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sessions

package
v0.3.0 Latest Latest
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 Go to latest Published: Nov 1, 2026 License: GPL-3.0 Imports: 41 Imported by: 0

Documentation

Overview

Package sessions owns protocol-independent playback sessions.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func BindEvents 

func BindEvents(events frontend.Subscriber, protocol frontend.Protocol) frontend.Subscriber

BindEvents applies the originating surface filter to user-data events.

func BindSurface 

func BindSurface(b frontend.Sessions, protocol frontend.Protocol) frontend.Sessions

BindSurface prevents an adapter from submitting another surface's identity.

func Decide 

func Decide(playback core.Playback, transcoder core.Transcoder, r DecisionRequest) (core.Decision, error)

Decide preserves the playback remux override for on-demand sources and stops the source when a required converter is unavailable.

func Estimate 

func Estimate(ctx context.Context, playback Estimator, viewer *core.Viewer, clientID string, title *core.Title, caps func() core.ClientCaps) (core.MediaInfo, *core.PlaySession)

Estimate returns an existing source's media information or a virtual estimate. It never prepares or resolves a release.

func HLSDecision 

func HLSDecision(dec core.Decision, allowDirect bool, reconsider func() core.Decision, forcedStream func(core.Decision) core.Decision) core.Decision

HLSDecision applies the v39 start-time decision rules. A client may reject direct play after its initial decision; in that case reconsider is called before selecting the segmented output. forcedStream, when supplied, applies adapter output constraints only when a still-direct decision is forced to HLS.

func NewLANLazyStreams 

func NewLANLazyStreams(db *sql.DB, broker *Broker, clientIP func(*http.Request) (netip.Addr, bool), viewer func(context.Context, *http.Request) (*core.Viewer, error), ttl time.Duration) (frontend.LANLazyStreams, error)

NewLANLazyStreams derives authority from host-owned peer and viewer checks. Capabilities are bound to that viewer, canonical peer device and item.

func NewLazyStreams 

func NewLazyStreams(db *sql.DB, b *Broker, protocol frontend.Protocol, grants LazyGrants, ttl time.Duration, remote func(*http.Request) bool) (frontend.LazyStreams, error)

NewLazyStreams creates a surface-bound durable, reusable capability issuer. Capabilities expire after at most one hour of inactivity and are revalidated on every request.

func NewSourceOffers 

func NewSourceOffers(db *sql.DB, b *Broker, protocol frontend.Protocol) (frontend.SourceOffers, error)

func NewVersionHandles 

func NewVersionHandles(db *sql.DB, b *Broker, protocol frontend.Protocol) (frontend.VersionHandles, error)

NewVersionHandles creates a surface-bound, durable version identifier map. Handles are not credentials and all lookups recheck viewer and title policy.

func NotifyTranscodeActivity 

func NotifyTranscodeActivity(transcoder core.Transcoder, id, state string)

NotifyTranscodeActivity forwards timeline state to an active output. It is deliberately a no-op for transcoders and outputs without this capability.

func PlexStreamSlot 

func PlexStreamSlot(index int, info core.StreamInfo) string

PlexStreamSlot is the stable identity of a stream within a title. A subtitle's id is its language, codec, and source (the sidecar URL, or embedded), not its position in a variant's stream list. Play Version reorders those lists as candidates warm, and the same part id can name a different release; the viewer's choice has to keep naming the same track.

func PlexStreamsMatch 

func PlexStreamsMatch(a, b core.StreamInfo) bool

PlexStreamsMatch reports whether two renders are the same visible stream.

func PlexWireID 

func PlexWireID(key core.RatingKey, slot string) int64

PlexWireID is the positive int32-range id Plex clients already parse. Offer rows use it directly and are not stream bindings.

func RecordProgress 

func RecordProgress(ctx context.Context, writer ProgressWriter, viewer int64, key core.RatingKey, position, duration time.Duration, state string) error

RecordProgress preserves the existing treatment of extras, which do not enter the viewer's library watch history.

func Recover 

func Recover[R any](ctx context.Context, table *BindingTable[R], playback any, id, inputURL string, at time.Duration) error

Recover maps an encoder identifier to the source that owns it. Playback verifies the input generation before it attempts failover.

func TranscodeFor 

func TranscodeFor[R any](table *BindingTable[R], transcoder core.Transcoder, playID string) (core.HLSSession, bool)

TranscodeFor finds the running encoder fed by a playback source.

func WithPlexAdmission 

func WithPlexAdmission(ctx context.Context, admit func(context.Context) (PlexAdmission, error)) context.Context

WithPlexAdmission attaches the prepared source for one Plex Plan call.

func WithPlexServe 

func WithPlexServe(ctx context.Context, remote bool, format string) context.Context

WithPlexServe carries the request's remote bit and subtitle format into ResolvePlexStream and OpenPlexSidecar without changing their signatures.

Types

type Binding 

type Binding[R any] struct {
	ID          string // client "session" param
	StreamToken string // independent random capability; never a client-chosen ID
	PlayID      string // core.PlaySession.ID
	PlaybackID  string // explicit X-Plex-Session-IDentifier owning this encoder
	UserID      int64
	ClientID    string
	Key         core.RatingKey
	Requested   R // original Decision/start inputs, before policy refinement
	Decision    core.Decision
	Info        core.MediaInfo
	Subtitle    int // selected Subtitle's position in Info, -1 = none
	Caps        core.ClientCaps
	Opts        core.DecideOptions
	Offset      time.Duration
	Started     bool // StartHLS ran
	UpdatedAt   time.Time
	// A failed Decision for this binding (FailKey, FailErr at FailedAt):
	// the start request that follows it answers with the same error at
	// once instead of resolving again. One-shot and short-lived.
	FailKey  core.RatingKey
	FailErr  error
	FailedAt time.Time
}

type BindingTable 

type BindingTable[R any] struct {
	// contains filtered or unexported fields
}

func NewBindingTable 

func NewBindingTable[R any]() *BindingTable[R]

func (*BindingTable[R]) ByPlayID 

func (t *BindingTable[R]) ByPlayID(PlayID string) []string

ByPlayID returns the transcode session ids fed by a playback session.

func (*BindingTable[R]) Claim 

func (t *BindingTable[R]) Claim(ID string, UserID int64, ClientID string, now time.Time) bool

Claim reserves a client-chosen ID before any playback/transcoder work. A different viewer or device cannot replace, reuse, stop, or probe that binding.

func (*BindingTable[R]) Expire 

func (t *BindingTable[R]) Expire(now time.Time, ttl time.Duration) []string

func (*BindingTable[R]) Fail 

func (t *BindingTable[R]) Fail(ID string, UserID int64, ClientID string, Key core.RatingKey, err error, now time.Time)

Fail records a failed Decision on the binding the Decision claimed. A binding owned by another viewer or device is left alone.

func (*BindingTable[R]) ForClient 

func (t *BindingTable[R]) ForClient(UserID int64, ClientID string, Key core.RatingKey) []string

ForClient lists the transcode sessions of a client for a title.

func (*BindingTable[R]) Get 

func (t *BindingTable[R]) Get(ID string) (*Binding[R], bool)

func (*BindingTable[R]) IDs 

func (t *BindingTable[R]) IDs() []string

IDs lists every binding this table still holds.

func (*BindingTable[R]) Put 

func (t *BindingTable[R]) Put(e *Binding[R])

func (*BindingTable[R]) Remove 

func (t *BindingTable[R]) Remove(ID string)

func (*BindingTable[R]) TakeFailure 

func (t *BindingTable[R]) TakeFailure(ID string, UserID int64, Key core.RatingKey, now time.Time) (error, bool)

TakeFailure returns and clears a recent failed Decision for this viewer's binding and title.

func (*BindingTable[R]) Touch 

func (t *BindingTable[R]) Touch(ID string, now time.Time)

type Broker 

type Broker struct {
	// contains filtered or unexported fields
}

Broker coordinates playback admission for every protocol, including Plex.

func NewBroker 

func NewBroker(d BrokerDeps) (*Broker, error)

func UnderlyingBroker 

func UnderlyingBroker(s frontend.Sessions) *Broker

UnderlyingBroker unwraps a surface binding to the broker that stores Plex activities. A non-broker Sessions value has none.

func (*Broker) BindPlexStream 

func (b *Broker) BindPlexStream(_ context.Context, access frontend.SessionAccess, binding PlexStreamBinding) (int64, error)

BindPlexStream assigns the visible id. WireID on the binding must be zero. Library metadata calls this before a viewer is known, so it does not authorize. Resolve and Open do.

func (*Broker) Capabilities 

func (b *Broker) Capabilities(ctx context.Context, a frontend.SessionAccess) (frontend.SessionCapabilities, error)

func (*Broker) Close 

func (b *Broker) Close(ctx context.Context)

Close stops local broker sessions and prevents new plans or opens.

func (*Broker) Command 

func (b *Broker) Command(ctx context.Context, actor *core.Viewer, id string, cmd frontend.Command) error

Command targets one authenticated viewer's session. An active, non-delegated owner may target any viewer's session.

func (*Broker) ConfirmPlexAdmission 

func (b *Broker) ConfirmPlexAdmission(ctx context.Context, v *core.Viewer, remote bool) (*core.Viewer, error)

ConfirmPlexAdmission is the fenced policy check a Plex plan uses. planPlexAdmission already calls confirm with the request caps. This is the same check when the caller has only the remote bit.

func (*Broker) DetailPlan 

func (b *Broker) DetailPlan(ctx context.Context, req frontend.PlanRequest) (frontend.PlayPlan, error)

DetailPlan is for a single explicitly requested playable item, never a listing. The flight is scoped to the authenticated request and bounded. An informational result cannot be opened as a session by the caller.

func (*Broker) EnsurePlexActivity 

func (b *Broker) EnsurePlexActivity(id string, key int)

func (*Broker) Events 

func (b *Broker) Events(ctx context.Context, scope frontend.EventScope) (<-chan frontend.Event, error)

func (*Broker) ExpirePlexActivities 

func (b *Broker) ExpirePlexActivities(now time.Time, ttl time.Duration) []PlexActivity

func (*Broker) HasBinding 

func (b *Broker) HasBinding(id string) bool

HasBinding reports whether this broker owns an encoder ID.

func (*Broker) HasPlexActivity 

func (b *Broker) HasPlexActivity(id string) bool

func (*Broker) ListPlexActivities 

func (b *Broker) ListPlexActivities() []PlexActivity

func (*Broker) Markers 

func (b *Broker) Markers(ctx context.Context, access frontend.SessionAccess, id string) (frontend.SessionMarkers, error)

Markers never borrows title-only or duration-only marker caches. It requires a complete provider result for the session's exact current source revision.

func (*Broker) MatchDetailSession 

func (b *Broker) MatchDetailSession(ctx context.Context, scope frontend.VersionScope, handle, sessionID string) error

MatchDetailSession authorizes an existing session only when it is pinned to the offered source and the authenticated viewer/device/surface still match.

func (*Broker) NotePlexEncoder 

func (b *Broker) NotePlexEncoder(id string, format frontend.StreamFormat, decision core.Decision, offset time.Duration)

NotePlexEncoder records that the Plex adapter started ffmpeg under the client transcode id, which is also the broker session id.

func (*Broker) Open 

func (b *Broker) Open(ctx context.Context, req frontend.OpenRequest) (frontend.Session, error)

func (*Broker) OpenPlexSidecar 

func (b *Broker) OpenPlexSidecar(ctx context.Context, access frontend.SessionAccess, receipt auth.Acceptance, wireID int64) (io.ReadCloser, core.StreamInfo, error)

OpenPlexSidecar returns an external sidecar only after the acceptance, fenced policy, stream binding, and session agree. Failure returns no reader.

func (*Broker) Plan 

func (b *Broker) Plan(ctx context.Context, req frontend.PlanRequest) (frontend.PlayPlan, error)

func (*Broker) PlexSessionForPlayback 

func (b *Broker) PlexSessionForPlayback(ctx context.Context, a frontend.SessionAccess, item frontend.RatingKey, playbackID, transcodeID string) (string, error)

PlexSessionForPlayback resolves the broker session for a Plex timeline. A client transcode id wins. Otherwise the playback header selects the newest match. An empty header matches only when exactly one session exists.

func (*Broker) PlexSessionForSource 

func (b *Broker) PlexSessionForSource(ctx context.Context, a frontend.SessionAccess, item frontend.RatingKey, playID string) (string, error)

PlexSessionForSource is the broker session that owns a prepared source for this viewer and item. The newest match wins when more than one remains.

func (*Broker) PlexSessionSource 

func (b *Broker) PlexSessionSource(id string) (string, bool)

PlexSessionSource is the playback source owned by a published Plex session.

func (*Broker) Recover 

func (b *Broker) Recover(ctx context.Context, id, url string, at time.Duration) error

func (*Broker) RemovePlexActivity 

func (b *Broker) RemovePlexActivity(id string) (PlexActivity, bool)

func (*Broker) Report 

func (b *Broker) Report(ctx context.Context, a frontend.SessionAccess, id string, t frontend.Timeline) error

func (*Broker) ReportItemProgress 

func (b *Broker) ReportItemProgress(ctx context.Context, a frontend.SessionAccess, item core.RatingKey, t frontend.Timeline) error

ReportItemProgress records a Jellyfin or Emby timeline that names an item instead of a broker session.

func (*Broker) ReportProgress 

func (b *Broker) ReportProgress(ctx context.Context, a frontend.SessionAccess, item core.RatingKey, t frontend.Timeline) error

ReportProgress records a Plex timeline that has no playback source. It does not prepare or stop one.

func (*Broker) ReportSample 

func (b *Broker) ReportSample(ctx context.Context, a frontend.SessionAccess, id string, sample frontend.ProgressSample) (frontend.ReportOutcome, error)

ReportSample uses the same policy and ownership gate as ordinary reporting, but requires a synchronous receipt writer instead of the availability outbox.

func (*Broker) ResolveDetailSource 

func (b *Broker) ResolveDetailSource(ctx context.Context, scope frontend.VersionScope, handle string) (frontend.DetailSourceTarget, error)

func (*Broker) ResolvePlexStream 

func (b *Broker) ResolvePlexStream(ctx context.Context, access frontend.SessionAccess, wireID int64) (PlexStreamBinding, error)

ResolvePlexStream returns a bound stream. An unknown id is ErrNotFound. A viewer who may not play is ErrUnauthorized, not a miss.

func (*Broker) ServeMedia 

func (b *Broker) ServeMedia(w http.ResponseWriter, r *http.Request)

ServeMedia validates a session-scoped capability on every request.

func (*Broker) ServeMediaAccess 

func (b *Broker) ServeMediaAccess(w http.ResponseWriter, r *http.Request, a frontend.SessionAccess)

ServeMediaAccess additionally binds the grant to the authenticated device.

func (*Broker) ServeMediaFor 

func (b *Broker) ServeMediaFor(protocol frontend.Protocol, w http.ResponseWriter, r *http.Request)

ServeMediaFor binds a mounted handler to its protocol surface.

func (*Broker) ServeSessionMedia 

func (b *Broker) ServeSessionMedia(w http.ResponseWriter, r *http.Request, a frontend.SessionAccess, sessionID, resource string)

ServeSessionMedia serves one session resource for a device that already proved it owns the session. The grant stays on the internal path; callers must not copy it into a client URL.

func (*Broker) Sessions 

func (b *Broker) Sessions(ctx context.Context, a frontend.SessionAccess) ([]frontend.Session, error)

func (*Broker) StartStream 

func (b *Broker) StartStream(ctx context.Context, a frontend.SessionAccess, id string, req frontend.StreamRequest) (string, error)

func (*Broker) Stop 

func (b *Broker) Stop(ctx context.Context, a frontend.SessionAccess, id string) error

func (*Broker) StopPlayback 

func (b *Broker) StopPlayback(ctx context.Context, playID string) bool

StopPlayback stops every local broker session fed by a source ID.

func (*Broker) StopProtocol 

func (b *Broker) StopProtocol(ctx context.Context, protocol frontend.Protocol) error

StopProtocol releases every local session for one mounted surface.

func (*Broker) SubtitleURL 

func (b *Broker) SubtitleURL(ctx context.Context, a frontend.SessionAccess, id string, index int, format string) (string, error)

SubtitleURL authorizes a subtitle by the session's probed stream index. The returned URL contains only the scoped stream capability.

func (*Broker) TranscodeFor 

func (b *Broker) TranscodeFor(_ context.Context, id string) (core.HLSSession, bool)

func (*Broker) TrickplayOffer 

func (b *Broker) TrickplayOffer(ctx context.Context, a frontend.SessionAccess, item core.RatingKey) (frontend.TrickplayOffer, bool)

TrickplayOffer revalidates the viewer, item, version, and source generation before advertising tiles. A false offer leaves the Jellyfin map empty.

func (*Broker) TrickplaySheet 

func (b *Broker) TrickplaySheet(ctx context.Context, a frontend.SessionAccess, item core.RatingKey, index int) ([]byte, error)

TrickplaySheet composes one JPEG grid from the borrowed provider's frames.

func (*Broker) UpdateCapabilities 

func (b *Broker) UpdateCapabilities(ctx context.Context, a frontend.SessionAccess, c frontend.SessionCapabilities) error

UpdateCapabilities stores declarations for the authenticated device only. URL metadata is never dereferenced by the broker.

func (*Broker) UpsertPlexActivity 

func (b *Broker) UpsertPlexActivity(id string, fn func(*PlexActivity)) PlexActivity

type BrokerDeps 

type BrokerDeps struct {
	Coordination *Coordination
	// MaxPendingStarts bounds active or waiting neutral stream starts.
	// Zero selects the default; the broker rejects values above 4096.
	MaxPendingStarts int
	DB               *sql.DB
	Cluster          clusterbus.Node
	Live             LiveBackend
	Variants         func(context.Context, *core.Viewer, *core.Title, core.ClientCaps) ([]core.ReleaseVariant, error)
	SelectTracks     func(context.Context, *core.Viewer, *core.Title, core.MediaInfo, core.DecideOptions, bool, bool) (core.DecideOptions, error)
	// SelectScopedTracks receives the authenticated device as well. If present,
	// it replaces SelectTracks and must preserve the unscoped behavior.
	SelectScopedTracks func(context.Context, *core.Viewer, core.Device, *core.Title, core.MediaInfo, core.DecideOptions, bool, bool) (core.DecideOptions, error)
	Lookup             func(context.Context, *core.Viewer, core.Device, core.RatingKey) (*core.Title, error)
	// MediaLookup checks current title policy using local facts only; it must
	// never resolve a release or fetch remote metadata on a segment request.
	// If nil, Lookup must satisfy the same requirement.
	MediaLookup   func(context.Context, *core.Viewer, core.Device, core.RatingKey) (*core.Title, error)
	Playback      core.Playback
	Transcoder    core.Transcoder
	Progress      ProgressWriter
	SourceHistory SourceHistoryWriter
	ActiveViewer  func(context.Context, int64) (*core.Viewer, error)
	CanPlay       func(*core.Viewer, bool, time.Time) bool
	// FreshPlay re-reads fenced membership and safety policy. A returned viewer
	// replaces the cached one for the rest of the call. ErrPolicyUnconfirmed
	// keeps the cached CanPlay decision for an unrestricted viewer.
	FreshPlay func(context.Context, *core.Viewer, bool, time.Time) (*core.Viewer, error)
	// ReceiptCurrent rechecks the acceptance Plex stored for this request.
	ReceiptCurrent     func(context.Context, auth.Acceptance) error
	BitrateLimit       func(*core.Viewer) int
	RemoteBitrateLimit func() int
	OnTimeline         func(*core.Viewer, core.RatingKey, time.Duration, time.Duration, string)
	Events             *EventBus
	OnEventError       func(error)
	// OnProfileDiagnostic is an optional fixture hook. Values are closed enums
	// only; the callback receives no media, identity or client-supplied data.
	OnProfileDiagnostic func(ProfileDiagnostic)
	// SourceMarkers returns a complete marker set for the exact source revision.
	SourceMarkers    func(context.Context, *core.Viewer, core.RatingKey, string, core.MediaInfo) ([]frontend.Marker, bool, error)
	OpenSubtitle     func(string, string) (io.ReadCloser, string, error)
	OpenSubtitleFrom func(string, string, string) (io.ReadCloser, string, error)
	ExtractSubtitle  func(context.Context, string, int, string, io.Writer) error
	// Trickplay is borrowed from the runtime owner (internal/app/trickplay_owner.go).
	// It is the same provider Plex uses. The broker releases its own leases;
	// only the runtime owner may Close the provider.
	Trickplay core.TrickplayProvider
	Now       func() time.Time
}

BrokerDeps are the explicit dependencies shared by all protocol surfaces.

type Coordination 

type Coordination struct {
	Owners *PlaybackOwners
	Gates  *Lifecycle
}

Coordination holds the v39 playback owner history and lifecycle gates shared by every protocol adapter in one Ether process.

func NewCoordination 

func NewCoordination() *Coordination

type DecisionRequest 

type DecisionRequest struct {
	Session              *core.PlaySession
	Caps                 core.ClientCaps
	Options              core.DecideOptions
	PreferRemux          bool
	Protocol             string
	RemoteMaxBitrateKbps int
	// PreserveSourceOnFailure lets a broker avoid stopping a reused source
	// when an attempted decision cannot be served without a transcoder.
	PreserveSourceOnFailure bool
}

DecisionRequest contains the source and client inputs for a playback decision. PreferRemux is the adapter's signal that source changes need refreshed container headers; the source and requested direct-stream mode still determine whether the override applies.

type Estimator 

type Estimator interface {
	Estimate(context.Context, *core.Title, core.ClientCaps) core.MediaInfo
	SessionFor(int64, string, core.RatingKey) (*core.PlaySession, bool)
}

Estimator is the non-resolving playback surface for detail pages.

type EventBus 

type EventBus struct {
	// contains filtered or unexported fields
}

EventBus distributes viewer-scoped events locally and across cluster nodes. ActiveViewer must return the current active viewer, not a cached credential.

func NewEventBus 

func NewEventBus(bus clusterbus.Bus, activeViewer func(context.Context, int64) (*core.Viewer, error)) *EventBus

NewEventBus subscribes to cluster events when bus is non-nil. Call Close when the application shuts down.

func (*EventBus) Close 

func (b *EventBus) Close()

func (*EventBus) Publish 

func (b *EventBus) Publish(ctx context.Context, event frontend.Event) error

Publish delivers locally and sends an origin-tagged event to other nodes.

func (*EventBus) Subscribe 

func (b *EventBus) Subscribe(ctx context.Context, scope frontend.EventScope) (<-chan frontend.Event, error)

Subscribe ends on cancellation, revoked access, bus shutdown or a slow subscriber overflowing its buffer. A closed channel tells clients to resync.

type LazyGrants 

type LazyGrants interface {
	GrantReference(context.Context, string, string) (string, *core.Viewer, error)
	ValidateGrantReference(context.Context, string, string, int64) error
}

LazyGrants authenticates an issuing surface credential and rechecks the non-secret grant reference without extending its lifetime.

type Lifecycle 

type Lifecycle = playbackLifecycle

Lifecycle owns the v39 owner and encoder gates.

func NewLifecycle 

func NewLifecycle() *Lifecycle

type LiveBackend 

type LiveBackend interface {
	Allowed(context.Context, *core.Viewer, string) error
	Tune(context.Context, *core.Viewer, string, core.ClientCaps, string) (string, error)
	Serve(http.ResponseWriter, *http.Request, *core.Viewer, string, string, string)
	Stop(context.Context, *core.Viewer, string) error
}

LiveBackend adapts the existing channel playout service. Serve receives a grant-validated request and a path relative to the scoped live stream.

type LiveMediaBackend 

type LiveMediaBackend interface {
	LiveBackend
	TuneMedia(context.Context, *core.Viewer, string, core.ClientCaps, string) (string, *core.MediaInfo, error)
}

LiveMediaBackend optionally returns the live session's probed or output MediaInfo.

type PlaybackOwners 

type PlaybackOwners = playbackOwners

PlaybackOwners retains the v39 playback handoff and supersession rules.

func NewPlaybackOwners 

func NewPlaybackOwners() *PlaybackOwners

type PlexActivity 

type PlexActivity struct {
	ID                                                     string
	SessionKey                                             int
	User                                                   core.User
	ClientID, Product, Version, Platform, PlatformVersion  string
	Device, DeviceName, Model, Vendor, SessionID, RemoteIP string
	Remote                                                 bool
	Key                                                    core.RatingKey
	State                                                  string
	Offset, Duration                                       time.Duration
	PlayQueueItemID                                        int64
	TranscodeID                                            string
	StartedAt, UpdatedAt                                   time.Time
}

PlexActivity is one Plex client's playback as the session list shows it. The broker is the only store. Cluster rows for these activities use protocol plex.

type PlexAdmission 

type PlexAdmission struct {
	Source               *core.PlaySession
	Media                core.MediaInfo
	Caps                 core.ClientCaps
	Options              core.DecideOptions
	PreferRemux          bool
	Protocol             string
	RemoteMaxBitrateKbps int
}

PlexAdmission is the source and the version and track selections for one Plex plan. Plan makes the direct, remux, or transcode decision from them. Open publishes that decision. The adapter renders it and does not decide again.

type PlexStreamAPI 

type PlexStreamAPI interface {
	BindPlexStream(context.Context, frontend.SessionAccess, PlexStreamBinding) (int64, error)
	ResolvePlexStream(context.Context, frontend.SessionAccess, int64) (PlexStreamBinding, error)
	OpenPlexSidecar(context.Context, frontend.SessionAccess, auth.Acceptance, int64) (io.ReadCloser, core.StreamInfo, error)
}

PlexStreamAPI is the visible-id and sidecar surface Plex calls.

func BindPlexStreams 

func BindPlexStreams(b *Broker) PlexStreamAPI

BindPlexStreams is BindSurface for the Plex stream methods. The returned value rejects any access whose protocol is not plex.

type PlexStreamBinding 

type PlexStreamBinding struct {
	WireID    int64
	SessionID string
	Key       core.RatingKey
	Index     int
	Info      core.StreamInfo
}

PlexStreamBinding is one Plex-visible stream id. WireID is zero on bind; BindPlexStream assigns it. SessionID is empty for library metadata and is the broker session id after Open.

type PlexStreamTable 

type PlexStreamTable struct {
	// contains filtered or unexported fields
}

PlexStreamTable is the visible-id map. Plex offer ids are not stored here.

func NewPlexStreamTable 

func NewPlexStreamTable() *PlexStreamTable

NewPlexStreamTable is the visible-id map used by the broker and by Plex fixtures that have no broker mounted.

func (*PlexStreamTable) Bind 

func (t *PlexStreamTable) Bind(binding PlexStreamBinding) (int64, error)

Bind assigns or reuses the wire id for this slot. It does not authorize.

func (*PlexStreamTable) Lookup 

func (t *PlexStreamTable) Lookup(id int64) (PlexStreamBinding, bool)

Lookup reports the binding. False means the id was never bound.

type ProfileDiagnostic 

type ProfileDiagnostic string

ProfileDiagnostic is a redacted reason emitted only to an explicitly installed diagnostic hook. It never includes client profile values. 

const (
	ProfileRequiredConditionUnknown ProfileDiagnostic = "required_condition_unknown"
	ProfileDirectRejected           ProfileDiagnostic = "direct_rejected"
	ProfileDeliveryRejected         ProfileDiagnostic = "delivery_rejected"
	ProfileFallbackTranscode        ProfileDiagnostic = "fallback_transcode"
	ProfileFallbackRemux            ProfileDiagnostic = "fallback_remux"
	ProfileNoDelivery               ProfileDiagnostic = "no_delivery"
)

type ProgressWriter 

type ProgressWriter interface {
	Progress(context.Context, int64, core.RatingKey, time.Duration, time.Duration, string) error
}

ProgressWriter persists the timeline after the caller has checked ownership.

type Selections 

type Selections[T any] struct {
	// contains filtered or unexported fields
}

Selections stores per-viewer track choices. The adapter owns the value shape and translates wire stream identifiers before updating a choice.

func NewSelections 

func NewSelections[T any]() *Selections[T]

func (*Selections[T]) Get 

func (s *Selections[T]) Get(viewer, item int64) T

func (*Selections[T]) Update 

func (s *Selections[T]) Update(viewer, item int64, fn func(*T))

type SourceHistoryWriter 

type SourceHistoryWriter interface {
	BeginSourceSession(context.Context) (int64, error)
	RecordLastSource(context.Context, int64, core.RatingKey, int64, int64, core.PlaybackSourceObservation) error
}

SourceHistoryWriter stores facts from accepted samples, ordered first by session epoch and then by the sample number assigned before persistence. Implementations must honor cancellation, including during transaction commit. The production state writer uses context-aware SQLite/PostgreSQL operations. Go cannot forcibly stop an implementation or driver that ignores context.

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