53 lines
1.6 KiB
Swift
53 lines
1.6 KiB
Swift
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//
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// AVCaptureOutput+mirror.swift
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// mrousavy
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//
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// Created by Marc Rousavy on 18.01.21.
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// Copyright © 2021 mrousavy. All rights reserved.
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//
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import AVFoundation
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extension AVCaptureOutput {
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/**
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Mirrors the video output if possible.
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*/
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func mirror() {
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connections.forEach { connection in
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if connection.isVideoMirroringSupported {
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connection.automaticallyAdjustsVideoMirroring = false
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connection.isVideoMirrored = true
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}
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}
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}
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/**
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Sets the target orientation of the video output.
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This does not always physically rotate image buffers.
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- For Preview, an orientation hint is used to rotate the layer/view itself.
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- For Photos, an EXIF tag is used.
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- For Videos, the buffers are physically rotated if available, since we use an AVCaptureVideoDataOutput instead of an AVCaptureMovieFileOutput.
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*/
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func setOrientation(_ orientation: Orientation) {
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// Camera Sensors are always in 90deg rotation.
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// We are setting the target rotation here, so we need to rotate by 90deg once.
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let cameraOrientation = orientation.rotateRight()
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// Set orientation for each connection
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connections.forEach { connection in
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// TODO: Use this once Xcode 15 is rolled out
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// if #available(iOS 17.0, *) {
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// let degrees = cameraOrientation.toDegrees()
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// if connection.isVideoRotationAngleSupported(degrees) {
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// connection.videoRotationAngle = degrees
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// }
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// } else {
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if connection.isVideoOrientationSupported {
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connection.videoOrientation = cameraOrientation.toAVCaptureVideoOrientation()
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}
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// }
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}
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}
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}
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