From 683e9daf403df3dfedecb9ac5193901815d4ba47 Mon Sep 17 00:00:00 2001
From: Simon Ott <78349773+ottsimon@users.noreply.github.com>
Date: Thu, 19 Dec 2024 14:19:38 +0100
Subject: [PATCH 1/2] Apply the webm duration fix only to webm files

---
 src/steps/recording/recorder.tsx | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/steps/recording/recorder.tsx b/src/steps/recording/recorder.tsx
index 3f322694..17ad574c 100644
--- a/src/steps/recording/recorder.tsx
+++ b/src/steps/recording/recorder.tsx
@@ -64,7 +64,15 @@ export default class Recorder {
 
   #onStop = async (_event: Event) => {
     const mimeType = this.#data[0]?.type || this.#recorder.mimeType;
-    const media = await fixWebmDuration(new Blob(this.#data, { type: mimeType }));
+    const mainMimeType = mimeType.split(";")[0].trim();
+    let media;
+
+    if (mainMimeType === "video/webm") {
+      media = await fixWebmDuration(new Blob(this.#data, { type: mimeType }));
+    } else {
+      media = new Blob(this.#data, { type: mimeType });
+    }
+
     const url = URL.createObjectURL(media);
 
     this.#reset();

From f6b29135c03e11bbf4e630fc6d542c2560000855 Mon Sep 17 00:00:00 2001
From: Simon Ott <78349773+ottsimon@users.noreply.github.com>
Date: Thu, 19 Dec 2024 15:45:36 +0100
Subject: [PATCH 2/2] Apply fix also for mkv files

---
 src/steps/recording/recorder.tsx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/steps/recording/recorder.tsx b/src/steps/recording/recorder.tsx
index 17ad574c..8cdaf117 100644
--- a/src/steps/recording/recorder.tsx
+++ b/src/steps/recording/recorder.tsx
@@ -67,7 +67,9 @@ export default class Recorder {
     const mainMimeType = mimeType.split(";")[0].trim();
     let media;
 
-    if (mainMimeType === "video/webm") {
+    const fixMimeTypes = ["video/webm", "video/x-matroska"];
+
+    if (fixMimeTypes.includes(mainMimeType)) {
       media = await fixWebmDuration(new Blob(this.#data, { type: mimeType }));
     } else {
       media = new Blob(this.#data, { type: mimeType });