http://dokuwiki.reauktion.de/ 2026-05-26T21:33:10+00:00 http://dokuwiki.reauktion.de/ http://dokuwiki.reauktion.de/lib/exe/fetch.php?media=wiki:dokuwiki.svg text/html 2026-04-30T10:58:39+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase1_2026-04-30&rev=1777546719&do=diff ohm_gl_fix — Phase 1 goal formulation, 2026-04-30 Phase 1 of iteration 1. Index: start. Origin: fourier Phase 5 review handover, 2026-04-30 — that page identified Mali EGLImage import cost as the binding constraint on the browser-side GL consumer; ohm_gl_fix is the campaign that addresses it directly rather than via browser-side carrier patches. text/html 2026-05-01T13:08:27+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase1_revised_2026-05-01&rev=1777640907&do=diff ohm_gl_fix — Phase 1 (revised), 2026-05-01 This page replaces the original Phase 1 lock at phase1_2026-04-30. The original locked an mpv-specific quantitative target (“drops from 1039/1440 → within transient-startup floor of gst→waylandsink”) on a single test invocation. By the time text/html 2026-05-01T13:08:33+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase2_2026-04-30&rev=1777640913&do=diff Phase 2 — Situation Analysis (ohm_gl_fix iteration 1) Substrate enumeration on ohm (PineTab2, RK3566, Mali-G52 MP2, hantro-vpu, kernel 6.19.10-danctnix1-1-pinetab2), 2026-04-30. Phase 1 lock: Phase 1 goal formulation, 2026-04-30. Goal target: on bbb_1080p30_h264.mp4 with mpv --hwdec=v4l2request text/html 2026-05-01T13:08:29+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase3_revised_2026-05-01&rev=1777640909&do=diff ohm_gl_fix — Phase 3 (revised), 2026-05-01 This page replaces the original Phase 3 narrative after a methodological correction by Markus on 2026-04-30 (“did you actually trace, or take cheap stdout statistics?”). The original Phase 3 sat on mpv text/html 2026-05-01T13:08:36+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase4_2026-04-30&rev=1777640916&do=diff " 2026-05-01: This page is superseded by phase4_2026-05-01. The 2026-04-30 page is preserved below for audit trail; the live Phase 4 plan is the new page." Phase 4 — The Gap (ohm_gl_fix iteration 1) " Status — replaces the SUPERSEDED 2026-04-30 libplacebo-cache draft. The earlier plan is in git history; it was retracted after text/html 2026-05-01T18:00:54+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase4_2026-05-01&rev=1777658454&do=diff ohm_gl_fix — Phase 4, 2026-05-01 This page replaces both prior Phase 4 drafts: the original libplacebo fd-cache plan (retracted after perf record showed libplacebo at 0.41 % of CPU and the patched code path not on the hot path) and its in-place revision into a “documentation of the gap text/html 2026-05-01T17:38:48+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase4_step1_test_corpus_2026-05-01&rev=1777657128&do=diff ohm_gl_fix — Phase 4 Step 1 test corpus, 2026-05-01 This page is the extended test corpus for Phase 4 from-scratch §3 Step 1, surfaced by Phase 5 review Q4. Sonnet's Q4 argument: bbb_1080p30_h264.mp4 covers ~30 % of YouTube reality. The other ~70 % includes profile and scan-type combinations that hantro most likely fails on, with silent corruption being the worst-case failure mode (silent corruption on MBAFF in particular). text/html 2026-05-01T16:41:29+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase5_review_2026-05-01&rev=1777653689&do=diff ohm_gl_fix — Phase 5 Second-Model Review, 2026-05-01 Per the dev-process Phase 5 step, the campaign artefacts (Phase 1 revised, Phase 2, Phase 3 revised, Phase 4 from-scratch + companion CSVs) were handed to a fresh Sonnet 4.6 instance with challenging the four Phase 4 §7 hand-over questions as its primary task text/html 2026-05-01T18:00:56+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase6_step0_5_uapi_audit_2026-05-01&rev=1777658456&do=diff ohm_gl_fix — Phase 6 Step 0.5: Kernel UAPI surface audit, 2026-05-01 Per Phase 4 §3 Step 0.5 (the post-Phase-5-review amendment): document the actual V4L2 stateless H.264 control structure layout that the hantro driver consumes on RK3566, so that Step 1's src/picture.c text/html 2026-05-01T18:00:55+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:phase6_step0_chromium_wayland_routing_2026-05-01&rev=1777658455&do=diff ohm_gl_fix — Phase 6 Step 0: Chromium's Wayland video presentation path, 2026-05-01 Per Phase 4 §3 Step 0 (with the Q2 methodology fix applied): characterise statically whether Chromium's GPU process routes a hardware-decoded NativePixmap to the Wayland zwp_linux_dmabuf_v1 text/html 2026-05-02T05:56:13+00:00 Anonymous (anonymous@undisclosed.example.com) http://dokuwiki.reauktion.de/doku.php?id=ohm_gl_fix:start&rev=1777701373&do=diff ohm_gl_fix — Mali-G52 EGL/dmabuf import efficiency A scope-narrow campaign to reduce per-frame GL/EGL import cost on Mali-G52 (RK3566) when consuming V4L2-decoded NV12 dmabuf frames. Spun off from fourier on 2026-04-30 after Phase 3 measurements confirmed the import cost is the binding constraint on browser-side video playback.