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yattee/Model/Stream.swift

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import AVFoundation
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import Defaults
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import Foundation
// swiftlint:disable:next final_class
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class Stream: Equatable, Hashable, Identifiable {
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enum Resolution: String, CaseIterable, Comparable, Defaults.Serializable {
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case hd2160p60
case hd2160p50
case hd2160p48
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case hd2160p30
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case hd1440p60
case hd1440p50
case hd1440p48
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case hd1440p30
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case hd1080p60
case hd1080p50
case hd1080p48
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case hd1080p30
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case hd720p60
case hd720p50
case hd720p48
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case hd720p30
case sd480p30
case sd360p30
case sd240p30
case sd144p30
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case unknown
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var name: String {
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"\(height)p\(refreshRate != -1 && refreshRate != 30 ? ", \(refreshRate) fps" : "")"
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}
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var height: Int {
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if self == .unknown {
return -1
}
let resolutionPart = rawValue.components(separatedBy: "p").first!
return Int(resolutionPart.components(separatedBy: CharacterSet.decimalDigits.inverted).joined())!
}
var refreshRate: Int {
if self == .unknown {
return -1
}
let refreshRatePart = rawValue.components(separatedBy: "p")[1]
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if refreshRatePart.isEmpty {
return 30
}
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return Int(refreshRatePart.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()) ?? -1
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}
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static func from(resolution: String, fps: Int? = nil) -> Resolution {
allCases.first { $0.rawValue.contains(resolution) && $0.refreshRate == (fps ?? 30) } ?? .unknown
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}
static func < (lhs: Resolution, rhs: Resolution) -> Bool {
lhs.height == rhs.height ? (lhs.refreshRate < rhs.refreshRate) : (lhs.height < rhs.height)
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}
}
enum Kind: String, Comparable {
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case stream, adaptive, hls
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private var sortOrder: Int {
switch self {
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case .hls:
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return 0
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case .stream:
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return 1
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case .adaptive:
return 2
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}
}
static func < (lhs: Kind, rhs: Kind) -> Bool {
lhs.sortOrder < rhs.sortOrder
}
}
enum Format: String, Comparable {
case webm
case avc1
case av1
case mp4
case unknown
private var sortOrder: Int {
switch self {
case .mp4:
return 0
case .avc1:
return 1
case .av1:
return 2
case .webm:
return 3
case .unknown:
return 4
}
}
static func < (lhs: Self, rhs: Self) -> Bool {
lhs.sortOrder < rhs.sortOrder
}
var description: String {
switch self {
case .webm:
return "WebM"
default:
return rawValue.uppercased()
}
}
static func from(_ string: String) -> Self {
let lowercased = string.lowercased()
if lowercased.contains("webm") {
return .webm
} else if lowercased.contains("avc1") {
return .avc1
} else if lowercased.contains("av01") {
return .av1
} else if lowercased.contains("mpeg_4") || lowercased.contains("mp4") {
return .mp4
} else {
return .unknown
}
}
}
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let id = UUID()
var instance: Instance!
var audioAsset: AVURLAsset!
var videoAsset: AVURLAsset!
var hlsURL: URL!
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var resolution: Resolution!
var kind: Kind!
var format: Format!
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var encoding: String?
var videoFormat: String?
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init(
instance: Instance? = nil,
audioAsset: AVURLAsset? = nil,
videoAsset: AVURLAsset? = nil,
hlsURL: URL? = nil,
resolution: Resolution? = nil,
kind: Kind = .hls,
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encoding: String? = nil,
videoFormat: String? = nil
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) {
self.instance = instance
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self.audioAsset = audioAsset
self.videoAsset = videoAsset
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self.hlsURL = hlsURL
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self.resolution = resolution
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self.kind = kind
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self.encoding = encoding
format = .from(videoFormat ?? "")
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}
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var quality: String {
kind == .hls ? "adaptive (HLS)" : "\(resolution.name)\(kind == .stream ? " (\(kind.rawValue))" : "")"
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}
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var shortQuality: String {
if kind == .hls {
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return "HLS"
} else {
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return resolution?.name ?? "?"
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}
}
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var description: String {
let instanceString = instance.isNil ? "" : " - (\(instance!.description))"
return "\(resolutionAndFormat)\(instanceString)"
}
var resolutionAndFormat: String {
let formatString = format == .unknown ? "" : " (\(format.description))"
return "\(quality)\(formatString)"
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}
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var assets: [AVURLAsset] {
[audioAsset, videoAsset]
}
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var videoAssetContainsAudio: Bool {
assets.dropFirst().allSatisfy { $0.url == assets.first!.url }
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}
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var singleAssetURL: URL? {
if kind == .hls {
return hlsURL
} else if videoAssetContainsAudio {
return videoAsset.url
}
return nil
}
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static func == (lhs: Stream, rhs: Stream) -> Bool {
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lhs.id == rhs.id
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}
func hash(into hasher: inout Hasher) {
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hasher.combine(videoAsset?.url)
hasher.combine(audioAsset?.url)
hasher.combine(hlsURL)
}
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}