Per sub-project-2 plan Task 4 / spec §5.1. derive_tags(Probe) -> Tags with the
attached_pic cover-art guard so an art-bearing audio file stays mode=audio.
Duration falls back to the longest stream when format.duration is absent, and
rounds half-up so 12.5s -> 13s (Python's round() would give 12 via banker's
rounding) to match the spec's stated behavior.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Per sub-project-2 plan Task 3 / spec §5.1. Parses ffprobe JSON into a Probe
(streams + format); subprocess runner injectable so tests never shell out.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Per sub-project-2 plan Task 2 / spec §3. Purely additive to hef.catalog;
no existing symbol changes. validate_catalog runs per-record validate() then
asserts id uniqueness; index_by_id gives by-id lookup the player also wants.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Per sub-project-2 plan Task 1. Adds tools/ to setuptools packages,
gitignores media/, and a minimal injectable urllib HTTP client.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>