libdvdcss/libdvdcss.h

   1 /*****************************************************************************
   2  * libdvdcss.h: private DVD reading library data
   3  *****************************************************************************
   4  * Copyright (C) 1998-2001 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Stéphane Borel <stef@via.ecp.fr>
   8  *          Sam Hocevar <sam@zoy.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with libdvdcss; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  *****************************************************************************/
  24
  25 struct iovec;
  26
  27 /*****************************************************************************
  28  * The libdvdcss structure
  29  *****************************************************************************/
  30 struct dvdcss_s
  31 {
  32     /* File descriptor */
  33     char * psz_device;
  34     int    i_fd;
  35     int    i_read_fd;
  36     int    i_pos;
  37
  38     /* File handling */
  39     int ( * pf_seek )  ( dvdcss_t, int );
  40     int ( * pf_read )  ( dvdcss_t, void *, int );
  41     int ( * pf_readv ) ( dvdcss_t, struct iovec *, int );
  42
  43     /* Decryption stuff */
  44     int          i_method;
  45     css_t        css;
  46     int          b_ioctls;
  47     int          b_scrambled;
  48     dvd_title_t *p_titles;
  49
  50     /* Key cache directory and pointer to the filename */
  51     char   psz_cachefile[PATH_MAX];
  52     char * psz_block;
  53
  54     /* Error management */
  55     char * psz_error;
  56     int    b_errors;
  57     int    b_debug;
  58
  59 #ifdef WIN32
  60     int    b_file;
  61     char * p_readv_buffer;
  62     int    i_readv_buf_size;
  63 #endif
  64
  65 #if !defined(WIN32) && !defined(SYS_OS2)
  66     int    i_raw_fd;
  67 #endif
  68 };
  69
  70 /*****************************************************************************
  71  * libdvdcss method: used like init flags
  72  *****************************************************************************/
  73 #define DVDCSS_METHOD_KEY        0
  74 #define DVDCSS_METHOD_DISC       1
  75 #define DVDCSS_METHOD_TITLE      2
  76
  77 /*****************************************************************************
  78  * Functions used across the library
  79  *****************************************************************************/
  80 #define print_error(dvdcss,msg) _print_error(dvdcss,msg)
  81 #if defined( _MSC_VER )
  82 #include <stdarg.h>
  83 __forceinline void print_debug(dvdcss_t dvdcss, const char *msg,...)
  84 {
  85         va_list args;
  86
  87     fprintf( stderr, "libdvdcss debug: " );
  88         va_start( args, msg );
  89     vfprintf( stderr, msg, args );
  90         va_end( args );
  91     fprintf( stderr, "\n" );
  92 }
  93 #else
  94 #define print_debug(dvdcss,msg,args...) \
  95     if( dvdcss->b_debug ) \
  96     { \
  97         fprintf( stderr, "libdvdcss debug: " ); \
  98         fprintf( stderr, msg, ##args ); \
  99         fprintf( stderr, "\n" ); \
 100     }
 101 #endif
 102
 103 void _print_error ( dvdcss_t, char * );
 104