Radeon RX580 and trouble with Ffmpeg

[Jim]

Thanks.  I've read that tonight.  Earlier just for the fun of it I 
installed the Radeon drivers on winsows10.  I installed handbrake and 
had it transcode the same video I experimented with earlier.  When I 
chose the codec,  I found H.264 (AMD_VCE).  There was also an H.265 
AMD_VCE option but I didn't try it.  Handbrake in Windows was 
transcoding the video at around 100 to 110 fps and only using 1% of the 
CPU.  I may not use hardware acceleration for encoding often, but I'd 
like to have it available.  It doesn't matter to me if I use the open 
source drivers or the proprietary ones.  I can't help but wonder why it 
won't work in Linux.

On 4/5/24 15:29, z via PLUG-discuss wrote:
> I also don't think I made it clear that mesa is probably better than 
> the proprietary AMD drivers on linux. The same is untrue on NVIDIA.
>
> Apr 5, 2024 15:11:16 z via PLUG-discuss <plug-discuss at lists.phxlinux.org>:
>
>     Do you truly need proprietary drivers? That card is one of the
>     best supported by open source software. So I would just install
>     mesa, which should be easily installed from your distro's package
>     manager, if it's not installed already.
>
>     Assuming you do need proprietary, maybe try a reboot if you
>     haven't already? It's giving a missing binary error and sometimes
>     I get those after a kernel update and not rebooting.
>
>
>
>     Zack
>
>     Apr 5, 2024 14:43:44 Jim via PLUG-discuss
>     <plug-discuss at lists.phxlinux.org>:
>
>         Today the Radeon RX580 graphics card I bought arrived. To get
>         the drivers for the card, I went here
>
>         https://www.amd.com/en/support  where I downloaded
>         amdgpu-install_6.0.60002-1_all.deb
>
>         Next I started following the instructions at
>         https://amdgpu-install.readthedocs.io/en/latest/ then I
>         started running into problems.
>
>         amdgpu-install --vulkan=amdvlk,pro gave me 2 errors:
>
>         E: Unable to locate package vulkan-amdgpu-pro and the same for
>         vulkan-amdgpu-pro:i386
>
>         I kept going and entered amdgpu-install -y --usecase=workstation
>
>         That returned the errors Unable to locate package amdgpu-pro
>         and amdgpu-pro-lib32
>
>         With the error messages I figured I'd have problems, but I
>         tried to find out if I could use the hardware acceleration so
>         I entered|:|
>
>         |ffmpeg -i input.mp4 -c:v h264_amf -c:a copy output.mp4
>
>         That gave me several errors.  The first one was [h264_amf @
>         0x562e1f855380] DLL libamfrt64.so.1 failed to open|
>
>         |So I tried sudo updatedb and locate libamfrt64.so.1 which
>         returned nothing.  That told me the file wasn't there.|
>
>         |I tried to transcode a file with Handbrake but it didn't show
>         h264_amf among the available codec options.|
>
>         |I tried searching for how to install libamfrt64.so.1 but all
>         I got was references to steps I already tried.
>         |
>
>         |Did I make a mistake somwhere or does AMD need to fix something?|
>
>         |Thank for your help.|
>
>         |Jim
>         |
>
>
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