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_H_
18 #define V4L2_CAMERA_HAL_METADATA_H_
19 
20 #include <android-base/macros.h>
21 #include <camera/CameraMetadata.h>
22 
23 #include "metadata_common.h"
24 
25 namespace v4l2_camera_hal {
26 class Metadata {
27  public:
28   Metadata(PartialMetadataSet components);
29   virtual ~Metadata();
30 
31   int FillStaticMetadata(android::CameraMetadata* metadata);
32   bool IsValidRequest(const android::CameraMetadata& metadata);
33   int GetRequestTemplate(int template_type,
34                          android::CameraMetadata* template_metadata);
35   int SetRequestSettings(const android::CameraMetadata& metadata);
36   int FillResultMetadata(android::CameraMetadata* metadata);
37 
38  private:
39   // The overall metadata is broken down into several distinct pieces.
40   // Note: it is undefined behavior if multiple components share tags.
41   PartialMetadataSet components_;
42 
43   DISALLOW_COPY_AND_ASSIGN(Metadata);
44 };
45 
46 }  // namespace v4l2_camera_hal
47 
48 #endif  // V4L2_CAMERA_HAL_V4L2_METADATA_H_
49