FRtcImage

  • Unreal Blueprint

更新时间不可用

图像属性。

C++
USTRUCT(BlueprintType)
struct FRtcImage
{
	GENERATED_BODY()
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|RtcImage")
	FString url = "";
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|RtcImage")
	int x = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|RtcImage")
	int y = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|RtcImage")
	int width = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|RtcImage")
	int height = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|RtcImage")
	int zOrder = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|RtcImage")
	float alpha = 0;
	FRtcImage() {}
	FRtcImage(const agora::rtc::RtcImage& AgoraData) {
		url = UTF8_TO_TCHAR(AgoraData.url);
		x = AgoraData.x;
		y = AgoraData.y;
		width = AgoraData.width;
		height = AgoraData.height;
		zOrder = AgoraData.zOrder;
		alpha = AgoraData.alpha;
	}
	agora::rtc::RtcImage CreateAgoraData() const {
		agora::rtc::RtcImage AgoraData;

		char* URLCharPtr = new char[url.Len() + 1];
		FMemory::Memcpy(URLCharPtr, TCHAR_TO_UTF8(*url), url.Len());
		URLCharPtr[url.Len()] = '\0';
		AgoraData.url = URLCharPtr;
		AgoraData.x = x;
		AgoraData.y = y;
		AgoraData.width = width;
		AgoraData.height = height;
		AgoraData.zOrder = zOrder;
		AgoraData.alpha = alpha;
		return AgoraData;
	}
	void FreeAgoraData(agora::rtc::RtcImage& AgoraData) const {
		if (AgoraData.url) {
			delete[] AgoraData.url;
			AgoraData.url = nullptr;
		}
	}
};

详情

用于设置直播视频的水印和背景图片的属性。

属性

参数名描述
url

直播视频上图片的 HTTP/HTTPS 地址。字符长度不得超过 1024 字节。

x

图片在视频画面上的 x 坐标 (px),以输出视频画面的左上角为原点。

y

图片在视频画面上的 y 坐标 (px),以输出视频画面的左上角为原点。

width

图片在视频画面上的宽度 (px)。

height

图片在视频画面上的高度 (px)。

zOrder

水印或背景图的图层编号。使用水印数组添加单张或多张水印时,必须向 zOrder 传值,取值范围为 [1,255],否则 SDK 会报错。其余情况,zOrder 可选传值,取值范围为 [0,255],0 为默认值。0 代表图层的最下层,255 代表图层的最上层。

alpha

水印或背景图片的透明度。取值范围为 [0.0,1.0]:

  • 0.0: 完全透明。
  • 1.0:(默认)完全不透明。
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