87 lines
3.0 KiB
Swift
87 lines
3.0 KiB
Swift
//
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// SAAudioAvailabilityRange.swift
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// SwiftAudioPlayer
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//
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// Created by Tanha Kabir on 2019-02-18.
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// Copyright © 2019 Tanha Kabir, Jon Mercer
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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import Foundation
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//Think of it as the grey buffer line from youtube
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public struct SAAudioAvailabilityRange {
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let startingNeedle: Needle
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let durationLoadedByNetwork: Duration
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let predictedDurationToLoad: Duration
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let isPlayable: Bool
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public var bufferingProgress: Double {
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get {
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return (startingNeedle + durationLoadedByNetwork) / predictedDurationToLoad
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}
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}
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public var startingBufferTimePositon: Double {
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get {
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return startingNeedle
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}
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}
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public var totalDurationBuffered: Double {
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get {
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return durationLoadedByNetwork
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}
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}
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public var isReadyForPlaying: Bool {
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get {
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return isPlayable
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}
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}
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var secondsLeftToBuffer: Double {
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get {
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return predictedDurationToLoad - (startingNeedle + durationLoadedByNetwork)
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}
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}
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public func contains(_ needle: Double) -> Bool {
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return needle >= startingNeedle && (needle - startingNeedle) < durationLoadedByNetwork
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}
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public func reachedEndOfAudio(needle: Double) -> Bool {
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var needleAtEnd = false
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if(totalDurationBuffered > 0 && needle > 0) {
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needleAtEnd = needle >= totalDurationBuffered - 5
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}
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// if most of the audio is buffered for long audio or in short audio there isn't many seconds left to buffer it means wwe've reached the end of the audio
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let isBuffered = (bufferingProgress > 0.99 || secondsLeftToBuffer < 5)
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return isBuffered && needleAtEnd
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}
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public func isCompletelyBuffered() -> Bool {
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return startingNeedle + durationLoadedByNetwork >= predictedDurationToLoad
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}
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}
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