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Video playback progress and restoring time for previously played

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This commit is contained in:
Arkadiusz Fal
2021-10-22 22:49:31 +02:00
parent bc065e282a
commit 4307da57c5
13 changed files with 219 additions and 89 deletions
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79
Model/Player/PlayerModel.swift
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@@ -28,7 +28,6 @@ final class PlayerModel: ObservableObject {
@Published var queue = [PlayerQueueItem]()
@Published var currentItem: PlayerQueueItem!
@Published var live = false
@Published var time: CMTime?
@Published var history = [PlayerQueueItem]()
@@ -58,6 +57,18 @@ final class PlayerModel: ObservableObject {
player.timeControlStatus == .playing
}
var time: CMTime? {
currentItem?.playbackTime
}
var playerItemDuration: CMTime? {
player.currentItem?.asset.duration
}
var videoDuration: TimeInterval? {
currentItem?.duration ?? currentVideo?.length
}
func togglePlay() {
isPlaying ? pause() : play()
}
@@ -78,8 +89,8 @@ final class PlayerModel: ObservableObject {
player.pause()
}
func playVideo(_ video: Video) {
savedTime = nil
func playVideo(_ video: Video, time: CMTime? = nil) {
savedTime = time
shouldResumePlaying = true
loadAvailableStreams(video) { streams in
@@ -88,33 +99,32 @@ final class PlayerModel: ObservableObject {
}
self.streamSelection = stream
self.playStream(stream, of: video, forcePlay: true)
self.playStream(stream, of: video, preservingTime: !time.isNil)
}
}
func upgradeToStream(_ stream: Stream) {
if !self.stream.isNil, self.stream != stream {
playStream(stream, of: currentItem.video, preservingTime: true)
playStream(stream, of: currentVideo!, preservingTime: true)
}
}
private func playStream(
_ stream: Stream,
of video: Video,
forcePlay: Bool = false,
preservingTime: Bool = false
) {
if let url = stream.singleAssetURL {
logger.info("playing stream with one asset\(stream.kind == .hls ? " (HLS)" : ""): \(url)")
insertPlayerItem(stream, for: video, forcePlay: forcePlay, preservingTime: preservingTime)
insertPlayerItem(stream, for: video, preservingTime: preservingTime)
} else {
logger.info("playing stream with many assets:")
logger.info("composition audio asset: \(stream.audioAsset.url)")
logger.info("composition video asset: \(stream.videoAsset.url)")
Task {
await self.loadComposition(stream, of: video, forcePlay: forcePlay, preservingTime: preservingTime)
await self.loadComposition(stream, of: video, preservingTime: preservingTime)
}
}
}
@@ -122,51 +132,58 @@ final class PlayerModel: ObservableObject {
private func insertPlayerItem(
_ stream: Stream,
for video: Video,
forcePlay: Bool = false,
preservingTime: Bool = false
) {
let playerItem = playerItem(stream)
guard playerItem != nil else {
return
}
attachMetadata(to: playerItem!, video: video, for: stream)
DispatchQueue.main.async {
self.stream = stream
self.composition = AVMutableComposition()
}
shouldResumePlaying = forcePlay || isPlaying
let replaceItemAndSeek = {
self.player.replaceCurrentItem(with: playerItem)
self.seekToSavedTime { finished in
guard finished else {
return
}
self.savedTime = nil
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
self.play()
}
}
}
let startPlaying = {
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
self.play()
}
}
if preservingTime {
saveTime {
self.player.replaceCurrentItem(with: playerItem)
self.seekToSavedTime { finished in
guard finished else {
return
}
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
forcePlay || self.shouldResumePlaying ? self.play() : self.pause()
self.shouldResumePlaying = false
}
if savedTime.isNil {
saveTime {
replaceItemAndSeek()
startPlaying()
}
} else {
replaceItemAndSeek()
startPlaying()
}
} else {
player.replaceCurrentItem(with: playerItem)
DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
forcePlay || self.shouldResumePlaying ? self.play() : self.pause()
self.shouldResumePlaying = false
}
startPlaying()
}
}
private func loadComposition(
_ stream: Stream,
of video: Video,
forcePlay: Bool = false,
preservingTime: Bool = false
) async {
await loadCompositionAsset(stream.audioAsset, type: .audio, of: video)
@@ -177,7 +194,7 @@ final class PlayerModel: ObservableObject {
return
}
insertPlayerItem(stream, for: video, forcePlay: forcePlay, preservingTime: preservingTime)
insertPlayerItem(stream, for: video, preservingTime: preservingTime)
}
private func loadCompositionAsset(_ asset: AVURLAsset, type: AVMediaType, of video: Video) async {
@@ -274,6 +291,7 @@ final class PlayerModel: ObservableObject {
@objc func itemDidPlayToEndTime() {
if queue.isEmpty {
addCurrentItemToHistory()
resetQueue()
#if os(tvOS)
avPlayerViewController!.dismiss(animated: true) {
@@ -318,7 +336,8 @@ final class PlayerModel: ObservableObject {
timeObserver = player.addPeriodicTimeObserver(forInterval: interval, queue: .main) { _ in
self.currentRate = self.player.rate
self.live = self.currentVideo?.live ?? false
self.time = self.player.currentTime()
self.currentItem?.playbackTime = self.player.currentTime()
self.currentItem?.videoDuration = self.player.currentItem?.asset.duration.seconds
}
}
}