In the midterm, it probably makes more sense to update MorphOS mplayer with some proper https:// support ...
Easier said than donut. So far only Odyssey has proper https support and that has come at a cost in exe size.
OpenSSL linklibs are mega complicated for porting. Best solution would be to have a shared library like amissl to avoid all of it, but nobody seems able to do so and keep it up to date.