it may and it may not
this shall depend on the public policy that is in a particular country in Shaw v DPP it was against the public policy at that time in UK but the position now is different same as marriage cases were only on a single man vs a single woman as per Hyde v Hyde but now same sex marriage are enforciable in Uk courts and are recognized to be valid marriages as those in Hyde v Hyde
so if a country prohibits pornography under its laws then it shall be a crime as to that context
In other ways, Pornography is an individual matter that one can not restict one
CURT(const. United Rep.Tz) says, kila mtu ana haki ya faragha. . . . so one has a right to privacy if one feels like watching porn you can not restrict this person
Human Rights activists, will be a the ground that one has a freedom to do what he wishes so long they shall not affect the neighbour
therefore on the context of pornography it shall depend on the matter before you