下载视频

下载视频

curl --request GET \
  --url https://api.gravitex.ai/v1/video/generations/download \
  --header 'Authorization: <authorization>'

import requests

url = "https://api.gravitex.ai/v1/video/generations/download"

headers = {"Authorization": "<authorization>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: '<authorization>'}};

fetch('https://api.gravitex.ai/v1/video/generations/download', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.gravitex.ai/v1/video/generations/download",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.gravitex.ai/v1/video/generations/download"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "<authorization>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.gravitex.ai/v1/video/generations/download")
  .header("Authorization", "<authorization>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gravitex.ai/v1/video/generations/download")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = '<authorization>'

response = http.request(request)
puts response.read_body

GET

video

generations

download

下载视频

curl --request GET \
  --url https://api.gravitex.ai/v1/video/generations/download \
  --header 'Authorization: <authorization>'

import requests

url = "https://api.gravitex.ai/v1/video/generations/download"

headers = {"Authorization": "<authorization>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: '<authorization>'}};

fetch('https://api.gravitex.ai/v1/video/generations/download', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.gravitex.ai/v1/video/generations/download",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.gravitex.ai/v1/video/generations/download"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "<authorization>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.gravitex.ai/v1/video/generations/download")
  .header("Authorization", "<authorization>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.gravitex.ai/v1/video/generations/download")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = '<authorization>'

response = http.request(request)
puts response.read_body

简介

下载视频接口用于获取已完成的视频文件数据。注意：此接口仅 Sora 2 模型支持。其他模型（Veo、阿里万相、豆包 Seedance）在任务成功后，视频URL会直接包含在查询任务接口的响应中，无需额外下载步骤。

认证

string

必填

Bearer Token，如 Bearer sk-xxxxxxxxxx

查询参数

string

必填

视频ID，由查询任务接口返回的 task_id

使用示例

curl -X GET "https://api.gravitex.ai/v1/video/generations/download?id=video_69095b4ce0048190893a01510c0c98b0" \
  -H "Authorization: Bearer sk-xxxxxxxxxx"

响应示例

{
  "success": true,
  "generation_id": "video_69095b4ce0048190893a01510c0c98b0",
  "task_id": "video_69095b4ce0048190893a01510c0c98b0",
  "format": "mp4",
  "size": 15728640,
  "base64": "AAAAIGZ0eXBpc29tAAACAGlzb21pc28yYXZjMW1wNDEAAAAIZnJlZQAAB...",
  "data_url": "data:video/mp4;base64,AAAAIGZ0eXBpc29tAAACAGlzb21pc28yYXZjMW1wNDEAAAAIZnJlZQAAB..."
}

响应字段说明

字段名	类型	说明
`success`	boolean	是否成功
`generation_id`	string	生成ID（与 videoId 相同）
`task_id`	string	任务ID
`format`	string	视频格式（固定为 `"mp4"`）
`size`	number	视频文件大小（字节）
`base64`	string	Base64 编码的视频数据
`data_url`	string	Data URL 格式的视频数据，可直接用于前端 `<video>` 标签

使用说明

前端使用 data_url

data_url 字段可以直接用于 HTML <video> 标签：

<video src="data:video/mp4;base64,AAAAIGZ0eXBpc29tAAACAGlzb21pc28yYXZjMW1wNDEAAAAIZnJlZQAAB..." controls></video>

下载保存文件

使用 base64 字段可以将视频保存为文件：

JavaScript 示例

// 从响应中获取 base64 数据
const response = await fetch('https://api.gravitex.ai/v1/video/generations/download?id=video_xxx', {
  headers: {
    'Authorization': 'Bearer sk-xxxxxxxxxx'
  }
});
const data = await response.json();

// 将 base64 转换为 Blob
const binaryString = atob(data.base64);
const bytes = new Uint8Array(binaryString.length);
for (let i = 0; i < binaryString.length; i++) {
  bytes[i] = binaryString.charCodeAt(i);
}
const blob = new Blob([bytes], { type: 'video/mp4' });

// 创建下载链接
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = 'video.mp4';
a.click();
URL.revokeObjectURL(url);

Python 示例

import requests
import base64

def download_video(video_id, api_key):
    """下载视频并保存为文件"""
    url = f"https://api.gravitex.ai/v1/video/generations/download?id={video_id}"
    headers = {"Authorization": f"Bearer {api_key}"}

    response = requests.get(url, headers=headers)
    data = response.json()

    if data.get("success"):
        # 解码 base64 数据
        video_data = base64.b64decode(data["base64"])

        # 保存为文件
        with open("video.mp4", "wb") as f:
            f.write(video_data)

        print(f"✅ 视频已保存: video.mp4 (大小: {data['size']} 字节)")
        return True
    else:
        print("❌ 下载失败")
        return False

完整流程示例（Sora 2）

提交视频生成任务

curl -X POST "https://api.gravitex.ai/v1/video/generations" \
  -H "Authorization: Bearer sk-xxxxxxxxxx" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "sora-2",
    "prompt": "一只可爱的小猫在花园里玩耍",
    "seconds": "4",
    "size": "720x1280"
  }'

响应：

{
  "task_id": "video_69095b4ce0048190893a01510c0c98b0",
  "status": "submitted",
  "format": "mp4"
}

查询任务状态（轮询直到成功）

curl -X GET "https://api.gravitex.ai/v1/video/generations/video_69095b4ce0048190893a01510c0c98b0" \
  -H "Authorization: Bearer sk-xxxxxxxxxx"

当状态为 succeeded 时，继续下一步。

下载视频文件

curl -X GET "https://api.gravitex.ai/v1/video/generations/download?id=video_69095b4ce0048190893a01510c0c98b0" \
  -H "Authorization: Bearer sk-xxxxxxxxxx"

提交视频任务

提交视频生成任务

查询视频任务

查询视频生成任务的状态和结果

API 文档

对话与文本

安全与音频

图像系列

视频系列

文本补全和向量嵌入

接口模块

简介

认证

查询参数

使用示例

响应示例

响应字段说明

使用说明

前端使用 data_url

下载保存文件

JavaScript 示例

Python 示例

完整流程示例（Sora 2）

相关接口

提交视频任务

查询视频任务

​简介

​认证

​查询参数

​使用示例

​响应示例

​响应字段说明

​使用说明

​前端使用 data_url

​下载保存文件

​JavaScript 示例

​Python 示例

​完整流程示例（Sora 2）

​相关接口

提交视频任务

查询视频任务

简介

认证

查询参数

使用示例

响应示例

响应字段说明

使用说明

前端使用 data_url

下载保存文件

JavaScript 示例

Python 示例

完整流程示例（Sora 2）

相关接口