ARCoreCameraDevice Class

Description

ARCoreCameraDevice实现了一个基于ARCore的camera设备，输出 InputFrame （包含图像、摄像机参数、时间戳、6DOF位置信息和跟踪状态）。

使用时需要先使用java.lang.System.loadLibrary加载libarcore_sdk_c.so。

创建之后，可以调用start/stop来开始和停止采集视频流数据。

当不再需要该设备时，可以调用close对其进行关闭。close之后不应继续使用。

ARCoreCameraDevice通过inputFrameSource输出 InputFrame ，应将inputFrameSource连接到 InputFrameSink 上进行使用。参考 概览 _ 。

bufferCapacity表示 InputFrame 缓冲的容量，如果有超过此数量的 InputFrame 从该设备中输出并且没有被释放，该设备将不再输出新的 InputFrame ，直到之前的 InputFrame 被释放。这可能造成画面卡住等问题。参考 概览 _ 。

注意：当前ARCore(v1.13.0)的实现在创建和销毁session时存在内存泄漏，多次创建和销毁会导致内存占用不断增长且销毁后也不释放。

Constructor

C

void easyar_ARCoreCameraDevice__ctor(easyar_ARCoreCameraDevice * * Return)

C++17

ARCoreCameraDevice()

C++03(Deprecated)

ARCoreCameraDevice()

Java

public ARCoreCameraDevice()

Kotlin

constructor()

Objective-C

+ (easyar_ARCoreCameraDevice *) create

Swift

public convenience init()

C#

public ARCoreCameraDevice()

isAvailable

检查是否可用。只在Android系统上并安装了ARCore时返回true。

在没有加载libarcore_sdk_c.so时调用会返回false。

注意：如果设备不支持ARCore，但却通过旁加载方式安装了ARCore的apk，则该函数会返回true，但ARCore不能正常使用。

C

bool easyar_ARCoreCameraDevice_isAvailable(void)

C++17

static bool isAvailable()

C++03(Deprecated)

static bool isAvailable()

Java

public static boolean isAvailable()

Kotlin

companion object fun isAvailable(): Boolean

Objective-C

+ (bool)isAvailable

Swift

public static func isAvailable() -> Bool

C#

public static bool isAvailable()

bufferCapacity

InputFrame 缓冲的容量，默认值为8。

C

int easyar_ARCoreCameraDevice_bufferCapacity(const easyar_ARCoreCameraDevice * This)

C++17

int bufferCapacity()

C++03(Deprecated)

int bufferCapacity()

Java

public int bufferCapacity()

Kotlin

fun bufferCapacity(): Int

Objective-C

- (int)bufferCapacity

Swift

public func bufferCapacity() -> Int32

C#

public virtual int bufferCapacity()

setBufferCapacity

设置 InputFrame 缓冲的容量。

C

void easyar_ARCoreCameraDevice_setBufferCapacity(easyar_ARCoreCameraDevice * This, int capacity)

C++17

void setBufferCapacity(int capacity)

C++03(Deprecated)

void setBufferCapacity(int capacity)

Java

public void setBufferCapacity(int capacity)

Kotlin

fun setBufferCapacity(capacity: Int): Unit

Objective-C

- (void)setBufferCapacity:(int)capacity

Swift

public func setBufferCapacity(_ capacity: Int32) -> Void

C#

public virtual void setBufferCapacity(int capacity)

inputFrameSource

InputFrame 输出端口。

C

void easyar_ARCoreCameraDevice_inputFrameSource(easyar_ARCoreCameraDevice * This, easyar_InputFrameSource * * Return)

C++17

std::shared_ptr<InputFrameSource> inputFrameSource()

C++03(Deprecated)

void inputFrameSource(InputFrameSource * * Return)

Java

public @Nonnull InputFrameSource inputFrameSource()

Kotlin

fun inputFrameSource(): InputFrameSource

Objective-C

- (easyar_InputFrameSource *)inputFrameSource

Swift

public func inputFrameSource() -> InputFrameSource

C#

public virtual InputFrameSource inputFrameSource()

setFocusMode

设置对焦模式为focusMode。在start之前调用。

C

void easyar_ARCoreCameraDevice_setFocusMode(easyar_ARCoreCameraDevice * This, easyar_ARCoreCameraDeviceFocusMode focusMode)

C++17

void setFocusMode(ARCoreCameraDeviceFocusMode focusMode)

C++03(Deprecated)

void setFocusMode(ARCoreCameraDeviceFocusMode focusMode)

Java

public void setFocusMode(int focusMode)

Kotlin

fun setFocusMode(focusMode: Int): Unit

Objective-C

- (void)setFocusMode:(easyar_ARCoreCameraDeviceFocusMode)focusMode

Swift

public func setFocusMode(_ focusMode: ARCoreCameraDeviceFocusMode) -> Void

C#

public virtual void setFocusMode(ARCoreCameraDeviceFocusMode focusMode)

start

开始采集视频流数据。

C

bool easyar_ARCoreCameraDevice_start(easyar_ARCoreCameraDevice * This)

C++17

bool start()

C++03(Deprecated)

bool start()

Java

public boolean start()

Kotlin

fun start(): Boolean

Objective-C

- (bool)start

Swift

public func start() -> Bool

C#

public virtual bool start()

stop

停止采集视频流数据。

C

void easyar_ARCoreCameraDevice_stop(easyar_ARCoreCameraDevice * This)

C++17

void stop()

C++03(Deprecated)

void stop()

Java

public void stop()

Kotlin

fun stop(): Unit

Objective-C

- (void)stop

Swift

public func stop() -> Void

C#

public virtual void stop()

close

关闭。close之后不应继续使用。

C

void easyar_ARCoreCameraDevice_close(easyar_ARCoreCameraDevice * This)

C++17

void close()

C++03(Deprecated)

void close()

Java

public void close()

Kotlin

fun close(): Unit

Objective-C

- (void)close

Swift

public func close() -> Void

C#

public virtual void close()