example.json

{
  "options": {
    "basicWidth": 1280,
    "basicHeight": 720,
    "frameRate": 30,
    "path": "/tmp/codeda/test.mp4"
  },
  "items": [
    {
      "layer": 1,
      "source": "/tmp/codeda/input1.mp4",
      "width": 1280,
      "height": 720,
      "innerEnd":12000,
      "startPoint": {
        "time": -5000,
        "relativeTo": 1,
        "cue": 1
      },
      "transitions":[
        {
          "duration":5000,
          "start":0,
          "items":[
            {
              "type": 0,
              "from":0,
              "to":1
            },
            {
              "type": 1,
              "from":-1,
              "to":0
            },{
              "type": 2,
              "from":1,
              "to":0
            }
          ]

        }

      ]
    },
    {
      "layer": 0,
      "innerEnd":10000,
      "width": 1280,
      "height": 720,
      "source": "/tmp/codeda/input2.mkv",
      "startPoint": {
        "time": 0
      }
    },
    {
      "layer": 2,
      "type": 2,
      "source": "/tmp/codeda/input3.png",
      "width": 220,
      "height": 164,
      "innerEnd":15000,
      "transitions":[
        {
          "duration":5000,
          "start":0,
          "items":[
            {
              "type": 1,
              "from":0,
              "to": 0.85,
              "position":1
            }
          ]
        },
        {
          "duration":5000,
          "start":5000,
          "items":[
            {
              "type": 2,
              "from":0,
              "to": 0.8,
              "position":1
            }
          ]
        },
        {
          "duration":5000,
          "start":10000,
          "items":[
            {
              "type": 2,
              "from": 0.8,
              "to": 0,
              "position":1
            },
            {
              "type": 1,
              "from": 0.85,
              "to": 0,
              "position":1
            },
            {
              "type": 0,
              "from": 1,
              "to": 0
            }
          ]
        }

      ]
    }
  ]
}