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mp4trim 2.2.0

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@blarer blarer released this 01 Oct 16:16
· 31 commits to master since this release
v2.2.0
a99564c

Self-contained Windows 10/11 x64 installer (ffmpeg, Python, Qt and the VC++ runtime are inside; per-user, no admin).

New in 2.2.0: frame-exact, lag-free scrubbing

Dragging the timeline used to seek the video player for every mouse move, and on high-bitrate clips (e.g. 1440p60 AV1 from OBS) each seek re-decoded from the previous keyframe, so the picture lagged far behind the bar. Scrubbing now runs on a dedicated engine:

  • the first drag into a keyframe chunk starts one decoder that streams that whole chunk into RAM (first frame ~100 ms)
  • every further position in the chunk is an instant cache hit, so the preview is 1:1 with the playhead, including fine scrubbing frame by frame
  • recently used chunks stay cached (~420 MB cap, LRU evicted); releasing the mouse hands the exact position back to normal playback
  • the player is never seeked during the drag, only once on release

Everything from 2.1: OLED theme, « / » folder browsing, Apple-style fine scrubbing tiers, Discord-sized exports, lossless trim, --selftest.

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