{
  "subtitle_flags": {
    "flags.mkv": [
      {
        "index": 1,
        "default": 1,
        "forced": 0
      },
      {
        "index": 2,
        "default": 0,
        "forced": 1
      }
    ],
    "changed.mkv": [
      {
        "index": 1,
        "default": 0,
        "forced": 0
      },
      {
        "index": 2,
        "default": 1,
        "forced": 1
      }
    ]
  },
  "player_selection": "未测；标志不是强制播放命令"
}