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66c62b4386
vlc/include/vlc_common.h
Sam Hocevar 66c62b4386 * ./modules/demux/mpeg/system.c: added a helper plugin for MPEG-related 
demux plugins (ps, ts, but also dvd*).
  * ./src/input/mpeg_system.c: removed MPEG-related stuff from the vlc core.
  * ./src/misc/modules.c: max recursion level is now 5.
  * ./modules/access/dvdplay/es.c: fixed a buffer overflow.
2002-08-07 00:29:37 +00:00

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/*****************************************************************************
* common.h: common definitions
* Collection of useful common types and macros definitions
*****************************************************************************
* Copyright (C) 1998, 1999, 2000 VideoLAN
* $Id: vlc_common.h,v 1.14 2002/08/07 00:29:36 sam Exp $
*
* Authors: Samuel Hocevar <sam@via.ecp.fr>
* Vincent Seguin <seguin@via.ecp.fr>
* Gildas Bazin <gbazin@netcourrier.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
/*****************************************************************************
* Compiler-specific workarounds
*****************************************************************************/
#if defined( __BORLANDC__ )
# undef HAVE_VARIADIC_MACROS
# undef HAVE_STDINT_H
#endif
/*****************************************************************************
* Required system headers
*****************************************************************************/
#ifdef HAVE_STRING_H
# include <string.h> /* strerror() */
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
/*****************************************************************************
* Basic types definitions
*****************************************************************************/
#ifdef HAVE_STDINT_H
# include <stdint.h>
typedef uint8_t u8;
typedef int8_t s8;
typedef uint16_t u16;
typedef int16_t s16;
typedef uint32_t u32;
typedef int32_t s32;
typedef uint64_t u64;
typedef int64_t s64;
#else
typedef unsigned char u8;
typedef signed char s8;
typedef unsigned short u16;
typedef signed short s16;
typedef unsigned int u32;
typedef signed int s32;
# if defined( _MSC_VER ) || ( defined( WIN32 ) && !defined( __MINGW32__ ) )
typedef unsigned __int64 u64;
typedef signed __int64 s64;
# else
typedef unsigned long long u64;
typedef signed long long s64;
# endif
#endif
typedef u8 byte_t;
/* ptrdiff_t definition */
#ifdef HAVE_STDDEF_H
# include <stddef.h>
#else
# include <malloc.h>
# ifndef _PTRDIFF_T
# define _PTRDIFF_T
/* Not portable in a 64-bit environment. */
typedef int ptrdiff_t;
# endif
#endif
#if defined( WIN32 )
typedef int ssize_t;
#endif
/* Counter for statistics and profiling */
typedef unsigned long count_t;
/* DCT elements types */
typedef s16 dctelem_t;
/* Video buffer types */
typedef u8 yuv_data_t;
/*****************************************************************************
* mtime_t: high precision date or time interval
*****************************************************************************
* Store an high precision date or time interval. The maximum precision is the
* micro-second, and a 64 bits integer is used to avoid any overflow (maximum
* time interval is then 292271 years, which should be long enough for any
* video). Date are stored as a time interval since a common date.
* Note that date and time intervals can be manipulated using regular
* arithmetic operators, and that no special functions are required.
*****************************************************************************/
typedef s64 mtime_t;
/*****************************************************************************
* The vlc_fourcc_t type.
*****************************************************************************
* See http://www.webartz.com/fourcc/ for a very detailed list.
*****************************************************************************/
typedef u32 vlc_fourcc_t;
#define VLC_FOURCC( a, b, c, d ) \
( ((u32)a) | ( ((u32)b) << 8 ) | ( ((u32)c) << 16 ) | ( ((u32)d) << 24 ) )
#define VLC_TWOCC( a, b ) \
( (u16)(a) | ( (u16)(b) << 8 ) )
/*****************************************************************************
* Classes declaration
*****************************************************************************/
/* Messages */
VLC_DECLARE_STRUCT(msg_bank_t)
VLC_DECLARE_STRUCT(msg_subscription_t)
/* Playlist */
VLC_DECLARE_STRUCT(playlist_t)
VLC_DECLARE_STRUCT(playlist_item_t)
/* Modules */
VLC_DECLARE_STRUCT(module_bank_t)
VLC_DECLARE_STRUCT(module_t)
VLC_DECLARE_STRUCT(module_config_t)
VLC_DECLARE_STRUCT(module_symbols_t)
/* Interface */
VLC_DECLARE_STRUCT(intf_thread_t)
VLC_DECLARE_STRUCT(intf_sys_t)
VLC_DECLARE_STRUCT(intf_console_t)
VLC_DECLARE_STRUCT(intf_msg_t)
VLC_DECLARE_STRUCT(intf_channel_t)
/* Input */
VLC_DECLARE_STRUCT(input_thread_t)
VLC_DECLARE_STRUCT(input_channel_t)
VLC_DECLARE_STRUCT(input_area_t)
VLC_DECLARE_STRUCT(input_buffers_t)
VLC_DECLARE_STRUCT(input_socket_t)
VLC_DECLARE_STRUCT(input_info_t)
VLC_DECLARE_STRUCT(input_info_category_t)
VLC_DECLARE_STRUCT(access_sys_t)
VLC_DECLARE_STRUCT(demux_sys_t)
VLC_DECLARE_STRUCT(es_descriptor_t)
VLC_DECLARE_STRUCT(es_sys_t)
VLC_DECLARE_STRUCT(pgrm_descriptor_t)
VLC_DECLARE_STRUCT(pgrm_sys_t)
VLC_DECLARE_STRUCT(stream_descriptor_t)
VLC_DECLARE_STRUCT(stream_sys_t)
/* Audio */
VLC_DECLARE_STRUCT(aout_thread_t)
VLC_DECLARE_STRUCT(aout_sys_t)
VLC_DECLARE_STRUCT(aout_fifo_t)
/* Video */
VLC_DECLARE_STRUCT(vout_thread_t)
VLC_DECLARE_STRUCT(vout_font_t)
VLC_DECLARE_STRUCT(vout_sys_t)
VLC_DECLARE_STRUCT(chroma_sys_t)
VLC_DECLARE_STRUCT(picture_t)
VLC_DECLARE_STRUCT(picture_sys_t)
VLC_DECLARE_STRUCT(picture_heap_t)
VLC_DECLARE_STRUCT(subpicture_t)
VLC_DECLARE_STRUCT(subpicture_sys_t)
/* Decoders */
VLC_DECLARE_STRUCT(decoder_fifo_t)
/* Misc */
VLC_DECLARE_STRUCT(data_packet_t)
VLC_DECLARE_STRUCT(data_buffer_t)
VLC_DECLARE_STRUCT(stream_position_t)
VLC_DECLARE_STRUCT(stream_ctrl_t)
VLC_DECLARE_STRUCT(pes_packet_t)
VLC_DECLARE_STRUCT(bit_stream_t)
VLC_DECLARE_STRUCT(network_socket_t)
VLC_DECLARE_STRUCT(iso639_lang_t)
/*****************************************************************************
* Plug-in stuff
*****************************************************************************/
#ifndef __PLUGIN__
# define VLC_EXPORT( type, name, args ) type name args;
#else
# define VLC_EXPORT( type, name, args ) ;
extern module_symbols_t* p_symbols;
#endif
/*****************************************************************************
* OS-specific headers and thread types
*****************************************************************************/
#if defined( WIN32 )
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
#endif
#include "vlc_threads.h"
/*****************************************************************************
* Common structure members
*****************************************************************************/
/* VLC_COMMON_MEMBERS : members common to all basic vlc objects */
#define VLC_COMMON_MEMBERS \
int i_object_id; \
int i_object_type; \
char *psz_object_type; \
char *psz_object_name; \
\
/* Thread properties, if any */ \
vlc_bool_t b_thread; \
vlc_thread_t thread_id; \
\
/* Object access lock */ \
vlc_mutex_t object_lock; \
vlc_cond_t object_wait; \
\
volatile vlc_bool_t b_error; /* set by the object */ \
volatile vlc_bool_t b_die; /* set by the outside */ \
volatile vlc_bool_t b_dead; /* set by the object */ \
\
vlc_t * p_vlc; /* root of all evil */ \
\
volatile int i_refcount; \
vlc_object_t ** pp_parents; /* our parents */ \
volatile int i_parents; \
vlc_object_t ** pp_children; /* our children */ \
volatile int i_children; \
\
/* Private data */ \
void * p_private; \
\
/* Just a reminder so that people don't cast garbage */ \
int be_sure_to_add_VLC_COMMON_MEMBERS_to_struct; \
/* The real vlc_object_t type. Yes, it's that simple :-) */
struct vlc_object_t
{
VLC_COMMON_MEMBERS
};
/* VLC_OBJECT: attempt at doing a clever cast */
#define VLC_OBJECT( x ) \
((vlc_object_t *)(x))+0*(x)->be_sure_to_add_VLC_COMMON_MEMBERS_to_struct
/*****************************************************************************
* Macros and inline functions
*****************************************************************************/
#ifdef NTOHL_IN_SYS_PARAM_H
# include <sys/param.h>
#elif !defined(WIN32) /* NTOHL_IN_SYS_PARAM_H || WIN32 */
# include <netinet/in.h>
#endif /* NTOHL_IN_SYS_PARAM_H || WIN32 */
/* CEIL: division with round to nearest greater integer */
#define CEIL(n, d) ( ((n) / (d)) + ( ((n) % (d)) ? 1 : 0) )
/* PAD: PAD(n, d) = CEIL(n ,d) * d */
#define PAD(n, d) ( ((n) % (d)) ? ((((n) / (d)) + 1) * (d)) : (n) )
/* __MAX and __MIN: self explanatory */
#ifndef __MAX
# define __MAX(a, b) ( ((a) > (b)) ? (a) : (b) )
#endif
#ifndef __MIN
# define __MIN(a, b) ( ((a) < (b)) ? (a) : (b) )
#endif
/* MSB (big endian)/LSB (little endian) conversions - network order is always
* MSB, and should be used for both network communications and files. Note that
* byte orders other than little and big endians are not supported, but only
* the VAX seems to have such exotic properties. */
static inline u16 U16_AT( void * _p )
{
u8 * p = (u8 *)_p;
return ( ((u16)p[0] << 8) | p[1] );
}
static inline u32 U32_AT( void * _p )
{
u8 * p = (u8 *)_p;
return ( ((u32)p[0] << 24) | ((u32)p[1] << 16) | ((u32)p[2] << 8) | p[3] );
}
static inline u64 U64_AT( void * _p )
{
u8 * p = (u8 *)_p;
return ( ((u64)p[0] << 56) | ((u64)p[1] << 48) | ((u64)p[2] << 40)
| ((u64)p[3] << 32) | ((u64)p[4] << 24) | ((u64)p[5] << 16)
| ((u64)p[6] << 8) | p[7] );
}
#if WORDS_BIGENDIAN
# define hton16(i) ( i )
# define hton32(i) ( i )
# define hton64(i) ( i )
# define ntoh16(i) ( i )
# define ntoh32(i) ( i )
# define ntoh64(i) ( i )
#else
# define hton16(i) U16_AT(&i)
# define hton32(i) U32_AT(&i)
# define hton64(i) U64_AT(&i)
# define ntoh16(i) U16_AT(&i)
# define ntoh32(i) U32_AT(&i)
# define ntoh64(i) U64_AT(&i)
#endif
/* Alignment of critical static data structures */
#ifdef ATTRIBUTE_ALIGNED_MAX
# define ATTR_ALIGN(align) __attribute__ ((__aligned__ ((ATTRIBUTE_ALIGNED_MAX < align) ? ATTRIBUTE_ALIGNED_MAX : align)))
#else
# define ATTR_ALIGN(align)
#endif
/* Alignment of critical dynamic data structure
*
* Not all platforms support memalign so we provide a vlc_memalign wrapper
* void *vlc_memalign( size_t align, size_t size, void **pp_orig )
* *pp_orig is the pointer that has to be freed afterwards.
*/
#if 0
#ifdef HAVE_POSIX_MEMALIGN
# define vlc_memalign(align,size,pp_orig) \
( !posix_memalign( pp_orig, align, size ) ? *(pp_orig) : NULL )
#endif
#endif
#ifdef HAVE_MEMALIGN
/* Some systems have memalign() but no declaration for it */
void * memalign( size_t align, size_t size );
# define vlc_memalign(pp_orig,align,size) \
( *(pp_orig) = memalign( align, size ) )
#else /* We don't have any choice but to align manually */
# define vlc_memalign(pp_orig,align,size) \
(( *(pp_orig) = malloc( size + align - 1 )) \
? (void *)( (((unsigned long)*(pp_orig)) + (unsigned long)(align-1) ) \
& (~(unsigned long)(align-1)) ) \
: NULL )
#endif
/* strndup (defined in src/misc/extras.c) */
#ifndef HAVE_STRNDUP
char * strndup( const char *s, size_t n );
#endif
#define I64C(x) x##LL
#ifdef WIN32
/* win32, cl and icl support */
# if defined( _MSC_VER ) || !defined( __MINGW32__ )
# define __attribute__(x)
# define __inline__ __inline
# define strncasecmp strnicmp
# define strcasecmp stricmp
# define S_IFBLK 0x3000 /* Block */
# define S_ISBLK(m) (0)
# define S_ISCHR(m) (0)
# define S_ISFIFO(m) (((m)&_S_IFMT) == _S_IFIFO)
# define S_ISREG(m) (((m)&_S_IFMT) == _S_IFREG)
# undef I64C
# define I64C(x) x##i64
# endif
/* several type definitions */
# if defined( __MINGW32__ )
# if !defined( _OFF_T_ )
typedef long long _off_t;
typedef _off_t off_t;
# define _OFF_T_
# else
# define off_t long long
# endif
# endif
# if defined( _MSC_VER )
# if !defined( _OFF_T_DEFINED )
typedef __int64 off_t;
# define _OFF_T_DEFINED
# else
# define off_t __int64
# endif
# endif
# if defined( __BORLANDC__ )
# undef off_t
# define off_t unsigned __int64
# endif
# ifndef O_NONBLOCK
# define O_NONBLOCK 0
# endif
# ifndef snprintf
# define snprintf _snprintf /* snprintf not defined in mingw32 (bug?) */
# endif
#endif
/*****************************************************************************
* CPU capabilities
*****************************************************************************/
#define CPU_CAPABILITY_NONE 0
#define CPU_CAPABILITY_486 (1<<0)
#define CPU_CAPABILITY_586 (1<<1)
#define CPU_CAPABILITY_PPRO (1<<2)
#define CPU_CAPABILITY_MMX (1<<3)
#define CPU_CAPABILITY_3DNOW (1<<4)
#define CPU_CAPABILITY_MMXEXT (1<<5)
#define CPU_CAPABILITY_SSE (1<<6)
#define CPU_CAPABILITY_ALTIVEC (1<<16)
#define CPU_CAPABILITY_FPU (1<<31)
/*****************************************************************************
* I18n stuff
*****************************************************************************/
#ifndef PACKAGE /* Borland C++ uses this ! */
#define PACKAGE VLC_PACKAGE
#endif
#define VERSION VLC_VERSION
#if defined( ENABLE_NLS ) && defined ( HAVE_GETTEXT ) && !defined( __BORLANDC__ ) && !defined( MODULE_NAME_IS_gnome )
# include <libintl.h>
# undef _
# define _(String) dgettext (PACKAGE, String)
# ifdef gettext_noop
# define N_(String) gettext_noop (String)
# else
# define N_(String) (String)
# endif
#elif !defined( MODULE_NAME_IS_gnome )
# define _(String) (String)
# define N_(String) (String)
#endif
/*****************************************************************************
* Plug-in stuff
*****************************************************************************/
#include "vlc_symbols.h"
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