> For the complete documentation index, see [llms.txt](https://developers.oxylabs.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.oxylabs.io/api-targets/cn/video-and-social-media/youtube/youtube-subtitles.md).

# 字幕

通过视频 ID 提取 YouTube 字幕和隐藏式字幕，可配置语言和字幕来源（自动生成或上传者提供）。

你可以通过提供以下内容获取 YouTube 字幕和隐藏字幕（CC） **YouTube 视频 ID** 以及一个 `language_code` 到 `youtube_subtitles` 源。

## 请求示例

以下示例演示如何从一个由上传者提供字幕的 YouTube 视频中检索英文隐藏字幕。

{% tabs %}
{% tab title="cURL" %}

```shell
curl 'https://realtime.oxylabs.io/v1/queries' \\
--user 'USERNAME:PASSWORD' \\
-H 'Content-Type: application/json' \\
-d '{
        "source": "youtube_subtitles",
        "query": "c4P_YuNnZ7U",
        "context": [
            {
                "key": "language_code",
                "value": "en"
            },
            {
                "key": "subtitle_origin",
                "value": "uploader_provided"
            }
        ]
    }'
```

{% endtab %}

{% tab title="Python" %}

```python
import requests
from pprint import pprint

# 结构化载荷。
payload = {
    'source': 'youtube_subtitles',
    'query': 'c4P_YuNnZ7U',
    'context': [
        {
            'key': 'language_code',
            'value': 'en'
        },
        {
            'key': 'subtitle_origin',
            'value': 'uploader_provided'
        }
    ]
}

# 获取响应。
response = requests.request(
    'POST',
    'https://realtime.oxylabs.io/v1/queries',
    auth=('username', 'password'),
    json=payload,
)

# 打印包含结果的 JSON 响应。
pprint(response.json())
```

{% endtab %}

{% tab title="Node.js" %}

```javascript
const https = require("https");

const username = "USERNAME";
const password = "PASSWORD";
const body = {
    source: "youtube_subtitles",
    query: "c4P_YuNnZ7U",
    context: [
        {
            key: "language_code",
            value: "en",
        },
        {
            key: "subtitle_origin",
            value: "uploader_provided",
        },
    ],
};

const options = {
    hostname: "realtime.oxylabs.io",
    path: "/v1/queries",
    method: "POST",
    headers: {
        "Content-Type": "application/json",
        Authorization:
            "Basic " + Buffer.from(`${username}:${password}`).toString("base64"),
    },
};

const request = https.request(options, (response) => {
    let data = "";

    response.on("data", (chunk) => {
        data += chunk;
    });

    response.on("end", () => {
        const responseData = JSON.parse(data);
        console.log(JSON.stringify(responseData, null, 2));
    });
});

request.on("error", (error) => {
    console.error("Error:", error);
});

request.write(JSON.stringify(body));
request.end();
```

{% endtab %}

{% tab title="PHP" %}

```php
<?php

$params = array(
    'source' => 'youtube_subtitles',
    'query' => 'c4P_YuNnZ7U',
    'context' => array(
        array(
            'key' => 'language_code',
            'value' => 'en'
        ),
        array(
            'key' => 'subtitle_origin',
            'value' => 'uploader_provided'
        )
    )
);

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, "https://realtime.oxylabs.io/v1/queries");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($params));
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_USERPWD, "USERNAME" . ":" . "PASSWORD");

$headers = array();
$headers[] = "Content-Type: application/json";
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

$result = curl_exec($ch);
echo $result;

if (curl_errno($ch)) {
    echo 'Error:' . curl_error($ch);
}

curl_close($ch);
```

{% endtab %}

{% tab title="Golang" %}

```go
package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	const Username = "USERNAME"
	const Password = "PASSWORD"

	// 定义带有 query 和 context 参数的载荷。
	payload := map[string]interface{}{
		"source": "youtube_subtitles",
		"query":  "c4P_YuNnZ7U",
		"context": []map[string]string{
			{
				"key":   "language_code",
				"value": "en",
			},
			{
				"key":   "subtitle_origin",
				"value": "uploader_provided",
			},
		},
	}

	jsonValue, err := json.Marshal(payload)
	if err != nil {
		fmt.Println("Error marshalling JSON:", err)
		return
	}

	client := &http.Client{}
	request, err := http.NewRequest("POST", "https://realtime.oxylabs.io/v1/queries", bytes.NewBuffer(jsonValue))
	if err != nil {
		fmt.Println("Error creating request:", err)
		return
	}

	request.SetBasicAuth(Username, Password)
	request.Header.Set("Content-Type", "application/json")

	response, err := client.Do(request)
	if err != nil {
		fmt.Println("Error making request:", err)
		return
	}
	defer response.Body.Close()

	responseText, err := ioutil.ReadAll(response.Body)
	if err != nil {
		fmt.Println("Error reading response:", err)
		return
	}

	fmt.Println(string(responseText))
}
```

{% endtab %}

{% tab title="C#" %}

```csharp
using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Net.Http.Json;
using System.Text;
using System.Threading.Tasks;

namespace OxyApi
{
    class Program
    {
        static async Task Main()
        {
            const string Username = "USERNAME";
            const string Password = "PASSWORD";

            var parameters = new
            {
                source = "youtube_subtitles",
                query = "c4P_YuNnZ7U",
                context = new[]
                {
                    new { key = "language_code", value = "en" },
                    new { key = "subtitle_origin", value = "uploader_provided" }
                }
            };

            var client = new HttpClient();

            Uri baseUri = new Uri("https://realtime.oxylabs.io");
            client.BaseAddress = baseUri;

            var requestMessage = new HttpRequestMessage(HttpMethod.Post, "/v1/queries");
            requestMessage.Content = JsonContent.Create(parameters);

            var authenticationString = $"{Username}:{Password}";
            var base64EncodedAuthenticationString = Convert.ToBase64String(Encoding.UTF8.GetBytes(authenticationString));
            requestMessage.Headers.Add("Authorization", "Basic " + base64EncodedAuthenticationString);

            try
            {
                var response = await client.SendAsync(requestMessage);
                response.EnsureSuccessStatusCode();

                var contents = await response.Content.ReadAsStringAsync();
                Console.WriteLine(contents);
            }
            catch (HttpRequestException e)
            {
                Console.WriteLine($"Request error: {e.Message}");
            }
        }
    }
}
```

{% endtab %}

{% tab title="Java" %}

```java
package org.example;

import okhttp3.*;
import org.json.JSONArray;
import org.json.JSONObject;
import java.util.concurrent.TimeUnit;

public class Main implements Runnable {
    private static final String AUTHORIZATION_HEADER = "Authorization";
    public static final String USERNAME = "USERNAME";
    public static final String PASSWORD = "PASSWORD";

    public void run() {
        // 使用 context 参数构造 JSON 载荷
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("source", "youtube_subtitles");
        jsonObject.put("query", "c4P_YuNnZ7U");

        JSONArray contextArray = new JSONArray();
        contextArray.put(new JSONObject().put("key", "language_code").put("value", "en"));
        contextArray.put(new JSONObject().put("key", "subtitle_origin").put("value", "uploader_provided"));

        jsonObject.put("context", contextArray);

        Authenticator authenticator = (route, response) => {
            String credential = Credentials.basic(USERNAME, PASSWORD);
            return response
                    .request()
                    .newBuilder()
                    .header(AUTHORIZATION_HEADER, credential)
                    .build();
        };

        var client = new OkHttpClient.Builder()
                .authenticator(authenticator)
                .readTimeout(180, TimeUnit.SECONDS)
                .build();

        var mediaType = MediaType.parse("application/json; charset=utf-8");
        var body = RequestBody.create(jsonObject.toString(), mediaType);
        var request = new Request.Builder()
                .url("https://realtime.oxylabs.io/v1/queries")
                .post(body)
                .build();

        try (var response = client.newCall(request).execute()) {
            if (response.body() != null) {
                try (var responseBody = response.body()) {
                    System.out.println(responseBody.string());
                }
            }
        } catch (Exception exception) {
            System.out.println("Error: " + exception.getMessage());
        }

        System.exit(0);
    }

    public static void main(String[] args) {
        new Thread(new Main()).start();
    }
}
```

{% endtab %}

{% tab title="JSON" %}

```json
{
    "source": "youtube_subtitles",
    "query": "c4P_YuNnZ7U",
    "context": [
        {
            "key": "language_code",
            "value": "en"
        },
        {
            "key": "subtitle_origin",
            "value": "uploader_provided"
        }
    ]
}
```

{% endtab %}
{% endtabs %}

我们在示例中使用同步 [**Realtime**](/products/cn/web-scraper-api/integration-methods/realtime.md) 集成方法。如果您想使用 [**Proxy Endpoint**](/products/cn/web-scraper-api/integration-methods/proxy-endpoint.md) 或异步 [**Push-Pull**](/products/cn/web-scraper-api/integration-methods/push-pull.md) 集成，请参阅 [**集成方法**](/products/cn/web-scraper-api/integration-methods.md) 部分。

{% file src="/files/3cf61f95fc58f5be8d138d1c0ec33b47f7f14e96" %}

## 请求参数值

### 通用

<table><thead><tr><th width="227">参数</th><th width="289.3333333333333">描述</th><th>默认值</th></tr></thead><tbody><tr><td><mark style="background-color:green;"><strong><code>source</code></strong></mark></td><td>设置抓取器。</td><td><code>youtube_subtitles</code></td></tr><tr><td><mark style="background-color:green;"><strong><code>查询</code></strong></mark></td><td>YouTube 视频 ID。</td><td>–</td></tr><tr><td><strong>context:</strong><br><mark style="background-color:green;"><strong><code>language_code</code></strong></mark></td><td>指定字幕的语言。查找可用值 <a href="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FzrXw45naRpCZ0Ku9AjY1%2Fuploads%2FpKzuNdn6pgiePWHADWVQ%2Flanguages.json?alt=media&#x26;token=bb8d9eac-8268-4f28-bd2b-6a084c4862ea"><strong>此处</strong></a>.<br><strong>注意</strong>: 如果提供的 <code>language_code</code> 在 YouTube 视频中没有匹配的字幕/隐藏字幕，结果将返回一个 <code>404</code> 状态。</td><td>–</td></tr><tr><td><code>context:</code><br><code>subtitle_origin</code></td><td>指定是否检索以下类型的字幕： <code>auto_generated</code> 或 <code>uploader_provided</code>.</td><td>–</td></tr><tr><td><code>callback_url</code></td><td>回调端点的 URL。 <a href="/products/cn/web-scraper-api/integration-methods/push-pull.md"><strong>更多信息</strong></a></td><td>–</td></tr></tbody></table>

– 必填参数

## 错误代码

<table><thead><tr><th width="170.03125">代码</th><th width="263.372304199773">状态</th><th>描述</th></tr></thead><tbody><tr><td><code>11201</code></td><td><code>VIDEO_DELETED</code></td><td>视频已删除。</td></tr><tr><td><code>11203</code></td><td><code>VIDEO_PRIVATE</code></td><td>视频已由上传者设为私有，只有上传者和被明确邀请的人可以查看。</td></tr><tr><td><code>11204</code></td><td><code>VIDEO_GEO_RESTRICTED</code></td><td>视频受地区限制。</td></tr><tr><td><code>11205</code></td><td><code>VIDEO_LIVE</code></td><td>视频正在直播。</td></tr><tr><td><code>11206</code></td><td><code>VIDEO_AGE_RESTRICTED</code></td><td>视频有年龄限制。</td></tr><tr><td><code>11207</code></td><td><code>VIDEO_MEMBER_ONLY</code></td><td>视频仅限频道会员观看，观看者需要支付每月订阅费。</td></tr><tr><td><code>11208</code></td><td><code>VIDEO_PREMIUM_ONLY</code></td><td>视频需要 YouTube Premium 订阅。</td></tr></tbody></table>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://developers.oxylabs.io/api-targets/cn/video-and-social-media/youtube/youtube-subtitles.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.