png - What are the differences between APNG and MNG? -


i know apng extension of png, while mng more of own format (albeit developed original png developers). mng barely supported in browser @ all, while apng has native support in firefox (for various backward compatibility- , decoding-related reasons, seems).

except of these behind-the-scenes things, differences between apng , mng? 1 have features other doesn't (for example, storing parts modified instead of whole frames)? 1 have better performance or file size other?

apng can create new frame replacing entire image or overlaying or blending smaller image on part of it. display "pong" game you'd need new image of ball in each different location. apng has same capabilities animated gif, allowing 24bit rgb , 8-bit alpha.

mng can that, plus can retrieve image defined in datastream , place on previous frame in new location. display "pong" game you'd need transmit 1 image of ball , use sprite.

much more detail available in specifications:

apng: (https://wiki.mozilla.org/apng_specification‎)

mng: (http://www.libpng.org/pub/mng/spec/mng-lc.html)


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