From 43154669772ef38d51788b8d1d6633690f58fa33 Mon Sep 17 00:00:00 2001
From: Ali Abid <you@example.comgit>
Date: Wed, 1 Dec 2021 01:52:26 +0000
Subject: [PATCH] fix video recorder for iphone

---
 frontend/src/components/input/video.jsx | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/frontend/src/components/input/video.jsx b/frontend/src/components/input/video.jsx
index f4971aaee8..504697f8a4 100644
--- a/frontend/src/components/input/video.jsx
+++ b/frontend/src/components/input/video.jsx
@@ -28,25 +28,38 @@ class VideoInput extends BaseComponent {
   record = async () => {
     if (this.state.recording) {
       this.media_recorder.stop();
-      let video_blob = new Blob(this.blobs_recorded, { type: 'video/webm' });
+      let video_blob = new Blob(this.blobs_recorded, { type: this.mimeType });
       var ReaderObj = new FileReader();
       ReaderObj.onload = (function(e) {
+        let file_name = "sample." + this.mimeType.substring(6);
         this.props.handleChange({
-          name: "sample.mp4",
+          name: file_name,
           data: e.target.result,
           is_example: false
         });
       }).bind(this);
 
       ReaderObj.readAsDataURL(video_blob);
-
       this.setState({ recording: false });
     } else {
       this.blobs_recorded = [];
       this.camera_stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: true });
       this.videoRecorder.current.srcObject = this.camera_stream;
       this.videoRecorder.current.volume = 0;
-      this.media_recorder = new MediaRecorder(this.camera_stream, { mimeType: 'video/mp4' });
+      let selectedMimeType = null;
+      let validMimeTypes = ["video/webm", "video/mp4"];
+      for (let mimeType of validMimeTypes) {
+        if (MediaRecorder.isTypeSupported(mimeType)) {
+          selectedMimeType = mimeType;
+          break;
+        }  
+      }
+      if (selectedMimeType === null) {
+        console.error("No supported MediaRecorder mimeType");
+        return;
+      }
+      this.media_recorder = new MediaRecorder(this.camera_stream, {mimeType: selectedMimeType});
+      this.mimeType = selectedMimeType;
       this.media_recorder.addEventListener('dataavailable', (function (e) {
         this.blobs_recorded.push(e.data);
       }).bind(this));