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 1.1 2002/10/20 17:22:33 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 ) < 8 )
  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_input->p_demux_data = p_demux;
 107
 108
 109     /* Now load all object ( except raw data ) */
 110     if( !ASF_ReadObjectRoot( p_input, &p_demux->root, p_input->stream.b_seekable ) )
 111     {
 112         msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
 113         free( p_demux );
 114         return( -1 );
 115     }
 116     /* Check if we have found all mandatory asf object */
 117     if( !p_demux->root.p_hdr || !p_demux->root.p_data )
 118     {
 119         ASF_FreeObjectRoot( p_input, &p_demux->root );
 120         free( p_demux );
 121         msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
 122         return( -1 );
 123     }
 124
 125     if( !( p_demux->p_fp = ASF_FindObject( (asf_object_t*)p_demux->root.p_hdr,
 126                                     &asf_object_file_properties_guid, 0 ) ) )
 127     {
 128         ASF_FreeObjectRoot( p_input, &p_demux->root );
 129         free( p_demux );
 130         msg_Warn( p_input, "ASF v1.0 plugin discarded (missing file_properties object)" );
 131         return( -1 );
 132     }
 133
 134     if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
 135     {
 136         ASF_FreeObjectRoot( p_input, &p_demux->root );
 137         free( p_demux );
 138         msg_Warn( p_input, "ASF v1.0 plugin discarded (invalid file_properties object)" );
 139         return( -1 );
 140     }
 141
 142     p_demux->i_streams = ASF_CountObject( (asf_object_t*)p_demux->root.p_hdr,
 143                                           &asf_object_stream_properties_guid );
 144     if( !p_demux->i_streams )
 145     {
 146         ASF_FreeObjectRoot( p_input, &p_demux->root );
 147         free( p_demux );
 148         msg_Warn( p_input, "ASF plugin discarded (cannot find any stream!)" );
 149         return( -1 );
 150     }
 151     else
 152     {
 153         msg_Dbg( p_input, "found %d streams", p_demux->i_streams );
 154     }
 155
 156     /*  create one program */
 157     vlc_mutex_lock( &p_input->stream.stream_lock );
 158     if( input_InitStream( p_input, 0 ) == -1)
 159     {
 160         vlc_mutex_unlock( &p_input->stream.stream_lock );
 161         msg_Err( p_input, "cannot init stream" );
 162         return( -1 );
 163     }
 164     if( input_AddProgram( p_input, 0, 0) == NULL )
 165     {
 166         vlc_mutex_unlock( &p_input->stream.stream_lock );
 167         msg_Err( p_input, "cannot add program" );
 168         return( -1 );
 169     }
 170     p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
 171     p_input->stream.i_mux_rate = 0 ; /* FIXME */
 172     vlc_mutex_unlock( &p_input->stream.stream_lock );
 173
 174     for( i_stream = 0; i_stream < p_demux->i_streams; i_stream ++ )
 175     {
 176         asf_stream_t    *p_stream;
 177         asf_object_stream_properties_t *p_sp;
 178
 179         p_sp = (asf_object_stream_properties_t*)
 180                     ASF_FindObject( (asf_object_t*)p_demux->root.p_hdr,
 181                                     &asf_object_stream_properties_guid,
 182                                     i_stream );
 183
 184         p_stream = p_demux->stream[p_sp->i_stream_number] = malloc( sizeof( asf_stream_t ) );
 185         memset( p_stream, 0, sizeof( asf_stream_t ) );
 186         p_stream->p_sp = p_sp;
 187
 188         vlc_mutex_lock( &p_input->stream.stream_lock );
 189         p_stream->p_es =
 190             input_AddES( p_input,
 191                          p_input->stream.p_selected_program,
 192                          p_sp->i_stream_number,
 193                          p_sp->i_type_specific_data_length );
 194         if( p_sp->i_type_specific_data_length > 11 )
 195         {
 196             memcpy( p_stream->p_es->p_demux_data,
 197                     p_sp->p_type_specific_data + 11,
 198                     p_sp->i_type_specific_data_length - 11 );
 199         }
 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             msg_Dbg( p_input,
 216                     "adding new audio stream(codec:0x%x,ID:%d)",
 217                     i_codec,
 218                     p_sp->i_stream_number );
 219             switch( i_codec )
 220             {
 221                 case( 0x50 ):
 222                 case( 0x55 ):
 223                     p_stream->p_es->i_fourcc =
 224                         VLC_FOURCC( 'm','p','g','a' );
 225                     break;
 226                 case( 0x2000 ):
 227                     p_stream->p_es->i_fourcc =
 228                         VLC_FOURCC( 'a','5','2',' ' );
 229                     break;
 230                 case( 0x160 ):
 231                 case( 0x161 ):
 232                     p_stream->p_es->i_fourcc =
 233                         VLC_FOURCC( 'w','m','a',' ' );
 234                     break;
 235                 default:
 236                     p_stream->p_es->i_fourcc =
 237                         VLC_FOURCC( 'u','n','d','f' );
 238             }
 239
 240         }
 241         else
 242         if( CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_video ) )
 243         {
 244             p_stream->i_cat = VIDEO_ES;
 245             msg_Dbg( p_input,
 246                     "adding new video stream(ID:%d)",
 247                     p_sp->i_stream_number );
 248             if( p_sp->p_type_specific_data )
 249             {
 250                 p_stream->p_es->i_fourcc =
 251                     GetDWLE( p_sp->p_type_specific_data + 27 );
 252             }
 253             else
 254             {
 255                 p_stream->p_es->i_fourcc =
 256                     VLC_FOURCC( 'u','n','d','f' );
 257             }
 258
 259         }
 260         else
 261         {
 262             p_stream->i_cat = UNKNOWN_ES;
 263             msg_Dbg( p_input,
 264                     "ignoring unknown stream(ID:%d)",
 265                     p_sp->i_stream_number );
 266             p_stream->p_es->i_fourcc = VLC_FOURCC( 'u','n','d','f' );
 267         }
 268         p_stream->p_es->i_cat = p_stream->i_cat;
 269
 270         vlc_mutex_lock( &p_input->stream.stream_lock );
 271         input_SelectES( p_input, p_stream->p_es );
 272         vlc_mutex_unlock( &p_input->stream.stream_lock );
 273     }
 274
 275     vlc_mutex_lock( &p_input->stream.stream_lock );
 276     p_input->stream.p_selected_program->b_is_ok = 1;
 277     vlc_mutex_unlock( &p_input->stream.stream_lock );
 278
 279     // go to first packet
 280     p_demux->i_data_begin = p_demux->root.p_data->i_object_pos + 50;
 281     if( p_demux->root.p_data->i_object_size != 0 )
 282     { // local file
 283         p_demux->i_data_end = p_demux->root.p_data->i_object_pos +
 284                                     p_demux->root.p_data->i_object_size;
 285     }
 286     else
 287     { // live/broacast
 288         p_demux->i_data_end = -1;
 289     }
 290     ASF_SeekAbsolute( p_input, p_demux->i_data_begin );
 291     return( 0 );
 292 }
 293
 294 /*****************************************************************************
 295  * Demux: read packet and send them to decoders
 296  *****************************************************************************/
 297 #define GETVALUE2b( bits, var, def ) \
 298     switch( bits ) \
 299     { \
 300         case 1: var = p_peek[i_skip]; i_skip++; break; \
 301         case 2: var = GetWLE( p_peek + i_skip );  i_skip+= 2; break; \
 302         case 3: var = GetDWLE( p_peek + i_skip ); i_skip+= 4; break; \
 303         case 0: \
 304         default: var = def; break;\
 305     }
 306
 307 static int Demux( input_thread_t *p_input )
 308 {
 309     demux_sys_t *p_demux = p_input->p_demux_data;
 310     int i;
 311
 312     /* catch seek from user */
 313     if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
 314     {
 315         off_t i_offset;
 316         i_offset = ASF_TellAbsolute( p_input ) - p_demux->i_data_begin;
 317
 318         if( i_offset  < 0 )
 319         {
 320             i_offset = 0;
 321         }
 322         /* XXX work only when i_min_data_packet_size == i_max_data_packet_size */
 323         i_offset -= i_offset % p_demux->p_fp->i_min_data_packet_size;
 324         ASF_SeekAbsolute( p_input, p_demux->i_data_begin + i_offset );
 325
 326         p_demux->i_time = 0;
 327         for( i = 0; i < 127 ; i++ )
 328         {
 329 #define p_stream p_demux->stream[i]
 330             if( p_stream )
 331             {
 332                 p_stream->i_time = 0;
 333             }
 334 #undef p_stream
 335         }
 336
 337     }
 338     /* first wait for the good time to read a packet */
 339
 340     input_ClockManageRef( p_input,
 341                           p_input->stream.p_selected_program,
 342                           p_demux->i_pcr );
 343
 344     /* update pcr XXX in mpeg scale so in 90000 unit/s */
 345     p_demux->i_pcr = p_demux->i_time * 9 / 100;
 346
 347 //    /* we will read 100ms for each stream so */
 348 //    p_demux->i_time += 100 * 1000;
 349
 350     for( i = 0; i < 10; i++ ) // parse 10 packets
 351     {
 352         int i_data_packet_min = p_demux->p_fp->i_min_data_packet_size;
 353         u8  *p_peek;
 354         int i_skip;
 355
 356         int i_packet_size_left;
 357         int i_packet_flags;
 358         int i_packet_property;
 359
 360         int b_packet_multiple_payload;
 361         int i_packet_length;
 362         int i_packet_sequence;
 363         int i_packet_padding_length;
 364
 365         u32 i_packet_send_time;
 366         u16 i_packet_duration;
 367         int i_payload;
 368         int i_payload_count;
 369         int i_payload_length_type;
 370
 371
 372         if( input_Peek( p_input, &p_peek, i_data_packet_min ) < i_data_packet_min )
 373         {
 374             // EOF ?
 375             msg_Err( p_input, "cannot peek while getting new packet, EOF ?" );
 376             return( 0 );
 377         }
 378         i_skip = 0;
 379
 380         /* *** parse error correction if present *** */
 381         if( p_peek[0]&0x80 )
 382         {
 383             int i_error_correction_length_type;
 384             int i_error_correction_data_length;
 385             int i_opaque_data_present;
 386
 387             i_error_correction_data_length = p_peek[0] & 0x0f;  // 4bits
 388             i_opaque_data_present = ( p_peek[0] >> 4 )& 0x01;    // 1bit
 389             i_error_correction_length_type = ( p_peek[0] >> 5 ) & 0x03; // 2bits
 390             i_skip += 1; // skip error correction flags
 391
 392             if( i_error_correction_length_type != 0x00 ||
 393                 i_opaque_data_present != 0 ||
 394                 i_error_correction_data_length != 0x02 )
 395             {
 396                 goto loop_error_recovery;
 397             }
 398
 399             i_skip += i_error_correction_data_length;
 400         }
 401         else
 402         {
 403             msg_Warn( p_input, "p_peek[0]&0x80 != 0x80" );
 404         }
 405
 406         i_packet_flags = p_peek[i_skip]; i_skip++;
 407         i_packet_property = p_peek[i_skip]; i_skip++;
 408
 409         b_packet_multiple_payload = i_packet_flags&0x01;
 410
 411         /* read some value */
 412         GETVALUE2b( ( i_packet_flags >> 5 )&0x3, i_packet_length, i_data_packet_min );
 413         GETVALUE2b( ( i_packet_flags >> 1 )&0x3, i_packet_sequence, 0 );
 414         GETVALUE2b( ( i_packet_flags >> 3 )&0x3, i_packet_padding_length, 0 );
 415
 416         i_packet_send_time = GetDWLE( p_peek + i_skip ); i_skip += 4;
 417         i_packet_duration  = GetWLE( p_peek + i_skip ); i_skip += 2;
 418
 419         i_packet_size_left = i_packet_length;   // XXX données reellement lu
 420
 421         if( b_packet_multiple_payload )
 422         {
 423             i_payload_count = p_peek[i_skip] & 0x3f;
 424             i_payload_length_type = ( p_peek[i_skip] >> 6 )&0x03;
 425             i_skip++;
 426         }
 427         else
 428         {
 429             i_payload_count = 1;
 430             i_payload_length_type = 0x02; // unused
 431         }
 432
 433         for( i_payload = 0; i_payload < i_payload_count ; i_payload++ )
 434         {
 435             asf_stream_t   *p_stream;
 436
 437             int i_stream_number;
 438             int i_media_object_number;
 439             int i_media_object_offset;
 440             int i_replicated_data_length;
 441             int i_payload_data_length;
 442             int i_payload_data_pos;
 443             int i_sub_payload_data_length;
 444             int i_tmp;
 445
 446             mtime_t i_pts;
 447             mtime_t i_pts_delta;
 448
 449             i_stream_number = p_peek[i_skip] & 0x7f;
 450             i_skip++;
 451
 452             GETVALUE2b( ( i_packet_property >> 4 )&0x03, i_media_object_number, 0 );
 453             GETVALUE2b( ( i_packet_property >> 2 )&0x03, i_tmp, 0 );
 454             GETVALUE2b( i_packet_property&0x03, i_replicated_data_length, 0 );
 455
 456             if( i_replicated_data_length > 1 ) // should be at least 8 bytes
 457             {
 458                 i_pts = (mtime_t)GetDWLE( p_peek + i_skip + 4 ) * 1000;
 459                 i_skip += i_replicated_data_length;
 460                 i_pts_delta = 0;
 461
 462                 i_media_object_offset = i_tmp;
 463             }
 464             else if( i_replicated_data_length == 1 )
 465             {
 466
 467                 msg_Warn( p_input, "found compressed payload" );
 468
 469                 i_pts = (mtime_t)i_tmp * 1000;
 470                 i_pts_delta = (mtime_t)p_peek[i_skip] * 1000; i_skip++;
 471
 472                 i_media_object_offset = 0;
 473             }
 474             else
 475             {
 476                 i_pts = (mtime_t)i_packet_send_time * 1000;
 477                 i_pts_delta = 0;
 478
 479                 i_media_object_offset = i_tmp;
 480             }
 481
 482
 483             if( b_packet_multiple_payload )
 484             {
 485                 GETVALUE2b( i_payload_length_type, i_payload_data_length, 0 );
 486             }
 487             else
 488             {
 489                 msg_Warn( p_input, "single payload" );
 490                 i_payload_data_length = i_packet_length - i_packet_padding_length - i_skip;
 491             }
 492
 493              msg_Dbg( p_input,
 494                       "payload(%d/%d) stream_number:%d media_object_number:%d media_object_offset:%d replicated_data_length:%d payload_data_length %d",
 495                       i_payload + 1,
 496                       i_payload_count,
 497                       i_stream_number,
 498                       i_media_object_number,
 499                       i_media_object_offset,
 500                       i_replicated_data_length,
 501                       i_payload_data_length );
 502
 503
 504             if( !( p_stream = p_demux->stream[i_stream_number] ) )
 505             {
 506                 msg_Warn( p_input, "undeclared stream[Id 0x%x]", i_stream_number );
 507                 i_skip += i_payload_data_length;
 508                 continue;   // over payload
 509             }
 510
 511             if( !p_stream->p_es || !p_stream->p_es->p_decoder_fifo )
 512             {
 513                 i_skip += i_payload_data_length;
 514                 continue;
 515             }
 516
 517
 518             for( i_payload_data_pos = 0; i_payload_data_pos < i_payload_data_length; i_payload_data_pos += i_sub_payload_data_length )
 519             {
 520                 data_packet_t  *p_data;
 521                 int i_read;
 522                 // read sub payload length
 523                 if( i_replicated_data_length == 1 )
 524                 {
 525                     i_sub_payload_data_length = p_peek[i_skip]; i_skip++;
 526                     i_payload_data_pos++;
 527                 }
 528                 else
 529                 {
 530                     i_sub_payload_data_length = i_payload_data_length;
 531                 }
 532
 533
 534                 if( p_stream->p_pes && i_media_object_offset == 0 ) // I don't use i_media_object_number, sould I ?
 535                 {
 536                     // send complete packet to decoder
 537                     if( p_stream->p_pes->i_pes_size > 0 )
 538                     {
 539                         input_DecodePES( p_stream->p_es->p_decoder_fifo, p_stream->p_pes );
 540                         p_stream->p_pes = NULL;
 541                     }
 542                 }
 543
 544                 if( !p_stream->p_pes )  // add a new PES
 545                 {
 546                     mtime_t i_date;
 547                     p_stream->i_time = ( (mtime_t)i_pts + i_payload * (mtime_t)i_pts_delta );
 548
 549                     p_stream->p_pes = input_NewPES( p_input->p_method_data );
 550                     p_stream->p_pes->i_dts =
 551                         p_stream->p_pes->i_pts =
 552                             input_ClockGetTS( p_input,
 553                                               p_input->stream.p_selected_program,
 554                                               p_stream->i_time * 9 / 100 );
 555
 556                     p_stream->p_pes->p_next = NULL;
 557                     p_stream->p_pes->i_nb_data = 0;
 558                     p_stream->p_pes->i_pes_size = 0;
 559                 }
 560
 561                 i_read = i_sub_payload_data_length + i_skip;
 562                 if( input_SplitBuffer( p_input, &p_data, i_read ) < i_read )
 563                 {
 564                     msg_Err( p_input, "cannot read data" );
 565                     return( 0 );
 566                 }
 567                 p_data->p_payload_start += i_skip;
 568                 i_packet_size_left -= i_read;
 569
 570
 571                 if( !p_stream->p_pes->p_first )
 572                 {
 573                     p_stream->p_pes->p_first = p_stream->p_pes->p_last = p_data;
 574                 }
 575                 else
 576                 {
 577                     p_stream->p_pes->p_last->p_next = p_data;
 578                     p_stream->p_pes->p_last = p_data;
 579                 }
 580                 p_stream->p_pes->i_pes_size += i_sub_payload_data_length;
 581                 p_stream->p_pes->i_nb_data++;
 582
 583                 i_skip = 0;
 584                 if( i_packet_size_left <= 0 )
 585                 {
 586                     break;
 587                 }
 588                 if( input_Peek( p_input, &p_peek, i_packet_size_left ) < i_packet_size_left )
 589                 {
 590                     // EOF ?
 591                     msg_Err( p_input, "cannot peek, EOF ?" );
 592                     return( 0 );
 593                 }
 594
 595
 596             }
 597             if( i_packet_size_left <= 0 )
 598             {
 599                 break;
 600             }
 601         }
 602
 603 loop_ok:
 604         if( i_packet_size_left > 0 )
 605         {
 606             if( !ASF_SkipBytes( p_input, i_packet_size_left ) )
 607             {
 608                 msg_Err( p_input, "cannot skip data, EOF ?" );
 609                 return( 0 );
 610             }
 611         }
 612
 613
 614         continue;
 615
 616 loop_error_recovery:
 617         msg_Warn( p_input, "unsupported packet header" );
 618         if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
 619         {
 620             msg_Err( p_input, "unsupported packet header, fatal error" );
 621             return( -1 );
 622         }
 623         ASF_SkipBytes( p_input, i_data_packet_min );
 624
 625         continue;
 626     }   // loop over packet
 627
 628     p_demux->i_time = 0;
 629     for( i = 0; i < 127 ; i++ )
 630     {
 631 #define p_stream p_demux->stream[i]
 632         if( p_stream && p_stream->p_es && p_stream->p_es->p_decoder_fifo )
 633         {
 634             p_demux->i_time = __MAX( p_demux->i_time, p_stream->i_time );
 635         }
 636 #undef p_stream
 637     }
 638
 639     return( 1 );
 640 }
 641
 642 /*****************************************************************************
 643  * MP4End: frees unused data
 644  *****************************************************************************/
 645 static void Deactivate( vlc_object_t * p_this )
 646 {
 647 #define FREE( p ) \
 648     if( p ) { free( p ); }
 649
 650     input_thread_t *  p_input = (input_thread_t *)p_this;
 651     demux_sys_t *p_demux = p_input->p_demux_data;
 652
 653     msg_Dbg( p_input, "Freeing all memory" );
 654     ASF_FreeObjectRoot( p_input, &p_demux->root );
 655
 656 #undef FREE
 657 }
 658