Hardware transcoding on DS418play

[acass]

I have a Synology DS418play with a INTEL Celeron J3355 win Intel QuickSync. I have updated to DSM7 and now my post processing script does not work.

The code I am using is

/volume1/@appstore/ffmpeg6/bin/ffmpeg -i "$1" -threads 0 -load_plugin hevc_hw -c:v hevc_qsv -preset 5 -global_quality 26 "${1%.ts}.mkv"

I think it is a permission issue but I don’t know how to fix it. If I SSH into my server and run

sudo /volume1/@appstore/ffmpeg6/bin/ffmpeg -I "TESTFILE.ts" -threads 0 -load_plugin hevc_hw -c:v hevc_qsv -preset 5 -global_quality 26 "TESTCONVERT.mkv"

it works and I don’t get any errors.
Is there a way to run the post processing script with root access? Or give Plex permission to run this?

[ChuckPa]

@acass

-threads 0 -load_plugin hevc_hw -c:v hevc_qsv

The J3355 CPU does not have HEVC HDR capability. You need the J3455 CPU for HEVC HDR

https://ark.intel.com/content/www/us/en/ark/products/95597/intel-celeron-processor-j3355-2m-cache-up-to-2-5-ghz.html

As ‘root’ you’ll never get errors.

On DSM 7, the username to use is PlexMediaServer.
(DSM 7 forced the change)

Be advised, given you’re not using Plex Transcoder, you are on your own here.