:Wan - image-to-video - first frame API reference

リクエスト例

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

# シンガポールリージョンの URL。URL の取得：https://www.alibabacloud.com/help/ja/model-studio/image-to-video-api-reference
dashscope.base_http_api_url = 'https://dashscope-intl.aliyuncs.com/api/v1'


# 環境変数を設定していない場合は、次の行を Model Studio API キーに置き換えてください：api_key="sk-xxx"
# API キーの取得：https://www.alibabacloud.com/help/ja/model-studio/get-api-key
api_key = os.getenv("DASHSCOPE_API_KEY")

# --- ヘルパー関数：Base64 エンコーディング用 ---
# フォーマット：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}"

"""
画像の入力方法：
次の 3 つの方法から 1 つを選択します

1. パブリック URL を使用 - 一般公開されている画像に適しています
2. ローカルファイルを使用 - ローカルでの開発やテストに適しています
3. Base64 エンコーディングを使用 - 非公開の画像や暗号化伝送が必要なシナリオに適しています
"""

# [方法 1] 一般公開されている画像 URL を使用
# 例：パブリック画像 URL を使用
img_url = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/wpimhv/rap.png"

# [方法 2] ローカルファイルを使用 (絶対パスと相対パスをサポート)
# フォーマット要件：file:// + ファイルパス
# 例 (絶対パス)：
# img_url = "file://" + "/path/to/your/img.png"    # Linux/macOS
# img_url = "file://" + "/C:/path/to/your/img.png"  # Windows
# 例 (相対パス)：
# img_url = "file://" + "./img.png"                # 現在の実行可能ファイルのパスからの相対パス

# [方法 3] Base64 エンコードされた画像を使用
# img_url = encode_file("./img.png")

# 音声 URL を設定
audio_url = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/ozwpvi/rap.mp3"

def sample_call_i2v():
    # 同期呼び出し、結果を直接返します
    print('please wait...')
    rsp = VideoSynthesis.call(api_key=api_key,
                              model='wan2.6-i2v-flash',
                              prompt='A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise.',
                              img_url=img_url,
                              audio_url=audio_url,
                              resolution="720P",
                              duration=10,
                              prompt_extend=True,
                              watermark=False,
                              negative_prompt="",
                              seed=12345)
    print(rsp)
    if rsp.status_code == HTTPStatus.OK:
        print("video_url:", 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_call_i2v()

レスポンス例

video_url は 24 時間有効です。速やかにダウンロードしてください。

{
    "status_code": 200,
    "request_id": "2794c7a3-fe8c-4dd4-a1b7-xxxxxx",
    "code": null,
    "message": "",
    "output": {
        "task_id": "c15d5b14-07c4-4af5-b862-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-bj.oss-cn-beijing.aliyuncs.com/xxx.mp4?Expires=xxx",
        "submit_time": "2026-01-22 23:24:46.527",
        "scheduled_time": "2026-01-22 23:24:46.565",
        "end_time": "2026-01-22 23:25:59.978",
        "orig_prompt": "A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise."
    },
    "usage": {
        "video_count": 1,
        "video_duration": 0,
        "video_ratio": "",
        "duration": 10,
        "input_video_duration": 0,
        "output_video_duration": 10,
        "audio": true,
        "SR": 720
    }
}

リクエスト例

import os
from http import HTTPStatus
from dashscope import VideoSynthesis
import dashscope

# シンガポールリージョンの URL。URL の取得：https://www.alibabacloud.com/help/ja/model-studio/image-to-video-api-reference
dashscope.base_http_api_url = 'https://dashscope-intl.aliyuncs.com/api/v1'


# 環境変数を設定していない場合は、次の行を Model Studio API キーに置き換えてください：api_key="sk-xxx"
# API キーの取得：https://www.alibabacloud.com/help/ja/model-studio/get-api-key
api_key = os.getenv("DASHSCOPE_API_KEY")

# 一般公開されている画像 URL を使用
img_url = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/wpimhv/rap.png"

# 音声 URL を設定
audio_url = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/ozwpvi/rap.mp3"


def sample_async_call_i2v():
    # 非同期呼び出し、task_id を返します
    rsp = VideoSynthesis.async_call(api_key=api_key,
                                    model='wan2.6-i2v-flash',
                                    prompt='A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise.',
                                    img_url=img_url,
                                    audio_url=audio_url,
                                    resolution="720P",
                                    duration=10,
                                    prompt_extend=True,
                                    watermark=False,
                                    negative_prompt="",
                                    seed=12345)
    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))

    # 非同期タスク情報を取得
    status = VideoSynthesis.fetch(task=rsp, api_key=api_key)
    if status.status_code == HTTPStatus.OK:
        print(status.output.task_status)
    else:
        print('Failed, status_code: %s, code: %s, message: %s' %
              (status.status_code, status.code, status.message))

    # 非同期タスクの完了を待機
    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_i2v()

レスポンス例

1. タスク作成のレスポンス例

{
    "status_code": 200,
    "request_id": "6dc3bf6c-be18-9268-9c27-xxxxxx",
    "code": "",
    "message": "",
    "output": {
        "task_id": "686391d9-7ecf-4290-a8e9-xxxxxx",
        "task_status": "PENDING",
        "video_url": ""
    },
    "usage": null
}

2. タスク結果クエリのレスポンス例

video_url は 24 時間有効です。速やかにダウンロードしてください。

{
    "status_code": 200,
    "request_id": "2794c7a3-fe8c-4dd4-a1b7-xxxxxx",
    "code": null,
    "message": "",
    "output": {
        "task_id": "c15d5b14-07c4-4af5-b862-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-bj.oss-cn-beijing.aliyuncs.com/xxx.mp4?Expires=xxx",
        "submit_time": "2026-01-22 23:24:46.527",
        "scheduled_time": "2026-01-22 23:24:46.565",
        "end_time": "2026-01-22 23:25:59.978",
        "orig_prompt": "A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise."
    },
    "usage": {
        "video_count": 1,
        "video_duration": 0,
        "video_ratio": "",
        "duration": 10,
        "input_video_duration": 0,
        "output_video_duration": 10,
        "audio": true,
        "SR": 720
    }
}

リクエスト例

// 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.exception.ApiException;
import com.alibaba.dashscope.exception.InputRequiredException;
import com.alibaba.dashscope.exception.NoApiKeyException;
import com.alibaba.dashscope.utils.JsonUtils;
import com.alibaba.dashscope.utils.Constants;

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

 
public class Image2Video {

    static {
        // シンガポールリージョンの URL。URL の取得：https://www.alibabacloud.com/help/ja/model-studio/image-to-video-api-reference
        Constants.baseHttpApiUrl = "https://dashscope-intl.aliyuncs.com/api/v1";
    }

    // 環境変数を設定していない場合は、次の行を Model Studio API キーに置き換えてください：apiKey="sk-xxx"
    // API キーの取得：https://www.alibabacloud.com/help/ja/model-studio/get-api-key
    static String apiKey = System.getenv("DASHSCOPE_API_KEY");
    
    /**
     * 画像の入力方法：次の 3 つから 1 つを選択します
     *
     * 1. パブリック URL を使用 - 一般公開されている画像に適しています
     * 2. ローカルファイルを使用 - ローカルでの開発やテストに適しています
     * 3. Base64 エンコーディングを使用 - 非公開の画像や暗号化伝送が必要なシナリオに適しています
     */

    // [方法 1] パブリック URL
    static String imgUrl = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/wpimhv/rap.png";

    // [方法 2] ローカルファイルパス (file://+絶対パス)
    // static String imgUrl = "file://" + "/your/path/to/img.png";    // Linux/macOS
    // static String imgUrl = "file://" + "/C:/your/path/to/img.png";  // Windows

    // [方法 3] Base64 エンコーディング
    // static String imgUrl = Image2Video.encodeFile("/your/path/to/img.png");
    
    // 音声 URL を設定
    static String audioUrl = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/ozwpvi/rap.mp3";

    public static void image2video() throws ApiException, NoApiKeyException, InputRequiredException {
        // パラメーターを設定
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("prompt_extend", true);
        parameters.put("watermark", false);
        parameters.put("seed", 12345);

        VideoSynthesis vs = new VideoSynthesis();
        VideoSynthesisParam param =
                VideoSynthesisParam.builder()
                        .apiKey(apiKey)
                        .model("wan2.6-i2v-flash")
                        .prompt("A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise.")
                        .imgUrl(imgUrl)
                        .audioUrl(audioUrl)
                        .duration(10)
                        .parameters(parameters)
                        .resolution("720P")
                        .negativePrompt("")
                        .build();
        System.out.println("please wait...");
        VideoSynthesisResult result = vs.call(param);
        System.out.println(JsonUtils.toJson(result));
    }
    
     /**
     * ファイルを Base64 文字列にエンコードします
     * @param filePath ファイルパス
     * @return Base64 文字列 (フォーマット：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);
        }
        // MIME タイプを検出
        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");
        }
        // ファイルコンテンツを読み込んでエンコード
        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 main(String[] args) {
        try {
            image2video();
        } catch (ApiException | NoApiKeyException | InputRequiredException e) {
            System.out.println(e.getMessage());
        }
        System.exit(0);
    }
}

レスポンス例

video_url は 24 時間有効です。速やかにダウンロードしてください。

{
    "request_id": "87c091bb-7a3c-4904-8501-xxxxxx",
    "output": {
        "task_id": "413ed6e4-5f3a-4f57-8d58-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-bj.oss-cn-beijing.aliyuncs.com/xxx.mp4?Expires=xxx",
        "orig_prompt": "A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise.",
        "submit_time": "2026-01-22 23:25:45.729",
        "scheduled_time": "2026-01-22 23:25:45.771",
        "end_time": "2026-01-22 23:26:44.942"
    },
    "usage": {
        "video_count": 1,
        "duration": 10.0,
        "input_video_duration": 0.0,
        "output_video_duration": 10.0,
        "SR": "720"
    },
    "status_code": 200,
    "code": "",
    "message": ""
}

リクエスト例

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

import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesis;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisListResult;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisParam;
import com.alibaba.dashscope.aigc.videosynthesis.VideoSynthesisResult;
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.HashMap;
import java.util.Map;

public class Image2Video {

    static {
        // シンガポールリージョンの URL。URL の取得：https://www.alibabacloud.com/help/ja/model-studio/image-to-video-api-reference
        Constants.baseHttpApiUrl = "https://dashscope-intl.aliyuncs.com/api/v1";
    }

    // 環境変数を設定していない場合は、次の行を Model Studio API キーに置き換えてください：api_key="sk-xxx"
    // API キーの取得：https://www.alibabacloud.com/help/ja/model-studio/get-api-key
    static String apiKey = System.getenv("DASHSCOPE_API_KEY");
    // 入力画像 URL を設定
    static String imgUrl = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/wpimhv/rap.png";

    // 音声 URL を設定
    static String audioUrl = "https://help-static-aliyun-doc.aliyuncs.com/file-manage-files/zh-CN/20250925/ozwpvi/rap.mp3";

    public static void image2video() throws ApiException, NoApiKeyException, InputRequiredException {
        // パラメーターを設定
        Map<String, Object> parameters = new HashMap<>();
        parameters.put("prompt_extend", true);
        parameters.put("watermark", false);
        parameters.put("seed", 12345);

        VideoSynthesis vs = new VideoSynthesis();
        VideoSynthesisParam param =
                VideoSynthesisParam.builder()
                        .apiKey(apiKey)
                        .model("wan2.6-i2v-flash")
                        .prompt("A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise.")
                        .imgUrl(imgUrl)
                        .audioUrl(audioUrl)
                        .duration(10)
                        .parameters(parameters)
                        .resolution("720P")
                        .negativePrompt("")
                        .build();
        // 非同期呼び出し
        VideoSynthesisResult task = vs.asyncCall(param);
        System.out.println(JsonUtils.toJson(task));
        System.out.println("please wait...");

        // 結果を取得
        VideoSynthesisResult result = vs.wait(task, apiKey);
        System.out.println(JsonUtils.toJson(result));
    }

    // タスクリストを取得
    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);
    }

    // 単一タスクの結果を取得
    public static void fetchTask(String taskId) throws ApiException, NoApiKeyException {
        VideoSynthesis is = new VideoSynthesis();
        // DASHSCOPE_API_KEY が環境変数として設定されている場合、apiKey は null にできます
        VideoSynthesisResult result = is.fetch(taskId, apiKey);
        System.out.println(result.getOutput());
        System.out.println(result.getUsage());
    }

    public static void main(String[] args) {
        try {
            image2video();
        } catch (ApiException | NoApiKeyException | InputRequiredException e) {
            System.out.println(e.getMessage());
        }
        System.exit(0);
    }
}

レスポンス例

1. タスク作成のレスポンス例

{
    "request_id": "5dbf9dc5-4f4c-9605-85ea-xxxxxxxx",
    "output": {
        "task_id": "7277e20e-aa01-4709-xxxxxxxx",
        "task_status": "PENDING"
    }
}

2. タスク結果クエリのレスポンス例

video_url は 24 時間有効です。速やかにダウンロードしてください。

{
    "request_id": "87c091bb-7a3c-4904-8501-xxxxxx",
    "output": {
        "task_id": "413ed6e4-5f3a-4f57-8d58-xxxxxx",
        "task_status": "SUCCEEDED",
        "video_url": "https://dashscope-result-bj.oss-cn-beijing.aliyuncs.com/xxx.mp4?Expires=xxx",
        "orig_prompt": "A scene of urban fantasy art. A dynamic graffiti art character. A boy made of spray paint comes to life from a concrete wall. He raps an English song at high speed while striking a classic, energetic rapper pose. The scene is set under an urban railway bridge at night. The lighting comes from a single street lamp, creating a cinematic atmosphere full of high energy and amazing detail. The audio of the video consists entirely of his rap, with no other dialogue or noise.",
        "submit_time": "2026-01-22 23:25:45.729",
        "scheduled_time": "2026-01-22 23:25:45.771",
        "end_time": "2026-01-22 23:26:44.942"
    },
    "usage": {
        "video_count": 1,
        "duration": 10.0,
        "input_video_duration": 0.0,
        "output_video_duration": 10.0,
        "SR": "720"
    },
    "status_code": 200,
    "code": "",
    "message": ""
}