DS218+ Slow Transcoding

Channels DVR Server Troubleshooting
#1

I'm having trouble watching recordings remotely without a lot of stopping and starting - on the face of it, it looks like a transcoding issue because it's doing it at less than 1x on the new one and I don't trust the x old transcoder as it's still saying less FPS than would be needed.

Any ideas? Any setting to change/try?

New Transcoder
Running at 1mbps: 1h20m48s @ 0.72x (20.25fps )

Old Transcoder
Running: 1h20m57s @ 481x (19.42fps)

Version
2019.09.27.1912

OS
Synology DS218+
Linux
(kernel: 4.4.59+)

CPU
2 cores / Intel(R) Celeron(R) CPU J3355 @ 2.00GHz

load averages: 1.35 1.28 1.11

RAM
5.65 GB
91.1% free

#2

Did you try setting the De-Interlace option to hardware I had the same problem on my Synology and that fixed it.

1 Like
#3

Iā€™m having the same issue on my DS718+.

#4

Yes the deinterlacer must be set to Hardware on these devices.

1 Like
#5

I guess I have not been following this. I have mainly 1 remote user that I have setup to use "original" streaming in her client. She has not been complaining with the new versions of the DVR.

My remote access DVR is the DS1019+ (I also have a local only DS918+). I also have the CACHE Memory add on.

Under Transcoder I have the following:

Transcoder = Hardware
Deinterlacer = Linear
Adaptive Streaming = ON

Should I turn OFF Adaptive Streaming? Again, I prefer NO Transcoding?
Also, should I change Deinterlacer to Hardware just in case?

#6

I'm updating the next build to default to hardware deinterlacing. This is required on Synology for good performance.

@d21mike If your clients are set to Original then you're not using transcoding so the setting does not matter.

1 Like
#7

That did the trick!

#8

I just installed 2019.09.30.1825 and it did not change the setting. Maybe you mean the next one after this one.

#9

I think what was meant was that the default deinterlace option for new installs would be hardware; current/existing installations will retain their present settings.

(I would hate to have a software update change my existing settings without notice.)

#10

Understand. Good point.