Linux DRM/KMS virtual display driver — streams the compositor's scanout zero-copy as a DMA-BUF straight into a hardware encoder. An EVDI alternative for low-latency screen capture (used by Hermes).

Reference tools and docs for Allwinner Cedar H.264 encoding on H618 / TrimUI devices

Remote VideoToolbox for FFmpeg: use a Mac or Apple Silicon system over LAN as an IP-based H.264/HEVC encode/decode/transcoding accelerator.

i.MX 8QuadMax HDMI Rx Capture and H.264 Hardware Encode Demo using GStreamer