{
  "all_video_streams": [
    {
      "index": 0,
      "codec": "h264",
      "attached_pic": 0
    },
    {
      "index": 1,
      "codec": "mjpeg",
      "attached_pic": 1
    }
  ],
  "main_video_indices": [
    0
  ],
  "decode": [
    {
      "file": "source.mp4",
      "exit_code": 0,
      "stderr": ""
    },
    {
      "file": "covered.mp4",
      "exit_code": 0,
      "stderr": ""
    }
  ]
}