Camera metadata from Sony A7S not exported by mov/mp4 demuxer

[rmk]

The sample from ticket 5645 contains xml metadata in the "meta" atom which is the last atom of the file. Contained data is:

<?xml version="1.0" encoding="UTF-8"?>
<NonRealTimeMeta xmlns="urn:schemas-professionalDisc:nonRealTimeMeta:ver.2.00" xmlns:lib="urn:schemas-professionalDisc:lib:ver.2.00" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" lastUpdate="2016-03-05T14:17:25Z">
	<TargetMaterial umidRef="060A2B340101010501010D431300000006C66D98527405C0FCDBB3FFFE513305"/>
	<Duration value="252"/>
	<LtcChangeTable tcFps="25" halfStep="false">
		<LtcChange frameCount="0" value="19060600" status="increment"/>
		<LtcChange frameCount="251" value="20160600" status="end"/>
	</LtcChangeTable>
	<CreationDate value="2016-03-05T14:17:25Z"/>
	<Device manufacturer="Sony" modelName="ILCE-7S" serialNo="4294967295"/>
	<RecordingMode type="normal" cacheRec="false"/>
</NonRealTimeMeta>

This is currently not exported as a metadata tag by the mov demuxer.