Wan2.7 - video editing API reference

import base64
import mimetypes
from http import HTTPStatus
from dashscope import VideoSynthesis
import dashscope
import os

# The following URL is for the Singapore region. When calling, replace {WorkspaceId} with your actual workspace ID. URLs vary by region.
dashscope.base_http_api_url = 'https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1'

# If the DASHSCOPE_API_KEY environment variable is not set, provide your Model Studio API key here: api_key="sk-xxx"
# API keys are region-specific. To get an API key, see https://www.alibabacloud.com/help/en/model-studio/get-api-key
api_key = os.getenv("DASHSCOPE_API_KEY")

# The format is data:{MIME_type};base64,{base64_data}
def encode_file(file_path):
    mime_type, _ = mimetypes.guess_type(file_path)
    if not mime_type or not mime_type.startswith("image/"):
        raise ValueError("Unsupported or unrecognized image format.")
    with open(file_path, "rb") as image_file:
        encoded_string = base64.b64encode(image_file.read()).decode('utf-8')
    return f"data:{mime_type};base64,{encoded_string}"

# The reference_image_url parameter supports the following three input methods.

# Method 1: Use a public URL of an image.
reference_image_url = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20260402/fwjpqf/wan2.7-videoedit-change-clothes.png"

# Method 2: Use a local file (absolute and relative paths are supported).
# Format: file:// + file path
# Example (absolute path):
# reference_image_url = "file://" + "/path/to/image.png"     # Linux/macOS
# reference_image_url = "file://" + "C:/path/to/image.png"    # Windows
# Example (relative path):
# reference_image_url = "file://" + "./image.png"             # Relative to the path of the current script.

# Method 3: A Base64-encoded string.
# reference_image_url = encode_file("/path/to/image.png")

def sample_async_call_videoedit():
    # Call the asynchronous API, which returns task information.
    # You can then check the task status using the returned task ID.
    rsp = VideoSynthesis.async_call(
        api_key=api_key,
        model='wan2.7-videoedit',
        prompt='Replace the clothes of the girl in the video with the clothes from the image.',
        media=[
            {
                "type": "video",
                "url": "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20260403/nlspwm/T2VA_22.mp4"
            },
            {
                "type": "reference_image",
                "url": reference_image_url
            }
        ],
        resolution='720P',
        prompt_extend=True,
        watermark=True)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print("task_id: %s" % rsp.output.task_id)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))

    # Get the task information, which includes the task status.
    status = VideoSynthesis.fetch(task=rsp, api_key=api_key)
    if status.status_code == HTTPStatus.OK:
        print(status.output.task_status)  # Check the task status.
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (status.status_code, status.code, status.message))

    # Wait for the task to complete. This method polls at intervals until the task is finished.
    rsp = VideoSynthesis.wait(task=rsp, api_key=api_key)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print(rsp.output.video_url)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (rsp.status_code, rsp.code, rsp.message))

if __name__ == '__main__':
    sample_async_call_videoedit()

// Copyright (c) Alibaba, Inc. and its affiliates.

import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesis;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisParam;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisResult;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisListResult;
import com.alibaba.dashscope.exception.ApiException;
import com.alibaba.dashscope.exception.InputRequiredException;
import com.alibaba.dashscope.exception.NoApiKeyException;
import com.alibaba.dashscope.task.AsyncTaskListParam;
import com.alibaba.dashscope.utils.JsonUtils;
import com.alibaba.dashscope.utils.Constants;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Base64;

public class VideoEdit {

    static {
        // The following URL is for the Singapore region. When calling, replace {WorkspaceId} with your actual workspace ID. URLs vary by region.
        Constants.baseHttpApiUrl = "https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/api/v1";
    }

    // If the DASHSCOPE_API_KEY environment variable is not set, provide your Model Studio API key here: apiKey="sk-xxx"
    // API keys are region-specific. To get an API key, see https://www.alibabacloud.com/help/en/model-studio/get-api-key
    public static String apiKey = System.getenv("DASHSCOPE_API_KEY");

    // The referenceImageUrl parameter supports the following three input methods.

    // Method 1: Use a public URL of an image.
    static String referenceImageUrl = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20260402/fwjpqf/wan2.7-videoedit-change-clothes.png";

    // Method 2: Use a local file (absolute and relative paths are supported).
    // Format: file:// + file path
    // Example (absolute path):
    // static String referenceImageUrl = "file://" + "/path/to/image.png";     // Linux/macOS
    // static String referenceImageUrl = "file://" + "C:/path/to/image.png";   // Windows
    // Example (relative path):
    // static String referenceImageUrl = "file://" + "./image.png";             // Relative to the path of the current executable.

    // Method 3: Use Base64 encoding.
    // static String referenceImageUrl = encodeFile("/path/to/image.png");

    // The format is data:{MIME_type};base64,{base64_data}
    public static String encodeFile(String filePath) {
        Path path = Paths.get(filePath);
        if (!Files.exists(path)) {
            throw new IllegalArgumentException("File does not exist: " + filePath);
        }
        String mimeType = null;
        try {
            mimeType = Files.probeContentType(path);
        } catch (IOException e) {
            throw new IllegalArgumentException("Cannot detect file type: " + filePath);
        }
        if (mimeType == null || !mimeType.startsWith("image/")) {
            throw new IllegalArgumentException("Unsupported or unrecognized image format.");
        }
        byte[] fileBytes = null;
        try {
            fileBytes = Files.readAllBytes(path);
        } catch (IOException e) {
            throw new IllegalArgumentException("Cannot read file content: " + filePath);
        }
        String encodedString = Base64.getEncoder().encodeToString(fileBytes);
        return "data:" + mimeType + ";base64," + encodedString;
    }

    public static void videoEdit() throws ApiException, NoApiKeyException, InputRequiredException {
        VideoSynthesis vs = new VideoSynthesis();
        List<VideoSynthesisParam.Media> media = new ArrayList<VideoSynthesisParam.Media>(){{
            add(VideoSynthesisParam.Media.builder()
                    .url("https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20260403/nlspwm/T2VA_22.mp4")
                    .type("video")
                    .build());
            add(VideoSynthesisParam.Media.builder()
                    .url(referenceImageUrl)
                    .type("reference_image")
                    .build());
        }};
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("resolution", "720P");
        parameters.put("prompt_extend", true);
        parameters.put("watermark", true);

        VideoSynthesisParam param =
                VideoSynthesisParam.builder()
                        .apiKey(apiKey)
                        .model("wan2.7-videoedit")
                        .prompt("Replace the clothes of the girl in the video with the clothes from the image.")
                        .media(media)
                        .parameters(parameters)
                        .build();

        // Make an asynchronous call.
        VideoSynthesisResult task = vs.asyncCall(param);
        System.out.println(JsonUtils.toJson(task));
        System.out.println("Please wait...");

        // Wait for the task to complete and retrieve the final result.
        VideoSynthesisResult result = vs.wait(task, apiKey);
        System.out.println(JsonUtils.toJson(result));
    }

    // Retrieve the task list.
    public static void listTask() throws ApiException, NoApiKeyException {
        VideoSynthesis is = new VideoSynthesis();
        AsyncTaskListParam param = AsyncTaskListParam.builder().build();
        param.setApiKey(apiKey);
        VideoSynthesisListResult result = is.list(param);
        System.out.println(result);
    }

    // Retrieve the result of a single task.
    public static void fetchTask(String taskId) throws ApiException, NoApiKeyException {
        VideoSynthesis is = new VideoSynthesis();
        // The apiKey can be null if the DASHSCOPE_API_KEY environment variable is set.
        VideoSynthesisResult result = is.fetch(taskId, apiKey);
        System.out.println(result.getOutput());
        System.out.println(result.getUsage());
    }

    public static void main(String[] args) {
        try {
            videoEdit();
        } catch (ApiException | NoApiKeyException | InputRequiredException e) {
            System.out.println(e.getMessage());
        }
        System.exit(0);
    }
}