fa3951344bfc240c328f6e6f14e74dff5b1fa6bb
Root causes found for the 4K stalls and the second-footage memory blowup (audit + code review): - ticket bookkeeping leaked unbounded: the procpool ticket table and the arena slot map only ever grew (50-100 tickets/sec during playback, each pinning montage params and shm region views). Completed/cancelled/superseded/crashed entries are now removed, and the arena reaps fire-and-forget tickets once finished; the sync poll path reaps via a terminal result() read. InFlight duplicate submits now answer State immediately instead of sitting in the map forever. - decode ran a full-resolution swscale to F32 RGBA (~132 MB at 4K) plus a second full-res copy before downscaling to the 480px proxy: RetrieveVideoParams.target_size lets swscale convert AND resize in one pass (bilinear, matching the old Rust resampler), so a 4K preview frame costs ~1 MB instead of ~260 MB of churn. This applies to proxy AND full-res requests alike. - per-process decoder cache was unbounded (each session pins an FFmpeg context + 2 native decoded frames): LRU-capped at 16, eviction drops the map entry (in-flight renders keep their Arc; Drop releases FFmpeg). - playback window completions were not generation-gated: a stale render from before an edit landed in the rebuilt window (wrong frame displayed, fresh request blocked). Stale completions now return their shm slot credit instead. - async audio prefetch used the polling ticket submit without ever polling: switched to the fire-and-forget submit so entries reap.
Oak Video Editor 
Oak Video Editor is a free non-linear video editor for Windows, macOS, and Linux.
This project is a community-maintained fork of Olive Video Editor.

NOTE: Oak Video Editor is alpha software and is considered highly unstable. While we highly appreciate users testing and providing usage information, please use at your own risk.
Binaries
The binary can be downloaded here:
Building from Source
See docs/build.md for build instructions on Windows (MSYS2), Linux (Debian/Ubuntu, Fedora, Arch Linux), and macOS.
Documentation
- Project Storage Architecture (中文) — database write-through persistence, node-granular journal, persistent undo
- Build guide · 工程文件格式
Roadmap
| Version | Theme | Core Deliverables | Boundary Notes |
|---|---|---|---|
| 0.3 | Plugin Architecture Milestone | Production-ready OpenFX host support | Not about quantity of plugins, but "any OFX plugin loads without crashing" |
| 0.4 | Color, Audio & Performance | .cube/.3dl support, scopes (waveform/vectorscope/histogram), three-way color wheels, waveform auto-sync, BWF timecode sync, audio meters (LUFS/VU), proxy media workflow, hardware-accelerated export (NVENC/VideoToolbox), batch render queue |
Combines the previous 0.4-0.6 scope into one usability milestone: color workflow, audio sync, and 4K/8K performance |
| 0.5 | Animation, Tracking & Collaboration | Bézier keyframe curve editor, basic point tracking, image stabilizer, full multicam angle switching, OpenTimelineIO, EDL/XML import/export | Combines the previous 0.7-0.8 scope into one timeline/interchange milestone |
| 0.6 | Stability Milestone | Project file format freeze (backward compatibility promise), crash recovery, autosave, memory optimization | "Feature freeze" testing period before 1.0 |
| 1.0 | Production Ready | Complete documentation, installers, known issues list, community support channels | Declared "ready for serious projects" |
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