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GPUOpen-LibrariesAndSDKs / AMF

The Advanced Media Framework (AMF) SDK provides developers with optimal access to AMD devices for multimedia processing
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[Bug]: ffmpeg av1_amf encode freezes system #425

Open markg85 opened 11 months ago

markg85 commented 11 months ago

Describe the bug Encoding a video with amf_av1 causes system to freeze. Only a hard reset solves it. Ex. ffmpeg -i <input> -pix_fmt yuv420p -c:v av1_amf -y <output>

To Reproduce Steps to reproduce the behavior:

  1. install the amf driver on linux along with ffmpeg
  2. ffmpeg -i <input> -pix_fmt yuv420p -c:v av1_amf -y <output>
  3. freeze

Setup (please complete the following information):

Debug Log (please upload or paste): Unable to see, system freezes

Expected behavior Don't freeze, encode as instructed.

Screenshots N/A

Additional context I can encode with hevc_amf just fine which leads me to think the drivers are properly loaded. Also note that i'm prefixing my ffmpeg commands with vk_pro (according to this documentation) which essentially loads the drivers for the command that follows it.

I'll happily provide debug logging but having a system freeze makes this very difficult. Even if i'd see logging, i still can't copy it as - well - freeze.. can't do anything besides a hard reset.

rhutsAMD commented 11 months ago

The issue when encoding AV1 on Linux with a GPU such as Radeon RX 7900 XT is known. We are working on this and it will be fixed in an upcoming driver release.

markg85 commented 11 months ago

I'm looking forward to that! Any hint on which driver version that might be?

markg85 commented 4 months ago

Any update here? Is there a release where this work? I just tried it again and at least on ffmpeg 6.1.1 it still freezes the gpu. Do note that this is the ffmpeg from arch (aka, mostly vanilla), it's not a special flavor.

rhutsAMD commented 4 months ago

A fix has been made internally and will be available in a future public driver release. We will notify when the exact release is made publicly available.

markg85 commented 4 months ago

(this post is all in an ffmpeg + linux mindset!)

Hi @rhutsAMD,

That is great to hear! I do hope "future" means "next release" or "this year" at the latest.

It's also very disappointing that it's taken this long. This card was unveiled on November 3rd 2022 in an AMD press release with AV1 being mentioned no less then 7 times out of which 6 were in the context of encoding!

We're about 18 months further now and still AV1 encoding just doesn't work. That's a shame for a high end card costing near a thousand bucks.

To end on a positive complementary note. The linux support outside of AV1 is commendable! I'm happy i got this card to work mere months after release on Linux with only minimal issues. That includes hardware video decoding working out of the box! That's all very commendable! Nicely done! It's one of many reasons for me to pick AMD over that other GPU vendor.

1848 commented 3 months ago

Still no release date?

MikhailAMD commented 3 months ago

Hi, we understand the frustration, but public Linux drivers are not updated as often as Windows drivers. The fix is coming in the next Linux driver release.

markg85 commented 3 months ago

I'm curious if that next version is just an AMF update that others can use. By which i intent to say that it's a backwards compatible library update that just works. Or does it mean that the next AMF release makes it work (from an AMF point of view) and that the next ffmpeg release (so after that next AMF release) will be the one where it's fixed in the full stack?

If it's the later then we're waiting on:

Which could still mean next year in terms of general availability.