[MPlayer-dev-eng] dvdauth.c file patch

[me andi]

Hi!

i noticed that when playing an encrypted vob (i.e from hard disk), without 
authenticating the DVD drive (dvdauth.c) one runs into trouble.
In order to descramble the vob data, a suitable title key is required, which 
can be set by the -dvdkey option. I tried this:

mplayer -dvdkey <SUITABLE_KEY> <SOME_VOB_FILE_ON_HARDDISK>

which resulted in a segmentation fault. The problem is that the csslib which 
is used for descrambling, is only loaded when the option -dvdauth has been 
given. When the -dvdauth option is ommited, several function pointers such 
as dvdauth.c:dl_CSSDescramble are left uninitialized. In order to initialize 
the pointers properly i created a function dvdauth.c:openCsslib() which 
contains the libary load code from dvdauth.c:dvd_auth(). openCsslib() is now 
called from both dvd_auth() AND dvd_import_key(). I've attached the new 
dvdauth file.

p.s: I don't know if loading the library twice as a result of using
     -dvdauth AND -dvdkey is a problem. Also i'm not sure if my quick
     patch is OK but it worked for me.

greetz S.Post


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