Mike-Solar 84caa3589b app: sync the playback clock to the sequence rate; heal underruns by trimming
Two playback-audio defects found while chasing periodic pops, clipped
words and repeated phrases:

1. The playback clocks are created at engine init with the fallback
   rate (hd_1080p25) and never updated, while audio chunks are sized by
   the SEQUENCE time base (30/1 from the broken default). The playhead
   advanced at 25 fps but each chunk carried only 1600 samples, so
   production ran at 40000 samples/s against the device's 48000 -- ~17%
   of playback time was zero-filled silence (clipped words). tick() now
   syncs both clocks to the sequence's actual rate.

2. The underrun self-heal cleared the whole device queue (~190 ms of
   unheard content skipped), reset the prefetch (whose first
   re-rendered chunk was then always dropped as late) and re-anchored
   the master clock, re-rendering already-played audio whenever the
   playhead lagged (audible as a pop plus a repeated phrase, every
   ~1.1 s). It now trims just the stale lead from the queue
   (PreviewAudioDevice::drop_front_frames): the zero-fill already
   advanced the output clock past that content, so the rest of the
   queue stays audible and the anchor stays valid.

Also adds the OAK_DEBUG_AUDIO event log used to diagnose all of this
(prefetch resets, late drops, underruns, heals, reanchor jumps,
per-tick queue state).
2026-08-29 23:31:35 +08:00
2024-05-13 14:49:53 +02:00

Oak Video Editor CI

中文

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. screen

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:

v0.4.2

v0.4.1

v0.4.0

Building from Source

See docs/build.md for build instructions on Windows (MSYS2), Linux (Debian/Ubuntu, Fedora, Arch Linux), and macOS.

Documentation

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"
S
Description
No description provided
Readme GPL-3.0
95 MiB
Languages
Rust 82.2%
HTML 11.9%
C 4.8%
C++ 0.7%
Shell 0.4%