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