media rate not parsed correctly.
last 2 bytes are [ignored](https://github.com/axiomatic-systems/Bento4/blob/174b948be29b69009b235ae0aa92884d05bcea49/Source/C%2B%2B/Core/Ap4ElstAtom.cpp#L97)
if media rate is actually 1.5 it got parsed as 1
media rate in elst not parsed correctly
This is a GitHub Issue
repo:Bento4
owner:axiomatic-systems
Title : media rate in elst not parsed correctly
Issue date:

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media rate not parsed correctly.
last 2 bytes are [ignored](https://github.com/axiomatic-systems/Bento4/blob/174b948be29b69009b235ae0aa92884d05bcea49/Source/C%2B%2B/Core/Ap4ElstAtom.cpp#L97)
if media rate is actually 1.5 it got parsed as 1
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