git.r.bdr.sh / rbdr / captura / blame
| Commit | Line | Data |
|---|---|---|
| c9b9e1d6 RBR |
1 | import AppKit |
| 2 | import AVFoundation | |
| 3 | ||
| 4 | class CapturaCaptureSession: AVCaptureSession, AVCaptureFileOutputRecordingDelegate, AVCaptureVideoDataOutputSampleBufferDelegate { | |
| 5 | ||
| 6 | let videoOutput = AVCaptureVideoDataOutput() | |
| 7 | let movieFileOutput = AVCaptureMovieFileOutput() | |
| 8 | var receivedFrames = false | |
| 9 | ||
| 10 | init(_ screen: NSScreen, box: NSRect) { | |
| 11 | super.init() | |
| 12 | ||
| 13 | let displayId = screen.deviceDescription[NSDeviceDescriptionKey("NSScreenNumber")] as! CGDirectDisplayID | |
| 14 | let screenInput = AVCaptureScreenInput(displayID: displayId) | |
| 082b61f3 RBR |
15 | var croppingBox = NSOffsetRect(box, -screen.frame.origin.x, -screen.frame.origin.y) |
| 16 | if croppingBox.width.truncatingRemainder(dividingBy: 2) != 0 { | |
| 17 | croppingBox.size.width -= 1 | |
| 18 | } | |
| 19 | screenInput?.cropRect = croppingBox.insetBy(dx: 1, dy: 1) | |
| c9b9e1d6 RBR |
20 | |
| 21 | if self.canAddInput(screenInput!) { | |
| 22 | self.addInput(screenInput!) | |
| 23 | } | |
| 24 | ||
| 25 | videoOutput.setSampleBufferDelegate(self, queue: Dispatch.DispatchQueue(label: "sample buffer delegate", attributes: [])) | |
| 26 | ||
| 27 | if self.canAddOutput(videoOutput) { | |
| 28 | self.addOutput(videoOutput) | |
| 29 | } | |
| 30 | ||
| 31 | if self.canAddOutput(movieFileOutput) { | |
| 32 | self.addOutput(movieFileOutput) | |
| 33 | } | |
| 34 | } | |
| 35 | ||
| 36 | func startRecording() { | |
| 37 | receivedFrames = false | |
| 38 | self.startRunning() | |
| 39 | ||
| 40 | DispatchQueue.main.asyncAfter(deadline: .now() + 1) { | |
| 41 | if !self.receivedFrames { | |
| 42 | NotificationCenter.default.post(name: .failedToStart, object: nil, userInfo: nil) | |
| 43 | } | |
| 44 | } | |
| 45 | } | |
| 46 | ||
| 47 | func startRecording(to url: URL) { | |
| 48 | self.startRecording() | |
| 49 | movieFileOutput.startRecording(to: url, recordingDelegate: self) | |
| 50 | } | |
| 51 | ||
| 52 | // MARK: - AVCaptureVideoDataOutputSampleBufferDelegate Implementation | |
| 53 | ||
| 54 | func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) { | |
| 55 | receivedFrames = true | |
| 56 | ||
| 57 | guard let imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer) else { return } | |
| 58 | NotificationCenter.default.post(name: .receivedFrame, object: nil, userInfo: ["frame": imageBuffer]) | |
| 59 | } | |
| 60 | ||
| 61 | // MARK: - AVCaptureFileOutputRecordingDelegate Implementation | |
| 62 | ||
| 63 | func fileOutput(_ output: AVCaptureFileOutput, didFinishRecordingTo outputFileURL: URL, from connections: [AVCaptureConnection], error: Error?) {} | |
| 64 | } |