Transcoding no longer working with Windows

THANK YOU! I’ve spent the last 4 hours on a new build trying to figure out why hardware transcoding wasn’t working. I downgraded to 1.41.3 and now hardware transcoding works.

Does this build happen to address the issue?

Installed this build - now running Version 1.41.6.9530

Same transcoding issues.

wow! Gosh! I spent like 2 hours trying to figure out why hardware transcoding wasn’t working. Rolled back to 1.41.3 and it’s working again!

Windows 11
UHD Graphics 630

how about this build?

2 Likes

Tested and hardware transcoding is working in this build!

Yup HW transcoding working with that build!

Working for me as well!

Any insight you are able to share in what went wrong? Just out of curiosity.

1 Like

I’m curious about this too! It almost seemed like the transcoder was misconfigured? Based on the error: “The hardware pixel format ‘yuv420p’ is not supported by the device type ‘QSV’”

Almost like it was trying to use a format that wasn’t supported by QuickSync

That error message was actually a red herring. Certain operations require a pool of extra frames (AC1/mpeg2 decoders, subtitle overlay, ect). Older iGPUs did not have enough on board memory for what I sized this pool. I originally sized this pool for the worst case scenarios and then found a recommended size buried in the documentation, both ended up being too big for 4k videos on these older iGPUs. I solved this by backporting the dynamic frame pool feature which was recently merged into upstream ffmpeg so this pool will grow as needed. while there may still be issues in extreme cases but this SHOULD be sufficient for 99.99% of all cases.

8 Likes

Are you old enough to have played Zork/Adventure? “You are in a maze of twisty passages, all alike.”

2 Likes

Wow, can’t imagine the loops you had to go through to figure it out! But explains why it seemed only some people had the problem but not others! Thank you very much! Now my server is back to efficient transcoding!

1 Like

Just wanted to add that thus fixed my issue too on Windows using 8700k iGPU. How will this work moving forward in terms of updates? Do those affected just stay on this version forever?

I’m hoping this fix will make it into 1.41.6

3 Likes

This does not work on the arc igpu on my intel ultra 5 125H.

This build worked for me too! I spent at least 4 hours trying to tinker with everything. Thank you so much.

Why would it? This is a fix for older processors, not new. Helps to read.

I have been having similar problems it seems to be a thing with full windowed mode or open application that are full screen mode try f11 key to get the picture full frame no borders I think its similar to when your playing a game in windowed mode and not full screen the GPU is having a hard time telling what it should do. its a guess but I downloaded windows HTPC app and i set it to all different setting and it finally started to transcode everything. have thing problem on both my plex servers when using any application other than plex HTPC app

This fixed my issue as well. That was haunting me.

1.41.6.9606 dropped on the Beta channel. iGPU HW transcoding working again on my 8700k.

1 Like