9 changed files with 416 additions and 299 deletions
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4kplayer.xcodeproj/project.pbxproj
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60kplayer/core/NetworkManager.swift
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187kplayer/core/ThumbnailCache.swift
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55kplayer/detail/DetailViewController.swift
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300kplayer/photo/MediaPhotoController.swift
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4kplayer/util/HanekeFetchOperation.swift
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52kplayer/util/ImageLoadOperation.swift
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14kplayer/util/UIImageExtension.swift
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21kplayerTests/kplayerTests.swift
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// |
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// Created by Marco Schmickler on 2018-12-23. |
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// Copyright (c) 2018 Marco Schmickler. All rights reserved. |
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// |
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import Foundation |
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import UIKit |
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class ThumbnailCache { |
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let items: [MediaItem] |
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var urlSession: Foundation.URLSession? |
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var sessionOwner = false |
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let dateFormatter = DateFormatter() |
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var imageCache = NSCache<AnyObject, AnyObject>() |
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var total = 0 |
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var currentIndex = 80 |
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let refresh: () -> Void; |
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var loading = true; |
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init(items: [MediaItem], refresh: @escaping () -> Void) { |
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self.items = items |
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self.refresh = refresh |
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imageCache.totalCostLimit = 1024 * 1024 * 1024 |
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if urlSession == nil { |
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sessionOwner = true |
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let configuration = URLSessionConfiguration.ephemeral; // backgroundSessionConfigurationWithIdentifier("imageLoad"); |
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configuration.httpMaximumConnectionsPerHost = 10; |
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configuration.timeoutIntervalForRequest = 100; |
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configuration.timeoutIntervalForResource = 200; |
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urlSession = Foundation.URLSession(configuration: configuration, delegate: nil, delegateQueue: nil); |
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} |
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preload(0, count: 20) |
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preload(20, count: 20) |
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preload(40, count: 20) |
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preload(60, count: 20) |
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usleep(10000) |
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} |
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func loadData(_ d: Data, start: Int, end: Int) { |
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let bytes = Array(UnsafeBufferPointer(start: (d as NSData).bytes.bindMemory(to: UInt8.self, capacity: d.count), count: d.count)) |
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let string1 = NSString(data: d, encoding: String.Encoding.utf8.rawValue) |
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print(string1) |
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var index = 0 |
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let fHi = (Int(bytes[index]) << 24) + (Int(bytes[index+1]) << 16) |
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let f = fHi + (Int(bytes[index+2]) << 8) + Int(bytes[index+3]) |
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index += 4 |
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let time = dateFormatter.string(from: Date()) |
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print("\(time) start \(start) count \(f) size \(d.count)") |
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var rest = self.items.count - self.currentIndex |
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if rest > 20 { |
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rest = 20 |
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} |
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if rest > 0 { |
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self.preload(self.currentIndex, count: rest) |
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self.currentIndex += rest |
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} else { |
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loading = false |
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DispatchQueue.main.async(execute: refresh) |
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} |
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for bild in start ..< end { |
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let sizeHi = (Int(bytes[index]) << 24) + (Int(bytes[index+1]) << 16) |
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let size = (Int(bytes[index+2]) << 8) + Int(bytes[index+3]) + sizeHi |
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index += 4 |
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if size > 0 { |
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// var buf = //UnsafeMutablePointer<UInt8>(&bytes[index]) |
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let part = d.subdata(in: index ..< (index + size)) |
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if let img = UIImage(data: part) { |
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let imageRef = img.cgImage; |
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self.total += d.count |
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let i = self.items[bild] |
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// print("\(time) preload combi image loaded \(i.name) cost \(cost) total\(self.total)") |
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self.imageCache.setObject(img, forKey: i.thumbUrlAbsolute as AnyObject, cost: size) |
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} |
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} |
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index += size |
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} |
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} |
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func preload(_ start: Int, count: Int) { |
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dateFormatter.dateFormat = "HH:mm:ss.SSSZ" |
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var preview = "" |
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var end = start + count |
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if end > items.count { |
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end = items.count |
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} |
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if end < start { |
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return |
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} |
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for k in start ..< end { |
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let tu = items[k].thumbUrl!.replacingOccurrences(of: "?preview=true", with: "") |
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preview += "\(tu);" |
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} |
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preview = preview.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)! |
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let u2 = "\(NetworkManager.sharedInstance.baseurl)/service/preload?preview=\(preview)" |
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let u3 = URL(string: u2) |
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if let URL = u3 { |
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let time = dateFormatter.string(from: Date()) |
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print("\(time) preload image \(u2)") |
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urlSession!.dataTask(with: URL, completionHandler: { |
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(da, response, error) in |
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if let d = da { |
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DispatchQueue.global(priority: DispatchQueue.GlobalQueuePriority.high).async { |
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() -> Void in |
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self.loadData(d, start: start, end: end) |
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} |
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} |
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}) .resume() |
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} else { |
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print("## Invalid URL: \(u2)") |
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} |
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} |
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func cancel() { |
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imageCache.removeAllObjects() |
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if sessionOwner { |
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urlSession!.invalidateAndCancel() |
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} |
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} |
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func getThumbnail(_ item: MediaItem) -> UIImage? { |
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let u1 = URL(string: item.thumbUrlAbsolute) |
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if let URL = u1 { |
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return imageCache.object(forKey: URL.absoluteString as AnyObject) as? UIImage |
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} |
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return nil |
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} |
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func loadThumbnail(thumbnailIndex: Int, thumbnail: @escaping (UIImage, Int) -> ()) -> UIImage? { |
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var image: UIImage? |
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let newItem = items[thumbnailIndex] |
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let u1 = URL(string: newItem.thumbUrlAbsolute) |
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if let URL = u1 { |
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image = imageCache.object(forKey: URL.absoluteString as AnyObject) as? UIImage |
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if (image == nil && (!loading||thumbnailIndex == 0)) { |
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let task: URLSessionDataTask = urlSession!.dataTask(with: URL) { |
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(da, response, error) in |
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if let d = da { |
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if let i = UIImage(data: d) { |
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// println("thumb image loaded \(newItem.thumbUrlAbsolute)") |
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let imageRef = i.cgImage; |
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self.imageCache.setObject(i, forKey: newItem.thumbUrlAbsolute as AnyObject, cost: d.count) |
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DispatchQueue.main.async { |
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thumbnail(i, thumbnailIndex); |
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} |
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} |
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} |
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} |
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task.resume() |
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} |
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} |
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else { |
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print("## Invalid URL: \(newItem.thumbUrlAbsolute)") |
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} |
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return image |
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} |
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} |
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