blackmagic-atem-nodered/commands/auxSource.js

Provides control of a BlackMagic ATEM

const commandList = require("./commandList.js");

module.exports = {
  object: function() { return {
    get: "AuxS",
    set: "CAuS",
    cmd: "auxSource",
    data: {},
    close() {
      this.data = {};
    },
    initializeData(data, flag, commands) {
      var command = {"payload":{"data":{}}};
      this.processData(data, flag, command, commands);
    },
    processData(data, flag, command, commands) {
      this.data[data[0]] = {
        "inputNumber": data.readUInt16BE(2),
        "videoSource": commands.inputProperty.findInput(data.readUInt16BE(2))
      }
      command.payload.data = this.data;
      command.payload.cmd = this.cmd;
      
      //return flag==commandList.flags.initializing;
      return true;
    },
    sendData(command, commands) {
      var error = null;
      var msg = {
        "direction": "node",
        "name": this.set,
        "command": {
          "payload": {
            "cmd": this.cmd,
            "data": "The data was not filled"
          }
        }
      }
  
      //If the data is null return the value
      if(command.payload.data == undefined || command.payload.data == null) {error="The data parameter was null";}
      else {
        if(command.payload.data.id == undefined || command.payload.data.id == null) {
          msg.direction = "node";
          msg.command.payload.data = this.data;
        }
        else if(command.payload.data.videoSource !== undefined && command.payload.data.videoSource !== null) {
          //Find the searcher for the video source
          videoSource = null;
          if(command.payload.data.videoSource.id == undefined || command.payload.data.videoSource.id == null) {
            if(command.payload.data.videoSource.longName == undefined || command.payload.data.videoSource.longName == null) {
              if(command.payload.data.videoSource.shortName == undefined || command.payload.data.videoSource.shortName == null) {
              }
              else {videoSource = command.payload.data.videoSource.shortName; }
            }
            else {videoSource = command.payload.data.videoSource.longName;}
          }
          else {videoSource = command.payload.data.videoSource.id;}
          videoSource = commands.inputProperty.findInput(videoSource);
  
          if(videoSource == undefined || videoSource == null){error="That input source was not found";}
          else if(command.payload.data.mask !== undefined && command.payload.data.mask !== null){
            //Set the input source
            var packet = Buffer.alloc(4).fill(0);
            packet[0] = command.payload.data.mask ? 1 : 0;
            packet[1] = command.payload.data.id;
            packet.writeInt16BE(videoSource.id, 2);
            msg.direction = "server";
            msg.command.packet = packet;
          }
          else {error="A mask parameter is required";}
        }
        else {
          //Return the current input source
           msg.direction = "node";
           msg.command.payload.data = this.data;
        }
      }
  
      if(error != null) {
        var msg = {
          "direction": "node",
          "command": {
            "payload": {
              "cmd": this.cmd,
              "data": error
            }
          }
        }
      }
      return msg;
    },
    //What todo once we are connected
    afterInit(commands) {
      //Update the video source
      for(var i in this.data) {
        this.data[i].videoSource = commands.inputProperty.findInput(this.data[i].inputNumber);
      }
  
      return {
        "cmd": this.cmd,
        "data": this.data
      }
    }    
  }}
}