FFmpeg VAAPI AV1 - Can't figure out recording settings on 9070

Tantalus

New Member
On 31.0.4, CQP, CBR, and VBR have constantly grainy output even at higher values, like CQP 20. Looks like a 70% jpg on a static scene.
CBR QP is working though, as QP 51 looks way worse overall than QP 20, with bitrates to match.

I got 31.1.0 today. Those three options still produce the same grainy look. But the new QVBR looks a lot better. No obvious graininess, just minimal compression.
Problem is, changing the quality options with that doesn't do anything to the quality. And the bitrate immediately skyrockets to 1000+ Mbps when trying to capture gameplay at 1440p 60 FPS. QP 20 and 51 look the same. Bitrate 2500 and 50000 look the same. Both options go up to 1000+ Mbps.

FFmpeg VAAPI HEVC options still work exactly as expected, at least.
 

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Tantalus

New Member
Here's a comparison for some visualization.
FFmpeg VAAPI AV1. CQP QP 20 on the left. QVBR QP 20, Bitrate 2500, Max Bitrate 0, 2 Max B-Frames on the right.
2s Keyframe Interval for both.
 

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