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vlc_common.h
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/*****************************************************************************
* common.h: common definitions
* Collection of useful common types and macros definitions
*****************************************************************************
* Copyright (C) 1998-2005 the VideoLAN team
* $Id$
*
* Authors: Samuel Hocevar <[email protected]>
* Vincent Seguin <[email protected]>
* Gildas Bazin <[email protected]>
*
* 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/**
* \file
* This file is a collection of common definitions and types
*/
/*****************************************************************************
* Required vlc headers
*****************************************************************************/
#if defined( __BORLANDC__ )
# undef PACKAGE
#endif
#include "config.h"
#if defined(PACKAGE)
# undef PACKAGE_NAME
# define PACKAGE_NAME PACKAGE
#endif
#if defined(VERSION)
# undef PACKAGE_VERSION
# define PACKAGE_VERSION VERSION
#endif
#if defined( __BORLANDC__ )
# undef HAVE_VARIADIC_MACROS
# undef HAVE_STDINT_H
# undef HAVE_INTTYPES_H
# undef off_t
#elif defined( _MSC_VER )
# pragma warning( disable : 4244 )
#endif
#include "vlc_config.h"
/*****************************************************************************
* Required system headers
*****************************************************************************/
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
/*****************************************************************************
* Basic types definitions
*****************************************************************************/
#if defined( HAVE_STDINT_H )
# include <stdint.h>
#elif defined( HAVE_INTTYPES_H )
# include <inttypes.h>
#elif defined( SYS_CYGWIN )
# include <sys/types.h>
/* Cygwin only defines half of these... */
typedef u_int8_t uint8_t;
typedef u_int16_t uint16_t;
typedef u_int32_t uint32_t;
typedef u_int64_t uint64_t;
#else
/* Fallback types (very x86-centric, sorry) */
typedef unsigned char uint8_t;
typedef signed char int8_t;
typedef unsigned short uint16_t;
typedef signed short int16_t;
typedef unsigned int uint32_t;
typedef signed int int32_t;
# if defined( _MSC_VER ) \
|| defined( UNDER_CE ) \
|| ( defined( WIN32 ) && !defined( __MINGW32__ ) )
typedef unsigned __int64 uint64_t;
typedef signed __int64 int64_t;
# else
typedef unsigned long long uint64_t;
typedef signed long long int64_t;
# endif
typedef uint32_t uintptr_t;
typedef int32_t intptr_t;
#endif
typedef uint8_t byte_t;
/* Systems that don't have stdint.h may not define INT64_MIN and
INT64_MAX */
#ifndef INT64_MIN
#define INT64_MIN (-9223372036854775807LL-1)
#endif
#ifndef INT64_MAX
#define INT64_MAX (9223372036854775807LL)
#endif
/* 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 ) || defined( UNDER_CE )
# include <malloc.h>
# ifndef PATH_MAX
# define PATH_MAX MAX_PATH
# endif
#endif
#if (defined( WIN32 ) || defined( UNDER_CE )) && !defined( _SSIZE_T_ )
typedef int ssize_t;
#endif
/* Counter for statistics and profiling */
typedef unsigned long count_t;
/* DCT elements types */
typedef int16_t dctelem_t;
/* Video buffer types */
typedef uint8_t yuv_data_t;
/* Audio volume */
typedef uint16_t audio_volume_t;
#ifndef HAVE_SOCKLEN_T
typedef int socklen_t;
#endif
/**
* High precision date or time interval
*
* Store a high precision date or time interval. The maximum precision is the
* microsecond, and a 64 bits integer is used to avoid overflows (maximum
* time interval is then 292271 years, which should be long enough for any
* video). Dates are stored as microseconds since a common date (usually the
* epoch). Note that date and time intervals can be manipulated using regular
* arithmetic operators, and that no special functions are required.
*/
typedef int64_t mtime_t;
/**
* The vlc_fourcc_t type.
*
* See http://www.webartz.com/fourcc/ for a very detailed list.
*/
typedef uint32_t vlc_fourcc_t;
#ifdef WORDS_BIGENDIAN
# define VLC_FOURCC( a, b, c, d ) \
( ((uint32_t)d) | ( ((uint32_t)c) << 8 ) \
| ( ((uint32_t)b) << 16 ) | ( ((uint32_t)a) << 24 ) )
# define VLC_TWOCC( a, b ) \
( (uint16_t)(b) | ( (uint16_t)(a) << 8 ) )
#else
# define VLC_FOURCC( a, b, c, d ) \
( ((uint32_t)a) | ( ((uint32_t)b) << 8 ) \
| ( ((uint32_t)c) << 16 ) | ( ((uint32_t)d) << 24 ) )
# define VLC_TWOCC( a, b ) \
( (uint16_t)(a) | ( (uint16_t)(b) << 8 ) )
#endif
static inline void __vlc_fourcc_to_char( vlc_fourcc_t fcc, char *psz_fourcc )
{
#ifdef WORDS_BIGENDIAN
psz_fourcc[0] = (uint32_t) (fcc >> 24);
psz_fourcc[1] = (uint32_t) (fcc >> 16);
psz_fourcc[2] = (uint32_t) (fcc >> 8);
psz_fourcc[3] = (uint32_t) (fcc);
#else
psz_fourcc[3] = (uint32_t) (fcc >> 24);
psz_fourcc[2] = (uint32_t) (fcc >> 16);
psz_fourcc[1] = (uint32_t) (fcc >> 8);
psz_fourcc[0] = (uint32_t) (fcc);
#endif
}
#define vlc_fourcc_to_char( a, b ) \
__vlc_fourcc_to_char( (vlc_fourcc_t)(a), (char *)(b) )
/*****************************************************************************
* Classes declaration
*****************************************************************************/
/* Internal types */
typedef struct libvlc_global_data_t libvlc_global_data_t;
typedef struct libvlc_int_t libvlc_int_t;
typedef struct variable_t variable_t;
typedef struct date_t date_t;
typedef struct dict_entry_t dict_entry_t;
typedef struct dict_t dict_t;
typedef struct gc_object_t gc_object_t ;
/* Messages */
typedef struct msg_bank_t msg_bank_t;
typedef struct msg_queue_t msg_queue_t;
typedef struct msg_subscription_t msg_subscription_t;
/* Playlist */
/* FIXME */
/**
* Playlist commands
*/
typedef enum {
PLAYLIST_PLAY, /**< No arg. res=can fail*/
PLAYLIST_AUTOPLAY, /**< No arg. res=cant fail*/
PLAYLIST_VIEWPLAY, /**< arg1= playlist_item_t*,*/
/** arg2 = playlist_item_t* , res=can fail */
PLAYLIST_PAUSE, /**< No arg res=can fail*/
PLAYLIST_STOP, /**< No arg res=can fail*/
PLAYLIST_SKIP, /**< arg1=int, res=can fail*/
} playlist_command_t;
typedef struct playlist_t playlist_t;
typedef struct playlist_item_t playlist_item_t;
typedef struct playlist_view_t playlist_view_t;
typedef struct playlist_export_t playlist_export_t;
typedef struct services_discovery_t services_discovery_t;
typedef struct services_discovery_sys_t services_discovery_sys_t;
typedef struct playlist_add_t playlist_add_t;
typedef struct playlist_preparse_t playlist_preparse_t;
typedef struct playlist_fetcher_t playlist_fetcher_t;
/* Modules */
typedef struct module_bank_t module_bank_t;
typedef struct module_t module_t;
typedef struct module_config_t module_config_t;
typedef struct module_symbols_t module_symbols_t;
typedef struct module_cache_t module_cache_t;
typedef struct config_category_t config_category_t;
/* Interface */
typedef struct intf_thread_t intf_thread_t;
typedef struct intf_sys_t intf_sys_t;
typedef struct intf_console_t intf_console_t;
typedef struct intf_msg_t intf_msg_t;
typedef struct interaction_t interaction_t;
typedef struct interaction_dialog_t interaction_dialog_t;
typedef struct user_widget_t user_widget_t;
/* Input */
typedef struct input_thread_t input_thread_t;
typedef struct input_thread_sys_t input_thread_sys_t;
typedef struct input_item_t input_item_t;
typedef struct access_t access_t;
typedef struct access_sys_t access_sys_t;
typedef struct stream_t stream_t;
typedef struct stream_sys_t stream_sys_t;
typedef struct demux_t demux_t;
typedef struct demux_meta_t demux_meta_t;
typedef struct demux_sys_t demux_sys_t;
typedef struct es_out_t es_out_t;
typedef struct es_out_id_t es_out_id_t;
typedef struct es_out_sys_t es_out_sys_t;
typedef struct es_descriptor_t es_descriptor_t;
typedef struct seekpoint_t seekpoint_t;
typedef struct info_t info_t;
typedef struct info_category_t info_category_t;
typedef struct input_attachment_t input_attachment_t;
/* Format */
typedef struct audio_format_t audio_format_t;
typedef struct video_format_t video_format_t;
typedef struct subs_format_t subs_format_t;
typedef struct es_format_t es_format_t;
typedef struct video_palette_t video_palette_t;
/* Audio */
typedef struct aout_instance_t aout_instance_t;
typedef struct aout_sys_t aout_sys_t;
typedef struct aout_fifo_t aout_fifo_t;
typedef struct aout_input_t aout_input_t;
typedef struct aout_buffer_t aout_buffer_t;
typedef audio_format_t audio_sample_format_t;
typedef struct audio_date_t audio_date_t;
typedef struct aout_filter_t aout_filter_t;
/* Video */
typedef struct vout_thread_t vout_thread_t;
typedef struct vout_sys_t vout_sys_t;
typedef struct chroma_sys_t chroma_sys_t;
typedef video_format_t video_frame_format_t;
typedef struct picture_t picture_t;
typedef struct picture_sys_t picture_sys_t;
typedef struct picture_heap_t picture_heap_t;
/* Subpictures */
typedef struct spu_t spu_t;
typedef struct subpicture_t subpicture_t;
typedef struct subpicture_sys_t subpicture_sys_t;
typedef struct subpicture_region_t subpicture_region_t;
typedef struct text_style_t text_style_t;
typedef struct image_handler_t image_handler_t;
/* Stream output */
typedef struct sout_instance_t sout_instance_t;
typedef struct sout_instance_sys_t sout_instance_sys_t;
typedef struct sout_input_t sout_input_t;
typedef struct sout_packetizer_input_t sout_packetizer_input_t;
typedef struct sout_access_out_t sout_access_out_t;
typedef struct sout_access_out_sys_t sout_access_out_sys_t;
typedef struct sout_mux_t sout_mux_t;
typedef struct sout_mux_sys_t sout_mux_sys_t;
typedef struct sout_stream_t sout_stream_t;
typedef struct sout_stream_sys_t sout_stream_sys_t;
typedef struct config_chain_t config_chain_t;
typedef struct sap_session_t sap_session_t;
typedef struct sap_address_t sap_address_t;
typedef struct session_descriptor_t session_descriptor_t;
typedef struct announce_method_t announce_method_t;
typedef struct announce_handler_t announce_handler_t;
typedef struct sap_handler_t sap_handler_t;
typedef struct sout_param_t sout_param_t;
typedef struct sout_pcat_t sout_pcat_t;
typedef struct sout_std_t sout_std_t;
typedef struct sout_display_t sout_display_t;
typedef struct sout_duplicate_t sout_duplicate_t;
typedef struct sout_transcode_t sout_transcode_t;
typedef struct sout_chain_t sout_chain_t;
typedef struct streaming_profile_t streaming_profile_t;
typedef struct sout_module_t sout_module_t;
typedef struct sout_gui_descr_t sout_gui_descr_t;
typedef struct profile_parser_t profile_parser_t;
/* Decoders */
typedef struct decoder_t decoder_t;
typedef struct decoder_sys_t decoder_sys_t;
typedef struct decoder_synchro_t decoder_synchro_t;
/* Encoders */
typedef struct encoder_t encoder_t;
typedef struct encoder_sys_t encoder_sys_t;
/* Filters */
typedef struct filter_t filter_t;
typedef struct filter_sys_t filter_sys_t;
/* Network */
typedef struct network_socket_t network_socket_t;
typedef struct virtual_socket_t v_socket_t;
typedef struct sockaddr sockaddr;
typedef struct addrinfo addrinfo;
typedef struct vlc_acl_t vlc_acl_t;
/* Misc */
typedef struct iso639_lang_t iso639_lang_t;
typedef struct device_t device_t;
typedef struct device_probe_t device_probe_t;
typedef struct probe_sys_t probe_sys_t;
/* block */
typedef struct block_t block_t;
typedef struct block_fifo_t block_fifo_t;
/* httpd */
typedef struct httpd_t httpd_t;
typedef struct httpd_host_t httpd_host_t;
typedef struct httpd_url_t httpd_url_t;
typedef struct httpd_client_t httpd_client_t;
typedef struct httpd_callback_sys_t httpd_callback_sys_t;
typedef struct httpd_message_t httpd_message_t;
typedef int (*httpd_callback_t)( httpd_callback_sys_t *, httpd_client_t *, httpd_message_t *answer, const httpd_message_t *query );
typedef struct httpd_file_t httpd_file_t;
typedef struct httpd_file_sys_t httpd_file_sys_t;
typedef int (*httpd_file_callback_t)( httpd_file_sys_t *, httpd_file_t *, uint8_t *psz_request, uint8_t **pp_data, int *pi_data );
typedef struct httpd_handler_t httpd_handler_t;
typedef struct httpd_handler_sys_t httpd_handler_sys_t;
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 );
typedef struct httpd_redirect_t httpd_redirect_t;
typedef struct httpd_stream_t httpd_stream_t;
/* TLS support */
typedef struct tls_server_t tls_server_t;
typedef struct tls_session_t tls_session_t;
/* Hashing */
typedef struct md5_s md5_t;
/* XML */
typedef struct xml_t xml_t;
typedef struct xml_sys_t xml_sys_t;
typedef struct xml_reader_t xml_reader_t;
typedef struct xml_reader_sys_t xml_reader_sys_t;
/* vod server */
typedef struct vod_t vod_t;
typedef struct vod_sys_t vod_sys_t;
typedef struct vod_media_t vod_media_t;
/* opengl */
typedef struct opengl_t opengl_t;
typedef struct opengl_sys_t opengl_sys_t;
/* osdmenu */
typedef struct osd_menu_t osd_menu_t;
typedef struct osd_state_t osd_state_t;
typedef struct osd_event_t osd_event_t;
typedef struct osd_button_t osd_button_t;
typedef struct osd_menu_state_t osd_menu_state_t;
/* VLM */
typedef struct vlm_t vlm_t;
typedef struct vlm_message_t vlm_message_t;
/* divers */
typedef struct vlc_meta_t vlc_meta_t;
typedef struct meta_export_t meta_export_t;
/* Stats */
typedef struct counter_t counter_t;
typedef struct counter_sample_t counter_sample_t;
typedef struct stats_handler_t stats_handler_t;
typedef struct input_stats_t input_stats_t;
typedef struct global_stats_t global_stats_t;
/* Update */
typedef struct update_t update_t;
typedef struct update_iterator_t update_iterator_t;
/* Meta engine */
typedef struct meta_engine_t meta_engine_t;
/* stat/lstat/fstat */
#ifdef WIN32
#include <sys/stat.h>
struct _stati64;
#define stat _stati64
#define fstat _fstati64
/* You should otherwise use utf8_stat and utf8_lstat. */
#else
struct stat;
#endif
/*****************************************************************************
* Variable callbacks
*****************************************************************************/
typedef int ( * vlc_callback_t ) ( vlc_object_t *, /* variable's object */
char const *, /* variable name */
vlc_value_t, /* old value */
vlc_value_t, /* new value */
void * ); /* callback data */
/*****************************************************************************
* Plug-in stuff
*****************************************************************************/
#include "vlc_modules_macros.h"
#if defined (WIN32) && defined (DLL_EXPORT)
# ifdef __cplusplus
# define VLC_PUBLIC_API __declspec(dllexport)
# define VLC_PRIVATE_API __declspec(dllexport)
# define VLC_EXPORT( type, name, args ) extern "C" __declspec(dllexport) type name args
# define VLC_INTERNAL( type, name, args ) extern "C" type name args
# else
# define VLC_PUBLIC_API extern __declspec(dllexport)
# define VLC_PRIVATE_API extern __declspec(dllexport)
# define VLC_EXPORT( type, name, args ) __declspec(dllexport) type name args
# define VLC_INTERNAL( type, name, args ) type name args
# endif
#else
# ifdef __cplusplus
# if HAVE_ATTRIBUTE_VISIBILITY
# define VLC_PUBLIC_API __attribute__((visibility("default")))
# define VLC_PRIVATE_API __attribute__((visibility("default")))
# define VLC_EXPORT( type, name, args ) extern "C" __attribute__((visibility("default"))) type name args
# define VLC_INTERNAL( type, name, args ) extern "C" __attribute__((visibility("hidden"))) type name args
# else
# define VLC_PUBLIC_API
# define VLC_EXPORT( type, name, args ) extern "C" type name args
# define VLC_INTERNAL( type, name, args ) extern "C" type name args
# endif
# else
# if HAVE_ATTRIBUTE_VISIBILITY
# define VLC_PUBLIC_API extern __attribute__((visibility("default")))
# define VLC_PRIVATE_API extern __attribute__((visibility("default")))
# define VLC_EXPORT( type, name, args ) __attribute__((visibility("default"))) type name args
# define VLC_INTERNAL( type, name, args ) __attribute__((visibility("hidden"))) type name args
# else
# define VLC_PUBLIC_API extern
# define VLC_PRIVATE_API extern
# define VLC_EXPORT( type, name, args ) type name args
# define VLC_INTERNAL( type, name, args ) type name args
# endif
# endif
#endif
/*****************************************************************************
* OS-specific headers and thread types
*****************************************************************************/
#if defined( WIN32 ) || defined( UNDER_CE )
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# if defined( UNDER_CE )
# define IS_WINNT 0
# else
# define IS_WINNT ( GetVersion() < 0x80000000 )
# endif
#endif
#include "vlc_threads.h"
typedef struct vlc_object_internals_t vlc_object_internals_t;
/*****************************************************************************
* Common structure members
*****************************************************************************/
/* VLC_COMMON_MEMBERS : members common to all basic vlc objects */
#define VLC_COMMON_MEMBERS \
/** \name VLC_COMMON_MEMBERS \
* these members are common for all vlc objects \
*/ \
/**@{*/ \
vlc_object_internals_t *p_internals; \
int i_object_id; \
int i_object_type; \
const char *psz_object_type; \
const char *psz_object_name; \
\
/* Messages header */ \
char *psz_header; \
int i_flags; \
\
/* Object access lock */ \
vlc_mutex_t object_lock; \
vlc_cond_t object_wait; \
\
/* Object properties */ \
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_bool_t b_force; /**< set by the outside (eg. module_Need()) */ \
\
/* Stuff related to the libvlc structure */ \
libvlc_int_t *p_libvlc; /**< (root of all evil) - 1 */ \
\
vlc_object_t * p_parent; /**< our parent */ \
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; \
/**@}*/ \
/* 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
#define VLC_GC_MEMBERS \
/** \name VLC_GC_MEMBERS \
* these members are common to all objects that wish to be garbage-collected \
*/ \
/**@{*/ \
int i_gc_refcount; \
void (*pf_destructor) ( gc_object_t * ); \
void *p_destructor_arg; \
/**@}*/
struct gc_object_t
{
VLC_GC_MEMBERS
};
static inline void __vlc_gc_incref( gc_object_t * p_gc )
{
p_gc->i_gc_refcount ++;
};
static inline void __vlc_gc_decref( gc_object_t *p_gc )
{
p_gc->i_gc_refcount -- ;
if( p_gc->i_gc_refcount == 0 )
{
p_gc->pf_destructor( p_gc );
/* Do not use the p_gc pointer from now on ! */
}
}
#define vlc_gc_incref( a ) __vlc_gc_incref( (gc_object_t *)a )
#define vlc_gc_decref( a ) __vlc_gc_decref( (gc_object_t *)a )
#define vlc_gc_init( a,b,c ) { ((gc_object_t *)a)->i_gc_refcount = 0; \
((gc_object_t *)a)->pf_destructor = b; \
((gc_object_t *)a)->p_destructor_arg = c; }
/*****************************************************************************
* Macros and inline functions
*****************************************************************************/
#ifdef NTOHL_IN_SYS_PARAM_H
# include <sys/param.h>
#elif !defined(WIN32) && !defined( UNDER_CE )
# 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
static int64_t GCD( int64_t a, int64_t b )
{
if( b ) return GCD( b, a % b );
else return a;
}
/* function imported from libavutil/common.h */
static inline uint8_t clip_uint8_vlc( int32_t a )
{
if( a&(~255) ) return (-a)>>31;
else return a;
}
/* Malloc with automatic error */
#define MALLOC_VOID( var, type ) do { var = (type*)malloc( sizeof( type) ); \
if( !var ) return; } while(0)
#define MALLOC_NULL( var, type ) do { var = (type*)malloc( sizeof( type) ); \
if( !var ) return NULL; } while(0)
#define MALLOC_ERR( var, type ) do { var = (type*)malloc( sizeof( type) ); \
if( !var ) return VLC_ENOMEM; } while(0)
#define MALLOC_GOTOERR( var, type ) do { var = (type*)malloc( sizeof( type) ); \
if( !var ) goto error; } while(0)
#define DECMALLOC_VOID( var, type ) type* var = (type*)malloc( sizeof(type) );\
if( !var ) return;
#define DECMALLOC_ERR( var, type ) type* var = (type*)malloc( sizeof(type) );\
if( !var ) return VLC_ENOMEM;
#define DECMALLOC_NULL( var, type ) type* var = (type*)malloc( sizeof(type) );\
if( !var ) return NULL;
#define FREENULL(a) do { free( a ); a = NULL; } while(0)
#define EMPTY_STR(str) (!str || !*str)
VLC_EXPORT( char const *, vlc_error, ( int ) );
#include <vlc_arrays.h>
/* 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 uint16_t U16_AT( const void * _p )
{
const uint8_t * p = (const uint8_t *)_p;
return ( ((uint16_t)p[0] << 8) | p[1] );
}
static inline uint32_t U32_AT( const void * _p )
{
const uint8_t * p = (const uint8_t *)_p;
return ( ((uint32_t)p[0] << 24) | ((uint32_t)p[1] << 16)
| ((uint32_t)p[2] << 8) | p[3] );
}
static inline uint64_t U64_AT( const void * _p )
{
const uint8_t * p = (const uint8_t *)_p;
return ( ((uint64_t)p[0] << 56) | ((uint64_t)p[1] << 48)
| ((uint64_t)p[2] << 40) | ((uint64_t)p[3] << 32)
| ((uint64_t)p[4] << 24) | ((uint64_t)p[5] << 16)
| ((uint64_t)p[6] << 8) | p[7] );
}
static inline uint16_t GetWLE( const void * _p )
{
const uint8_t * p = (const uint8_t *)_p;
return ( ((uint16_t)p[1] << 8) | p[0] );
}
static inline uint32_t GetDWLE( const void * _p )
{
const uint8_t * p = (const uint8_t *)_p;
return ( ((uint32_t)p[3] << 24) | ((uint32_t)p[2] << 16)
| ((uint32_t)p[1] << 8) | p[0] );
}
static inline uint64_t GetQWLE( const void * _p )
{
const uint8_t * p = (const uint8_t *)_p;
return ( ((uint64_t)p[7] << 56) | ((uint64_t)p[6] << 48)
| ((uint64_t)p[5] << 40) | ((uint64_t)p[4] << 32)
| ((uint64_t)p[3] << 24) | ((uint64_t)p[2] << 16)
| ((uint64_t)p[1] << 8) | p[0] );
}
#define GetWBE( p ) U16_AT( p )
#define GetDWBE( p ) U32_AT( p )
#define GetQWBE( p ) U64_AT( p )
/* Helper writer functions */
#define SetWLE( p, v ) _SetWLE( (uint8_t*)(p), v)
static inline void _SetWLE( uint8_t *p, uint16_t i_dw )
{
p[1] = ( i_dw >> 8 )&0xff;
p[0] = ( i_dw )&0xff;
}
#define SetDWLE( p, v ) _SetDWLE( (uint8_t*)(p), v)
static inline void _SetDWLE( uint8_t *p, uint32_t i_dw )
{
p[3] = ( i_dw >> 24 )&0xff;
p[2] = ( i_dw >> 16 )&0xff;
p[1] = ( i_dw >> 8 )&0xff;
p[0] = ( i_dw )&0xff;
}
#define SetQWLE( p, v ) _SetQWLE( (uint8_t*)(p), v)
static inline void _SetQWLE( uint8_t *p, uint64_t i_qw )
{
SetDWLE( p, i_qw&0xffffffff );
SetDWLE( p+4, ( i_qw >> 32)&0xffffffff );
}
#define SetWBE( p, v ) _SetWBE( (uint8_t*)(p), v)
static inline void _SetWBE( uint8_t *p, uint16_t i_dw )
{
p[0] = ( i_dw >> 8 )&0xff;
p[1] = ( i_dw )&0xff;
}
#define SetDWBE( p, v ) _SetDWBE( (uint8_t*)(p), v)
static inline void _SetDWBE( uint8_t *p, uint32_t i_dw )
{
p[0] = ( i_dw >> 24 )&0xff;
p[1] = ( i_dw >> 16 )&0xff;
p[2] = ( i_dw >> 8 )&0xff;
p[3] = ( i_dw )&0xff;
}
#define SetQWBE( p, v ) _SetQWBE( (uint8_t*)(p), v)
static inline void _SetQWBE( uint8_t *p, uint64_t i_qw )
{
SetDWBE( p+4, i_qw&0xffffffff );
SetDWBE( p, ( i_qw >> 32)&0xffffffff );
}
#ifdef 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
/* Format string sanity checks */
#ifdef HAVE_ATTRIBUTE_FORMAT
# define ATTRIBUTE_FORMAT(x,y) __attribute__ ((format(printf,x,y)))
#else
# define ATTRIBUTE_FORMAT(x,y)
#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
/* */
#define VLC_UNUSED(x) (void)(x)
/* 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
/* Stuff defined in src/extras/libc.c */
#ifndef HAVE_STRDUP
# define strdup vlc_strdup
VLC_EXPORT( char *, vlc_strdup, ( const char *s ) );
#elif !defined(__PLUGIN__)
# define vlc_strdup NULL
#endif
#if !defined(HAVE_VASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
# define vasprintf vlc_vasprintf
VLC_EXPORT( int, vlc_vasprintf, (char **, const char *, va_list ) );
#elif !defined(__PLUGIN__)
# define vlc_vasprintf NULL
#endif
#if !defined(HAVE_ASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
# define asprintf vlc_asprintf
VLC_EXPORT( int, vlc_asprintf, (char **, const char *, ... ) ATTRIBUTE_FORMAT( 2, 3 ) );
#elif !defined(__PLUGIN__)
# define vlc_asprintf NULL
#endif
#ifndef HAVE_STRNDUP
# if defined(STRNDUP_IN_GNOME_H) && \
(defined(MODULE_NAME_IS_gnome)||defined(MODULE_NAME_IS_gnome_main)||\
defined(MODULE_NAME_IS_gnome2)||defined(MODULE_NAME_IS_gnome2_main))
/* Do nothing: gnome.h defines strndup for us */
# else
# define strndup vlc_strndup
VLC_EXPORT( char *, vlc_strndup, ( const char *s, size_t n ) );
# endif
#elif !defined(__PLUGIN__)
# define vlc_strndup NULL
#endif
#ifndef HAVE_STRNLEN
# define strnlen vlc_strnlen
VLC_EXPORT( size_t, vlc_strnlen, ( const char *, size_t ) );
#elif !defined(__PLUGIN__)
# define vlc_strnlen NULL
#endif
#ifndef HAVE_STRLCPY
# define strlcpy vlc_strlcpy
VLC_EXPORT( size_t, vlc_strlcpy, ( char *, const char *, size_t ) );
#elif !defined(__PLUGIN__)
# define vlc_strlcpy NULL
#endif
#ifndef HAVE_ATOF
# define atof vlc_atof
VLC_EXPORT( double, vlc_atof, ( const char *nptr ) );
#elif !defined(__PLUGIN__)
# define vlc_atof NULL
#endif
#ifndef HAVE_STRTOF
# ifdef HAVE_STRTOD
# define strtof strtod
# endif
#endif
#ifndef HAVE_ATOLL
# define atoll vlc_atoll
VLC_EXPORT( int64_t, vlc_atoll, ( const char *nptr ) );
#elif !defined(__PLUGIN__)
# define vlc_atoll NULL
#endif
#ifndef HAVE_STRTOLL
# define strtoll vlc_strtoll
VLC_EXPORT( int64_t, vlc_strtoll, ( const char *nptr, char **endptr, int base ) );
#elif !defined(__PLUGIN__)
# define vlc_strtoll NULL
#endif
#if defined(SYS_BEOS) \
|| (defined (__FreeBSD__) && (__FreeBSD__ < 5))
typedef struct {
long long quot; /* Quotient. */
long long rem; /* Remainder. */
} lldiv_t;
# define lldiv vlc_lldiv
VLC_EXPORT( lldiv_t, vlc_lldiv, ( long long numer, long long denom ) );
#elif !defined(__PLUGIN__)
# define vlc_lldiv NULL
#endif
#ifndef HAVE_SCANDIR
# define scandir vlc_scandir
# define alphasort vlc_alphasort
struct dirent;
VLC_EXPORT( int, vlc_scandir, ( const char *name, struct dirent ***namelist, int (*filter) ( const struct dirent * ), int (*compar) ( const struct dirent **, const struct dirent ** ) ) );
VLC_EXPORT( int, vlc_alphasort, ( const struct dirent **a, const struct dirent **b ) );
#elif !defined(__PLUGIN__)
# define vlc_scandir NULL
# define vlc_alphasort NULL
#endif
#ifndef HAVE_GETENV
# define getenv vlc_getenv
VLC_EXPORT( char *, vlc_getenv, ( const char *name ) );
#elif !defined(__PLUGIN__)
# define vlc_getenv NULL
#endif
#ifndef HAVE_STRCASECMP
# ifndef HAVE_STRICMP
# define strcasecmp vlc_strcasecmp
VLC_EXPORT( int, vlc_strcasecmp, ( const char *s1, const char *s2 ) );
# else
# define strcasecmp stricmp
# if !defined(__PLUGIN__)
# define vlc_strcasecmp NULL
# endif
# endif
#elif !defined(__PLUGIN__)
# define vlc_strcasecmp NULL
#endif
#ifndef HAVE_STRNCASECMP
# ifndef HAVE_STRNICMP
# define strncasecmp vlc_strncasecmp
VLC_EXPORT( int, vlc_strncasecmp, ( const char *s1, const char *s2, size_t n ) );
# else
# define strncasecmp strnicmp
# if !defined(__PLUGIN__)
# define vlc_strncasecmp NULL
# endif
# endif
#elif !defined(__PLUGIN__)
# define vlc_strncasecmp NULL
#endif
#ifndef HAVE_STRCASESTR
# ifndef HAVE_STRISTR
# define strcasestr vlc_strcasestr
VLC_EXPORT( char *, vlc_strcasestr, ( const char *s1, const char *s2 ) );
# else
# define strcasestr stristr
# if !defined(__PLUGIN__)
# define vlc_strcasestr NULL
# endif
# endif
#elif !defined(__PLUGIN__)
# define vlc_strcasestr NULL
#endif
#ifndef HAVE_DIRENT_H
typedef void DIR;
# ifndef FILENAME_MAX
# define FILENAME_MAX (260)
# endif