45 lines
1.5 KiB
Swift
45 lines
1.5 KiB
Swift
//
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// AVCaptureDevice.Format+isBetterThan.swift
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// mrousavy
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//
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// Created by Marc Rousavy on 19.12.20.
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// Copyright © 2020 mrousavy. All rights reserved.
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//
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import AVFoundation
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extension AVCaptureDevice.Format {
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/** Compares the current Format to the given format and returns true if the current format has either:
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* 1. Higher still image capture dimensions
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* 2. Higher video format dimensions (iOS 13.0)
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* 3. Higher FPS
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*/
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func isBetterThan(_ other: AVCaptureDevice.Format) -> Bool {
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// compare still image dimensions
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let leftDimensions = highResolutionStillImageDimensions
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let rightDimensions = other.highResolutionStillImageDimensions
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if leftDimensions.height * leftDimensions.width > rightDimensions.height * rightDimensions.width {
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return true
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}
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if #available(iOS 13.0, *) {
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// compare video dimensions
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let leftVideo = self.formatDescription.presentationDimensions()
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let rightVideo = other.formatDescription.presentationDimensions()
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if leftVideo.height * leftVideo.width > rightVideo.height * rightVideo.width {
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return true
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}
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}
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// compare max fps
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if let leftMaxFps = videoSupportedFrameRateRanges.max(by: { $0.maxFrameRate > $1.maxFrameRate }),
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let rightMaxFps = other.videoSupportedFrameRateRanges.max(by: { $0.maxFrameRate > $1.maxFrameRate }) {
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if leftMaxFps.maxFrameRate > rightMaxFps.maxFrameRate {
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return true
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}
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}
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return false
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}
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}
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