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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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 = AVPlayerView()
var playerItem: AVPlayerItem?
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var mpvPlayerView = MPVPlayerView()
@Published var presentingPlayer = false { didSet { handlePresentationChange() } }
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@Published var activeBackend = PlayerBackendType.mpv
var avPlayerBackend: AVPlayerBackend!
var mpvBackend: MPVBackend!
var backends: [PlayerBackend] {
[avPlayerBackend, mpvBackend]
}
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var backend: PlayerBackend! {
switch activeBackend {
case .mpv:
return mpvBackend
case .appleAVPlayer:
return avPlayerBackend
}
}
@Published var playerSize: CGSize = .zero
@Published var stream: Stream?
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@Published var currentRate: Float = 1.0 { didSet { backend.setRate(currentRate) } }
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@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 { Defaults[.queue] = queue } }
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@Published var currentItem: PlayerQueueItem! { didSet { handleCurrentItemChange() } }
@Published var historyVideos = [Video]()
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@Published var preservedTime: CMTime?
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@Published var playerNavigationLinkActive = false { didSet { handleNavigationViewPlayerPresentationChange() } }
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@Published var sponsorBlock = SponsorBlockAPI()
@Published var segmentRestorationTime: CMTime?
@Published var lastSkipped: Segment? { didSet { rebuildTVMenu() } }
@Published var restoredSegments = [Segment]()
#if os(iOS)
@Published var motionManager: CMMotionManager!
@Published var lockedOrientation: UIInterfaceOrientation?
@Published var lastOrientation: UIInterfaceOrientation?
#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
}
}}
var context: NSManagedObjectContext = PersistenceController.shared.container.viewContext
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@Published var playingInPictureInPicture = false
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@Published var presentingErrorDetails = false
var playerError: Error? { didSet {
#if !os(tvOS)
if !playerError.isNil {
presentingErrorDetails = true
}
#endif
}}
@Default(.pauseOnHidingPlayer) private var pauseOnHidingPlayer
@Default(.closePiPOnNavigation) var closePiPOnNavigation
@Default(.closePiPOnOpeningPlayer) var closePiPOnOpeningPlayer
#if !os(macOS)
@Default(.closePiPAndOpenPlayerOnEnteringForeground) var closePiPAndOpenPlayerOnEnteringForeground
#endif
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private var currentArtwork: MPMediaItemArtwork?
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init(accounts: AccountsModel? = nil, comments: CommentsModel? = nil, controls: PlayerControlsModel? = nil) {
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self.accounts = accounts ?? AccountsModel()
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self.comments = comments ?? CommentsModel()
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self.controls = controls ?? PlayerControlsModel()
self.avPlayerBackend = AVPlayerBackend(model: self, controls: controls)
self.mpvBackend = MPVBackend(model: self)
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self.activeBackend = Defaults[.activeBackend]
}
func show() {
guard !presentingPlayer else {
#if os(macOS)
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Windows.player.focus()
#endif
return
}
#if os(macOS)
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Windows.player.open()
Windows.player.focus()
#endif
presentingPlayer = true
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}
func hide() {
presentingPlayer = false
playerNavigationLinkActive = false
}
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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? {
backend.playerItemDuration
}
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var playerItemDurationWithoutSponsorSegments: CMTime? {
(backend.playerItemDuration ?? .zero) - .secondsInDefaultTimescale(
sponsorBlock.segments.reduce(0) { $0 + $1.duration }
)
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}
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var videoDuration: TimeInterval? {
currentItem?.duration ?? currentVideo?.length ?? playerItemDuration?.seconds
}
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var time: CMTime? {
currentItem?.playbackTime
}
var live: Bool {
currentVideo?.live ?? false
}
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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}
func play(_ video: Video, at time: TimeInterval? = nil, inNavigationView: Bool = false) {
playNow(video, at: time)
guard !playingInPictureInPicture else {
return
}
if inNavigationView {
playerNavigationLinkActive = true
} else {
show()
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}
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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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) {
if Defaults[.showChannelSubscribers] {
self?.loadCurrentItemChannelDetails()
}
}
}
}
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controls.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 {
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) {
if !self.stream.isNil, force || self.stream != stream {
playStream(stream, of: currentVideo!, preservingTime: true, upgrading: true)
}
}
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private func handleAvailableStreamsChange() {
rebuildTVMenu()
guard stream.isNil else {
return
}
guard let stream = preferredStream(availableStreams) else {
return
}
streamSelection = stream
playStream(
stream,
of: currentVideo!,
preservingTime: !currentItem.playbackTime.isNil
)
}
private func handlePresentationChange() {
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backend.setNeedsDrawing(presentingPlayer)
controls.hide()
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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}
}
}
private func handleNavigationViewPlayerPresentationChange() {
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backend.setNeedsDrawing(playerNavigationLinkActive)
controls.hide()
if pauseOnHidingPlayer, !playingInPictureInPicture, !playerNavigationLinkActive {
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
self.pause()
}
}
}
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func changeActiveBackend(from: PlayerBackendType, to: PlayerBackendType) {
Defaults[.activeBackend] = to
self.activeBackend = to
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guard var stream = stream else {
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return
}
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inactiveBackends().forEach { $0.pause() }
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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
}
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if !backend.canPlay(stream) {
guard let preferredStream = preferredStream(availableStreams) else {
return
}
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stream = preferredStream
streamSelection = preferredStream
}
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DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) { [weak self] in
self?.upgradeToStream(stream, force: true)
}
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}
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private func inactiveBackends() -> [PlayerBackend] {
[activeBackend == PlayerBackendType.mpv ? avPlayerBackend : mpvBackend]
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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() {
prepareCurrentItemForHistory()
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currentItem = nil
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backend.closeItem()
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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 handleCurrentItemChange() {
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#if os(macOS)
Windows.player.window?.title = windowTitle
#endif
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Defaults[.lastPlayed] = currentItem
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}
#if os(macOS)
var windowTitle: String {
currentVideo.isNil ? "Not playing" : "\(currentVideo!.title) - \(currentVideo!.author)"
}
#else
func handleEnterForeground() {
guard closePiPAndOpenPlayerOnEnteringForeground, playingInPictureInPicture else {
return
}
show()
closePiP()
}
func enterFullScreen() {
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guard !controls.playingFullscreen else {
return
}
logger.info("entering fullscreen")
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backend.enterFullScreen()
}
func exitFullScreen() {
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guard controls.playingFullscreen else {
return
}
logger.info("exiting fullscreen")
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backend.exitFullScreen()
}
#endif
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func updateNowPlayingInfo() {
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guard let video = currentItem?.video else {
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,
MPNowPlayingInfoPropertyIsLiveStream: video.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,
let thumbnailData = try? Data(contentsOf: video.thumbnailURL(quality: .medium)!)
else {
return
}
#if os(macOS)
let image = NSImage(data: thumbnailData)
#else
let image = UIImage(data: thumbnailData)
#endif
if image.isNil {
return
}
currentArtwork = MPMediaItemArtwork(boundsSize: image!.size) { _ in image! }
}
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}