OutputFrameBuffer Class

Description

输出帧缓存。

有一个输出帧输入端口和输出帧获取函数，用于将输出帧的获取方式从异步转化为同步轮询，适合逐帧渲染。

OutputFrameBuffer占用1个camera的buffer。应使用camera的setBufferCapacity设置不少于所有组件占用的camera的buffer数量。参考 概览 _ 。

本类的所有成员都是线程安全的。

input

输入端口。

C: void easyar_OutputFrameBuffer_input(easyar_OutputFrameBuffer * This, easyar_OutputFrameSink * * Return)

C++17: std::shared_ptr<OutputFrameSink> input()

Traditional C++: void input(OutputFrameSink * * Return)

Java: public @Nonnull OutputFrameSink input()

Kotlin: fun input(): OutputFrameSink

Objective-C: - (easyar_OutputFrameSink *)input

Swift: public func input() -> OutputFrameSink

C#: public virtual OutputFrameSink input()

bufferRequirement

当前组件占用camera buffer的数量。

C: int easyar_OutputFrameBuffer_bufferRequirement(easyar_OutputFrameBuffer * This)

C++17: int bufferRequirement()

Traditional C++: int bufferRequirement()

Java: public int bufferRequirement()

Kotlin: fun bufferRequirement(): Int

Objective-C: - (int)bufferRequirement

Swift: public func bufferRequirement() -> Int32

C#: public virtual int bufferRequirement()

signalOutput

到达信号输出端口。可用于连接 InputFrameThrottler.signalInput 。

C: void easyar_OutputFrameBuffer_signalOutput(easyar_OutputFrameBuffer * This, easyar_SignalSource * * Return)

C++17: std::shared_ptr<SignalSource> signalOutput()

Traditional C++: void signalOutput(SignalSource * * Return)

Java: public @Nonnull SignalSource signalOutput()

Kotlin: fun signalOutput(): SignalSource

Objective-C: - (easyar_SignalSource *)signalOutput

Swift: public func signalOutput() -> SignalSource

C#: public virtual SignalSource signalOutput()

peek

获取最新的 OutputFrame 。

C: void easyar_OutputFrameBuffer_peek(easyar_OutputFrameBuffer * This, easyar_OptionalOfOutputFrame * Return)

C++17: std::optional<std::shared_ptr<OutputFrame>> peek()

Traditional C++: void peek(OutputFrame * * Return)

Java: public @Nullable OutputFrame peek()

Kotlin: fun peek(): OutputFrame?

Objective-C: - (easyar_OutputFrame *)peek

Swift: public func peek() -> OutputFrame?

C#: public virtual Optional<OutputFrame> peek()

create

创建。

C: void easyar_OutputFrameBuffer_create(easyar_OutputFrameBuffer * * Return)

C++17: static std::shared_ptr<OutputFrameBuffer> create()

Traditional C++: static void create(OutputFrameBuffer * * Return)

Java: public static @Nonnull OutputFrameBuffer create()

Kotlin: companion object fun create(): OutputFrameBuffer

Objective-C: + (easyar_OutputFrameBuffer *)create

Swift: public static func create() -> OutputFrameBuffer

C#: public static OutputFrameBuffer create()

pause

(since 3.1.0)

暂停输出 OutputFrame 。执行之后， OutputFrameBuffer.peek 的结果均为空。 OutputFrameBuffer.signalOutput 不受影响。

C: void easyar_OutputFrameBuffer_pause(easyar_OutputFrameBuffer * This)

C++17: void pause()

Traditional C++: void pause()

Java: public void pause()

Kotlin: fun pause(): Unit

Objective-C: - (void)pause

Swift: public func pause() -> Void

C#: public virtual void pause()

resume

(since 3.1.0)

继续输出 OutputFrame 。

C: void easyar_OutputFrameBuffer_resume(easyar_OutputFrameBuffer * This)

C++17: void resume()

Traditional C++: void resume()

Java: public void resume()

Kotlin: fun resume(): Unit

Objective-C: - (void)resume

Swift: public func resume() -> Void

C#: public virtual void resume()