cd0b413706
Moves everything Camera related into `core/` / `Core/` so that it is better encapsulated from React Native.
Benefits:
1. Code is much better organized. Should be easier for collaborators now, and cleaner codebase for me.
2. Locking is fully atomically as you can now only configure the session through a lock/Mutex which is batch-overridable
* On iOS, this makes Camera startup time **MUCH** faster, I measured speedups from **1.5 seconds** to only **240 milliseconds** since we only lock/commit once! 🚀
* On Android, this fixes a few out-of-sync/concurrency issues like "Capture Request contains unconfigured Input/Output Surface!" since it is now a single lock-operation! 💪
3. It is easier to integrate VisionCamera outside of React Native (e.g. Native iOS Apps, NativeScript, Flutter, etc)
With this PR, VisionCamera V3 is up to **7x** faster than V2
53 lines
1.6 KiB
Swift
53 lines
1.6 KiB
Swift
//
|
|
// AVCaptureOutput+mirror.swift
|
|
// mrousavy
|
|
//
|
|
// Created by Marc Rousavy on 18.01.21.
|
|
// Copyright © 2021 mrousavy. All rights reserved.
|
|
//
|
|
|
|
import AVFoundation
|
|
|
|
extension AVCaptureOutput {
|
|
/**
|
|
Mirrors the video output if possible.
|
|
*/
|
|
func mirror() {
|
|
connections.forEach { connection in
|
|
if connection.isVideoMirroringSupported {
|
|
connection.automaticallyAdjustsVideoMirroring = false
|
|
connection.isVideoMirrored = true
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
Sets the target orientation of the video output.
|
|
This does not always physically rotate image buffers.
|
|
|
|
- For Preview, an orientation hint is used to rotate the layer/view itself.
|
|
- For Photos, an EXIF tag is used.
|
|
- For Videos, the buffers are physically rotated if available, since we use an AVCaptureVideoDataOutput instead of an AVCaptureMovieFileOutput.
|
|
*/
|
|
func setOrientation(_ orientation: Orientation) {
|
|
// Camera Sensors are always in 90deg rotation.
|
|
// We are setting the target rotation here, so we need to rotate by 90deg once.
|
|
let cameraOrientation = orientation.rotateRight()
|
|
|
|
// Set orientation for each connection
|
|
connections.forEach { connection in
|
|
// TODO: Use this once Xcode 15 is rolled out
|
|
// if #available(iOS 17.0, *) {
|
|
// let degrees = cameraOrientation.toDegrees()
|
|
// if connection.isVideoRotationAngleSupported(degrees) {
|
|
// connection.videoRotationAngle = degrees
|
|
// }
|
|
// } else {
|
|
if connection.isVideoOrientationSupported {
|
|
connection.videoOrientation = cameraOrientation.toAVCaptureVideoOrientation()
|
|
}
|
|
// }
|
|
}
|
|
}
|
|
}
|