NVDEC H.265 decoding not working (but CUVID does)

[Luke 42077]

11 hours ago, ctaranto said:

I recently updated to 4.7.5 and tried the included stable packages of ffmpeg.  Unfortunately, this didn't allow for hardware decoding on Manjaro on my system (fully updated as of today).

I then reverted back (using Diagnostic Options / FFmpeg Options) to override ffmpeg, ffprobe, and ffdetect to continue to use the Ubuntu versions.  I seems that 4.7.5 isn't honoring those overrides anymore.  Here's an excerpt from the transcoding log.  Note how the ffmpeg being used is /usr/bin (the default) and not /opt/emby-server/bin like I have set in the Diagnostic Options.

Also, when I don't override ffmpeg, I do not see any Tone Mapping options.  When I override it, I do see those options. 

I then edited /etc/conf.d/emby-server to point to the Ubuntu binaries.  This did make the transcode log change to show it using those binaries, but it now shows that "superscale_cuda" isn't supported (which it used to be before 4.7).

 

Update:  After sleeping on it, I figured I would update the Ubuntu ffmpeg binaries from the 4.7.5 release.  Doing this solved the problem.

 

 

Hi, I would suggest using this procedure: 

Please let us know if this helps. Thanks.

 

[ctaranto 16]

Thanks, Luke.

I tried, but received an error that there's a missing .sig file:

Quote

[ctaranto@thor-pc ~]$ sudo pacman -U https://mediabrowser.github.io/embytools/emby-ffmpeg-bin-2022_05_07-1-x86_64.pkg.tar.zst
[sudo] password for ctaranto:
:: Retrieving packages...
 emby-ffmpeg-bin-2022_05_07-1-x86_64                      30.4 MiB  24.3 MiB/s 00:01 [################################################] 100%
error: failed retrieving file 'emby-ffmpeg-bin-2022_05_07-1-x86_64.pkg.tar.zst.sig' from mediabrowser.github.io : The requested URL returned error: 404
warning: failed to retrieve some files
[ctaranto@thor-pc ~]$

Also, is there a way to see all the possible emby ffmpeg releases?  I imagine that these will be updated at some point.

 

[alucryd 315]

Please try that instead:

wget https://mediabrowser.github.io/embytools/emby-ffmpeg-bin-2022_05_07-1-x86_64.pkg.tar.zst
sudo pacman -U emby-ffmpeg-bin-2022_05_07-1-x86_64.pkg.tar.zst

[ctaranto 16]

Thanks!  Worked well.

I'm curious about the update strategy for this, as it's not a package from the Arch/Manjaro repository and won't be updated automatically.

 

[alucryd 315]

Great! There are several options, the best being hosting our own repositories, I've been thinking of doing so for rpms and debs as well, we'll have to discuss it internally.

[ctaranto 16]

Sounds good.

Will there be a post somewhere that I could follow to learn about updates to the package so I can manually update as needed?

 

[alucryd 315]

I think the one started by @softworkzand linked above is the one that will get updated with new releases.

[softworkz 5066]

35 minutes ago, alucryd said:

I think the one started by @softworkzand linked above is the one that will get updated with new releases.

Yup! Please subscribe to that topic to get notified once we have any updates!

[ctaranto 16]

An updated ffmpeg (5.1) is needed for Emby 4.8.x.  This update is not available in the Arch repo at this time.

For those on Arch/Manjaro:

wget https://mediabrowser.github.io/embytools/emby-ffmpeg-bin-2023_06_25-1-x86_64.pkg.tar.zst
sudo pacman -U emby-ffmpeg-bin-2023_06_25-1-x86_64.pkg.tar.zst

Related thread where I broke transcoding updating to 4.8, but then fixed it thanks to another user:

 

[looking111 30]

On 4/7/2022 at 4:30 AM, softworkz said:

The green artifacts with HEVC_cuvid are a know issue, that's why HEVC_nvdec is the default.

Can I use this in the current Emby version 4.8.8.0 without the green artifacts? Unfortunately I still have ffmpeg in version 4.4.2 (Ubuntu 22.04), if that should be a problem. 

[softworkz 5066]

On 7/27/2024 at 10:50 PM, looking111 said:

Can I use this in the current Emby version 4.8.8.0 without the green artifacts? 

Yes. 

On 7/27/2024 at 10:50 PM, looking111 said:

Unfortunately I still have ffmpeg in version 4.4.2 (Ubuntu 22.04), if that should be a problem. 

That doesn't matter, Emby includes its own ffmpeg.