Open-IOV vGPU-IO: host-side GSP emulation for unmodified NVIDIA guest drivers https://git.vgpu.io/open-iov.git/atom?h=master 2026-10-27T06:31:13+00:00 2026-10-27T06:31:13+00:00 Arthur Hanson Rasmusson arthur@vgpu.io 2026-10-27T06:31:13+00:00 urn:sha1:f43f8154f6e97b29d4b2a02692d4826339eef8a5 split_screen.sh composes two guest frame streams (KVMFR PPMs from frame_reader.py) into one hstacked mp4 with last-frame padding for unequal lengths; build_video.sh wraps a title card, the main segment and an end card (drawtext, detected font) into the deliverable mp4. Both verified end-to-end with synthetic PPM sequences (ffprobe: 1280x720 h264, padding pixel-exact). These are the capture-side pieces for the 1.0.0 video; the guest-side publishers are tools/guest-diag/xshm_pub.c (X screen) and the existing frame_producer; the host reader is tools/lg/frame_reader.py.