Tools to inject Spherical Metadata into WebM/MKV

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Nick Alexeyev

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Sep 21, 2017, 4:15:51 AM9/21/17
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Guys, help, please!
Finally I found a solution how to inject Spherical Metadata V1 by using mkvextract and mkvpropedit.
But I absolutely have no idea about injection of V2.
How can I create a new master element, Projection and place it inside a video track's Video master element?

Help Tips66

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Nov 26, 2017, 11:33:38 AM11/26/17
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Dian Li

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Jan 17, 2018, 6:52:42 AM1/17/18
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Hello, Nick,

Now that you have mkvpropedit, you don't have to look into the Matroska structure. 

mkvpropedit --edit track:v1 --set projection-type=1 your.mkv
should be enough for equirectangular projection.

You can also set a default direction with projection-pose-*, as listed by mkvpropedit -l.

GUI version is available in MKVToolNix GUI's header editor: Video track - Video projection information.
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