base_video。源视频项必须同时包含 type、video_url 和 role=base_video。{
"audio_url": {
"url": "string"
},
"image_url": {
"url": "string"
},
"role": "base_video",
"text": "string",
"type": "text",
"video_url": {
"url": "string"
}
}