@100mslive/hms-video-store/src/interfaces/simulcast-layers.ts

@100mslive Core SDK which abstracts the complexities of webRTC while providing a reactive store for data management with a unidirectional data flow

export enum HMSSimulcastLayer {
  NONE = 'none',
  LOW = 'low',
  MEDIUM = 'medium',
  HIGH = 'high',
}

export interface SimulcastLayer {
  rid: string;
  scaleResolutionDownBy: number;
  maxBitrate: number;
  maxFramerate: number;
}

export interface SimulcastResolution {
  width: number;
  height: number;
}

export interface SimulcastLayers {
  layers?: SimulcastLayer[];
}

export type HMSPreferredSimulcastLayer = Exclude<HMSSimulcastLayer, HMSSimulcastLayer.NONE>;
export interface HMSSimulcastLayerDefinition {
  layer: HMSPreferredSimulcastLayer;
  resolution: SimulcastResolution;
}

export type RID = 'f' | 'h' | 'q';

export const simulcastMapping = {
  f: HMSSimulcastLayer.HIGH,
  h: HMSSimulcastLayer.MEDIUM,
  q: HMSSimulcastLayer.LOW,
};