{
  "mp4_subtitle_codec": "mov_text",
  "mkv_subtitle_codec": "subrip",
  "roundtrip_lines": [
    "00:00:00,000 --> 00:00:00,800",
    "青铜器",
    "00:00:01,000 --> 00:00:01,800",
    "请看纹饰。"
  ],
  "decode": [
    {
      "file": "source.mp4",
      "exit_code": 0,
      "stderr": ""
    },
    {
      "file": "subrip.mkv",
      "exit_code": 0,
      "stderr": ""
    },
    {
      "file": "subtitle.mp4",
      "exit_code": 0,
      "stderr": ""
    }
  ]
}