录制时更改ISO值-Android Camera2

我正试图实现以下示例中的视频捕获应用程序

我可以更改ISO值，更新预览并使用该值制作视频，但我也想让我的用户在录制时更改ISO值，而不中断视频，但我无法找到方法。
这是我用来开始录制的代码：

private void startRecording() {
    final Camera2Controller me = this;
    try {
        this.mediaRecorder = this.prepareMediaRecorder(); // Nothing special about it
        final CaptureRequest.Builder requestBuilder = this.getCameraDevice().createCaptureRequest(CameraDevice.TEMPLATE_RECORD);
        this.updateRequestForCapture(requestBuilder);
        ArrayList<Surface> surfaces = new ArrayList<>();
        surfaces.add(this.surfaceHolder.getSurface());
        surfaces.add(this.mediaRecorder.getSurface());
        for (Surface target : surfaces) {
            requestBuilder.addTarget(target);
        }
        this.captureRequest = requestBuilder.build();
        this.getCameraDevice().createCaptureSession(surfaces, new CameraCaptureSession.StateCallback() {

            @Override
            public void onConfigured(@NonNull CameraCaptureSession session) {
                try {
                    me.setCaptureSession(session);
                    session.setRepeatingRequest(me.captureRequest, null, null);
                    me.mediaRecorder.start();
                    me._isRecording = true;
                }
                catch (Exception e) {
                    try {
                        me._isRecording = false;
                        me.getCaptureSession().stopRepeating();
                        me.getCaptureSession().abortCaptures();
                        me.getCaptureSession().close();
                    }
                    catch (CameraAccessException cae) {
                        cae.printStackTrace();
                    }
                    finally {
                        me.mediaRecorder.reset();
                        me.mediaRecorder.release();
                        me.mediaRecorder = null;
                    }
                }
            }

            @Override
            public void onConfigureFailed(@NonNull CameraCaptureSession session) {
                me._isRecording = false;
            }
        }, this);
    }
    catch (CameraAccessException e) {
        me._isRecording = false;
    }
}

public void updateRequestForCapture(CaptureRequest.Builder requestBuilder) {
    requestBuilder.set(CaptureRequest.CONTROL_MODE, this.ControlMode);
    requestBuilder.set(CaptureRequest.CONTROL_AE_MODE, this.AEMode);
    requestBuilder.set(CaptureRequest.CONTROL_AWB_LOCK, this.WhiteBalanceLock);
    requestBuilder.set(CaptureRequest.SENSOR_SENSITIVITY, this.ISO);
    requestBuilder.set(CaptureRequest.SENSOR_EXPOSURE_TIME, this.ExposureTime);
    requestBuilder.set(CaptureRequest.CONTROL_AWB_MODE, this.WhiteBalanceMode);
    requestBuilder.set(CaptureRequest.CONTROL_SCENE_MODE, this.SceneMode);
    requestBuilder.set(CaptureRequest.CONTROL_AF_MODE, this.AFMode);
    requestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, this.AFTrigger);
    requestBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE, this.ColorCorrectionMode);
    requestBuilder.set(CaptureRequest.COLOR_CORRECTION_TRANSFORM, this.ColorSpaceTransform);
    requestBuilder.set(CaptureRequest.COLOR_CORRECTION_GAINS, this.ColorCorrectionGain);
}

private void startRecording（）{
最终摄像机2控制器me=此；
试一试{
this.mediaRecorder=this.prepareMediaRecorder（）；//没什么特别的
final CaptureRequest.Builder requestBuilder=this.getCameraDevice（）.createCaptureRequest（CameraDevice.TEMPLATE\u记录）；
此.updateRequestForCapture（requestBuilder）；
ArrayList曲面=新的ArrayList（）；
添加（this.surfaceHolder.getSurface（））；
添加（this.mediaRecorder.getSurface（））；
用于（曲面目标：曲面）{
requestBuilder.addTarget（目标）；
}
this.captureRequest=requestBuilder.build（）；
this.getCameraDevice（）.createCaptureSession（曲面，新的CameraCaptureSession.StateCallback（））{
@凌驾
未配置公共void（@NonNull CameraCaptureSession会话）{
试一试{
me.setCaptureSession（会话）；
session.setRepeatingRequest（me.captureRequest，null，null）；
me.mediaRecorder.start（）；
我.\u isRecording=true；
}
捕获（例外e）{
试一试{
me.\u isRecording=false；
me.getCaptureSession（）.stopRepeating（）；
me.getCaptureSession（）.abortCaptures（）；
me.getCaptureSession（）.close（）；
}
捕捉（CameraAccessException cae）{
printStackTrace（）；
}
最后{
me.mediaRecorder.reset（）；
me.mediaRecorder.release（）；
me.mediaRecorder=null；
}
}
}
@凌驾
已配置公用void onconfig（@NonNull CameraCaptureSession会话）{
me.\u isRecording=false；
}
}，这个）；
}
捕获（CameraAccessE异常）{
me.\u isRecording=false；
}
}
public void updateRequestForCapture（CaptureRequest.Builder-requestBuilder）{
set（CaptureRequest.CONTROL\u模式，this.ControlMode）；
set（CaptureRequest.CONTROL_AE_模式，this.AEMode）；
requestBuilder.set（CaptureRequest.CONTROL\u AWB\u LOCK，this.WhiteBalanceLock）；
requestBuilder.set（CaptureRequest.SENSOR\u灵敏度，this.ISO）；
requestBuilder.set（CaptureRequest.SENSOR\u EXPOSURE\u TIME，this.ExposureTime）；
requestBuilder.set（CaptureRequest.CONTROL\u AWB\u模式，this.WhiteBalanceMode）；
set（CaptureRequest.CONTROL\u SCENE\u模式，this.SceneMode）；
set（CaptureRequest.CONTROL\u AF\u模式，this.AFMode）；
set（CaptureRequest.CONTROL\u AF\u触发器，this.AFTrigger）；
set（CaptureRequest.COLOR\u CORRECTION\u模式，this.ColorCorrectionMode）；
set（CaptureRequest.COLOR\u CORRECTION\u TRANSFORM，this.colorspace TRANSFORM）；
requestBuilder.set（CaptureRequest.COLOR\u CORRECTION\u增益，this.ColorCorrectionGain）；
}

有人能给我建议如何解决这个问题吗