Subscription and use of Alibaba cloud video on demand service

The opening and use of Alibaba cloud video on demand service

Preface ： What is Alibaba cloud video on demand service ？

video on demand （ApsaraVideo
VoD, abbreviation VoD） It's video collection 、 edit 、 Upload 、 Media resource management 、 Automatic transcoding （ Narrowband HD TM）、 Video audit analysis 、 A one-stop audio and video on demand solution with distribution acceleration .

One 、 Open Alibaba cloud VOD service

1 Enter alicloud's official website . Find the VOD service entry in the product category , Click to enter

2 Click open now

3 I choose to pay by traffic

4 Here you can view the charging details of Alibaba cloud video on demand service , You can see that the charging of video on demand service is quite cheap .


5 This page is the console homepage of Alibaba cloud video on demand service

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Two 、 Basic operation of console

1 Upload audio and video ： Click Add tone / video

2 Select a file to upload

3 Click Start upload

4 Refresh the page , You can find that the video uploaded just now has been uploaded successfully

5 You can click to see the uploaded video

6 Add transcoding template group

7 Set the user-defined template group as the default template Group , Now upload an audio

8 You can see the wind .mp3 It was transcoded

9 For more detailed operations, please refer to Alibaba cloud official documents

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3、 ... and 、JAVA JDK Operate Alibaba cloud video on demand service

1 Click SDK file

2 find JAVA SDK

3 Open in the help document center

4 JAVA SDK home page

Two terms ：

API: Alibaba cloud provides fixed addresses , Just call this fixed address , Want to pass parameters by value , Realization function . Used HttpClient technology
SDK: It's right API Encapsulation , Call the classes or interfaces provided by Alibaba cloud to realize video functions

It is highly recommended by the government SDK instead of API

5 install SDK
(1) add to maven Warehouse

 <repositories>
      <repository>
        <id>sonatype-nexus-staging</id>
        <name>Sonatype Nexus Staging</name>
        <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
        <releases>
            <enabled>true</enabled>
        </releases>
        <snapshots>
            <enabled>true</enabled>
        </snapshots>
      </repository>
    </repositories>

(2) introduce jar Packet dependency

  <dependency>
    <groupId>com.aliyun</groupId>
    <artifactId>aliyun-java-sdk-core</artifactId>
    <version>4.3.3</version>
  </dependency>
  <dependency>
    <groupId>com.aliyun</groupId>
    <artifactId>aliyun-java-sdk-vod</artifactId>
    <version>2.15.5</version>
  </dependency>
  <dependency>
    <groupId>com.google.code.gson</groupId>
    <artifactId>gson</artifactId>
    <version>2.8.2</version>
  </dependency>

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Four 、 actual combat

First step ： establish service_vod engineering , Introduce dependencies

pom.xml

<dependencies>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-core</artifactId>
            <version>4.3.3</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun.oss</groupId>
            <artifactId>aliyun-sdk-oss</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.aliyun</groupId>
            <artifactId>aliyun-java-sdk-vod</artifactId>
            <version>2.15.2</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.28</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20170516</version>
        </dependency>
        <dependency>
            <groupId>com.google.code.gson</groupId>
            <artifactId>gson</artifactId>
            <version>2.8.2</version>
        </dependency>
    </dependencies>

The second step ： Initialize object

Interpretation of official documents ： https://help.aliyun.com/document_detail/61062.html?spm=a2c4g.11186623.6.908.11153815MJ9vxr

InitObject.java

import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.profile.DefaultProfile;

@SuppressWarnings("all")
public class InitObject {
    

    public static DefaultAcsClient initVodClient(String accessKeyId, String accessKeySecret) throws ClientException {
    
        String regionId = "cn-shanghai";  //  On demand service access area 
        DefaultProfile profile = DefaultProfile.getProfile(regionId, accessKeyId, accessKeySecret);
        DefaultAcsClient client = new DefaultAcsClient(profile);
        return client;
    }
}

The third step ： Get video address

Be careful ：initVodClient() The two parameters of the method are Alibaba cloud user security information management AccessKey and AccessSecret

Accessible https://usercenter.console.aliyun.com/#/manage/ak Set relevant settings in
TestVod.java

	/** *  Get video Url Address  * @throws ClientException */
    public static void getPlayUrl() throws ClientException {
    
        //1  According to the video ID Get the video playback address 
        //1.1  Create initialization object 
        DefaultAcsClient client = InitObject.initVodClient("accessKey", "accessSecret");

        //1.2  Create get video address request and response
        GetPlayInfoRequest request = new GetPlayInfoRequest();
        GetPlayInfoResponse response = new GetPlayInfoResponse();

        //1.3  towards request Set the video in the object ID
        request.setVideoId("c833930e3e804a768af63826a862eeab");

        //1.4  Call the method in the initialization object , Pass on request, get data 
        response = client.getAcsResponse(request);

        List<GetPlayInfoResponse.PlayInfo> infoList = response.getPlayInfoList();

        for (GetPlayInfoResponse.PlayInfo playInfo : infoList) {
    
            System.out.println("PlayInfo.PlayURL = " + playInfo.getPlayURL() + "\n");
        }

        //Base Information 
        System.out.println("VideoBase.Title = " + response.getVideoBase().getTitle() + "\n");

    }

---

The effect is as shown in the picture

Step four ： Get video credentials

When the audio is encrypted , Cannot access directly through address , At this time, you can access through video credentials , The video voucher is provided by Alibaba cloud API Generate

---

/** *  Get video credentials  * @throws ClientException */
    public static void getPlayAuth() throws ClientException {
    
        //1  According to the video ID Get the video playback address 
        //1.1  Create initialization object 
        DefaultAcsClient client = InitObject.initVodClient("accessKey", "accessSecret");

        //1.2  Create initialization object 
        GetVideoPlayAuthRequest request = new GetVideoPlayAuthRequest();
        GetVideoPlayAuthResponse response = new GetVideoPlayAuthResponse();

        //1.3  towards request Object settings video ID value 
        request.setVideoId("c833930e3e804a768af63826a862eeab");

        //1.3  Call the method in the initialization object to get the voucher 
        response = client.getAcsResponse(request);

        String playAuth = response.getPlayAuth();
        System.out.println("playAuth: " + playAuth);

    }

---

The effect is as shown in the picture

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Step five ： Upload videos locally to Alibaba cloud

First, load a new Jar package （ I stepped on a pit here , The original dependency cannot be loaded into maven, So I had to import one manually jar package ,maven Dependence is replaced by the first step of dependence ）

---

Almost doubted life ！

This jar Bag is aliyun-java-vod-upload-1.4.12.jar I found it in the official documents

Address ：
https://help.aliyun.com/document_detail/53406.html?spm=a2c4g.11186623.6.1066.64fd7bdcEUIU0T

Be careful ！！！ The official document explains as follows ：

Be careful ： Some dependencies are listed below jar The version of the package , You can directly add maven rely on , Can also be VODUploadDemo-java-1.4.12.zip Everything in the bag jar Packages are introduced into your project for use . among **,aliyun-java-vod-upload-1.4.12.jar Not officially open source yet , Please introduce jar Package into your project for use .**

That is to say jar The package is not at all maven Warehouse , All cannot pass directly maven download , You need to install this dependency manually ！！！

---

TestUploadVod.java

import com.aliyun.vod.upload.impl.UploadVideoImpl;
import com.aliyun.vod.upload.req.UploadVideoRequest;
import com.aliyun.vod.upload.resp.UploadVideoResponse;

public class TestUploadVod {
    

    public static void main(String[] args) {
    

        String accessKeyId = "accessKeyId";
        String accessKeySecret = "accessKeySecret";
        String title = "100.mp4";   // File name after upload 
        String fileName = "G:\\1.mp4";  // Local file path and name 

        uploadVideoLocal(accessKeyId, accessKeySecret, title, fileName);
    }

    /** * * @param accessKeyId ID * @param accessKeySecret  Secret key  * @param title  The file name after uploading  * @param fileName  Local file path before uploading  */
    public static void uploadVideoLocal(String accessKeyId, String accessKeySecret, String title, String fileName){
    
        // How to upload video 
        UploadVideoRequest request = new UploadVideoRequest(accessKeyId, accessKeySecret, title, fileName);
        /*  You can specify the size of each slice when uploading slices , The default is 2M byte  */
        request.setPartSize(2 * 1024 * 1024L);
        /*  You can specify the number of concurrent threads during fragment upload , The default is 1,( notes ： This configuration will occupy the server CPU resources , It needs to be specified according to the situation of the server ）*/
        request.setTaskNum(1);

        UploadVideoImpl uploader = new UploadVideoImpl();
        UploadVideoResponse response = uploader.uploadVideo(request);

        if (response.isSuccess()) {
    
            System.out.print("VideoId=" + response.getVideoId() + "\n");
        } else {
    
            /*  If the callback is set URL Invalid , Does not affect the video upload , Can return VideoId At the same time, the error code will be returned . In other cases, the upload fails ,VideoId It's empty , At this time, you need to analyze the specific error reason according to the returned error code  */
            System.out.print("VideoId=" + response.getVideoId() + "\n");
            System.out.print("ErrorCode=" + response.getCode() + "\n");
            System.out.print("ErrorMessage=" + response.getMessage() + "\n");
        }
    }

}

Console output after successful operation

View background , I found that the upload was successful ( Wasted a night of events ), Celebrate ！

Step six ： Alicloud installation depends on local maven Warehouse

Ali cloud, aliyun-java-vod-upload-1.4.12.jar There is no official open source , So I can only put this jar Pack into local warehouse

---

maven command
Get into jar Package directory , Input ：

mvn install:install-file -DgroupId=com.aliyun -DartifactId=aliyun-sdk-vod-upload -Dversion=1.4.12 -Dpackaging=jar -Dfile=aliyun-java-vod-upload-1.4.12.jar

---

As shown in the figure , This Jar The package is successfully installed locally Maven The warehouse ！

Xiaobai conclusion

1. Alibaba cloud is a leading technology in China and even in the world , I have studied Alibaba cloud before OSS service , Today I learned about Alibaba cloud's video on demand service , Later, I will learn about Alibaba cloud's SMS service .

2. Pay attention to official documents ！！！