角色替换 – 视频生成

namifusion/character-swap/generate

用 Wan2.2-Animate 将视频中选定人物替换为参考图人物,保留原始音轨。

参数

名称类型默认约束说明
track_manifest_url *Track manifest URLtextanalyze 模型返回的 track_manifest_url
mappings *人物映射array<object>{obj_id, img_urls} 数组。obj_id 来自 analyze 输出;每个人物 1-3 张参考图 URL。
obj_id *人物 obj_idnumber
img_urls *参考图image_upload_group1–3 items
resolution分辨率select720p480p | 720p
seed随机种子number

输出字段

字段类型说明
videosarrayResult video URL(s), original audio track preserved

API

通过统一 REST API 调用本模型;在 API Keys 页获取密钥。

cURL
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/namifusion/character-swap/generate" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "input": {
    "track_manifest_url": "value",
    "mappings": [
      {
        "obj_id": 1,
        "img_urls": [
          "https://example.com/input.jpg"
        ]
      }
    ],
    "resolution": "720p"
  }
}'

# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
  -H "Authorization: Bearer YOUR_API_KEY"
Python
import time, requests

API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1) Submit
resp = requests.post(
    "https://www.namifusion.com/api/v1/marketplace/run/namifusion/character-swap/generate",
    headers=HEADERS,
    json={
        "input": {
            "track_manifest_url": "value",
            "mappings": [
                {
                    "obj_id": 1,
                    "img_urls": [
                        "https://example.com/input.jpg"
                    ]
                }
            ],
            "resolution": "720p"
        }
    },
)
resp.raise_for_status()  # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()

# 2) Poll until a terminal state (completed / failed / cancelled).
#    This model is allowed up to 7200s server-side.
deadline = time.time() + 7260
while task.get("status") not in ("completed", "failed", "cancelled"):
    if time.time() > deadline:
        raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
    time.sleep(3)
    poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
    poll.raise_for_status()
    task = poll.json()

print(task["status"], task.get("output"))
JavaScript
const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };

// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/namifusion/character-swap/generate", {
  method: "POST",
  headers: { ...HEADERS, "Content-Type": "application/json" },
  body: JSON.stringify({
    "input": {
      "track_manifest_url": "value",
      "mappings": [
        {
          "obj_id": 1,
          "img_urls": [
            "https://example.com/input.jpg"
          ]
        }
      ],
      "resolution": "720p"
    }
  }),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();

// 2) Poll until a terminal state (completed / failed / cancelled).
//    This model is allowed up to 7200s server-side.
const deadline = Date.now() + 7260 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
  if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
  await new Promise((r) => setTimeout(r, 3000));
  const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
  if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
  task = await poll.json();
}

console.log(task.status, task.output);

文档

角色替换 – 视频生成

角色替换流水线的第 2 步。用 Wan2.2-Animate 将视频中选定人物替换为参考图人物,保留原始音轨。

输入

字段类型必填说明
video_urlstring(视频 URL)与 analyze 步骤同一视频,最长 30 秒
track_manifest_urlstring由 namifusion/character-swap/analyze 返回
mappings{obj_id, img_urls} 数组obj_id 来自 analyze 输出;每个人物 1-3 张参考图 URL
resolution"480p" | "720p"默认 720p;需与 analyze 步骤一致
seednumber随机种子

输出

  • videos[0]:成品视频 URL(保留原始音轨)

典型流程

  1. 对视频调用 namifusion/character-swap/analyze
  2. 从 analyze 输出中挑选要替换的 obj_id
  3. 携带 track_manifest_url + mappings 调用 POST /run/namifusion/character-swap/generate
  4. 轮询 GET /run/tasks/{task_uuid} 直到完成

定价:720p 每 5 秒 75 积分;480p 每 5 秒 40 积分;视频最长 30 秒。