Actually photographing or filming prisoners has always been prohibited:

The Third Geneva Convention requires that prisoners of war “must at all times be protected, particularly against acts of violence or intimidation and against insults and public curiosity.” It prohibits embarrassment and humiliation. Technically, not all violations of the Geneva Conventions are “war crimes” – that determination is reserved for serious breaches of the treaty.





>>>The reason I would be surprised at any torture by the Iranians is because it would be a monumentally stupid thing for them to do. Capturing a few soldiers and parading them and then releasing them is just so much political grandstanding BS. But to actually torture them would be stupid beyond belief. Well we can only hope.
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>>By some standards humiliating them on [world] TV constitutes as torture. Remember, "torture is torture" as someone said.
>
>A tautology that makes the definition so broad that now for sure they can be considered to have been tortured.