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

   1 /*****************************************************************************
   2  * libasf.c : asf stream demux module for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2001-2003 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *          Gildas Bazin <gbazin@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #include <vlc/vlc.h>
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>                                      /* malloc(), free() */
  29
  30 #include <vlc/input.h>
  31
  32 #include "codecs.h"                        /* BITMAPINFOHEADER, WAVEFORMATEX */
  33 #include "libasf.h"
  34
  35 #define ASF_DEBUG 1
  36
  37 #define GUID_FMT "0x%x-0x%x-0x%x-0x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x%2.2x"
  38 #define GUID_PRINT( guid )  \
  39     (guid).v1,              \
  40     (guid).v2,              \
  41     (guid).v3,              \
  42     (guid).v4[0],(guid).v4[1],(guid).v4[2],(guid).v4[3],    \
  43     (guid).v4[4],(guid).v4[5],(guid).v4[6],(guid).v4[7]
  44
  45 /****************************************************************************
  46  *
  47  ****************************************************************************/
  48 static int ASF_ReadObject( stream_t *, asf_object_t *,  asf_object_t * );
  49
  50 /****************************************************************************
  51  * GUID functions
  52  ****************************************************************************/
  53 void ASF_GetGUID( guid_t *p_guid, uint8_t *p_data )
  54 {
  55     p_guid->v1 = GetDWLE( p_data );
  56     p_guid->v2 = GetWLE( p_data + 4);
  57     p_guid->v3 = GetWLE( p_data + 6);
  58     memcpy( p_guid->v4, p_data + 8, 8 );
  59 }
  60
  61 int ASF_CmpGUID( const guid_t *p_guid1, const guid_t *p_guid2 )
  62 {
  63     if( (p_guid1->v1 != p_guid2->v1 )||
  64         (p_guid1->v2 != p_guid2->v2 )||
  65         (p_guid1->v3 != p_guid2->v3 )||
  66         ( memcmp( p_guid1->v4, p_guid2->v4,8 )) )
  67     {
  68         return( 0 );
  69     }
  70     return( 1 ); /* match */
  71 }
  72
  73 /****************************************************************************
  74  *
  75  ****************************************************************************/
  76 static int ASF_ReadObjectCommon( stream_t *s, asf_object_t *p_obj )
  77 {
  78     asf_object_common_t *p_common = (asf_object_common_t*)p_obj;
  79     uint8_t             *p_peek;
  80
  81     if( stream_Peek( s, &p_peek, 24 ) < 24 )
  82     {
  83         return( VLC_EGENERIC );
  84     }
  85     ASF_GetGUID( &p_common->i_object_id, p_peek );
  86     p_common->i_object_size = GetQWLE( p_peek + 16 );
  87     p_common->i_object_pos  = stream_Tell( s );
  88     p_common->p_next = NULL;
  89
  90 #ifdef ASF_DEBUG
  91     msg_Dbg( s,
  92              "found object guid: " GUID_FMT " size:"I64Fd,
  93              GUID_PRINT( p_common->i_object_id ),
  94              p_common->i_object_size );
  95 #endif
  96
  97     return( VLC_SUCCESS );
  98 }
  99
 100 static int ASF_NextObject( stream_t *s, asf_object_t *p_obj )
 101 {
 102     asf_object_t obj;
 103     if( p_obj == NULL )
 104     {
 105         if( ASF_ReadObjectCommon( s, &obj ) )
 106         {
 107             return( VLC_EGENERIC );
 108         }
 109         p_obj = &obj;
 110     }
 111
 112     if( p_obj->common.i_object_size <= 0 )
 113     {
 114         return VLC_EGENERIC;
 115     }
 116     if( p_obj->common.p_father &&
 117         p_obj->common.p_father->common.i_object_size != 0 )
 118     {
 119         if( p_obj->common.p_father->common.i_object_pos +
 120             p_obj->common.p_father->common.i_object_size <
 121                 p_obj->common.i_object_pos + p_obj->common.i_object_size + 24 )
 122                                 /* 24 is min size of an object */
 123         {
 124             return VLC_EGENERIC;
 125         }
 126
 127     }
 128
 129     return stream_Seek( s, p_obj->common.i_object_pos +
 130                         p_obj->common.i_object_size );
 131 }
 132
 133 static void ASF_FreeObject_Null( asf_object_t *pp_obj )
 134 {
 135     return;
 136 }
 137
 138 static int  ASF_ReadObject_Header( stream_t *s, asf_object_t *p_obj )
 139 {
 140     asf_object_header_t *p_hdr = (asf_object_header_t*)p_obj;
 141     asf_object_t        *p_subobj;
 142     int                 i_peek;
 143     uint8_t             *p_peek;
 144
 145     if( ( i_peek = stream_Peek( s, &p_peek, 30 ) ) < 30 )
 146     {
 147        return( VLC_EGENERIC );
 148     }
 149
 150     p_hdr->i_sub_object_count = GetDWLE( p_peek + 24 );
 151     p_hdr->i_reserved1 = p_peek[28];
 152     p_hdr->i_reserved2 = p_peek[29];
 153     p_hdr->p_first = NULL;
 154     p_hdr->p_last  = NULL;
 155
 156 #ifdef ASF_DEBUG
 157     msg_Dbg( s,
 158              "read \"header object\" subobj:%d, reserved1:%d, reserved2:%d",
 159              p_hdr->i_sub_object_count,
 160              p_hdr->i_reserved1,
 161              p_hdr->i_reserved2 );
 162 #endif
 163
 164     /* Cannot fail as peek succeed */
 165     stream_Read( s, NULL, 30 );
 166
 167     /* Now load sub object */
 168     for( ; ; )
 169     {
 170         p_subobj = malloc( sizeof( asf_object_t ) );
 171
 172         if( ASF_ReadObject( s, p_subobj, (asf_object_t*)p_hdr ) )
 173         {
 174             free( p_subobj );
 175             break;
 176         }
 177         if( ASF_NextObject( s, p_subobj ) ) /* Go to the next object */
 178         {
 179             break;
 180         }
 181     }
 182     return VLC_SUCCESS;
 183 }
 184
 185 static int ASF_ReadObject_Data( stream_t *s, asf_object_t *p_obj )
 186 {
 187     asf_object_data_t *p_data = (asf_object_data_t*)p_obj;
 188     int               i_peek;
 189     uint8_t           *p_peek;
 190
 191     if( ( i_peek = stream_Peek( s, &p_peek, 50 ) ) < 50 )
 192     {
 193        return VLC_EGENERIC;
 194     }
 195     ASF_GetGUID( &p_data->i_file_id, p_peek + 24 );
 196     p_data->i_total_data_packets = GetQWLE( p_peek + 40 );
 197     p_data->i_reserved = GetWLE( p_peek + 48 );
 198
 199 #ifdef ASF_DEBUG
 200     msg_Dbg( s,
 201              "read \"data object\" file_id:" GUID_FMT " total data packet:"
 202              I64Fd" reserved:%d",
 203              GUID_PRINT( p_data->i_file_id ),
 204              p_data->i_total_data_packets,
 205              p_data->i_reserved );
 206 #endif
 207
 208     return VLC_SUCCESS;
 209 }
 210
 211 static int ASF_ReadObject_Index( stream_t *s, asf_object_t *p_obj )
 212 {
 213     asf_object_index_t *p_index = (asf_object_index_t*)p_obj;
 214     int                i_peek;
 215     uint8_t            *p_peek;
 216
 217     if( ( i_peek = stream_Peek( s, &p_peek, 56 ) ) < 56 )
 218     {
 219        return VLC_EGENERIC;
 220     }
 221     ASF_GetGUID( &p_index->i_file_id, p_peek + 24 );
 222     p_index->i_index_entry_time_interval = GetQWLE( p_peek + 40 );
 223     p_index->i_max_packet_count = GetDWLE( p_peek + 48 );
 224     p_index->i_index_entry_count = GetDWLE( p_peek + 52 );
 225     p_index->index_entry = NULL; /* FIXME */
 226
 227 #ifdef ASF_DEBUG
 228     msg_Dbg( s,
 229             "read \"index object\" file_id:" GUID_FMT
 230             " index_entry_time_interval:"I64Fd" max_packet_count:%d "
 231             "index_entry_count:%ld",
 232             GUID_PRINT( p_index->i_file_id ),
 233             p_index->i_index_entry_time_interval,
 234             p_index->i_max_packet_count,
 235             (long int)p_index->i_index_entry_count );
 236 #endif
 237
 238     return VLC_SUCCESS;
 239 }
 240
 241 static void ASF_FreeObject_Index( asf_object_t *p_obj )
 242 {
 243     asf_object_index_t *p_index = (asf_object_index_t*)p_obj;
 244
 245     FREENULL( p_index->index_entry );
 246 }
 247
 248 static int ASF_ReadObject_file_properties( stream_t *s, asf_object_t *p_obj )
 249 {
 250     asf_object_file_properties_t *p_fp = (asf_object_file_properties_t*)p_obj;
 251     int      i_peek;
 252     uint8_t  *p_peek;
 253
 254     if( ( i_peek = stream_Peek( s, &p_peek,  92) ) < 92 )
 255     {
 256        return VLC_EGENERIC;
 257     }
 258     ASF_GetGUID( &p_fp->i_file_id, p_peek + 24 );
 259     p_fp->i_file_size = GetQWLE( p_peek + 40 );
 260     p_fp->i_creation_date = GetQWLE( p_peek + 48 );
 261     p_fp->i_data_packets_count = GetQWLE( p_peek + 56 );
 262     p_fp->i_play_duration = GetQWLE( p_peek + 64 );
 263     p_fp->i_send_duration = GetQWLE( p_peek + 72 );
 264     p_fp->i_preroll = GetQWLE( p_peek + 80 );
 265     p_fp->i_flags = GetDWLE( p_peek + 88 );
 266     p_fp->i_min_data_packet_size = GetDWLE( p_peek + 92 );
 267     p_fp->i_max_data_packet_size = GetDWLE( p_peek + 96 );
 268     p_fp->i_max_bitrate = GetDWLE( p_peek + 100 );
 269
 270 #ifdef ASF_DEBUG
 271     msg_Dbg( s,
 272             "read \"file properties object\" file_id:" GUID_FMT
 273             " file_size:"I64Fd" creation_date:"I64Fd" data_packets_count:"
 274             I64Fd" play_duration:"I64Fd" send_duration:"I64Fd" preroll:"
 275             I64Fd" flags:%d min_data_packet_size:%d max_data_packet_size:%d "
 276             "max_bitrate:%d",
 277             GUID_PRINT( p_fp->i_file_id ), p_fp->i_file_size,
 278             p_fp->i_creation_date, p_fp->i_data_packets_count,
 279             p_fp->i_play_duration, p_fp->i_send_duration,
 280             p_fp->i_preroll, p_fp->i_flags,
 281             p_fp->i_min_data_packet_size, p_fp->i_max_data_packet_size,
 282             p_fp->i_max_bitrate );
 283 #endif
 284
 285     return VLC_SUCCESS;
 286 }
 287
 288 static void ASF_FreeObject_metadata( asf_object_t *p_obj )
 289 {
 290     asf_object_metadata_t *p_meta =
 291         (asf_object_metadata_t *)p_obj;
 292     unsigned int i;
 293
 294     for( i = 0; i < p_meta->i_record_entries_count; i++ )
 295     {
 296         if( p_meta->record[i].psz_name ) free( p_meta->record[i].psz_name );
 297         if( p_meta->record[i].p_data ) free( p_meta->record[i].p_data );
 298     }
 299     if( p_meta->record ) free( p_meta->record );
 300 }
 301
 302 static int ASF_ReadObject_metadata( stream_t *s, asf_object_t *p_obj )
 303 {
 304     asf_object_metadata_t *p_meta =
 305         (asf_object_metadata_t *)p_obj;
 306
 307     int i_peek, i_entries, i;
 308     uint8_t *p_peek;
 309 #ifdef ASF_DEBUG
 310     unsigned int j;
 311 #endif
 312
 313     p_meta->i_record_entries_count = 0;
 314     p_meta->record = 0;
 315
 316     if( stream_Peek( s, &p_peek, p_meta->i_object_size ) <
 317         (int)p_meta->i_object_size )
 318     {
 319        return VLC_EGENERIC;
 320     }
 321
 322     i_peek = 24;
 323     i_entries = GetWLE( p_peek + i_peek ); i_peek += 2;
 324     for( i = 0; i < i_entries && i_peek < (int)p_meta->i_object_size -12; i++ )
 325     {
 326         asf_metadata_record_t record;
 327         int i_name, i_data, j;
 328
 329         if( GetWLE( p_peek + i_peek ) != 0 )
 330         {
 331             ASF_FreeObject_metadata( p_obj );
 332             return VLC_EGENERIC;
 333         }
 334
 335         i_peek += 2;
 336         record.i_stream = GetWLE( p_peek + i_peek ); i_peek += 2;
 337         i_name = GetWLE( p_peek + i_peek ); i_peek += 2;
 338         record.i_type = GetWLE( p_peek + i_peek ); i_peek += 2;
 339         i_data = GetDWLE( p_peek + i_peek ); i_peek += 4;
 340
 341         if( record.i_type > ASF_METADATA_TYPE_WORD ||
 342             i_peek + i_data + i_name > (int)p_meta->i_object_size )
 343         {
 344             ASF_FreeObject_metadata( p_obj );
 345             return VLC_EGENERIC;
 346         }
 347
 348         record.i_val = 0;
 349         record.i_data = 0;
 350         record.p_data = 0;
 351
 352         /* get name */
 353         record.psz_name = malloc( i_name/2 + 1 );
 354         for( j = 0; j < i_name/2; j++ )
 355         {
 356             record.psz_name[j] = GetWLE( p_peek + i_peek ); i_peek += 2;
 357         }
 358         record.psz_name[j] = 0; /* just to make sure */
 359
 360         /* get data */
 361         if( record.i_type == ASF_METADATA_TYPE_STRING )
 362         {
 363             record.p_data = malloc( i_data/2 + 1 );
 364             record.i_data = i_data/2;
 365             for( j = 0; j < i_data/2; j++ )
 366             {
 367                 record.p_data[j] = GetWLE( p_peek + i_peek ); i_peek += 2;
 368             }
 369             record.p_data[j] = 0; /* just to make sure */
 370         }
 371         else if( record.i_type == ASF_METADATA_TYPE_BYTE )
 372         {
 373             record.p_data = malloc( i_data );
 374             record.i_data = i_data;
 375             memcpy( record.p_data, p_peek + i_peek, i_data );
 376             p_peek += i_data;
 377         }
 378         else
 379         {
 380             if( record.i_type == ASF_METADATA_TYPE_QWORD )
 381             {
 382                 record.i_val = GetQWLE( p_peek + i_peek ); i_peek += 8;
 383             }
 384             else if( record.i_type == ASF_METADATA_TYPE_DWORD )
 385             {
 386                 record.i_val = GetDWLE( p_peek + i_peek ); i_peek += 4;
 387             }
 388             else
 389             {
 390                 record.i_val = GetWLE( p_peek + i_peek ); i_peek += 2;
 391             }
 392         }
 393
 394         p_meta->i_record_entries_count++;
 395         p_meta->record =
 396             realloc( p_meta->record, p_meta->i_record_entries_count *
 397                      sizeof(asf_metadata_record_t) );
 398         memcpy( &p_meta->record[p_meta->i_record_entries_count-1],
 399                 &record, sizeof(asf_metadata_record_t) );
 400     }
 401
 402 #ifdef ASF_DEBUG
 403     msg_Dbg( s,
 404             "read \"metadata object\" %d entries",
 405             p_meta->i_record_entries_count );
 406     for( j = 0; j < p_meta->i_record_entries_count; j++ )
 407     {
 408         asf_metadata_record_t *p_rec = &p_meta->record[j];
 409
 410         if( p_rec->i_type == ASF_METADATA_TYPE_STRING )
 411             msg_Dbg( s, "  - %s=%s",
 412                      p_rec->psz_name, p_rec->p_data );
 413         else if( p_rec->i_type == ASF_METADATA_TYPE_BYTE )
 414             msg_Dbg( s, "  - %s (%i bytes)",
 415                      p_rec->psz_name, p_rec->i_data );
 416         else
 417             msg_Dbg( s, "  - %s="I64Fd,
 418                      p_rec->psz_name, p_rec->i_val );
 419     }
 420 #endif
 421
 422     return VLC_SUCCESS;
 423 }
 424
 425 static int ASF_ReadObject_header_extension( stream_t *s, asf_object_t *p_obj )
 426 {
 427     asf_object_header_extension_t *p_he =
 428         (asf_object_header_extension_t *)p_obj;
 429     int     i_peek;
 430     uint8_t *p_peek;
 431
 432     if( ( i_peek = stream_Peek( s, &p_peek, p_he->i_object_size ) ) <  46)
 433     {
 434        return VLC_EGENERIC;
 435     }
 436     ASF_GetGUID( &p_he->i_reserved1, p_peek + 24 );
 437     p_he->i_reserved2 = GetWLE( p_peek + 40 );
 438     p_he->i_header_extension_size = GetDWLE( p_peek + 42 );
 439     if( p_he->i_header_extension_size )
 440     {
 441         p_he->p_header_extension_data =
 442             malloc( p_he->i_header_extension_size );
 443         memcpy( p_he->p_header_extension_data, p_peek + 46,
 444                 p_he->i_header_extension_size );
 445     }
 446     else
 447     {
 448         p_he->p_header_extension_data = NULL;
 449     }
 450
 451 #ifdef ASF_DEBUG
 452     msg_Dbg( s,
 453             "read \"header extension object\" reserved1:" GUID_FMT
 454             " reserved2:%d header_extension_size:%d",
 455             GUID_PRINT( p_he->i_reserved1 ), p_he->i_reserved2,
 456             p_he->i_header_extension_size );
 457 #endif
 458
 459     if( !p_he->i_header_extension_size ) return VLC_SUCCESS;
 460
 461     /* Read the extension objects */
 462     stream_Read( s, NULL, 46 );
 463     for( ; ; )
 464     {
 465         asf_object_t *p_obj = malloc( sizeof( asf_object_t ) );
 466
 467         if( ASF_ReadObject( s, p_obj, (asf_object_t*)p_he ) )
 468         {
 469             free( p_obj );
 470             break;
 471         }
 472
 473         if( ASF_NextObject( s, p_obj ) ) /* Go to the next object */
 474         {
 475             break;
 476         }
 477     }
 478
 479     return VLC_SUCCESS;
 480 }
 481
 482 static void ASF_FreeObject_header_extension( asf_object_t *p_obj )
 483 {
 484     asf_object_header_extension_t *p_he =
 485         (asf_object_header_extension_t *)p_obj;
 486
 487     FREENULL( p_he->p_header_extension_data );
 488 }
 489
 490 static int ASF_ReadObject_stream_properties( stream_t *s, asf_object_t *p_obj )
 491 {
 492     asf_object_stream_properties_t *p_sp =
 493                     (asf_object_stream_properties_t*)p_obj;
 494     int     i_peek;
 495     uint8_t *p_peek;
 496
 497     if( ( i_peek = stream_Peek( s, &p_peek,  p_sp->i_object_size ) ) < 74 )
 498     {
 499        return VLC_EGENERIC;
 500     }
 501     ASF_GetGUID( &p_sp->i_stream_type, p_peek + 24 );
 502     ASF_GetGUID( &p_sp->i_error_correction_type, p_peek + 40 );
 503     p_sp->i_time_offset = GetQWLE( p_peek + 56 );
 504     p_sp->i_type_specific_data_length = GetDWLE( p_peek + 64 );
 505     p_sp->i_error_correction_data_length = GetDWLE( p_peek + 68 );
 506     p_sp->i_flags = GetWLE( p_peek + 72 );
 507         p_sp->i_stream_number = p_sp->i_flags&0x07f;
 508     p_sp->i_reserved = GetDWLE( p_peek + 74 );
 509     if( p_sp->i_type_specific_data_length )
 510     {
 511         p_sp->p_type_specific_data =
 512             malloc( p_sp->i_type_specific_data_length );
 513         memcpy( p_sp->p_type_specific_data, p_peek + 78,
 514                 p_sp->i_type_specific_data_length );
 515     }
 516     else
 517     {
 518         p_sp->p_type_specific_data = NULL;
 519     }
 520     if( p_sp->i_error_correction_data_length )
 521     {
 522         p_sp->p_error_correction_data =
 523             malloc( p_sp->i_error_correction_data_length );
 524         memcpy( p_sp->p_error_correction_data,
 525                 p_peek + 78 + p_sp->i_type_specific_data_length,
 526                 p_sp->i_error_correction_data_length );
 527     }
 528     else
 529     {
 530         p_sp->p_error_correction_data = NULL;
 531     }
 532
 533 #ifdef ASF_DEBUG
 534     msg_Dbg( s,
 535             "read \"stream Properties object\" stream_type:" GUID_FMT
 536             " error_correction_type:" GUID_FMT " time_offset:"I64Fd
 537             " type_specific_data_length:%d error_correction_data_length:%d"
 538             " flags:0x%x stream_number:%d",
 539             GUID_PRINT( p_sp->i_stream_type ),
 540             GUID_PRINT( p_sp->i_error_correction_type ),
 541             p_sp->i_time_offset,
 542             p_sp->i_type_specific_data_length,
 543             p_sp->i_error_correction_data_length,
 544             p_sp->i_flags,
 545             p_sp->i_stream_number );
 546
 547 #endif
 548     return VLC_SUCCESS;
 549 }
 550
 551 static void ASF_FreeObject_stream_properties( asf_object_t *p_obj )
 552 {
 553     asf_object_stream_properties_t *p_sp =
 554                 (asf_object_stream_properties_t*)p_obj;
 555
 556     FREENULL( p_sp->p_type_specific_data );
 557     FREENULL( p_sp->p_error_correction_data );
 558 }
 559
 560
 561 static int ASF_ReadObject_codec_list( stream_t *s, asf_object_t *p_obj )
 562 {
 563     asf_object_codec_list_t *p_cl = (asf_object_codec_list_t*)p_obj;
 564     int     i_peek;
 565     uint8_t *p_peek, *p_data;
 566
 567     unsigned int i_codec;
 568
 569     if( ( i_peek = stream_Peek( s, &p_peek, p_cl->i_object_size ) ) < 44 )
 570     {
 571        return VLC_EGENERIC;
 572     }
 573
 574     ASF_GetGUID( &p_cl->i_reserved, p_peek + 24 );
 575     p_cl->i_codec_entries_count = GetWLE( p_peek + 40 );
 576     if( p_cl->i_codec_entries_count > 0 )
 577     {
 578         p_cl->codec = calloc( p_cl->i_codec_entries_count,
 579                               sizeof( asf_codec_entry_t ) );
 580         memset( p_cl->codec, 0,
 581                 p_cl->i_codec_entries_count * sizeof( asf_codec_entry_t ) );
 582
 583         p_data = p_peek + 44;
 584         for( i_codec = 0; i_codec < p_cl->i_codec_entries_count; i_codec++ )
 585         {
 586 #define codec p_cl->codec[i_codec]
 587             int i_len, i;
 588
 589             codec.i_type = GetWLE( p_data ); p_data += 2;
 590             /* codec name */
 591             i_len = GetWLE( p_data ); p_data += 2;
 592             codec.psz_name = calloc( sizeof( char ), i_len + 1);
 593             for( i = 0; i < i_len; i++ )
 594             {
 595                 codec.psz_name[i] = GetWLE( p_data + 2*i );
 596             }
 597             codec.psz_name[i_len] = '\0';
 598             p_data += 2 * i_len;
 599
 600             /* description */
 601             i_len = GetWLE( p_data ); p_data += 2;
 602             codec.psz_description = calloc( sizeof( char ), i_len + 1);
 603             for( i = 0; i < i_len; i++ )
 604             {
 605                 codec.psz_description[i] = GetWLE( p_data + 2*i );
 606             }
 607             codec.psz_description[i_len] = '\0';
 608             p_data += 2 * i_len;
 609
 610             /* opaque information */
 611             codec.i_information_length = GetWLE( p_data ); p_data += 2;
 612             if( codec.i_information_length > 0 )
 613             {
 614                 codec.p_information = malloc( codec.i_information_length );
 615                 memcpy( codec.p_information, p_data, codec.i_information_length );
 616                 p_data += codec.i_information_length;
 617             }
 618             else
 619             {
 620                 codec.p_information = NULL;
 621             }
 622 #undef  codec
 623         }
 624     }
 625     else
 626     {
 627         p_cl->codec = NULL;
 628     }
 629
 630 #ifdef ASF_DEBUG
 631     msg_Dbg( s, "read \"codec list object\" reserved_guid:" GUID_FMT
 632              " codec_entries_count:%d",
 633             GUID_PRINT( p_cl->i_reserved ), p_cl->i_codec_entries_count );
 634
 635     for( i_codec = 0; i_codec < p_cl->i_codec_entries_count; i_codec++ )
 636     {
 637 #define codec p_cl->codec[i_codec]
 638         msg_Dbg( s, "  - codec[%d] %s name:\"%s\" "
 639                  "description:\"%s\" information_length:%d",
 640                  i_codec, ( codec.i_type == ASF_CODEC_TYPE_VIDEO ) ?
 641                  "video" : ( ( codec.i_type == ASF_CODEC_TYPE_AUDIO ) ?
 642                  "audio" : "unknown" ),
 643                  codec.psz_name, codec.psz_description,
 644                  codec.i_information_length );
 645 #undef  codec
 646     }
 647 #endif
 648
 649     return VLC_SUCCESS;
 650 }
 651
 652 static void ASF_FreeObject_codec_list( asf_object_t *p_obj )
 653 {
 654     asf_object_codec_list_t *p_cl = (asf_object_codec_list_t*)p_obj;
 655     unsigned int i_codec;
 656
 657     for( i_codec = 0; i_codec < p_cl->i_codec_entries_count; i_codec++ )
 658     {
 659 #define codec p_cl->codec[i_codec]
 660         FREENULL( codec.psz_name );
 661         FREENULL( codec.psz_description );
 662         FREENULL( codec.p_information );
 663 #undef  codec
 664     }
 665     FREENULL( p_cl->codec );
 666 }
 667
 668 /* Microsoft should go to hell. This time the length give number of bytes
 669  * and for the some others object, length give char16 count ... */
 670 static int ASF_ReadObject_content_description(stream_t *s, asf_object_t *p_obj)
 671 {
 672     asf_object_content_description_t *p_cd =
 673         (asf_object_content_description_t *)p_obj;
 674     uint8_t *p_peek, *p_data;
 675     int i_peek, i_title, i_artist, i_copyright, i_description, i_rating;
 676     vlc_iconv_t cd = (vlc_iconv_t)-1;
 677     const char *ib = NULL;
 678     char *ob = NULL;
 679     size_t i_ibl, i_obl, i_len;
 680
 681     cd = vlc_iconv_open("UTF-8", "UTF-16LE");
 682     if ( cd == (vlc_iconv_t)-1 ) {
 683         msg_Err( s, "vlc_iconv_open failed" );
 684         return VLC_EGENERIC;
 685     }
 686
 687 /* FIXME i_size*3 is the worst case. */
 688 #define GETSTRINGW( psz_str, i_size ) \
 689     psz_str = (char *)calloc( i_size*3+1, sizeof( char ) ); \
 690     ib = (const char *)p_data; \
 691     ob = psz_str; \
 692     i_ibl = i_size; \
 693     i_obl = i_size*3; \
 694     i_len = vlc_iconv(cd, &ib, &i_ibl, &ob, &i_obl); \
 695     p_data += i_size;
 696
 697     if( ( i_peek = stream_Peek( s, &p_peek, p_cd->i_object_size ) ) < 34 )
 698     {
 699        return VLC_EGENERIC;
 700     }
 701     p_data = p_peek + 24;
 702
 703     i_title = GetWLE( p_data ); p_data += 2;
 704     i_artist= GetWLE( p_data ); p_data += 2;
 705     i_copyright     = GetWLE( p_data ); p_data += 2;
 706     i_description   = GetWLE( p_data ); p_data += 2;
 707     i_rating        = GetWLE( p_data ); p_data += 2;
 708
 709     GETSTRINGW( p_cd->psz_title, i_title );
 710     GETSTRINGW( p_cd->psz_artist, i_artist );
 711     GETSTRINGW( p_cd->psz_copyright, i_copyright );
 712     GETSTRINGW( p_cd->psz_description, i_description );
 713     GETSTRINGW( p_cd->psz_rating, i_rating );
 714
 715 #undef  GETSTRINGW
 716
 717 #ifdef ASF_DEBUG
 718     msg_Dbg( s,
 719              "read \"content description object\" title:\"%s\" artist:\"%s\" copyright:\"%s\" description:\"%s\" rating:\"%s\"",
 720              p_cd->psz_title,
 721              p_cd->psz_artist,
 722              p_cd->psz_copyright,
 723              p_cd->psz_description,
 724              p_cd->psz_rating );
 725 #endif
 726
 727     vlc_iconv_close(cd);
 728     return VLC_SUCCESS;
 729 }
 730
 731 static void ASF_FreeObject_content_description( asf_object_t *p_obj)
 732 {
 733     asf_object_content_description_t *p_cd =
 734         (asf_object_content_description_t *)p_obj;
 735
 736     FREENULL( p_cd->psz_title );
 737     FREENULL( p_cd->psz_artist );
 738     FREENULL( p_cd->psz_copyright );
 739     FREENULL( p_cd->psz_description );
 740     FREENULL( p_cd->psz_rating );
 741 }
 742
 743 /* Language list: */
 744 static int ASF_ReadObject_language_list(stream_t *s, asf_object_t *p_obj)
 745 {
 746     asf_object_language_list_t *p_ll =
 747         (asf_object_language_list_t*)p_obj;
 748     uint8_t *p_peek, *p_data;
 749     int i_peek;
 750     int i;
 751
 752     if( ( i_peek = stream_Peek( s, &p_peek, p_ll->i_object_size ) ) < 26 )
 753        return VLC_EGENERIC;
 754
 755     p_data = &p_peek[24];
 756
 757     p_ll->i_language = GetWLE( &p_data[0] ); p_data += 2;
 758     if( p_ll->i_language > 0 )
 759     {
 760         p_ll->ppsz_language = calloc( p_ll->i_language, sizeof( char *) );
 761
 762         for( i = 0; i < p_ll->i_language; i++ )
 763         {
 764             char *psz;
 765             int i_size = *p_data++;
 766             int i_len;
 767
 768             psz = calloc( i_size/2 + 1, sizeof( char ) );
 769             for( i_len = 0; i_len < i_size/2; i_len++ )
 770             {
 771                 psz[i_len] = GetWLE( p_data + 2*i_len );
 772             }
 773             psz[i_size/2] = '\0'; \
 774             p_data += i_size;
 775
 776             p_ll->ppsz_language[i] = psz;
 777         }
 778     }
 779
 780 #ifdef ASF_DEBUG
 781     msg_Dbg( s, "read \"language list object\" %d entries",
 782              p_ll->i_language );
 783     for( i = 0; i < p_ll->i_language; i++ )
 784         msg_Dbg( s, "  - '%s'",
 785                  p_ll->ppsz_language[i] );
 786 #endif
 787     return VLC_SUCCESS;
 788 }
 789
 790 static void ASF_FreeObject_language_list( asf_object_t *p_obj)
 791 {
 792     asf_object_language_list_t *p_ll =
 793         (asf_object_language_list_t *)p_obj;
 794     int i;
 795
 796     for( i = 0; i < p_ll->i_language; i++ )
 797         FREENULL( p_ll->ppsz_language[i] );
 798     FREENULL( p_ll->ppsz_language );
 799 }
 800
 801 /* Stream bitrate properties */
 802 static int ASF_ReadObject_stream_bitrate_properties( stream_t *s,
 803                                                      asf_object_t *p_obj)
 804 {
 805     asf_object_stream_bitrate_properties_t *p_sb =
 806         (asf_object_stream_bitrate_properties_t *)p_obj;
 807     uint8_t *p_peek, *p_data;
 808     int i_peek;
 809     int i;
 810
 811     if( ( i_peek = stream_Peek( s, &p_peek, p_sb->i_object_size ) ) < 26 )
 812        return VLC_EGENERIC;
 813
 814     p_data = &p_peek[24];
 815
 816     p_sb->i_bitrate = GetWLE( &p_data[0] ); p_data += 2;
 817     if( p_sb->i_bitrate > 127 ) p_sb->i_bitrate = 127;  /* Buggy ? */
 818     for( i = 0; i < p_sb->i_bitrate; i++ )
 819     {
 820         p_sb->bitrate[i].i_stream_number = GetWLE( &p_data[0] )& 0x7f;
 821         p_sb->bitrate[i].i_avg_bitrate = GetDWLE( &p_data[2] );
 822
 823         p_data += 2+4;
 824     }
 825
 826 #ifdef ASF_DEBUG
 827     msg_Dbg( s,"read \"stream bitrate properties object\"" );
 828     for( i = 0; i < p_sb->i_bitrate; i++ )
 829     {
 830         msg_Dbg( s,"  - stream=%d bitrate=%d",
 831                  p_sb->bitrate[i].i_stream_number,
 832                  p_sb->bitrate[i].i_avg_bitrate );
 833     }
 834 #endif
 835     return VLC_SUCCESS;
 836 }
 837 static void ASF_FreeObject_stream_bitrate_properties( asf_object_t *p_obj)
 838 {
 839 }
 840
 841 static int ASF_ReadObject_extended_stream_properties( stream_t *s,
 842                                                       asf_object_t *p_obj)
 843 {
 844     asf_object_extended_stream_properties_t *p_esp =
 845         (asf_object_extended_stream_properties_t*)p_obj;
 846     uint8_t *p_peek, *p_data;
 847     int i_peek, i;
 848
 849     if( ( i_peek = stream_Peek( s, &p_peek, p_esp->i_object_size ) ) < 88 )
 850        return VLC_EGENERIC;
 851
 852     p_data = &p_peek[24];
 853
 854     p_esp->i_start_time = GetQWLE( &p_data[0] );
 855     p_esp->i_end_time = GetQWLE( &p_data[8] );
 856     p_esp->i_data_bitrate = GetDWLE( &p_data[16] );
 857     p_esp->i_buffer_size = GetDWLE( &p_data[20] );
 858     p_esp->i_initial_buffer_fullness = GetDWLE( &p_data[24] );
 859     p_esp->i_alternate_data_bitrate = GetDWLE( &p_data[28] );
 860     p_esp->i_alternate_buffer_size = GetDWLE( &p_data[32] );
 861     p_esp->i_alternate_initial_buffer_fullness = GetDWLE( &p_data[36] );
 862     p_esp->i_maximum_object_size = GetDWLE( &p_data[40] );
 863     p_esp->i_flags = GetDWLE( &p_data[44] );
 864     p_esp->i_stream_number = GetWLE( &p_data[48] );
 865     p_esp->i_language_index = GetWLE( &p_data[50] );
 866     p_esp->i_average_time_per_frame= GetQWLE( &p_data[52] );
 867     p_esp->i_stream_name_count = GetWLE( &p_data[60] );
 868     p_esp->i_payload_extension_system_count = GetWLE( &p_data[62] );
 869
 870     p_data += 64;
 871
 872     p_esp->pi_stream_name_language = calloc( sizeof(int),
 873                                              p_esp->i_stream_name_count );
 874     p_esp->ppsz_stream_name = calloc( sizeof(char*),
 875                                       p_esp->i_stream_name_count );
 876     for( i = 0; i < p_esp->i_stream_name_count; i++ )
 877     {
 878         int i_size;
 879         char *psz;
 880         int i_len;
 881
 882         p_esp->pi_stream_name_language[i] = GetWLE( &p_data[0] );
 883         i_size = GetWLE( &p_data[2] );
 884         p_data += 2;
 885
 886         psz = calloc( i_size/2 + 1, sizeof( char ) );
 887         for( i_len = 0; i_len < i_size/2; i_len++ )
 888         {
 889             psz[i_len] = GetWLE( p_data + 2*i_len );
 890         }
 891         psz[i_size/2] = '\0'; \
 892         p_data += i_size;
 893
 894         p_esp->ppsz_stream_name[i] = psz;
 895     }
 896
 897     for( i = 0; i < p_esp->i_payload_extension_system_count; i++ )
 898     {
 899         /* Skip them */
 900         int i_size = GetDWLE( &p_data[16 + 2] );
 901
 902         p_data += 16+2+4+i_size;
 903     }
 904
 905     p_esp->p_sp = NULL;
 906     if( p_data < &p_peek[i_peek] )
 907     {
 908         asf_object_t *p_sp;
 909         /* Cannot fail as peek succeed */
 910         stream_Read( s, NULL, p_data - p_peek );
 911
 912         p_sp = malloc( sizeof( asf_object_t ) );
 913
 914         if( ASF_ReadObject( s, p_sp, NULL ) )
 915         {
 916             free( p_sp );
 917         }
 918         else
 919         {
 920             /* This p_sp will be inserted by ReadRoot later */
 921             p_esp->p_sp = (asf_object_stream_properties_t*)p_sp;
 922         }
 923     }
 924
 925 #ifdef ASF_DEBUG
 926     msg_Dbg( s, "read \"extended stream properties object\":" );
 927     msg_Dbg( s, "  - start="I64Fd" end="I64Fd,
 928              p_esp->i_start_time, p_esp->i_end_time );
 929     msg_Dbg( s, "  - data bitrate=%d buffer=%d initial fullness=%d",
 930              p_esp->i_data_bitrate,
 931              p_esp->i_buffer_size,
 932              p_esp->i_initial_buffer_fullness );
 933     msg_Dbg( s, "  - alternate data bitrate=%d buffer=%d initial fullness=%d",
 934              p_esp->i_alternate_data_bitrate,
 935              p_esp->i_alternate_buffer_size,
 936              p_esp->i_alternate_initial_buffer_fullness );
 937     msg_Dbg( s, "  - maximum object size=%d", p_esp->i_maximum_object_size );
 938     msg_Dbg( s, "  - flags=0x%x", p_esp->i_flags );
 939     msg_Dbg( s, "  - stream number=%d language=%d",
 940              p_esp->i_stream_number, p_esp->i_language_index );
 941     msg_Dbg( s, "  - average time per frame="I64Fd,
 942              p_esp->i_average_time_per_frame );
 943     msg_Dbg( s, "  - stream name count=%d", p_esp->i_stream_name_count );
 944     for( i = 0; i < p_esp->i_stream_name_count; i++ )
 945         msg_Dbg( s, "     - lang id=%d name=%s",
 946                  p_esp->pi_stream_name_language[i],
 947                  p_esp->ppsz_stream_name[i] );
 948     msg_Dbg( s, "  - payload extension system count=%d",
 949              p_esp->i_payload_extension_system_count );
 950 #endif
 951     return VLC_SUCCESS;
 952 }
 953 static void ASF_FreeObject_extended_stream_properties( asf_object_t *p_obj)
 954 {
 955     asf_object_extended_stream_properties_t *p_esp =
 956         (asf_object_extended_stream_properties_t *)p_obj;
 957     int i;
 958
 959     for( i = 0; i < p_esp->i_stream_name_count; i++ )
 960         FREENULL( p_esp->ppsz_stream_name[i] );
 961     FREENULL( p_esp->pi_stream_name_language );
 962     FREENULL( p_esp->ppsz_stream_name );
 963 }
 964
 965
 966 static int ASF_ReadObject_advanced_mutual_exclusion( stream_t *s,
 967                                                      asf_object_t *p_obj)
 968 {
 969     asf_object_advanced_mutual_exclusion_t *p_ae =
 970         (asf_object_advanced_mutual_exclusion_t *)p_obj;
 971     uint8_t *p_peek, *p_data;
 972     int i_peek;
 973     int i;
 974
 975     if( ( i_peek = stream_Peek( s, &p_peek, p_ae->i_object_size ) ) < 42 )
 976        return VLC_EGENERIC;
 977
 978     p_data = &p_peek[24];
 979
 980     ASF_GetGUID( &p_ae->type, &p_data[0] );
 981     p_ae->i_stream_number_count = GetWLE( &p_data[16] );
 982
 983     p_data += 16 + 2;
 984     p_ae->pi_stream_number = calloc( sizeof(int),
 985                                      p_ae->i_stream_number_count );
 986     for( i = 0; i < p_ae->i_stream_number_count; i++ )
 987     {
 988         p_ae->pi_stream_number[i] = GetWLE( p_data );
 989         p_data += 2;
 990     }
 991
 992 #ifdef ASF_DEBUG
 993     msg_Dbg( s, "read \"advanced mutual exclusion object\"" );
 994     for( i = 0; i < p_ae->i_stream_number_count; i++ )
 995         msg_Dbg( s, "  - stream=%d", p_ae->pi_stream_number[i] );
 996 #endif
 997     return VLC_SUCCESS;
 998 }
 999 static void ASF_FreeObject_advanced_mutual_exclusion( asf_object_t *p_obj)
1000 {
1001     asf_object_advanced_mutual_exclusion_t *p_ae =
1002         (asf_object_advanced_mutual_exclusion_t *)p_obj;
1003
1004     FREENULL( p_ae->pi_stream_number );
1005 }
1006
1007
1008 static int ASF_ReadObject_stream_prioritization( stream_t *s,
1009                                                  asf_object_t *p_obj)
1010 {
1011     asf_object_stream_prioritization_t *p_sp =
1012         (asf_object_stream_prioritization_t *)p_obj;
1013     uint8_t *p_peek, *p_data;
1014     int i_peek;
1015     int i;
1016
1017     if( ( i_peek = stream_Peek( s, &p_peek, p_sp->i_object_size ) ) < 26 )
1018        return VLC_EGENERIC;
1019
1020     p_data = &p_peek[24];
1021
1022     p_sp->i_priority_count = GetWLE( &p_data[0] );
1023     p_data += 2;
1024
1025     p_sp->pi_priority_flag = calloc( sizeof(int), p_sp->i_priority_count );
1026     p_sp->pi_priority_stream_number =
1027                              calloc( sizeof(int), p_sp->i_priority_count );
1028
1029     for( i = 0; i < p_sp->i_priority_count; i++ )
1030     {
1031         p_sp->pi_priority_stream_number[i] = GetWLE( p_data ); p_data += 2;
1032         p_sp->pi_priority_flag[i] = GetWLE( p_data ); p_data += 2;
1033     }
1034 #ifdef ASF_DEBUG
1035     msg_Dbg( s, "read \"stream prioritization object\"" );
1036     for( i = 0; i < p_sp->i_priority_count; i++ )
1037         msg_Dbg( s, "  - Stream:%d flags=0x%x",
1038                  p_sp->pi_priority_stream_number[i],
1039                  p_sp->pi_priority_flag[i] );
1040 #endif
1041     return VLC_SUCCESS;
1042 }
1043 static void ASF_FreeObject_stream_prioritization( asf_object_t *p_obj)
1044 {
1045     asf_object_stream_prioritization_t *p_sp =
1046         (asf_object_stream_prioritization_t *)p_obj;
1047
1048     FREENULL( p_sp->pi_priority_stream_number );
1049     FREENULL( p_sp->pi_priority_flag );
1050 }
1051
1052
1053 static int ASF_ReadObject_extended_content_description( stream_t *s,
1054                                                         asf_object_t *p_obj)
1055 {
1056     asf_object_extended_content_description_t *p_ec =
1057         (asf_object_extended_content_description_t *)p_obj;
1058     uint8_t *p_peek, *p_data;
1059     int i_peek;
1060     int i;
1061
1062     if( ( i_peek = stream_Peek( s, &p_peek, p_ec->i_object_size ) ) < 26 )
1063        return VLC_EGENERIC;
1064
1065     p_data = &p_peek[24];
1066
1067     p_ec->i_count = GetWLE( p_data ); p_data += 2;
1068     p_ec->ppsz_name = calloc( sizeof(char*), p_ec->i_count );
1069     p_ec->ppsz_value = calloc( sizeof(char*), p_ec->i_count );
1070     for( i = 0; i < p_ec->i_count; i++ )
1071     {
1072         int i_size;
1073         int i_type;
1074         int i_len;
1075 #define GETSTRINGW( psz_str, i_size ) \
1076        psz_str = calloc( i_size/2 + 1, sizeof( char ) ); \
1077        for( i_len = 0; i_len < i_size/2; i_len++ ) \
1078        { \
1079            psz_str[i_len] = GetWLE( p_data + 2*i_len ); \
1080        } \
1081        psz_str[i_size/2] = '\0';
1082
1083         i_size = GetWLE( p_data ); p_data += 2;
1084         GETSTRINGW( p_ec->ppsz_name[i], i_size );
1085         p_data += i_size;
1086
1087         /* Grrr */
1088         i_type = GetWLE( p_data ); p_data += 2;
1089         i_size = GetWLE( p_data ); p_data += 2;
1090         if( i_type == 0 )
1091         {
1092             GETSTRINGW( p_ec->ppsz_value[i], i_size );
1093         }
1094         else if( i_type == 1 )
1095         {
1096             int j;
1097             /* Byte array */
1098             p_ec->ppsz_value[i] = malloc( 2*i_size + 1 );
1099             for( j = 0; j < i_size; j++ )
1100             {
1101                 static const char hex[16] = "0123456789ABCDEF";
1102                 p_ec->ppsz_value[i][2*j+0] = hex[p_data[0]>>4];
1103                 p_ec->ppsz_value[i][2*j+1] = hex[p_data[0]&0xf];
1104             }
1105             p_ec->ppsz_value[i][2*i_size] = '\0';
1106         }
1107         else if( i_type == 2 )
1108         {
1109             /* Bool */
1110             p_ec->ppsz_value[i] = strdup( *p_data ? "true" : "false" );
1111         }
1112         else if( i_type == 3 )
1113         {
1114             /* DWord */
1115             asprintf( &p_ec->ppsz_value[i], "%d", GetDWLE(p_data));
1116         }
1117         else if( i_type == 4 )
1118         {
1119             /* QWord */
1120             asprintf( &p_ec->ppsz_value[i], I64Fd, GetQWLE(p_data));
1121         }
1122         else if( i_type == 5 )
1123         {
1124             /* Word */
1125             asprintf( &p_ec->ppsz_value[i], "%d", GetWLE(p_data));
1126         }
1127         else
1128             p_ec->ppsz_value[i] = NULL;
1129
1130         p_data += i_size;
1131
1132
1133
1134 #undef GETSTRINGW
1135
1136     }
1137
1138 #ifdef ASF_DEBUG
1139     msg_Dbg( s, "read \"extended content description object\"" );
1140     for( i = 0; i < p_ec->i_count; i++ )
1141         msg_Dbg( s, "  - '%s' = '%s'",
1142                  p_ec->ppsz_name[i],
1143                  p_ec->ppsz_value[i] );
1144 #endif
1145     return VLC_SUCCESS;
1146 }
1147 static void ASF_FreeObject_extended_content_description( asf_object_t *p_obj)
1148 {
1149     asf_object_extended_content_description_t *p_ec =
1150         (asf_object_extended_content_description_t *)p_obj;
1151     int i;
1152
1153     for( i = 0; i < p_ec->i_count; i++ )
1154     {
1155         FREENULL( p_ec->ppsz_name[i] );
1156         FREENULL( p_ec->ppsz_value[i] );
1157     }
1158 }
1159
1160
1161 #if 0
1162 static int ASF_ReadObject_XXX(stream_t *s, asf_object_t *p_obj)
1163 {
1164     asf_object_XXX_t *p_XX =
1165         (asf_object_XXX_t *)p_obj;
1166     uint8_t *p_peek, *p_data;
1167     int i_peek;
1168
1169     if( ( i_peek = stream_Peek( s, &p_peek, p_XX->i_object_size ) ) < XXX )
1170        return VLC_EGENERIC;
1171
1172     p_data = &p_peek[24];
1173
1174 #ifdef ASF_DEBUG
1175     msg_Dbg( s,
1176              "Read \"XXX object\"" );
1177 #endif
1178     return VLC_SUCCESS;
1179 }
1180 static void ASF_FreeObject_XXX( asf_object_t *p_obj)
1181 {
1182     asf_object_XXX_t *p_XX =
1183         (asf_object_XXX_t *)p_obj;
1184 }
1185 #endif
1186
1187
1188 /* */
1189 static struct
1190 {
1191     const guid_t  *p_id;
1192     int     i_type;
1193     int     (*ASF_ReadObject_function)( stream_t *, asf_object_t *p_obj );
1194     void    (*ASF_FreeObject_function)( asf_object_t *p_obj );
1195
1196 } ASF_Object_Function [] =
1197 {
1198     { &asf_object_header_guid, ASF_OBJECT_HEADER,
1199       ASF_ReadObject_Header, ASF_FreeObject_Null },
1200     { &asf_object_data_guid, ASF_OBJECT_DATA,
1201       ASF_ReadObject_Data, ASF_FreeObject_Null },
1202     { &asf_object_index_guid, ASF_OBJECT_INDEX,
1203       ASF_ReadObject_Index, ASF_FreeObject_Index },
1204     { &asf_object_file_properties_guid, ASF_OBJECT_FILE_PROPERTIES,
1205       ASF_ReadObject_file_properties, ASF_FreeObject_Null },
1206     { &asf_object_stream_properties_guid, ASF_OBJECT_STREAM_PROPERTIES,
1207       ASF_ReadObject_stream_properties,ASF_FreeObject_stream_properties },
1208     { &asf_object_header_extension_guid, ASF_OBJECT_HEADER_EXTENSION,
1209       ASF_ReadObject_header_extension, ASF_FreeObject_header_extension},
1210     { &asf_object_metadata_guid, ASF_OBJECT_METADATA,
1211       ASF_ReadObject_metadata, ASF_FreeObject_metadata},
1212     { &asf_object_codec_list_guid, ASF_OBJECT_CODEC_LIST,
1213       ASF_ReadObject_codec_list, ASF_FreeObject_codec_list },
1214     { &asf_object_marker_guid, ASF_OBJECT_MARKER, NULL, NULL },
1215     { &asf_object_padding, ASF_OBJECT_PADDING, NULL, NULL },
1216     { &asf_object_content_description_guid, ASF_OBJECT_CONTENT_DESCRIPTION,
1217       ASF_ReadObject_content_description, ASF_FreeObject_content_description },
1218     { &asf_object_language_list, ASF_OBJECT_OTHER,
1219       ASF_ReadObject_language_list, ASF_FreeObject_language_list },
1220     { &asf_object_stream_bitrate_properties, ASF_OBJECT_OTHER,
1221       ASF_ReadObject_stream_bitrate_properties,
1222       ASF_FreeObject_stream_bitrate_properties },
1223     { &asf_object_extended_stream_properties, ASF_OBJECT_OTHER,
1224       ASF_ReadObject_extended_stream_properties,
1225       ASF_FreeObject_extended_stream_properties },
1226     { &asf_object_advanced_mutual_exclusion, ASF_OBJECT_OTHER,
1227       ASF_ReadObject_advanced_mutual_exclusion,
1228       ASF_FreeObject_advanced_mutual_exclusion },
1229     { &asf_object_stream_prioritization, ASF_OBJECT_OTHER,
1230       ASF_ReadObject_stream_prioritization,
1231       ASF_FreeObject_stream_prioritization },
1232     { &asf_object_extended_content_description, ASF_OBJECT_OTHER,
1233       ASF_ReadObject_extended_content_description,
1234       ASF_FreeObject_extended_content_description },
1235
1236     { &asf_object_null_guid, 0, NULL, NULL }
1237 };
1238
1239 static int ASF_ReadObject( stream_t *s, asf_object_t *p_obj,
1240                            asf_object_t *p_father )
1241 {
1242     int i_result;
1243     int i_index;
1244
1245     if( !p_obj )
1246         return( 0 );
1247
1248     memset( p_obj, 0, sizeof( p_obj ) );
1249
1250     if( ASF_ReadObjectCommon( s, p_obj ) )
1251     {
1252         msg_Warn( s, "cannot read one asf object" );
1253         return VLC_EGENERIC;
1254     }
1255     p_obj->common.p_father = p_father;
1256     p_obj->common.p_first = NULL;
1257     p_obj->common.p_next = NULL;
1258     p_obj->common.p_last = NULL;
1259
1260     if( p_obj->common.i_object_size < 24 )
1261     {
1262         msg_Warn( s, "found a corrupted asf object (size<24)" );
1263         return VLC_EGENERIC;
1264     }
1265
1266     /* find this object */
1267     for( i_index = 0; ; i_index++ )
1268     {
1269         if( ASF_CmpGUID( ASF_Object_Function[i_index].p_id,
1270                          &p_obj->common.i_object_id ) ||
1271             ASF_CmpGUID( ASF_Object_Function[i_index].p_id,
1272                          &asf_object_null_guid ) )
1273         {
1274             break;
1275         }
1276     }
1277     p_obj->common.i_type = ASF_Object_Function[i_index].i_type;
1278
1279     /* Now load this object */
1280     if( ASF_Object_Function[i_index].ASF_ReadObject_function == NULL )
1281     {
1282         msg_Warn( s, "unknown asf object (not loaded)" );
1283         i_result = VLC_SUCCESS;
1284     }
1285     else
1286     {
1287         /* XXX ASF_ReadObject_function realloc *pp_obj XXX */
1288         i_result =
1289           (ASF_Object_Function[i_index].ASF_ReadObject_function)( s, p_obj );
1290     }
1291
1292     /* link this object with father */
1293     if( p_father )
1294     {
1295         if( p_father->common.p_first )
1296         {
1297             p_father->common.p_last->common.p_next = p_obj;
1298         }
1299         else
1300         {
1301             p_father->common.p_first = p_obj;
1302         }
1303         p_father->common.p_last = p_obj;
1304     }
1305
1306     return( i_result );
1307 }
1308
1309 static void ASF_FreeObject( stream_t *s, asf_object_t *p_obj )
1310 {
1311     int i_index;
1312     asf_object_t *p_child;
1313
1314     if( !p_obj ) return;
1315
1316     /* Free all child object */
1317     p_child = p_obj->common.p_first;
1318     while( p_child )
1319     {
1320         asf_object_t *p_next;
1321         p_next = p_child->common.p_next;
1322         ASF_FreeObject( s, p_child );
1323         p_child = p_next;
1324     }
1325
1326     /* find this object */
1327     for( i_index = 0; ; i_index++ )
1328     {
1329         if( ASF_CmpGUID( ASF_Object_Function[i_index].p_id,
1330                      &p_obj->common.i_object_id )||
1331             ASF_CmpGUID( ASF_Object_Function[i_index].p_id,
1332                      &asf_object_null_guid ) )
1333         {
1334             break;
1335         }
1336     }
1337
1338     /* Now free this object */
1339     if( ASF_Object_Function[i_index].ASF_FreeObject_function == NULL )
1340     {
1341         msg_Warn( s,
1342                   "unknown asf object " GUID_FMT,
1343                   GUID_PRINT( p_obj->common.i_object_id ) );
1344     }
1345     else
1346     {
1347 #ifdef ASF_DEBUG
1348         msg_Dbg( s,
1349                   "free asf object " GUID_FMT,
1350                   GUID_PRINT( p_obj->common.i_object_id ) );
1351 #endif
1352         (ASF_Object_Function[i_index].ASF_FreeObject_function)( p_obj );
1353     }
1354     free( p_obj );
1355     return;
1356 }
1357
1358 /*****************************************************************************
1359  * ASF_ObjectDumpDebug:
1360  *****************************************************************************/
1361 static const struct
1362 {
1363     const guid_t *p_id;
1364     char *psz_name;
1365 } ASF_ObjectDumpDebugInfo[] =
1366 {
1367     { &asf_object_header_guid, "Header" },
1368     { &asf_object_data_guid, "Data" },
1369     { &asf_object_index_guid, "Index" },
1370     { &asf_object_file_properties_guid, "File Properties" },
1371     { &asf_object_stream_properties_guid, "Stream Properties" },
1372     { &asf_object_content_description_guid, "Content Description" },
1373     { &asf_object_header_extension_guid, "Header Extension" },
1374     { &asf_object_metadata_guid, "Metadata" },
1375     { &asf_object_codec_list_guid, "Codec List" },
1376     { &asf_object_marker_guid, "Marker" },
1377     { &asf_object_stream_type_audio, "Stream Type Audio" },
1378     { &asf_object_stream_type_video, "Stream Type Video" },
1379     { &asf_object_stream_type_command, "Stream Type Command" },
1380     { &asf_object_language_list, "Language List" },
1381     { &asf_object_stream_bitrate_properties, "Stream Bitrate Propoerties" },
1382     { &asf_object_padding, "Padding" },
1383     { &asf_object_extended_stream_properties, "Extended Stream Properties" },
1384     { &asf_object_advanced_mutual_exclusion, "Advanced Mutual Exclusion" },
1385     { &asf_object_stream_prioritization, "Stream Prioritization" },
1386     { &asf_object_extended_content_description, "Extended content description"},
1387
1388     { NULL, "Unknown" },
1389 };
1390
1391
1392 static void ASF_ObjectDumpDebug( vlc_object_t *p_obj,
1393                                  asf_object_common_t *p_node, int i_level )
1394 {
1395     char str[1024];
1396     int i;
1397     union asf_object_u *p_child;
1398     char *psz_name;
1399
1400     /* Find the name */
1401     for( i = 0; ASF_ObjectDumpDebugInfo[i].p_id != NULL; i++ )
1402     {
1403         if( ASF_CmpGUID( ASF_ObjectDumpDebugInfo[i].p_id,
1404                           &p_node->i_object_id ) )
1405             break;
1406     }
1407     psz_name = ASF_ObjectDumpDebugInfo[i].psz_name;
1408
1409     memset( str, ' ', sizeof( str ) );
1410     for( i = 1; i < i_level; i++ )
1411     {
1412         str[i * 5] = '|';
1413     }
1414     snprintf( str + 5*i_level, 1024,
1415              "+ '%s' GUID "GUID_FMT" size:"I64Fu"pos:"I64Fu,
1416              psz_name,
1417              GUID_PRINT( p_node->i_object_id ),
1418              p_node->i_object_size, p_node->i_object_pos );
1419
1420     msg_Dbg( p_obj, "%s", str );
1421
1422     for( p_child = p_node->p_first; p_child != NULL;
1423                                              p_child = p_child->common.p_next )
1424     {
1425         ASF_ObjectDumpDebug( p_obj, &p_child->common, i_level + 1 );
1426     }
1427 }
1428
1429 /*****************************************************************************
1430  * ASF_ReadObjetRoot : parse the entire stream/file
1431  *****************************************************************************/
1432 asf_object_root_t *ASF_ReadObjectRoot( stream_t *s, int b_seekable )
1433 {
1434     asf_object_root_t *p_root = malloc( sizeof( asf_object_root_t ) );
1435     asf_object_t *p_obj;
1436
1437     p_root->i_type = ASF_OBJECT_ROOT;
1438     memcpy( &p_root->i_object_id, &asf_object_null_guid, sizeof( guid_t ) );
1439     p_root->i_object_pos = stream_Tell( s );
1440     p_root->i_object_size = 0;
1441     p_root->p_first = NULL;
1442     p_root->p_last  = NULL;
1443     p_root->p_next  = NULL;
1444     p_root->p_hdr   = NULL;
1445     p_root->p_data  = NULL;
1446     p_root->p_fp    = NULL;
1447     p_root->p_index = NULL;
1448     p_root->p_metadata = NULL;
1449
1450     for( ; ; )
1451     {
1452         p_obj = malloc( sizeof( asf_object_t ) );
1453
1454         if( ASF_ReadObject( s, p_obj, (asf_object_t*)p_root ) )
1455         {
1456             free( p_obj );
1457             break;
1458         }
1459         switch( p_obj->common.i_type )
1460         {
1461             case( ASF_OBJECT_HEADER ):
1462                 p_root->p_hdr = (asf_object_header_t*)p_obj;
1463                 break;
1464             case( ASF_OBJECT_DATA ):
1465                 p_root->p_data = (asf_object_data_t*)p_obj;
1466                 break;
1467             case( ASF_OBJECT_INDEX ):
1468                 p_root->p_index = (asf_object_index_t*)p_obj;
1469                 break;
1470             default:
1471                 msg_Warn( s, "unknow object found" );
1472                 break;
1473         }
1474         if( p_obj->common.i_type == ASF_OBJECT_DATA &&
1475             p_obj->common.i_object_size <= 50 )
1476         {
1477             /* probably a dump of broadcasted asf */
1478             break;
1479         }
1480         if( !b_seekable && p_root->p_hdr && p_root->p_data )
1481         {
1482             /* For unseekable stream it's enough to play */
1483             break;
1484         }
1485
1486         if( ASF_NextObject( s, p_obj ) ) /* Go to the next object */
1487         {
1488             break;
1489         }
1490     }
1491
1492     if( p_root->p_hdr != NULL && p_root->p_data != NULL )
1493     {
1494         p_root->p_fp = ASF_FindObject( p_root->p_hdr,
1495                                        &asf_object_file_properties_guid, 0 );
1496
1497         if( p_root->p_fp )
1498         {
1499             asf_object_t *p_hdr_ext =
1500                 ASF_FindObject( p_root->p_hdr,
1501                                 &asf_object_header_extension_guid, 0 );
1502             if( p_hdr_ext )
1503             {
1504                 int i_ext_stream;
1505                 int i;
1506
1507                 p_root->p_metadata =
1508                     ASF_FindObject( p_hdr_ext,
1509                                     &asf_object_metadata_guid, 0 );
1510                 /* Special case for broken designed file format :( */
1511                 i_ext_stream = ASF_CountObject( p_hdr_ext,
1512                                     &asf_object_extended_stream_properties );
1513                 for( i = 0; i < i_ext_stream; i++ )
1514                 {
1515                     asf_object_t *p_esp =
1516                         ASF_FindObject( p_hdr_ext,
1517                                    &asf_object_extended_stream_properties, i );
1518                     if( p_esp->ext_stream.p_sp )
1519                     {
1520                         asf_object_t *p_sp =
1521                                          (asf_object_t*)p_esp->ext_stream.p_sp;
1522
1523                         /* Insert this p_sp */
1524                         p_root->p_hdr->p_last->common.p_next = p_sp;
1525                         p_root->p_hdr->p_last = p_sp;
1526
1527                         p_sp->common.p_father = (asf_object_t*)p_root->p_hdr;
1528                     }
1529                 }
1530             }
1531
1532             ASF_ObjectDumpDebug( VLC_OBJECT(s),
1533                                  (asf_object_common_t*)p_root, 0 );
1534             return p_root;
1535         }
1536         msg_Warn( s, "cannot find file properties object" );
1537     }
1538
1539     /* Invalid file */
1540     ASF_FreeObjectRoot( s, p_root );
1541     return NULL;
1542 }
1543
1544 void ASF_FreeObjectRoot( stream_t *s, asf_object_root_t *p_root )
1545 {
1546     asf_object_t *p_obj;
1547
1548     p_obj = p_root->p_first;
1549     while( p_obj )
1550     {
1551         asf_object_t *p_next;
1552         p_next = p_obj->common.p_next;
1553         ASF_FreeObject( s, p_obj );
1554         p_obj = p_next;
1555     }
1556     free( p_root );
1557 }
1558
1559 int  __ASF_CountObject( asf_object_t *p_obj, const guid_t *p_guid )
1560 {
1561     int i_count;
1562     asf_object_t *p_child;
1563
1564     if( !p_obj ) return( 0 );
1565
1566     i_count = 0;
1567     p_child = p_obj->common.p_first;
1568     while( p_child )
1569     {
1570         if( ASF_CmpGUID( &p_child->common.i_object_id, p_guid ) )
1571         {
1572             i_count++;
1573         }
1574         p_child = p_child->common.p_next;
1575     }
1576     return( i_count );
1577 }
1578
1579 void *__ASF_FindObject( asf_object_t *p_obj, const guid_t *p_guid,
1580                         int i_number )
1581 {
1582     asf_object_t *p_child;
1583
1584     p_child = p_obj->common.p_first;
1585
1586     while( p_child )
1587     {
1588         if( ASF_CmpGUID( &p_child->common.i_object_id, p_guid ) )
1589         {
1590             if( i_number == 0 )
1591             {
1592                 /* We found it */
1593                 return( p_child );
1594             }
1595
1596             i_number--;
1597         }
1598         p_child = p_child->common.p_next;
1599     }
1600     return( NULL );
1601 }