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05fd622968
Emby is Jellyfin's upstream ancestor and speaks a near-identical MediaBrowser
API, so the existing Jellyfin stack is parameterised by a `MediaBrowserDialect`
rather than forked. `JellyfinClient`, its auth service, endpoint discovery, LAN
discovery, and the add/edit connection screens all take the dialect and keep one
implementation; `MediaBackend.emby` and `ConnectionKind.emby` carry it through
the neutral models, the Drift `kind` discriminator, downloads, and caches.
Every divergence below was measured against a live Emby 4.9.5 server, not
inferred from documentation, and each is documented at its capability getter.
Jellyfin's request strings stay byte-identical so nothing about its behaviour
changes.
Routes and auth
- Emby only accepts the pre-10.9 user-scoped item routes (`/Users/{id}/Items/…`,
`/Users/{id}/PlayedItems/…`, `/Users/{id}/FavoriteItems/…`); the unprefixed
forms Jellyfin 10.11 added return 404.
- The API is also served under a legacy `/emby` prefix, and both dialects accept
the token as `X-Emby-Token` or `api_key=`.
- Emby answers only its own LAN discovery datagram ("who is EmbyServer?") and
ignores Jellyfin's; its default HTTPS port is 8920.
- No `/QuickConnect` route exists, so Quick Connect stays Jellyfin-only.
Row fields Emby withholds
- `ProductionYear`, `OfficialRating`, `PremiereDate` and `DateCreated` are absent
from list rows unless named in `Fields`, which would otherwise strip the year
and age-rating badge from every card in the app.
- `UserData.LastPlayedDate` never appears on a list row under `Fields=UserData`,
`EnableUserData=true` or the user-scoped `Ids=` form — only on the single-item
detail route, or when the Emby-specific `UserDataLastPlayedDate` token is
requested. Without it every recency-ordered surface silently degrades to
library-add time, and `JellyfinApiCache.applyWatchState` stamps
`DateTime.now()` on watched rows, so an offline watch-state pull would rewrite
the cached play time of everything it walked.
Continue Watching and Next Up
- Emby computes Next Up per series only: the library-wide `/Shows/NextUp` query
returns nothing under every parameter combination tried. The shelf is
therefore reconstructed from a played-episode recency scan plus one
`/Shows/NextUp?SeriesId=` per distinct series, bounded by a shared wall clock
that covers the scan as well — per-request timeouts cannot bound the pass
because `MediaServerHttpClient` times the connect and receive phases
independently. Rows are stamped with their series' newest play from the same
response that ordered them, so no per-series enrichment request is needed.
- `/Shows/NextUp` ignores `NextUpDateCutoff`, and no server-side played-date
filter exists to delegate to (`MinDatePlayed` and `MinDateLastPlayed` are
ignored; `MinDateLastSaved`, `MinDateCreated` and `MinPremiereDate` filter
unrelated dates), so the 365-day window is applied to the scanned dates.
- The resume route returns items with no saved position, including plain next
episodes, so the Emby resume leg reads from `/Items?Filters=IsResumable`.
- Emby is ahead of Jellyfin in one place: `/Users/{id}/Items/{id}/HideFromResume`
makes Continue Watching removal a real capability.
Everything else
- `/Sessions/Playing` and `/Sessions/Playing/Progress` reject a body with no
`PlaySessionId` (HTTP 400), so playback reporting always sends one.
- Passing any `MediaTypes` value to the playlist query returns an empty list.
- There is no aggregate `/Items/Filters` route; the four filter facets are
reassembled from `/Genres`, `/OfficialRatings`, `/Studios` and `/Tags`.
- Metadata writes take name-pair lists (`Genres: [{'Name': 'Action'}]`); the
plain string array is accepted and then silently discarded.
- Custom artwork uploads must be base64 text, not raw bytes — which was broken
for Jellyfin too and is fixed for both.
- Trickplay, media segments and lyrics 404 on Emby, so scrub previews are absent
and intro/credit markers fall back to chapter names.
Verified against a local Emby 4.9.5 and a Jellyfin 10.11.11 control server:
onboarding, browse, detail, playable stream URLs serving real bytes, subtitle
sidecars, watch-state write and restore, hubs, cross-server aggregation and
search across both backends simultaneously.
57 lines
2.1 KiB
Dart
57 lines
2.1 KiB
Dart
import '../utils/app_logger.dart';
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import 'media_browser_dialect.dart';
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/// Backend identifier for a media item, library, or server.
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///
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/// Used as a discriminator on neutral domain types so consumers can branch on
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/// backend-specific behavior (e.g. only Plex supports server-side play queues
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/// in v1) and so persisted records can round-trip the source of an item.
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enum MediaBackend {
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plex,
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jellyfin,
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emby;
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String get id => switch (this) {
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MediaBackend.plex => 'plex',
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MediaBackend.jellyfin => 'jellyfin',
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MediaBackend.emby => 'emby',
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};
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static MediaBackend fromId(String id) => switch (id) {
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'plex' => MediaBackend.plex,
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'jellyfin' => MediaBackend.jellyfin,
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'emby' => MediaBackend.emby,
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_ => throw ArgumentError('Unknown MediaBackend id: $id'),
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};
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/// Like [fromId] but tolerates legacy/missing values by defaulting to Plex.
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/// Used by JSON deserialization of cached offline data:
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/// - `null` is the pre-Jellyfin shape and silently defaults to Plex.
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/// - An unrecognized non-null id logs a warning and defaults to Plex; this
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/// surfaces corrupted cache rows or schema drift instead of silently
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/// misclassifying Jellyfin items as Plex.
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static MediaBackend fromString(String? id) {
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if (id != null && id != 'plex' && id != 'jellyfin' && id != 'emby') {
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appLogger.w('Unknown MediaBackend id "$id"; defaulting to plex');
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}
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return switch (id) {
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'jellyfin' => MediaBackend.jellyfin,
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'emby' => MediaBackend.emby,
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_ => MediaBackend.plex,
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};
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}
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/// True for backends served by the MediaBrowser HTTP API — Jellyfin and its
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/// Emby ancestor. They share one client stack, one query grammar and one set
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/// of DTO shapes, so behaviour keyed to "not Plex" should test this instead
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/// of comparing against [MediaBackend.jellyfin].
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bool get usesMediaBrowserApi => dialect != null;
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/// The MediaBrowser dialect this backend speaks, or `null` for Plex.
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MediaBrowserDialect? get dialect => switch (this) {
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MediaBackend.plex => null,
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MediaBackend.jellyfin => MediaBrowserDialect.jellyfin,
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MediaBackend.emby => MediaBrowserDialect.emby,
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};
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}
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