CPU overloaded while playing video from Synology RS816

[emingy 2]

Hi,
I installed Emby 4.6.7.0 on a Synology RS816. System specs are:

• DSM 6.2.4-25556 Update 2
• Marvell Armada 385 88F6820 @ 1,8 GHz
• 1 GB RAM

I'm only connecting locally to the NAS (Gigabit LAN) and I'm only connecting via Browser (e.g. Opera)

I was pretty thrilled by the options Emby offers until I tried to play a movie. Playback tends to stutter, and CPU load on the NAS will shoot up to 90-99%.

I also booked Emby Premiere to find out if Hardware transcoding might fix this issue, but it didn't.

These are my transcoding settings - pretty default as far as I remember:

This is what Stats for Nerds says:

While putting together this information, I realize that an overwhelming part of my video collection is in .avi. A few are .mp4 and play just fine with a CPU load below 10%.

Is this a general issue with .avi files? And - if so - is anyone aware of a tool to batch convert .avi to a more digestible format?

 

Thanks in advance!
Lennart

ffmpeg-transcode-31a600c2-1c0c-4ef1-87e0-74a671677f9e_1.txt

Edited February 2, 2022 by emingy
added transcode log.

[emingy 2]

It seems possible to batch convert avi to m4v via Handbrake. Those m4v files play without problems.

So... if not anyone comes up with a more straightforward solution, I'll start transcoding my collection in this way.

[Carlo 4561]

Hi, I'd suggest taking a look at this great tool:
https://sourceforge.net/projects/ffmpeg-batch/

Take you time to learn how to use it and you'll never use another conversion program again.
You can copy or convert tracks, drop tracks, add tracks, make two channel aac audio from 5.1 or 7.1.

As for video, if you have a GPU on your PC you should be able to use that to speed up conversions quite a bit.

Carlo

[emingy 2]

Thanks cayars!

Indeed, I have a CAD workstation with a recent GPU around and was surprised Handbrake isn't making use of it. I'll definitely try if ffmpeg does better.

[Luke 42078]

Let us know how you get on. Thanks.

[emingy 2]

Thanks Luke.

I hade some issues getting ffmpeg to work, but for the time being my problem is happily solved with Handbrake.