多帧生视频工具

API 端点

POST https://jimeng.jianying.com/mweb/v1/aigc_draft/generate

Python 示例

import requests import hashlib import time import uuid import json

def generate_sign(uri_path): device_time = int(time.time()) sign_str = f"9e2c|{uri_path[-7:]}|7|5.8.0|{device_time}||11ac" sign = hashlib.md5(sign_str.encode()).hexdigest() return sign, device_time

def multi_frame_to_video(sessionid, image_uri_list, prompt_list=None, duration_list=None, ratio="16:9"): uri = "/mweb/v1/aigc_draft/generate" sign, device_time = generate_sign(uri)

RATIO_VALUES = {"16:9": 1, "9:16": 6, "1:1": 8, "4:3": 3, "3:4": 4}

component_id = str(uuid.uuid4())
image_ratio = RATIO_VALUES.get(ratio, 1)

n = len(image_uri_list)
if prompt_list is None:
    prompt_list = [""] * (n - 1)
if duration_list is None:
    duration_list = [3000] * n

frame_list = []
for i, uri in enumerate(image_uri_list):
    frame_list.append({
        "type": "image",
        "id": str(uuid.uuid4()),
        "source_from": "upload",
        "platform_type": 1,
        "image_uri": uri,
        "uri": uri,
        "duration": duration_list[i] if i < len(duration_list) else 3000,
        "prompt": prompt_list[i] if i < len(prompt_list) else ""
    })

draft_content = {
    "type": "draft",
    "id": str(uuid.uuid4()),
    "min_version": "3.3.8",
    "is_from_tsn": True,
    "version": "3.3.8",
    "main_component_id": component_id,
    "component_list": [{
        "type": "video_base_component",
        "id": component_id,
        "min_version": "3.3.8",
        "metadata": {
            "type": "",
            "id": str(uuid.uuid4()),
            "created_platform": 3,
            "created_time_in_ms": int(time.time() * 1000)
        },
        "generate_type": "multi_frame_to_video",
        "aigc_mode": "workbench",
        "abilities": {
            "type": "",
            "id": str(uuid.uuid4()),
            "multi_frame_to_video": {
                "type": "",
                "id": str(uuid.uuid4()),
                "core_param": {
                    "type": "",
                    "id": str(uuid.uuid4()),
                    "video_ratio": image_ratio,
                    "resolution": "1080p"
                },
                "frame_list": frame_list,
                "history_option": {"type": "", "id": str(uuid.uuid4())}
            }
        }
    }]
}

headers = {
    "Content-Type": "application/json",
    "Appid": "513695",
    "Appvr": "5.8.0",
    "Pf": "7",
    "Origin": "https://jimeng.jianying.com",
    "Referer": "https://jimeng.jianying.com",
    "Cookie": f"sessionid={sessionid}",
    "Device-Time": str(device_time),
    "Sign": sign,
    "Sign-Ver": "1"
}

data = {
    "extend": {},
    "submit_id": str(uuid.uuid4()),
    "draft_content": json.dumps(draft_content),
    "http_common_info": {"aid": 513695}
}

resp = requests.post(
    f"https://jimeng.jianying.com{uri}",
    params={"aid": 513695, "device_platform": "web", "region": "CN", "da_version": "3.3.8"},
    headers=headers,
    json=data
)
return resp.json()

参数说明

字段 类型 必填 说明

image_uri_list array 是 图片 URI 列表

prompt_list array 否 每段过渡描述 (n-1 个)

duration_list array 否 每段时长毫秒列表

ratio string 否 视频比例，默认 16:9

适用场景

• 绘本/分镜转视频

• 多场景连续串联

• 展现完整演变过程

对比 start_end_to_video

功能 multi_frame_to_video start_end_to_video

图片数 多张 2张

适用 多帧连续 精确控制首尾

灵活性 更完整 更可控

使用流程

• 上传所有图片获取 image_uri 列表

• 调用多帧生视频 API

• 轮询查询结果

• 下载视频文件