vlc_common.h

mips版本的VLC视频服务器

/* function imported from libavutil/common.h */
LIBVLC_USED
static inline uint8_t clip_uint8_vlc( int32_t a )
{
    if( a&(~255) ) return (-a)>>31;
    else           return a;
}

/* Free and set set the variable to NULL */
#define FREENULL(a) do { free( a ); a = NULL; } while(0)

#define EMPTY_STR(str) (!str || !*str)

VLC_EXPORT( char const *, vlc_error, ( int ) LIBVLC_USED );

#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. */
LIBVLC_USED
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] );
}

LIBVLC_USED
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] );
}

LIBVLC_USED
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] );
}

LIBVLC_USED
static inline uint16_t GetWLE( const void * _p )
{
    const uint8_t * p = (const uint8_t *)_p;
    return ( ((uint16_t)p[1] << 8) | p[0] );
}

LIBVLC_USED
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] );
}

LIBVLC_USED
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 );
}

#define hton16(i) htons(i)
#define hton32(i) htonl(i)
#define ntoh16(i) ntohs(i)
#define ntoh32(i) ntohl(i)

LIBVLC_USED
static inline uint64_t ntoh64 (uint64_t ll)
{
    union { uint64_t qw; uint8_t b[16]; } v = { ll };
    return ((uint64_t)v.b[0] << 56)
         | ((uint64_t)v.b[1] << 48)
         | ((uint64_t)v.b[2] << 40)
         | ((uint64_t)v.b[3] << 32)
         | ((uint64_t)v.b[4] << 24)
         | ((uint64_t)v.b[5] << 16)
         | ((uint64_t)v.b[6] <<  8)
         | ((uint64_t)v.b[7] <<  0);
}
#define hton64(i) ntoh64(i)

/* */
#define VLC_UNUSED(x) (void)(x)

/* Stuff defined in src/extras/libc.c */
VLC_EXPORT( size_t, vlc_strlcpy, ( char *, const char *, size_t ) );
VLC_EXPORT( long long, vlc_strtoll, ( const char *nptr, char **endptr, int base ) LIBVLC_USED );

VLC_EXPORT( char *, vlc_strcasestr, ( const char *s1, const char *s2 ) LIBVLC_USED );
char *vlc_strsep( char **, const char * );

#if defined(WIN32) || defined(UNDER_CE)
/* win32, cl and icl support */
#   if defined( _MSC_VER ) || !defined( __MINGW32__ )
#       define __attribute__(x)
#       define __inline__      __inline
#       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)
#   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
#           ifdef off_t
#               undef off_t
#           endif
#           define off_t long long
#       endif
#   endif

#   if defined( _MSC_VER ) && !defined( __WXMSW__ )
#       if !defined( _OFF_T_DEFINED )
            typedef __int64 off_t;
#           define _OFF_T_DEFINED
#       else
            /* for wx compatibility typedef long off_t; */
#           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 alloca
#       define alloca _alloca
#   endif

    /* These two are not defined in mingw32 (bug?) */
#   ifndef snprintf
#       define snprintf _snprintf
#   endif
#   ifndef vsnprintf
#       define vsnprintf _vsnprintf
#   endif

#   include <tchar.h>
#endif

VLC_EXPORT( bool, vlc_ureduce, ( unsigned *, unsigned *, uint64_t, uint64_t, uint64_t ) );

/* vlc_wraptext (defined in src/extras/libc.c) */
#define wraptext vlc_wraptext
VLC_EXPORT( char *, vlc_wraptext, ( const char *, int ) LIBVLC_USED );

/* iconv wrappers (defined in src/extras/libc.c) */
typedef void *vlc_iconv_t;
VLC_EXPORT( vlc_iconv_t, vlc_iconv_open, ( const char *, const char * ) LIBVLC_USED );
VLC_EXPORT( size_t, vlc_iconv, ( vlc_iconv_t, const char **, size_t *, char **, size_t * ) LIBVLC_USED );
VLC_EXPORT( int, vlc_iconv_close, ( vlc_iconv_t ) );

/* execve wrapper (defined in src/extras/libc.c) */
VLC_EXPORT( int, __vlc_execve, ( vlc_object_t *p_object, int i_argc, char *const *pp_argv, char *const *pp_env, const char *psz_cwd, const char *p_in, size_t i_in, char **pp_data, size_t *pi_data ) LIBVLC_USED );
#define vlc_execve(a,b,c,d,e,f,g,h,i) __vlc_execve(VLC_OBJECT(a),b,c,d,e,f,g,h,i)

/* dir wrappers (defined in src/extras/libc.c) */
VLC_EXPORT(int, vlc_wclosedir, ( void *_p_dir ));

/*****************************************************************************
 * 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_SSE2    (1<<7)
#define CPU_CAPABILITY_ALTIVEC (1<<16)
#define CPU_CAPABILITY_FPU     (1<<31)
VLC_EXPORT( unsigned, vlc_CPU, ( void ) );

typedef void *(*vlc_memcpy_t) (void *tgt, const void *src, size_t n);
typedef void *(*vlc_memset_t) (void *tgt, int c, size_t n);

VLC_EXPORT( void, vlc_fastmem_register, (vlc_memcpy_t cpy, vlc_memset_t set) );
VLC_EXPORT( void *, vlc_memcpy, ( void *, const void *, size_t ) );
VLC_EXPORT( void *, vlc_memset, ( void *, int, size_t ) );

/*****************************************************************************
 * I18n stuff
 *****************************************************************************/
VLC_EXPORT( char *, vlc_gettext, ( const char *msgid ) LIBVLC_USED );

/*****************************************************************************
 * libvlc features
 *****************************************************************************/
VLC_EXPORT( const char *, VLC_Version, ( void ) LIBVLC_USED );
VLC_EXPORT( const char *, VLC_CompileBy, ( void ) LIBVLC_USED );
VLC_EXPORT( const char *, VLC_CompileHost, ( void ) LIBVLC_USED );
VLC_EXPORT( const char *, VLC_CompileDomain, ( void ) LIBVLC_USED );
VLC_EXPORT( const char *, VLC_Compiler, ( void ) LIBVLC_USED );
VLC_EXPORT( const char *, VLC_Error, ( int ) LIBVLC_USED );
VLC_EXPORT( const char *, VLC_Changeset, ( void ) LIBVLC_USED );

/*****************************************************************************
 * Additional vlc stuff
 *****************************************************************************/
#include "vlc_messages.h"
#include "vlc_variables.h"
#include "vlc_objects.h"
#include "vlc_modules.h"
#include "vlc_main.h"
#include "vlc_configuration.h"

#if defined( WIN32 ) || defined( UNDER_CE )
#   define DIR_SEP_CHAR '\\'
#   define DIR_SEP "\\"
#   define PATH_SEP_CHAR ';'
#   define PATH_SEP ";"
#else
#   define DIR_SEP_CHAR '/'
#   define DIR_SEP "/"
#   define PATH_SEP_CHAR ':'
#   define PATH_SEP ":"
#endif

#define LICENSE_MSG \
  _("This program comes with NO WARRANTY, to the extent permitted by " \
    "law.\nYou may redistribute it under the terms of the GNU General " \
    "Public License;\nsee the file named COPYING for details.\n" \
    "Written by the VideoLAN team; see the AUTHORS file.\n")

#endif /* !VLC_COMMON_H */