mediavocab 1.3.0a3

Reference vocabulary and pydantic data model for media cataloguing.

mediavocab

Reference vocabulary and pydantic data model for cataloguing media works: movies, music, books, comics, games, podcasts, audio dramas, radio, sound effects, and procedural ambient streams — all in a single shared schema.

mediavocab is a foundation library. It defines the vocabulary (enums, genre constants) and the structural models (Work, Release, Entity, Credit, Membership, Appearance). Application logic — provider clients, resolvers, playback, UI — lives outside this package.

Install

pip install mediavocab

The only runtime dependency is pydantic>=2. The taxonomy/ and text/ subpackages import nothing beyond the stdlib, so they are safe to vendor in minimal environments.

Quickstart

from mediavocab import (
    Credit, CreditSection, EntityKind, EntityRef, MediaType,
    RelationRole, Release, VariantKind, Work, WorkRelation, WorkRelationKind,
)
from mediavocab.text import score, work_hash

# Each cut is its own Work (spec §3.4); director's cut links via WorkRelation.
theatrical = Work(
    title="Blade Runner", media_type=MediaType.MOVIE,
    year=1982, runtime=117 * 60.0, production_country="US",
    variant_kind=VariantKind.THEATRICAL,
    credits=[Credit(
        entity=EntityRef(name="Ridley Scott", kind=EntityKind.PERSON),
        role="Director", relation_role=RelationRole.DIRECTOR,
        section=CreditSection.PRINCIPAL,
    )],
)
directors = Work(
    title="Blade Runner", media_type=MediaType.MOVIE,
    year=1992, runtime=116 * 60.0, production_country="US",
    variant_kind=VariantKind.DIRECTORS,
    relations=[WorkRelation(kind=WorkRelationKind.DERIVED_FROM, target=theatrical)],
)

# A Release manifests a Work — many formats, mirrors, packages per Work.
bluray = Release(work=theatrical, container="Blu-ray", region="US",
                 uri="file:///library/blade-runner.mkv")

print(work_hash(theatrical))            # stable SHA-256 identity hash
print(score(theatrical, theatrical))    # 1.0 (self-match)

More walked-through examples in examples/ covering albums, band lineups, radio stations, IoT device routing, work comparison, and the pipeline-sentinel NOT_MEDIA / CONTROL flow.

What's in the box

Module	Contents
mediavocab.taxonomy	MediaType (+ PIPELINE_SENTINELS), VariantKind, ReleasePackaging, EntityKind, OrganisationKind, RelationRole, CreditSection, MembershipKind, TemporalState, ReleaseStatus, StreamMode, WorkRelationKind, ReleaseRelationKind, ContentForm, ProgrammeFormat, AccessibilityKind, PlaybackType, plus GENRE_* string constants. Zero deps.
mediavocab.models	Work, Release, Appearance, Chapter, AccessibilityTrack, AvailabilityWindow, LocalizedTitle, WorkRelation, ReleaseRelation, Entity, EntityRef, Membership, Credit, ExternalIds, License, Signals. Pydantic v2.
mediavocab.text	Normalisation, fuzzy matching, work / release comparison and scoring, SHA-256 identity hashes (work_hash / release_hash), merge with MergeStrategy / IdentityConflict, title parser, content classifier, ISO 639 / 3166 / 8601 / ISBN helpers. Stdlib only.
mediavocab.helpers	Classifier predicates (is_not_media, is_device_entity, is_continuous_release), credit lookups (director, author, performers, filmography_of, episodes_of), and release availability / rights predicates (is_available, release_is_open, release_allows_commercial). Non-normative.

Design highlights

• A type earns its place by changing the schema (A1). SOUND_EFFECT, PROCEDURAL_AMBIENT, AUDIO_DRAMA, MUSIC_VIDEO, etc. each catalogue against different external databases or with different runtime tolerances.
• Devices are entities, not works (A3). EntityKind.DEVICE represents physical playback endpoints. The Work is still a RADIO/MOVIE/MUSIC; the device is how the consumer routes playback. A receiver-class device additionally has a Work counterpart for "turn on the radio" invocation.
• Pipeline sentinels never reach a canonical Work (T8). MediaType.GENERIC, NOT_MEDIA, and CONTROL live on the resolver bag and are rejected at Work construction.
• Each cut is its own Work (§3.4). Theatrical, director's, extended, remaster, fanedit — restructurings of the canonical artefact each get a new Work linked by WorkRelation. ReleasePackaging (deluxe / reissue / box-set / bootleg) is independent — that's how an edition ships.
• PlaybackType is derived from MediaType (A6). AUDIO / VIDEO / PAGED / INTERACTIVE routes resolver dispatch by playback intent. Never persisted on Work or Release. Declare playback_type: ClassVar[Set[PlaybackType]] on each provider.
• Genre is a free List[str] with canonical spellings in mediavocab.taxonomy.genre. ASMR, ambient, anime, adult, etc. are genre tags applied across multiple media types — not types of their own (T1). Programme formats (documentary, concert, talk show) live in ProgrammeFormat, not in genres.

See docs/ for full reference and pattern guides.

Workspace position

mediavocab sits at the bottom of the stack. Every other package in this workspace depends on it:

                          mediavocab
                              ▲
        ┌───────────┬─────────┼─────────┬───────────┐
        │           │         │         │           │
      tutubo   pyfanedit   pymetal   pyo*…       py_bandcamp / nuvem-de-som
        ▲           ▲         ▲                       ▲
        └────────┬──┴─────────┴───────────────────────┘
                 │
              metadatarr  ◄── canonical resolver, ships every provider above
                 ▲
                 │
           media-archivist  ◄── source-DB orchestrator + sidecars + CLI/server

• mediavocab: vocabulary + structural models (this package).
• tutubo, pyfanedit, pymetal, py_bandcamp, nuvem_de_som, radiosoma, tunein, audiobooker: API clients / scrapers. Each emits mediavocab.Work / Release / Entity directly.
• metadatarr: cross-source resolver framework. Bundles every first-party scraper as a hard runtime dep (no extras juggling) and ships ~24 providers under metadatarr.resolve.providers.
• media-archivist: local source-DB indexer / canonicalizer / CLI / web server. Consumes metadatarr's resolver.

Testing

pip install -e ".[test]"
pytest -q

License

Apache 2.0. See LICENSE.