Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 METADATA_H_ |
| 18 | #define METADATA_H_ |
| 19 | |
Alex Ray | 6273508 | 2013-10-21 12:55:24 -0700 | [diff] [blame] | 20 | #include <stdint.h> |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 21 | #include <hardware/camera3.h> |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 22 | #include <system/camera_metadata.h> |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 23 | |
| 24 | namespace default_camera_hal { |
| 25 | // Metadata is a convenience class for dealing with libcamera_metadata |
| 26 | class Metadata { |
| 27 | public: |
| 28 | Metadata(); |
| 29 | ~Metadata(); |
Alex Ray | 6273508 | 2013-10-21 12:55:24 -0700 | [diff] [blame] | 30 | // Initialize with framework metadata |
| 31 | int init(const camera_metadata_t *metadata); |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 32 | |
Alex Ray | 6273508 | 2013-10-21 12:55:24 -0700 | [diff] [blame] | 33 | // Parse and add an entry. Allocates and copies new storage for *data. |
| 34 | int addUInt8(uint32_t tag, int count, const uint8_t *data); |
| 35 | int add1UInt8(uint32_t tag, const uint8_t data); |
| 36 | int addInt32(uint32_t tag, int count, const int32_t *data); |
| 37 | int addFloat(uint32_t tag, int count, const float *data); |
| 38 | int addInt64(uint32_t tag, int count, const int64_t *data); |
| 39 | int addDouble(uint32_t tag, int count, const double *data); |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 40 | int addRational(uint32_t tag, int count, |
Alex Ray | 6273508 | 2013-10-21 12:55:24 -0700 | [diff] [blame] | 41 | const camera_metadata_rational_t *data); |
| 42 | |
| 43 | // Get a handle to the current metadata |
| 44 | // This is not a durable handle, and may be destroyed by add*/init |
| 45 | camera_metadata_t* get(); |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 46 | |
| 47 | private: |
Alex Ray | 6273508 | 2013-10-21 12:55:24 -0700 | [diff] [blame] | 48 | // Actual internal storage |
| 49 | camera_metadata_t* mData; |
| 50 | // Destroy old metadata and replace with new |
| 51 | void replace(camera_metadata_t *m); |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 52 | // Validate the tag, type and count for a metadata entry |
| 53 | bool validate(uint32_t tag, int tag_type, int count); |
Alex Ray | 6273508 | 2013-10-21 12:55:24 -0700 | [diff] [blame] | 54 | // Add a verified tag with data |
| 55 | int add(uint32_t tag, int count, const void *tag_data); |
Alex Ray | b0be103 | 2013-05-28 15:52:47 -0700 | [diff] [blame] | 56 | }; |
| 57 | } // namespace default_camera_hal |
| 58 | |
| 59 | #endif // METADATA_H_ |