RtcImage

Image properties.

class RtcImage {
  const RtcImage(
      {this.url,
      this.x,
      this.y,
      this.width,
      this.height,
      this.zOrder,
      this.alpha});

  @JsonKey(name: 'url')
  final String? url;
  @JsonKey(name: 'x')
  final int? x;
  @JsonKey(name: 'y')
  final int? y;
  @JsonKey(name: 'width')
  final int? width;
  @JsonKey(name: 'height')
  final int? height;
  @JsonKey(name: 'zOrder')
  final int? zOrder;
  @JsonKey(name: 'alpha')
  final double? alpha;
  factory RtcImage.fromJson(Map<String, dynamic> json) =>
      _$RtcImageFromJson(json);
  Map<String, dynamic> toJson() => _$RtcImageToJson(this);
}

This class sets the properties of the watermark and background images in the live video.

Attributes

url
The HTTP/HTTPS URL address of the image in the live video. The maximum length of this parameter is 1024 bytes.
x
The x-coordinate (px) of the image on the video frame (taking the upper left corner of the video frame as the origin).
y
The y-coordinate (px) of the image on the video frame (taking the upper left corner of the video frame as the origin).
width
The width (px) of the image on the video frame.
height
The height (px) of the image on the video frame.
zOrder
The layer index of the watermark or background image. When you use the watermark array to add a watermark or multiple watermarks, you must pass a value to zOrder in the range [1,255]; otherwise, the SDK reports an error. In other cases, zOrder can optionally be passed in the range [0,255], with 0 being the default value. 0 means the bottom layer and 255 means the top layer.
alpha
The transparency of the watermark or background image. The range of the value is [0.0,1.0]:
  • 0.0: Completely transparent.
  • 1.0: (Default) Opaque.