Dear FIWARE coach,
we forward you a support request received from a CreatiFI applicant we are
not able to solve.
Please let us know if you need direct contact with the submitter.
Thanks.

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We are using Kurento to capture video from browsers - specifically Android
phone based browser - to avoid the users having to download and install the
VBOT native video recorder app.

We have installed Kurento Media Server on our server - the reason is that
we are uploading the recorded videos further to our VBOT pipeline. We
needed to keep our middleware and Kurento installed on the same server to
be able to push the video file to our storage (MS Azure).

After installation everything was working great but after a day, without
any further changes made to the code, we have encountered a strange issue
with files generated by a recorder.

Basically, files saved by kurento recorder javascript app are corrupted
(empty) and running

ffmpeg -i /tmp/video.mp4

returns:

/tmp/video.mp4: Invalid data found when processing input

JS Client code: https://gist.github.com/p-grzelczak/236f1e8d9e10eca95fe2

What can be possibly wrong in here or how to even debug that?

I would really appreciate the help.

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[Created via e-mail received from: Andrea Maestrini <amaestrini@create-net.org>]