Android的CameraX获得相机支持分辨率的方法

如题,方法如下:

androidx.camera.core.Camera camera1 = cameraProvider.bindToLifecycle(/* lifecycleOwner= */ this, cameraSelector, analysisUseCase);
        Camera2CameraInfo camera2Info = Camera2CameraInfo.from(camera1.getCameraInfo());
        Size[] size = camera2Info.getCameraCharacteristic(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP).getOutputSizes(ImageFormat.JPEG);
        logger.info("Get size");

  Size的数组即为支持的分辨率,设置分辨率的方法如下:

ImageAnalysis.Builder builder = new ImageAnalysis.Builder();
        ResolutionSelector.Builder resolutionBuilder = new ResolutionSelector.Builder();
        builder.setResolutionSelector(resolutionBuilder.setResolutionStrategy(new ResolutionStrategy(new Size(1920, 1080), ResolutionStrategy.FALLBACK_RULE_NONE)).build());
        analysisUseCase = builder.build();

  Preview的时候:

Preview.Builder builder = new Preview.Builder();
        ResolutionSelector.Builder resolutionBuilder = new ResolutionSelector.Builder();
        builder.setResolutionSelector(resolutionBuilder.setResolutionStrategy(new ResolutionStrategy(new Size(1920, 1080), ResolutionStrategy.FALLBACK_RULE_NONE)).build());
        //builder.setResolutionSelector(resolutionBuilder.setResolutionStrategy(ResolutionStrategy.HIGHEST_AVAILABLE_STRATEGY).build());
        previewUseCase = builder.build();

  

posted @ 2024-04-08 14:02  West Continent  阅读(1022)  评论(0编辑  收藏  举报