Fix rendition of MOV video

When uploading a MOV video on https://arender.io/demo (see attached file), the spinner at the bottom left turns for awhile then stops and nothing is rendered.

When testing on https://nxdev-qa01.beta.nuxeocloud.com/nuxeo/ui/#!/browse/default-domain/workspaces/ARender%20release/Videos/File10_with_part4.mov?p=arender, the following message is displayed twice:

Then it displays the following error message:

See what happens in our environment here: vokoscreen-2020-08-10_17-12-28.mp4