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 1.4 2002/11/10 16:31:20 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 u16 GetWLE( u8 *p_buff )
  55 {
  56     return( (p_buff[0]) + ( p_buff[1] <<8 ) );
  57 }
  58 static u32 GetDWLE( u8 *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     u8  *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
 107     /* Now load all object ( except raw data ) */
 108     if( !ASF_ReadObjectRoot( p_input, &p_demux->root, p_input->stream.b_seekable ) )
 109     {
 110         msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
 111         free( p_demux );
 112         return( -1 );
 113     }
 114     /* Check if we have found all mandatory asf object */
 115     if( !p_demux->root.p_hdr || !p_demux->root.p_data )
 116     {
 117         ASF_FreeObjectRoot( p_input, &p_demux->root );
 118         free( p_demux );
 119         msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
 120         return( -1 );
 121     }
 122
 123     if( !( p_demux->p_fp = ASF_FindObject( p_demux->root.p_hdr,
 124                                     &asf_object_file_properties_guid, 0 ) ) )
 125     {
 126         ASF_FreeObjectRoot( p_input, &p_demux->root );
 127         free( p_demux );
 128         msg_Warn( p_input, "ASF v1.0 plugin discarded (missing file_properties object)" );
 129         return( -1 );
 130     }
 131
 132     if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
 133     {
 134         ASF_FreeObjectRoot( p_input, &p_demux->root );
 135         free( p_demux );
 136         msg_Warn( p_input, "ASF v1.0 plugin discarded (invalid file_properties object)" );
 137         return( -1 );
 138     }
 139
 140     p_demux->i_streams = ASF_CountObject( p_demux->root.p_hdr,
 141                                           &asf_object_stream_properties_guid );
 142     if( !p_demux->i_streams )
 143     {
 144         ASF_FreeObjectRoot( p_input, &p_demux->root );
 145         free( p_demux );
 146         msg_Warn( p_input, "ASF plugin discarded (cannot find any stream!)" );
 147         return( -1 );
 148     }
 149     else
 150     {
 151         msg_Dbg( p_input, "found %d streams", p_demux->i_streams );
 152     }
 153
 154     /*  create one program */
 155     vlc_mutex_lock( &p_input->stream.stream_lock );
 156     if( input_InitStream( p_input, 0 ) == -1)
 157     {
 158         vlc_mutex_unlock( &p_input->stream.stream_lock );
 159         msg_Err( p_input, "cannot init stream" );
 160         return( -1 );
 161     }
 162     if( input_AddProgram( p_input, 0, 0) == NULL )
 163     {
 164         vlc_mutex_unlock( &p_input->stream.stream_lock );
 165         msg_Err( p_input, "cannot add program" );
 166         return( -1 );
 167     }
 168     p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 169     p_input->stream.i_mux_rate = 0 ; /* FIXME */
 170     vlc_mutex_unlock( &p_input->stream.stream_lock );
 171
 172     for( i_stream = 0; i_stream < p_demux->i_streams; i_stream ++ )
 173     {
 174         asf_stream_t    *p_stream;
 175         asf_object_stream_properties_t *p_sp;
 176
 177         p_sp = ASF_FindObject( p_demux->root.p_hdr,
 178                                &asf_object_stream_properties_guid,
 179                                i_stream );
 180
 181         p_stream =
 182             p_demux->stream[p_sp->i_stream_number] =
 183                 malloc( sizeof( asf_stream_t ) );
 184         memset( p_stream, 0, sizeof( asf_stream_t ) );
 185         p_stream->p_sp = p_sp;
 186
 187         vlc_mutex_lock( &p_input->stream.stream_lock );
 188         p_stream->p_es =
 189             input_AddES( p_input,
 190                          p_input->stream.p_selected_program,
 191                          p_sp->i_stream_number,
 192                          0 );
 193
 194         vlc_mutex_unlock( &p_input->stream.stream_lock );
 195         if( CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_audio ) )
 196         {
 197             int i_codec;
 198             if( p_sp->p_type_specific_data )
 199             {
 200                 i_codec = GetWLE( p_sp->p_type_specific_data );
 201             }
 202             else
 203             {
 204                 i_codec = -1;
 205             }
 206
 207             p_stream->i_cat = AUDIO_ES;
 208             msg_Dbg( p_input,
 209                     "adding new audio stream(codec:0x%x,ID:%d)",
 210                     i_codec,
 211                     p_sp->i_stream_number );
 212             switch( i_codec )
 213             {
 214                 case( 0x01 ):
 215                     p_stream->p_es->i_fourcc =
 216                         VLC_FOURCC( 'a', 'r', 'a', 'w' );
 217                     break;
 218                 case( 0x50 ):
 219                 case( 0x55 ):
 220                     p_stream->p_es->i_fourcc =
 221                         VLC_FOURCC( 'm','p','g','a' );
 222                     break;
 223                 case( 0x2000 ):
 224                     p_stream->p_es->i_fourcc =
 225                         VLC_FOURCC( 'a','5','2',' ' );
 226                     break;
 227                 case( 0x160 ):
 228                     p_stream->p_es->i_fourcc =
 229                         VLC_FOURCC( 'w','m','a','1' );
 230                     break;
 231                 case( 0x161 ):
 232                     p_stream->p_es->i_fourcc =
 233                         VLC_FOURCC( 'w','m','a','2' );
 234                     break;
 235                 default:
 236                     p_stream->p_es->i_fourcc =
 237                         VLC_FOURCC( 'u','n','d','f' );
 238             }
 239             if( p_sp->i_type_specific_data_length > 0 )
 240             {
 241                 p_stream->p_es->p_demux_data =
 242                     malloc( p_sp->i_type_specific_data_length );
 243                 memcpy( p_stream->p_es->p_demux_data,
 244                         p_sp->p_type_specific_data,
 245                         p_sp->i_type_specific_data_length );
 246             }
 247
 248         }
 249         else
 250         if( CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_video ) )
 251         {
 252             p_stream->i_cat = VIDEO_ES;
 253             msg_Dbg( p_input,
 254                     "adding new video stream(ID:%d)",
 255                     p_sp->i_stream_number );
 256             if( p_sp->p_type_specific_data )
 257             {
 258                 p_stream->p_es->i_fourcc =
 259                     GetDWLE( p_sp->p_type_specific_data + 27 );
 260             }
 261             else
 262             {
 263                 p_stream->p_es->i_fourcc =
 264                     VLC_FOURCC( 'u','n','d','f' );
 265             }
 266             if( p_sp->i_type_specific_data_length > 11 )
 267             {
 268                 p_stream->p_es->p_demux_data =
 269                     malloc( p_sp->i_type_specific_data_length - 11);
 270                 memcpy( p_stream->p_es->p_demux_data,
 271                         p_sp->p_type_specific_data + 11,
 272                         p_sp->i_type_specific_data_length - 11 );
 273             }
 274
 275         }
 276         else
 277         {
 278             p_stream->i_cat = UNKNOWN_ES;
 279             msg_Dbg( p_input,
 280                     "ignoring unknown stream(ID:%d)",
 281                     p_sp->i_stream_number );
 282             p_stream->p_es->i_fourcc = VLC_FOURCC( 'u','n','d','f' );
 283         }
 284         p_stream->p_es->i_cat = p_stream->i_cat;
 285
 286         vlc_mutex_lock( &p_input->stream.stream_lock );
 287         input_SelectES( p_input, p_stream->p_es );
 288         vlc_mutex_unlock( &p_input->stream.stream_lock );
 289     }
 290
 291     vlc_mutex_lock( &p_input->stream.stream_lock );
 292     p_input->stream.p_selected_program->b_is_ok = 1;
 293     vlc_mutex_unlock( &p_input->stream.stream_lock );
 294
 295     p_demux->i_data_begin = p_demux->root.p_data->i_object_pos + 50;
 296     if( p_demux->root.p_data->i_object_size != 0 )
 297     { // local file
 298         p_demux->i_data_end = p_demux->root.p_data->i_object_pos +
 299                                     p_demux->root.p_data->i_object_size;
 300     }
 301     else
 302     { // live/broacast
 303         p_demux->i_data_end = -1;
 304     }
 305
 306
 307     // go to first packet
 308     ASF_SeekAbsolute( p_input, p_demux->i_data_begin );
 309     return( 0 );
 310 }
 311
 312 /*****************************************************************************
 313  * Demux: read packet and send them to decoders
 314  *****************************************************************************/
 315 #define GETVALUE2b( bits, var, def ) \
 316     switch( (bits)&0x03 ) \
 317     { \
 318         case 1: var = p_peek[i_skip]; i_skip++; break; \
 319         case 2: var = GetWLE( p_peek + i_skip );  i_skip+= 2; break; \
 320         case 3: var = GetDWLE( p_peek + i_skip ); i_skip+= 4; break; \
 321         case 0: \
 322         default: var = def; break;\
 323     }
 324
 325 static int Demux( input_thread_t *p_input )
 326 {
 327     demux_sys_t *p_demux = p_input->p_demux_data;
 328     int i;
 329
 330     /* catch seek from user */
 331     if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
 332     {
 333         off_t i_offset;
 334
 335         i_offset = ASF_TellAbsolute( p_input ) - p_demux->i_data_begin;
 336
 337         if( i_offset  < 0 )
 338         {
 339             i_offset = 0;
 340         }
 341         /* XXX work only when i_min_data_packet_size == i_max_data_packet_size */
 342         i_offset -= i_offset % p_demux->p_fp->i_min_data_packet_size;
 343         ASF_SeekAbsolute( p_input, p_demux->i_data_begin + i_offset );
 344
 345         p_demux->i_time = 0;
 346         for( i = 0; i < 128 ; i++ )
 347         {
 348 #define p_stream p_demux->stream[i]
 349             if( p_stream )
 350             {
 351                 p_stream->i_time = 0;
 352             }
 353 #undef p_stream
 354         }
 355
 356     }
 357     /* first wait for the good time to read a packet */
 358
 359     input_ClockManageRef( p_input,
 360                           p_input->stream.p_selected_program,
 361                           p_demux->i_pcr );
 362
 363     /* update pcr XXX in mpeg scale so in 90000 unit/s */
 364     p_demux->i_pcr = p_demux->i_time * 9 / 100;
 365
 366     for( i = 0; i < 10; i++ ) // parse 10 packets
 367     {
 368         int i_data_packet_min = p_demux->p_fp->i_min_data_packet_size;
 369         u8  *p_peek;
 370         int i_skip;
 371
 372         int i_packet_size_left;
 373         int i_packet_flags;
 374         int i_packet_property;
 375
 376         int b_packet_multiple_payload;
 377         int i_packet_length;
 378         int i_packet_sequence;
 379         int i_packet_padding_length;
 380
 381         u32 i_packet_send_time;
 382         u16 i_packet_duration;
 383         int i_payload;
 384         int i_payload_count;
 385         int i_payload_length_type;
 386
 387
 388         if( input_Peek( p_input, &p_peek, i_data_packet_min ) < i_data_packet_min )
 389         {
 390             // EOF ?
 391             msg_Err( p_input, "cannot peek while getting new packet, EOF ?" );
 392             return( 0 );
 393         }
 394         i_skip = 0;
 395
 396         /* *** parse error correction if present *** */
 397         if( p_peek[0]&0x80 )
 398         {
 399             int i_error_correction_length_type;
 400             int i_error_correction_data_length;
 401             int i_opaque_data_present;
 402
 403             i_error_correction_data_length = p_peek[0] & 0x0f;  // 4bits
 404             i_opaque_data_present = ( p_peek[0] >> 4 )& 0x01;    // 1bit
 405             i_error_correction_length_type = ( p_peek[0] >> 5 ) & 0x03; // 2bits
 406             i_skip += 1; // skip error correction flags
 407
 408             if( i_error_correction_length_type != 0x00 ||
 409                 i_opaque_data_present != 0 ||
 410                 i_error_correction_data_length != 0x02 )
 411             {
 412                 goto loop_error_recovery;
 413             }
 414
 415             i_skip += i_error_correction_data_length;
 416         }
 417         else
 418         {
 419             msg_Warn( p_input, "p_peek[0]&0x80 != 0x80" );
 420         }
 421
 422         i_packet_flags = p_peek[i_skip]; i_skip++;
 423         i_packet_property = p_peek[i_skip]; i_skip++;
 424
 425         b_packet_multiple_payload = i_packet_flags&0x01;
 426
 427         /* read some value */
 428         GETVALUE2b( i_packet_flags >> 5, i_packet_length, i_data_packet_min );
 429         GETVALUE2b( i_packet_flags >> 1, i_packet_sequence, 0 );
 430         GETVALUE2b( i_packet_flags >> 3, i_packet_padding_length, 0 );
 431
 432         i_packet_send_time = GetDWLE( p_peek + i_skip ); i_skip += 4;
 433         i_packet_duration  = GetWLE( p_peek + i_skip ); i_skip += 2;
 434
 435 //        i_packet_size_left = i_packet_length;   // XXX données reellement lu
 436         /* FIXME I have to do that for some file, I don't known why */
 437         i_packet_size_left = i_data_packet_min;
 438
 439         if( b_packet_multiple_payload )
 440         {
 441             i_payload_count = p_peek[i_skip] & 0x3f;
 442             i_payload_length_type = ( p_peek[i_skip] >> 6 )&0x03;
 443             i_skip++;
 444         }
 445         else
 446         {
 447             i_payload_count = 1;
 448             i_payload_length_type = 0x02; // unused
 449         }
 450
 451         for( i_payload = 0; i_payload < i_payload_count ; i_payload++ )
 452         {
 453             asf_stream_t   *p_stream;
 454
 455             int i_stream_number;
 456             int i_media_object_number;
 457             int i_media_object_offset;
 458             int i_replicated_data_length;
 459             int i_payload_data_length;
 460             int i_payload_data_pos;
 461             int i_sub_payload_data_length;
 462             int i_tmp;
 463
 464             mtime_t i_pts;
 465             mtime_t i_pts_delta;
 466
 467             i_stream_number = p_peek[i_skip] & 0x7f;
 468             i_skip++;
 469
 470             GETVALUE2b( i_packet_property >> 4, i_media_object_number, 0 );
 471             GETVALUE2b( i_packet_property >> 2, i_tmp, 0 );
 472             GETVALUE2b( i_packet_property, i_replicated_data_length, 0 );
 473
 474             if( i_replicated_data_length > 1 ) // should be at least 8 bytes
 475             {
 476                 i_pts = (mtime_t)GetDWLE( p_peek + i_skip + 4 ) * 1000;
 477                 i_skip += i_replicated_data_length;
 478                 i_pts_delta = 0;
 479
 480                 i_media_object_offset = i_tmp;
 481             }
 482             else if( i_replicated_data_length == 1 )
 483             {
 484
 485                 msg_Warn( p_input, "found compressed payload" );
 486
 487                 i_pts = (mtime_t)i_tmp * 1000;
 488                 i_pts_delta = (mtime_t)p_peek[i_skip] * 1000; i_skip++;
 489
 490                 i_media_object_offset = 0;
 491             }
 492             else
 493             {
 494                 i_pts = (mtime_t)i_packet_send_time * 1000;
 495                 i_pts_delta = 0;
 496
 497                 i_media_object_offset = i_tmp;
 498             }
 499
 500             i_pts = __MAX( i_pts - p_demux->p_fp->i_preroll * 1000, 0 );
 501
 502             if( b_packet_multiple_payload )
 503             {
 504                 GETVALUE2b( i_payload_length_type, i_payload_data_length, 0 );
 505             }
 506             else
 507             {
 508                 msg_Warn( p_input, "single payload" );
 509                 i_payload_data_length = i_packet_length - i_packet_padding_length - i_skip;
 510             }
 511
 512 #if 0
 513              msg_Dbg( p_input,
 514                       "payload(%d/%d) stream_number:%d media_object_number:%d media_object_offset:%d replicated_data_length:%d payload_data_length %d",
 515                       i_payload + 1,
 516                       i_payload_count,
 517                       i_stream_number,
 518                       i_media_object_number,
 519                       i_media_object_offset,
 520                       i_replicated_data_length,
 521                       i_payload_data_length );
 522 #endif
 523
 524             if( !( p_stream = p_demux->stream[i_stream_number] ) )
 525             {
 526                 msg_Warn( p_input, "undeclared stream[Id 0x%x]", i_stream_number );
 527                 i_skip += i_payload_data_length;
 528                 continue;   // over payload
 529             }
 530
 531             if( !p_stream->p_es || !p_stream->p_es->p_decoder_fifo )
 532             {
 533                 i_skip += i_payload_data_length;
 534                 continue;
 535             }
 536
 537
 538             for( i_payload_data_pos = 0;
 539                  i_payload_data_pos < i_payload_data_length &&
 540                         i_packet_size_left > 0;
 541                  i_payload_data_pos += i_sub_payload_data_length )
 542             {
 543                 data_packet_t  *p_data;
 544                 int i_read;
 545                 // read sub payload length
 546                 if( i_replicated_data_length == 1 )
 547                 {
 548                     i_sub_payload_data_length = p_peek[i_skip]; i_skip++;
 549                     i_payload_data_pos++;
 550                 }
 551                 else
 552                 {
 553                     i_sub_payload_data_length = i_payload_data_length;
 554                 }
 555
 556                 /* FIXME I don't use i_media_object_number, sould I ? */
 557                 if( p_stream->p_pes && i_media_object_offset == 0 )                 {
 558                     /* send complete packet to decoder */
 559                     if( p_stream->p_pes->i_pes_size > 0 )
 560                     {
 561                         input_DecodePES( p_stream->p_es->p_decoder_fifo, p_stream->p_pes );
 562                         p_stream->p_pes = NULL;
 563                     }
 564                 }
 565
 566                 if( !p_stream->p_pes )  // add a new PES
 567                 {
 568                     p_stream->i_time = ( (mtime_t)i_pts + i_payload * (mtime_t)i_pts_delta );
 569
 570                     p_stream->p_pes = input_NewPES( p_input->p_method_data );
 571                     p_stream->p_pes->i_dts =
 572                         p_stream->p_pes->i_pts =
 573                             input_ClockGetTS( p_input,
 574                                               p_input->stream.p_selected_program,
 575                                               p_stream->i_time * 9 / 100 );
 576
 577                     p_stream->p_pes->p_next = NULL;
 578                     p_stream->p_pes->i_nb_data = 0;
 579                     p_stream->p_pes->i_pes_size = 0;
 580                 }
 581
 582                 i_read = i_sub_payload_data_length + i_skip;
 583                 if( input_SplitBuffer( p_input, &p_data, i_read ) < i_read )
 584                 {
 585                     msg_Err( p_input, "cannot read data" );
 586                     return( 0 );
 587                 }
 588                 p_data->p_payload_start += i_skip;
 589                 i_packet_size_left -= i_read;
 590
 591
 592                 if( !p_stream->p_pes->p_first )
 593                 {
 594                     p_stream->p_pes->p_first = p_stream->p_pes->p_last = p_data;
 595                 }
 596                 else
 597                 {
 598                     p_stream->p_pes->p_last->p_next = p_data;
 599                     p_stream->p_pes->p_last = p_data;
 600                 }
 601                 p_stream->p_pes->i_pes_size += i_sub_payload_data_length;
 602                 p_stream->p_pes->i_nb_data++;
 603
 604                 i_skip = 0;
 605                 if( i_packet_size_left > 0 )
 606                 {
 607                     if( input_Peek( p_input, &p_peek, i_packet_size_left ) < i_packet_size_left )
 608                     {
 609                         // EOF ?
 610                         msg_Warn( p_input, "cannot peek, EOF ?" );
 611                         return( 0 );
 612                     }
 613                 }
 614             }
 615         }
 616
 617         if( i_packet_size_left > 0 )
 618         {
 619             if( !ASF_SkipBytes( p_input, i_packet_size_left ) )
 620             {
 621                 msg_Warn( p_input, "cannot skip data, EOF ?" );
 622                 return( 0 );
 623             }
 624         }
 625
 626         continue;
 627
 628 loop_error_recovery:
 629         msg_Warn( p_input, "unsupported packet header" );
 630         if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
 631         {
 632             msg_Err( p_input, "unsupported packet header, fatal error" );
 633             return( -1 );
 634         }
 635         ASF_SkipBytes( p_input, i_data_packet_min );
 636
 637     }   // loop over packet
 638     p_demux->i_time = 0;
 639     for( i = 0; i < 128 ; i++ )
 640     {
 641 #define p_stream p_demux->stream[i]
 642         if( p_stream && p_stream->p_es && p_stream->p_es->p_decoder_fifo )
 643         {
 644             p_demux->i_time = __MAX( p_demux->i_time, p_stream->i_time );
 645         }
 646 #undef p_stream
 647     }
 648
 649     return( 1 );
 650 }
 651
 652 /*****************************************************************************
 653  * MP4End: frees unused data
 654  *****************************************************************************/
 655 static void Deactivate( vlc_object_t * p_this )
 656 {
 657 #define FREE( p ) \
 658     if( p ) { free( p ); }
 659
 660     input_thread_t *  p_input = (input_thread_t *)p_this;
 661     demux_sys_t *p_demux = p_input->p_demux_data;
 662     int i_stream;
 663
 664     msg_Dbg( p_input, "Freeing all memory" );
 665     ASF_FreeObjectRoot( p_input, &p_demux->root );
 666     for( i_stream = 0; i_stream < 128; i_stream++ )
 667     {
 668 #define p_stream p_demux->stream[i_stream]
 669         if( p_stream )
 670         {
 671             if( p_stream->p_pes )
 672             {
 673                 input_DeletePES( p_input->p_method_data, p_stream->p_pes );
 674             }
 675             free( p_stream );
 676         }
 677 #undef p_stream
 678     }
 679
 680 #undef FREE
 681 }
 682