A new version of mediainfo is out, please bump. For now, the tarball is only available on mediaarea.net, not on SourceForge. So you need to change $SRC_URI accordingly. Also, could you please add epatch_user to the ebuild, so people can change the default view in the GUI? I think a lot of people prefer HTML view to Easy view, this would save them a few clicks. According to the patch here (http://sourceforge.net/p/mediainfo/feature-requests/452/attachment/default-to-html-view.patch) it's possible to change the default view by modifying two lines in GUI_Main.cpp.
0.7.80 added to the tree.