Request: acknowledge png orientation flag

[marsh]

As shown in the sample below, it is possible for png images to contain an orientation flag. I think it would be a novel feature if MP supported this, helping users adopt the format more completely.

[XnTriq]

As one of the first programs XnView was able to play back PNG animatios.
I'd be more than happy about any step towards full support of all features the Portable Networks Graphics format has to offer, including the XMP orientation flag.

[xnview]

Please check XnViewMP 0.30

[marsh]

Thank you for the new png support! Images are now rotated.