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Re: [GMG-Devel] Possible fix for gst-stream-error-quark: This file is in

From: Christopher Allan Webber
Subject: Re: [GMG-Devel] Possible fix for gst-stream-error-quark: This file is incomplete and cannot be played
Date: Fri, 11 Dec 2015 10:39:03 -0600

ayleph writes:

> I've been plagued by a particular video processing issue since we
> switched to gstreamer-1.x in. Some files (specifically mp4 files) which
> processed fine using the gstreamer0.10 code from earlier GMG versions
> now failed to process. A user of my instance brought that up again last
> week, and I was able to spend some time debugging the problem. I think
> I've come up with a simple solution. If anyone else has experienced this
> issue, try the change I added to the trac ticket [1] and let me know if
> it helps. I've optimistically added a v0.8.1 milestone, but it would be
> nice if someone else could try it before then.

Great!  Yes, it would be nice to get review from others.

> On a related note, I've discovered that every sniffed media file gets
> copied to a temporary file in /tmp. I'm curious why this is necessary.
> If someone uploads a 1GB file to my instance, does GMG really need to
> copy that "file-like object" to a temp file to sniff the file type
> before deleting the temp file? And if it's really necessary, could we
> somehow tie this into the normal workbench stuff so that all of my GMG
> files are contained in expected locations, instead of files being
> created in /tmp? That way I can size my /var/lib/mediagoblin partition
> appropriately and not have to worry about files eating up space in /tmp.
> Or am I misreading the code?
> [1]

Yes I've never been happy with the /tmp/ file sniffing.  Using a
workbench would be better, because workbenches have better built-in
structure for cleanup.

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