forked from mirrors/gecko-dev
24 lines
692 B
HTML
24 lines
692 B
HTML
<!DOCTYPE html>
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<html>
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<body>
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<video id="v" controls></video>
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<script>
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const v = document.getElementById("v");
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function audioTrack() {
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const ctx = new AudioContext(), oscillator = ctx.createOscillator();
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const dst = oscillator.connect(ctx.createMediaStreamDestination());
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oscillator.start();
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return dst.stream.getAudioTracks()[0];
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}
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function videoTrack(width = 640, height = 480) {
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const canvas = Object.assign(document.createElement("canvas"), {width, height});
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canvas.getContext('2d').fillRect(0, 0, width, height);
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return canvas.captureStream(10).getVideoTracks()[0];
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}
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onload = () => v.srcObject = new MediaStream([videoTrack(), audioTrack()]);
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</script>
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</body>
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</html>
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