From 95d0d92a6f31642a9281fa06cc40b2e7bea35102 Mon Sep 17 00:00:00 2001
From: Dennis Ranke <dennis.ranke@gmail.com>
Date: Thu, 9 Jun 2022 23:36:23 +0200
Subject: [PATCH] first try for a simple repro of firefox resample fail
 (failed)

---
 web/opus-repro.html | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 web/opus-repro.html
diff --git a/web/opus-repro.html b/web/opus-repro.html
new file mode 100644
index 0000000..5f6ff10
--- /dev/null
+++ b/web/opus-repro.html
@@ -0,0 +1,35 @@
+<html>
+    <button onclick="go()">Go!</button>
+    <script>
+        function go() {
+            let audioContext = new AudioContext({sampleRate: 44100});
+
+            let oscillator = new OscillatorNode(audioContext);
+            let gain = new GainNode(audioContext, {gain: 1});
+            oscillator.connect(gain);
+            gain.connect(audioContext.destination);
+            for(let i = 0; i < 4; ++i ) {
+                gain.gain.setValueAtTime(1, i / 2);
+                gain.gain.setValueAtTime(0, i / 2 + 0.3);
+            }
+            oscillator.start();
+            oscillator.stop(2);
+
+            let audioStreamNode = audioContext.createMediaStreamDestination();
+            gain.connect(audioStreamNode);
+            let recorder = new MediaRecorder(audioStreamNode.stream, { mimeType: 'audio/ogg; codecs=opus' });
+
+            let chunks = [];
+            recorder.ondataavailable = e => chunks.push(e.data);
+            recorder.onstop = () => {
+                let blob = new Blob(chunks, {type: 'audio/ogg; codecs=opus'});
+                let url = URL.createObjectURL(blob);
+                let audio = new Audio(url);
+                audio.play();
+            };
+
+            recorder.start();
+            setTimeout(() => recorder.stop(), 2000);
+        }
+    </script>
+</html>
\ No newline at end of file
