MiniMax-H3 视频生成 API

curl -X POST "https://api.looprouter.com/v2/video_generation" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $LOOPROUTER_API_KEY" \
  -d '{
    "model": "MiniMax-H3",
    "content": [
      { "type": "text", "text": "一个男孩在海边打篮球" }
    ],
    "resolution": "2K",
    "duration": 5,
    "ratio": "16:9"
  }'

# 返回：{"task_id": "424010985738629"}

import time
import requests

BASE = "https://api.looprouter.com"
HEADERS = {"Authorization": "Bearer sk-你的APIKey"}

# 1. 创建任务
resp = requests.post(
    f"{BASE}/v2/video_generation",
    headers=HEADERS,
    json={
        "model": "MiniMax-H3",
        "content": [
            {"type": "text", "text": "一个男孩在海边打篮球"}
        ],
        "resolution": "2K",
        "duration": 5,
        "ratio": "16:9",
    },
)
resp.raise_for_status()
task_id = resp.json()["task_id"]
print("任务已创建:", task_id)

# 2. 轮询任务状态（建议 10 秒一次）
while True:
    task = requests.get(
        f"{BASE}/v2/query/video_generation/{task_id}",
        headers=HEADERS,
    ).json()["task"]
    status = task["status"]
    print("当前状态:", status)
    if status in ("succeeded", "failed", "cancelled"):
        break
    time.sleep(10)

# 3. 下载成片（下载时不要携带 Authorization 头）
if status == "succeeded":
    video_url = task["content"]["url"]
    with requests.get(video_url, stream=True) as r:
        r.raise_for_status()
        with open("output.mp4", "wb") as f:
            for chunk in r.iter_content(chunk_size=1 << 20):
                f.write(chunk)
    print("已保存 output.mp4")
else:
    print("任务未成功:", task.get("error"))

# 首帧图生视频：text + 1 张 first_frame 图（ratio 恒按 adaptive）
i2v_body = {
    "model": "MiniMax-H3",
    "content": [
        {"type": "text", "text": "镜头缓缓推进，人物转身微笑"},
        {"type": "image_url", "image_url": {"url": "https://example.com/first.jpg"}, "role": "first_frame"},
    ],
    "resolution": "2K",
    "duration": 5,
    "ratio": "adaptive",
}

# 多模态参考：text + 参考视频 + 参考音频（不能与 first_frame/last_frame 混用）
r2v_body = {
    "model": "MiniMax-H3",
    "content": [
        {"type": "text", "text": "参考该片段的运镜与配乐节奏，生成新的城市夜景"},
        {"type": "video_url", "video_url": {"url": "https://example.com/ref.mp4"}, "role": "reference_video"},
        {"type": "audio_url", "audio_url": {"url": "https://example.com/voice.mp3"}, "role": "reference_audio"},
    ],
    "resolution": "2K",
    "duration": 6,
    "ratio": "adaptive",
}

curl "https://api.looprouter.com/v2/query/video_generation/424010985738629" \
  -H "Authorization: Bearer $LOOPROUTER_API_KEY"