From ebfff7e9eb325778b0b2f11800f40f7abb5a7bc3 Mon Sep 17 00:00:00 2001
From: Santiago Lo Coco <se23m504@technikum-wien.at>
Date: Sun, 10 Nov 2024 16:17:28 +0100
Subject: [PATCH] Add video capture (recording) script

---
 Assets/Scripts/VideoCaptureHandler.cs      | 109 +++++++++++++++++++++
 Assets/Scripts/VideoCaptureHandler.cs.meta |  11 +++
 2 files changed, 120 insertions(+)
 create mode 100644 Assets/Scripts/VideoCaptureHandler.cs
 create mode 100644 Assets/Scripts/VideoCaptureHandler.cs.meta

diff --git a/Assets/Scripts/VideoCaptureHandler.cs b/Assets/Scripts/VideoCaptureHandler.cs
new file mode 100644
index 0000000..8e4c347
--- /dev/null
+++ b/Assets/Scripts/VideoCaptureHandler.cs
@@ -0,0 +1,109 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using UnityEngine;
+using UnityEngine.Windows.WebCam;
+using System.IO;
+
+public class VideoCaptureHandler : MonoBehaviour
+{
+    private VideoCapture videoCapture = null;
+
+    public void StartRecordingVideo()
+    {
+#if WINDOWS_UWP && !UNITY_EDITOR
+        VideoCapture.CreateAsync(true, OnVideoCaptureCreated);
+#else
+        VideoCapture.CreateAsync(false, OnVideoCaptureCreated);
+#endif
+    }
+
+    public void ToggleRecordingVideo()
+    {
+        if (videoCapture == null)
+        {
+            StartRecordingVideo();
+        }
+        else if (videoCapture.IsRecording)
+        {
+            StopRecordingVideo();
+        }
+    }
+
+    private void OnVideoCaptureCreated(VideoCapture videoCapture)
+    {
+        if (videoCapture != null)
+        {
+            this.videoCapture = videoCapture;
+
+            Resolution cameraResolution = new Resolution();
+            foreach (Resolution resolution in VideoCapture.SupportedResolutions)
+            {
+                if (resolution.width * resolution.height > cameraResolution.width * cameraResolution.height)
+                {
+                    cameraResolution = resolution;
+                }
+            }
+
+            float cameraFramerate = 0.0f;
+            foreach (float framerate in VideoCapture.GetSupportedFrameRatesForResolution(cameraResolution))
+            {
+                if (framerate > cameraFramerate)
+                {
+                    cameraFramerate = framerate;
+                }
+            }
+
+            CameraParameters cameraParameters = new CameraParameters();
+            cameraParameters.hologramOpacity = 0.75f;
+            cameraParameters.frameRate = cameraFramerate;
+            cameraParameters.cameraResolutionWidth = cameraResolution.width;
+            cameraParameters.cameraResolutionHeight = cameraResolution.height;
+            cameraParameters.pixelFormat = CapturePixelFormat.BGRA32;
+
+            this.videoCapture.StartVideoModeAsync(cameraParameters,
+                                                VideoCapture.AudioState.None,
+                                                OnStartedVideoCaptureMode);
+        }
+        else
+        {
+            Debug.LogError("Failed to create VideoCapture Instance");
+        }
+    }
+
+    private void OnStartedVideoCaptureMode(VideoCapture.VideoCaptureResult result)
+    {
+        if (result.success)
+        {
+            string filename = string.Format("WebView_{0}.mp4", Time.time);
+            string filepath = Path.Combine(Application.persistentDataPath, filename);
+            Debug.Log("Saving Video to: " + filepath);
+
+            videoCapture.StartRecordingAsync(filepath, OnStartedRecordingVideo);
+        }
+    }
+
+    private void OnStartedRecordingVideo(VideoCapture.VideoCaptureResult result)
+    {
+        Debug.Log("Started Recording Video");
+    }
+
+    public void StopRecordingVideo()
+    {
+        Debug.Log("Stopping Video Recording");
+        videoCapture.StopRecordingAsync(OnStoppedRecordingVideo);
+    }
+
+    private void OnStoppedRecordingVideo(VideoCapture.VideoCaptureResult result)
+    {
+        Debug.Log("Stopped Recording Video");
+        videoCapture.StopVideoModeAsync(OnStoppedVideoCaptureMode);
+    }
+
+    private void OnStoppedVideoCaptureMode(VideoCapture.VideoCaptureResult result)
+    {
+        videoCapture.Dispose();
+        videoCapture = null;
+    }
+}
diff --git a/Assets/Scripts/VideoCaptureHandler.cs.meta b/Assets/Scripts/VideoCaptureHandler.cs.meta
new file mode 100644
index 0000000..3f11930
--- /dev/null
+++ b/Assets/Scripts/VideoCaptureHandler.cs.meta
@@ -0,0 +1,11 @@
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+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
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