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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef V4L2_CAMERA_HAL_METADATA_IGNORED_CONTROL_DELEGATE_H_
#define V4L2_CAMERA_HAL_METADATA_IGNORED_CONTROL_DELEGATE_H_
#include "control_delegate_interface.h"
namespace v4l2_camera_hal {
// An IgnoredControlDelegate, as the name implies,
// has a fixed value and ignores all requests to set it.
template <typename T>
class IgnoredControlDelegate : public ControlDelegateInterface<T> {
public:
IgnoredControlDelegate(T value) : value_(value){};
int GetValue(T* value) override {
*value = value_;
return 0;
};
int SetValue(const T& value) override { return 0; };
private:
const T value_;
};
} // namespace v4l2_camera_hal
#endif // V4L2_CAMERA_HAL_METADATA_IGNORED_CONTROL_DELEGATE_H_
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