obsproject / obsproject/obs-studio

AV1 Video Decode with Media Source does not use HW Decode on AMD Windows

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#10,213 16 comments 0 reactions 1 assignee View on GitHub

@RytoEX is already working on this.

Since Feb 6, 2024.

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Description

Operating System Info

Windows 11

Other OS

No response

OBS Studio Version

30.0.2 and 30.1-beta1

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/LPk6Mr1icydav9OL

OBS Studio Crash Log URL

No response

Expected Behavior

I expect hardware decoding to be used on AMD AV1 when using the "Media Source"

Current Behavior

Software video decode on the CPU is used for AV1 when using the "Media Source"

Steps to Reproduce
  1. Use "Media Source" on AMD Windows with AV1 decode support and tick the "Use hardware decoding when available" box
  2. Observe no Video Codec usage and high CPU utilization
Anything else we should know?

Tested the same file in Windows Media Player and Video Codec is used and CPU usage is very low (HW decode is used). So this is not an issue with the tested video files (I have tried AV1 video files all with the same result).

VP9 AMD HW accelerated decode works in "Media Source"

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