Move ffmpeg execution from Electron to Go Core so conversion works in
both Electron and web server modes.
Go Core backend:
- Add -ffmpeg-bin CLI flag to pass ffmpeg binary path
- Enhance Conversion DB model with status, outputPath, outputFormat,
quality, progress, and error fields
- Create converter executor (service/converter.go) that spawns ffmpeg,
builds args per format/quality, and parses stderr for progress
- Add StartConversion/StopConversion to service with SSE events for
real-time progress (conversion-start/progress/success/failed/stop)
- Add POST /api/conversions/:id/start and /:id/stop endpoints
Supported formats:
- Video: MP4 (H.264), MKV (H.264), WebM (VP9) with CRF quality
- Audio: MP3, AAC, FLAC, WAV with bitrate quality presets
- Quality presets: high/medium/low mapping to CRF and bitrate values
Frontend (converter-page):
- Add format selector (Video/Audio groups) and quality dropdown
- Show per-item status badge, progress bar during conversion
- Action buttons: Start/Stop/Open Folder/Delete based on status
- "Convert All" batch button for pending items
- SWR auto-refresh during active conversions
Integration:
- Pass -ffmpeg-bin from Electron and core:dev to Go Core
- Remove old broken Electron-only convertToAudio code
- Add startConversion/stopConversion to core-sdk and GoApi
- Add i18n keys for new UI elements (en/zh)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Converted all Chinese-language comments across 47 source files to
English, covering Go backend (apps/core, apps/player), TypeScript
scripts, Electron main process, UI components, and shared packages.
Only comment text was modified — code, string literals, log messages,
and i18n translation values were left untouched.
Also fix pre-existing lint errors in scripts/release.ts and
scripts/utils.ts (node: protocol prefix, unused imports, bare catch).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>