Unusally high bitrate when encoding with vah265enc on RX 7900 XT
I used vah265enc plugin to record video through obs and obs-vaapi plugin and noticed the bitrate will increase to several hundred Mbps when leaving the bitrate setting to 0 (auto-calculate the bitrate), and the encoder got overloaded and skipped a lot of frames. But I found the video encoded through vaapih265enc plugin was fine, and the encoding finishes as soon as the recording stops. I have also tried limiting the bitrate to 60Mbps, but the encoder still got overloaded. Could there be a regression?
System Information | |
---|---|
OS | Arch Linux |
Kernel | 6.2.1-cachyos-lto |
GPU | RX 7900 XT |
Vulkan and va drivers | Mesa 23.0.0 |
Gstreamer-plugins-bad Version | 1.22.0 |
OBS Version | 29.0.2 |
Link to obs-vaapi plugin: obs-vaapi