Live camera aspect ratio fixes (#10266)

* dynamically manage aspect ratio

* full size

* always use camera aspect ratio for mobile

* no need for different handling for pano cams

* don't set aspect ratio on fullscreen

web/src/components/player/LivePlayer.tsx

@@ -93,7 +93,7 @@ export default function LivePlayer({
   if (liveMode == "webrtc") {
     player = (
       <WebRtcPlayer
-        className={`rounded-2xl h-full ${liveReady ? "" : "hidden"}`}
+        className={`rounded-2xl size-full ${liveReady ? "" : "hidden"}`}
         camera={cameraConfig.live.stream_name}
         playbackEnabled={cameraActive}
         audioEnabled={playAudio}
@@ -104,7 +104,7 @@ export default function LivePlayer({
     if ("MediaSource" in window || "ManagedMediaSource" in window) {
       player = (
         <MSEPlayer
-          className={`rounded-2xl h-full ${liveReady ? "" : "hidden"}`}
+          className={`rounded-2xl size-full ${liveReady ? "" : "hidden"}`}
           camera={cameraConfig.name}
           playbackEnabled={cameraActive}
           audioEnabled={playAudio}

web/src/hooks/resize-observer.ts

@@ -1,7 +1,11 @@
 import { MutableRefObject, useEffect, useMemo, useState } from "react";
 
-export function useResizeObserver(...refs: MutableRefObject<Element | null>[]) {
+type RefType = MutableRefObject<Element | null> | Window;
-  const [dimensions, setDimensions] = useState(
+
+export function useResizeObserver(...refs: RefType[]) {
+  const [dimensions, setDimensions] = useState<
+    { width: number; height: number; x: number; y: number }[]
+  >(
     new Array(refs.length).fill({
       width: 0,
       height: 0,
@@ -21,14 +25,18 @@ export function useResizeObserver(...refs: MutableRefObject<Element | null>[]) {
 
   useEffect(() => {
     refs.forEach((ref) => {
-      if (ref.current) {
+      if (ref instanceof Window) {
+        resizeObserver.observe(document.body);
+      } else if (ref.current) {
         resizeObserver.observe(ref.current);
       }
     });
 
     return () => {
       refs.forEach((ref) => {
-        if (ref.current) {
+        if (ref instanceof Window) {
+          resizeObserver.unobserve(document.body);
+        } else if (ref.current) {
           resizeObserver.unobserve(ref.current);
         }
       });

web/src/views/live/LiveCameraView.tsx

@@ -15,6 +15,7 @@ import {
   DropdownMenuTrigger,
 } from "@/components/ui/dropdown-menu";
 import { TooltipProvider } from "@/components/ui/tooltip";
+import { useResizeObserver } from "@/hooks/resize-observer";
 import useKeyboardListener from "@/hooks/use-keyboard-listener";
 import { CameraConfig } from "@/types/frigateConfig";
 import { CameraPtzInfo } from "@/types/ptz";
@@ -61,6 +62,8 @@ export default function LiveCameraView({ camera }: LiveCameraViewProps) {
   const navigate = useNavigate();
   const { isPortrait } = useMobileOrientation();
   const mainRef = useRef<HTMLDivElement | null>(null);
+  const [{ width: windowWidth, height: windowHeight }] =
+    useResizeObserver(window);
 
   // camera features
 
@@ -105,7 +108,7 @@ export default function LiveCameraView({ camera }: LiveCameraViewProps) {
         return "absolute left-2 right-2 top-[50%] -translate-y-[50%]";
       } else {
         if (aspect > 16 / 9) {
-          return "absolute left-12 top-[50%] -translate-y-[50%]";
+          return "absolute left-0 top-[50%] -translate-y-[50%]";
         } else {
           return "absolute top-2 bottom-2 left-[50%] -translate-x-[50%]";
         }
@@ -114,17 +117,33 @@ export default function LiveCameraView({ camera }: LiveCameraViewProps) {
 
     if (fullscreen) {
       if (aspect > 16 / 9) {
-        return "absolute inset-x-0 top-[50%] -translate-y-[50%]";
+        return "absolute inset-x-2 top-[50%] -translate-y-[50%]";
       } else {
-        return "absolute inset-y-0 left-[50%] -translate-x-[50%]";
+        return "absolute inset-y-2 left-[50%] -translate-x-[50%]";
       }
-    } else if (aspect > 2) {
-      return "absolute left-2 right-2 top-[50%] -translate-y-[50%]";
     } else {
       return "absolute top-2 bottom-2 left-[50%] -translate-x-[50%]";
     }
   }, [camera, fullscreen, isPortrait]);
 
+  const windowAspectRatio = useMemo(() => {
+    return windowWidth / windowHeight;
+  }, [windowWidth, windowHeight]);
+
+  const cameraAspectRatio = useMemo(() => {
+    return camera.detect.width / camera.detect.height;
+  }, [camera]);
+
+  const aspectRatio = useMemo<number>(() => {
+    if (isMobile || fullscreen) {
+      return cameraAspectRatio;
+    } else {
+      return windowAspectRatio < cameraAspectRatio
+        ? windowAspectRatio - 0.05
+        : cameraAspectRatio - 0.03;
+    }
+  }, [cameraAspectRatio, windowAspectRatio, fullscreen]);
+
   return (
     <div
       ref={mainRef}
@@ -216,14 +235,16 @@ export default function LiveCameraView({ camera }: LiveCameraViewProps) {
           </div>
         </TooltipProvider>
       </div>
-      <div className="relative size-full">
+      <div className="relative size-full p-2">
         <div
           className={growClassName}
-          style={{ aspectRatio: camera.detect.width / camera.detect.height }}
+          style={{
+            aspectRatio: aspectRatio,
+          }}
         >
           <LivePlayer
             key={camera.name}
-            className={`size-full ${fullscreen ? "*:rounded-none" : ""}`}
+            className={`${fullscreen ? "*:rounded-none" : ""}`}
             windowVisible
             showStillWithoutActivity={false}
             cameraConfig={camera}

web/src/views/live/LiveDashboardView.tsx

@@ -75,7 +75,7 @@ export default function LiveDashboardView({
   }, [visibilityListener]);
 
   return (
-    <div className="size-full overflow-y-scroll px-2">
+    <div className="size-full overflow-y-auto px-2">
       {isMobile && (
         <div className="relative h-9 flex items-center justify-between">
           <Logo className="absolute inset-y-0 inset-x-1/2 -translate-x-1/2 h-8" />