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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef V4L2_CAMERA_HAL_METADATA_ENUM_CONVERTER_H_
     18 #define V4L2_CAMERA_HAL_METADATA_ENUM_CONVERTER_H_
     19 
     20 #include <map>
     21 
     22 #include "../common.h"
     23 #include "converter_interface.h"
     24 
     25 namespace v4l2_camera_hal {
     26 
     27 // An EnumConverter converts between enum values.
     28 class EnumConverter : public ConverterInterface<uint8_t, int32_t> {
     29  public:
     30   EnumConverter(const std::multimap<int32_t, uint8_t>& v4l2_to_metadata);
     31 
     32   virtual int MetadataToV4L2(uint8_t value, int32_t* conversion) override;
     33   virtual int V4L2ToMetadata(int32_t value, uint8_t* conversion) override;
     34 
     35  private:
     36   const std::multimap<int32_t, uint8_t> v4l2_to_metadata_;
     37 
     38   DISALLOW_COPY_AND_ASSIGN(EnumConverter);
     39 };
     40 
     41 }  // namespace v4l2_camera_hal
     42 
     43 #endif  // V4L2_CAMERA_HAL_METADATA_ENUM_CONVERTER_H_
     44