1 /*****************************************************************************
2 * common.h: common definitions
3 * Collection of useful common types and macros definitions
4 *****************************************************************************
5 * Copyright (C) 1998-2011 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@via.ecp.fr>
8 * Vincent Seguin <seguin@via.ecp.fr>
9 * Gildas Bazin <gbazin@videolan.org>
10 * RĂ©mi Denis-Courmont
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.
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.
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
29 * This file is a collection of common definitions and types
33 # define VLC_COMMON_H 1
35 /*****************************************************************************
36 * Required vlc headers
37 *****************************************************************************/
38 #if defined( _MSC_VER )
39 # pragma warning( disable : 4244 )
42 #include "vlc_config.h"
44 /*****************************************************************************
45 * Required system headers
46 *****************************************************************************/
59 /* Helper for GCC version checks */
61 # define VLC_GCC_VERSION(maj,min) \
62 ((__GNUC__ > (maj)) || (__GNUC__ == (maj) && __GNUC_MINOR__ >= (min)))
64 # define VLC_GCC_VERSION(maj,min) (0)
67 /* Try to fix format strings for all versions of mingw and mingw64 */
68 #if defined( _WIN32 ) && defined( __USE_MINGW_ANSI_STDIO )
81 /* Function attributes for compiler warnings */
83 # define VLC_DEPRECATED __attribute__((deprecated))
85 # if defined( _WIN32 ) && VLC_GCC_VERSION(4,4)
86 # define VLC_FORMAT(x,y) __attribute__ ((format(gnu_printf,x,y)))
88 # define VLC_FORMAT(x,y) __attribute__ ((format(printf,x,y)))
90 # define VLC_FORMAT_ARG(x) __attribute__ ((format_arg(x)))
92 # define VLC_MALLOC __attribute__ ((malloc))
93 # define VLC_NORETURN __attribute__ ((noreturn))
95 # if VLC_GCC_VERSION(3,4)
96 # define VLC_USED __attribute__ ((warn_unused_result))
102 # define VLC_DEPRECATED
103 # define VLC_FORMAT(x,y)
104 # define VLC_FORMAT_ARG(x)
106 # define VLC_NORETURN
111 /* Branch prediction */
113 # define likely(p) __builtin_expect(!!(p), 1)
114 # define unlikely(p) __builtin_expect(!!(p), 0)
116 # define likely(p) (!!(p))
117 # define unlikely(p) (!!(p))
122 # define VLC_EXTERN extern "C"
127 #if defined (WIN32) && defined (DLL_EXPORT)
128 # define VLC_EXPORT __declspec(dllexport)
129 #elif VLC_GCC_VERSION(4,0)
130 # define VLC_EXPORT __attribute__((visibility("default")))
135 #define VLC_API VLC_EXTERN VLC_EXPORT
138 /*****************************************************************************
139 * Basic types definitions
140 *****************************************************************************/
141 #if defined( WIN32 ) || defined( UNDER_CE )
144 # define PATH_MAX MAX_PATH
149 #include <sys/syslimits.h>
152 /* Counter for statistics and profiling */
153 typedef unsigned long count_t;
156 typedef uint16_t audio_volume_t;
159 * High precision date or time interval
161 * Store a high precision date or time interval. The maximum precision is the
162 * microsecond, and a 64 bits integer is used to avoid overflows (maximum
163 * time interval is then 292271 years, which should be long enough for any
164 * video). Dates are stored as microseconds since a common date (usually the
165 * epoch). Note that date and time intervals can be manipulated using regular
166 * arithmetic operators, and that no special functions are required.
168 typedef int64_t mtime_t;
171 * The vlc_fourcc_t type.
173 * See http://www.webartz.com/fourcc/ for a very detailed list.
175 typedef uint32_t vlc_fourcc_t;
177 #ifdef WORDS_BIGENDIAN
178 # define VLC_FOURCC( a, b, c, d ) \
179 ( ((uint32_t)d) | ( ((uint32_t)c) << 8 ) \
180 | ( ((uint32_t)b) << 16 ) | ( ((uint32_t)a) << 24 ) )
181 # define VLC_TWOCC( a, b ) \
182 ( (uint16_t)(b) | ( (uint16_t)(a) << 8 ) )
185 # define VLC_FOURCC( a, b, c, d ) \
186 ( ((uint32_t)a) | ( ((uint32_t)b) << 8 ) \
187 | ( ((uint32_t)c) << 16 ) | ( ((uint32_t)d) << 24 ) )
188 # define VLC_TWOCC( a, b ) \
189 ( (uint16_t)(a) | ( (uint16_t)(b) << 8 ) )
194 * Translate a vlc_fourcc into its string representation. This function
195 * assumes there is enough room in psz_fourcc to store 4 characters in.
197 * \param fcc a vlc_fourcc_t
198 * \param psz_fourcc string to store string representation of vlc_fourcc in
200 static inline void vlc_fourcc_to_char( vlc_fourcc_t fcc, char *psz_fourcc )
202 memcpy( psz_fourcc, &fcc, 4 );
205 #define vlc_fourcc_to_char( a, b ) \
206 vlc_fourcc_to_char( (vlc_fourcc_t)(a), (char *)(b) )
208 /*****************************************************************************
209 * Classes declaration
210 *****************************************************************************/
213 typedef struct vlc_list_t vlc_list_t;
214 typedef struct vlc_object_t vlc_object_t;
215 typedef struct libvlc_int_t libvlc_int_t;
216 typedef struct date_t date_t;
225 PLAYLIST_PLAY, /**< No arg. res=can fail*/
226 PLAYLIST_VIEWPLAY, /**< arg1= playlist_item_t*,*/
227 /** arg2 = playlist_item_t* , res=can fail */
228 PLAYLIST_PAUSE, /**< No arg res=can fail*/
229 PLAYLIST_STOP, /**< No arg res=can fail*/
230 PLAYLIST_SKIP, /**< arg1=int, res=can fail*/
231 } playlist_command_t;
234 typedef struct playlist_t playlist_t;
235 typedef struct playlist_item_t playlist_item_t;
236 typedef struct playlist_view_t playlist_view_t;
237 typedef struct services_discovery_t services_discovery_t;
238 typedef struct services_discovery_sys_t services_discovery_sys_t;
239 typedef struct playlist_add_t playlist_add_t;
242 typedef struct module_t module_t;
243 typedef struct module_config_t module_config_t;
245 typedef struct config_category_t config_category_t;
248 typedef struct input_thread_t input_thread_t;
249 typedef struct input_item_t input_item_t;
250 typedef struct input_item_node_t input_item_node_t;
251 typedef struct access_t access_t;
252 typedef struct access_sys_t access_sys_t;
253 typedef struct stream_t stream_t;
254 typedef struct stream_sys_t stream_sys_t;
255 typedef struct demux_t demux_t;
256 typedef struct demux_sys_t demux_sys_t;
257 typedef struct es_out_t es_out_t;
258 typedef struct es_out_id_t es_out_id_t;
259 typedef struct es_out_sys_t es_out_sys_t;
260 typedef struct seekpoint_t seekpoint_t;
261 typedef struct info_t info_t;
262 typedef struct info_category_t info_category_t;
263 typedef struct input_attachment_t input_attachment_t;
266 typedef struct audio_format_t audio_format_t;
267 typedef struct video_format_t video_format_t;
268 typedef struct subs_format_t subs_format_t;
269 typedef struct es_format_t es_format_t;
270 typedef struct video_palette_t video_palette_t;
273 typedef struct audio_output audio_output_t;
274 typedef struct aout_sys_t aout_sys_t;
275 typedef struct aout_fifo_t aout_fifo_t;
276 typedef struct aout_input_t aout_input_t;
277 typedef struct block_t aout_buffer_t;
278 typedef audio_format_t audio_sample_format_t;
281 typedef struct vout_thread_t vout_thread_t;
283 typedef video_format_t video_frame_format_t;
284 typedef struct picture_t picture_t;
285 typedef struct picture_sys_t picture_sys_t;
288 typedef struct spu_t spu_t;
289 typedef struct subpicture_t subpicture_t;
290 typedef struct subpicture_sys_t subpicture_sys_t;
291 typedef struct subpicture_region_t subpicture_region_t;
293 typedef struct image_handler_t image_handler_t;
296 typedef struct sout_instance_t sout_instance_t;
297 typedef struct sout_instance_sys_t sout_instance_sys_t;
299 typedef struct sout_input_t sout_input_t;
300 typedef struct sout_packetizer_input_t sout_packetizer_input_t;
302 typedef struct sout_access_out_t sout_access_out_t;
303 typedef struct sout_access_out_sys_t sout_access_out_sys_t;
305 typedef struct sout_mux_t sout_mux_t;
306 typedef struct sout_mux_sys_t sout_mux_sys_t;
308 typedef struct sout_stream_t sout_stream_t;
309 typedef struct sout_stream_sys_t sout_stream_sys_t;
311 typedef struct config_chain_t config_chain_t;
312 typedef struct session_descriptor_t session_descriptor_t;
315 typedef struct decoder_t decoder_t;
316 typedef struct decoder_sys_t decoder_sys_t;
317 typedef struct decoder_synchro_t decoder_synchro_t;
320 typedef struct encoder_t encoder_t;
321 typedef struct encoder_sys_t encoder_sys_t;
324 typedef struct filter_t filter_t;
325 typedef struct filter_sys_t filter_sys_t;
328 typedef struct virtual_socket_t v_socket_t;
329 typedef struct vlc_acl_t vlc_acl_t;
330 typedef struct vlc_url_t vlc_url_t;
333 typedef struct iso639_lang_t iso639_lang_t;
336 typedef struct block_t block_t;
337 typedef struct block_fifo_t block_fifo_t;
340 typedef struct httpd_t httpd_t;
341 typedef struct httpd_host_t httpd_host_t;
342 typedef struct httpd_url_t httpd_url_t;
343 typedef struct httpd_client_t httpd_client_t;
344 typedef struct httpd_callback_sys_t httpd_callback_sys_t;
345 typedef struct httpd_message_t httpd_message_t;
346 typedef int (*httpd_callback_t)( httpd_callback_sys_t *, httpd_client_t *, httpd_message_t *answer, const httpd_message_t *query );
347 typedef struct httpd_file_t httpd_file_t;
348 typedef struct httpd_file_sys_t httpd_file_sys_t;
349 typedef int (*httpd_file_callback_t)( httpd_file_sys_t *, httpd_file_t *, uint8_t *psz_request, uint8_t **pp_data, int *pi_data );
350 typedef struct httpd_handler_t httpd_handler_t;
351 typedef struct httpd_handler_sys_t httpd_handler_sys_t;
352 typedef int (*httpd_handler_callback_t)( httpd_handler_sys_t *, httpd_handler_t *, char *psz_url, uint8_t *psz_request, int i_type, uint8_t *p_in, int i_in, char *psz_remote_addr, char *psz_remote_host, uint8_t **pp_data, int *pi_data );
353 typedef struct httpd_redirect_t httpd_redirect_t;
354 typedef struct httpd_stream_t httpd_stream_t;
357 typedef struct md5_s md5_t;
360 typedef struct xml_t xml_t;
361 typedef struct xml_sys_t xml_sys_t;
362 typedef struct xml_reader_t xml_reader_t;
363 typedef struct xml_reader_sys_t xml_reader_sys_t;
366 typedef struct vod_t vod_t;
367 typedef struct vod_sys_t vod_sys_t;
368 typedef struct vod_media_t vod_media_t;
371 typedef struct osd_menu_t osd_menu_t;
372 typedef struct osd_state_t osd_state_t;
373 typedef struct osd_event_t osd_event_t;
374 typedef struct osd_button_t osd_button_t;
375 typedef struct osd_menu_state_t osd_menu_state_t;
378 typedef struct vlm_t vlm_t;
379 typedef struct vlm_message_t vlm_message_t;
382 typedef struct vlc_meta_t vlc_meta_t;
385 typedef struct counter_t counter_t;
386 typedef struct counter_sample_t counter_sample_t;
387 typedef struct stats_handler_t stats_handler_t;
388 typedef struct input_stats_t input_stats_t;
391 typedef struct update_t update_t;
392 typedef struct update_iterator_t update_iterator_t;
395 typedef struct meta_engine_t meta_engine_t;
397 /* stat/lstat/fstat */
399 # include <sys/stat.h>
403 # define stat _stati64
404 # define fstat _fstati64
407 /* You should otherwise use vlc_stat and vlc_lstat. */
413 * VLC value structure
422 vlc_object_t * p_object;
425 struct { int32_t x; int32_t y; } coords;
435 vlc_value_t * p_values;
440 /*****************************************************************************
441 * Error values (shouldn't be exposed)
442 *****************************************************************************/
443 #define VLC_SUCCESS -0 /* No error */
444 #define VLC_ENOMEM -1 /* Not enough memory */
445 #define VLC_ETIMEOUT -3 /* Timeout */
447 #define VLC_ENOMOD -10 /* Module not found */
449 #define VLC_ENOOBJ -20 /* Object not found */
451 #define VLC_ENOVAR -30 /* Variable not found */
452 #define VLC_EBADVAR -31 /* Bad variable value */
454 #define VLC_ENOITEM -40 /**< Item not found */
456 #define VLC_EEXIT -255 /* Program exited */
457 #define VLC_EEXITSUCCESS -999 /* Program exited successfully */
458 #define VLC_EGENERIC -666 /* Generic error */
460 /*****************************************************************************
462 *****************************************************************************/
463 typedef int ( * vlc_callback_t ) ( vlc_object_t *, /* variable's object */
464 char const *, /* variable name */
465 vlc_value_t, /* old value */
466 vlc_value_t, /* new value */
467 void * ); /* callback data */
469 /*****************************************************************************
470 * OS-specific headers and thread types
471 *****************************************************************************/
472 #if defined( WIN32 ) || defined( UNDER_CE )
473 /* WIN32_LEAN_AND_MEAN is needed to be able to include winsock2.h because else,
474 * windows.h will also include winsock.h and declarations will conflict */
475 # define WIN32_LEAN_AND_MEAN
476 # include <windows.h>
479 #include "vlc_mtime.h"
480 #include "vlc_threads.h"
483 * Memory storage space for an atom. Never access it directly.
487 volatile uintptr_t u;
491 /*****************************************************************************
492 * Common structure members
493 *****************************************************************************/
495 /* VLC_COMMON_MEMBERS : members common to all basic vlc objects */
496 #define VLC_COMMON_MEMBERS \
497 /** \name VLC_COMMON_MEMBERS \
498 * these members are common for all vlc objects \
501 const char *psz_object_type; \
503 /* Messages header */ \
507 /* Object properties */ \
508 volatile bool b_die; /**< set by the outside */ \
509 bool b_force; /**< set by the outside (eg. module_need()) */ \
511 /* Stuff related to the libvlc structure */ \
512 libvlc_int_t *p_libvlc; /**< (root of all evil) - 1 */ \
514 vlc_object_t * p_parent; /**< our parent */ \
518 /* VLC_OBJECT: attempt at doing a clever cast */
519 #if VLC_GCC_VERSION(4,0)
521 # define VLC_OBJECT( x ) \
522 __builtin_choose_expr( \
523 __builtin_offsetof(__typeof__(*(x)), psz_object_type), \
524 (void)0 /* screw you */, \
527 # define VLC_OBJECT( x ) \
528 ((vlc_object_t *)(x) \
529 + 0 * __builtin_offsetof(__typeof__(*(x)), psz_object_type))
532 # define VLC_OBJECT( x ) ((vlc_object_t *)(x))
535 typedef struct gc_object_t
538 void (*pf_destructor) (struct gc_object_t *);
542 * These members are common to all objects that wish to be garbage-collected.
544 #define VLC_GC_MEMBERS gc_object_t vlc_gc_data;
546 VLC_API void * vlc_gc_init(gc_object_t *, void (*)(gc_object_t *));
547 VLC_API void * vlc_hold(gc_object_t *);
548 VLC_API void vlc_release(gc_object_t *);
550 #define vlc_gc_init( a,b ) vlc_gc_init( &(a)->vlc_gc_data, (b) )
551 #define vlc_gc_incref( a ) vlc_hold( &(a)->vlc_gc_data )
552 #define vlc_gc_decref( a ) vlc_release( &(a)->vlc_gc_data )
553 #define vlc_priv( gc, t ) ((t *)(((char *)(gc)) - offsetof(t, vlc_gc_data)))
555 /*****************************************************************************
556 * Macros and inline functions
557 *****************************************************************************/
559 /* CEIL: division with round to nearest greater integer */
560 #define CEIL(n, d) ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
562 /* PAD: PAD(n, d) = CEIL(n ,d) * d */
563 #define PAD(n, d) ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
565 /* __MAX and __MIN: self explanatory */
567 # define __MAX(a, b) ( ((a) > (b)) ? (a) : (b) )
570 # define __MIN(a, b) ( ((a) < (b)) ? (a) : (b) )
574 static inline int64_t GCD ( int64_t a, int64_t b )
585 /* function imported from libavutil/common.h */
587 static inline uint8_t clip_uint8_vlc( int32_t a )
589 if( a&(~255) ) return (-a)>>31;
593 /** Count leading zeroes */
595 static inline unsigned clz (unsigned x)
597 #if VLC_GCC_VERSION(3,4)
598 return __builtin_clz (x);
600 unsigned i = sizeof (x) * 8;
611 #define clz8( x ) (clz(x) - ((sizeof(unsigned) - sizeof (uint8_t)) * 8))
612 #define clz16( x ) (clz(x) - ((sizeof(unsigned) - sizeof (uint16_t)) * 8))
613 /* XXX: this assumes that int is 32-bits or more */
614 #define clz32( x ) (clz(x) - ((sizeof(unsigned) - sizeof (uint32_t)) * 8))
618 static inline unsigned popcount (unsigned x)
620 #if VLC_GCC_VERSION(3,4)
621 return __builtin_popcount (x);
639 /** Byte swap (16 bits) */
641 static inline uint16_t bswap16 (uint16_t x)
643 return (x << 8) | (x >> 8);
646 /** Byte swap (32 bits) */
648 static inline uint32_t bswap32 (uint32_t x)
650 #if VLC_GCC_VERSION(4,3)
651 return __builtin_bswap32 (x);
653 return ((x & 0x000000FF) << 24)
654 | ((x & 0x0000FF00) << 8)
655 | ((x & 0x00FF0000) >> 8)
656 | ((x & 0xFF000000) >> 24);
660 /** Byte swap (64 bits) */
662 static inline uint64_t bswap64 (uint64_t x)
664 #if VLC_GCC_VERSION(4,3)
665 return __builtin_bswap64 (x);
666 #elif !defined (__cplusplus)
667 return ((x & 0x00000000000000FF) << 56)
668 | ((x & 0x000000000000FF00) << 40)
669 | ((x & 0x0000000000FF0000) << 24)
670 | ((x & 0x00000000FF000000) << 8)
671 | ((x & 0x000000FF00000000) >> 8)
672 | ((x & 0x0000FF0000000000) >> 24)
673 | ((x & 0x00FF000000000000) >> 40)
674 | ((x & 0xFF00000000000000) >> 56);
676 return ((x & 0x00000000000000FFLLU) << 56)
677 | ((x & 0x000000000000FF00LLU) << 40)
678 | ((x & 0x0000000000FF0000LLU) << 24)
679 | ((x & 0x00000000FF000000LLU) << 8)
680 | ((x & 0x000000FF00000000LLU) >> 8)
681 | ((x & 0x0000FF0000000000LLU) >> 24)
682 | ((x & 0x00FF000000000000LLU) >> 40)
683 | ((x & 0xFF00000000000000LLU) >> 56);
688 /* Free and set set the variable to NULL */
689 #define FREENULL(a) do { free( a ); a = NULL; } while(0)
691 #define EMPTY_STR(str) (!str || !*str)
693 VLC_API char const * vlc_error( int ) VLC_USED;
695 #include <vlc_arrays.h>
697 /* MSB (big endian)/LSB (little endian) conversions - network order is always
698 * MSB, and should be used for both network communications and files. */
700 #ifdef WORDS_BIGENDIAN
701 # define hton16(i) ((uint16_t)(i))
702 # define hton32(i) ((uint32_t)(i))
703 # define hton64(i) ((uint64_t)(i))
705 # define hton16(i) bswap16(i)
706 # define hton32(i) bswap32(i)
707 # define hton64(i) bswap64(i)
709 #define ntoh16(i) hton16(i)
710 #define ntoh32(i) hton32(i)
711 #define ntoh64(i) hton64(i)
713 /** Reads 16 bits in network byte order */
715 static inline uint16_t U16_AT (const void *p)
719 memcpy (&x, p, sizeof (x));
723 /** Reads 32 bits in network byte order */
725 static inline uint32_t U32_AT (const void *p)
729 memcpy (&x, p, sizeof (x));
733 /** Reads 64 bits in network byte order */
735 static inline uint64_t U64_AT (const void *p)
739 memcpy (&x, p, sizeof (x));
743 #define GetWBE(p) U16_AT(p)
744 #define GetDWBE(p) U32_AT(p)
745 #define GetQWBE(p) U64_AT(p)
747 /** Reads 16 bits in little-endian order */
749 static inline uint16_t GetWLE (const void *p)
753 memcpy (&x, p, sizeof (x));
754 #ifdef WORDS_BIGENDIAN
760 /** Reads 32 bits in little-endian order */
762 static inline uint32_t GetDWLE (const void *p)
766 memcpy (&x, p, sizeof (x));
767 #ifdef WORDS_BIGENDIAN
773 /** Reads 64 bits in little-endian order */
775 static inline uint64_t GetQWLE (const void *p)
779 memcpy (&x, p, sizeof (x));
780 #ifdef WORDS_BIGENDIAN
786 /** Writes 16 bits in network byte order */
787 static inline void SetWBE (void *p, uint16_t w)
790 memcpy (p, &w, sizeof (w));
793 /** Writes 32 bits in network byte order */
794 static inline void SetDWBE (void *p, uint32_t dw)
797 memcpy (p, &dw, sizeof (dw));
800 /** Writes 64 bits in network byte order */
801 static inline void SetQWBE (void *p, uint64_t qw)
804 memcpy (p, &qw, sizeof (qw));
807 /** Writes 16 bits in little endian order */
808 static inline void SetWLE (void *p, uint16_t w)
810 #ifdef WORDS_BIGENDIAN
813 memcpy (p, &w, sizeof (w));
816 /** Writes 32 bits in little endian order */
817 static inline void SetDWLE (void *p, uint32_t dw)
819 #ifdef WORDS_BIGENDIAN
822 memcpy (p, &dw, sizeof (dw));
825 /** Writes 64 bits in little endian order */
826 static inline void SetQWLE (void *p, uint64_t qw)
828 #ifdef WORDS_BIGENDIAN
831 memcpy (p, &qw, sizeof (qw));
835 #define VLC_UNUSED(x) (void)(x)
837 /* Stuff defined in src/extras/libc.c */
839 #if defined(WIN32) || defined(UNDER_CE)
840 /* win32, cl and icl support */
841 # if defined( _MSC_VER ) || !defined( __MINGW32__ )
842 # define __attribute__(x)
843 # define S_IFBLK 0x3000 /* Block */
844 # define S_ISBLK(m) (0)
845 # define S_ISCHR(m) (0)
846 # define S_ISFIFO(m) (((m)&_S_IFMT) == _S_IFIFO)
847 # define S_ISREG(m) (((m)&_S_IFMT) == _S_IFREG)
850 /* several type definitions */
851 # if defined( __MINGW32__ )
852 # if !defined( _OFF_T_ )
853 typedef long long _off_t;
854 typedef _off_t off_t;
860 # define off_t long long
864 # if defined( _MSC_VER )
865 # if !defined( _OFF_T_DEFINED )
866 typedef __int64 off_t;
867 # define _OFF_T_DEFINED
869 /* for wx compatibility typedef long off_t; */
870 # define off_t __int64
874 # if defined( __BORLANDC__ )
876 # define off_t unsigned __int64
880 # define O_NONBLOCK 0
884 # define alloca _alloca
890 VLC_API bool vlc_ureduce( unsigned *, unsigned *, uint64_t, uint64_t, uint64_t );
892 /* Aligned memory allocator */
894 #include <AvailabilityMacros.h>
899 # define vlc_memalign(align, size) (__mingw_aligned_malloc(size, align))
900 # define vlc_free(base) (__mingw_aligned_free(base))
901 #elif defined(__APPLE__) && !defined(MAC_OS_X_VERSION_10_6)
902 static inline void *vlc_memalign(size_t align, size_t size)
907 ptr = malloc(size+align);
910 diff = ((-(long)ptr - 1)&(align-1)) + 1;
911 ptr = (char*)ptr + diff;
912 ((char*)ptr)[-1]= diff;
916 static void vlc_free(void *ptr)
919 free((char*)ptr - ((char*)ptr)[-1]);
921 #elif defined(__ANDROID__)
922 # define vlc_memalign(align, size) memalign(align, size)
923 # define vlc_free(base) free(base)
925 static inline void *vlc_memalign(size_t align, size_t size)
928 if (unlikely(posix_memalign(&base, align, size)))
932 # define vlc_free(base) free(base)
935 VLC_API void vlc_tdestroy( void *, void (*)(void *) );
937 /* Fast large memory copy and memory set */
938 VLC_API void * vlc_memcpy( void *, const void *, size_t );
939 #define vlc_memset memset
941 /*****************************************************************************
943 *****************************************************************************/
944 VLC_API char * vlc_gettext( const char *msgid ) VLC_FORMAT_ARG(1);
946 #define vlc_pgettext( ctx, id ) \
947 vlc_pgettext_aux( ctx "\004" id, id )
950 static inline const char *vlc_pgettext_aux( const char *ctx, const char *id )
952 const char *tr = vlc_gettext( ctx );
953 return (tr == ctx) ? id : tr;
956 /*****************************************************************************
957 * Loosy memory allocation functions. Do not use in new code.
958 *****************************************************************************/
959 static inline void *xmalloc (size_t len)
961 void *ptr = malloc (len);
962 if (unlikely (ptr == NULL))
967 static inline void *xrealloc (void *ptr, size_t len)
969 void *nptr = realloc (ptr, len);
970 if (unlikely (nptr == NULL))
975 static inline void *xcalloc (size_t n, size_t size)
977 void *ptr = calloc (n, size);
978 if (unlikely (ptr == NULL))
983 /*****************************************************************************
985 *****************************************************************************/
986 VLC_API const char * VLC_CompileBy( void ) VLC_USED;
987 VLC_API const char * VLC_CompileHost( void ) VLC_USED;
988 VLC_API const char * VLC_Compiler( void ) VLC_USED;
990 /*****************************************************************************
991 * Additional vlc stuff
992 *****************************************************************************/
993 #include "vlc_messages.h"
994 #include "vlc_objects.h"
995 #include "vlc_variables.h"
996 #include "vlc_main.h"
997 #include "vlc_configuration.h"
999 #if defined( WIN32 ) || defined( UNDER_CE ) || defined( __SYMBIAN32__ ) || defined( __OS2__ )
1000 # define DIR_SEP_CHAR '\\'
1001 # define DIR_SEP "\\"
1002 # define PATH_SEP_CHAR ';'
1003 # define PATH_SEP ";"
1005 # define DIR_SEP_CHAR '/'
1006 # define DIR_SEP "/"
1007 # define PATH_SEP_CHAR ':'
1008 # define PATH_SEP ":"
1011 #define LICENSE_MSG \
1012 _("This program comes with NO WARRANTY, to the extent permitted by " \
1013 "law.\nYou may redistribute it under the terms of the GNU General " \
1014 "Public License;\nsee the file named COPYING for details.\n" \
1015 "Written by the VideoLAN team; see the AUTHORS file.\n")
1017 #endif /* !VLC_COMMON_H */