git.sesse.net Git - vlc/blob - include/vlc_common.h

   1 /*****************************************************************************
   2  * common.h: common definitions
   3  * Collection of useful common types and macros definitions
   4  *****************************************************************************
   5  * Copyright (C) 1998-2004 VideoLAN
   6  * $Id$
   7  *
   8  * Authors: Samuel Hocevar <sam@via.ecp.fr>
   9  *          Vincent Seguin <seguin@via.ecp.fr>
  10  *          Gildas Bazin <gbazin@videolan.org>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  25  *****************************************************************************/
  26
  27 /**
  28  * \file
  29  * This file is a collection of common definitions and types
  30  */
  31
  32 /*****************************************************************************
  33  * Required vlc headers
  34  *****************************************************************************/
  35 #if defined( __BORLANDC__ )
  36 #   undef PACKAGE
  37 #endif
  38
  39 #include "config.h"
  40
  41 #if defined(PACKAGE)
  42 #   undef PACKAGE_NAME
  43 #   define PACKAGE_NAME PACKAGE
  44 #endif
  45 #if defined(VERSION)
  46 #   undef PACKAGE_VERSION
  47 #   define PACKAGE_VERSION VERSION
  48 #endif
  49
  50 #if defined( __BORLANDC__ )
  51 #   undef HAVE_VARIADIC_MACROS
  52 #   undef HAVE_STDINT_H
  53 #   undef HAVE_INTTYPES_H
  54 #   undef off_t
  55 #elif defined( _MSC_VER )
  56 #   pragma warning( disable : 4244 )
  57 #endif
  58
  59 #include "vlc_config.h"
  60 #include "modules_inner.h"
  61
  62 /*****************************************************************************
  63  * Required system headers
  64  *****************************************************************************/
  65 #include <stdlib.h>
  66 #include <stdarg.h>
  67
  68 #ifdef HAVE_STRING_H
  69 #   include <string.h>                                         /* strerror() */
  70 #endif
  71
  72 #ifdef HAVE_SYS_TYPES_H
  73 #   include <sys/types.h>
  74 #endif
  75
  76 /*****************************************************************************
  77  * Basic types definitions
  78  *****************************************************************************/
  79 #if defined( HAVE_STDINT_H )
  80 #   include <stdint.h>
  81 #elif defined( HAVE_INTTYPES_H )
  82 #   include <inttypes.h>
  83 #elif defined( SYS_CYGWIN )
  84 #   include <sys/types.h>
  85     /* Cygwin only defines half of these... */
  86     typedef u_int8_t            uint8_t;
  87     typedef u_int16_t           uint16_t;
  88     typedef u_int32_t           uint32_t;
  89     typedef u_int64_t           uint64_t;
  90 #else
  91     /* Fallback types (very x86-centric, sorry) */
  92     typedef unsigned char       uint8_t;
  93     typedef signed char         int8_t;
  94     typedef unsigned short      uint16_t;
  95     typedef signed short        int16_t;
  96     typedef unsigned int        uint32_t;
  97     typedef signed int          int32_t;
  98 #   if defined( _MSC_VER ) \
  99       || defined( UNDER_CE ) \
 100       || ( defined( WIN32 ) && !defined( __MINGW32__ ) )
 101     typedef unsigned __int64    uint64_t;
 102     typedef signed __int64      int64_t;
 103 #   else
 104     typedef unsigned long long  uint64_t;
 105     typedef signed long long    int64_t;
 106 #   endif
 107     typedef uint32_t            uintptr_t;
 108     typedef int32_t             intptr_t;
 109 #endif
 110
 111 typedef uint8_t                 byte_t;
 112
 113 /* ptrdiff_t definition */
 114 #ifdef HAVE_STDDEF_H
 115 #   include <stddef.h>
 116 #else
 117 #   include <malloc.h>
 118 #   ifndef _PTRDIFF_T
 119 #       define _PTRDIFF_T
 120 /* Not portable in a 64-bit environment. */
 121 typedef int                 ptrdiff_t;
 122 #   endif
 123 #endif
 124
 125 #if defined( WIN32 ) || defined( UNDER_CE )
 126 #   include <malloc.h>
 127 #   ifndef PATH_MAX
 128 #       define PATH_MAX MAX_PATH
 129 #   endif
 130 #endif
 131
 132 #if (defined( WIN32 ) || defined( UNDER_CE )) && !defined( _SSIZE_T_ )
 133 typedef int                 ssize_t;
 134 #endif
 135
 136 /* Counter for statistics and profiling */
 137 typedef unsigned long       count_t;
 138
 139 /* DCT elements types */
 140 typedef int16_t             dctelem_t;
 141
 142 /* Video buffer types */
 143 typedef uint8_t             yuv_data_t;
 144
 145 /* Audio volume */
 146 typedef uint16_t            audio_volume_t;
 147
 148 #ifndef HAVE_SOCKLEN_T
 149 typedef int                 socklen_t;
 150 #endif
 151
 152 /**
 153  * High precision date or time interval
 154  *
 155  * Store a high precision date or time interval. The maximum precision is the
 156  * microsecond, and a 64 bits integer is used to avoid overflows (maximum
 157  * time interval is then 292271 years, which should be long enough for any
 158  * video). Dates are stored as microseconds since a common date (usually the
 159  * epoch). Note that date and time intervals can be manipulated using regular
 160  * arithmetic operators, and that no special functions are required.
 161  */
 162 typedef int64_t mtime_t;
 163
 164 /**
 165  * The vlc_fourcc_t type.
 166  *
 167  * See http://www.webartz.com/fourcc/ for a very detailed list.
 168  */
 169 typedef uint32_t vlc_fourcc_t;
 170
 171 #ifdef WORDS_BIGENDIAN
 172 #   define VLC_FOURCC( a, b, c, d ) \
 173         ( ((uint32_t)d) | ( ((uint32_t)c) << 8 ) \
 174            | ( ((uint32_t)b) << 16 ) | ( ((uint32_t)a) << 24 ) )
 175 #   define VLC_TWOCC( a, b ) \
 176         ( (uint16_t)(b) | ( (uint16_t)(a) << 8 ) )
 177
 178 #else
 179 #   define VLC_FOURCC( a, b, c, d ) \
 180         ( ((uint32_t)a) | ( ((uint32_t)b) << 8 ) \
 181            | ( ((uint32_t)c) << 16 ) | ( ((uint32_t)d) << 24 ) )
 182 #   define VLC_TWOCC( a, b ) \
 183         ( (uint16_t)(a) | ( (uint16_t)(b) << 8 ) )
 184
 185 #endif
 186
 187 /*****************************************************************************
 188  * Classes declaration
 189  *****************************************************************************/
 190
 191 /* Internal types */
 192 typedef struct libvlc_t libvlc_t;
 193 typedef struct vlc_t vlc_t;
 194 typedef struct variable_t variable_t;
 195 typedef struct date_t date_t;
 196
 197 /* Messages */
 198 typedef struct msg_bank_t msg_bank_t;
 199 typedef struct msg_subscription_t msg_subscription_t;
 200
 201 /* Playlist */
 202
 203 /* FIXME */
 204 /**
 205  * Playlist commands
 206  */
 207 typedef enum {
 208     PLAYLIST_PLAY,      /**< No arg.                            res=can fail*/
 209     PLAYLIST_VIEWPLAY,  /**< arg1= int, arg2= playlist_item_t*,*/
 210                         /**  arg3 = playlist_item_t*          , res=can fail */
 211     PLAYLIST_ITEMPLAY,  /** <arg1 = playlist_item_t *         , res=can fail */
 212     PLAYLIST_PAUSE,     /**< No arg                             res=can fail*/
 213     PLAYLIST_STOP,      /**< No arg                             res=can fail*/
 214     PLAYLIST_SKIP,      /**< arg1=int,                          res=can fail*/
 215     PLAYLIST_GOTO,      /**< arg1=int                           res=can fail */
 216     PLAYLIST_VIEWGOTO,      /**< arg1=int                       res=can fail */
 217 } playlist_command_t;
 218
 219
 220 typedef struct playlist_t playlist_t;
 221 typedef struct playlist_item_t playlist_item_t;
 222 typedef struct playlist_view_t playlist_view_t;
 223 typedef struct playlist_export_t playlist_export_t;
 224 typedef struct services_discovery_t services_discovery_t;
 225 typedef struct services_discovery_sys_t services_discovery_sys_t;
 226
 227 /* Modules */
 228 typedef struct module_bank_t module_bank_t;
 229 typedef struct module_t module_t;
 230 typedef struct module_config_t module_config_t;
 231 typedef struct module_symbols_t module_symbols_t;
 232 typedef struct module_cache_t module_cache_t;
 233
 234 /* Interface */
 235 typedef struct intf_thread_t intf_thread_t;
 236 typedef struct intf_sys_t intf_sys_t;
 237 typedef struct intf_console_t intf_console_t;
 238 typedef struct intf_msg_t intf_msg_t;
 239 typedef struct intf_channel_t intf_channel_t;
 240
 241 /* Input */
 242 typedef struct input_thread_t input_thread_t;
 243 typedef struct input_thread_sys_t input_thread_sys_t;
 244 typedef struct input_item_t input_item_t;
 245 typedef struct input_area_t input_area_t;
 246 typedef struct input_buffers_t input_buffers_t;
 247 typedef struct input_socket_t input_socket_t;
 248 typedef struct access_sys_t access_sys_t;
 249 typedef struct demux_sys_t demux_sys_t;
 250 typedef struct es_descriptor_t es_descriptor_t;
 251 typedef struct es_sys_t es_sys_t;
 252 typedef struct pgrm_descriptor_t pgrm_descriptor_t;
 253 typedef struct pgrm_sys_t pgrm_sys_t;
 254 typedef struct stream_descriptor_t stream_descriptor_t;
 255 typedef struct seekpoint_t seekpoint_t;
 256 typedef struct info_t info_t;
 257 typedef struct info_category_t info_category_t;
 258
 259 /* Format */
 260 typedef struct audio_format_t audio_format_t;
 261 typedef struct video_format_t video_format_t;
 262 typedef struct subs_format_t subs_format_t;
 263 typedef struct es_format_t es_format_t;
 264 typedef struct video_palette_t video_palette_t;
 265
 266 /* NInput */
 267 typedef struct stream_sys_t stream_sys_t;
 268 typedef struct stream_t     stream_t;
 269 typedef struct es_out_t     es_out_t;
 270 typedef struct es_out_id_t  es_out_id_t;
 271 typedef struct es_out_sys_t es_out_sys_t;
 272 typedef struct demux_t  demux_t;
 273 typedef struct access_t access_t;
 274
 275 /* Audio */
 276 typedef struct aout_instance_t aout_instance_t;
 277 typedef struct aout_sys_t aout_sys_t;
 278 typedef struct aout_fifo_t aout_fifo_t;
 279 typedef struct aout_input_t aout_input_t;
 280 typedef struct aout_buffer_t aout_buffer_t;
 281 typedef audio_format_t audio_sample_format_t;
 282 typedef struct audio_date_t audio_date_t;
 283 typedef struct aout_filter_t aout_filter_t;
 284
 285 /* Video */
 286 typedef struct vout_thread_t vout_thread_t;
 287 typedef struct vout_sys_t vout_sys_t;
 288 typedef struct vout_synchro_t vout_synchro_t;
 289 typedef struct chroma_sys_t chroma_sys_t;
 290
 291 typedef video_format_t video_frame_format_t;
 292 typedef struct picture_t picture_t;
 293 typedef struct picture_sys_t picture_sys_t;
 294 typedef struct picture_heap_t picture_heap_t;
 295
 296 typedef struct spu_t spu_t;
 297 typedef struct subpicture_t subpicture_t;
 298 typedef struct subpicture_sys_t subpicture_sys_t;
 299 typedef struct subpicture_region_t subpicture_region_t;
 300 typedef struct text_style_t text_style_t;
 301
 302 /* Stream output */
 303 typedef struct sout_instance_t sout_instance_t;
 304 typedef struct sout_instance_sys_t sout_instance_sys_t;
 305
 306 typedef struct sout_input_t sout_input_t;
 307 typedef struct sout_packetizer_input_t sout_packetizer_input_t;
 308
 309 typedef struct sout_access_out_t sout_access_out_t;
 310 typedef struct sout_access_out_sys_t   sout_access_out_sys_t;
 311
 312 typedef struct sout_mux_t sout_mux_t;
 313 typedef struct sout_mux_sys_t sout_mux_sys_t;
 314
 315 typedef struct sout_stream_t    sout_stream_t;
 316 typedef struct sout_stream_sys_t sout_stream_sys_t;
 317
 318 typedef struct sout_cfg_t       sout_cfg_t;
 319 typedef struct sap_session_t    sap_session_t;
 320 typedef struct sap_address_t sap_address_t;
 321 typedef struct session_descriptor_t session_descriptor_t;
 322 typedef struct announce_method_t announce_method_t;
 323 typedef struct announce_handler_t announce_handler_t;
 324 typedef struct sap_handler_t sap_handler_t;
 325 //typedef struct slp_session_t    slp_session_t;
 326
 327 /* Decoders */
 328 typedef struct decoder_t      decoder_t;
 329 typedef struct decoder_sys_t  decoder_sys_t;
 330
 331 /* Encoders */
 332 typedef struct encoder_t      encoder_t;
 333 typedef struct encoder_sys_t  encoder_sys_t;
 334
 335 /* Filters */
 336 typedef struct filter_t filter_t;
 337 typedef struct filter_sys_t filter_sys_t;
 338
 339 /* Misc */
 340 typedef struct data_packet_t data_packet_t;
 341 typedef struct data_buffer_t data_buffer_t;
 342 typedef struct stream_ctrl_t stream_ctrl_t;
 343 typedef struct pes_packet_t pes_packet_t;
 344 typedef struct network_socket_t network_socket_t;
 345 typedef struct virtual_socket_t v_socket_t;
 346 typedef struct iso639_lang_t iso639_lang_t;
 347
 348 /* block */
 349 typedef struct block_t      block_t;
 350 typedef struct block_fifo_t block_fifo_t;
 351
 352 /* httpd */
 353 typedef struct httpd_t          httpd_t;
 354 typedef struct httpd_host_t     httpd_host_t;
 355 typedef struct httpd_url_t      httpd_url_t;
 356 typedef struct httpd_client_t   httpd_client_t;
 357 typedef struct httpd_callback_sys_t httpd_callback_sys_t;
 358 typedef struct httpd_message_t  httpd_message_t;
 359 typedef int    (*httpd_callback_t)( httpd_callback_sys_t *, httpd_client_t *, httpd_message_t *answer, httpd_message_t *query );
 360 typedef struct httpd_file_t     httpd_file_t;
 361 typedef struct httpd_file_sys_t httpd_file_sys_t;
 362 typedef int (*httpd_file_callback_t)( httpd_file_sys_t*, httpd_file_t *, uint8_t *psz_request, uint8_t **pp_data, int *pi_data );
 363 typedef struct httpd_redirect_t httpd_redirect_t;
 364 typedef struct httpd_stream_t httpd_stream_t;
 365
 366 /* TLS support */
 367 typedef struct tls_t tls_t;
 368 typedef struct tls_server_t tls_server_t;
 369 typedef struct tls_session_t tls_session_t;
 370
 371 /* vod server */
 372 typedef struct vod_t     vod_t;
 373 typedef struct vod_sys_t vod_sys_t;
 374 typedef struct vod_media_t vod_media_t;
 375
 376 /* opengl */
 377 typedef struct opengl_t     opengl_t;
 378 typedef struct opengl_sys_t opengl_sys_t;
 379
 380 /* divers */
 381 typedef struct vlc_meta_t    vlc_meta_t;
 382
 383 typedef struct vlm_t         vlm_t;
 384 typedef struct vlm_message_t vlm_message_t;
 385
 386
 387 /*****************************************************************************
 388  * Variable callbacks
 389  *****************************************************************************/
 390 typedef int ( * vlc_callback_t ) ( vlc_object_t *,      /* variable's object */
 391                                    char const *,            /* variable name */
 392                                    vlc_value_t,                 /* old value */
 393                                    vlc_value_t,                 /* new value */
 394                                    void * );                /* callback data */
 395
 396 /*****************************************************************************
 397  * Plug-in stuff
 398  *****************************************************************************/
 399 #ifndef __PLUGIN__
 400 #   define VLC_EXPORT( type, name, args ) type name args
 401 #else
 402 #   define VLC_EXPORT( type, name, args ) struct _u_n_u_s_e_d_
 403     extern module_symbols_t* p_symbols;
 404 #endif
 405
 406 /*****************************************************************************
 407  * OS-specific headers and thread types
 408  *****************************************************************************/
 409 #if defined( WIN32 ) || defined( UNDER_CE )
 410 #   define WIN32_LEAN_AND_MEAN
 411 #   include <windows.h>
 412 #   if defined( UNDER_CE )
 413 #      define IS_WINNT 0
 414 #   else
 415 #      define IS_WINNT ( GetVersion() < 0x80000000 )
 416 #   endif
 417 #endif
 418
 419 #include "vlc_threads.h"
 420
 421 /*****************************************************************************
 422  * Common structure members
 423  *****************************************************************************/
 424
 425 /* VLC_COMMON_MEMBERS : members common to all basic vlc objects */
 426 #define VLC_COMMON_MEMBERS                                                  \
 427 /** \name VLC_COMMON_MEMBERS                                                \
 428  * these members are common for all vlc objects                             \
 429  */                                                                         \
 430 /**@{*/                                                                     \
 431     int   i_object_id;                                                      \
 432     int   i_object_type;                                                    \
 433     char *psz_object_type;                                                  \
 434     char *psz_object_name;                                                  \
 435                                                                             \
 436     /* Thread properties, if any */                                         \
 437     vlc_bool_t   b_thread;                                                  \
 438     vlc_thread_t thread_id;                                                 \
 439                                                                             \
 440     /* Object access lock */                                                \
 441     vlc_mutex_t  object_lock;                                               \
 442     vlc_cond_t   object_wait;                                               \
 443                                                                             \
 444     /* Object properties */                                                 \
 445     volatile vlc_bool_t b_error;                  /**< set by the object */ \
 446     volatile vlc_bool_t b_die;                   /**< set by the outside */ \
 447     volatile vlc_bool_t b_dead;                   /**< set by the object */ \
 448     volatile vlc_bool_t b_attached;               /**< set by the object */ \
 449     vlc_bool_t b_force;      /**< set by the outside (eg. module_Need()) */ \
 450                                                                             \
 451     /* Object variables */                                                  \
 452     vlc_mutex_t     var_lock;                                               \
 453     int             i_vars;                                                 \
 454     variable_t *    p_vars;                                                 \
 455                                                                             \
 456     /* Stuff related to the libvlc structure */                             \
 457     libvlc_t *      p_libvlc;                      /**< root of all evil */ \
 458     vlc_t *         p_vlc;                   /**< (root of all evil) - 1 */ \
 459                                                                             \
 460     volatile int    i_refcount;                         /**< usage count */ \
 461     vlc_object_t *  p_parent;                            /**< our parent */ \
 462     vlc_object_t ** pp_children;                       /**< our children */ \
 463     volatile int    i_children;                                             \
 464                                                                             \
 465     /* Private data */                                                      \
 466     void *          p_private;                                              \
 467                                                                             \
 468     /** Just a reminder so that people don't cast garbage */                \
 469     int be_sure_to_add_VLC_COMMON_MEMBERS_to_struct;                        \
 470 /**@}*/                                                                     \
 471
 472 /* VLC_OBJECT: attempt at doing a clever cast */
 473 #define VLC_OBJECT( x ) \
 474     ((vlc_object_t *)(x))+0*(x)->be_sure_to_add_VLC_COMMON_MEMBERS_to_struct
 475
 476 /*****************************************************************************
 477  * Macros and inline functions
 478  *****************************************************************************/
 479 #ifdef NTOHL_IN_SYS_PARAM_H
 480 #   include <sys/param.h>
 481
 482 #elif !defined(WIN32) && !defined( UNDER_CE )
 483 #   include <netinet/in.h>
 484
 485 #endif /* NTOHL_IN_SYS_PARAM_H || WIN32 */
 486
 487 /* CEIL: division with round to nearest greater integer */
 488 #define CEIL(n, d)  ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
 489
 490 /* PAD: PAD(n, d) = CEIL(n ,d) * d */
 491 #define PAD(n, d)   ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
 492
 493 /* __MAX and __MIN: self explanatory */
 494 #ifndef __MAX
 495 #   define __MAX(a, b)   ( ((a) > (b)) ? (a) : (b) )
 496 #endif
 497 #ifndef __MIN
 498 #   define __MIN(a, b)   ( ((a) < (b)) ? (a) : (b) )
 499 #endif
 500
 501 static int64_t GCD( int64_t a, int64_t b )
 502 {
 503     if( b ) return GCD( b, a % b );
 504     else return a;
 505 }
 506
 507 /* Dynamic array handling: realloc array, move data, increment position */
 508 #define INSERT_ELEM( p_ar, i_oldsize, i_pos, elem )                           \
 509     do                                                                        \
 510     {                                                                         \
 511         if( i_oldsize )                                                       \
 512         {                                                                     \
 513             (p_ar) = realloc( p_ar, ((i_oldsize) + 1) * sizeof( *(p_ar) ) );  \
 514         }                                                                     \
 515         else                                                                  \
 516         {                                                                     \
 517             (p_ar) = malloc( ((i_oldsize) + 1) * sizeof( *(p_ar) ) );         \
 518         }                                                                     \
 519         if( (i_oldsize) - (i_pos) )                                           \
 520         {                                                                     \
 521             memmove( (p_ar) + (i_pos) + 1,                                    \
 522                      (p_ar) + (i_pos),                                        \
 523                      ((i_oldsize) - (i_pos)) * sizeof( *(p_ar) ) );           \
 524         }                                                                     \
 525         (p_ar)[i_pos] = elem;                                                 \
 526         (i_oldsize)++;                                                        \
 527     }                                                                         \
 528     while( 0 )
 529
 530 #define REMOVE_ELEM( p_ar, i_oldsize, i_pos )                                 \
 531     do                                                                        \
 532     {                                                                         \
 533         if( (i_oldsize) - (i_pos) - 1 )                                       \
 534         {                                                                     \
 535             memmove( (p_ar) + (i_pos),                                        \
 536                      (p_ar) + (i_pos) + 1,                                    \
 537                      ((i_oldsize) - (i_pos) - 1) * sizeof( *(p_ar) ) );       \
 538         }                                                                     \
 539         if( i_oldsize > 1 )                                                   \
 540         {                                                                     \
 541             (p_ar) = realloc( p_ar, ((i_oldsize) - 1) * sizeof( *(p_ar) ) );  \
 542         }                                                                     \
 543         else                                                                  \
 544         {                                                                     \
 545             free( p_ar );                                                     \
 546             (p_ar) = NULL;                                                    \
 547         }                                                                     \
 548         (i_oldsize)--;                                                        \
 549     }                                                                         \
 550     while( 0 )
 551
 552
 553 #define TAB_APPEND( count, tab, p )             \
 554     if( (count) > 0 )                           \
 555     {                                           \
 556         (tab) = realloc( tab, sizeof( void ** ) * ( (count) + 1 ) ); \
 557     }                                           \
 558     else                                        \
 559     {                                           \
 560         (tab) = malloc( sizeof( void ** ) );    \
 561     }                                           \
 562     (tab)[count] = (p);        \
 563     (count)++
 564
 565 #define TAB_FIND( count, tab, p, index )        \
 566     {                                           \
 567         int _i_;                                \
 568         (index) = -1;                           \
 569         for( _i_ = 0; _i_ < (count); _i_++ )    \
 570         {                                       \
 571             if( (tab)[_i_] == (p) )  \
 572             {                                   \
 573                 (index) = _i_;                  \
 574                 break;                          \
 575             }                                   \
 576         }                                       \
 577     }
 578
 579 #define TAB_REMOVE( count, tab, p )             \
 580     {                                           \
 581         int _i_index_;                          \
 582         TAB_FIND( count, tab, p, _i_index_ );   \
 583         if( _i_index_ >= 0 )                    \
 584         {                                       \
 585             if( (count) > 1 )                     \
 586             {                                   \
 587                 memmove( ((void**)(tab) + _i_index_),    \
 588                          ((void**)(tab) + _i_index_+1),  \
 589                          ( (count) - _i_index_ - 1 ) * sizeof( void* ) );\
 590             }                                   \
 591             (count)--;                          \
 592             if( (count) == 0 )                  \
 593             {                                   \
 594                 free( tab );                    \
 595                 (tab) = NULL;                   \
 596             }                                   \
 597         }                                       \
 598     }
 599
 600 /* MSB (big endian)/LSB (little endian) conversions - network order is always
 601  * MSB, and should be used for both network communications and files. Note that
 602  * byte orders other than little and big endians are not supported, but only
 603  * the VAX seems to have such exotic properties. */
 604 static inline uint16_t U16_AT( void const * _p )
 605 {
 606     uint8_t * p = (uint8_t *)_p;
 607     return ( ((uint16_t)p[0] << 8) | p[1] );
 608 }
 609 static inline uint32_t U32_AT( void const * _p )
 610 {
 611     uint8_t * p = (uint8_t *)_p;
 612     return ( ((uint32_t)p[0] << 24) | ((uint32_t)p[1] << 16)
 613               | ((uint32_t)p[2] << 8) | p[3] );
 614 }
 615 static inline uint64_t U64_AT( void const * _p )
 616 {
 617     uint8_t * p = (uint8_t *)_p;
 618     return ( ((uint64_t)p[0] << 56) | ((uint64_t)p[1] << 48)
 619               | ((uint64_t)p[2] << 40) | ((uint64_t)p[3] << 32)
 620               | ((uint64_t)p[4] << 24) | ((uint64_t)p[5] << 16)
 621               | ((uint64_t)p[6] << 8) | p[7] );
 622 }
 623
 624 static inline uint16_t GetWLE( void const * _p )
 625 {
 626     uint8_t * p = (uint8_t *)_p;
 627     return ( ((uint16_t)p[1] << 8) | p[0] );
 628 }
 629 static inline uint32_t GetDWLE( void const * _p )
 630 {
 631     uint8_t * p = (uint8_t *)_p;
 632     return ( ((uint32_t)p[3] << 24) | ((uint32_t)p[2] << 16)
 633               | ((uint32_t)p[1] << 8) | p[0] );
 634 }
 635 static inline uint64_t GetQWLE( void const * _p )
 636 {
 637     uint8_t * p = (uint8_t *)_p;
 638     return ( ((uint64_t)p[7] << 56) | ((uint64_t)p[6] << 48)
 639               | ((uint64_t)p[5] << 40) | ((uint64_t)p[4] << 32)
 640               | ((uint64_t)p[3] << 24) | ((uint64_t)p[2] << 16)
 641               | ((uint64_t)p[1] << 8) | p[0] );
 642 }
 643
 644 #define GetWBE( p )     U16_AT( p )
 645 #define GetDWBE( p )    U32_AT( p )
 646 #define GetQWBE( p )    U64_AT( p )
 647
 648 /* Helper writer functions */
 649 #define SetWLE( p, v ) _SetWLE( (uint8_t*)p, v)
 650 static inline void _SetWLE( uint8_t *p, uint16_t i_dw )
 651 {
 652     p[1] = ( i_dw >>  8 )&0xff;
 653     p[0] = ( i_dw       )&0xff;
 654 }
 655
 656 #define SetDWLE( p, v ) _SetDWLE( (uint8_t*)p, v)
 657 static inline void _SetDWLE( uint8_t *p, uint32_t i_dw )
 658 {
 659     p[3] = ( i_dw >> 24 )&0xff;
 660     p[2] = ( i_dw >> 16 )&0xff;
 661     p[1] = ( i_dw >>  8 )&0xff;
 662     p[0] = ( i_dw       )&0xff;
 663 }
 664 #define SetQWLE( p, v ) _SetQWLE( (uint8_t*)p, v)
 665 static inline void _SetQWLE( uint8_t *p, uint64_t i_qw )
 666 {
 667     SetDWLE( p,   i_qw&0xffffffff );
 668     SetDWLE( p+4, ( i_qw >> 32)&0xffffffff );
 669 }
 670 #define SetWBE( p, v ) _SetWBE( (uint8_t*)p, v)
 671 static inline void _SetWBE( uint8_t *p, uint16_t i_dw )
 672 {
 673     p[0] = ( i_dw >>  8 )&0xff;
 674     p[1] = ( i_dw       )&0xff;
 675 }
 676
 677 #define SetDWBE( p, v ) _SetDWBE( (uint8_t*)p, v)
 678 static inline void _SetDWBE( uint8_t *p, uint32_t i_dw )
 679 {
 680     p[0] = ( i_dw >> 24 )&0xff;
 681     p[1] = ( i_dw >> 16 )&0xff;
 682     p[2] = ( i_dw >>  8 )&0xff;
 683     p[3] = ( i_dw       )&0xff;
 684 }
 685 #define SetQWBE( p, v ) _SetQWBE( (uint8_t*)p, v)
 686 static inline void _SetQWBE( uint8_t *p, uint64_t i_qw )
 687 {
 688     SetDWBE( p+4,   i_qw&0xffffffff );
 689     SetDWBE( p, ( i_qw >> 32)&0xffffffff );
 690 }
 691
 692 #if WORDS_BIGENDIAN
 693 #   define hton16(i)   ( i )
 694 #   define hton32(i)   ( i )
 695 #   define hton64(i)   ( i )
 696 #   define ntoh16(i)   ( i )
 697 #   define ntoh32(i)   ( i )
 698 #   define ntoh64(i)   ( i )
 699 #else
 700 #   define hton16(i)   U16_AT(&i)
 701 #   define hton32(i)   U32_AT(&i)
 702 #   define hton64(i)   U64_AT(&i)
 703 #   define ntoh16(i)   U16_AT(&i)
 704 #   define ntoh32(i)   U32_AT(&i)
 705 #   define ntoh64(i)   U64_AT(&i)
 706 #endif
 707
 708 /* Format string sanity checks */
 709 #ifdef HAVE_ATTRIBUTE_FORMAT
 710 #   define ATTRIBUTE_FORMAT(x,y) __attribute__ ((format(printf,x,y)))
 711 #else
 712 #   define ATTRIBUTE_FORMAT(x,y)
 713 #endif
 714
 715 /* Alignment of critical static data structures */
 716 #ifdef ATTRIBUTE_ALIGNED_MAX
 717 #   define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
 718 #else
 719 #   define ATTR_ALIGN(align)
 720 #endif
 721
 722 /* Alignment of critical dynamic data structure
 723  *
 724  * Not all platforms support memalign so we provide a vlc_memalign wrapper
 725  * void *vlc_memalign( size_t align, size_t size, void **pp_orig )
 726  * *pp_orig is the pointer that has to be freed afterwards.
 727  */
 728 #if 0
 729 #ifdef HAVE_POSIX_MEMALIGN
 730 #   define vlc_memalign(align,size,pp_orig) \
 731     ( !posix_memalign( pp_orig, align, size ) ? *(pp_orig) : NULL )
 732 #endif
 733 #endif
 734 #ifdef HAVE_MEMALIGN
 735     /* Some systems have memalign() but no declaration for it */
 736     void * memalign( size_t align, size_t size );
 737
 738 #   define vlc_memalign(pp_orig,align,size) \
 739     ( *(pp_orig) = memalign( align, size ) )
 740
 741 #else /* We don't have any choice but to align manually */
 742 #   define vlc_memalign(pp_orig,align,size) \
 743     (( *(pp_orig) = malloc( size + align - 1 )) \
 744         ? (void *)( (((unsigned long)*(pp_orig)) + (unsigned long)(align-1) ) \
 745                        & (~(unsigned long)(align-1)) ) \
 746         : NULL )
 747
 748 #endif
 749
 750 /* Stuff defined in src/extras/libc.c */
 751 #ifndef HAVE_STRDUP
 752 #   define strdup vlc_strdup
 753     VLC_EXPORT( char *, vlc_strdup, ( const char *s ) );
 754 #elif !defined(__PLUGIN__)
 755 #   define vlc_strdup NULL
 756 #endif
 757
 758 #if !defined(HAVE_VASPRINTF) || defined(SYS_DARWIN) || defined(SYS_BEOS)
 759 #   define vasprintf vlc_vasprintf
 760     VLC_EXPORT( int, vlc_vasprintf, (char **, const char *, va_list ) );
 761 #elif !defined(__PLUGIN__)
 762 #   define vlc_vasprintf NULL
 763 #endif
 764
 765 #if !defined(HAVE_ASPRINTF) || defined(SYS_DARWIN) || defined(SYS_BEOS)
 766 #   define asprintf vlc_asprintf
 767     VLC_EXPORT( int, vlc_asprintf, (char **, const char *, ... ) );
 768 #elif !defined(__PLUGIN__)
 769 #   define vlc_asprintf NULL
 770 #endif
 771
 772 #ifndef HAVE_STRNDUP
 773 #   if defined(STRNDUP_IN_GNOME_H) && \
 774         (defined(MODULE_NAME_IS_gnome)||defined(MODULE_NAME_IS_gnome_main)||\
 775          defined(MODULE_NAME_IS_gnome2)||defined(MODULE_NAME_IS_gnome2_main))
 776         /* Do nothing: gnome.h defines strndup for us */
 777 #   else
 778 #       define strndup vlc_strndup
 779         VLC_EXPORT( char *, vlc_strndup, ( const char *s, size_t n ) );
 780 #   endif
 781 #elif !defined(__PLUGIN__)
 782 #   define vlc_strndup NULL
 783 #endif
 784
 785 #ifndef HAVE_ATOF
 786 #   define atof vlc_atof
 787     VLC_EXPORT( double, vlc_atof, ( const char *nptr ) );
 788 #elif !defined(__PLUGIN__)
 789 #   define vlc_atof NULL
 790 #endif
 791
 792 #ifndef HAVE_STRTOF
 793 #   ifdef HAVE_STRTOD
 794 #       define strtof strtod
 795 #   endif
 796 #endif
 797
 798 #ifndef HAVE_ATOLL
 799 #   define atoll vlc_atoll
 800     VLC_EXPORT( int64_t, vlc_atoll, ( const char *nptr ) );
 801 #elif !defined(__PLUGIN__)
 802 #   define vlc_atoll NULL
 803 #endif
 804
 805 #ifndef HAVE_STRTOLL
 806 #   define strtoll vlc_strtoll
 807     VLC_EXPORT( int64_t, vlc_strtoll, ( const char *nptr, char **endptr, int base ) );
 808 #elif !defined(__PLUGIN__)
 809 #   define vlc_strtoll NULL
 810 #endif
 811
 812 #ifndef HAVE_GETENV
 813 #   define getenv vlc_getenv
 814     VLC_EXPORT( char *, vlc_getenv, ( const char *name ) );
 815 #elif !defined(__PLUGIN__)
 816 #   define vlc_getenv NULL
 817 #endif
 818
 819 #ifndef HAVE_STRCASECMP
 820 #   ifndef HAVE_STRICMP
 821 #       define strcasecmp vlc_strcasecmp
 822         VLC_EXPORT( int, vlc_strcasecmp, ( const char *s1, const char *s2 ) );
 823 #   else
 824 #       define strcasecmp stricmp
 825 #       if !defined(__PLUGIN__)
 826 #           define vlc_strcasecmp NULL
 827 #       endif
 828 #   endif
 829 #elif !defined(__PLUGIN__)
 830 #   define vlc_strcasecmp NULL
 831 #endif
 832
 833 #ifndef HAVE_STRNCASECMP
 834 #   ifndef HAVE_STRNICMP
 835 #       define strncasecmp vlc_strncasecmp
 836         VLC_EXPORT( int, vlc_strncasecmp, ( const char *s1, const char *s2, size_t n ) );
 837 #   else
 838 #       define strncasecmp strnicmp
 839 #       if !defined(__PLUGIN__)
 840 #           define vlc_strncasecmp NULL
 841 #       endif
 842 #   endif
 843 #elif !defined(__PLUGIN__)
 844 #   define vlc_strncasecmp NULL
 845 #endif
 846
 847 #ifndef HAVE_STRCASESTR
 848 #   ifndef HAVE_STRISTR
 849 #       define strcasestr vlc_strcasestr
 850         VLC_EXPORT( char *, vlc_strcasestr, ( const char *s1, const char *s2 ) );
 851 #   else
 852 #       define strcasestr stristr
 853 #       if !defined(__PLUGIN__)
 854 #           define vlc_strcasestr NULL
 855 #       endif
 856 #   endif
 857 #elif !defined(__PLUGIN__)
 858 #   define vlc_strcasestr NULL
 859 #endif
 860
 861 /* Format type specifiers for 64 bits numbers */
 862 #if !defined(WIN32) && !defined(UNDER_CE)
 863 #   define I64Fd "%lld"
 864 #   define I64Fi "%lli"
 865 #   define I64Fo "%llo"
 866 #   define I64Fu "%llu"
 867 #   define I64Fx "%llx"
 868 #   define I64FX "%llX"
 869 #else
 870 #   define I64Fd "%I64d"
 871 #   define I64Fi "%I64i"
 872 #   define I64Fo "%I64o"
 873 #   define I64Fu "%I64u"
 874 #   define I64Fx "%I64x"
 875 #   define I64FX "%I64X"
 876 #endif /* defined(WIN32)||defined(UNDER_CE) */
 877
 878 /* 64 bits integer constant suffix */
 879 #if defined( __MINGW32__ ) || (!defined(WIN32) && !defined(UNDER_CE))
 880 #   define I64C(x)         x##LL
 881 #   define UI64C(x)        x##ULL
 882 #else
 883 #   define I64C(x)         x##i64
 884 #   define UI64C(x)        x##ui64
 885 #endif /* defined(WIN32)||defined(UNDER_CE) */
 886
 887 #if defined(WIN32) || defined(UNDER_CE)
 888 /* win32, cl and icl support */
 889 #   if defined( _MSC_VER ) || !defined( __MINGW32__ )
 890 #       define __attribute__(x)
 891 #       define __inline__      __inline
 892 #       define S_IFBLK         0x3000  /* Block */
 893 #       define S_ISBLK(m)      (0)
 894 #       define S_ISCHR(m)      (0)
 895 #       define S_ISFIFO(m)     (((m)&_S_IFMT) == _S_IFIFO)
 896 #       define S_ISREG(m)      (((m)&_S_IFMT) == _S_IFREG)
 897 #   endif
 898
 899 /* several type definitions */
 900 #   if defined( __MINGW32__ )
 901 #       if !defined( _OFF_T_ )
 902 typedef long long _off_t;
 903 typedef _off_t off_t;
 904 #           define _OFF_T_
 905 #       else
 906 #           ifdef off_t
 907 #               undef off_t
 908 #           endif
 909 #           define off_t long long
 910 #       endif
 911 #   endif
 912
 913 #   if defined( _MSC_VER )
 914 #       if !defined( _OFF_T_DEFINED )
 915 typedef __int64 off_t;
 916 #           define _OFF_T_DEFINED
 917 #       else
 918 #           define off_t __int64
 919 #       endif
 920 #   endif
 921
 922 #   if defined( __BORLANDC__ )
 923 #       undef off_t
 924 #       define off_t unsigned __int64
 925 #   endif
 926
 927 #   ifndef O_NONBLOCK
 928 #       define O_NONBLOCK 0
 929 #   endif
 930
 931 #   ifndef alloca
 932 #       define alloca _alloca
 933 #   endif
 934
 935     /* These two are not defined in mingw32 (bug?) */
 936 #   ifndef snprintf
 937 #       define snprintf _snprintf
 938 #   endif
 939 #   ifndef vsnprintf
 940 #       define vsnprintf _vsnprintf
 941 #   endif
 942
 943 #endif
 944
 945 /* lseek (defined in src/extras/libc.c) */
 946 #ifndef HAVE_LSEEK
 947 #   define lseek vlc_lseek
 948     VLC_EXPORT( off_t, vlc_lseek, ( int fildes, off_t offset, int whence ) );
 949 #elif !defined(__PLUGIN__)
 950 #   define vlc_lseek NULL
 951 #endif
 952
 953 VLC_EXPORT( vlc_bool_t, vlc_reduce, ( int *, int *, int64_t, int64_t, int64_t ) );
 954 VLC_EXPORT( char **, vlc_parse_cmdline, ( const char *, int * ) );
 955
 956 /* vlc_wraptext (defined in src/extras/libc.c) */
 957 #define wraptext vlc_wraptext
 958 VLC_EXPORT( char *, vlc_wraptext, ( const char *, int, vlc_bool_t ) );
 959
 960 /* iconv wrappers (defined in src/extras/libc.c) */
 961 typedef void *vlc_iconv_t;
 962 VLC_EXPORT( vlc_iconv_t, vlc_iconv_open, ( const char *, const char * ) );
 963 VLC_EXPORT( size_t, vlc_iconv, ( vlc_iconv_t, char **, size_t *, char **, size_t * ) );
 964 VLC_EXPORT( int, vlc_iconv_close, ( vlc_iconv_t ) );
 965
 966 /*****************************************************************************
 967  * CPU capabilities
 968  *****************************************************************************/
 969 #define CPU_CAPABILITY_NONE    0
 970 #define CPU_CAPABILITY_486     (1<<0)
 971 #define CPU_CAPABILITY_586     (1<<1)
 972 #define CPU_CAPABILITY_PPRO    (1<<2)
 973 #define CPU_CAPABILITY_MMX     (1<<3)
 974 #define CPU_CAPABILITY_3DNOW   (1<<4)
 975 #define CPU_CAPABILITY_MMXEXT  (1<<5)
 976 #define CPU_CAPABILITY_SSE     (1<<6)
 977 #define CPU_CAPABILITY_SSE2    (1<<7)
 978 #define CPU_CAPABILITY_ALTIVEC (1<<16)
 979 #define CPU_CAPABILITY_FPU     (1<<31)
 980
 981 /*****************************************************************************
 982  * I18n stuff
 983  *****************************************************************************/
 984 VLC_EXPORT( char *, vlc_dgettext, ( const char *package, const char *msgid ) );
 985
 986 #if defined( ENABLE_NLS ) && \
 987      (defined(MODULE_NAME_IS_gnome)||defined(MODULE_NAME_IS_gnome_main)||\
 988       defined(MODULE_NAME_IS_gnome2)||defined(MODULE_NAME_IS_gnome2_main)||\
 989       defined(MODULE_NAME_IS_pda))
 990     /* Declare nothing: gnome.h will do it for us */
 991 #elif defined( ENABLE_NLS )
 992 #   if defined( HAVE_INCLUDED_GETTEXT )
 993 #       include "libintl.h"
 994 #   else
 995 #       include <libintl.h>
 996 #   endif
 997 #   undef _
 998 #   define _(String) vlc_dgettext (PACKAGE_NAME, String)
 999 #   define N_(String) ((char*)(String))
1000 #else
1001 #   define _(String) ((char*)(String))
1002 #   define N_(String) ((char*)(String))
1003 #endif
1004
1005 /*****************************************************************************
1006  * Additional vlc stuff
1007  *****************************************************************************/
1008 #include "vlc_symbols.h"
1009 #include "os_specific.h"
1010 #include "vlc_messages.h"
1011 #include "variables.h"
1012 #include "vlc_objects.h"
1013 #include "vlc_threads_funcs.h"
1014 #include "mtime.h"
1015 #include "modules.h"
1016 #include "main.h"
1017 #include "configuration.h"
1018
1019 #if defined( __BORLANDC__ )
1020 #   undef PACKAGE
1021 #   define PACKAGE
1022 #endif
1023