[camera_android_camerax] video encoding bitrate support

packages/camera/camera_android_camerax/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.7.3
+
+* Supports video encoding bitrate.
+
 ## 0.7.2+1
 
 * Migrates to Built-in Kotlin to support AGP 9.

packages/camera/camera_android_camerax/lib/src/android_camera_camerax.dart

@@ -413,7 +413,10 @@ class AndroidCameraCameraX extends CameraPlatform {
     );
 
     // Configure VideoCapture and Recorder instances.
-    recorder = Recorder(qualitySelector: presetQualitySelector);
+    recorder = Recorder(
+      qualitySelector: presetQualitySelector,
+      targetVideoEncodingBitRate: mediaSettings?.videoBitrate,
+    );
     videoCapture = VideoCapture.withOutput(videoOutput: recorder!, targetFpsRange: _targetFpsRange);
 
     // Retrieve info required for correcting the rotation of the camera preview

packages/camera/camera_android_camerax/pubspec.yaml

@@ -2,7 +2,7 @@ name: camera_android_camerax
 description: Android implementation of the camera plugin using the CameraX library.
 repository: https://github.com/flutter/packages/tree/main/packages/camera/camera_android_camerax
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+camera%22
-version: 0.7.2+1
+version: 0.7.3
 
 environment:
   sdk: ^3.12.0

packages/camera/camera_android_camerax/test/android_camera_camerax_test.dart

@@ -5531,6 +5531,108 @@ void main() {
       verifyNoMoreInteractions(camera.camera);
     },
   );
+
+  test(
+    'createCameraWithSettings passes video bitrate to Recorder',
+        () async {
+      final camera = AndroidCameraCameraX();
+      const CameraLensDirection testLensDirection = CameraLensDirection.back;
+      const testSensorOrientation = 90;
+      const testCameraDescription = CameraDescription(
+        name: 'cameraName',
+        lensDirection: testLensDirection,
+        sensorOrientation: testSensorOrientation,
+      );
+      const testVideoBitrate = 5000000;
+
+      int? capturedVideoBitrate;
+
+      final mockProcessCameraProvider = MockProcessCameraProvider();
+      final mockCamera = MockCamera();
+      final mockCameraInfo = MockCameraInfo();
+
+      when(mockProcessCameraProvider.bindToLifecycle(any, any))
+          .thenAnswer((_) async => mockCamera);
+      when(mockCamera.getCameraInfo()).thenAnswer((_) async => mockCameraInfo);
+      when(mockCameraInfo.getCameraState())
+          .thenAnswer((_) async => MockLiveCameraState());
+
+      setUpOverridesForTestingUseCaseConfiguration(mockProcessCameraProvider);
+
+      PigeonOverrides.recorder_new = ({
+        int? aspectRatio,
+        int? targetVideoEncodingBitRate,
+        QualitySelector? qualitySelector,
+      }) {
+        capturedVideoBitrate = targetVideoEncodingBitRate;
+        final mockRecorder = MockRecorder();
+        when(mockRecorder.getQualitySelector())
+            .thenAnswer((_) async => qualitySelector ?? MockQualitySelector());
+        return mockRecorder;
+      };
+
+      camera.processCameraProvider = mockProcessCameraProvider;
+
+      await camera.createCameraWithSettings(
+        testCameraDescription,
+        const MediaSettings(
+          videoBitrate: testVideoBitrate,
+          enableAudio: true,
+        ),
+      );
+
+      expect(capturedVideoBitrate, equals(testVideoBitrate));
+    },
+  );
+
+  test(
+    'createCameraWithSettings passes null video bitrate when not specified',
+        () async {
+      final camera = AndroidCameraCameraX();
+      const CameraLensDirection testLensDirection = CameraLensDirection.back;
+      const testSensorOrientation = 90;
+      const testCameraDescription = CameraDescription(
+        name: 'cameraName',
+        lensDirection: testLensDirection,
+        sensorOrientation: testSensorOrientation,
+      );
+
+      int? capturedVideoBitrate;
+
+      final mockProcessCameraProvider = MockProcessCameraProvider();
+      final mockCamera = MockCamera();
+      final mockCameraInfo = MockCameraInfo();
+
+      when(mockProcessCameraProvider.bindToLifecycle(any, any))
+          .thenAnswer((_) async => mockCamera);
+      when(mockCamera.getCameraInfo()).thenAnswer((_) async => mockCameraInfo);
+      when(mockCameraInfo.getCameraState())
+          .thenAnswer((_) async => MockLiveCameraState());
+
+      setUpOverridesForTestingUseCaseConfiguration(mockProcessCameraProvider);
+
+      PigeonOverrides.recorder_new = ({
+        int? aspectRatio,
+        int? targetVideoEncodingBitRate,
+        QualitySelector? qualitySelector,
+      }) {
+        capturedVideoBitrate = targetVideoEncodingBitRate;
+        final mockRecorder = MockRecorder();
+        when(mockRecorder.getQualitySelector())
+            .thenAnswer((_) async => qualitySelector ?? MockQualitySelector());
+        return mockRecorder;
+      };
+
+      camera.processCameraProvider = mockProcessCameraProvider;
+
+      await camera.createCameraWithSettings(
+        testCameraDescription,
+        const MediaSettings(enableAudio: true),
+      );
+
+      expect(capturedVideoBitrate, isNull);
+    },
+  );
 }
 
 class TestMeteringPoint extends MeteringPoint {