setLocalStream

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const canvas = document.createElement("canvas");
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const ctx = canvas.getContext("2d");
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// Set canvas size
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canvas.width = 400;
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canvas.height = 400;
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// Draw circle
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ctx.beginPath();
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ctx.arc(200, 200, 150, 0, 2 * Math.PI);
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ctx.fillStyle = "lightblue";
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ctx.fill();
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// Draw eyes
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ctx.beginPath();
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ctx.arc(150, 150, 30, 0, 2 * Math.PI);
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ctx.arc(250, 150, 30, 0, 2 * Math.PI);
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ctx.fillStyle = "black";
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ctx.fill();
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// Get the media stream
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const stream = canvas.captureStream(25); // 25 FPS
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// Stream the canvas
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await roomSession.setLocalStream(stream);