VideoComposingRequest(VideoComposingRequest)

Video composing task request.

Uses clip mode: caller provides clips_data.json OSS path
(output from generate_clip_data step).

{
    "callback_data": "custom-opaque-data",
    "clip_template": "默认模板",
    "clips_data_links_text": "https://oss.example.com/clips/20240101/clips_data.json",
    "task_count": 1
}