VAAPI vs. QSV

[jellyfin-archive]

VAAPI vs. QSV

[anthonylavado]

For reference (because this has been long lost in the main repo), here are Emby's flags:
https://git.archlinux.org/svntogit/community.git/tree/trunk/PKGBUILD?h=packages/emby-server#n75

[cromefire]

Well if there's docker on that system you could automatically build it 😂

[EraYaN]

Your qsv log is a plain software encode. Please provide the actual run with qsv h264_qsv. It'll look like this: https://trac.ffmpeg.org/wiki/Hardware/QuickSync

[Artiume]

@EraYaN i believe he did try QSV, we were discussing it in the chat. Do you know any reason why it wouldn't use libmfx? I can't test vaapi/qsv so I can't verify the functionality of the stream builder. Have you ever used qsv?

[cromefire]

I definitely configured QSV so either there are drivers missing or JF has a problem with it

[Artiume]

Notes:
Enabling QSV with ffmpeg
https://software.intel.com/en-us/articles/quick-start-on-integrating-ffmpeg-libraries

Dockerfile for compiling ffmpeg,
https://github.com/jellyfin/jellyfin-ffmpeg/blob/39f183cc303e9c8542c9905e31e733490f999b2f/docker/Dockerfile#L348-L379

Person troubleshooting their QSV.
https://software.intel.com/en-us/forums/media/topic/803933

General Info
https://software.intel.com/sites/default/files/media_server_studio_getting_started_guide.pdf

From the looks of it --enable-nonfree isn't there. Based on licensing, can we add that or would that cause trouble for us?

[cromefire]

No that makes it unredistributable
(It also shows a big warning telling you that then)

[cromefire]

The only thing you could theoretically do is build it on that device automatically

[cromefire]

I don't what to build my own ffmpeg right now so I think I guess we can close this pretty much

[Artiume]

https://www.ffmpeg.org/legal.html

I can add more notes I want to parse if you want

[Artiume]

NDI added nonfree to their FFmpeg build and all hell broke lose. Looks like it was because their overall license was the issue, not the nonfree itself.
https://trac.ffmpeg.org/ticket/7589?cversion=0&cnum_hist=11

Emby thread with compiling FFmpeg locally.
https://emby.media/community/index.php?/topic/10723-gpu-transcoding-intel-quicksync-and-nvidia-nvenc/page-30

Unofficial FFMPEG 'How not to get into Hall of Shame' FAQ for legalities
https://forum.doom9.org/showthread.php?t=154477

More instructions on QSV and Linux
https://www.intel.de/content/dam/www/public/emea/xe/en/documents/white-papers/quicksync-video-ffmpeg-install-valid.pdf
3.Configure FFmpeg with “--enable –libmfx –enable-nonfree”, build, and install.This requires copying include files to /opt/intel/mediasdk/include/mfx andadding a libmfx.pc file. More details below.
We also don't enable libmfx by default. I need to dig into what the nonfree enables. As long as it doesn't allow for libs we can't use, we should be good to go, but licensing isn't my forte. I'm finding mostly results about people violating GPL, not for violating with -nonfree in a GPL license.

[Artiume]

Thanks. So for HWA we're missing --enable-nvdec --enable-nvenc --enable-libmfx. Not sure if there's any other flags we should be including.

I've seen reports of people using NVENC so I want to check their reddit post and see if they did anything special.

Edit:
https://www.reddit.com/r/jellyfin/comments/amuyba/nvenc_nvdec_working_in_jellyfin_on_ubuntu_server/
I'm happy to report that hardware transcoding with NVIDIA GPUs under Ubuntu Server 18.04 works in an out-of-the-box config on Jellyfin!
hmmm....

[cromefire]

Just be sure to not make it unredistributable by accident

[Artiume]

Don't worry, we won't make changes without thorough research and approvals. It appears that nonfree isn't needed based on other builds, but needs testing to be verified.

Good breakdown.
http://www.ffmpeg-archive.org/What-does-enable-gpl-and-enable-nonfree-do-td2239371.html

Another project tackling the nonfree issue.
SynoCommunity/spksrc#3564

nonfree build example
https://gist.github.com/silverkorn/db5451f836e2bf9dea2a8358475eb5f4

[JustAMan]

Shameless plug of ffmpeg build: https://github.com/JustAMan/ffmpeg-standalone-build

[cromefire]

The nonfree warning is commented out on your repo, which is not good

[Artiume]

So you can provide build instructions, you can't provide built binaries. The licenses are weird about that

[cromefire]

Oh sorry it's just it's another place

[Artiume]

jellyfin/jellyfin#2261 (comment)

Can you make sure these are installed?

[cromefire]

E: Unable to locate package intel-media-va-driver-non-free

Ubuntu 18.04

[cromefire]

Won't work for me anyway my processor is older than Broadwell