From cfe79918e3c9b31a8aa8bd6a7bb4cbf7212ea6ac Mon Sep 17 00:00:00 2001 From: Claude Date: Sun, 19 Jul 2026 09:52:39 +0000 Subject: [PATCH] =?UTF-8?q?plans/x265:=20record=20PROBE-RDO-ARBITER=20?= =?UTF-8?q?=E2=80=94=20the=20self-optimizing=20axis,=20measured=20(0.64)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The endgame's third axis. A free-energy mode arbiter dispatches MortonShift-vs-Residual per region by content (64/64 correct), and the adaptive composite beats the fixed pipeline by 36% after signal overhead. "Self-optimizing" is now a number. Full write-up: lance-graph E-X265-RDO-ARBITER-1. Co-Authored-By: Claude Opus 4.8 Claude-Session: https://claude.ai/code/session_01K3RyLEbuNSHxxB3NTTrGki --- .claude/plans/x265-sprite-replay-probe-v1.md | 30 ++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/.claude/plans/x265-sprite-replay-probe-v1.md b/.claude/plans/x265-sprite-replay-probe-v1.md index 5f085106..b253e0ad 100644 --- a/.claude/plans/x265-sprite-replay-probe-v1.md +++ b/.claude/plans/x265-sprite-replay-probe-v1.md @@ -329,3 +329,33 @@ magnitude (dis-occlusion grows with the delta); non-rigid motion is out of scope sub-pel **appearance** (vs position) is the inverse-pyramid-descent leg; cross-level carry for large objects; and the real-x265 inter-frame byte comparison at matched PSNR. + +## Self-optimizing axis — PROBE-RDO-ARBITER (the endgame's last word, measured) + +The operator's endgame framing — "a self-optimizing space-time-aware graph" — has +three axes, and the arc measured all three: SPACE = `E-X265-MORTON-SHIFT-1` +(address-arithmetic motion); TIME = `E-3DGS-MU-HYDRATION-2` (the transmitted +generation-index); SELF-OPTIMIZING = this probe, the RDO / free-energy mode arbiter. + +### Results — RAN (2026-07-19, lance-graph `E-X265-RDO-ARBITER-1`) + +`crates/helix/examples/rdo_arbiter_probe.rs` (std-only, SplitMix64, 5 tests green): + +``` +dispatch_correct=64/64 ms_picks=32 res_picks=32 ← perfect content-adaptive dispatch +composite_bytes=5212 all_residual_bytes=8178 signal_overhead=64 +composite_over_fixed_ratio=0.6373 ← adaptive 36% cheaper than fixed, INCLUDING mode-signal +flip: rigid→MortonShift, newcontent→Residual ← the choice reads content, not a label +``` + +**Verdict: PASS→[H].** A free-energy arbiter detects rigid-motion applicability per +region (a real `rigid_match` search), dispatches MortonShift-vs-Residual by +`argmin(bits)`, and the adaptive composite beats the fixed (address-substrate-less, +x265-like) pipeline by 36% — after paying the per-region mode-signal. "Self-optimizing" +is now a number: **0.64**. RDO mode-decision ≡ active-inference dispatch. Not a +tautology: applicability-detection + content-flip + surviving signal overhead + +rigid-localized savings are the load-bearing content. + +**v2 (honest):** the residual rate is a `bits/px` MODEL not a real entropy coder (the +#1 parity gap); a λ-swept rate-distortion frontier + a larger ME window are v2; 0.64 +is content-dependent proof-of-mechanism, not a headline compression number.