Camera2 ImageReader冻结重复捕获请求

Question

我尝试使用camera2 API从相机捕获图像数据。我主要使用的是从android Capture2RAW示例中获取的代码。在完全停止之前，只有少数图像通过（即调用onImageAvailable）。我尝试使用不同大小的RAW_SENSOR和JPEG格式捕获相同的结果。我做错了什么？

this.mImageReader = ImageReader.newInstance(width, height, ImageFormat.RAW_SENSOR, /*maxImages*/ 1);
Surface surface = this.mImageReader.getSurface();
final List<Surface> surfaces = Arrays.asList(surface);
this.mCamera.createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {
    // Callback methods here
}, null);
CaptureRequest.Builder captureRequestBuilder;
captureRequestBuilder = this.mCamera.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
captureRequestBuilder.addTarget(surface);
this.mCaptureRequest = captureRequestBuilder.build();
this.mCaptureSession.setRepeatingRequest(mCaptureRequest, null, null);

Answer 1

修正了它。 ImageReader生成的图像需要关闭，否则会很快填满内存。

@Override
onImageAvailable(ImageReader reader) {
    Image image = reader.acquireLatestImage();
    // Process the image
    image.close();
}