successfully reprod audio recording in firefox

first try for a simple repro of firefox resample fail (failed)
improve formatting of change log
2026-01-20 19:26:43 +01:00 · 2022-06-09 23:54:43 +02:00 · 2022-06-09 23:36:23 +02:00 · 2022-05-09 01:13:20 +02:00
3 changed files with 71 additions and 14 deletions
--- a/site/content/_index.md
+++ b/site/content/_index.md
@@ -41,11 +41,11 @@ Changes:
 * [add sound support!](docs#sound)
 * add support to redirect text output to the console for debugging using control code 6
 * update curlywas:
-* * add support for `else if`
-* * add support for escape sequences in strings
-* * add support for char literals
-* * add support for binop-assignment, eg. `+=`, `^=`, `<<=` etc. (also support for the tee operator: `+:=`)
-* * "integer constant cast to float" literal syntax in CurlyWas (ex. `1_f` is equivalent to `1 as f32`)
+  * add support for `else if`
+  * add support for escape sequences in strings
+  * add support for char literals
+  * add support for binop-assignment, eg. `+=`, `^=`, `<<=` etc. (also support for the tee operator: `+:=`)
+  * "integer constant cast to float" literal syntax in CurlyWas (ex. `1_f` is equivalent to `1 as f32`)

 ### Older versions

--- a/site/content/versions.md
+++ b/site/content/versions.md
@@ -14,11 +14,11 @@ Changes:
 * [add sound support!](docs#sound)
 * add support to redirect text output to the console for debugging using control code 6
 * update curlywas:
-* * add support for `else if`
-* * add support for escape sequences in strings
-* * add support for char literals
-* * add support for binop-assignment, eg. `+=`, `^=`, `<<=` etc. (also support for the tee operator: `+:=`)
-* * "integer constant cast to float" literal syntax in CurlyWas (ex. `1_f` is equivalent to `1 as f32`)
+  * add support for `else if`
+  * add support for escape sequences in strings
+  * add support for char literals
+  * add support for binop-assignment, eg. `+=`, `^=`, `<<=` etc. (also support for the tee operator: `+:=`)
+  * "integer constant cast to float" literal syntax in CurlyWas (ex. `1_f` is equivalent to `1 as f32`)

 ### v0.2.0-rc3

@@ -33,10 +33,10 @@ Changes:
  consecutive frame numbers, provided the module can be run at 60 fps
 * add support to redirect text output to the console for debugging using control code 6
 * update curlywas:
-* * add support for `else if`
-* * add support for escape sequences in strings
-* * add support for char literals
-* * add support for binop-assignment, eg. `+=`, `^=`, `<<=` etc. (also support for the tee operator: `+:=`)
+  * add support for `else if`
+  * add support for escape sequences in strings
+  * add support for char literals
+  * add support for binop-assignment, eg. `+=`, `^=`, `<<=` etc. (also support for the tee operator: `+:=`)

 ### v0.2.0-rc2

--- a/web/opus-repro.html
+++ b/web/opus-repro.html
@@ -0,0 +1,57 @@
+<html>
+    <button onclick="go()">Go!</button>
+    <canvas id="screen" width="320" height="240"></canvas>
+    <video id="video"></video>
+    <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 < 8; ++i ) {
+                gain.gain.setValueAtTime(1, i / 2);
+                gain.gain.setValueAtTime(0, i / 2 + 0.3);
+            }
+            oscillator.start();
+            oscillator.stop(4);
+
+            let screen = document.getElementById('screen');
+            let context = screen.getContext('2d');
+            let startTime = Date.now();
+            let drawFrame = () => {
+                let time = Date.now() - startTime;
+                context.fillStyle = 'white';
+                context.fillRect(0, 0, 320, 240);
+                if(time < 4000) {
+                    if(time % 500 < 300) {
+                        context.fillStyle = 'black';
+                        context.fillRect(time / 15, 50, 50, 50);
+                    }
+                    window.requestAnimationFrame(drawFrame);
+                }
+            };
+            drawFrame();
+
+            let stream = screen.captureStream();
+            let audioStreamNode = audioContext.createMediaStreamDestination();
+            gain.connect(audioStreamNode);
+            stream.addTrack(audioStreamNode.stream.getAudioTracks()[0]);
+            let recorder = new MediaRecorder(stream, { mimeType: 'video/webm' });
+
+            let chunks = [];
+            recorder.ondataavailable = e => chunks.push(e.data);
+            recorder.onstop = () => {
+                let blob = new Blob(chunks, {type: 'video/webm'});
+                let url = URL.createObjectURL(blob);
+                let video = document.getElementById('video');
+                video.src = url;
+                video.play();
+            };
+
+            recorder.start();
+            setTimeout(() => recorder.stop(), 4000);
+        }
+    </script>
+</html>
Author	SHA1	Message	Date
Dennis Ranke	e0450c9039	successfully reprod audio recording in firefox	2022-06-09 23:54:43 +02:00
Dennis Ranke	95d0d92a6f	first try for a simple repro of firefox resample fail (failed)	2022-06-09 23:36:23 +02:00
Dennis Ranke	7a6dd0ab6d	improve formatting of change log	2022-05-09 01:13:20 +02:00