Files
video_concat/README.md
youfu 37ec549544 v5: standalone Tauri rewrite — Rust backend + TypeScript UI
Complete rewrite from the Python/Tkinter app to a native Tauri 2 desktop
app. Drops the song-detection feature, so it needs no Python and no ML
model — just ffmpeg. Replaces video_concat.py entirely.

- Rust backend (src-tauri): stream-copy concat via ffmpeg with honest
  real-time progress (-progress pipe:1, out_time vs total duration), held
  at 99% through the +faststart finalising pass so the bar never jumps
- ffprobe duration scanning parallelised across threads; cancel kills the
  whole ffmpeg process tree; CREATE_NO_WINDOW hides console flashes
- BiliBili Live filename helper ported to Rust (bililive_rename)
- TypeScript UI, no framework: tiny h() DOM helper, drag-and-drop,
  reorderable/checkable file list with live totals, light/dark theme,
  reusable toast + progress components
- Optional delete-originals-after-merge with a clear warning
- New app icon (three clips merging into one); build.bat assembles a
  portable folder with ffmpeg/ffprobe bundled next to the exe
- Ignore tauri-generated gen/schemas (regenerated on every build)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-26 22:24:59 +08:00

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# Video Concat
A small, focused desktop app that **merges split stream recordings into one
file** using ffmpeg stream-copy (`-c copy`, no re-encoding — fast and lossless).
Built with Tauri 2 (Rust backend + TypeScript UI).
This is a standalone spin-off of Stream Studio with the song-detection feature
removed, so it needs **no Python and no ML model** — just ffmpeg.
## Features
- Drag-and-drop / browse to add videos, reorder, select which to merge.
- Stream-copy concat with honest real-time progress (and a `+faststart`
finalising pass so the output seeks instantly).
- BiliBili-Live filename helper (`[date][uploader][title]` → readable name).
- Optionally delete the originals after a successful merge.
## Build a standalone (copy-paste) version
Double-click **`build.bat`**. It compiles the app and assembles a portable
folder with ffmpeg bundled:
```
dist-portable\VideoConcat\
Video Concat.exe <- double-click this
ffmpeg.exe <- bundled
ffprobe.exe <- bundled
```
Copy that whole `VideoConcat` folder to any Windows PC and run it — nothing else
to install.
### Build requirements (on the build machine only)
- [Node.js](https://nodejs.org/)
- [Rust](https://rustup.rs/) (`winget install Rustlang.Rustup`)
- Visual Studio 2022 with the **Desktop development with C++** workload
- ffmpeg (in `C:\ffmpeg\bin` or on `PATH`)
## Develop
Double-click **`dev.bat`** (hot-reload UI + Rust). Needs ffmpeg on `PATH`.