Remove the activity-wide descriptor failure flag and centralize direct-read/fallback handling. A pipe, revoked URI, or malformed file no longer disables direct metadata reads for subsequent files.
Test fallback isolation, descriptor cleanup, and a successful direct read after a failure.
Parse tags and artwork with one bounded frame walker and use a combined MP3 scan on cold cover caches. Skip artwork for tag-only reads and skip further pictures after finding a usable cover. Preserve earlier fields when trailing frames are malformed.
Cover ID3 versions, extended headers, unsynchronization, malformed data, and large artwork with byte-read assertions.
Remove the unreachable live streaming and DASH manifest call graph, its state, result model, enum, and exclusive imports. Remove the uncalled availability probe while retaining active file conversion and decryption paths.
Give every subscription its own cursor, payload, and worker queue so an old blocked waiter cannot advance a replacement listener. Serialize lifecycle handling and guard cancellation.
Add a restart regression with an injected waiter; verified with Thread Sanitizer.
Apply resolved metadata with copyWith and retain the existing field precedence. Keep UPC, preview URLs, and source-only fields when enrichment updates other tags.
Extract the pure merge helpers and add regression tests for field preservation.
Reuse the conversion output lifecycle for M4A conversion and native FLAC suffix correction. Reserve destination names atomically, reject empty output, and clean partial files while preserving the input on failure.
Add regressions for existing outputs, concurrent conversions, staging, and cleanup.
zarzet