dtourolle
041969f446
A transcoded episode stalled every few seconds and seeking took five to nine seconds to produce a frame. Neither was a seek bug: both seeks in the capture landed correctly. The stream itself could not keep up. The episode was HEVC video, E-AC-3 audio, and a PGSSUB subtitle track. Only the audio needed transcoding — the device profile supports HEVC and the server would have remuxed the video untouched. But the PlaybackInfo request omitted SubtitleStreamIndex, and omitting it does not mean "no subtitles": the server then honours the source's default/forced flag and picks a track itself. It picked the PGS one. PGS is a bitmap, and the profile advertised only srt/vtt as External, so it could not go out as a sidecar — leaving SubtitleMethod=Encode, burn-in. Burn-in is a video cost, not a subtitle cost. Compositing rules out remuxing, so the whole HEVC stream was re-encoded to h264 frame by frame. The server could not sustain that in real time: the buffer never grew past one segment and playback ran waiting -> HLS error -> canplay -> three seconds of picture, indefinitely, while each seek restarted the encoder from scratch. TranscodeReasons named it — SubtitleCodecNotSupported — but nothing in the log connected that to the stall, so the diagnostic now says which track it is declining and why. Ask for SubtitleStreamIndex=-1 explicitly, and advertise every text format we can render (srt/subrip/ass/ssa/vtt) as External so a subtitle can only ever arrive as a sidecar. Nothing is lost: the app already fetches subtitle tracks itself and draws them over the video (UR-020), so the server's composited copy was always redundant. Image-based tracks are consequently not offered, which is honest rather than a regression — the renderer cannot composite a bitmap, and the previous behaviour paid for them by making the stream unwatchable. The policy lives beside the other device-profile rules in Rust, where it is testable without a device. TRACES: UR-020, UR-004 | DR-176 | UT-168
JellyTau
A cross-platform Jellyfin client built with Tauri, SvelteKit, and TypeScript.
Business logic lives in a Rust backend; a UI-rich Svelte frontend handles presentation and talks to it over Tauri's IPC. Targets Linux (libmpv) and Android (ExoPlayer).
Getting Started
This project uses bun as its package manager.
# Activate the Rust environment (fish shell)
source "$HOME/.cargo/env.fish"
# Install dependencies
bun install
# Run in development
bun run tauri dev
# Type-check the frontend
bun run check
# Build for Linux
bun run tauri build
# Build for Android
bun run tauri android build
For the full set of build, test, and Android helper scripts, see scripts/README.md.
Documentation
| Topic | Location |
|---|---|
| Architecture overview & subsystem docs | docs/architecture/ |
| Requirements, traceability & technical debt | docs/requirements.md |
| Build & release process | docs/build-release.md |
| Docker builds | docs/build/docker.md |
| Traceability tooling & CI | docs/traceability.md, docs/traceability-ci.md |
| Release checklist | docs/release-checklist.md |
| UX flows | docs/ux-flows.md |
Recommended IDE Setup
VS Code + Svelte + Tauri + rust-analyzer.
License
MIT