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- **Admin Settings page** for TMDB + Radarr config with masked inputs + connection test
### Phase 3 (2026-04-29)
- **Adaptive bitrate (ABR) HLS**: admin can choose Quick (stream-copy, single-rate, instant) OR ABR (re-encode to 360p/480p/720p/1080p with master playlist)
- **Smart variant selection**: ABR ladder auto-trims to source resolution (no upscaling)
- **Auth-aware playlist serving**: master.m3u8 and per-variant playlists are rewritten on serve to inject `?auth=token` into all relative URLs, so hls.js segment requests stay authenticated
- **Quality badge** in admin row shows whether HLS is `Quick` or `ABR`
- **Defensive `-pix_fmt yuv420p`** ensures encoder works across all source chroma formats
- Verified end-to-end: 720p source → 3 variants (720p/480p/360p) generated in seconds with proper master playlist
- **Adaptive bitrate (ABR) HLS**: admin chooses Quick (stream-copy, instant) or ABR (re-encode to 360p/480p/720p/1080p with master playlist)
- Smart variant selection: ladder auto-trims to source resolution (no upscaling)
- Auth-aware playlist serving rewrites `?auth=` into every relative URL so hls.js segment requests stay authenticated
- Quality badge in admin row shows `HLS done · Quick` or `HLS done · ABR`
- Defensive `-pix_fmt yuv420p` ensures encoder works across all source chroma formats
### Phase 4 (2026-04-29)
- **Background Transcode Queue** with persistent storage in MongoDB
- Single FIFO worker started at backend boot; processes one job at a time
- ffmpeg runs at **low CPU priority** (`nice -n 19`) so streaming + UI stay snappy during transcodes
- **Auto-transcode** toggle in Settings: Off / Quick / ABR — applied to every new upload AND Radarr import
- **Pause/resume** queue, **cancel** pending jobs, **retry** failed/cancelled jobs, **clear** finished history
- **Stat tiles** (pending/running/done/failed/cancelled) on `/admin/queue`
- **Crash recovery**: stuck `running` jobs are reset to `failed` on backend restart
- Cancel of a pending job clears `hls_path` to avoid stale references
## Backlog (P1)
- Sonarr (TV shows): requires episodes/seasons data model — significant addition
- Subtitle search via OpenSubtitles API
- Multi-bitrate HLS (current is single-rate stream-copy)
- Trakt.tv sync (mark watched, ratings)
- DLNA/Chromecast casting