yattee/Model/Player/PlayerModel.swift

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Swift
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import AVKit
import CoreData
#if os(iOS)
import CoreMotion
#endif
import Defaults
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import Foundation
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import Logging
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import MediaPlayer
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import Siesta
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import SwiftUI
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import SwiftyJSON
#if !os(macOS)
import UIKit
#endif
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final class PlayerModel: ObservableObject {
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enum PlaybackMode: String, CaseIterable, Defaults.Serializable {
case queue, shuffle, loopOne, related
var systemImage: String {
switch self {
case .queue:
return "list.number"
case .shuffle:
return "shuffle"
case .loopOne:
return "repeat.1"
case .related:
return "infinity"
}
}
}
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static let availableRates: [Float] = [0.5, 0.67, 0.8, 1, 1.25, 1.5, 2]
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let logger = Logger(label: "stream.yattee.app")
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var avPlayerView = AppleAVPlayerView()
var playerItem: AVPlayerItem?
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var mpvPlayerView = MPVPlayerView()
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#if os(iOS)
static let presentingPlayerDefault = true
#else
static let presentingPlayerDefault = false
#endif
@Published var presentingPlayer = presentingPlayerDefault { didSet { handlePresentationChange() } }
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@Published var activeBackend = PlayerBackendType.mpv
var avPlayerBackend: AVPlayerBackend!
var mpvBackend: MPVBackend!
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#if !os(macOS)
var mpvController = MPVViewController()
#endif
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var backends: [PlayerBackend] {
[avPlayerBackend, mpvBackend]
}
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var backend: PlayerBackend! {
switch activeBackend {
case .mpv:
return mpvBackend
case .appleAVPlayer:
return avPlayerBackend
}
}
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@Published var playerSize: CGSize = .zero { didSet {
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#if !os(tvOS)
backend.setSize(playerSize.width, playerSize.height)
#endif
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}}
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@Published var aspectRatio = VideoPlayerView.defaultAspectRatio
@Published var stream: Stream?
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@Published var currentRate: Float = 1.0 { didSet { backend.setRate(currentRate) } }
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@Published var qualityProfileSelection: QualityProfile? { didSet { handleQualityProfileChange() }}
@Published var availableStreams = [Stream]() { didSet { handleAvailableStreamsChange() } }
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@Published var streamSelection: Stream? { didSet { rebuildTVMenu() } }
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@Published var queue = [PlayerQueueItem]() { didSet { handleQueueChange() } }
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@Published var currentItem: PlayerQueueItem! { didSet { handleCurrentItemChange() } }
@Published var videoBeingOpened: Video?
@Published var historyVideos = [Video]()
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@Published var preservedTime: CMTime?
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@Published var sponsorBlock = SponsorBlockAPI()
@Published var segmentRestorationTime: CMTime?
@Published var lastSkipped: Segment? { didSet { rebuildTVMenu() } }
@Published var restoredSegments = [Segment]()
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@Published var musicMode = false
@Published var playbackMode = PlaybackMode.queue { didSet { handlePlaybackModeChange() } }
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@Published var autoplayItem: PlayerQueueItem?
@Published var autoplayItemSource: Video?
@Published var advancing = false
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@Published var returnYouTubeDislike = ReturnYouTubeDislikeAPI()
@Published var isSeeking = false { didSet {
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backend.setNeedsNetworkStateUpdates(true)
}}
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#if os(iOS)
@Published var lockedOrientation: UIInterfaceOrientationMask?
@Default(.rotateToPortraitOnExitFullScreen) private var rotateToPortraitOnExitFullScreen
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#endif
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var accounts: AccountsModel
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var comments: CommentsModel
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var controls: PlayerControlsModel { didSet {
backends.forEach { backend in
var backend = backend
backend.controls = controls
backend.controls.player = self
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}
}}
var playerTime: PlayerTimeModel { didSet {
backends.forEach { backend in
var backend = backend
backend.playerTime = playerTime
backend.playerTime.player = self
}
}}
var networkState: NetworkStateModel { didSet {
backends.forEach { backend in
var backend = backend
backend.networkState = networkState
backend.networkState.player = self
}
}}
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var navigation: NavigationModel
var context: NSManagedObjectContext = PersistenceController.shared.container.viewContext
var backgroundContext = PersistenceController.shared.container.newBackgroundContext()
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#if os(tvOS)
static let fullScreenIsDefault = true
#else
static let fullScreenIsDefault = false
#endif
@Published var playingFullScreen = PlayerModel.fullScreenIsDefault
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@Published var playingInPictureInPicture = false
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var pipController: AVPictureInPictureController?
var pipDelegate = PiPDelegate()
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@Published var presentingErrorDetails = false
var playerError: Error? { didSet {
#if !os(tvOS)
if !playerError.isNil {
presentingErrorDetails = true
}
#endif
}}
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@Default(.qualityProfiles) var qualityProfiles
@Default(.pauseOnHidingPlayer) private var pauseOnHidingPlayer
@Default(.closePiPOnNavigation) var closePiPOnNavigation
@Default(.closePiPOnOpeningPlayer) var closePiPOnOpeningPlayer
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@Default(.resetWatchedStatusOnPlaying) var resetWatchedStatusOnPlaying
#if !os(macOS)
@Default(.closePiPAndOpenPlayerOnEnteringForeground) var closePiPAndOpenPlayerOnEnteringForeground
@Default(.closePlayerOnItemClose) private var closePlayerOnItemClose
#endif
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private var currentArtwork: MPMediaItemArtwork?
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#if !os(macOS)
var playerLayerView: PlayerLayerView!
#endif
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var onPresentPlayer: (() -> Void)?
private var remoteCommandCenterConfigured = false
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init(
accounts: AccountsModel = AccountsModel(),
comments: CommentsModel = CommentsModel(),
controls: PlayerControlsModel = PlayerControlsModel(),
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navigation: NavigationModel = NavigationModel(),
playerTime: PlayerTimeModel = PlayerTimeModel(),
networkState: NetworkStateModel = NetworkStateModel()
) {
self.accounts = accounts
self.comments = comments
self.controls = controls
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self.navigation = navigation
self.playerTime = playerTime
self.networkState = networkState
self.avPlayerBackend = AVPlayerBackend(
model: self,
controls: controls,
playerTime: playerTime
)
self.mpvBackend = MPVBackend(
model: self,
playerTime: playerTime,
networkState: networkState
)
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#if !os(macOS)
mpvBackend.controller = mpvController
mpvBackend.client = mpvController.client
#endif
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Defaults[.activeBackend] = .mpv
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playbackMode = Defaults[.playbackMode]
}
func show() {
#if os(macOS)
if presentingPlayer {
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Windows.player.focus()
return
}
#endif
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navigation.hideKeyboard()
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DispatchQueue.main.async { [weak self] in
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withAnimation(.linear(duration: 0.25)) {
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self?.presentingPlayer = true
}
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}
#if os(macOS)
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Windows.player.open()
Windows.player.focus()
#endif
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}
func hide() {
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withAnimation(.linear(duration: 0.25)) {
presentingPlayer = false
}
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DispatchQueue.main.async { [weak self] in
self?.playingFullScreen = false
}
#if os(iOS)
if Defaults[.lockPortraitWhenBrowsing] {
Orientation.lockOrientation(.portrait, andRotateTo: .portrait)
} else {
Orientation.lockOrientation(.allButUpsideDown)
}
#endif
}
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func togglePlayer() {
#if os(macOS)
if !presentingPlayer {
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Windows.player.open()
}
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Windows.player.focus()
#else
if presentingPlayer {
hide()
} else {
show()
}
#endif
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}
var isLoadingVideo: Bool {
guard !currentVideo.isNil else {
return false
}
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return backend.isLoadingVideo
}
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var isPlaying: Bool {
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backend.isPlaying
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}
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var playerItemDuration: CMTime? {
guard !currentItem.isNil else {
return nil
}
return backend.playerItemDuration
}
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var playerItemDurationWithoutSponsorSegments: CMTime? {
guard let playerItemDuration = playerItemDuration, !playerItemDuration.seconds.isZero else {
return nil
}
return playerItemDuration - .secondsInDefaultTimescale(
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sponsorBlock.segments.reduce(0) { $0 + $1.duration }
)
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}
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var videoDuration: TimeInterval? {
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playerItemDuration?.seconds ?? currentItem?.duration ?? currentVideo?.length
}
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var time: CMTime? {
currentItem?.playbackTime
}
var live: Bool {
currentVideo?.live ?? false
}
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var playingLive: Bool {
guard live,
let videoDuration = videoDuration,
let time = backend.currentTime?.seconds else { return false }
return videoDuration - time < 30
}
var liveStreamInAVPlayer: Bool {
live && activeBackend == .appleAVPlayer
}
func togglePlay() {
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backend.togglePlay()
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}
func play() {
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backend.play()
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}
func pause() {
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backend.pause()
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}
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func play(_ video: Video, at time: CMTime? = nil, showingPlayer: Bool = true) {
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pause()
#if os(iOS)
if !playingInPictureInPicture, showingPlayer {
onPresentPlayer = { [weak self] in self?.playNow(video, at: time) }
show()
return
}
#endif
playNow(video, at: time)
guard !playingInPictureInPicture else {
return
}
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if showingPlayer {
show()
}
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}
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func playStream(
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_ stream: Stream,
of video: Video,
preservingTime: Bool = false,
upgrading: Bool = false
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) {
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playerError = nil
if !upgrading {
resetSegments()
DispatchQueue.main.async { [weak self] in
self?.sponsorBlock.loadSegments(
videoID: video.videoID,
categories: Defaults[.sponsorBlockCategories]
)
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guard Defaults[.enableReturnYouTubeDislike] else {
return
}
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self?.returnYouTubeDislike.loadDislikes(videoID: video.videoID) { [weak self] dislikes in
self?.currentItem?.video?.dislikes = dislikes
}
}
}
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playerTime.reset()
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backend.playStream(
stream,
of: video,
preservingTime: preservingTime,
upgrading: upgrading
)
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if !upgrading {
updateCurrentArtwork()
}
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}
func saveTime(completionHandler: @escaping () -> Void = {}) {
guard let currentTime = backend.currentTime, currentTime.seconds > 0 else {
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completionHandler()
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return
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}
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DispatchQueue.main.async { [weak self] in
self?.preservedTime = currentTime
completionHandler()
}
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}
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func upgradeToStream(_ stream: Stream, force: Bool = false) {
guard let video = currentVideo else {
return
}
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if !self.stream.isNil, force || self.stream != stream {
playStream(stream, of: video, preservingTime: true, upgrading: true)
}
}
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private func handleAvailableStreamsChange() {
rebuildTVMenu()
guard stream.isNil else {
return
}
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if let qualityProfileBackend = qualityProfile?.backend, qualityProfileBackend != activeBackend {
changeActiveBackend(from: activeBackend, to: qualityProfileBackend)
}
guard let stream = streamByQualityProfile else {
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return
}
streamSelection = stream
playStream(
stream,
of: currentVideo!,
preservingTime: !currentItem.playbackTime.isNil
)
}
private func handlePresentationChange() {
var delay = 0.0
#if os(iOS)
if presentingPlayer {
delay = 0.2
}
#endif
DispatchQueue.main.asyncAfter(deadline: .now() + delay) { [weak self] in
guard let self = self else { return }
self.backend.setNeedsDrawing(self.presentingPlayer)
}
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controls.hide()
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#if !os(macOS)
UIApplication.shared.isIdleTimerDisabled = presentingPlayer
#endif
if presentingPlayer, closePiPOnOpeningPlayer, playingInPictureInPicture {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
self?.closePiP()
}
}
if !presentingPlayer, pauseOnHidingPlayer, !playingInPictureInPicture {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
self?.pause()
}
}
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if !presentingPlayer, !pauseOnHidingPlayer, backend.isPlaying {
DispatchQueue.main.asyncAfter(deadline: .now() + 1) { [weak self] in
self?.play()
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}
}
}
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func changeActiveBackend(from: PlayerBackendType, to: PlayerBackendType) {
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guard activeBackend != to else {
return
}
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pause()
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Defaults[.activeBackend] = to
self.activeBackend = to
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guard var stream = stream else {
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return
}
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if to == .mpv {
addVideoTrackFromStream()
} else {
musicMode = false
}
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let fromBackend: PlayerBackend = from == .appleAVPlayer ? avPlayerBackend : mpvBackend
let toBackend: PlayerBackend = to == .appleAVPlayer ? avPlayerBackend : mpvBackend
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if let stream = toBackend.stream, toBackend.video == fromBackend.video {
toBackend.seek(to: fromBackend.currentTime?.seconds ?? .zero) { finished in
guard finished else {
return
}
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toBackend.play()
}
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self.stream = stream
streamSelection = stream
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return
}
if !backend.canPlay(stream) || (to == .mpv && !stream.hlsURL.isNil) {
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guard let preferredStream = streamByQualityProfile else {
return
}
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stream = preferredStream
streamSelection = preferredStream
}
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
guard let self = self else {
return
}
self.upgradeToStream(stream, force: true)
self.setNeedsDrawing(self.presentingPlayer)
}
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}
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func handleQualityProfileChange() {
guard let profile = qualityProfile else { return }
if activeBackend != profile.backend { changeActiveBackend(from: activeBackend, to: profile.backend) }
guard let profileStream = streamByQualityProfile, stream != profileStream else { return }
DispatchQueue.main.async { [weak self] in
self?.streamSelection = profileStream
self?.upgradeToStream(profileStream)
}
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}
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func rateLabel(_ rate: Float) -> String {
let formatter = NumberFormatter()
formatter.minimumFractionDigits = 0
formatter.maximumFractionDigits = 2
return "\(formatter.string(from: NSNumber(value: rate))!)×"
}
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func closeCurrentItem(finished: Bool = false) {
pause()
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prepareCurrentItemForHistory(finished: finished)
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currentItem = nil
updateNowPlayingInfo()
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backend.closeItem()
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aspectRatio = VideoPlayerView.defaultAspectRatio
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resetAutoplay()
closePiP()
exitFullScreen()
#if !os(macOS)
if closePlayerOnItemClose {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) { [weak self] in self?.hide() }
}
#endif
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}
func closePiP() {
guard playingInPictureInPicture else {
return
}
let wasPlaying = isPlaying
pause()
#if os(tvOS)
show()
#endif
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backend.closePiP(wasPlaying: wasPlaying)
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}
func handleQueueChange() {
Defaults[.queue] = queue
updateRemoteCommandCenter()
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controls.objectWillChange.send()
}
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func handleCurrentItemChange() {
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#if os(macOS)
Windows.player.window?.title = windowTitle
#endif
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DispatchQueue.main.async(qos: .background) { [weak self] in
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guard let self = self else { return }
Defaults[.lastPlayed] = self.currentItem
if self.playbackMode == .related,
let video = self.currentVideo,
self.autoplayItemSource.isNil || self.autoplayItemSource?.videoID != video.videoID
{
self.setRelatedAutoplayItem()
}
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}
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}
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func handlePlaybackModeChange() {
Defaults[.playbackMode] = playbackMode
updateRemoteCommandCenter()
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guard playbackMode == .related else {
autoplayItem = nil
return
}
setRelatedAutoplayItem()
}
func setRelatedAutoplayItem() {
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guard let video = currentVideo else { return }
let related = video.related.filter { $0.videoID != autoplayItem?.video?.videoID }
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let watchFetchRequest = Watch.fetchRequest()
watchFetchRequest.predicate = NSPredicate(format: "videoID IN %@", related.map(\.videoID) as [String])
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let results = try? context.fetch(watchFetchRequest)
context.perform { [weak self] in
guard let self = self,
let results = results else { return }
let resultsIds = results.map(\.videoID)
guard let autoplayVideo = related.filter({ !resultsIds.contains($0.videoID) }).randomElement() else {
return
}
let item = PlayerQueueItem(autoplayVideo)
self.autoplayItem = item
self.autoplayItemSource = video
DispatchQueue.main.asyncAfter(deadline: .now() + 3) { [weak self] in
guard let self = self else { return }
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self.playerAPI.loadDetails(item, completionHandler: { newItem in
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guard newItem.videoID == self.autoplayItem?.videoID else { return }
self.autoplayItem = newItem
self.updateRemoteCommandCenter()
self.controls.objectWillChange.send()
})
}
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}
}
func updateRemoteCommandCenter() {
let skipForwardCommand = MPRemoteCommandCenter.shared().skipForwardCommand
let skipBackwardCommand = MPRemoteCommandCenter.shared().skipBackwardCommand
let previousTrackCommand = MPRemoteCommandCenter.shared().previousTrackCommand
let nextTrackCommand = MPRemoteCommandCenter.shared().nextTrackCommand
if !remoteCommandCenterConfigured {
remoteCommandCenterConfigured = true
#if !os(macOS)
try? AVAudioSession.sharedInstance().setCategory(
.playback,
mode: .moviePlayback
)
UIApplication.shared.beginReceivingRemoteControlEvents()
#endif
let preferredIntervals = [NSNumber(10)]
skipForwardCommand.preferredIntervals = preferredIntervals
skipBackwardCommand.preferredIntervals = preferredIntervals
skipForwardCommand.addTarget { [weak self] _ in
self?.backend.seek(relative: .secondsInDefaultTimescale(10))
return .success
}
skipBackwardCommand.addTarget { [weak self] _ in
self?.backend.seek(relative: .secondsInDefaultTimescale(-10))
return .success
}
previousTrackCommand.addTarget { [weak self] _ in
self?.backend.seek(to: .zero)
return .success
}
nextTrackCommand.addTarget { [weak self] _ in
self?.advanceToNextItem()
return .success
}
MPRemoteCommandCenter.shared().playCommand.addTarget { [weak self] _ in
self?.play()
return .success
}
MPRemoteCommandCenter.shared().pauseCommand.addTarget { [weak self] _ in
self?.pause()
return .success
}
MPRemoteCommandCenter.shared().togglePlayPauseCommand.addTarget { [weak self] _ in
self?.togglePlay()
return .success
}
MPRemoteCommandCenter.shared().changePlaybackPositionCommand.addTarget { [weak self] remoteEvent in
guard let event = remoteEvent as? MPChangePlaybackPositionCommandEvent else { return .commandFailed }
self?.backend.seek(to: event.positionTime)
return .success
}
}
switch Defaults[.systemControlsCommands] {
case .seek:
previousTrackCommand.isEnabled = false
nextTrackCommand.isEnabled = false
skipForwardCommand.isEnabled = true
skipBackwardCommand.isEnabled = true
case .restartAndAdvanceToNext:
skipForwardCommand.isEnabled = false
skipBackwardCommand.isEnabled = false
previousTrackCommand.isEnabled = true
nextTrackCommand.isEnabled = isAdvanceToNextItemAvailable
}
}
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func resetAutoplay() {
autoplayItem = nil
autoplayItemSource = nil
}
#if os(macOS)
var windowTitle: String {
currentVideo.isNil ? "Not Playing" : "\(currentVideo!.title) - \(currentVideo!.author)"
}
#else
func handleEnterForeground() {
setNeedsDrawing(presentingPlayer)
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guard closePiPAndOpenPlayerOnEnteringForeground, playingInPictureInPicture else {
return
}
show()
closePiP()
}
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func handleEnterBackground() {
setNeedsDrawing(false)
if Defaults[.pauseOnEnteringBackground], !playingInPictureInPicture, !musicMode {
pause()
}
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}
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#endif
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func enterFullScreen(showControls: Bool = true) {
guard !playingFullScreen else { return }
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logger.info("entering fullscreen")
toggleFullscreen(false, showControls: showControls)
}
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func exitFullScreen(showControls: Bool = true) {
guard playingFullScreen else { return }
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logger.info("exiting fullscreen")
toggleFullscreen(true, showControls: showControls)
}
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func updateNowPlayingInfo() {
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guard let video = currentItem?.video else {
MPNowPlayingInfoCenter.default().nowPlayingInfo = .none
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return
}
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let currentTime = (backend.currentTime?.seconds.isFinite ?? false) ? backend.currentTime!.seconds : 0
var nowPlayingInfo: [String: AnyObject] = [
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MPMediaItemPropertyTitle: video.title as AnyObject,
MPMediaItemPropertyArtist: video.author as AnyObject,
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MPNowPlayingInfoPropertyIsLiveStream: live as AnyObject,
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MPNowPlayingInfoPropertyElapsedPlaybackTime: currentTime as AnyObject,
MPNowPlayingInfoPropertyPlaybackQueueCount: queue.count as AnyObject,
MPNowPlayingInfoPropertyPlaybackQueueIndex: 1 as AnyObject,
MPMediaItemPropertyMediaType: MPMediaType.anyVideo.rawValue as AnyObject
]
if !currentArtwork.isNil {
nowPlayingInfo[MPMediaItemPropertyArtwork] = currentArtwork as AnyObject
}
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if !video.live {
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let itemDuration = (backend.playerItemDuration ?? .zero).seconds
let duration = itemDuration.isFinite ? Double(itemDuration) : nil
if !duration.isNil {
nowPlayingInfo[MPMediaItemPropertyPlaybackDuration] = duration as AnyObject
}
}
MPNowPlayingInfoCenter.default().nowPlayingInfo = nowPlayingInfo
}
func updateCurrentArtwork() {
guard let video = currentVideo,
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let thumbnailURL = video.thumbnailURL(quality: .medium)
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else {
return
}
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let task = URLSession.shared.dataTask(with: thumbnailURL) { [weak self] thumbnailData, _, _ in
guard let thumbnailData = thumbnailData else {
return
}
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#if os(macOS)
guard let image = NSImage(data: thumbnailData) else { return }
#else
guard let image = UIImage(data: thumbnailData) else { return }
#endif
self?.currentArtwork = MPMediaItemArtwork(boundsSize: image.size) { _ in image }
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}
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task.resume()
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}
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func toggleFullscreen(_ isFullScreen: Bool, showControls: Bool = true) {
controls.presentingControls = showControls && isFullScreen
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#if os(macOS)
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Windows.player.toggleFullScreen()
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#endif
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playingFullScreen = !isFullScreen
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#if os(iOS)
if !playingFullScreen {
let rotationOrientation = rotateToPortraitOnExitFullScreen ? UIInterfaceOrientation.portrait : nil
Orientation.lockOrientation(.allButUpsideDown, andRotateTo: rotationOrientation)
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}
#endif
}
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func setNeedsDrawing(_ needsDrawing: Bool) {
backends.forEach { $0.setNeedsDrawing(needsDrawing) }
}
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func toggleMusicMode() {
musicMode.toggle()
if musicMode {
if playingInPictureInPicture {
avPlayerBackend.pause()
avPlayerBackend.switchToMPVOnPipClose = false
closePiP()
}
changeActiveBackend(from: .appleAVPlayer, to: .mpv)
controls.presentingControls = true
controls.removeTimer()
mpvBackend.setVideoToNo()
} else {
addVideoTrackFromStream()
mpvBackend.setVideoToAuto()
controls.resetTimer()
}
}
func addVideoTrackFromStream() {
if let videoTrackURL = stream?.videoAsset?.url,
mpvBackend.tracks < 2
{
logger.info("adding video track")
mpvBackend.addVideoTrack(videoTrackURL)
}
mpvBackend.setVideoToAuto()
}
func updateAspectRatio() {
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#if !os(tvOS)
guard aspectRatio != backend.aspectRatio else { return }
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DispatchQueue.main.async { [weak self] in
guard let self = self else { return }
self.aspectRatio = self.backend.aspectRatio
}
#endif
}
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}