1/*
2 * Copyright (C) 2014 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 ANDROID_CAMERA_CLIENT_CAMERAUTILS_H
18#define ANDROID_CAMERA_CLIENT_CAMERAUTILS_H
19
20#include <binder/IMemory.h>
21#include <camera/CameraMetadata.h>
22#include <utils/Errors.h>
23#include <utils/RefBase.h>
24
25#include <stdint.h>
26
27namespace android {
28
29/**
30 * CameraUtils contains utility methods that are shared between the native
31 * camera client, and the camera service.
32 */
33class CameraUtils {
34    public:
35        /**
36         * Calculate the ANativeWindow transform from the static camera
37         * metadata.  This is based on the sensor orientation and lens facing
38         * attributes of the camera device.
39         *
40         * Returns OK on success, or a negative error code.
41         */
42        static status_t getRotationTransform(const CameraMetadata& staticInfo,
43                /*out*/int32_t* transform);
44
45        /**
46         * Check if the image data is VideoNativeHandleMetadata, that contains a native handle.
47         */
48        static bool isNativeHandleMetadata(const sp<IMemory>& imageData);
49
50    private:
51        CameraUtils();
52};
53
54} /* namespace android */
55
56#endif /* ANDROID_CAMERA_CLIENT_CAMERAUTILS_H */
57
58