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_CONVERTER_INTERFACE_H_ 18 #define V4L2_CAMERA_HAL_METADATA_CONVERTER_INTERFACE_H_ 19 20 #include "../common.h" 21 22 namespace v4l2_camera_hal { 23 24 // A ConverterInterface converts metadata values to V4L2 values vice-versa. 25 template <typename TMetadata, typename TV4L2> 26 class ConverterInterface { 27 public: ~ConverterInterface()28 virtual ~ConverterInterface(){}; 29 30 // Convert. 31 virtual int MetadataToV4L2(TMetadata value, TV4L2* conversion) = 0; 32 virtual int V4L2ToMetadata(TV4L2 value, TMetadata* conversion) = 0; 33 }; 34 35 } // namespace v4l2_camera_hal 36 37 #endif // V4L2_CAMERA_HAL_METADATA_CONVERTER_INTERFACE_H_ 38