mirror of
https://github.com/yattee/yattee.git
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359 lines
10 KiB
Swift
359 lines
10 KiB
Swift
import CoreMedia
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import Foundation
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import Logging
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#if !os(macOS)
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import Siesta
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import UIKit
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#endif
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final class MPVClient: ObservableObject {
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private var logger = Logger(label: "mpv-client")
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var mpv: OpaquePointer!
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var mpvGL: OpaquePointer!
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var queue: DispatchQueue!
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#if os(macOS)
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var layer: VideoLayer!
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var link: CVDisplayLink!
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#else
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var glView: MPVOGLView!
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#endif
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var backend: MPVBackend!
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var seeking = false
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func create(frame: CGRect? = nil) {
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#if !os(macOS)
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if let frame = frame {
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glView = MPVOGLView(frame: frame)
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}
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#endif
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mpv = mpv_create()
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if mpv == nil {
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print("failed creating context\n")
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exit(1)
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}
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#if DEBUG
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checkError(mpv_request_log_messages(mpv, "debug"))
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#else
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checkError(mpv_request_log_messages(mpv, "warn"))
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#endif
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#if os(macOS)
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checkError(mpv_set_option_string(mpv, "input-media-keys", "yes"))
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#endif
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checkError(mpv_set_option_string(mpv, "hwdec", "auto-safe"))
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checkError(mpv_set_option_string(mpv, "vo", "libmpv"))
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checkError(mpv_initialize(mpv))
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let api = UnsafeMutableRawPointer(mutating: (MPV_RENDER_API_TYPE_OPENGL as NSString).utf8String)
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var initParams = mpv_opengl_init_params(
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get_proc_address: getProcAddress,
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get_proc_address_ctx: nil,
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extra_exts: nil
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)
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queue = DispatchQueue(label: "mpv", qos: .userInteractive)
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withUnsafeMutablePointer(to: &initParams) { initParams in
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var params = [
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mpv_render_param(type: MPV_RENDER_PARAM_API_TYPE, data: api),
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mpv_render_param(type: MPV_RENDER_PARAM_OPENGL_INIT_PARAMS, data: initParams),
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mpv_render_param()
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]
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if mpv_render_context_create(&mpvGL, mpv, ¶ms) < 0 {
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puts("failed to initialize mpv GL context")
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exit(1)
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}
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#if os(macOS)
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mpv_render_context_set_update_callback(
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mpvGL,
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glUpdate,
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UnsafeMutableRawPointer(Unmanaged.passUnretained(layer).toOpaque())
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)
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#else
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glView.mpvGL = UnsafeMutableRawPointer(mpvGL)
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mpv_render_context_set_update_callback(
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mpvGL,
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glUpdate(_:),
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UnsafeMutableRawPointer(Unmanaged.passUnretained(glView).toOpaque())
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)
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#endif
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}
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queue!.async {
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mpv_set_wakeup_callback(self.mpv, wakeUp, UnsafeMutableRawPointer(Unmanaged.passUnretained(self).toOpaque()))
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}
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}
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func readEvents() {
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queue?.async { [self] in
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while self.mpv != nil {
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let event = mpv_wait_event(self.mpv, 0)
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if event!.pointee.event_id == MPV_EVENT_NONE {
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break
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}
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backend.handle(event)
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}
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}
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}
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func loadFile(_ url: URL, audio: URL? = nil, time: CMTime? = nil, completionHandler: ((Int32) -> Void)? = nil) {
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var args = [url.absoluteString]
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var options = [String]()
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if let time = time {
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args.append("replace")
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options.append("start=\(Int(time.seconds))")
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}
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if let audioURL = audio?.absoluteString {
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options.append("audio-files-append=\"\(audioURL)\"")
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}
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args.append(options.joined(separator: ","))
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command("loadfile", args: args, returnValueCallback: completionHandler)
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}
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func play() {
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setFlagAsync("pause", false)
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}
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func pause() {
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setFlagAsync("pause", true)
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}
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func togglePlay() {
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command("cycle", args: ["pause"])
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}
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func stop() {
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command("stop")
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}
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var currentTime: CMTime {
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CMTime.secondsInDefaultTimescale(mpv.isNil ? -1 : getDouble("time-pos"))
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}
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var frameDropCount: Int {
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mpv.isNil ? 0 : getInt("frame-drop-count")
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}
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var outputFps: Double {
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mpv.isNil ? 0.0 : getDouble("estimated-vf-fps")
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}
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var hwDecoder: String {
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mpv.isNil ? "unknown" : (getString("hwdec-current") ?? "unknown")
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}
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var bufferingState: Double {
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mpv.isNil ? 0.0 : getDouble("cache-buffering-state")
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}
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var cacheDuration: Double {
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mpv.isNil ? 0.0 : getDouble("demuxer-cache-duration")
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}
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var duration: CMTime {
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CMTime.secondsInDefaultTimescale(mpv.isNil ? -1 : getDouble("duration"))
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}
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func seek(relative time: CMTime, completionHandler: ((Bool) -> Void)? = nil) {
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guard !seeking else {
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logger.warning("ignoring seek, another in progress")
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return
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}
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seeking = true
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command("seek", args: [String(time.seconds)]) { [weak self] _ in
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self?.seeking = false
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completionHandler?(true)
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}
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}
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func seek(to time: CMTime, completionHandler: ((Bool) -> Void)? = nil) {
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guard !seeking else {
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logger.warning("ignoring seek, another in progress")
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return
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}
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seeking = true
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command("seek", args: [String(time.seconds), "absolute"]) { [weak self] _ in
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self?.seeking = false
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completionHandler?(true)
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}
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}
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func setSize(_ width: Double, _ height: Double) {
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let roundedWidth = width.rounded()
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let roundedHeight = height.rounded()
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guard width > 0, height > 0 else {
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return
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}
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logger.info("setting player size to \(roundedWidth),\(roundedHeight)")
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#if !os(macOS)
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guard roundedWidth <= UIScreen.main.bounds.width, roundedHeight <= UIScreen.main.bounds.height else {
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logger.info("requested size is greater than screen size, ignoring")
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logger.info("width: \(roundedWidth) <= \(UIScreen.main.bounds.width)")
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logger.info("height: \(roundedHeight) <= \(UIScreen.main.bounds.height)")
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return
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}
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glView?.frame = CGRect(x: 0, y: 0, width: roundedWidth, height: roundedHeight)
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#endif
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}
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func setNeedsDrawing(_ needsDrawing: Bool) {
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logger.info("needs drawing: \(needsDrawing)")
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#if !os(macOS)
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glView.needsDrawing = needsDrawing
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#endif
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}
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func command(
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_ command: String,
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args: [String?] = [],
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checkForErrors: Bool = true,
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returnValueCallback: ((Int32) -> Void)? = nil
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) {
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guard mpv != nil else {
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return
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}
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var cargs = makeCArgs(command, args).map { $0.flatMap { UnsafePointer<CChar>(strdup($0)) } }
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defer {
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for ptr in cargs where ptr != nil {
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free(UnsafeMutablePointer(mutating: ptr!))
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}
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}
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logger.info("\(command) -- \(args)")
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let returnValue = mpv_command(mpv, &cargs)
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if checkForErrors {
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checkError(returnValue)
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}
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if let cb = returnValueCallback {
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cb(returnValue)
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}
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}
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func addVideoTrack(_ url: URL) {
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command("video-add", args: [url.absoluteString])
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}
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func setVideoToAuto() {
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setString("video", "1")
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}
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func setVideoToNo() {
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setString("video", "no")
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}
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var tracksCount: Int {
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Int(getString("track-list/count") ?? "-1") ?? -1
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}
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private func setFlagAsync(_ name: String, _ flag: Bool) {
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var data: Int = flag ? 1 : 0
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mpv_set_property_async(mpv, 0, name, MPV_FORMAT_FLAG, &data)
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}
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func setDoubleAsync(_ name: String, _ value: Double) {
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var data = value
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mpv_set_property_async(mpv, 0, name, MPV_FORMAT_DOUBLE, &data)
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}
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private func getDouble(_ name: String) -> Double {
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var data = Double()
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mpv_get_property(mpv, name, MPV_FORMAT_DOUBLE, &data)
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return data
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}
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private func getInt(_ name: String) -> Int {
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var data = Int64()
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mpv_get_property(mpv, name, MPV_FORMAT_INT64, &data)
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return Int(data)
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}
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func getString(_ name: String) -> String? {
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let cstr = mpv_get_property_string(mpv, name)
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let str: String? = cstr == nil ? nil : String(cString: cstr!)
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mpv_free(cstr)
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return str
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}
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private func setString(_ name: String, _ value: String) {
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mpv_set_property_string(mpv, name, value)
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}
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private func makeCArgs(_ command: String, _ args: [String?]) -> [String?] {
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if !args.isEmpty, args.last == nil {
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fatalError("Command do not need a nil suffix")
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}
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var strArgs = args
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strArgs.insert(command, at: 0)
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strArgs.append(nil)
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return strArgs
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}
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func checkError(_ status: CInt) {
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if status < 0 {
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logger.error(.init(stringLiteral: "MPV API error: \(String(cString: mpv_error_string(status)))\n"))
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}
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}
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}
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#if os(macOS)
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func getProcAddress(_: UnsafeMutableRawPointer?, _ name: UnsafePointer<Int8>?) -> UnsafeMutableRawPointer? {
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let symbolName = CFStringCreateWithCString(kCFAllocatorDefault, name, CFStringBuiltInEncodings.ASCII.rawValue)
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let identifier = CFBundleGetBundleWithIdentifier("com.apple.opengl" as CFString)
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return CFBundleGetFunctionPointerForName(identifier, symbolName)
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}
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func glUpdate(_ ctx: UnsafeMutableRawPointer?) {
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let videoLayer = unsafeBitCast(ctx, to: VideoLayer.self)
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videoLayer.client?.queue?.async {
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if !videoLayer.isAsynchronous {
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videoLayer.display()
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}
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}
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}
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#else
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func getProcAddress(_: UnsafeMutableRawPointer?, _ name: UnsafePointer<Int8>?) -> UnsafeMutableRawPointer? {
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let symbolName = CFStringCreateWithCString(kCFAllocatorDefault, name, CFStringBuiltInEncodings.ASCII.rawValue)
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let identifier = CFBundleGetBundleWithIdentifier("com.apple.opengles" as CFString)
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return CFBundleGetFunctionPointerForName(identifier, symbolName)
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}
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private func glUpdate(_ ctx: UnsafeMutableRawPointer?) {
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let glView = unsafeBitCast(ctx, to: MPVOGLView.self)
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guard glView.needsDrawing else {
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return
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}
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glView.queue.async {
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glView.display()
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}
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}
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#endif
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private func wakeUp(_ context: UnsafeMutableRawPointer?) {
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let client = unsafeBitCast(context, to: MPVClient.self)
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client.readEvents()
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}
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