Transcoder Problem

Plex Media Server
1

Server Version#: 1.23.1.4528
Player Version#: Plex Web 4.56.4

I am running Ubuntu 20.04 on an i9-9900k with Plex running inside a Docker container. I’ve passed through the iGPU (UHD 630) and it works fine on 1080p transcodes.

I am trying to transcode a 4k HEVC 10bit HDR ~20mbps bitrate.
Ffmpeg analysis of the file reports this:
Stream #0:0(eng): Video: hevc (Main 10) (dvhe / 0x65687664), yuv420p10le(pc), 3840x2160 [SAR 1:1 DAR 16:9], 17957 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 23.98 tbc (default)
Metadata:
creation_time : 2021-03-18T14:44:14.000000Z
encoder : DOVI Coding

When I try to transcode it down to any other quality, I keep getting the following errors in the log files:

ERROR - [Transcoder] Error while decoding stream #0:0: Invalid data found when processing input
ERROR - [Transcoder] [hevc @ 0x7f25a28c6240] PPS id out of range: 0

These errors are spammed until the transcoder exits and goes to software transcoding.

Anyone experienced similar issues? I am open to any suggestions

2

Does this occur with other HEVC files (with / without DOVI) ?

Can you provide the XML and the DEBUG logs ZIP (captured as you start & play for 20 seconds) ?

3

The problem ended up being the DOVI coding. I tried another similar specifications file without DOVI coding and it was running without any problems.

Also tried using a Quadro P2200 and it was still failing with the same problem. So it must be plex’s transcoder not liking the DOVI coding

4

Did you try another file file WITH DOVI ?

The first part of that is to determine if the specific file has an issue or not.