# FTranscodingVideoStream (/zh-CN/api-reference/rtc/unreal-blueprint/class-transcodingvideostream)

> For AI agents: see the complete documentation index at [llms.txt](/llms.txt).

<a id="class_transcodingvideostream__prototype"></a>

```cpp
USTRUCT(BlueprintType)
struct FTranscodingVideoStream {
	GENERATED_BODY()
public:
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	EVIDEO_SOURCE_TYPE sourceType = EVIDEO_SOURCE_TYPE::VIDEO_SOURCE_CAMERA_PRIMARY;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	int64 remoteUserUid = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	FString imageUrl = "";
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	int mediaPlayerId = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	int x = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	int y = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	int width = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	int height = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	int zOrder = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	float alpha = 0;
	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Agora|TranscodingVideoStream")
	bool mirror = false;
	FTranscodingVideoStream(){}
	FTranscodingVideoStream(const agora::rtc::TranscodingVideoStream & AgoraData){
		sourceType = static_cast<EVIDEO_SOURCE_TYPE>(AgoraData.sourceType);
		remoteUserUid = AgoraData.remoteUserUid;
		imageUrl = UTF8_TO_TCHAR(AgoraData.imageUrl);
		mediaPlayerId = AgoraData.mediaPlayerId;
		x = AgoraData.x;
		y = AgoraData.y;
		width = AgoraData.width;
		height = AgoraData.height;
		zOrder = AgoraData.zOrder;
		alpha = AgoraData.alpha;
		mirror = AgoraData.mirror;
	}
	agora::rtc::TranscodingVideoStream CreateAgoraData() const{

		agora::rtc::TranscodingVideoStream AgoraData;
		AgoraData.sourceType = static_cast<agora::rtc::VIDEO_SOURCE_TYPE>(sourceType);
		AgoraData.remoteUserUid = remoteUserUid;
		SET_UABT_FSTRING_TO_CONST_CHAR___MEMALLOC(AgoraData.imageUrl,this->imageUrl)
		AgoraData.mediaPlayerId = mediaPlayerId;
		AgoraData.x = x;
		AgoraData.y = y;
		AgoraData.width = width;
		AgoraData.height = height;
		AgoraData.zOrder = zOrder;
		AgoraData.alpha = alpha;
		AgoraData.mirror = mirror;
		return AgoraData;
	}
	void FreeAgoraData(agora::rtc::TranscodingVideoStream & AgoraData) const{
		SET_UABT_FSTRING_TO_CONST_CHAR___MEMFREE(AgoraData.imageUrl)
	}
};
```

<a id="class_transcodingvideostream__parameters"></a>

## 属性 [#属性]

<ParameterList>
<a id="sourcetype"></a>
<Parameter name="sourceType">

参与本地合图的视频源类型。详见 [EUABT_VIDEO_SOURCE_TYPE](/zh-CN/api-reference/rtc/unreal-blueprint/enum-videosourcetype)。

</Parameter>
<a id="remoteuseruid"></a>
<Parameter name="remoteUserUid">

远端用户 ID。

:::caution
注意： 请仅在参与本地合图的视频源类型为 VIDEO_SOURCE_REMOTE 时，使用该参数。
:::

</Parameter>
<a id="imageurl"></a>
<Parameter name="imageUrl">

本地图片的路径。

:::caution
注意： 请仅在参与本地合图的视频源类型为图片时，使用该参数。
:::

示例路径：

- Windows: `C:\\Users\\{username}\\Pictures\\image.png`

</Parameter>
<a id="mediaplayerid"></a>
<Parameter name="mediaPlayerId">

（可选）媒体播放器 ID。当你将 sourceType 设置为 VIDEO_SOURCE_MEDIA_PLAYER 时，需要设置该参数。

</Parameter>
<a id="x"></a>
<Parameter name="x">

参与本地合图的视频的左上角相对于合图画布左上角（原点）的横向位移。

</Parameter>
<a id="y"></a>
<Parameter name="y">

参与本地合图的视频的左上角相对于合图画布左上角（原点）的纵向位移。

</Parameter>
<a id="width"></a>
<Parameter name="width">

参与本地合图的视频的宽度 (px)。

</Parameter>
<a id="height"></a>
<Parameter name="height">

参与本地合图的视频的高度 (px)。

</Parameter>
<a id="zorder"></a>
<Parameter name="zOrder">

参与本地合图的视频所属的图层的编号。取值范围为 [0,100]。

- 0:（默认值）图层在最下层。
- 100: 图层在最上层。

</Parameter>
<a id="alpha"></a>
<Parameter name="alpha">

参与本地合图的视频的透明度。取值范围为 [0.0,1.0]。 0.0 表示透明度为完全透明，1.0 表示透明度为完全不透明。

</Parameter>
<a id="mirror"></a>
<Parameter name="mirror">

是否对参与本地合图的的视频进行镜像：

- `true`: 将参与本地合图的视频进行镜像。
- `false`: （默认值）不将参与本地合图的视频进行镜像。

:::caution
注意： 该参数仅对视频源类型为摄像头的视频生效。
:::

</Parameter>
</ParameterList>