Files
streamyfin/modules/mpv-player/ios/MpvPlayerView.swift

538 lines
15 KiB
Swift

import AVFoundation
import CoreMedia
import ExpoModulesCore
import MediaPlayer
import UIKit
/// Configuration for loading a video
struct VideoLoadConfig {
let url: URL
var headers: [String: String]?
var externalSubtitles: [String]?
var startPosition: Double?
var autoplay: Bool
/// MPV subtitle track ID to select on start (1-based, -1 to disable, nil to use default)
var initialSubtitleId: Int?
/// MPV audio track ID to select on start (1-based, nil to use default)
var initialAudioId: Int?
init(
url: URL,
headers: [String: String]? = nil,
externalSubtitles: [String]? = nil,
startPosition: Double? = nil,
autoplay: Bool = true,
initialSubtitleId: Int? = nil,
initialAudioId: Int? = nil
) {
self.url = url
self.headers = headers
self.externalSubtitles = externalSubtitles
self.startPosition = startPosition
self.autoplay = autoplay
self.initialSubtitleId = initialSubtitleId
self.initialAudioId = initialAudioId
}
}
// This view will be used as a native component. Make sure to inherit from `ExpoView`
// to apply the proper styling (e.g. border radius and shadows).
class MpvPlayerView: ExpoView {
private let displayLayer = AVSampleBufferDisplayLayer()
private var renderer: MPVLayerRenderer?
private var videoContainer: UIView!
private var pipController: PiPController?
let onLoad = EventDispatcher()
let onPlaybackStateChange = EventDispatcher()
let onProgress = EventDispatcher()
let onError = EventDispatcher()
let onTracksReady = EventDispatcher()
private var currentURL: URL?
private var cachedPosition: Double = 0
private var cachedDuration: Double = 0
private var intendedPlayState: Bool = false
private var _isZoomedToFill: Bool = false
// Reference to now playing manager
private let nowPlayingManager = MPVNowPlayingManager.shared
required init(appContext: AppContext? = nil) {
super.init(appContext: appContext)
setupNotifications()
setupView()
}
private func setupView() {
clipsToBounds = true
backgroundColor = .black
videoContainer = UIView()
videoContainer.translatesAutoresizingMaskIntoConstraints = false
videoContainer.backgroundColor = .black
videoContainer.clipsToBounds = true
addSubview(videoContainer)
displayLayer.frame = bounds
displayLayer.videoGravity = .resizeAspect
if #available(iOS 17.0, *) {
displayLayer.wantsExtendedDynamicRangeContent = true
}
displayLayer.backgroundColor = UIColor.black.cgColor
videoContainer.layer.addSublayer(displayLayer)
NSLayoutConstraint.activate([
videoContainer.topAnchor.constraint(equalTo: topAnchor),
videoContainer.leadingAnchor.constraint(equalTo: leadingAnchor),
videoContainer.trailingAnchor.constraint(equalTo: trailingAnchor),
videoContainer.bottomAnchor.constraint(equalTo: bottomAnchor)
])
renderer = MPVLayerRenderer(displayLayer: displayLayer)
renderer?.delegate = self
// Setup PiP
pipController = PiPController(sampleBufferDisplayLayer: displayLayer)
pipController?.delegate = self
do {
try renderer?.start()
} catch {
onError(["error": "Failed to start renderer: \(error.localizedDescription)"])
}
}
override func layoutSubviews() {
super.layoutSubviews()
CATransaction.begin()
CATransaction.setDisableActions(true)
displayLayer.frame = videoContainer.bounds
displayLayer.isHidden = false
displayLayer.opacity = 1.0
CATransaction.commit()
}
// MARK: - Audio Session & Notifications
private func setupNotifications() {
// Handle audio session interruptions (e.g., incoming calls, other apps playing audio)
NotificationCenter.default.addObserver(
self, selector: #selector(handleAudioSessionInterruption),
name: AVAudioSession.interruptionNotification, object: nil)
}
@objc func handleAudioSessionInterruption(_ notification: Notification) {
guard let userInfo = notification.userInfo,
let typeValue = userInfo[AVAudioSessionInterruptionTypeKey] as? UInt,
let type = AVAudioSession.InterruptionType(rawValue: typeValue) else {
return
}
switch type {
case .began:
// Interruption began - pause the video
print("[MPV] Audio session interrupted - pausing video")
self.pause()
case .ended:
// Interruption ended - check if we should resume
if let optionsValue = userInfo[AVAudioSessionInterruptionOptionKey] as? UInt {
let options = AVAudioSession.InterruptionOptions(rawValue: optionsValue)
if options.contains(.shouldResume) {
print("[MPV] Audio session interruption ended - can resume")
// Don't auto-resume - let user manually resume playback
} else {
print("[MPV] Audio session interruption ended - should not resume")
}
}
@unknown default:
break
}
}
private func setupRemoteCommands() {
nowPlayingManager.setupRemoteCommands(
playHandler: { [weak self] in self?.play() },
pauseHandler: { [weak self] in self?.pause() },
toggleHandler: { [weak self] in
guard let self else { return }
if self.intendedPlayState { self.pause() } else { self.play() }
},
seekHandler: { [weak self] time in self?.seekTo(position: time) },
skipForward: { [weak self] interval in self?.seekBy(offset: interval) },
skipBackward: { [weak self] interval in self?.seekBy(offset: -interval) }
)
}
// MARK: - Now Playing Info
func setNowPlayingMetadata(_ metadata: [String: String]) {
print("[MPV] setNowPlayingMetadata: \(metadata["title"] ?? "nil")")
nowPlayingManager.setMetadata(
title: metadata["title"],
artist: metadata["artist"],
albumTitle: metadata["albumTitle"],
artworkUrl: metadata["artworkUri"]
)
}
private func clearNowPlayingInfo() {
nowPlayingManager.cleanupRemoteCommands()
nowPlayingManager.deactivateAudioSession()
nowPlayingManager.clear()
}
func loadVideo(config: VideoLoadConfig) {
// Skip reload if same URL is already playing
if currentURL == config.url {
return
}
currentURL = config.url
let preset = PlayerPreset(
id: .sdrRec709,
title: "Default",
summary: "Default playback preset",
stream: nil,
commands: []
)
// Pass everything to the renderer - it handles start position and external subs
renderer?.load(
url: config.url,
with: preset,
headers: config.headers,
startPosition: config.startPosition,
externalSubtitles: config.externalSubtitles,
initialSubtitleId: config.initialSubtitleId,
initialAudioId: config.initialAudioId
)
if config.autoplay {
play()
}
onLoad(["url": config.url.absoluteString])
}
// Convenience method for simple loads
func loadVideo(url: URL, headers: [String: String]? = nil) {
loadVideo(config: VideoLoadConfig(url: url, headers: headers))
}
func play() {
intendedPlayState = true
setupRemoteCommands()
renderer?.play()
pipController?.setPlaybackRate(1.0)
pipController?.updatePlaybackState()
}
func pause() {
intendedPlayState = false
renderer?.pausePlayback()
pipController?.setPlaybackRate(0.0)
pipController?.updatePlaybackState()
}
func seekTo(position: Double) {
// Update cached position and Now Playing immediately for smooth Control Center feedback
cachedPosition = position
syncNowPlaying(isPlaying: !isPaused())
renderer?.seek(to: position)
}
func seekBy(offset: Double) {
// Update cached position and Now Playing immediately for smooth Control Center feedback
let newPosition = max(0, min(cachedPosition + offset, cachedDuration))
cachedPosition = newPosition
syncNowPlaying(isPlaying: !isPaused())
renderer?.seek(by: offset)
}
func setSpeed(speed: Double) {
renderer?.setSpeed(speed)
}
func getSpeed() -> Double {
return renderer?.getSpeed() ?? 1.0
}
func isPaused() -> Bool {
return renderer?.isPausedState ?? true
}
func getCurrentPosition() -> Double {
return cachedPosition
}
func getDuration() -> Double {
return cachedDuration
}
// MARK: - Picture in Picture
func startPictureInPicture() {
print("🎬 MpvPlayerView: startPictureInPicture called")
print("🎬 Duration: \(getDuration()), IsPlaying: \(!isPaused())")
pipController?.startPictureInPicture()
}
func stopPictureInPicture() {
pipController?.stopPictureInPicture()
}
func isPictureInPictureSupported() -> Bool {
return pipController?.isPictureInPictureSupported ?? false
}
func isPictureInPictureActive() -> Bool {
return pipController?.isPictureInPictureActive ?? false
}
// MARK: - Subtitle Controls
func getSubtitleTracks() -> [[String: Any]] {
return renderer?.getSubtitleTracks() ?? []
}
func setSubtitleTrack(_ trackId: Int) {
renderer?.setSubtitleTrack(trackId)
}
func disableSubtitles() {
renderer?.disableSubtitles()
}
func getCurrentSubtitleTrack() -> Int {
return renderer?.getCurrentSubtitleTrack() ?? 0
}
func addSubtitleFile(url: String, select: Bool = true) {
renderer?.addSubtitleFile(url: url, select: select)
}
// MARK: - Audio Track Controls
func getAudioTracks() -> [[String: Any]] {
return renderer?.getAudioTracks() ?? []
}
func setAudioTrack(_ trackId: Int) {
renderer?.setAudioTrack(trackId)
}
func getCurrentAudioTrack() -> Int {
return renderer?.getCurrentAudioTrack() ?? 0
}
// MARK: - Subtitle Positioning
func setSubtitlePosition(_ position: Int) {
renderer?.setSubtitlePosition(position)
}
func setSubtitleScale(_ scale: Double) {
renderer?.setSubtitleScale(scale)
}
func setSubtitleMarginY(_ margin: Int) {
renderer?.setSubtitleMarginY(margin)
}
func setSubtitleAlignX(_ alignment: String) {
renderer?.setSubtitleAlignX(alignment)
}
func setSubtitleAlignY(_ alignment: String) {
renderer?.setSubtitleAlignY(alignment)
}
func setSubtitleFontSize(_ size: Int) {
renderer?.setSubtitleFontSize(size)
}
// MARK: - Video Scaling
func setZoomedToFill(_ zoomed: Bool) {
_isZoomedToFill = zoomed
displayLayer.videoGravity = zoomed ? .resizeAspectFill : .resizeAspect
}
func isZoomedToFill() -> Bool {
return _isZoomedToFill
}
// MARK: - Technical Info
func getTechnicalInfo() -> [String: Any] {
return renderer?.getTechnicalInfo() ?? [:]
}
deinit {
pipController?.stopPictureInPicture()
renderer?.stop()
displayLayer.removeFromSuperlayer()
clearNowPlayingInfo()
NotificationCenter.default.removeObserver(self)
}
}
// MARK: - MPVLayerRendererDelegate
extension MpvPlayerView: MPVLayerRendererDelegate {
// MARK: - Single location for Now Playing updates
private func syncNowPlaying(isPlaying: Bool) {
print("[MPV] syncNowPlaying: pos=\(Int(cachedPosition))s, dur=\(Int(cachedDuration))s, playing=\(isPlaying)")
nowPlayingManager.updatePlayback(position: cachedPosition, duration: cachedDuration, isPlaying: isPlaying)
}
func renderer(_: MPVLayerRenderer, didUpdatePosition position: Double, duration: Double, cacheSeconds: Double) {
cachedPosition = position
cachedDuration = duration
DispatchQueue.main.async { [weak self] in
guard let self else { return }
if self.pipController?.isPictureInPictureActive == true {
self.pipController?.setCurrentTimeFromSeconds(position, duration: duration)
}
self.onProgress([
"position": position,
"duration": duration,
"progress": duration > 0 ? position / duration : 0,
"cacheSeconds": cacheSeconds,
])
}
}
func renderer(_: MPVLayerRenderer, didChangePause isPaused: Bool) {
DispatchQueue.main.async { [weak self] in
guard let self else { return }
print("[MPV] didChangePause: isPaused=\(isPaused), cachedDuration=\(self.cachedDuration)")
self.pipController?.setPlaybackRate(isPaused ? 0.0 : 1.0)
self.syncNowPlaying(isPlaying: !isPaused)
self.onPlaybackStateChange([
"isPaused": isPaused,
"isPlaying": !isPaused,
])
}
}
func renderer(_: MPVLayerRenderer, didChangeLoading isLoading: Bool) {
DispatchQueue.main.async { [weak self] in
guard let self else { return }
self.onPlaybackStateChange([
"isLoading": isLoading,
])
}
}
func renderer(_: MPVLayerRenderer, didBecomeReadyToSeek: Bool) {
DispatchQueue.main.async { [weak self] in
guard let self else { return }
self.onPlaybackStateChange([
"isReadyToSeek": didBecomeReadyToSeek,
])
}
}
func renderer(_: MPVLayerRenderer, didBecomeTracksReady: Bool) {
DispatchQueue.main.async { [weak self] in
guard let self else { return }
self.onTracksReady([:])
}
}
func renderer(_: MPVLayerRenderer, didSelectAudioOutput audioOutput: String) {
// Audio output is now active - this is the right time to activate audio session and set Now Playing
print("[MPV] Audio output ready (\(audioOutput)), activating audio session and syncing Now Playing")
nowPlayingManager.activateAudioSession()
syncNowPlaying(isPlaying: !isPaused())
}
}
// MARK: - PiPControllerDelegate
extension MpvPlayerView: PiPControllerDelegate {
func pipController(_ controller: PiPController, willStartPictureInPicture: Bool) {
print("PiP will start")
// Sync timebase before PiP starts for smooth transition
renderer?.syncTimebase()
// Set current time for PiP progress bar
pipController?.setCurrentTimeFromSeconds(cachedPosition, duration: cachedDuration)
// Reset to fit for PiP (zoomed video doesn't display correctly in PiP)
if _isZoomedToFill {
displayLayer.videoGravity = .resizeAspect
}
}
func pipController(_ controller: PiPController, didStartPictureInPicture: Bool) {
print("PiP did start: \(didStartPictureInPicture)")
// Ensure current time is synced when PiP starts
pipController?.setCurrentTimeFromSeconds(cachedPosition, duration: cachedDuration)
}
func pipController(_ controller: PiPController, willStopPictureInPicture: Bool) {
print("PiP will stop")
// Sync timebase before returning from PiP
renderer?.syncTimebase()
}
func pipController(_ controller: PiPController, didStopPictureInPicture: Bool) {
print("PiP did stop")
// Ensure timebase is synced after PiP ends
renderer?.syncTimebase()
pipController?.updatePlaybackState()
// Restore the user's zoom preference
if _isZoomedToFill {
displayLayer.videoGravity = .resizeAspectFill
}
}
func pipController(_ controller: PiPController, restoreUserInterfaceForPictureInPictureStop completionHandler: @escaping (Bool) -> Void) {
print("PiP restore user interface")
completionHandler(true)
}
func pipControllerPlay(_ controller: PiPController) {
print("PiP play requested")
intendedPlayState = true
renderer?.play()
pipController?.setPlaybackRate(1.0)
}
func pipControllerPause(_ controller: PiPController) {
print("PiP pause requested")
intendedPlayState = false
renderer?.pausePlayback()
pipController?.setPlaybackRate(0.0)
}
func pipController(_ controller: PiPController, skipByInterval interval: CMTime) {
let seconds = CMTimeGetSeconds(interval)
print("PiP skip by interval: \(seconds)")
let target = max(0, cachedPosition + seconds)
seekTo(position: target)
}
func pipControllerIsPlaying(_ controller: PiPController) -> Bool {
// Use intended state to ignore transient pauses during seeking
return intendedPlayState
}
func pipControllerDuration(_ controller: PiPController) -> Double {
return getDuration()
}
func pipControllerCurrentPosition(_ controller: PiPController) -> Double {
return getCurrentPosition()
}
}