Wan 影片生成（阿里雲通義萬相）

0.14（人民幣計價單位） × 7（固定匯率） = 0.98

0.98 ÷ 1.2 ≈ 0.816

import json, time, urllib.request

BASE = "https://api.apiyi.com"
KEY  = "sk-your-api-key"   # 你的 API易 Key

def post(path, body):
    h = {"Authorization": f"Bearer {KEY}", "Content-Type": "application/json",
         "X-DashScope-Async": "enable"}
    req = urllib.request.Request(BASE + path, data=json.dumps(body).encode(), headers=h, method="POST")
    return json.loads(urllib.request.urlopen(req).read())

def get(path):
    req = urllib.request.Request(BASE + path, headers={"Authorization": f"Bearer {KEY}"})
    return json.loads(urllib.request.urlopen(req).read())

# 1. 建立任務（切換玩法只改 model 和 media）
r = post("/wan/api/v1/services/aigc/video-generation/video-synthesis", {
    "model": "wan2.7-t2v",
    "input": {"prompt": "黃昏海邊的燈塔，鏡頭緩慢推進，海浪輕拍礁石，海鳥叫聲"},
    "parameters": {"resolution": "720P", "duration": 5, "prompt_extend": True, "watermark": True}
})
task_id = r["output"]["task_id"]
print("task_id:", task_id)

# 2. 輪詢（5–10 秒一次）
while True:
    info = get(f"/v1/tasks/{task_id}")
    status = info["status"]
    print("status:", status, "progress:", info.get("progress"))
    if status == "completed":
        url = info["result_url"]
        break
    if status == "failed":
        raise RuntimeError(info.get("error") or info.get("fail_reason"))
    time.sleep(10)

# 3. 下載（不要帶 Authorization！result_url 是 OSS 簽名直鏈）
urllib.request.urlretrieve(url, "out.mp4")
print("saved out.mp4")