_t *p_demux = p_input->p_demux_data;
 796     int i_stream;
 797
 798     msg_Dbg( p_input, "Freeing all memory" );
 799     ASF_FreeObjectRoot( p_input, &p_demux->root );
 800     for( i_stream = 0; i_stream < 128; i_stream++ )
 801     {
 802 #define p_stream p_demux->stream[i_stream]
 803         if( p_stream )
 804         {
 805             if( p_stream->p_pes )
 806             {
 807                 input_DeletePES( p_input->p_method_data, p_stream->p_pes );
 808             }
 809             free( p_stream );
 810         }
 811 #undef p_stream
 812     }
 813
 814 #undef FREE
 815 }
 816