[cscore] VideoMode: Add equals override (Java) (#5397)

cscore/src/main/java/edu/wpi/first/cscore/VideoMode.java

@@ -4,6 +4,8 @@
 
 package edu.wpi.first.cscore;
 
+import java.util.Objects;
+
 /** Video mode. */
 @SuppressWarnings("MemberName")
 public class VideoMode {
@@ -75,4 +77,28 @@ public class VideoMode {
 
   /** Frames per second. */
   public int fps;
+
+  @Override
+  public boolean equals(Object other) {
+    if (this == other) {
+      return true;
+    }
+    if (other == null) {
+      return false;
+    }
+    if (getClass() != other.getClass()) {
+      return false;
+    }
+    VideoMode mode = (VideoMode) other;
+
+    return pixelFormat == mode.pixelFormat
+        && width == mode.width
+        && height == mode.height
+        && fps == mode.fps;
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(pixelFormat, width, height, fps);
+  }
 }

cscore/src/test/java/edu/wpi/first/cscore/VideoModeTest.java

@@ -0,0 +1,21 @@
+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+package edu.wpi.first.cscore;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+
+import org.junit.jupiter.api.Test;
+
+class VideoModeTest {
+  @Test
+  void equalityTest() {
+    VideoMode a = new VideoMode(VideoMode.PixelFormat.kMJPEG, 1920, 1080, 30);
+    VideoMode b = new VideoMode(VideoMode.PixelFormat.kMJPEG, 1920, 1080, 30);
+
+    assertEquals(a, b);
+    assertNotEquals(a, null);
+  }
+}