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Use async_depth option on vaapi for much better encoding performance

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dec05eba
2024-09-18 00:11:23 +02:00
parent 702c681a95
commit 41bd6cee63
5 changed files with 30 additions and 14 deletions
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@@ -157,3 +157,10 @@ Add cbr option.
Restart replay/update video resolution if monitor resolution changes.
Fix pure vaapi copy on intel.
ffmpeg supports vulkan encoding now (h264!). Doesn't work on amd yet because mesa is missing VK_KHR_video_maintenance1, see https://gitlab.freedesktop.org/mesa/mesa/-/issues/11857. Test on nvidia!
Test vaapi low latency mode (setenv("AMD_DEBUG", "lowlatencyenc", true);), added in mesa 24.1.4, released on july 17, 2024. Note that this forces gpu power usage to max at all times, even when recording at 2 fps.
Use nvidia low latency options for better encoding times.
Test ideal async_depth value. Increasing async_depth also increased gpu memory usage a lot (from 100mb to 500mb when moving from async_depth 2 to 16) at 4k resolution. Setting it to 8 increases it by 200mb which might be ok.