style(cctv): format live video integration

src/ui/cctvVideo.js

@@ -1,5 +1,12 @@
 /** Paint a second surface from the projection decoder, bounded to 640px/15 fps. */
-export function createCctvVideoSurface(canvas, getVideo, { requestFrame = requestAnimationFrame, cancelFrame = cancelAnimationFrame } = {}) {
+export function createCctvVideoSurface(
+  canvas,
+  getVideo,
+  {
+    requestFrame = requestAnimationFrame,
+    cancelFrame = cancelAnimationFrame,
+  } = {},
+) {
   const ctx = canvas.getContext('2d');
   let handle = 0;
   let stopped = false;
@@ -14,18 +21,39 @@ export function createCctvVideoSurface(canvas, getVideo, { requestFrame = reques
       previous = video;
       previousTime = -1;
     }
-    if (ctx && video?.readyState >= 2 && video.videoWidth > 0 && video.videoHeight > 0 && now - paintedAt >= 1000 / 15 && video.currentTime !== previousTime) {
+    if (
+      ctx &&
+      video?.readyState >= 2 &&
+      video.videoWidth > 0 &&
+      video.videoHeight > 0 &&
+      now - paintedAt >= 1000 / 15 &&
+      video.currentTime !== previousTime
+    ) {
       const width = Math.min(640, video.videoWidth);
-      const height = Math.max(1, Math.round(width * video.videoHeight / video.videoWidth));
-      if (canvas.width !== width || canvas.height !== height) { canvas.width = width; canvas.height = height; }
+      const height = Math.max(
+        1,
+        Math.round((width * video.videoHeight) / video.videoWidth),
+      );
+      if (canvas.width !== width || canvas.height !== height) {
+        canvas.width = width;
+        canvas.height = height;
+      }
       try {
         ctx.drawImage(video, 0, 0, width, height);
         previousTime = video.currentTime;
         paintedAt = now;
-      } catch { /* A resolution/decode transition retries on the next frame. */ }
+      } catch {
+        /* A resolution/decode transition retries on the next frame. */
+      }
     }
     handle = requestFrame(paint);
   };
   handle = requestFrame(paint);
-  return { stop() { stopped = true; cancelFrame(handle); ctx?.clearRect(0, 0, canvas.width, canvas.height); } };
+  return {
+    stop() {
+      stopped = true;
+      cancelFrame(handle);
+      ctx?.clearRect(0, 0, canvas.width, canvas.height);
+    },
+  };
 }