VideoSubtitleVO

{
    "videoUrl": "https://example.com/video.mp4",
    "srtContent": "1\n00:00:01,000 --> 00:00:04,000\n这是第一行字幕",
    "fontSize": 12,
    "fontName": "黑体-简",
    "primaryColor": "&HFFFFFF&",
    "outlineColor": "&H000000&",
    "outlineWidth": 1,
    "marginV": 10
}