Previews not being created for MP4 originals (but are created for other formats)

Razuna v2 Legacy Self-Hosted
1

We’re testing a new self-hosted installion on AWS and it’s working well except for one odd problem. MP4 video file previews and additional renditions are created for virtually any file type EXCEPT (oddly enough) original mp4 files. I don’t think this is by design (or maybe it is?). But the original mp4 files are hi-rez, high data rate files so they’re not suitable for streaming playback or preview.

We’re also testing ResourceSpace at the moment and in that system you can turn off preview creation for mp4 and let the original be your preview…but, it can be turned on for large mp4s not suitable for online playback.

So I’m wondering if this is by design in Razuna or if there’s an issue somewhere. Even if I try to create an mp4 rendition (after upload) of an mp4 original, no file is created. If I try to create an WMV or MOV file (etc) of the original mp4, it works fine. I’ve tested mp4 creation of original mp4s on the command line and it works fine calling ffmpeg from there (am able to create mp4s from mp4 originals).

I hope this makes sense, but would be nice to figure out since we have a lot of mp4 high-rez originals that need preview capability upon upload.

Chris Blair
Magnetic Image, Inc.
Evansville, IN

2

To add some additional info. I recompiled ffmpeg following the instructions from the Razuna site. Same problem…and I also cannot create mp4 previews of .MTS files. I added mts to the file mime types based on the setup and mime type I added in ResourceSpace (which got it working there)…but still no joy. So still have the original problem, plus cannot create mp4s of MTS files.

3

You can create as many renditions and versions of an existing mp4 files
into another mp4 as you like. This might be an issue on the AWS and mp4.
Can you look Administration/Logs/Errors and see any errors related to mp4?
Best is to clear all errors (if there are any) and try a rendition and
check for errors. Thanks.