Since our upgrade to confluence 6.1.2 from 6.0.2 mutimedia content such as mp4s do not work.
The following error is displayed on the page:
Error rendering macro 'multimedia' : com.atlassian.renderer.v2.macro.MacroException: Unable to display content of type '.mp4'
We have tried re-adding the content by dragging the file onto the page. It seems to use the view-file macro instead of the multimedia macro now. The problem with the view-file approach is that it does not preview the video content and uses need to click the file to view it.
<p>
<ac:structured-macro ac:macro-id="76b09eae-0897-4ae8-9df3-62d32fea10d6" ac:name="view-file" ac:schema-version="1">
<ac:parameter ac:name="name">
<ri:attachment ri:filename="Pinocchio-Marionette.mp4"/>
</ac:parameter>
<ac:parameter ac:name="height">250</ac:parameter>
</ac:structured-macro>
</p>
<p>
<br/>
</p>
<p>
<ac:structured-macro ac:macro-id="dc1ea319-a014-4ceb-bceb-d4e16439a94d" ac:name="multimedia" ac:schema-version="1">
<ac:parameter ac:name="name">
<ri:attachment ri:filename="Pinocchio-Marionette.mp4"/>
</ac:parameter>
<ac:parameter ac:name="autostart">true</ac:parameter>
</ac:structured-macro>
</p>
<p>
<br/>
</p>

We have lots of content that did use the mutlimedia macro and we require it to work.