You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
140 lines
4.9 KiB
140 lines
4.9 KiB
/*
|
|
* Copyright (C) 2015 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
#ifndef _ACAMERA_METADATA_H
|
|
#define _ACAMERA_METADATA_H
|
|
|
|
#include <unordered_set>
|
|
#include <vector>
|
|
#include <memory>
|
|
|
|
#include <sys/types.h>
|
|
#include <utils/Mutex.h>
|
|
#include <utils/RefBase.h>
|
|
#include <utils/Vector.h>
|
|
|
|
#ifdef __ANDROID_VNDK__
|
|
#include <CameraMetadata.h>
|
|
using CameraMetadata = android::hardware::camera::common::V1_0::helper::CameraMetadata;
|
|
#else
|
|
#include <camera/CameraMetadata.h>
|
|
#endif
|
|
|
|
#include <camera/NdkCameraMetadata.h>
|
|
|
|
using namespace android;
|
|
|
|
/**
|
|
* ACameraMetadata is an opaque struct definition.
|
|
* It is intentionally left outside of the android namespace because it's NDK struct.
|
|
*/
|
|
struct ACameraMetadata : public RefBase {
|
|
public:
|
|
typedef enum {
|
|
ACM_CHARACTERISTICS, // Read only
|
|
ACM_REQUEST, // Read/Write
|
|
ACM_RESULT, // Read only
|
|
} ACAMERA_METADATA_TYPE;
|
|
|
|
// Constructs a ACameraMetadata that takes ownership of `buffer`.
|
|
ACameraMetadata(camera_metadata_t* buffer, ACAMERA_METADATA_TYPE type);
|
|
|
|
// Constructs a ACameraMetadata that shares its data with something else, like a Java object
|
|
ACameraMetadata(const std::shared_ptr<CameraMetadata>& cameraMetadata,
|
|
ACAMERA_METADATA_TYPE type);
|
|
|
|
// Copy constructor.
|
|
//
|
|
// Always makes a deep copy.
|
|
ACameraMetadata(const ACameraMetadata& other);
|
|
|
|
~ACameraMetadata();
|
|
|
|
camera_status_t getConstEntry(uint32_t tag, ACameraMetadata_const_entry* entry) const;
|
|
|
|
camera_status_t update(uint32_t tag, uint32_t count, const uint8_t* data);
|
|
camera_status_t update(uint32_t tag, uint32_t count, const int32_t* data);
|
|
camera_status_t update(uint32_t tag, uint32_t count, const float* data);
|
|
camera_status_t update(uint32_t tag, uint32_t count, const double* data);
|
|
camera_status_t update(uint32_t tag, uint32_t count, const int64_t* data);
|
|
camera_status_t update(uint32_t tag, uint32_t count, const ACameraMetadata_rational* data);
|
|
|
|
camera_status_t getTags(/*out*/int32_t* numTags,
|
|
/*out*/const uint32_t** tags) const;
|
|
|
|
const CameraMetadata& getInternalData() const;
|
|
bool isLogicalMultiCamera(size_t* count, const char* const** physicalCameraIds) const;
|
|
|
|
private:
|
|
|
|
// Common code called by constructors.
|
|
void init();
|
|
|
|
// This function does not check whether the capability passed to it is valid.
|
|
// The caller must make sure that it is.
|
|
bool isNdkSupportedCapability(const int32_t capability);
|
|
static inline bool isVendorTag(const uint32_t tag);
|
|
static bool isCaptureRequestTag(const uint32_t tag);
|
|
void filterUnsupportedFeatures(); // Hide features not yet supported by NDK
|
|
void filterStreamConfigurations(); // Hide input streams, translate hal format to NDK formats
|
|
void filterDurations(uint32_t tag); // translate hal format to NDK formats
|
|
void derivePhysicalCameraIds(); // Derive array of physical ids.
|
|
|
|
template<typename INTERNAL_T, typename NDK_T>
|
|
camera_status_t updateImpl(uint32_t tag, uint32_t count, const NDK_T* data) {
|
|
if (mType != ACM_REQUEST) {
|
|
ALOGE("Error: Write to metadata is only allowed for capture request!");
|
|
return ACAMERA_ERROR_INVALID_PARAMETER;
|
|
}
|
|
if (!isCaptureRequestTag(tag)) {
|
|
ALOGE("Error: tag %d is not writable!", tag);
|
|
return ACAMERA_ERROR_INVALID_PARAMETER;
|
|
}
|
|
|
|
Mutex::Autolock _l(mLock);
|
|
|
|
status_t ret = OK;
|
|
if (count == 0 && data == nullptr) {
|
|
ret = mData->erase(tag);
|
|
} else {
|
|
// Here we have to use reinterpret_cast because the NDK data type is
|
|
// exact copy of internal data type but they do not inherit from each other
|
|
ret = mData->update(tag, reinterpret_cast<const INTERNAL_T*>(data), count);
|
|
}
|
|
|
|
if (ret == OK) {
|
|
mTags.clear();
|
|
return ACAMERA_OK;
|
|
} else {
|
|
return ACAMERA_ERROR_INVALID_PARAMETER;
|
|
}
|
|
}
|
|
|
|
// Guard access of public APIs: get/update/getTags.
|
|
mutable Mutex mLock;
|
|
|
|
std::shared_ptr<CameraMetadata> mData;
|
|
|
|
mutable Vector<uint32_t> mTags; // Updated by `getTags()`, cleared by `update()`.
|
|
const ACAMERA_METADATA_TYPE mType;
|
|
|
|
static std::unordered_set<uint32_t> sSystemTags;
|
|
|
|
std::vector<const char*> mStaticPhysicalCameraIds;
|
|
std::vector<String8> mStaticPhysicalCameraIdValues;
|
|
};
|
|
|
|
#endif // _ACAMERA_METADATA_H
|