Phase 3: remove "no-talk" gaps (Whisper-segment based, not audio silencedetect
which finds nothing under background music) and render a trimmed (+speed) video
via ffmpeg, with subtitles remapped to match.
- KeepIntervalPlanner + TimelineRemapper (pure, unit-tested): keep/remove plan
from segments (pad/minGap) and timestamp remap f(t)=t-removedBefore(t)
- GET /{id}/trim-plan (preview: keep/remove/remapped segments/kept duration)
- POST /{id}/render (multipart: file,pad,minGap,speed) -> proxy Python /render
(ffmpeg trim/atrim+concat+atempo) -> mp4 download; ffmpeg graph validated locally
- rework.html: export panel (speed + speech-gap trim preview + SRT/video export),
client-side SRT from working segments, language selector (auto/ko/en/zh/ja)
- transcribeFromFile forwards optional language (Whisper auto-detect misfired -> zh)
Spec updated with the audio-silence -> speech-gap design correction.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
hehihoho3@gmail.com
8178d45209