diff options
Diffstat (limited to 'libmpdvdkit2/libdvdcss.c')
| -rw-r--r-- | libmpdvdkit2/libdvdcss.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libmpdvdkit2/libdvdcss.c b/libmpdvdkit2/libdvdcss.c index 946d916530..0f04573576 100644 --- a/libmpdvdkit2/libdvdcss.c +++ b/libmpdvdkit2/libdvdcss.c @@ -117,6 +117,8 @@ */ char * dvdcss_interface_2 = VERSION; +char * dvdcss_cache_dir = NULL; + /** * \brief Open a DVD device or directory and return a dvdcss instance. * @@ -164,6 +166,7 @@ extern dvdcss_t dvdcss_open ( char *psz_target ) dvdcss->i_method = DVDCSS_METHOD_KEY; dvdcss->b_debug = 0; dvdcss->b_errors = 0; + dvdcss->psz_cache = NULL; /* * Find verbosity from DVDCSS_VERBOSE environment variable @@ -208,6 +211,8 @@ extern dvdcss_t dvdcss_open ( char *psz_target ) } } + if(!dvdcss_cache_dir) dvdcss_cache_dir = getenv( "DVDCSS_CACHE" ); + /* * Open device */ @@ -261,6 +266,46 @@ extern dvdcss_t dvdcss_open ( char *psz_target ) } #endif + /* if the CACHE is enabled, extract some unique disc ID */ + if(dvdcss_cache_dir){ + char* disc_id=NULL; + char title_name[64]; + char sector[DVDCSS_BLOCK_SIZE]; + // 32768+40 -> disc title (32 uppercase chars) + // 32768+813 -> disc manufacturing date + serial no (16 digit number) + _dvdcss_seek( dvdcss, 32768/DVDCSS_BLOCK_SIZE); + if(_dvdcss_read( dvdcss, sector, 1) == 1){ + // check disc title first: + char* title_name=§or[40]; + int i=31; + while(i>=0 && title_name[i]<=32) i--; + title_name[i+1]=0; + if(strlen(title_name)>5){ + disc_id=strdup(title_name); + } else { + // use disc date+serial: + title_name=§or[813]; + title_name[16]=0; + for ( i=0;i<16;i++ ) + if ( ( title_name[i] < '0' )||( title_name[i] > '9' ) ){ + disc_id=malloc(16+4); + sprintf( disc_id,"%0.2X%0.2X%0.2X%0.2X%0.2X%0.2X%0.2X%0.2X",title_name[0],title_name[1],title_name[2],title_name[3],title_name[4],title_name[5],title_name[6],title_name[7] ); + break; + } + if(!disc_id) disc_id=strdup(title_name); + } + if(disc_id){ + // yeah, we have a disc name/id, let's set up cache path: + char* dir; + dvdcss->psz_cache = malloc(strlen(dvdcss_cache_dir)+strlen(disc_id)+4); + sprintf(dvdcss->psz_cache,"%s/%s",dvdcss_cache_dir,disc_id); + mkdir( dvdcss->psz_cache,493 ); + free(disc_id); + fprintf(stderr,"Using CSS Key-cache dir: %s\n",dvdcss->psz_cache); + } + } + } + return dvdcss; } |