[Libreoffice-bugs] [Bug 62408] Cannot insert MP4 video files on Windows

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=62408

Aron Budea <baron at caesar.elte.hu> changed:

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--- Comment #40 from Aron Budea <baron at caesar.elte.hu> ---
Created attachment 138006
  --> https://bugs.documentfoundation.org/attachment.cgi?id=138006&action=edit
Sample ODP with embedded MP4

(In reply to Yousuf Philips (jay) from comment #39)
> This is a 16.5Kb file that has no embedded MP4 in it though it references
> the MP4 as content.xml as <draw:plugin xlink:href="../small.mp4" ...>
My bad, I accidentally linked the video in the presentation instead of
embedding it. Nevertheless, the case is still the same with a file that
actually has the video embedded, attaching that now.

> LO only supports playback through DirectShow filters, while "Windows Media
> Player supports the Media Foundation framework besides DirectShow"[1]. So if
> you dont have KLite or another codec pack installed that provides DirectShow
> filters for MP4, you wont be able to play MP4s.
The video can be played with Windows Media Player, it is handled by PowerPoint
perfectly fine, thus it is the very least an interoperability issue.

MS also claims the MP4 codecs can be used as DirectX Media Objects (DMO), and
DMOs can be used through DirectShow filters. I don't have the expertise to
verify it, but here are some pointers:
Using DMOs in DirectShow -
https://msdn.microsoft.com/en-us/library/windows/desktop/dd407273(v=vs.85).aspx
IDMOWrapperFilter interface -
https://msdn.microsoft.com/en-us/library/windows/desktop/dd406848(v=vs.85).aspx
Windows Media MPEG4 V1/V2 Decoder -
https://msdn.microsoft.com/en-us/library/windows/desktop/ff819502(v=vs.85).aspx
Windows Media MPEG-4 V3 Decoder -
https://msdn.microsoft.com/en-us/library/windows/desktop/ff819503(v=vs.85).aspx

The workaround of using K-Lite codec pack is very helpful, but that does not
warrant the closing of this bug report, as we don't ship those codecs.

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