{
  "prompt_type": "spatial.layout",
  "video_attachment_path": "/minimax-dialogue/workspace/users/jinnan/data/caption_diverse_v1/runs/full_sourcing_60k_6bucket_20260730_v2/sourcing_demo/vela_gpt56_prompt10_20260804/mp4_attachments_33mb_zero_based_final_20260806/caption_demo_002.mp4",
  "video_attachment_timestamp_mode": "zero_based_clip",
  "video_timestamp_offset_s": 1117.4,
  "video_timestamp_formula": "absolute_frame_ts = frame_ts + video_timestamp_offset_s",
  "source_video_path": "/oss/crawler-data-storage/Youtube-New-CF/video/2025-11-29/1iLyDXYr3NA.mp4",
  "source_clip_start_s": 1117.4,
  "source_clip_end_s": 1176.92
}