/*****************************************************************************
* dvd.c : DVD input module for vlc
*****************************************************************************
- * Copyright (C) 2000 VideoLAN
+ * Copyright (C) 2000-2001 VideoLAN
+ * $Id: dvd.c,v 1.25 2002/03/05 18:17:52 stef Exp $
*
- * Authors:
+ * Authors: Samuel Hocevar <sam@zoy.org>
*
* 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
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
-#define MODULE_NAME dvd
-
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include "defs.h"
-
#include <stdlib.h> /* malloc(), free() */
#include <string.h> /* strdup() */
-#include "config.h"
-#include "common.h" /* boolean_t, byte_t */
-#include "threads.h"
-#include "mtime.h"
+#include <videolan/vlc.h>
-#include "modules.h"
-#include "modules_inner.h"
+#ifdef GOD_DAMN_DMCA
+# include <dlfcn.h>
+# include "dummy_dvdcss.h"
+#endif
/*****************************************************************************
- * Build configuration tree.
+ * Capabilities defined in the other files.
*****************************************************************************/
-MODULE_CONFIG_START
-ADD_WINDOW( "Configuration for DVD module" )
- ADD_COMMENT( "foobar !" )
-MODULE_CONFIG_END
+void _M( access_getfunctions)( function_list_t * p_function_list );
+void _M( demux_getfunctions)( function_list_t * p_function_list );
/*****************************************************************************
- * Capabilities defined in the other files.
+ * Local prototypes.
*****************************************************************************/
-extern void input_getfunctions( function_list_t * p_function_list );
+#ifdef GOD_DAMN_DMCA
+static void *p_libdvdcss;
+static void ProbeLibDVDCSS ( void );
+static void UnprobeLibDVDCSS( void );
+#endif
/*****************************************************************************
- * InitModule: get the module structure and configuration.
- *****************************************************************************
- * We have to fill psz_name, psz_longname and psz_version. These variables
- * will be strdup()ed later by the main application because the module can
- * be unloaded later to save memory, and we want to be able to access this
- * data even after the module has been unloaded.
+ * Build configuration tree.
*****************************************************************************/
-int InitModule( module_t * p_module )
-{
- p_module->psz_name = MODULE_STRING;
- p_module->psz_longname = "DVD input module";
- p_module->psz_version = VERSION;
-
- p_module->i_capabilities = MODULE_CAPABILITY_NULL
- | MODULE_CAPABILITY_INPUT;
-
- return( 0 );
-}
-
+MODULE_CONFIG_START
+ADD_CATEGORY_HINT( "[dvd:][device][@raw_device][@[title][,[chapter][,angle]]]", NULL )
+MODULE_CONFIG_STOP
+
+MODULE_INIT_START
+ ADD_CAPABILITY( DEMUX, 200 )
+#ifndef WIN32
+# ifdef GOD_DAMN_DMCA
+ SET_DESCRIPTION( "DVD input module, uses libdvdcss if present" )
+ ADD_CAPABILITY( ACCESS, 90 )
+# else
+ SET_DESCRIPTION( "DVD input module, linked with libdvdcss" )
+ ADD_CAPABILITY( ACCESS, 100 )
+# endif
+#else
+ SET_DESCRIPTION( "DVD input module" )
+ ADD_CAPABILITY( ACCESS, 0 )
+#endif
+ ADD_SHORTCUT( "dvd" )
+MODULE_INIT_STOP
+
+MODULE_ACTIVATE_START
+ _M( access_getfunctions)( &p_module->p_functions->access );
+ _M( demux_getfunctions)( &p_module->p_functions->demux );
+#ifdef GOD_DAMN_DMCA
+ ProbeLibDVDCSS();
+#endif
+MODULE_ACTIVATE_STOP
+
+MODULE_DEACTIVATE_START
+#ifdef GOD_DAMN_DMCA
+ UnprobeLibDVDCSS();
+#endif
+MODULE_DEACTIVATE_STOP
+
+
+/* Following functions are local */
+
+#ifdef GOD_DAMN_DMCA
/*****************************************************************************
- * ActivateModule: set the module to an usable state.
+ * ProbeLibDVDCSS: look for a libdvdcss object.
*****************************************************************************
- * This function fills the capability functions and the configuration
- * structure. Once ActivateModule() has been called, the i_usage can
- * be set to 0 and calls to NeedModule() be made to increment it. To unload
- * the module, one has to wait until i_usage == 0 and call DeactivateModule().
+ * This functions looks for libdvdcss, using dlopen(), and fills function
+ * pointers with what it finds. On failure, uses the dummy libdvdcss
+ * replacement provided by vlc.
*****************************************************************************/
-int ActivateModule( module_t * p_module )
+static void ProbeLibDVDCSS( void )
{
- p_module->p_functions = malloc( sizeof( module_functions_t ) );
- if( p_module->p_functions == NULL )
+ char *pp_filelist[4] = { "libdvdcss.so.1",
+ "./libdvdcss.so.1",
+ "./lib/libdvdcss.so.1",
+ NULL };
+ char **pp_file = pp_filelist;
+
+ /* Try to open the dynamic object */
+ do
+ {
+ p_libdvdcss = dlopen( *pp_file, RTLD_LAZY );
+ if( p_libdvdcss != NULL )
+ {
+ intf_WarnMsg( 2, "module: builtin module `dvd' found libdvdcss "
+ "in `%s'", *pp_file );
+ break;
+ }
+ pp_file++;
+
+ } while( *pp_file != NULL );
+
+ /* If libdvdcss.so was found, check that it's valid */
+ if( p_libdvdcss == NULL )
{
- return( -1 );
+ intf_ErrMsg( "dvd warning: libdvdcss.so.1 not present" );
+ }
+ else
+ {
+ ____dvdcss_open = dlsym( p_libdvdcss, "dvdcss_open" );
+ ____dvdcss_close = dlsym( p_libdvdcss, "dvdcss_close" );
+ ____dvdcss_title = dlsym( p_libdvdcss, "dvdcss_title" );
+ ____dvdcss_seek = dlsym( p_libdvdcss, "dvdcss_seek" );
+ ____dvdcss_read = dlsym( p_libdvdcss, "dvdcss_read" );
+ ____dvdcss_readv = dlsym( p_libdvdcss, "dvdcss_readv" );
+ ____dvdcss_error = dlsym( p_libdvdcss, "dvdcss_error" );
+
+ if( ____dvdcss_open == NULL || ____dvdcss_close == NULL
+ || ____dvdcss_title == NULL || ____dvdcss_seek == NULL
+ || ____dvdcss_read == NULL || ____dvdcss_readv == NULL
+ || ____dvdcss_error == NULL )
+ {
+ intf_ErrMsg( "dvd warning: missing symbols in libdvdcss.so.1, "
+ "this shouldn't happen !" );
+ dlclose( p_libdvdcss );
+ p_libdvdcss = NULL;
+ }
}
- input_getfunctions( &p_module->p_functions->input );
-
- p_module->p_config = p_config;
-
- return( 0 );
+ /* If libdvdcss was not found or was not valid, use the dummy
+ * replacement functions. */
+ if( p_libdvdcss == NULL )
+ {
+ intf_ErrMsg( "dvd warning: no valid libdvdcss found, "
+ "I will only play unencrypted DVDs" );
+ intf_ErrMsg( "dvd warning: get libdvdcss at "
+ "http://www.videolan.org/libdvdcss/" );
+
+ ____dvdcss_open = dummy_dvdcss_open;
+ ____dvdcss_close = dummy_dvdcss_close;
+ ____dvdcss_title = dummy_dvdcss_title;
+ ____dvdcss_seek = dummy_dvdcss_seek;
+ ____dvdcss_read = dummy_dvdcss_read;
+ ____dvdcss_readv = dummy_dvdcss_readv;
+ ____dvdcss_error = dummy_dvdcss_error;
+ }
}
/*****************************************************************************
- * DeactivateModule: make sure the module can be unloaded.
- *****************************************************************************
- * This function must only be called when i_usage == 0. If it successfully
- * returns, i_usage can be set to -1 and the module unloaded. Be careful to
- * lock usage_lock during the whole process.
+ * UnprobeLibDVDCSS: free resources allocated by ProbeLibDVDCSS, if any.
*****************************************************************************/
-int DeactivateModule( module_t * p_module )
+static void UnprobeLibDVDCSS( void )
{
- free( p_module->p_functions );
-
- return( 0 );
+ if( p_libdvdcss != NULL )
+ {
+ dlclose( p_libdvdcss );
+ p_libdvdcss = NULL;
+ }
}
+#endif
projects / vlc / blobdiff