fixes

* Rate events over at least one second

EventsPerSecond.eps() divided the event count by the time since start(),
which can be a few milliseconds right after a restart. Frames buffered
during an ffmpeg restart then report as 100+ fps, and the same happens to
the detector fps. Use a window of at least one second.

* Keep sub-second windows consistent

Floor the divisor at the window length when the window is shorter than a
second, so a caller with a sub-second window still gets its true rate.

frigate/test/test_builtin.py

@@ -36,6 +36,31 @@ class TestEventsPerSecond(unittest.TestCase):
             clock[0] += 100.0
             self.assertEqual(eps.eps(), 0.0)
 
+    def test_burst_after_start_is_not_divided_by_a_tiny_window(self) -> None:
+        eps = EventsPerSecond(last_n_seconds=10)
+        clock = [1000.0]
+        with patch("frigate.util.builtin.time.monotonic", side_effect=lambda: clock[0]):
+            eps.start()
+            # eleven buffered frames arrive within 100 ms of starting
+            for _ in range(11):
+                clock[0] += 0.01
+                eps.update()
+            # 11 events over less than a second is at most 11 per second
+            self.assertLessEqual(eps.eps(), 11.0)
+
+    def test_subsecond_window_keeps_its_rate(self) -> None:
+        eps = EventsPerSecond(last_n_seconds=0.5)
+        clock = [1000.0]
+        with patch("frigate.util.builtin.time.monotonic", side_effect=lambda: clock[0]):
+            eps.start()
+            # twenty events per second for two seconds
+            for _ in range(40):
+                clock[0] += 0.05
+                eps.update()
+            # read between events, so none sits exactly on the window edge
+            clock[0] += 0.01
+            self.assertAlmostEqual(eps.eps(), 20.0)
+
 
 if __name__ == "__main__":
     unittest.main()

frigate/util/builtin.py

@@ -56,10 +56,13 @@ class EventsPerSecond:
             self._start = now
         # compute the (approximate) events in the last n seconds
         self.expire_timestamps(now)
-        seconds = min(now - self._start, self._last_n_seconds)
+        # rate over at least one second (or the whole window, if shorter),
-        # avoid divide by zero
+        # so a burst of events right after start() is not divided by a
-        if seconds == 0:
+        # tiny window
-            seconds = 1
+        seconds = max(
+            min(now - self._start, self._last_n_seconds),
+            min(1.0, self._last_n_seconds),
+        )
         return len(self._timestamps) / seconds
 
     # remove aged out timestamps

web/e2e/helpers/grid-layout.ts

@@ -0,0 +1,204 @@
+/**
+ * Helpers for the live dashboard's draggable grid layout: reading and seeding
+ * the persisted layout, and measuring rendered tiles.
+ *
+ * DraggableGridLayout persists through useUserPersistence, which namespaces
+ * keys by username, and every write is an async idb put. A test that seeds the
+ * bare key, or seeds before the app's own first write has landed, silently
+ * asserts against a key the app never reads. persistedLayoutKey() closes both
+ * holes, so prefer it over building the key by hand.
+ *
+ * Geometry has its own trap: the grid first lays out against window.innerWidth,
+ * then reflows narrower once useResizeObserver reports the real container.
+ * Tiles measured in separate round-trips can straddle that reflow and disagree
+ * on scale, so cameraBoxes() takes every measurement in one evaluate.
+ *
+ * Used by live-grid-aspect-modes.spec.ts and masonry-live-grid.spec.ts.
+ */
+
+import { expect, type Page } from "@playwright/test";
+
+export type LayoutItem = {
+  i: string;
+  x: number;
+  y: number;
+  w: number;
+  h: number;
+};
+
+export type PersistedLayout = {
+  version: number;
+  naturalAspect: boolean;
+  layout: LayoutItem[];
+};
+
+function layoutKeySuffix(group: string): string {
+  return `${group}-draggable-layout`;
+}
+
+/**
+ * The key the app has actually written an envelope to, or undefined while its
+ * first write is still in flight.
+ */
+function findWrittenKey(
+  page: Page,
+  group: string,
+): Promise<string | undefined> {
+  return page.evaluate(
+    (suffix) =>
+      new Promise<string | undefined>((resolve) => {
+        const open = indexedDB.open("keyval-store");
+        open.onsuccess = () => {
+          const store = open.result
+            .transaction("keyval", "readonly")
+            .objectStore("keyval");
+          // getAllKeys and getAll both return in key order, so the indexes align
+          const keys = store.getAllKeys();
+          const values = store.getAll();
+          keys.transaction.oncomplete = () => {
+            open.result.close();
+            const names = keys.result as string[];
+            const stored = values.result as { version?: number }[];
+            const match = names.findIndex(
+              (name, index) =>
+                (name === suffix || name.startsWith(`${suffix}:`)) &&
+                typeof stored[index]?.version === "number",
+            );
+            resolve(match === -1 ? undefined : names[match]);
+          };
+        };
+        open.onerror = () => resolve(undefined);
+      }),
+    layoutKeySuffix(group),
+  );
+}
+
+/**
+ * Wait for the grid to persist its own layout, then return the key it used.
+ * Waiting for that write is what makes a later seed meaningful: it proves the
+ * key is live, and it rules out the app overwriting the seed a moment later.
+ */
+export async function persistedLayoutKey(
+  page: Page,
+  group: string,
+): Promise<string> {
+  let key: string | undefined;
+
+  await expect
+    .poll(async () => (key = await findWrittenKey(page, group)), {
+      timeout: 10_000,
+      message: `grid never persisted a layout for group "${group}"`,
+    })
+    .not.toBeUndefined();
+
+  return key!;
+}
+
+/** Overwrite the stored layout, resolving only once the put has committed. */
+export function seedLayout(
+  page: Page,
+  key: string,
+  value: unknown,
+): Promise<void> {
+  return page.evaluate(
+    ([key, value]) =>
+      new Promise<void>((resolve, reject) => {
+        const open = indexedDB.open("keyval-store");
+        open.onupgradeneeded = () => open.result.createObjectStore("keyval");
+        open.onsuccess = () => {
+          const tx = open.result.transaction("keyval", "readwrite");
+          tx.objectStore("keyval").put(value, key as string);
+          tx.oncomplete = () => {
+            open.result.close();
+            resolve();
+          };
+          tx.onerror = () => reject(tx.error);
+        };
+        open.onerror = () => reject(open.error);
+      }),
+    [key, value] as const,
+  );
+}
+
+/** Read the stored layout back. Undefined until the app writes it. */
+export function readLayout(
+  page: Page,
+  key: string,
+): Promise<PersistedLayout | undefined> {
+  return page.evaluate(
+    (target) =>
+      new Promise((resolve) => {
+        const open = indexedDB.open("keyval-store");
+        open.onsuccess = () => {
+          const tx = open.result.transaction("keyval", "readonly");
+          const request = tx.objectStore("keyval").get(target);
+          tx.oncomplete = () => {
+            open.result.close();
+            resolve(request.result);
+          };
+        };
+        open.onerror = () => resolve(undefined);
+      }),
+    key,
+  ) as Promise<PersistedLayout | undefined>;
+}
+
+export type Box = { w: number; h: number; x: number; y: number };
+
+/** The card is the player root; the cell is the grid slot it sits in. */
+export type BoxTarget = "card" | "cell";
+
+/** One atomic snapshot, or null while any tile is missing or unlaid out. */
+function snapshotBoxes(
+  page: Page,
+  cameras: readonly string[],
+  target: BoxTarget,
+): Promise<Record<string, Box> | null> {
+  return page.evaluate(
+    ({ cams, target }) => {
+      const boxes: Record<string, Box> = {};
+
+      for (const cam of cams) {
+        const card = document.querySelector(`[data-camera='${cam}']`);
+        const el = target === "cell" ? card?.closest(".p-1") : card;
+
+        if (!el) {
+          return null;
+        }
+
+        const r = el.getBoundingClientRect();
+
+        // a re-rendering tile can briefly report no box at all
+        if (!r.width || !r.height) {
+          return null;
+        }
+
+        boxes[cam] = { w: r.width, h: r.height, x: r.x, y: r.y };
+      }
+
+      return boxes;
+    },
+    { cams: cameras as readonly string[], target },
+  );
+}
+
+/**
+ * Measure the given cameras' tiles together, once they have all rendered.
+ * Measuring in one evaluate is what keeps the numbers mutually comparable.
+ */
+export async function cameraBoxes<T extends string>(
+  page: Page,
+  cameras: readonly T[],
+  target: BoxTarget = "cell",
+): Promise<Record<T, Box>> {
+  let boxes: Record<string, Box> | null = null;
+
+  await expect
+    .poll(async () => (boxes = await snapshotBoxes(page, cameras, target)), {
+      timeout: 10_000,
+      message: `${target}s never rendered for ${cameras.join(", ")}`,
+    })
+    .not.toBeNull();
+
+  return boxes as unknown as Record<T, Box>;
+}

web/e2e/pages/live.page.ts

@@ -45,6 +45,11 @@ export class LivePage extends BasePage {
     );
   }
 
+  /** Edit-layout toggle on the draggable grid (desktop, custom groups). */
+  get editLayoutButton(): Locator {
+    return this.page.getByTestId("toggle-edit-layout");
+  }
+
   /** Open the right-click context menu on a camera card (desktop only). */
   async openContextMenuOn(cameraName: string): Promise<Locator> {
     await this.cameraCard(cameraName).first().click({ button: "right" });

web/e2e/specs/live-grid-aspect-modes.spec.ts

@@ -0,0 +1,185 @@
+/**
+ * Live grid aspect modes.
+ *
+ * Bucketed mode (the default) snaps every camera to a wide, landscape or tall
+ * tile, and converts layouts saved by pre-masonry versions instead of
+ * discarding them. Natural mode sizes each tile to its own camera.
+ */
+
+import { test, expect } from "../fixtures/frigate-test";
+import { LivePage } from "../pages/live.page";
+import {
+  cameraBoxes,
+  persistedLayoutKey,
+  readLayout,
+  seedLayout,
+  type LayoutItem,
+} from "../helpers/grid-layout";
+
+const GROUP = "outdoor";
+const GRID_COLS = 96;
+
+test.describe("Live grid aspect modes @critical", () => {
+  test.skip(
+    ({ frigateApp }) => frigateApp.isMobile,
+    "Draggable grid is desktop-only",
+  );
+
+  test("an ultra-wide camera gets a 32:9 tile in bucketed mode @mobile", async ({
+    frigateApp,
+  }) => {
+    await frigateApp.installDefaults({
+      config: {
+        cameras: { backyard: { detect: { width: 2560, height: 720 } } },
+      },
+    });
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("backyard").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    const { backyard: wide, front_door: normal } = await cameraBoxes(
+      frigateApp.page,
+      ["backyard", "front_door"] as const,
+    );
+
+    expect(wide.w / wide.h).toBeCloseTo(32 / 9, 1);
+    expect(wide.w / normal.w).toBeCloseTo(2, 1);
+    expect(wide.h).toBeCloseTo(normal.h, 0);
+  });
+
+  test("a letterboxed still image rounds its own corners", async ({
+    frigateApp,
+  }) => {
+    // A portrait camera pillarboxes inside its 8:9 bucket, so the card's
+    // overflow-hidden clip never reaches the picture's corners. The image has
+    // to carry the radius itself or it renders with square edges on the tile.
+    await frigateApp.installDefaults({
+      config: {
+        cameras: { backyard: { detect: { width: 720, height: 1280 } } },
+      },
+    });
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("backyard").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    const radii = await frigateApp.page.evaluate(() => {
+      const card = document.querySelector("[data-camera='backyard']");
+      const img = card?.querySelector("img");
+      return {
+        card: card ? getComputedStyle(card).borderTopLeftRadius : null,
+        img: img ? getComputedStyle(img).borderTopLeftRadius : null,
+      };
+    });
+
+    expect(radii.card).not.toBe("0px");
+    expect(radii.img).toBe(radii.card);
+  });
+
+  test("a pre-masonry layout is converted, keeping resized tiles", async ({
+    frigateApp,
+  }) => {
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    // 0.17/0.18 shape: bare array on a 12-column grid, 4x4 standard tiles.
+    // backyard was manually resized to 8x8 and sits beside front_door's column,
+    // front_door is a standard tile on the row below.
+    const key = await persistedLayoutKey(frigateApp.page, GROUP);
+    await seedLayout(frigateApp.page, key, [
+      { i: "backyard", x: 4, y: 0, w: 8, h: 8, moved: false, static: false },
+      { i: "front_door", x: 0, y: 8, w: 4, h: 4, moved: false, static: false },
+    ]);
+    await frigateApp.page.reload();
+    await frigateApp.page.waitForSelector("#pageRoot", { timeout: 10_000 });
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    // The conversion is written back on first load, replacing the legacy array
+    // with an envelope. Poll for it: that write is an async idb put.
+    await expect
+      .poll(async () => (await readLayout(frigateApp.page, key))?.version, {
+        timeout: 10_000,
+      })
+      .toBe(2);
+
+    const stored = (await readLayout(frigateApp.page, key))!;
+    expect(stored).toMatchObject({ version: 2, naturalAspect: false });
+
+    // x and w scale 8x (12 -> 96 columns), y and h scale 18x (4 -> 72 rows per
+    // standard tile), so the manual resize survives instead of snapping back.
+    expect(
+      stored.layout.find((i: LayoutItem) => i.i === "backyard"),
+    ).toMatchObject({
+      x: 32,
+      y: 0,
+      w: 64,
+      h: 144,
+    });
+    expect(
+      stored.layout.find((i: LayoutItem) => i.i === "front_door"),
+    ).toMatchObject({
+      x: 0,
+      y: 144,
+      w: 32,
+      h: 72,
+    });
+
+    // arrangement on screen: backyard indented, front_door below it
+    const { backyard, front_door: frontDoor } = await cameraBoxes(
+      frigateApp.page,
+      ["backyard", "front_door"] as const,
+    );
+    expect(backyard.x).toBeGreaterThan(frontDoor.x + frontDoor.w / 2);
+    expect(frontDoor.y).toBeGreaterThan(backyard.y + backyard.h / 2);
+  });
+
+  test("conversion is a pure scale, so odd sizes and positions survive", async ({
+    frigateApp,
+  }) => {
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    // The old grid exposed all four resize corners with no aspect constraint,
+    // so a stored tile can be any size. These two are adjacent and non-standard.
+    const key = await persistedLayoutKey(frigateApp.page, GROUP);
+    await seedLayout(frigateApp.page, key, [
+      { i: "front_door", x: 0, y: 3, w: 5, h: 5 },
+      { i: "backyard", x: 5, y: 3, w: 7, h: 5 },
+    ]);
+    await frigateApp.page.reload();
+    await frigateApp.page.waitForSelector("#pageRoot", { timeout: 10_000 });
+    await expect(live.cameraCard("backyard").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    await expect
+      .poll(async () => (await readLayout(frigateApp.page, key))?.version, {
+        timeout: 10_000,
+      })
+      .toBe(2);
+
+    const stored = (await readLayout(frigateApp.page, key))!;
+    const frontDoor = stored.layout.find(
+      (i: LayoutItem) => i.i === "front_door",
+    )!;
+    const backyard = stored.layout.find((i: LayoutItem) => i.i === "backyard")!;
+
+    expect(frontDoor).toMatchObject({ x: 0, y: 54, w: 40, h: 90 });
+    expect(backyard).toMatchObject({ x: 40, y: 54, w: 56, h: 90 });
+
+    // still adjacent, still inside the grid, still not overlapping
+    expect(frontDoor.x + frontDoor.w).toBe(backyard.x);
+    expect(backyard.x + backyard.w).toBe(GRID_COLS);
+  });
+});

web/e2e/specs/masonry-live-grid.spec.ts

@@ -0,0 +1,298 @@
+/**
+ * Masonry live grid -- custom-group draggable layout.
+ *
+ * Verifies natural-aspect tile sizing and that a saved layout the current
+ * version cannot read is regenerated cleanly. The grid renders only for a
+ * custom camera group (here: "outdoor") on desktop; mobile keeps the static
+ * grid, which the @mobile block below guards.
+ */
+
+import { test, expect } from "../fixtures/frigate-test";
+import { LivePage } from "../pages/live.page";
+import {
+  cameraBoxes,
+  persistedLayoutKey,
+  readLayout,
+  seedLayout,
+} from "../helpers/grid-layout";
+
+const GROUP = "outdoor"; // custom group: front_door + backyard
+
+test.describe("Masonry live grid @critical", () => {
+  test.skip(
+    ({ frigateApp }) => frigateApp.isMobile,
+    "Draggable masonry grid is desktop-only",
+  );
+
+  test("custom group renders its cameras in the draggable grid", async ({
+    frigateApp,
+  }) => {
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+    await expect(live.cameraCard("backyard").first()).toBeVisible();
+  });
+
+  test("tiles render at their camera's natural aspect ratio", async ({
+    frigateApp,
+  }) => {
+    // backyard is 9:16, which bucketed mode would snap to an 8:9 tile
+    await frigateApp.installDefaults({
+      config: {
+        cameras: { backyard: { detect: { width: 720, height: 1280 } } },
+      },
+    });
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    await seedLayout(frigateApp.page, "naturalAspectLayout:admin", true);
+    await frigateApp.page.reload();
+    await expect(live.cameraCard("backyard").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    const { front_door: landscape, backyard: portrait } = await cameraBoxes(
+      frigateApp.page,
+      ["front_door", "backyard"] as const,
+      "card",
+    );
+
+    expect(landscape.w / landscape.h).toBeCloseTo(16 / 9, 1);
+    expect(portrait.w / portrait.h).toBeCloseTo(9 / 16, 1);
+  });
+
+  test("dragging a tile does not shove other tiles far away", async ({
+    frigateApp,
+  }) => {
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    await live.editLayoutButton.click();
+
+    const cameras = ["front_door", "backyard"] as const;
+    const { front_door: fixedBefore, backyard: draggedBox } = await cameraBoxes(
+      frigateApp.page,
+      cameras,
+      "card",
+    );
+
+    // Drag backyard onto front_door's position (a deliberate collision). With
+    // free-placement + prevent-collision, front_door must NOT be shoved down.
+    const from = {
+      x: draggedBox.x + draggedBox.w / 2,
+      y: draggedBox.y + draggedBox.h / 2,
+    };
+    const to = {
+      x: fixedBefore.x + fixedBefore.w / 2,
+      y: fixedBefore.y + fixedBefore.h / 2,
+    };
+    await frigateApp.page.mouse.move(from.x, from.y);
+    await frigateApp.page.mouse.down();
+    await frigateApp.page.mouse.move(to.x, to.y, { steps: 15 });
+    await frigateApp.page.mouse.up();
+
+    const { front_door: fixedAfter } = await cameraBoxes(
+      frigateApp.page,
+      cameras,
+      "card",
+    );
+    // Allow a few px of snap; a collision-push would move it a whole tile down.
+    expect(Math.abs(fixedAfter.y - fixedBefore.y)).toBeLessThan(40);
+  });
+
+  test("resizing a top-row tile preserves its aspect ratio (no pillarboxing)", async ({
+    frigateApp,
+  }) => {
+    // A lone top tile has room to grow sideways, which is what exposed the bug:
+    // a top-edge handle let width grow while height stayed clamped at y=0.
+    await frigateApp.installDefaults({
+      config: { camera_groups: { outdoor: { cameras: ["front_door"] } } },
+    });
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+    await live.editLayoutButton.click();
+
+    const tile = frigateApp.page.locator(".react-grid-item", {
+      has: frigateApp.page.locator("[data-camera='front_door']"),
+    });
+    const only = ["front_door"] as const;
+    const { front_door: before } = await cameraBoxes(
+      frigateApp.page,
+      only,
+      "card",
+    );
+    const aspect = before.w / before.h;
+
+    // Regression: if a top-edge handle is exposed, dragging it up/out must NOT
+    // distort the aspect (the old bug grew width while height stayed clamped).
+    const ne = tile.locator(".react-resizable-handle-ne");
+    if (await ne.count()) {
+      await ne.dragTo(tile, {
+        force: true,
+        targetPosition: { x: 1000, y: -160 },
+      });
+      const { front_door: afterNe } = await cameraBoxes(
+        frigateApp.page,
+        only,
+        "card",
+      );
+      // It must actually resize (not a silent no-op) AND keep its aspect.
+      expect(afterNe.w).toBeGreaterThan(before.w);
+      expect(Math.abs(afterNe.w / afterNe.h - aspect)).toBeLessThan(0.2);
+    }
+
+    // Positive: growing from the bottom-right corner resizes and keeps aspect.
+    const se = tile.locator(".react-resizable-handle-se");
+    await se.dragTo(tile, { force: true, targetPosition: { x: 1000, y: 520 } });
+    const { front_door: grown } = await cameraBoxes(
+      frigateApp.page,
+      only,
+      "card",
+    );
+    expect(grown.w).toBeGreaterThan(before.w);
+    expect(Math.abs(grown.w / grown.h - aspect)).toBeLessThan(0.2);
+  });
+
+  test("the grid keeps its measured width after a back navigation", async ({
+    frigateApp,
+  }) => {
+    // The grid sizes itself from window.innerWidth until its container is
+    // measured. On a warm back navigation nothing re-renders after that
+    // container mounts, so an observer that never attaches leaves every tile
+    // sized against the full window: the layout widens by the sidebar's width
+    // and the rightmost column clips on a full row.
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    // total width the tiles span; tracks the width the grid laid out against
+    const span = () =>
+      frigateApp.page.evaluate(() => {
+        const tiles = [...document.querySelectorAll(".react-grid-item")];
+
+        if (!tiles.length) {
+          return null;
+        }
+
+        const rects = tiles.map((tile) => tile.getBoundingClientRect());
+        return +(
+          Math.max(...rects.map((r) => r.right)) -
+          Math.min(...rects.map((r) => r.left))
+        ).toFixed(1);
+      });
+
+    let fresh: number | null = null;
+    await expect
+      .poll(async () => (fresh = await span()), { timeout: 10_000 })
+      .not.toBeNull();
+
+    await live.cameraCard("front_door").first().click();
+    await expect(frigateApp.page).toHaveURL(/#front_door/);
+
+    await frigateApp.page.goBack();
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    // the layout must settle back to the measured width, not window.innerWidth
+    await expect
+      .poll(span, { timeout: 10_000 })
+      .toBeLessThanOrEqual(fresh! + 2);
+  });
+
+  test("a camera added to a saved layout fills an open column", async ({
+    frigateApp,
+  }) => {
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    // one tall tile in the first column; backyard is missing from the layout
+    const key = await persistedLayoutKey(frigateApp.page, GROUP);
+    await seedLayout(frigateApp.page, key, {
+      version: 2,
+      naturalAspect: false,
+      layout: [{ i: "front_door", x: 0, y: 0, w: 32, h: 400 }],
+    });
+    await frigateApp.page.reload();
+
+    await expect
+      .poll(async () => {
+        const stored = await readLayout(frigateApp.page, key);
+        return stored?.layout.find((item) => item.i === "backyard");
+      })
+      .toMatchObject({ x: 32, y: 0 });
+  });
+
+  test("saved layout from an unreadable version regenerates without error", async ({
+    frigateApp,
+  }) => {
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, true);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+
+    // A bare array is converted rather than discarded (covered in
+    // live-grid-aspect-modes), so use a version the current grid cannot read.
+    const key = await persistedLayoutKey(frigateApp.page, GROUP);
+    await seedLayout(frigateApp.page, key, {
+      version: 1,
+      naturalAspect: false,
+      layout: [{ i: "front_door", x: 0, y: 0, w: 4, h: 3 }],
+    });
+
+    await frigateApp.page.reload();
+    await frigateApp.page.waitForSelector("#pageRoot", { timeout: 10_000 });
+
+    // Grid regenerated; both cameras still render and the error collector
+    // (frigate-test fixture) catches any crash.
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+    await expect(live.cameraCard("backyard").first()).toBeVisible();
+
+    // The app must have replaced the value it could not read. Without this the
+    // test would still pass against a key the app never touches.
+    await expect
+      .poll(async () => (await readLayout(frigateApp.page, key))?.version, {
+        timeout: 10_000,
+      })
+      .toBeGreaterThan(1);
+  });
+});
+
+test.describe("Masonry live grid on mobile @critical @mobile", () => {
+  test("custom group keeps the static grid, with no draggable layout", async ({
+    frigateApp,
+  }) => {
+    test.skip(!frigateApp.isMobile, "Mobile-only");
+
+    await frigateApp.goto(`/?group=${GROUP}`);
+    const live = new LivePage(frigateApp.page, false);
+    await expect(live.cameraCard("front_door").first()).toBeVisible({
+      timeout: 10_000,
+    });
+    await expect(live.cameraCard("backyard").first()).toBeVisible();
+
+    // isMobileOnly routes around DraggableGridLayout entirely, so neither the
+    // grid items nor the edit-layout toggle may appear.
+    await expect(frigateApp.page.locator(".react-grid-item")).toHaveCount(0);
+    await expect(live.editLayoutButton).toHaveCount(0);
+  });
+});

web/e2e/specs/settings/ui-settings-transfer.spec.ts

@@ -13,7 +13,26 @@ import type { Page } from "@playwright/test";
 const OUTDOOR_LAYOUT_KEY = "outdoor-draggable-layout:admin";
 const STREAMING_KEY = "streaming-settings:admin";
 
-const OUTDOOR_LAYOUT = [
+// the shape DraggableGridLayout writes
+const OUTDOOR_LAYOUT = {
+  version: 2,
+  naturalAspect: false,
+  layout: [
+    { i: "front_door", x: 0, y: 0, w: 32, h: 72 },
+    { i: "backyard", x: 32, y: 0, w: 32, h: 72 },
+  ],
+};
+
+const NATURAL_OUTDOOR_LAYOUT = {
+  version: 2,
+  naturalAspect: true,
+  layout: [
+    { i: "front_door", x: 0, y: 0, w: 32, h: 72 },
+    { i: "backyard", x: 32, y: 0, w: 24, h: 96 },
+  ],
+};
+
+const LEGACY_OUTDOOR_LAYOUT = [
   { i: "front_door", x: 0, y: 0, w: 6, h: 4 },
   { i: "backyard", x: 6, y: 0, w: 6, h: 4 },
 ];
@@ -159,6 +178,160 @@ test.describe("UI settings import/export @medium", () => {
     expect(payload.sections.preferences.playbackRate).toBe(2);
   });
 
+  test("exports only layouts built for the current tile sizing mode", async ({
+    frigateApp,
+  }) => {
+    // a group not opened since the mode changed still holds a layout from
+    // the other mode, which would import into a mode that cannot show it
+    await frigateApp.goto("/settings?page=uiSettings");
+
+    await writeIdb(frigateApp.page, {
+      [OUTDOOR_LAYOUT_KEY]: OUTDOOR_LAYOUT,
+      "default-draggable-layout:admin": NATURAL_OUTDOOR_LAYOUT,
+      "naturalAspectLayout:admin": true,
+    });
+
+    const downloadPromise = frigateApp.page.waitForEvent("download");
+    await frigateApp.page
+      .getByRole("button", { name: "Export Settings" })
+      .click();
+    const download = await downloadPromise;
+    const payload = JSON.parse(readFileSync((await download.path())!, "utf-8"));
+
+    expect(payload.sections.layouts).toEqual({
+      default: NATURAL_OUTDOOR_LAYOUT,
+    });
+  });
+
+  test("toggling tile sizing mode clears stored layouts", async ({
+    frigateApp,
+  }) => {
+    test.skip(frigateApp.isMobile, "The setting is hidden on phones");
+    await frigateApp.goto("/settings?page=uiSettings");
+    await writeIdb(frigateApp.page, { [OUTDOOR_LAYOUT_KEY]: OUTDOOR_LAYOUT });
+
+    await frigateApp.page.locator("#natural-aspect-desktop").click();
+    await frigateApp.page
+      .getByRole("alertdialog")
+      .getByRole("button", { name: "Enable" })
+      .click();
+
+    await expect
+      .poll(() => readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY))
+      .toBeNull();
+    expect(await readIdb(frigateApp.page, "naturalAspectLayout:admin")).toBe(
+      true,
+    );
+  });
+
+  test("round-trips a layout left unconverted by an upgrade", async ({
+    frigateApp,
+  }) => {
+    test.skip(frigateApp.isMobile, "Layout import is desktop and tablet only");
+    // DraggableGridLayout rewrites a pre-0.19 layout only when that group's
+    // dashboard is opened, so exporting first carries the bare array into the
+    // file. Import must accept it back rather than rejecting the whole file.
+    await frigateApp.goto("/settings?page=uiSettings");
+
+    await writeIdb(frigateApp.page, {
+      [OUTDOOR_LAYOUT_KEY]: LEGACY_OUTDOOR_LAYOUT,
+      "playbackRate:admin": 2,
+    });
+
+    const downloadPromise = frigateApp.page.waitForEvent("download");
+    await frigateApp.page
+      .getByRole("button", { name: "Export Settings" })
+      .click();
+    const download = await downloadPromise;
+    const contents = readFileSync((await download.path())!, "utf-8");
+
+    expect(JSON.parse(contents).sections.layouts.outdoor).toEqual(
+      LEGACY_OUTDOOR_LAYOUT,
+    );
+
+    await clearIdb(frigateApp.page);
+    await chooseImportText(frigateApp.page, contents);
+    await confirmImport(frigateApp.page);
+
+    expect(await readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY)).toEqual(
+      LEGACY_OUTDOOR_LAYOUT,
+    );
+    // the rest of the file must survive alongside it
+    expect(await readIdb(frigateApp.page, "playbackRate:admin")).toBe(2);
+  });
+
+  test("legacy layouts import turns natural aspect off so they display", async ({
+    frigateApp,
+  }) => {
+    test.skip(frigateApp.isMobile, "Layout import is desktop and tablet only");
+    // Bare-array layouts only render in bucketed mode; with natural aspect on
+    // they would be discarded and regenerated on the next dashboard visit. The
+    // import applies the mode the layouts were built for, and the file's own
+    // naturalAspectLayout preference must not override that.
+    await frigateApp.goto("/settings?page=uiSettings");
+    await writeIdb(frigateApp.page, { "naturalAspectLayout:admin": true });
+
+    await chooseImportFile(
+      frigateApp.page,
+      importPayload({
+        sections: {
+          layouts: { outdoor: LEGACY_OUTDOOR_LAYOUT },
+          streaming: {},
+          preferences: { naturalAspectLayout: true },
+        },
+      }),
+    );
+
+    const note = frigateApp.page.getByText(/standard tile sizing/);
+    await expect(note).toBeVisible();
+
+    // the note is about the layouts section, so it follows its switch
+    await frigateApp.page.getByText("Camera group layouts (1 group)").click();
+    await expect(note).toBeHidden();
+    await frigateApp.page.getByText("Camera group layouts (1 group)").click();
+    await expect(note).toBeVisible();
+
+    await confirmImport(frigateApp.page);
+
+    expect(await readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY)).toEqual(
+      LEGACY_OUTDOOR_LAYOUT,
+    );
+    expect(await readIdb(frigateApp.page, "naturalAspectLayout:admin")).toBe(
+      false,
+    );
+  });
+
+  test("natural aspect layouts import turns the setting on", async ({
+    frigateApp,
+  }) => {
+    test.skip(frigateApp.isMobile, "Layout import is desktop and tablet only");
+    await frigateApp.goto("/settings?page=uiSettings");
+
+    await chooseImportFile(
+      frigateApp.page,
+      importPayload({
+        sections: {
+          layouts: { outdoor: NATURAL_OUTDOOR_LAYOUT },
+          streaming: {},
+          preferences: {},
+        },
+      }),
+    );
+
+    await expect(
+      frigateApp.page.getByText(/camera aspect ratio tile sizing/),
+    ).toBeVisible();
+
+    await confirmImport(frigateApp.page);
+
+    expect(await readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY)).toEqual(
+      NATURAL_OUTDOOR_LAYOUT,
+    );
+    expect(await readIdb(frigateApp.page, "naturalAspectLayout:admin")).toBe(
+      true,
+    );
+  });
+
   test("omits settings that were never stored", async ({ frigateApp }) => {
     await frigateApp.goto("/settings?page=uiSettings");
 
@@ -190,12 +363,15 @@ test.describe("UI settings import/export @medium", () => {
     await expect(
       frigateApp.page.getByText("UI preferences (2 settings)"),
     ).toBeVisible();
-    await expect(frigateApp.page.getByText(/patio/)).toBeVisible();
+    // patio is layout-only, so its warning follows the layouts section
+    await expect(frigateApp.page.getByText(/patio/)).toBeVisible({
+      visible: !frigateApp.isMobile,
+    });
 
     await confirmImport(frigateApp.page);
 
     expect(await readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY)).toEqual(
-      OUTDOOR_LAYOUT,
+      frigateApp.isMobile ? null : OUTDOOR_LAYOUT,
     );
     expect(await readIdb(frigateApp.page, STREAMING_KEY)).toEqual(
       STREAMING_SETTINGS,
@@ -206,6 +382,7 @@ test.describe("UI settings import/export @medium", () => {
   test("hides the unknown-group warning when layouts are switched off", async ({
     frigateApp,
   }) => {
+    test.skip(frigateApp.isMobile, "Layout import is desktop and tablet only");
     await frigateApp.goto("/settings?page=uiSettings");
 
     // patio is a layout-only group absent from this server, so the warning
@@ -235,7 +412,39 @@ test.describe("UI settings import/export @medium", () => {
 
     expect(await readIdb(frigateApp.page, STREAMING_KEY)).toEqual({});
     expect(await readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY)).toEqual(
-      OUTDOOR_LAYOUT,
+      frigateApp.isMobile ? null : OUTDOOR_LAYOUT,
+    );
+  });
+
+  test("phones refuse layouts and say why @mobile", async ({ frigateApp }) => {
+    test.skip(!frigateApp.isMobile, "Phone-only");
+
+    await frigateApp.goto("/settings?page=uiSettings");
+    await writeIdb(frigateApp.page, { "naturalAspectLayout:admin": false });
+
+    await chooseImportFile(frigateApp.page, importPayload());
+
+    await expect(
+      frigateApp.page.getByText(/aren't imported on phones/),
+    ).toBeVisible();
+
+    // the section is still listed, but cannot be switched on
+    await expect(
+      frigateApp.page.getByText("Camera group layouts (2 groups)"),
+    ).toBeVisible();
+    await expect(
+      frigateApp.page.locator('[id="Camera group layouts (2 groups)"]'),
+    ).toBeDisabled();
+
+    await confirmImport(frigateApp.page);
+
+    expect(await readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY)).toBeNull();
+    expect(await readIdb(frigateApp.page, STREAMING_KEY)).toEqual(
+      STREAMING_SETTINGS,
+    );
+    // a layouts import is what flips this, so it must stay put
+    expect(await readIdb(frigateApp.page, "naturalAspectLayout:admin")).toBe(
+      false,
     );
   });
 
@@ -325,7 +534,7 @@ test.describe("UI settings import/export @medium", () => {
     await confirmImport(frigateApp.page);
 
     expect(await readIdb(frigateApp.page, OUTDOOR_LAYOUT_KEY)).toEqual(
-      OUTDOOR_LAYOUT,
+      frigateApp.isMobile ? null : OUTDOOR_LAYOUT,
     );
     expect(await readIdb(frigateApp.page, STREAMING_KEY)).toEqual(
       STREAMING_SETTINGS,

web/public/locales/en/common.json

@@ -131,6 +131,7 @@
     "close": "Close",
     "expand": "Expand",
     "collapse": "Collapse",
+    "clear": "Clear",
     "copy": "Copy",
     "copiedToClipboard": "Copied to clipboard",
     "back": "Back",

web/public/locales/en/views/settings.json

@@ -167,6 +167,11 @@
         "label": "Always Show Camera Names",
         "desc": "Always show the camera names in a chip in the multi-camera live view dashboard."
       },
+      "naturalAspectLayout": {
+        "label": "Use Natural Aspect Ratios",
+        "desc": "On camera group live view dashboards, size each tile to its camera's own natural aspect ratio. When disabled, cameras are snapped to a standard wide, landscape, or tall tile shape.",
+        "descNote": "Toggling this setting on or off will clear the stored layout for all camera group live dashboards. Manual reconfiguration will be required."
+      },
       "liveFallbackTimeout": {
         "label": "Live Player Fallback Timeout",
         "desc": "When a camera's high quality live stream is unavailable, fall back to low bandwidth mode after this many seconds. Default: 3."
@@ -175,12 +180,14 @@
     "storedLayouts": {
       "title": "Stored Layouts",
       "desc": "The layout of cameras in a camera group can be dragged/resized. The positions are stored in your browser's local storage.",
-      "clearAll": "Clear All Layouts"
+      "clearAll": "Clear All Layouts",
+      "clearConfirm": "This will clear the stored layout for every camera group in this browser. This cannot be undone."
     },
     "cameraGroupStreaming": {
       "title": "Camera Group Streaming Settings",
       "desc": "Streaming settings for each camera group are stored in your browser's local storage.",
-      "clearAll": "Clear All Streaming Settings"
+      "clearAll": "Clear All Streaming Settings",
+      "clearConfirm": "This will clear the streaming settings for every camera group in this browser. This cannot be undone."
     },
     "backupRestore": {
       "title": "Backup & Restore",
@@ -195,6 +202,9 @@
         "desc": "Choose what to apply from this file. Frigate will reload when the import finishes.",
         "exportedFrom": "Exported {{date}} from Frigate config version {{version}}",
         "layouts_one": "Camera group layouts ({{count}} group)",
+        "layoutsPhone": "Camera group layouts aren't imported on phones, which always use the standard grid.",
+        "layoutsModeOn": "These layouts use camera aspect ratio tile sizing, so importing them will also turn on \"Use Natural Aspect Ratios\".",
+        "layoutsModeOff": "These layouts use standard tile sizing, so importing them will also turn off \"Use Natural Aspect Ratios\".",
         "layouts_other": "Camera group layouts ({{count}} groups)",
         "streaming_one": "Streaming settings ({{count}} camera)",
         "streaming_other": "Streaming settings ({{count}} cameras)",

web/src/components/camera/CameraImage.tsx

@@ -103,7 +103,7 @@ export default function CameraImage({
       )}
       {!imageLoaded && enabled ? (
         <div className="absolute bottom-0 left-0 right-0 top-0 flex items-center justify-center">
-          <ActivityIndicator />
+          <ActivityIndicator className={"w-full [.bg-black_&]:text-white"} />
         </div>
       ) : null}
     </div>

web/src/components/overlay/ImageShadowOverlay.tsx

@@ -12,13 +12,13 @@ export function ImageShadowOverlay({
     <>
       <div
         className={cn(
-          "pointer-events-none absolute inset-x-0 top-0 z-10 h-[30%] w-full rounded-lg bg-gradient-to-b from-black/20 to-transparent",
+          "pointer-events-none absolute inset-x-0 top-0 z-10 h-[30%] w-full bg-gradient-to-b from-black/20 to-transparent",
           upperClassName,
         )}
       />
       <div
         className={cn(
-          "pointer-events-none absolute inset-x-0 bottom-0 z-10 h-[10%] w-full rounded-lg bg-gradient-to-t from-black/20 to-transparent",
+          "pointer-events-none absolute inset-x-0 bottom-0 z-10 h-[10%] w-full bg-gradient-to-t from-black/20 to-transparent",
           lowerClassName,
         )}
       />

web/src/components/overlay/dialog/ImportUiSettingsDialog.tsx

@@ -10,10 +10,12 @@ import {
 } from "@/components/ui/dialog";
 import { Alert, AlertDescription } from "@/components/ui/alert";
 import { Button } from "@/components/ui/button";
-import { LuTriangleAlert } from "react-icons/lu";
+import { LuFileJson, LuInfo, LuTriangleAlert } from "react-icons/lu";
+import { isMobileOnly } from "react-device-detect";
 import FilterSwitch from "@/components/filter/FilterSwitch";
 import ActivityIndicator from "@/components/indicators/activity-indicator";
 import {
+  importedLayoutsNaturalAspect,
   ImportSummary,
   TransferSection,
   UiSettingsFile,
@@ -25,6 +27,7 @@ type ImportUiSettingsDialogProps = {
   fileName: string;
   file: UiSettingsFile;
   summary: ImportSummary;
+  currentNaturalAspect: boolean;
   onConfirm: (sections: Record<TransferSection, boolean>) => Promise<void>;
 };
 
@@ -34,6 +37,7 @@ export default function ImportUiSettingsDialog({
   fileName,
   file,
   summary,
+  currentNaturalAspect,
   onConfirm,
 }: ImportUiSettingsDialogProps) {
   const { t } = useTranslation(["views/settings", "common"]);
@@ -41,7 +45,9 @@ export default function ImportUiSettingsDialog({
 
   const available = useMemo(
     () => ({
-      layouts: summary.layoutGroupCount > 0,
+      // phones use the static grid, so a saved grid layout has nothing to
+      // apply to and would only flip the tile sizing mode behind the scenes
+      layouts: !isMobileOnly && summary.layoutGroupCount > 0,
       streaming: summary.streamingCameraCount > 0,
       preferences: summary.preferenceCount > 0,
     }),
@@ -90,6 +96,16 @@ export default function ImportUiSettingsDialog({
     [sections.streaming, summary.unknownCameras],
   );
 
+  // importing layouts also applies the tile-sizing mode they were built for
+  const layoutsModeChange = useMemo(() => {
+    if (!sections.layouts) {
+      return null;
+    }
+
+    const mode = importedLayoutsNaturalAspect(file);
+    return mode === null || mode === currentNaturalAspect ? null : mode;
+  }, [sections.layouts, file, currentNaturalAspect]);
+
   const handleConfirm = useCallback(async () => {
     setIsImporting(true);
     await onConfirm(sections);
@@ -113,73 +129,102 @@ export default function ImportUiSettingsDialog({
           </DialogDescription>
         </DialogHeader>
 
-        <div className="space-y-0.5">
+        <div className="space-y-4">
-          <p className="break-all text-base text-primary-variant">{fileName}</p>
+          <div className="flex items-start gap-3 rounded-lg bg-secondary p-3">
-          <p className="text-sm text-muted-foreground">
+            <LuFileJson className="mt-0.5 size-5 shrink-0 text-secondary-foreground" />
-            {t("general.backupRestore.importDialog.exportedFrom", {
+            <div className="min-w-0">
-              date: exportedDate,
+              <p className="break-all text-base font-medium text-primary-variant">
-              version: file.frigate_version,
+                {fileName}
-            })}
+              </p>
-          </p>
+              <p className="text-xs text-muted-foreground">
-        </div>
+                {t("general.backupRestore.importDialog.exportedFrom", {
+                  date: exportedDate,
+                  version: file.frigate_version,
+                })}
+              </p>
+            </div>
+          </div>
 
-        <div className="space-y-3">
+          <div className="space-y-2.5">
-          <FilterSwitch
+            <FilterSwitch
-            label={t("general.backupRestore.importDialog.layouts", {
+              label={t("general.backupRestore.importDialog.layouts", {
-              count: summary.layoutGroupCount,
+                count: summary.layoutGroupCount,
-            })}
+              })}
-            isChecked={sections.layouts}
+              isChecked={sections.layouts}
-            disabled={!available.layouts || isImporting}
+              disabled={!available.layouts || isImporting}
-            onCheckedChange={(checked) =>
+              onCheckedChange={(checked) =>
-              setSections((prev) => ({ ...prev, layouts: checked }))
+                setSections((prev) => ({ ...prev, layouts: checked }))
-            }
+              }
-          />
+            />
-          <FilterSwitch
+            <FilterSwitch
-            label={t("general.backupRestore.importDialog.streaming", {
+              label={t("general.backupRestore.importDialog.streaming", {
-              count: summary.streamingCameraCount,
+                count: summary.streamingCameraCount,
-            })}
+              })}
-            isChecked={sections.streaming}
+              isChecked={sections.streaming}
-            disabled={!available.streaming || isImporting}
+              disabled={!available.streaming || isImporting}
-            onCheckedChange={(checked) =>
+              onCheckedChange={(checked) =>
-              setSections((prev) => ({ ...prev, streaming: checked }))
+                setSections((prev) => ({ ...prev, streaming: checked }))
-            }
+              }
-          />
+            />
-          <FilterSwitch
+            <FilterSwitch
-            label={t("general.backupRestore.importDialog.preferences", {
+              label={t("general.backupRestore.importDialog.preferences", {
-              count: summary.preferenceCount,
+                count: summary.preferenceCount,
-            })}
+              })}
-            isChecked={sections.preferences}
+              isChecked={sections.preferences}
-            disabled={!available.preferences || isImporting}
+              disabled={!available.preferences || isImporting}
-            onCheckedChange={(checked) =>
+              onCheckedChange={(checked) =>
-              setSections((prev) => ({ ...prev, preferences: checked }))
+                setSections((prev) => ({ ...prev, preferences: checked }))
-            }
+              }
-          />
+            />
-        </div>
+          </div>
 
-        {(visibleUnknownGroups.length > 0 ||
+          {isMobileOnly && summary.layoutGroupCount > 0 && (
-          visibleUnknownCameras.length > 0) && (
+            <Alert variant="info">
-          <Alert variant="warning">
+              <LuInfo className="size-5" />
-            <LuTriangleAlert className="size-5" />
+              <AlertDescription>
-            <AlertDescription className="space-y-2">
+                {t("general.backupRestore.importDialog.layoutsPhone")}
-              {visibleUnknownGroups.length > 0 && (
+              </AlertDescription>
-                <p>
+            </Alert>
-                  {t("general.backupRestore.importDialog.unknownGroups", {
+          )}
-                    count: visibleUnknownGroups.length,
+
-                    groups: visibleUnknownGroups.join(", "),
+          {layoutsModeChange !== null && (
-                  })}
+            <Alert variant="info">
-                </p>
+              <LuInfo className="size-5" />
-              )}
+              <AlertDescription>
-              {visibleUnknownCameras.length > 0 && (
+                {t(
-                <p>
+                  layoutsModeChange
-                  {t("general.backupRestore.importDialog.unknownCameras", {
+                    ? "general.backupRestore.importDialog.layoutsModeOn"
-                    count: visibleUnknownCameras.length,
+                    : "general.backupRestore.importDialog.layoutsModeOff",
-                    cameras: visibleUnknownCameras.join(", "),
+                )}
-                  })}
+              </AlertDescription>
-                </p>
+            </Alert>
-              )}
+          )}
-            </AlertDescription>
+
-          </Alert>
+          {(visibleUnknownGroups.length > 0 ||
-        )}
+            visibleUnknownCameras.length > 0) && (
+            <Alert variant="warning">
+              <LuTriangleAlert className="size-5" />
+              <AlertDescription className="space-y-2">
+                {visibleUnknownGroups.length > 0 && (
+                  <p>
+                    {t("general.backupRestore.importDialog.unknownGroups", {
+                      count: visibleUnknownGroups.length,
+                      groups: visibleUnknownGroups.join(", "),
+                    })}
+                  </p>
+                )}
+                {visibleUnknownCameras.length > 0 && (
+                  <p>
+                    {t("general.backupRestore.importDialog.unknownCameras", {
+                      count: visibleUnknownCameras.length,
+                      cameras: visibleUnknownCameras.join(", "),
+                    })}
+                  </p>
+                )}
+              </AlertDescription>
+            </Alert>
+          )}
+        </div>
 
         <DialogFooter>
           <Button
@@ -198,7 +243,7 @@ export default function ImportUiSettingsDialog({
           >
             {isImporting ? (
               <div className="flex flex-row items-center gap-2">
-                <ActivityIndicator />
+                <ActivityIndicator className="size-4" />
                 <span>{t("general.backupRestore.importDialog.confirm")}</span>
               </div>
             ) : (

web/src/components/player/BirdseyeLivePlayer.tsx

@@ -29,22 +29,10 @@ export default function BirdseyeLivePlayer({
 }: LivePlayerProps) {
   let player;
   if (liveMode == "webrtc") {
-    player = (
+    player = <WebRtcPlayer className="size-full" camera="birdseye" pip={pip} />;
-      <WebRtcPlayer
-        className={`size-full rounded-lg md:rounded-2xl`}
-        camera="birdseye"
-        pip={pip}
-      />
-    );
   } else if (liveMode == "mse") {
     if ("MediaSource" in window || "ManagedMediaSource" in window) {
-      player = (
+      player = <MSEPlayer className="size-full" camera="birdseye" pip={pip} />;
-        <MSEPlayer
-          className={`size-full rounded-lg md:rounded-2xl`}
-          camera="birdseye"
-          pip={pip}
-        />
-      );
     } else {
       player = (
         <div className="w-5xl text-center text-sm">
@@ -55,7 +43,7 @@ export default function BirdseyeLivePlayer({
   } else if (liveMode == "jsmpeg") {
     player = (
       <JSMpegPlayer
-        className="flex size-full justify-center overflow-hidden rounded-lg md:rounded-2xl"
+        className="flex size-full justify-center overflow-hidden"
         camera="birdseye"
         width={birdseyeConfig.width}
         height={birdseyeConfig.height}
@@ -65,22 +53,31 @@ export default function BirdseyeLivePlayer({
       />
     );
   } else {
-    player = <ActivityIndicator />;
+    player = <ActivityIndicator className="w-full [.bg-black_&]:text-white" />;
   }
 
   return (
     <div
       ref={containerRef}
       className={cn(
-        "relative flex w-full cursor-pointer justify-center",
+        "relative flex w-full cursor-pointer justify-center overflow-hidden rounded-lg md:rounded-2xl",
         className,
       )}
       onClick={onClick}
     >
-      <ImageShadowOverlay
+      <div
-        upperClassName="md:rounded-2xl"
+        className="pointer-events-none absolute inset-0 z-10 flex items-center justify-center [container-type:size]"
-        lowerClassName="md:rounded-2xl"
+        style={
-      />
+          {
+            "--pic-ar":
+              (birdseyeConfig.width || 1) / (birdseyeConfig.height || 1),
+          } as React.CSSProperties
+        }
+      >
+        <div className="relative aspect-[var(--pic-ar)] h-auto w-[min(100%,calc(100cqh*var(--pic-ar)))]">
+          <ImageShadowOverlay />
+        </div>
+      </div>
       <div className="size-full" ref={playerRef}>
         {player}
       </div>

web/src/components/player/LivePlayer.tsx

@@ -54,6 +54,7 @@ type LivePlayerProps = {
   onError?: (error: LivePlayerError) => void;
   onMicrophoneError?: (error: TwoWayTalkError) => void;
   onResetLiveMode?: () => void;
+  onLiveAspectChange?: (aspectRatio: number | undefined) => void;
 };
 
 export default function LivePlayer({
@@ -80,6 +81,7 @@ export default function LivePlayer({
   onError,
   onMicrophoneError,
   onResetLiveMode,
+  onLiveAspectChange,
 }: LivePlayerProps) {
   const { t } = useTranslation(["components/player"]);
 
@@ -127,6 +129,37 @@ export default function LivePlayer({
   // camera live state
 
   const [liveReady, setLiveReady] = useState(false);
+  const [liveAspect, setLiveAspect] = useState<number | undefined>();
+
+  const handleFullResolution = useCallback(
+    (value: React.SetStateAction<VideoResolutionType>) => {
+      setFullResolution?.(value);
+
+      if (typeof value === "function") {
+        return;
+      }
+
+      setLiveAspect(
+        value.width && value.height ? value.width / value.height : undefined,
+      );
+    },
+    [setFullResolution],
+  );
+
+  useEffect(() => {
+    onLiveAspectChange?.(liveReady ? liveAspect : undefined);
+  }, [liveReady, liveAspect, onLiveAspectChange]);
+
+  // The card can be a different shape than the picture (a bucketed tile, or a
+  // still whose detect aspect differs from the stream), so overlays that are
+  // meant to sit on the image have to be fitted to it rather than to the card.
+  const pictureAspect = useMemo(() => {
+    if (liveReady && liveAspect) {
+      return liveAspect;
+    }
+    const { width, height } = cameraConfig.detect;
+    return width && height ? width / height : 16 / 9;
+  }, [liveReady, liveAspect, cameraConfig.detect]);
 
   const liveReadyRef = useRef(liveReady);
   const cameraActiveRef = useRef(cameraActive);
@@ -262,11 +295,12 @@ export default function LivePlayer({
     player = (
       <WebRtcPlayer
         key={"webrtc_" + key}
-        className={`size-full rounded-lg md:rounded-2xl ${liveReady ? "" : "hidden"}`}
+        className={`size-full ${liveReady ? "" : "hidden"}`}
         camera={streamName}
         playbackEnabled={cameraActive || liveReady}
         getStats={showStats}
         setStats={setStats}
+        setFullResolution={handleFullResolution}
         audioEnabled={playAudio}
         volume={volume}
         microphoneEnabled={micEnabled}
@@ -282,7 +316,7 @@ export default function LivePlayer({
       player = (
         <MSEPlayer
           key={"mse_" + key}
-          className={`size-full rounded-lg md:rounded-2xl ${liveReady ? "" : "hidden"}`}
+          className={`size-full ${liveReady ? "" : "hidden"}`}
           camera={streamName}
           playbackEnabled={cameraActive || liveReady}
           audioEnabled={playAudio}
@@ -292,7 +326,7 @@ export default function LivePlayer({
           setStats={setStats}
           onPlaying={playerIsPlaying}
           pip={pip}
-          setFullResolution={setFullResolution}
+          setFullResolution={handleFullResolution}
           onError={onError}
         />
       );
@@ -308,7 +342,7 @@ export default function LivePlayer({
       player = (
         <JSMpegPlayer
           key={"jsmpeg_" + key}
-          className="flex justify-center overflow-hidden rounded-lg md:rounded-2xl"
+          className="flex justify-center overflow-hidden"
           camera={cameraConfig.name}
           width={cameraConfig.detect.width}
           height={cameraConfig.detect.height}
@@ -325,7 +359,9 @@ export default function LivePlayer({
       player = null;
     }
   } else {
-    player = <ActivityIndicator />;
+    player = (
+      <ActivityIndicator className={"w-full [.bg-black_&]:text-white"} />
+    );
   }
 
   return (
@@ -340,10 +376,12 @@ export default function LivePlayer({
       }}
       data-camera={cameraConfig.name}
       className={cn(
-        "relative flex w-full cursor-pointer justify-center outline",
+        // the card owns the corner: overflow-hidden clips the stream, the still
+        // image, and every overlay to this one radius so they stay concentric
+        "relative flex w-full cursor-pointer justify-center overflow-hidden rounded-lg outline md:rounded-2xl",
         activeTracking &&
           ((showStillWithoutActivity && !liveReady) || liveReady)
-          ? "outline-3 rounded-lg shadow-severity_alert outline-severity_alert md:rounded-2xl"
+          ? "shadow-severity_alert outline-[3px] outline-severity_alert"
           : "outline-0 outline-background",
         "transition-all duration-500",
         className,
@@ -357,10 +395,14 @@ export default function LivePlayer({
     >
       {cameraEnabled &&
         ((showStillWithoutActivity && !liveReady) || liveReady) && (
-          <ImageShadowOverlay
+          <div
-            upperClassName="md:rounded-2xl"
+            className="pointer-events-none absolute inset-0 z-10 flex items-center justify-center [container-type:size]"
-            lowerClassName="md:rounded-2xl"
+            style={{ "--pic-ar": pictureAspect } as React.CSSProperties}
-          />
+          >
+            <div className="relative aspect-[var(--pic-ar)] h-auto w-[min(100%,calc(100cqh*var(--pic-ar)))]">
+              <ImageShadowOverlay />
+            </div>
+          </div>
         )}
       {player}
       {cameraEnabled &&
@@ -368,7 +410,7 @@ export default function LivePlayer({
         (!showStillWithoutActivity || isReEnabling) &&
         !liveReady && (
           <div className="absolute inset-0 flex items-center justify-center">
-            <ActivityIndicator />
+            <ActivityIndicator className={"w-full [.bg-black_&]:text-white"} />
           </div>
         )}
 
@@ -447,7 +489,7 @@ export default function LivePlayer({
 
       {offline && inDashboard && (
         <>
-          <div className="absolute inset-0 rounded-lg bg-black/50 md:rounded-2xl" />
+          <div className="absolute inset-0 bg-black/50" />
           <div className="absolute inset-0 left-1/2 top-1/2 flex -translate-x-1/2 -translate-y-1/2 items-center justify-center">
             <div className="flex flex-col items-center justify-center gap-2 rounded-lg bg-background/50 p-3 text-center">
               <div>{t("streamOffline.title")}</div>
@@ -491,7 +533,7 @@ export default function LivePlayer({
       )}
 
       {!cameraEnabled && (
-        <div className="relative flex h-full w-full items-center justify-center rounded-2xl border border-secondary-foreground bg-background_alt">
+        <div className="relative flex h-full w-full items-center justify-center border border-secondary-foreground bg-background_alt">
           <div className="flex h-32 flex-col items-center justify-center rounded-lg p-4 md:h-48 md:w-48">
             <LuVideoOff className="mb-2 size-8 md:size-10" />
             <p className="max-w-32 text-center text-sm md:max-w-40 md:text-base">

web/src/components/player/VideoControls.tsx

@@ -1,6 +1,6 @@
 import { useCallback, useMemo, useRef, useState } from "react";
 import { LuFolderX } from "react-icons/lu";
-import { isMobileOnly, isSafari } from "react-device-detect";
+import { isMobileOnly } from "react-device-detect";
 import { LuPause, LuPlay } from "react-icons/lu";
 import {
   DropdownMenu,
@@ -54,7 +54,7 @@ const CONTROLS_DEFAULT: VideoControls = {
   snapshot: false,
   fullscreen: false,
 };
-const PLAYBACK_RATE_DEFAULT = isSafari ? [0.5, 1, 2] : [0.5, 1, 2, 4, 8, 16];
+const PLAYBACK_RATE_DEFAULT = [0.5, 1, 2, 4, 8, 16];
 const MIN_ITEMS_WRAP = 6;
 
 type VideoControlsProps = {

web/src/components/player/WebRTCPlayer.tsx

@@ -3,6 +3,7 @@ import {
   LivePlayerError,
   PlayerStatsType,
   TwoWayTalkError,
+  VideoResolutionType,
 } from "@/types/live";
 import { FrigateConfig } from "@/types/frigateConfig";
 import { webRTCIceServers } from "@/utils/webrtcUtil";
@@ -20,6 +21,7 @@ type WebRtcPlayerProps = {
   pip?: boolean;
   getStats?: boolean;
   setStats?: (stats: PlayerStatsType) => void;
+  setFullResolution?: React.Dispatch<React.SetStateAction<VideoResolutionType>>;
   onPlaying?: () => void;
   onError?: (error: LivePlayerError) => void;
   onMicrophoneError?: (error: TwoWayTalkError) => void;
@@ -36,6 +38,7 @@ export default function WebRtcPlayer({
   pip = false,
   getStats = false,
   setStats,
+  setFullResolution,
   onPlaying,
   onError,
   onMicrophoneError,
@@ -342,6 +345,12 @@ export default function WebRtcPlayer({
     if (videoLoadTimeoutRef.current) {
       clearTimeout(videoLoadTimeoutRef.current);
     }
+    if (videoRef.current) {
+      setFullResolution?.({
+        width: videoRef.current.videoWidth,
+        height: videoRef.current.videoHeight,
+      });
+    }
     onPlaying?.();
   };
 

web/src/index.css

@@ -175,6 +175,21 @@ html {
   background-image: none !important;
 }
 
+/* Live masonry grid: only the bottom-right corner resizes, drawn as a corner
+   bracket on the real se handle (drop-shadow keeps it legible over footage). */
+.grid-layout .react-resizable-handle-se::after {
+  content: "";
+  position: absolute;
+  right: 5px;
+  bottom: 5px;
+  width: 12px;
+  height: 12px;
+  border-right: 2.5px solid rgba(233, 238, 246, 0.92);
+  border-bottom: 2.5px solid rgba(233, 238, 246, 0.92);
+  border-bottom-right-radius: 3px;
+  filter: drop-shadow(0 0 1.5px rgba(0, 0, 0, 0.9));
+}
+
 .react-grid-item.react-grid-placeholder {
   border: 3px solid #a00000 !important;
   opacity: 0.5 !important;

web/src/utils/uiSettingsTransfer.ts

@@ -54,6 +54,12 @@ export const TRANSFER_KEYS: TransferKey[] = [
     namespaced: true,
     schema: z.boolean(),
   },
+  {
+    key: "naturalAspectLayout",
+    section: "preferences",
+    namespaced: true,
+    schema: z.boolean(),
+  },
   {
     key: "alertVideos",
     section: "preferences",
@@ -182,13 +188,22 @@ const layoutItemSchema = z
   })
   .passthrough();
 
+// a group whose dashboard has not been opened since upgrading still holds
+// the pre-0.19 bare array, so both shapes reach the file
+const storedLayoutSchema = z.union([
+  z.array(layoutItemSchema),
+  z
+    .object({ version: z.number(), layout: z.array(layoutItemSchema) })
+    .passthrough(),
+]);
+
 export const uiSettingsFileSchema = z.object({
   type: z.literal(UI_SETTINGS_FILE_TYPE),
   version: z.number().int().positive(),
   exported_at: z.string(),
   frigate_version: z.string(),
   sections: z.object({
-    layouts: z.record(z.string(), z.array(layoutItemSchema)),
+    layouts: z.record(z.string(), storedLayoutSchema),
     streaming: allGroupsStreamingSettingsSchema,
     preferences: z.record(z.string(), z.unknown()),
   }),
@@ -204,6 +219,8 @@ export async function buildExportPayload(
   const layouts: UiSettingsFile["sections"]["layouts"] = {};
   let streaming: UiSettingsFile["sections"]["streaming"] = {};
   const preferences: UiSettingsFile["sections"]["preferences"] = {};
+  const naturalAspect =
+    (await readTransferable("naturalAspectLayout", true, username)) === true;
 
   await Promise.all(
     groupNames.map(async (group) => {
@@ -213,7 +230,9 @@ export async function buildExportPayload(
         username,
       );
 
-      if (value !== undefined) {
+      // a group not opened since the mode changed still holds a layout from
+      // the other mode, which the grid discards, so leave it out of the file
+      if (value !== undefined && layoutIsNatural(value) === naturalAspect) {
         layouts[group] = value;
       }
     }),
@@ -384,6 +403,30 @@ export function summarizeImport(
   };
 }
 
+// Bare arrays are pre-masonry bucketed layouts
+function layoutIsNatural(layout: unknown): boolean {
+  return (
+    typeof layout === "object" &&
+    layout !== null &&
+    !Array.isArray(layout) &&
+    (layout as { naturalAspect?: unknown }).naturalAspect === true
+  );
+}
+
+// A layout only renders under the mode that built it, so importing layouts
+// applies this mode too. Exports hold a single mode.
+export function importedLayoutsNaturalAspect(
+  file: UiSettingsFile,
+): boolean | null {
+  const layouts = Object.values(file.sections.layouts);
+
+  if (!layouts.length) {
+    return null;
+  }
+
+  return layouts.some(layoutIsNatural);
+}
+
 export function hasImportableContent(summary: ImportSummary): boolean {
   return (
     summary.layoutGroupCount > 0 ||
@@ -398,6 +441,9 @@ export async function applyImportPayload(
   username: string | undefined,
 ): Promise<void> {
   const writes: Promise<void>[] = [];
+  const layoutsMode = sections.layouts
+    ? importedLayoutsNaturalAspect(file)
+    : null;
 
   if (sections.layouts) {
     Object.entries(file.sections.layouts).forEach(([group, layout]) => {
@@ -408,6 +454,15 @@ export async function applyImportPayload(
         ),
       );
     });
+
+    if (layoutsMode !== null) {
+      writes.push(
+        setData(
+          getUserNamespacedKey("naturalAspectLayout", username),
+          layoutsMode,
+        ),
+      );
+    }
   }
 
   const streamingEntry = TRANSFER_KEYS.find(
@@ -447,6 +502,12 @@ export async function applyImportPayload(
   if (sections.preferences) {
     validPreferenceEntries(file.sections.preferences).forEach(
       ({ entry, value }) => {
+        // the layouts must win this key or they import into a mode that
+        // cannot display them
+        if (entry.key === "naturalAspectLayout" && layoutsMode !== null) {
+          return;
+        }
+
         writes.push(setData(storageKey(entry, username), value));
       },
     );

web/src/views/live/DraggableGridLayout.tsx

@@ -8,16 +8,17 @@ import {
 import React, {
   useCallback,
   useEffect,
-  useLayoutEffect,
   useMemo,
   useRef,
   useState,
 } from "react";
+import { useResizeObserver } from "@/hooks/resize-observer";
 import {
   Layout,
   LayoutItem,
   ResponsiveGridLayout as Responsive,
 } from "react-grid-layout";
+import { aspectRatio, getCompactor } from "react-grid-layout/core";
 import "react-grid-layout/css/styles.css";
 import "react-resizable/css/styles.css";
 import {
@@ -28,12 +29,11 @@ import {
   StatsState,
   VolumeState,
 } from "@/types/live";
-import { ASPECT_VERTICAL_LAYOUT, ASPECT_WIDE_LAYOUT } from "@/types/record";
+import { ASPECT_WIDE_LAYOUT } from "@/types/record";
 import { Skeleton } from "@/components/ui/skeleton";
-import { useResizeObserver } from "@/hooks/resize-observer";
 import { isEqual } from "lodash";
 import useSWR from "swr";
-import { isDesktop, isMobile } from "react-device-detect";
+import { isDesktop, isMobile, isMobileOnly } from "react-device-detect";
 import BirdseyeLivePlayer from "@/components/player/BirdseyeLivePlayer";
 import LivePlayer from "@/components/player/LivePlayer";
 import { IoClose } from "react-icons/io5";
@@ -52,6 +52,43 @@ import LiveContextMenu from "@/components/menu/LiveContextMenu";
 import { useStreamingSettings } from "@/context/streaming-settings-provider";
 import { useTranslation } from "react-i18next";
 
+// rowHeight is 1/VERTICAL_RESOLUTION of a column, so h = round(w *
+// VERTICAL_RESOLUTION / aspect) lands a tile on its camera's aspect. GRID_COLS
+// also sets resize granularity: the aspect constraint derives height from
+// width, making one column the smallest step in both axes.
+const GRID_COLS = 96;
+const TILE_BASE_W = 32;
+const TILE_WIDE_W = 64;
+const VERTICAL_RESOLUTION = 4;
+const DEFAULT_ASPECT = 16 / 9;
+// Bucketed tile shapes, matching the aspect-wide / aspect-tall Tailwind utilities.
+const TILE_ASPECT_WIDE = 32 / 9;
+const TILE_ASPECT_TALL = 8 / 9;
+
+// Cells quantize to whole rows/columns, so the card takes the camera's exact
+// ratio and fits itself inside its cell. --ar and container-type live on the
+// cell; min() picks whichever axis binds first.
+const CARD_FIT =
+  "h-auto w-[min(100%,calc(100cqh*var(--ar)))] aspect-[var(--ar)]";
+
+// Stored coordinates are grid units, so bump this whenever GRID_COLS or
+// VERTICAL_RESOLUTION changes in a released version.
+const LAYOUT_VERSION = 2;
+type PersistedLayout = {
+  version: number;
+  naturalAspect: boolean;
+  layout: Layout;
+};
+
+// Without preventCollision, RGL shoves collided tiles down the page and never
+// compacts them back.
+const FREE_PLACEMENT_COMPACTOR = getCompactor(null, false, true);
+
+// 0.17/0.18 stored a bare array on a 12-column grid whose standard tile was
+// 4x4. Bucketed mode reproduces that geometry, so those layouts convert exactly.
+const LEGACY_GRID_COLS = 12;
+const LEGACY_TILE_ROWS = 4;
+
 type DraggableGridLayoutProps = {
   cameras: CameraConfig[];
   cameraGroup: string;
@@ -98,6 +135,66 @@ export default function DraggableGridLayout({
   const { data: config } = useSWR<FrigateConfig>("config");
   const birdseyeConfig = useMemo(() => config?.birdseye, [config]);
 
+  const aspectRatios = useMemo(() => {
+    const map: { [key: string]: number } = {};
+    if (birdseyeConfig) {
+      map["birdseye"] =
+        (birdseyeConfig.width || 1) / (birdseyeConfig.height || 1);
+    }
+    cameras.forEach((camera) => {
+      map[camera.name] =
+        camera.detect.width / camera.detect.height || DEFAULT_ASPECT;
+    });
+    return map;
+  }, [cameras, birdseyeConfig]);
+
+  const [naturalAspectSetting, , isNaturalAspectLoaded] = useUserPersistence(
+    "naturalAspectLayout",
+    false,
+  );
+  // phones never reach this grid, and the setting is hidden there, so an
+  // imported or stale value must not take effect
+  const naturalAspectLayout = !isMobileOnly && (naturalAspectSetting ?? false);
+
+  // Bucketed mode snaps every camera to one of three tile shapes, matching the
+  // pre-masonry layout; the picture letterboxes inside its bucket.
+  const layoutAspects = useMemo(() => {
+    if (naturalAspectLayout) {
+      return aspectRatios;
+    }
+    const map: { [key: string]: number } = {};
+    Object.entries(aspectRatios).forEach(([name, ratio]) => {
+      map[name] =
+        ratio > ASPECT_WIDE_LAYOUT
+          ? TILE_ASPECT_WIDE
+          : ratio < 1
+            ? TILE_ASPECT_TALL
+            : DEFAULT_ASPECT;
+    });
+    return map;
+  }, [aspectRatios, naturalAspectLayout]);
+
+  // A live stream can be shaped differently than detect, so the card follows
+  // whatever is on screen and falls back to detect. Cells stay detect-sized, so
+  // only the card resizes.
+  const [liveAspects, setLiveAspects] = useState<{
+    [key: string]: number | undefined;
+  }>({});
+
+  const liveAspectHandlers = useMemo(() => {
+    const map: { [key: string]: (aspectRatio: number | undefined) => void } =
+      {};
+    cameras.forEach((camera) => {
+      map[camera.name] = (aspectRatio) =>
+        setLiveAspects((prev) =>
+          prev[camera.name] === aspectRatio
+            ? prev
+            : { ...prev, [camera.name]: aspectRatio },
+        );
+    });
+    return map;
+  }, [cameras]);
+
   // preferred live modes per camera
 
   const [globalAutoLive] = useUserPersistence("autoLiveView", true);
@@ -115,7 +212,31 @@ export default function DraggableGridLayout({
   // grid layout
 
   const [gridLayout, setGridLayout, isGridLayoutLoaded] =
-    useUserPersistence<Layout>(`${cameraGroup}-draggable-layout`);
+    useUserPersistence<PersistedLayout>(`${cameraGroup}-draggable-layout`);
+
+  const readPersistedLayout = useCallback(
+    (stored: PersistedLayout | undefined): Layout | undefined => {
+      if (
+        !stored ||
+        stored.version !== LAYOUT_VERSION ||
+        !Array.isArray(stored.layout)
+      ) {
+        return undefined;
+      }
+      return stored.layout;
+    },
+    [],
+  );
+
+  // Strips per-item `constraints`, which are functions.
+  const toPersisted = useCallback(
+    (layout: Layout): PersistedLayout => ({
+      version: LAYOUT_VERSION,
+      naturalAspect: naturalAspectLayout,
+      layout: layout.map(({ i, x, y, w, h }) => ({ i, x, y, w, h })),
+    }),
+    [naturalAspectLayout],
+  );
 
   const [group] = useUserPersistedOverlayState(
     "cameraGroup",
@@ -140,11 +261,11 @@ export default function DraggableGridLayout({
   useEffect(() => {
     setIsEditMode(false);
     setEditGroup(false);
-    // Reset camera tracking state when group changes to prevent the camera-change
+    // Keeps the camera-change effect from overwriting the layout we load next.
-    // effect from incorrectly overwriting the loaded layout
     setCurrentCameras(undefined);
     setCurrentIncludeBirdseye(undefined);
     setCurrentGridLayout(undefined);
+    setCurrentNaturalAspect(undefined);
   }, [cameraGroup, setIsEditMode]);
 
   // camera state
@@ -155,21 +276,84 @@ export default function DraggableGridLayout({
   const [currentGridLayout, setCurrentGridLayout] = useState<
     Layout | undefined
   >();
+  const [currentNaturalAspect, setCurrentNaturalAspect] = useState<boolean>();
 
   const handleLayoutChange = useCallback(
     (currentLayout: Layout) => {
-      if (!isGridLayoutLoaded || !isEqual(gridLayout, currentGridLayout)) {
+      if (
+        !isGridLayoutLoaded ||
+        !isEqual(readPersistedLayout(gridLayout), currentGridLayout)
+      ) {
         return;
       }
-      // save layout to idb
+      setGridLayout(toPersisted(currentLayout));
-      setGridLayout(currentLayout);
       setShowCircles(true);
     },
-    [setGridLayout, isGridLayoutLoaded, gridLayout, currentGridLayout],
+    [
+      setGridLayout,
+      isGridLayoutLoaded,
+      gridLayout,
+      currentGridLayout,
+      readPersistedLayout,
+      toPersisted,
+    ],
+  );
+
+  const dimsFor = useCallback(
+    (name: string) => {
+      const ratio = layoutAspects[name] ?? DEFAULT_ASPECT;
+      const w = ratio >= ASPECT_WIDE_LAYOUT ? TILE_WIDE_W : TILE_BASE_W;
+      const h = Math.max(1, Math.round((w * VERTICAL_RESOLUTION) / ratio));
+      return { w, h };
+    },
+    [layoutAspects],
+  );
+
+  // Rescale a pre-masonry layout onto the current grid. Both axes scale by a
+  // constant, so tiles the user resized keep their size and their arrangement
+  // stays intact. Only meaningful in bucketed mode, where a tile still has the
+  // shape those coordinates assumed.
+  const convertLegacyLayout = useCallback(
+    (stored: unknown): Layout | undefined => {
+      if (naturalAspectLayout || !Array.isArray(stored) || !stored.length) {
+        return undefined;
+      }
+
+      const xScale = GRID_COLS / LEGACY_GRID_COLS;
+      const yScale =
+        Math.round((TILE_BASE_W * VERTICAL_RESOLUTION) / DEFAULT_ASPECT) /
+        LEGACY_TILE_ROWS;
+      const converted: LayoutItem[] = [];
+
+      for (const item of stored) {
+        if (
+          !item ||
+          typeof item.i !== "string" ||
+          typeof item.x !== "number" ||
+          typeof item.y !== "number" ||
+          typeof item.w !== "number" ||
+          typeof item.h !== "number"
+        ) {
+          return undefined;
+        }
+
+        const w = Math.min(Math.max(1, Math.round(item.w * xScale)), GRID_COLS);
+        converted.push({
+          i: item.i,
+          x: Math.min(Math.max(0, Math.round(item.x * xScale)), GRID_COLS - w),
+          y: Math.max(0, Math.round(item.y * yScale)),
+          w,
+          h: Math.max(1, Math.round(item.h * yScale)),
+        });
+      }
+
+      return converted;
+    },
+    [naturalAspectLayout],
   );
 
   const generateLayout = useCallback(
-    (baseLayout: Layout | undefined) => {
+    (baseLayout: Layout | undefined): Layout | undefined => {
       if (!isGridLayoutLoaded) {
         return;
       }
@@ -179,91 +363,98 @@ export default function DraggableGridLayout({
           ? ["birdseye", ...cameras.map((camera) => camera?.name || "")]
           : cameras.map((camera) => camera?.name || "");
 
-      const optionsMap: LayoutItem[] = baseLayout
+      const existing: LayoutItem[] = baseLayout
-        ? baseLayout.filter((layout) => cameraNames?.includes(layout.i))
+        ? baseLayout.filter((layout) => cameraNames.includes(layout.i))
         : [];
+      const placed = new Set(existing.map((layout) => layout.i));
 
-      cameraNames.forEach((cameraName, index) => {
+      const tileColumns = GRID_COLS / TILE_BASE_W; // 3 standard columns
-        const existingLayout = optionsMap.find(
+      // Each column starts below every existing tile that overlaps it, so new
-          (layout) => layout.i === cameraName,
+      // cameras fill open columns without overlapping the user's tiles.
-        );
+      const colBottoms = Array.from({ length: tileColumns }, (_, c) =>
+        existing.reduce(
+          (max, layout) =>
+            layout.x < (c + 1) * TILE_BASE_W &&
+            layout.x + layout.w > c * TILE_BASE_W
+              ? Math.max(max, layout.y + layout.h)
+              : max,
+          0,
+        ),
+      );
 
-        // Skip if the camera already exists in the layout
+      const result: LayoutItem[] = [...existing];
-        if (existingLayout) {
+
+      cameraNames.forEach((name) => {
+        if (placed.has(name)) {
           return;
         }
+        const { w, h } = dimsFor(name);
 
-        let aspectRatio;
+        if (w === TILE_BASE_W) {
-        let col;
+          let col = 0;
-
+          for (let c = 1; c < tileColumns; c++) {
-        // Handle "birdseye" camera as a special case
+            if (colBottoms[c] < colBottoms[col]) {
-        if (cameraName === "birdseye") {
+              col = c;
-          aspectRatio =
+            }
-            (birdseyeConfig?.width || 1) / (birdseyeConfig?.height || 1);
+          }
-          col = 0; // Set birdseye camera in the first column
+          result.push({
+            i: name,
+            x: col * TILE_BASE_W,
+            y: colBottoms[col],
+            w,
+            h,
+          });
+          colBottoms[col] += h;
         } else {
-          const camera = cameras.find((cam) => cam.name === cameraName);
+          let pair = 0;
-          aspectRatio =
+          for (let c = 1; c + 1 < tileColumns; c++) {
-            (camera && camera?.detect.width / camera?.detect.height) || 16 / 9;
+            if (
-          col = index % 3; // Regular cameras distributed across columns
+              Math.max(colBottoms[c], colBottoms[c + 1]) <
+              Math.max(colBottoms[pair], colBottoms[pair + 1])
+            ) {
+              pair = c;
+            }
+          }
+          const y = Math.max(colBottoms[pair], colBottoms[pair + 1]);
+          result.push({ i: name, x: pair * TILE_BASE_W, y, w, h });
+          colBottoms[pair] = y + h;
+          colBottoms[pair + 1] = y + h;
         }
-
-        // Calculate layout options based on aspect ratio
-        const columnsPerPlayer = 4;
-        let height;
-        let width;
-
-        if (aspectRatio < 1) {
-          // Portrait
-          height = 2 * columnsPerPlayer;
-          width = columnsPerPlayer;
-        } else if (aspectRatio > 2) {
-          // Wide
-          height = 1 * columnsPerPlayer;
-          width = 2 * columnsPerPlayer;
-        } else {
-          // Landscape
-          height = 1 * columnsPerPlayer;
-          width = columnsPerPlayer;
-        }
-
-        const options = {
-          i: cameraName,
-          x: col * width,
-          y: 0, // don't set y, grid does automatically
-          w: width,
-          h: height,
-        };
-
-        optionsMap.push(options);
       });
 
-      return optionsMap;
+      return result;
     },
-    [cameras, isGridLayoutLoaded, includeBirdseye, birdseyeConfig],
+    [cameras, isGridLayoutLoaded, includeBirdseye, birdseyeConfig, dimsFor],
   );
 
   useEffect(() => {
-    if (isGridLayoutLoaded) {
+    if (!isGridLayoutLoaded) {
-      if (gridLayout) {
+      return;
-        // set current grid layout from loaded, possibly adding new cameras
+    }
-        const updatedLayout = generateLayout(gridLayout);
+
-        setCurrentGridLayout(updatedLayout);
+    const saved = readPersistedLayout(gridLayout);
-        // Only save if cameras were added (layout changed)
+    const converted = saved ? undefined : convertLegacyLayout(gridLayout);
-        if (!isEqual(updatedLayout, gridLayout)) {
+    const base = saved ?? converted;
-          setGridLayout(updatedLayout);
+
-        }
+    if (base) {
-        // Set camera tracking state so the camera-change effect has a baseline
+      const updatedLayout = generateLayout(base) ?? base;
-        setCurrentCameras(cameras);
+      setCurrentGridLayout(updatedLayout);
-        setCurrentIncludeBirdseye(includeBirdseye);
+      if (converted || !isEqual(updatedLayout, base)) {
-      } else {
+        setGridLayout(toPersisted(updatedLayout));
-        // idb is empty, set it with an initial layout
-        const newLayout = generateLayout(undefined);
-        setCurrentGridLayout(newLayout);
-        setGridLayout(newLayout);
-        setCurrentCameras(cameras);
-        setCurrentIncludeBirdseye(includeBirdseye);
       }
+      setCurrentCameras(cameras);
+      setCurrentIncludeBirdseye(includeBirdseye);
+      setCurrentNaturalAspect(
+        converted ? naturalAspectLayout : gridLayout?.naturalAspect,
+      );
+    } else {
+      // empty or incompatible (pre-masonry) data
+      const newLayout = generateLayout(undefined) ?? [];
+      setCurrentGridLayout(newLayout);
+      setGridLayout(toPersisted(newLayout));
+      setCurrentCameras(cameras);
+      setCurrentIncludeBirdseye(includeBirdseye);
+      setCurrentNaturalAspect(naturalAspectLayout);
     }
   }, [
     gridLayout,
@@ -272,12 +463,15 @@ export default function DraggableGridLayout({
     generateLayout,
     cameras,
     includeBirdseye,
+    naturalAspectLayout,
+    readPersistedLayout,
+    convertLegacyLayout,
+    toPersisted,
   ]);
 
   useEffect(() => {
-    // Only regenerate layout when cameras change WITHIN an already-loaded group
+    // Only for camera changes within a loaded group; undefined currentCameras
-    // Skip if currentCameras is undefined (means we just switched groups and
+    // means the load effect above has not run yet.
-    // the first useEffect hasn't run yet to set things up)
     if (!isGridLayoutLoaded || currentCameras === undefined) {
       return;
     }
@@ -289,10 +483,10 @@ export default function DraggableGridLayout({
       setCurrentCameras(cameras);
       setCurrentIncludeBirdseye(includeBirdseye);
 
-      // Regenerate layout based on current layout, adding any new cameras
+      const updatedLayout =
-      const updatedLayout = generateLayout(currentGridLayout);
+        generateLayout(currentGridLayout) ?? currentGridLayout ?? [];
       setCurrentGridLayout(updatedLayout);
-      setGridLayout(updatedLayout);
+      setGridLayout(toPersisted(updatedLayout));
     }
   }, [
     cameras,
@@ -303,39 +497,47 @@ export default function DraggableGridLayout({
     generateLayout,
     setGridLayout,
     isGridLayoutLoaded,
+    toPersisted,
   ]);
 
-  const [marginValue, setMarginValue] = useState(16);
+  useEffect(() => {
+    if (
+      !isNaturalAspectLoaded ||
+      currentNaturalAspect === undefined ||
+      currentNaturalAspect === naturalAspectLayout
+    ) {
+      return;
+    }
 
-  // calculate margin value for browsers that don't have default font size of 16px
+    setCurrentNaturalAspect(naturalAspectLayout);
-  useLayoutEffect(() => {
+    const regenerated = generateLayout(undefined) ?? [];
-    const calculateRemValue = () => {
+    setCurrentGridLayout(regenerated);
-      const htmlElement = document.documentElement;
+    setGridLayout(toPersisted(regenerated));
-      const fontSize = window.getComputedStyle(htmlElement).fontSize;
+  }, [
-      setMarginValue(parseFloat(fontSize));
+    naturalAspectLayout,
-    };
+    isNaturalAspectLoaded,
+    currentNaturalAspect,
+    generateLayout,
+    setGridLayout,
+    toPersisted,
+  ]);
 
-    calculateRemValue();
+  const gridContainerRef = useRef<HTMLDivElement | null>(null);
+
+  // Commit-time measure: paints the first frame at the real width (no
+  // innerWidth flash), and the setState re-render is what lets
+  // useResizeObserver see a node mounted after the skeleton swap.
+  const [mountWidth, setMountWidth] = useState<number | null>(null);
+
+  const attachGridContainer = useCallback((node: HTMLDivElement | null) => {
+    gridContainerRef.current = node;
+    setMountWidth(node ? node.getBoundingClientRect().width : null);
   }, []);
 
-  const gridContainerRef = useRef<HTMLDivElement>(null);
-
   const [{ width: containerWidth, height: containerHeight }] =
     useResizeObserver(gridContainerRef);
 
-  const scrollBarWidth = useMemo(() => {
+  const availableWidth = containerWidth || mountWidth || 0;
-    if (containerWidth && containerHeight && containerRef.current) {
-      return (
-        containerRef.current.offsetWidth - containerRef.current.clientWidth
-      );
-    }
-    return 0;
-  }, [containerRef, containerHeight, containerWidth]);
-
-  const availableWidth = useMemo(
-    () => (scrollBarWidth ? containerWidth + scrollBarWidth : containerWidth),
-    [containerWidth, scrollBarWidth],
-  );
 
   const hasScrollbar = useMemo(() => {
     if (containerHeight && containerRef.current) {
@@ -346,61 +548,10 @@ export default function DraggableGridLayout({
   }, [containerRef, containerHeight]);
 
   const cellHeight = useMemo(() => {
-    const aspectRatio = 16 / 9;
+    const width = availableWidth || window.innerWidth;
-    // subtract container margin, 1 camera takes up at least 4 rows
+    const columnWidth = width / GRID_COLS;
-    // account for additional margin on bottom of each row
+    return columnWidth / VERTICAL_RESOLUTION;
-    return (
+  }, [availableWidth]);
-      ((availableWidth ?? window.innerWidth) - 2 * marginValue) /
-        12 /
-        aspectRatio -
-      marginValue +
-      marginValue / 4
-    );
-  }, [availableWidth, marginValue]);
-
-  const handleResize = (
-    _layout: Layout,
-    oldLayoutItem: LayoutItem | null,
-    layoutItem: LayoutItem | null,
-    placeholder: LayoutItem | null,
-  ) => {
-    if (!oldLayoutItem || !layoutItem || !placeholder) return;
-
-    const heightDiff = layoutItem.h - oldLayoutItem.h;
-    const widthDiff = layoutItem.w - oldLayoutItem.w;
-    const changeCoef = oldLayoutItem.w / oldLayoutItem.h;
-
-    let newWidth, newHeight;
-
-    if (Math.abs(heightDiff) < Math.abs(widthDiff)) {
-      newHeight = Math.round(layoutItem.w / changeCoef);
-      newWidth = Math.round(newHeight * changeCoef);
-    } else {
-      newWidth = Math.round(layoutItem.h * changeCoef);
-      newHeight = Math.round(newWidth / changeCoef);
-    }
-
-    // Ensure dimensions maintain aspect ratio and fit within the grid
-    if (layoutItem.x + newWidth > 12) {
-      newWidth = 12 - layoutItem.x;
-      newHeight = Math.round(newWidth / changeCoef);
-    }
-
-    if (changeCoef == 0.5) {
-      // portrait
-      newHeight = Math.ceil(newHeight / 2) * 2;
-    } else if (changeCoef == 2) {
-      // pano/wide
-      newHeight = Math.ceil(newHeight * 2) / 2;
-    }
-
-    newWidth = Math.round(newHeight * changeCoef);
-
-    layoutItem.w = newWidth;
-    layoutItem.h = newHeight;
-    placeholder.w = layoutItem.w;
-    placeholder.h = layoutItem.h;
-  };
 
   // audio and stats states
 
@@ -503,6 +654,19 @@ export default function DraggableGridLayout({
     onSaveMuting(true);
   };
 
+  // RGL's per-item constraint derives height from width, holding each tile at
+  // its camera's aspect while resizing. Constraints are functions, so they live
+  // only on this render copy; toPersisted strips them.
+  const layoutWithConstraints = useMemo(() => {
+    if (!currentGridLayout) {
+      return [] as Layout;
+    }
+    return currentGridLayout.map((item) => ({
+      ...item,
+      constraints: [aspectRatio(layoutAspects[item.i] ?? DEFAULT_ASPECT)],
+    }));
+  }, [currentGridLayout, layoutAspects]);
+
   return (
     <>
       <Toaster position="top-center" closeButton={true} />
@@ -525,8 +689,8 @@ export default function DraggableGridLayout({
         </div>
       ) : (
         <div
-          className="no-scrollbar my-2 select-none overflow-x-hidden px-2 pb-8"
+          className="no-scrollbar my-2 select-none overflow-x-hidden pb-8"
-          ref={gridContainerRef}
+          ref={attachGridContainer}
         >
           <EditGroupDialog
             open={editGroup}
@@ -536,28 +700,36 @@ export default function DraggableGridLayout({
           />
           <Responsive
             className="grid-layout"
-            width={availableWidth ?? window.innerWidth}
+            width={availableWidth || window.innerWidth}
             layouts={{
-              lg: currentGridLayout,
+              lg: layoutWithConstraints,
-              md: currentGridLayout,
+              md: layoutWithConstraints,
-              sm: currentGridLayout,
+              sm: layoutWithConstraints,
-              xs: currentGridLayout,
+              xs: layoutWithConstraints,
-              xxs: currentGridLayout,
+              xxs: layoutWithConstraints,
             }}
             rowHeight={cellHeight}
             breakpoints={{ lg: 1200, md: 996, sm: 768, xs: 480, xxs: 0 }}
-            cols={{ lg: 12, md: 12, sm: 12, xs: 12, xxs: 12 }}
+            cols={{
-            margin={[marginValue, marginValue]}
+              lg: GRID_COLS,
+              md: GRID_COLS,
+              sm: GRID_COLS,
+              xs: GRID_COLS,
+              xxs: GRID_COLS,
+            }}
+            margin={[0, 0]}
+            compactor={FREE_PLACEMENT_COMPACTOR}
             containerPadding={[0, isEditMode ? 6 : 3]}
             resizeConfig={{
               enabled: isEditMode,
-              handles: isEditMode ? ["sw", "nw", "se", "ne"] : [],
+              // se only: top/left handles fight the aspect constraint at a grid
+              // boundary (RGL re-clamps the opposite edge) and distort the tile.
+              handles: isEditMode ? ["se"] : [],
             }}
             dragConfig={{
               enabled: isEditMode,
             }}
             onDragStop={handleLayoutChange}
-            onResize={handleResize}
             onResizeStart={() => setShowCircles(false)}
             onResizeStop={handleLayoutChange}
           >
@@ -570,22 +742,12 @@ export default function DraggableGridLayout({
                     "outline outline-2 outline-muted-foreground hover:cursor-grab hover:outline-4 active:cursor-grabbing",
                 )}
                 birdseyeConfig={birdseyeConfig}
+                aspectRatio={layoutAspects["birdseye"] ?? DEFAULT_ASPECT}
                 liveMode={birdseyeConfig.restream ? "mse" : "jsmpeg"}
                 onClick={() => onSelectCamera("birdseye")}
-              >
+              ></BirdseyeLivePlayerGridItem>
-                {isEditMode && showCircles && <CornerCircles />}
-              </BirdseyeLivePlayerGridItem>
             )}
             {cameras.map((camera) => {
-              let grow;
-              const aspectRatio = camera.detect.width / camera.detect.height;
-              if (aspectRatio > ASPECT_WIDE_LAYOUT) {
-                grow = `aspect-wide w-full`;
-              } else if (aspectRatio < ASPECT_VERTICAL_LAYOUT) {
-                grow = `aspect-tall h-full`;
-              } else {
-                grow = "aspect-video";
-              }
               const availableStreams = camera.live.streams || {};
               const firstStreamEntry = Object.values(availableStreams)[0] || "";
 
@@ -614,7 +776,14 @@ export default function DraggableGridLayout({
                   ?.compatibilityMode || false;
               return (
                 <GridLiveContextMenu
-                  className={grow}
+                  className={CARD_FIT}
+                  aspectRatio={
+                    (naturalAspectLayout
+                      ? liveAspects[camera.name]
+                      : undefined) ??
+                    layoutAspects[camera.name] ??
+                    DEFAULT_ASPECT
+                  }
                   key={camera.name}
                   camera={camera.name}
                   streamName={streamName}
@@ -653,8 +822,8 @@ export default function DraggableGridLayout({
                     useWebGL={useWebGL}
                     cameraRef={cameraRef}
                     className={cn(
-                      "rounded-lg bg-black md:rounded-2xl",
+                      "size-full",
-                      grow,
+                      naturalAspectLayout ? "bg-background" : "bg-black",
                       isEditMode &&
                         showCircles &&
                         "outline-2 outline-muted-foreground hover:cursor-grab hover:outline-4 active:cursor-grabbing",
@@ -675,8 +844,8 @@ export default function DraggableGridLayout({
                     onResetLiveMode={() => resetPreferredLiveMode(camera.name)}
                     playAudio={audioStates[camera.name]}
                     volume={volumeStates[camera.name]}
+                    onLiveAspectChange={liveAspectHandlers[camera.name]}
                   />
-                  {isEditMode && showCircles && <CornerCircles />}
                 </GridLiveContextMenu>
               );
             })}
@@ -694,6 +863,7 @@ export default function DraggableGridLayout({
               <Tooltip>
                 <TooltipTrigger asChild>
                   <div
+                    data-testid="toggle-edit-layout"
                     className="cursor-pointer rounded-lg bg-secondary text-secondary-foreground opacity-60 transition-all duration-300 hover:bg-muted hover:opacity-100"
                     onClick={() =>
                       setIsEditMode((prevIsEditMode) => !prevIsEditMode)
@@ -762,17 +932,6 @@ export default function DraggableGridLayout({
   );
 }
 
-function CornerCircles() {
-  return (
-    <>
-      <div className="pointer-events-none absolute left-[-4px] top-[-4px] z-50 size-3 rounded-full bg-primary-variant p-2 text-background outline-2 outline-muted" />
-      <div className="pointer-events-none absolute right-[-4px] top-[-4px] z-50 size-3 rounded-full bg-primary-variant p-2 text-background outline-2 outline-muted" />
-      <div className="pointer-events-none absolute bottom-[-4px] right-[-4px] z-50 size-3 rounded-full bg-primary-variant p-2 text-background outline-2 outline-muted" />
-      <div className="pointer-events-none absolute bottom-[-4px] left-[-4px] z-50 size-3 rounded-full bg-primary-variant p-2 text-background outline-2 outline-muted" />
-    </>
-  );
-}
-
 type BirdseyeLivePlayerGridItemProps = {
   style?: React.CSSProperties;
   className?: string;
@@ -781,6 +940,7 @@ type BirdseyeLivePlayerGridItemProps = {
   onTouchEnd?: React.TouchEventHandler<HTMLDivElement>;
   children?: React.ReactNode;
   birdseyeConfig: BirdseyeConfig;
+  aspectRatio: number;
   liveMode: LivePlayerMode;
   onClick: () => void;
 };
@@ -798,6 +958,7 @@ const BirdseyeLivePlayerGridItem = React.forwardRef<
       onTouchEnd,
       children,
       birdseyeConfig,
+      aspectRatio: cellAspect,
       liveMode,
       onClick,
       ...props
@@ -806,7 +967,8 @@ const BirdseyeLivePlayerGridItem = React.forwardRef<
   ) => {
     return (
       <div
-        style={{ ...style }}
+        className="flex items-center justify-center p-1 [container-type:size]"
+        style={{ ...style, "--ar": cellAspect } as React.CSSProperties}
         ref={ref}
         onMouseDown={onMouseDown}
         onMouseUp={onMouseUp}
@@ -814,7 +976,7 @@ const BirdseyeLivePlayerGridItem = React.forwardRef<
         {...props}
       >
         <BirdseyeLivePlayer
-          className={className}
+          className={cn(CARD_FIT, className)}
           birdseyeConfig={birdseyeConfig}
           liveMode={liveMode}
           onClick={onClick}
@@ -829,6 +991,7 @@ const BirdseyeLivePlayerGridItem = React.forwardRef<
 type GridLiveContextMenuProps = {
   className?: string;
   style?: React.CSSProperties;
+  aspectRatio?: number;
   onMouseDown?: React.MouseEventHandler<HTMLDivElement>;
   onMouseUp?: React.MouseEventHandler<HTMLDivElement>;
   onTouchEnd?: React.TouchEventHandler<HTMLDivElement>;
@@ -860,6 +1023,7 @@ const GridLiveContextMenu = React.forwardRef<
     {
       className,
       style,
+      aspectRatio: cameraAspect,
       onMouseDown,
       onMouseUp,
       onTouchEnd,
@@ -887,7 +1051,8 @@ const GridLiveContextMenu = React.forwardRef<
   ) => {
     return (
       <div
-        style={{ ...style }}
+        className="flex items-center justify-center p-1 [container-type:size]"
+        style={{ ...style, "--ar": cameraAspect } as React.CSSProperties}
         ref={ref}
         onMouseDown={onMouseDown}
         onMouseUp={onMouseUp}

web/src/views/live/LiveBirdseyeView.tsx

@@ -295,7 +295,7 @@ export default function LiveBirdseyeView({
               onClick={handleOverlayClick}
             >
               <BirdseyeLivePlayer
-                className={`${fullscreen ? "*:rounded-none" : ""}`}
+                className={fullscreen ? "rounded-none" : ""}
                 birdseyeConfig={config.birdseye}
                 liveMode={preferredLiveMode}
                 containerRef={containerRef}

web/src/views/live/LiveCameraView.tsx

@@ -860,7 +860,7 @@ export default function LiveCameraView({
                 )}
                 <LivePlayer
                   key={camera.name}
-                  className={`${fullscreen ? "*:rounded-none" : ""}`}
+                  className={fullscreen ? "rounded-none" : ""}
                   windowVisible
                   showStillWithoutActivity={false}
                   alwaysShowCameraName={false}

web/src/views/live/LiveDashboardView.tsx

@@ -410,7 +410,7 @@ export default function LiveDashboardView({
 
   return (
     <div
-      className="scrollbar-container size-full select-none overflow-y-auto px-1 pt-2 md:p-2"
+      className="scrollbar-container size-full select-none overflow-y-auto px-1 pt-2 [scrollbar-gutter:stable] md:p-2"
       ref={containerRef}
     >
       {isMobile && (
@@ -609,7 +609,7 @@ export default function LiveDashboardView({
                       <LivePlayer
                         cameraRef={cameraRef}
                         key={camera.name}
-                        className={`${grow} rounded-lg bg-black md:rounded-2xl`}
+                        className={`${grow} bg-black`}
                         windowVisible={
                           windowVisible && visibleCameras.includes(camera.name)
                         }

web/src/views/settings/UiSettingsView.tsx

@@ -10,14 +10,14 @@ import {
   useState,
 } from "react";
 import { toast } from "sonner";
-import { Button } from "../../components/ui/button";
+import { Button, buttonVariants } from "../../components/ui/button";
 import useSWR from "swr";
 import { FrigateConfig } from "@/types/frigateConfig";
 import {
   useUserPersistence,
   deleteUserNamespacedKey,
 } from "@/hooks/use-user-persistence";
-import { isSafari } from "react-device-detect";
+import { isMobileOnly } from "react-device-detect";
 import {
   Select,
   SelectContent,
@@ -34,6 +34,17 @@ import {
   CONTROL_COLUMN_CLASS_NAME,
 } from "@/components/card/SettingsGroupCard";
 import Heading from "@/components/ui/heading";
+import {
+  AlertDialog,
+  AlertDialogAction,
+  AlertDialogCancel,
+  AlertDialogContent,
+  AlertDialogDescription,
+  AlertDialogFooter,
+  AlertDialogHeader,
+  AlertDialogTitle,
+} from "@/components/ui/alert-dialog";
+import { cn } from "@/lib/utils";
 import ImportUiSettingsDialog from "@/components/overlay/dialog/ImportUiSettingsDialog";
 import {
   applyImportPayload,
@@ -52,6 +63,8 @@ import {
 const WEEK_STARTS_ON = ["Sunday", "Monday"];
 const IMPORT_FAILED_FLAG = "frigate-ui-settings-import-failed";
 
+type ConfirmTarget = "layouts" | "streaming" | "naturalAspect";
+
 type SwitchSettingRowProps = {
   id: string;
   label: string;
@@ -132,7 +145,7 @@ export default function UiSettingsView() {
   const { auth } = useContext(AuthContext);
   const username = auth?.user?.username;
 
-  const PLAYBACK_RATE_DEFAULT = isSafari ? [0.5, 1, 2] : [0.5, 1, 2, 4, 8, 16];
+  const PLAYBACK_RATE_DEFAULT = [0.5, 1, 2, 4, 8, 16];
 
   const clearStoredLayouts = useCallback(() => {
     if (!config) {
@@ -322,6 +335,10 @@ export default function UiSettingsView() {
     "displayCameraNames",
     false,
   );
+  const [naturalAspect, setNaturalAspect] = useUserPersistence(
+    "naturalAspectLayout",
+    false,
+  );
   const [playbackRate, setPlaybackRate] = useUserPersistence("playbackRate", 1);
   const [weekStartsOn, setWeekStartsOn] = useUserPersistence("weekStartsOn", 0);
   const [alertVideos, setAlertVideos] = useUserPersistence("alertVideos", true);
@@ -330,6 +347,66 @@ export default function UiSettingsView() {
     3,
   );
 
+  const [pendingConfirm, setPendingConfirm] = useState<ConfirmTarget | null>(
+    null,
+  );
+
+  const confirmCopy = useCallback(
+    (target: ConfirmTarget) => {
+      // literal keys per branch: a template key would be invisible to
+      // npm run i18n:extract, which CI verifies
+      switch (target) {
+        case "layouts":
+          return {
+            title: t("general.storedLayouts.clearAll"),
+            description: t("general.storedLayouts.clearConfirm"),
+            action: t("button.clear", { ns: "common" }),
+          };
+        case "streaming":
+          return {
+            title: t("general.cameraGroupStreaming.clearAll"),
+            description: t("general.cameraGroupStreaming.clearConfirm"),
+            action: t("button.clear", { ns: "common" }),
+          };
+        case "naturalAspect":
+          return {
+            title: t("general.liveDashboard.naturalAspectLayout.label"),
+            description: t(
+              "general.liveDashboard.naturalAspectLayout.descNote",
+            ),
+            action: naturalAspect
+              ? t("button.disable", { ns: "common" })
+              : t("button.enable", { ns: "common" }),
+          };
+      }
+    },
+    [naturalAspect, t],
+  );
+
+  const handleConfirm = useCallback(() => {
+    switch (pendingConfirm) {
+      case "layouts":
+        clearStoredLayouts();
+        break;
+      case "streaming":
+        clearStreamingSettings();
+        break;
+      case "naturalAspect":
+        // a layout only renders in the mode that built it
+        setNaturalAspect(!naturalAspect);
+        clearStoredLayouts();
+        break;
+    }
+
+    setPendingConfirm(null);
+  }, [
+    pendingConfirm,
+    clearStoredLayouts,
+    clearStreamingSettings,
+    naturalAspect,
+    setNaturalAspect,
+  ]);
+
   const liveDashboardSwitchRows = [
     {
       id: "auto-live",
@@ -352,6 +429,18 @@ export default function UiSettingsView() {
       checked: cameraNames,
       onCheckedChange: setCameraName,
     },
+    // phones use the static grid, so tile sizing has nothing to affect there
+    ...(isMobileOnly
+      ? []
+      : [
+          {
+            id: "natural-aspect",
+            label: t("general.liveDashboard.naturalAspectLayout.label"),
+            description: t("general.liveDashboard.naturalAspectLayout.desc"),
+            checked: naturalAspect,
+            onCheckedChange: () => setPendingConfirm("naturalAspect"),
+          },
+        ]),
   ];
 
   return (
@@ -420,7 +509,7 @@ export default function UiSettingsView() {
                     id="stored-layouts-clear"
                     aria-label={t("general.storedLayouts.clearAll")}
                     className="w-full md:w-auto"
-                    onClick={clearStoredLayouts}
+                    onClick={() => setPendingConfirm("layouts")}
                   >
                     {t("general.storedLayouts.clearAll")}
                   </Button>
@@ -436,7 +525,7 @@ export default function UiSettingsView() {
                     id="camera-group-streaming-clear"
                     aria-label={t("general.cameraGroupStreaming.clearAll")}
                     className="w-full md:w-auto"
-                    onClick={clearStreamingSettings}
+                    onClick={() => setPendingConfirm("streaming")}
                   >
                     {t("general.cameraGroupStreaming.clearAll")}
                   </Button>
@@ -570,9 +659,41 @@ export default function UiSettingsView() {
           fileName={pendingImport.name}
           file={pendingImport.file}
           summary={pendingImport.summary}
+          currentNaturalAspect={naturalAspect ?? false}
           onConfirm={handleImportConfirm}
         />
       )}
+
+      <AlertDialog
+        open={pendingConfirm != null}
+        onOpenChange={(open) => {
+          if (!open) {
+            setPendingConfirm(null);
+          }
+        }}
+      >
+        <AlertDialogContent>
+          <AlertDialogHeader>
+            <AlertDialogTitle>
+              {pendingConfirm && confirmCopy(pendingConfirm).title}
+            </AlertDialogTitle>
+            <AlertDialogDescription>
+              {pendingConfirm && confirmCopy(pendingConfirm).description}
+            </AlertDialogDescription>
+          </AlertDialogHeader>
+          <AlertDialogFooter>
+            <AlertDialogCancel>
+              {t("button.cancel", { ns: "common" })}
+            </AlertDialogCancel>
+            <AlertDialogAction
+              className={cn(buttonVariants({ variant: "destructive" }))}
+              onClick={handleConfirm}
+            >
+              {pendingConfirm && confirmCopy(pendingConfirm).action}
+            </AlertDialogAction>
+          </AlertDialogFooter>
+        </AlertDialogContent>
+      </AlertDialog>
     </div>
   );
 }