Advertising a webview-shaped profile (DR-148) was necessary but not sufficient. Probing the server directly showed Jellyfin 10.11.5 enforces a DirectPlayProfile's Container and VideoCodec — excluding either returns SupportsDirectPlay:false with TranscodeReasons=ContainerNotSupported / VideoCodecNotSupported — but ignores its AudioCodec entirely: an E-AC-3 track is still offered for direct play against a profile listing only aac,flac,mp3,opus,vorbis. Neither a VideoAudio CodecProfile forbidding the codec nor MaxAudioChannels:2 against a 6-channel track changes the answer, so no profile the client can send fixes this and the picture plays silent. The client therefore stops delegating a question it can answer itself. The negotiated source's audio is checked against what the webview decodes, and an undecodable track forces the existing h264/aac HLS transcode regardless of the server calling direct play fine; direct_play and needs_transcoding are corrected to match so the frontend and the reporting path agree with the URL actually used. The track judged is the one that would be served — the default, else the first — since a supported track further down is not the one that plays. A source with no audio, or a codec the server did not name, is left alone rather than transcoded on a guess. Test-first: the new tests failed against the old behaviour before the decision existed. Verified on a motorola edge 30 by the audio HAL, not by ear — the same E-AC-3 episode logged isMusicActive=true once and 58 ACDB-LOADER lines under this build, against 0 and 0 on 0.4.6, where an AAC file in the same session produced 16 and 116. No FATAL EXCEPTION, so R8 on the signed release build is unaffected. Also carries in-flight subtitle-track work authored in a parallel session (subtitleTracks, VideoPlayer, player/media, bindings) at the user's request, so the tag matches the APK verified on device.
Development Scripts
Collection of utility scripts for building, testing, and deploying JellyTau.
Testing Scripts
test-all.sh
Run all tests (frontend + Rust backend).
./scripts/test-all.sh
test-frontend.sh
Run frontend tests only.
./scripts/test-frontend.sh # Run all tests
./scripts/test-frontend.sh --watch # Watch mode
./scripts/test-frontend.sh --ui # Open UI
test-rust.sh
Run Rust tests only.
./scripts/test-rust.sh # Run all tests
./scripts/test-rust.sh -- --nocapture # Show println! output
Android Scripts
build-android.sh
Build the Android APK.
./scripts/build-android.sh # Debug build
./scripts/build-android.sh release # Release build
deploy-android.sh
Install APK on connected Android device.
./scripts/deploy-android.sh # Deploy debug APK
./scripts/deploy-android.sh release # Deploy release APK
build-and-deploy.sh
Build and deploy in one command.
./scripts/build-and-deploy.sh # Build + deploy debug
./scripts/build-and-deploy.sh release # Build + deploy release
check-android.sh
Check Android development environment setup.
./scripts/check-android.sh
logcat.sh
View Android logcat filtered for the app.
./scripts/logcat.sh
Traceability & Documentation
extract-traces.ts
Extract requirement IDs (TRACES) from source code and generate a traceability matrix mapping requirements to implementation locations.
bun run traces # Generate markdown report
bun run traces:json # Generate JSON report
bun run traces:markdown # Save to docs/traceability.md
bun run traces:coverage # Coverage gate — exits non-zero below 50%
The script scans all TypeScript, Svelte, and Rust files (plus scripts/)
looking for TRACES: comments and generates a comprehensive mapping of:
- Which code files implement which requirements
- Line numbers and code context
- Coverage summary by requirement type (UR, IR, DR, JA)
bun run traces:coverage is the supported way to check requirement coverage
locally — it runs the same computation CI does. Coverage denominators are
derived from docs/requirements.md at run time; they are never hardcoded. An ID
that appears in a TRACES: comment but is not defined in requirements.md is
reported as orphaned and does not count toward coverage (see DR-093).
Removed:
check-req-coverage.sh,check-test-coverage.sh, andfind-req-implementations.shwere deleted in July 2026. They read an undocumented@req:tag convention parallel toTRACES:, greppedsrc-tauri/unscoped (hanging on ~40 GB oftarget/artifacts), and in one case reported "all requirements implemented" from an empty result set.extract-traces.tsis the single source of truth for requirement coverage. See docs/specs/req-coverage-script-removal.md.
Example TRACES comment in code:
// TRACES: UR-005, UR-026 | DR-029
function handlePlayback() { ... }
See docs/traceability.md for the latest generated mapping.
CI/CD Validation
The traceability system is integrated with Gitea Actions CI/CD:
- Automatically validates TRACES on every push and pull request
- Enforces minimum 50% coverage threshold
- Warns if new code lacks TRACES comments
- Generates traceability reports automatically
For details, see:
- Traceability CI Guide - Full CI/CD documentation
- TRACES Quick Reference - Quick guide for adding TRACES
Utility Scripts
clean.sh
Clean all build artifacts.
./scripts/clean.sh
NPM Script Aliases
You can also run these via npm/bun:
bun run test:all # All tests
bun run test:rust # Rust tests
bun run android:build # Build Android APK
bun run android:deploy # Deploy to device
bun run android:dev # Build + deploy debug
bun run android:check # Check environment
bun run clean # Clean artifacts