core: Handle the case where frame rate is set to 0 #18419
Merged
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In the current builds, any SWF file with a frame rate set to 0 in its header fails to run. This actually makes some sense, but Flash disagrees.
This PR fixes this issue and makes the following SWF work:
telepoche040110.swf
, created with the third-party tool Print2Flash.I also made a few changes to the
Stage.frameRate
property in AVM2 to align with Flash's behavior.