nx_video_h2h.nx

nx_video_h2h.nx -- THE VIDEO-CALL HEAD-TO-HEAD JUDGE, SOVEREIGN AND RECEIPTED (2026-09-02). Operator: "get nishifamily.com/video properly evaluated ... true jitsi and above performance ... using MSU VQMT as the benchmark and oracle ... native first byte up nishi on everything". Jitsi and native WebRTC are REFEREES here, never the direction: every arm plays the SAME index-strip test card (akiyo_cif + a machine-readable frame index burned into the top luma rows) through a real browser client, and the SAME 20 ms strip reader records what each receiver actually RENDERED. This organ is the only thing that computes or judges: the drivers dump raw samples and never a number. GLASS-TRUTH DELIVERY (per receiver): effective displayed fps, delivered fraction (distinct frames shown over the source index span), stalls (a gap longer than VH_STALL_MULT source intervals, the WebRTC freezeCount rule), glass-to-glass latency (receiver first shows index i minus the sender's own preview first showing index i -- one machine clock). FULL-REFERENCE FIDELITY (VQMT class): PSNR and SSIM of the received 352x288 luma against the SENDER'S preview of the same index (both rendered by the same browser pixel pipeline = the fair reference), strip band excluded, using the estate's sovereign metric organ nx_quality_metric (the seed of the sovereign VQMT; MS-SSIM/VMAF-class are the gap). Writes ONE receipt (<dom>.bench grammar, nx_bench_receipt_lib -- the reader the /compare generators and gates share): min_us/median_us = glass-to-glass latency, checksum = the test card (every arm must have played the same card or its row is VOID), note = the delivery + fidelity numbers. A receiver that never rendered a remote is a RUN-FAIL row that SAYS so, never a missing row. usage: nx_video_h2h <out.bench> <ref-arm-name> <samples.txt> [samples2.txt ...] (frames come from <samples>.frames.idx/.bin) exit: 0 VALID . 1 VOID (an arm played a different card) . 2 usage . 3 UNMEASURABLE (no ref arm / ref not VALID) license_tier: ORIGINAL No hw writes (Rule 26).