Ffmpeg QSV HEVC error on 1 desktop but not the other

General Support / Questions Hardware Encoding
#1

I’ve been playing around with ffmpeg trying to get the proper parameters for the best quality using intel qsv. One desktop (Intel UHD 630 version 27.20.100.9168) I get the following error:

[hevc_qsv @ 0000018e9a302e00] Could not load the requested plugin '6fadc791a0c2eb479ab6dcd5ea9da347': specified object was not found (-9)
[hevc_qsv @ 0000018e9a302e00] Error loading plugins
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

But works fine on another desktop (Intel Iris Pro 580 version 27.20.100.8681). I am using the included ffmpeg but am running the job manually via command prompt. Here is what I’m running:

ffmpeg.exe -hide_banner -threads 0 -hwaccel qsv -i D:\Temp\input.mp4 -vf yadif=0:-1:1,hqdn3d -vcodec hevc_qsv -preset slow -crf 26 -vsync 2 -map 0:v -sn -acodec copy -map 0:a -f matroska c:\Temp\output.mkv

Anyone know how to resolve this error?

#2

Your 630 driver/hardware may not support some of the parameters (e.g. hevc, vsync or a preset), try elimination to see which one it doesnt’ support.

#3

I stripped it down to the basics (see below) and am still getting the same error.

ffmpeg.exe -hide_banner -threads 0 -i D:\Temp\input.mp4 -vcodec hevc_qsv -map 0:v -acodec copy -map 0:a -f matroska c:\Temp\output.mkv

#5

Works great in handbrake.

2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11] CPU: Intel(R) Core(TM) i9-10900K CPU @ 3.70GHz
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]  - logical processor count: 20
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11] Intel Quick Sync Video support: yes
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]  - Intel Media SDK hardware: API 1.32 (minimum: 1.3)
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]  - Intel Media SDK software: API 1.19 (minimum: 1.3)
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]  - H.264 encoder: yes
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]     - preferred implementation: hardware (any) via D3D11
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]     - capabilities (hardware):  breftype icq+la+i+downs vsinfo opt1 opt2+mbbrc+extbrc+trellis+ib_adapt+nmpslice
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]     - capabilities (software):  bpyramid vsinfo opt1 opt2
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]  - H.265 encoder: yes (8bit: yes, 10bit: yes)
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]     - preferred implementation: hardware (any) via D3D11
2021-02-02T07:32:11 MCEBuddy.AppWrapper.IntelQuery --> [07:32:11]     - capabilities (hardware):  bpyramid icq vsinfo opt1
#6

It looks like you may be missing the -crf/-cq/bitrate parameter for the video.
Have you tried updating ffmpeg to a newer version and see if that helps since it’s working in handbrake.

#7

I did try -crf. The last one was the most stripped down I could do in order to test @RBoy’s suggestion. I’ll try the latest version of ffmpeg. I just thought it strange that one desktop worked and another one didn’t.