Improve the dialog for subtitle encodings with iconv.

Add only available encodings from the full list to avoid
possible confusion.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36657 b3059339-0415-0410-9bf9-f77b7e298cf2
Improve the dialog for subtitle encodings with iconv.

Add MSGTR_PREFERENCES_DefaultEnc.

This allows more proper translation.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36658 b3059339-0415-0410-9bf9-f77b7e298cf2
Improve the dialog for subtitle encodings with iconv.

Allow a (preset) encoding that is not part of the list
of available encodings.

Insert this encoding into the selection list.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36659 b3059339-0415-0410-9bf9-f77b7e298cf2
Improve the dialog for subtitle encodings with iconv.

Disable the check buttons for options 'sub_utf8' and 'sub_unicode'
in case option 'sub_cp' is active.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36660 b3059339-0415-0410-9bf9-f77b7e298cf2
Improve the dialog for subtitle encodings.

Disable the check button for option 'sub_unicode'
in case option 'sub_utf8' is active.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36661 b3059339-0415-0410-9bf9-f77b7e298cf2