Question

我已将camera2与textureVIew集成在一起。当我们第一次捕获图像时，它适用于所有设备，但在平板电脑上，它会崩溃并显示以下日志。

 Fatal Exception: java.lang.IllegalArgumentException: Surface had no valid native Surface.
           at android.hardware.camera2.legacy.LegacyCameraDevice.nativeGetSurfaceId(LegacyCameraDevice.java)
           at android.hardware.camera2.legacy.LegacyCameraDevice.getSurfaceId(LegacyCameraDevice.java:658)
           at android.hardware.camera2.legacy.LegacyCameraDevice.containsSurfaceId(LegacyCameraDevice.java:678)
           at android.hardware.camera2.legacy.RequestThreadManager$2.onPictureTaken(RequestThreadManager.java:220)
           at android.hardware.Camera$EventHandler.handleMessage(Camera.java:1248)
           at android.os.Handler.dispatchMessage(Handler.java:111)
           at android.os.Looper.loop(Looper.java:207)
           at android.hardware.camera2.legacy.CameraDeviceUserShim$CameraLooper.run(CameraDeviceUserShim.java:136)
           at java.lang.Thread.run(Thread.java:818)

以下代码用于捕获图像。

 protected void takePicture() {
        if (getContext() == null || cameraDevice == null) return;

        lockFocus();
        CameraManager manager = (CameraManager) getContext().getSystemService(Context.CAMERA_SERVICE);
        try {
            CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraDevice.getId());
            if (characteristics != null) {
                sizes = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP).getOutputSizes(ImageFormat.JPEG);
            }

            ImageReader reader = getImageReader();
            if (reader == null) return;

            List<Surface> outputSurfaces = getSurfaces(reader);
            final CaptureRequest.Builder captureBuilder = getCaptureBuilder(reader);

            final CameraCaptureSession.CaptureCallback captureListener = new CameraCaptureSession.CaptureCallback() {
                @Override
                public void onCaptureCompleted(CameraCaptureSession session, CaptureRequest request, TotalCaptureResult result) {
                    super.onCaptureCompleted(session, request, result);
                }
            };
            cameraDevice.createCaptureSession(outputSurfaces, new CameraCaptureSession.StateCallback() {
                @Override
                public void onConfigured(CameraCaptureSession session) {
                    try {
                        session.capture(captureBuilder.build(), captureListener, null);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }

                @Override
                public void onConfigureFailed(CameraCaptureSession session) {
                }
            }, null);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

任何帮助都将不胜感激。

Answer 1

如果ImageReader在相机图片捕获完成之前收集了垃圾，就会发生这种情况。

getImageReader方法是否将图像阅读器存储在永久性的位置（如作为类成员）？如果没有，ImageReader中的Surface就像一个弱引用，并且不会阻止它被移除。

Surface对于Camera2没有有效的原生Surface

1 个答案: