Re: Radeon RX580 and trouble with Ffmpeg

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Author: Jim via PLUG-discuss
Date:  
To: Ryan Petris, PLUG-discuss
CC: Jim
Subject: Re: Radeon RX580 and trouble with Ffmpeg
Thanks.  That will give me something to look into over the weekend.

On 4/5/24 17:34, Ryan Petris wrote:
> There's likely some setting you have to enable or change to enable
> hardware acceleration. You'll probably have to poke around or google
> for that as I'm not that familiar with those settings in Handbrake.
>
> That said, depending on what you're trying to do, you may just want to
> use CPU encoding anyway. You have a lot more control over what the
> final product looks like with CPU encoding that you do hardware
> encoding. With hardware encoding you can give it some parameters but
> ultimately you get whatever the encoder spits out, while you have many
> more knobs to turn for CPU encoding. You'll spend more time encoding
> but you'll likely end up with a better quality and smaller file with
> CPU encoding.
>
> On Fri, Apr 5, 2024, at 4:42 PM, Jim via PLUG-discuss wrote:
>>
>> Thanks Ryan for the advice.  You mentioned the mesa and vdpau drivers
>> for hardware video acceleration.  I'm testing handbrake now by having
>> it transcode the same video (25 minutes) and same settings I
>> mentioned earlier. ( H264 1440x1080 to 640x480).  This time it's also
>> using around 95% of the cpu and transcoding at around 80 fps.  Is it
>> using the hardware acceleration?
>>
>>
>> Thanks
>>
>> On 4/5/24 15:37, Ryan Petris via PLUG-discuss wrote:
>>> Yeah, I wouldn't use the proprietary AMD drivers. Jim, undo whatever
>>> it is that you did with the amdgpu-pro drivers and install the
>>> "xserver-xorg-video-amdgpu" (if you're on debian or a debian based
>>> distro, which I assume you are based on the mentioning of a deb
>>> package) and restart. That should be all you need.
>>>
>>> If you're wanting hardware video acceleration you can also install
>>> the following packages:
>>>
>>> mesa-va-drivers
>>> vdpau-driver-all
>>>
>>> Those are listed on this wiki page:
>>> https://wiki.debian.org/HardwareVideoAcceleration
>>> <https://wiki.debian.org/HardwareVideoAcceleration>
>>>
>>> On Fri, Apr 5, 2024, at 3:29 PM, 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
>>>> <>
>>>> <mailto:plug-discuss@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
>>>>     <>
>>>>     <mailto:plug-discuss@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
>>>>         <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/
>>>>         <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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