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yattee/Model/Stream.swift
Toni Förster a45522f710
Improved stream resolution handling
Invidious now reports the actual resolution and doesn’t hardcode them anymore.

See: https://github.com/iv-org/invidious/pull/4586

- Extended the list of possible resolutions in the StreamModel
- trigger videoLoadFailureHandler if no streams are available
- more logging for backend.bestPlayable

Signed-off-by: Toni Förster <toni.foerster@gmail.com>
2024-08-25 17:23:04 +02:00

481 lines
13 KiB
Swift

import AVFoundation
import Defaults
import Foundation
// swiftlint:disable:next final_class
class Stream: Equatable, Hashable, Identifiable {
enum Resolution: String, CaseIterable, Comparable, Defaults.Serializable {
// Some 16:19 and 16:10 resolutions are also used in 2:1 videos
// 8K UHD (16:9) Resolutions
case hd4320p60
case hd4320p50
case hd4320p48
case hd4320p30
case hd4320p25
case hd4320p24
// 5K (16:9) Resolutions
case hd2560p60
case hd2560p50
case hd2560p48
case hd2560p30
case hd2560p25
case hd2560p24
// 2:1 Aspect Ratio (Univisium) Resolutions
case hd2880p60
case hd2880p50
case hd2880p48
case hd2880p30
case hd2880p25
case hd2880p24
// 16:10 Resolutions
case hd2400p60
case hd2400p50
case hd2400p48
case hd2400p30
case hd2400p25
case hd2400p24
// 16:9 Resolutions
case hd2160p60
case hd2160p50
case hd2160p48
case hd2160p30
case hd2160p25
case hd2160p24
// 16:10 Resolutions
case hd1600p60
case hd1600p50
case hd1600p48
case hd1600p30
case hd1600p25
case hd1600p24
// 16:9 Resolutions
case hd1440p60
case hd1440p50
case hd1440p48
case hd1440p30
case hd1440p25
case hd1440p24
// 16:10 Resolutions
case hd1280p60
case hd1280p50
case hd1280p48
case hd1280p30
case hd1280p25
case hd1280p24
// 16:10 Resolutions
case hd1200p60
case hd1200p50
case hd1200p48
case hd1200p30
case hd1200p25
case hd1200p24
// 16:9 Resolutions
case hd1080p60
case hd1080p50
case hd1080p48
case hd1080p30
case hd1080p25
case hd1080p24
// 16:10 Resolutions
case hd1050p60
case hd1050p50
case hd1050p48
case hd1050p30
case hd1050p25
case hd1050p24
// 16:9 Resolutions
case hd960p60
case hd960p50
case hd960p48
case hd960p30
case hd960p25
case hd960p24
// 16:10 Resolutions
case hd900p60
case hd900p50
case hd900p48
case hd900p30
case hd900p25
case hd900p24
// 16:10 Resolutions
case hd800p60
case hd800p50
case hd800p48
case hd800p30
case hd800p25
case hd800p24
// 16:9 Resolutions
case hd720p60
case hd720p50
case hd720p48
case hd720p30
case hd720p25
case hd720p24
// Standard Definition (SD) Resolutions
case sd854p30
case sd854p25
case sd768p30
case sd768p25
case sd640p30
case sd640p25
case sd480p30
case sd480p25
case sd428p30
case sd428p25
case sd360p30
case sd360p25
case sd320p30
case sd320p25
case sd240p30
case sd240p25
case sd214p30
case sd214p25
case sd144p30
case sd144p25
case sd128p30
case sd128p25
case unknown
var name: String {
"\(height)p\(refreshRate != -1 && refreshRate != 30 ? ", \(refreshRate) fps" : "")"
}
var height: Int {
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]
if refreshRatePart.isEmpty {
return 30
}
return Int(refreshRatePart.components(separatedBy: CharacterSet.decimalDigits.inverted).joined()) ?? -1
}
// These values are an approximation.
// https://support.google.com/youtube/answer/1722171?hl=en#zippy=%2Cbitrate
var bitrate: Int {
switch self {
// 8K UHD (16:9) Resolutions
case .hd4320p60, .hd4320p50, .hd4320p48, .hd4320p30, .hd4320p25, .hd4320p24:
return 85_000_000 // 85 Mbit/s
// 5K (16:9) Resolutions
case .hd2880p60, .hd2880p50, .hd2880p48, .hd2880p30, .hd2880p25, .hd2880p24:
return 45_000_000 // 45 Mbit/s
// 2:1 Aspect Ratio (Univisium) Resolutions
case .hd2560p60, .hd2560p50, .hd2560p48, .hd2560p30, .hd2560p25, .hd2560p24:
return 30_000_000 // 30 Mbit/s
// 16:10 Resolutions
case .hd2400p60, .hd2400p50, .hd2400p48, .hd2400p30, .hd2400p25, .hd2400p24:
return 35_000_000 // 35 Mbit/s
// 4K UHD (16:9) Resolutions
case .hd2160p60, .hd2160p50, .hd2160p48, .hd2160p30, .hd2160p25, .hd2160p24:
return 56_000_000 // 56 Mbit/s
// 16:10 Resolutions
case .hd1600p60, .hd1600p50, .hd1600p48, .hd1600p30, .hd1600p25, .hd1600p24:
return 20_000_000 // 20 Mbit/s
// 1440p (16:9) Resolutions
case .hd1440p60, .hd1440p50, .hd1440p48, .hd1440p30, .hd1440p25, .hd1440p24:
return 24_000_000 // 24 Mbit/s
// 1280p (16:10) Resolutions
case .hd1280p60, .hd1280p50, .hd1280p48, .hd1280p30, .hd1280p25, .hd1280p24:
return 15_000_000 // 15 Mbit/s
// 1200p (16:10) Resolutions
case .hd1200p60, .hd1200p50, .hd1200p48, .hd1200p30, .hd1200p25, .hd1200p24:
return 18_000_000 // 18 Mbit/s
// 1080p (16:9) Resolutions
case .hd1080p60, .hd1080p50, .hd1080p48, .hd1080p30, .hd1080p25, .hd1080p24:
return 12_000_000 // 12 Mbit/s
// 1050p (16:10) Resolutions
case .hd1050p60, .hd1050p50, .hd1050p48, .hd1050p30, .hd1050p25, .hd1050p24:
return 10_000_000 // 10 Mbit/s
// 960p Resolutions
case .hd960p60, .hd960p50, .hd960p48, .hd960p30, .hd960p25, .hd960p24:
return 8_000_000 // 8 Mbit/s
// 900p (16:10) Resolutions
case .hd900p60, .hd900p50, .hd900p48, .hd900p30, .hd900p25, .hd900p24:
return 7_000_000 // 7 Mbit/s
// 800p (16:10) Resolutions
case .hd800p60, .hd800p50, .hd800p48, .hd800p30, .hd800p25, .hd800p24:
return 6_000_000 // 6 Mbit/s
// 720p (16:9) Resolutions
case .hd720p60, .hd720p50, .hd720p48, .hd720p30, .hd720p25, .hd720p24:
return 9_500_000 // 9.5 Mbit/s
// Standard Definition (SD) Resolutions
case .sd854p30, .sd854p25, .sd768p30, .sd768p25, .sd640p30, .sd640p25:
return 4_000_000 // 4 Mbit/s
case .sd480p30, .sd480p25:
return 2_500_000 // 2.5 Mbit/s
case .sd428p30, .sd428p25:
return 2_000_000 // 2 Mbit/s
case .sd360p30, .sd360p25:
return 1_500_000 // 1.5 Mbit/s
case .sd320p30, .sd320p25:
return 1_200_000 // 1.2 Mbit/s
case .sd240p30, .sd240p25:
return 1_000_000 // 1 Mbit/s
case .sd214p30, .sd214p25:
return 800_000 // 0.8 Mbit/s
case .sd144p30, .sd144p25:
return 600_000 // 0.6 Mbit/s
case .sd128p30, .sd128p25:
return 400_000 // 0.4 Mbit/s
case .unknown:
return 0
}
}
static func from(resolution: String, fps: Int? = nil) -> Self {
allCases.first { $0.rawValue.contains(resolution) && $0.refreshRate == (fps ?? 30) } ?? .unknown
}
static func < (lhs: Self, rhs: Self) -> Bool {
lhs.height == rhs.height ? (lhs.refreshRate < rhs.refreshRate) : (lhs.height < rhs.height)
}
}
enum Kind: String, Comparable {
case hls, adaptive, stream
private var sortOrder: Int {
switch self {
case .hls:
return 0
case .stream:
return 1
case .adaptive:
return 2
}
}
static func < (lhs: Self, rhs: Self) -> Bool {
lhs.sortOrder < rhs.sortOrder
}
}
enum Format: String {
case avc1
case mp4
case av1
case webm
case hls
case stream
case unknown
var description: String {
switch self {
case .webm:
return "WebM"
case .hls:
return "adaptive (HLS)"
case .stream:
return "Stream"
default:
return rawValue.uppercased()
}
}
static func from(_ string: String) -> Self {
let lowercased = string.lowercased()
if lowercased.contains("avc1") {
return .avc1
}
if lowercased.contains("mpeg_4") || lowercased.contains("mp4") {
return .mp4
}
if lowercased.contains("av01") {
return .av1
}
if lowercased.contains("webm") {
return .webm
}
if lowercased.contains("stream") {
return .stream
}
if lowercased.contains("hls") {
return .hls
}
return .unknown
}
}
let id = UUID()
var instance: Instance!
var audioAsset: AVURLAsset!
var videoAsset: AVURLAsset!
var hlsURL: URL!
var localURL: URL!
var resolution: Resolution!
var kind: Kind!
var format: Format!
var encoding: String?
var videoFormat: String?
var bitrate: Int?
var requestRange: String?
init(
instance: Instance? = nil,
audioAsset: AVURLAsset? = nil,
videoAsset: AVURLAsset? = nil,
hlsURL: URL? = nil,
localURL: URL? = nil,
resolution: Resolution? = nil,
kind: Kind = .hls,
encoding: String? = nil,
videoFormat: String? = nil,
bitrate: Int? = nil,
requestRange: String? = nil
) {
self.instance = instance
self.audioAsset = audioAsset
self.videoAsset = videoAsset
self.hlsURL = hlsURL
self.localURL = localURL
self.resolution = resolution
self.kind = kind
self.encoding = encoding
format = .from(videoFormat ?? "")
self.bitrate = bitrate
self.requestRange = requestRange
}
var isLocal: Bool {
localURL != nil
}
var isHLS: Bool {
hlsURL != nil
}
var quality: String {
guard localURL.isNil else { return "Opened File" }
if kind == .hls {
return "adaptive (HLS)"
}
return resolution.name
}
var shortQuality: String {
guard localURL.isNil else { return "File" }
if kind == .hls {
return "adaptive (HLS)"
}
if kind == .stream {
return resolution.name
}
return resolutionAndFormat
}
var description: String {
guard localURL.isNil else { return resolutionAndFormat }
let instanceString = instance.isNil ? "" : " - (\(instance!.description))"
return format != .hls ? "\(resolutionAndFormat)\(instanceString)" : "adaptive (HLS)\(instanceString)"
}
var resolutionAndFormat: String {
let formatString = format == .unknown ? "" : " (\(format.description))"
return "\(quality)\(formatString)"
}
var assets: [AVURLAsset] {
[audioAsset, videoAsset]
}
var videoAssetContainsAudio: Bool {
assets.dropFirst().allSatisfy { $0.url == assets.first!.url }
}
var singleAssetURL: URL? {
guard localURL.isNil else {
return URLBookmarkModel.shared.loadBookmark(localURL) ?? localURL
}
if kind == .hls {
return hlsURL
}
if videoAssetContainsAudio {
return videoAsset.url
}
return nil
}
static func == (lhs: Stream, rhs: Stream) -> Bool {
lhs.id == rhs.id
}
func hash(into hasher: inout Hasher) {
if let url = videoAsset?.url {
hasher.combine(url)
}
if let url = audioAsset?.url {
hasher.combine(url)
}
if let url = hlsURL {
hasher.combine(url)
}
}
}