Manage LiveChannels with Java - Object Storage Service - Centre de documentation Alibaba Cloud

Cette rubrique décrit les opérations courantes sur les LiveChannels à l'aide du kit de développement logiciel (SDK) Java, telles que la création, la liste et la suppression de LiveChannels.

Créer un LiveChannel

Avant de pouvoir envoyer des données audio et vidéo via le protocole RTMP, vous devez appeler cette opération pour créer un LiveChannel. L'opération PutLiveChannel renvoie une URL d'ingestion RTMP et une URL de lecture correspondante.

Remarque

Utilisez les URL renvoyées pour l'ingestion de flux et la lecture. Vous pouvez également utiliser le nom du LiveChannel pour effectuer des opérations connexes, telles que la consultation du statut d'ingestion de flux, la récupération des enregistrements d'ingestion de flux et la désactivation de l'ingestion de flux.

Si un LiveChannel portant le même nom existe déjà, le nouveau LiveChannel écrase le précédent. Les paramètres et le statut du nouveau LiveChannel sont réinitialisés à leurs valeurs par défaut.

Le code suivant montre comment créer un LiveChannel.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import java.util.List;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            CreateLiveChannelRequest request = new CreateLiveChannelRequest(bucketName,
                    liveChannelName, "desc", LiveChannelStatus.Enabled, new LiveChannelTarget());
            CreateLiveChannelResult result = ossClient.createLiveChannel(request);

            // Get the ingest URLs.
            List<String> publishUrls = result.getPublishUrls();
            for (String item : publishUrls) {
                System.out.println(item);
            }

            // Get the playback URLs.
            List<String> playUrls = result.getPlayUrls();
            for (String item : playUrls) {
                System.out.println(item);
            }

        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Lister des LiveChannels

Le code suivant montre comment lister des LiveChannels spécifiques.

import com.alibaba.fastjson.JSON;
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();
        
        try {
            ListLiveChannelsRequest request = new ListLiveChannelsRequest(bucketName);
            LiveChannelListing liveChannelListing = ossClient.listLiveChannels(request);
            System.out.println(JSON.toJSONString(liveChannelListing));
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Supprimer un LiveChannel

Remarque

La requête de suppression échoue si un client ingère un flux vers le LiveChannel. Si l'opération se termine sans message d'erreur, la suppression a réussi.
L'opération DeleteLiveChannel supprime uniquement le LiveChannel lui-même. Elle ne supprime pas les fichiers générés par l'ingestion de flux.

Le code suivant montre comment supprimer un LiveChannel spécifique.

import com.aliyun.oss.ClientBuilderConfiguration;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.common.auth.CredentialsProviderFactory;
import com.aliyun.oss.common.auth.EnvironmentVariableCredentialsProvider;
import com.aliyun.oss.common.comm.SignVersion;
import com.aliyun.oss.model.LiveChannelGenericRequest;

/**
 * This code provides an example of how to delete a specified LiveChannel.
 * This program demonstrates how to delete a LiveChannel in Alibaba Cloud OSS.
 */

public class Demo {

    public static void main(String[] args) throws Exception {
        // The OSS endpoint. Select an endpoint based on your region. This example uses the endpoint for the China (Hangzhou) region.
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);
        OSS ossClient = OSSClientBuilder.create()
                .endpoint(endpoint)
                .credentialsProvider(credentialsProvider)
                .clientConfiguration(clientBuilderConfiguration)
                .region(region)
                .build();

        try {
            // Create a request to delete the LiveChannel.
            LiveChannelGenericRequest request = new LiveChannelGenericRequest(bucketName, liveChannelName);
            // Execute the delete operation.
            ossClient.deleteLiveChannel(request);
        } catch (OSSException oe) {
            // Handle exceptions returned by the OSS server.
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (Exception e) {
            System.out.println("Caught an unexpected exception:");
            e.printStackTrace();
        } finally {
            if (ossClient != null) {
                // Release OSSClient resources.
                ossClient.shutdown();
            }
        }
    }
}

Définir le statut d'un LiveChannel

Le code suivant montre comment définir le statut d'un LiveChannel. Si aucun message d'erreur n'est renvoyé après l'exécution du code, le statut est défini avec succès.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            // Use the client to set the status. Set the status to LiveChannelStatus.Enabled to enable the channel, or LiveChannelStatus.Disabled to disable it.
            ossClient.setLiveChannelStatus(bucketName, liveChannelName, LiveChannelStatus.Enabled);
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Obtenir une URL signée pour un LiveChannel

Le code suivant montre comment générer une URL signée pour un LiveChannel.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import java.util.List;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            CreateLiveChannelRequest request = new CreateLiveChannelRequest(bucketName,
                    liveChannelName, "desc", LiveChannelStatus.Enabled, new LiveChannelTarget());
            CreateLiveChannelResult result = ossClient.createLiveChannel(request);

            // Get the ingest URLs.
            List<String> publishUrls = result.getPublishUrls();
            for (String item : publishUrls) {
                // Get the ingest URL without a signature.
                System.out.println(item);

                // Get the ingest URL with a signature.
                LiveChannelInfo liveChannelInfo = ossClient.getLiveChannelInfo(bucketName, liveChannelName);
                // The expires parameter specifies the expiration time as a Unix timestamp. This example sets the expiration time to one hour from now.
                long expires = System.currentTimeMillis() / 1000 + 3600;
                // The playlistName parameter specifies the name passed when you call the createLiveChannel operation. If this parameter is not specified, the default value is "playlist.m3u8". You can also call the getLiveChannelInfo operation to get this name.
                String signRtmpUrl = ossClient.generateRtmpUri(bucketName, liveChannelName, liveChannelInfo.getTarget().getPlaylistName(), expires);
                System.out.println(signRtmpUrl);
            }

            // Get the playback URLs.
            List<String> playUrls = result.getPlayUrls();
            for (String item : playUrls) {
                System.out.println(item);
            }
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Obtenir les informations de statut d'un LiveChannel

Le code suivant montre comment récupérer le statut d'ingestion de flux d'un LiveChannel spécifique.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            LiveChannelStat liveChannelStat = ossClient.getLiveChannelStat(bucketName, liveChannelName);
            System.out.println(liveChannelStat.toString());
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Obtenir la configuration d'un LiveChannel

Le code suivant montre comment récupérer la configuration d'un LiveChannel spécifique.

import com.alibaba.fastjson.JSON;
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.*;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            LiveChannelInfo liveChannelInfo = ossClient.getLiveChannelInfo(bucketName, liveChannelName);
            System.out.println(JSON.toJSONString(liveChannelInfo));
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Générer une liste de lecture pour un LiveChannel

L'opération PostVodPlaylist génère une liste de lecture vidéo à la demande (VOD) pour un LiveChannel spécifique. OSS recherche les fichiers .ts générés par l'ingestion de flux vers le LiveChannel dans une plage de temps spécifiée et les combine en une liste de lecture M3U8.

Le code suivant montre comment générer une liste de lecture pour un LiveChannel.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the playlist name.
        String playListName = "yourPlayListName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();
        
        // The time range to query. The interval cannot exceed 24 hours.
        long startTime = getUnixTimestamp("2019-06-27 23:00:00");
        long endTime = getUnixTimestamp("2019-06-28 22:00:00");
        try {
            ossClient.generateVodPlaylist(bucketName, liveChannelName, playListName, startTime, endTime);
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }

    private static long getUnixTimestamp(String time) {
        DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            Date date = format.parse(time);
            return date.getTime() / 1000;
        } catch (ParseException e) {
            e.printStackTrace();
            return 0;
        }
    }
}

Afficher la liste de lecture d'un LiveChannel

Le code suivant montre comment afficher la liste de lecture générée par l'ingestion de flux vers un LiveChannel spécifique dans une plage de temps spécifiée.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.OSSObject;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();
        
        long startTime = getUnixTimestamp("2019-06-27 23:00:00");
        long endTime = getUnixTimestamp("2019-06-28 22:00:00");
        try {
            OSSObject ossObject = ossClient.getVodPlaylist(bucketName, liveChannelName, startTime, endTime);
            System.out.println(ossObject.toString());
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }

    private static long getUnixTimestamp(String time) {
        DateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            Date date = format.parse(time);
            return date.getTime() / 1000;
        } catch (ParseException e) {
            e.printStackTrace();
            return 0;
        }
    }
}

Obtenir les enregistrements d'ingestion de flux d'un LiveChannel

L'opération GetLiveChannelHistory récupère les enregistrements d'ingestion de flux d'un LiveChannel spécifique. Cette opération renvoie au maximum les 10 derniers enregistrements d'ingestion de flux pour le LiveChannel spécifié.

Le code suivant montre comment récupérer les enregistrements d'ingestion de flux d'un LiveChannel.

import com.alibaba.fastjson.JSON;
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.LiveRecord;
import java.util.List;
import com.aliyun.oss.common.auth.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run this code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are set.
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the bucket name. For example, examplebucket.
        String bucketName = "examplebucket";
        // Specify the LiveChannel name.
        String liveChannelName = "yourLiveChannelName";
        // Specify the region where the bucket is located. For example, set Region to cn-hangzhou for China (Hangzhou).
        String region = "cn-hangzhou";

        // Create an OSSClient instance.
        // When the OSSClient instance is no longer needed, call the shutdown method to release resources.
        ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();
        clientBuilderConfiguration.setSignatureVersion(SignVersion.V4);        
        OSS ossClient = OSSClientBuilder.create()
        .endpoint(endpoint)
        .credentialsProvider(credentialsProvider)
        .clientConfiguration(clientBuilderConfiguration)
        .region(region)               
        .build();

        try {
            List<LiveRecord> list = ossClient.getLiveChannelHistory(bucketName, liveChannelName);
            System.out.println(JSON.toJSONString(list));
        } catch (OSSException oe) {
            oe.printStackTrace();
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}

Références

Pour plus d'informations sur l'opération API PutLiveChannel, consultez PutLiveChannel.
Pour plus d'informations sur l'opération API ListLiveChannel, consultez ListLiveChannel.
Pour plus d'informations sur l'opération API DeleteLiveChannel, consultez DeleteLiveChannel.
Pour plus d'informations sur l'opération API PutLiveChannelStatus, consultez PutLiveChannelStatus.
Pour plus d'informations sur l'opération API GetLiveChannelStat, consultez GetLiveChannelStat.
Pour plus d'informations sur l'opération API GetLiveChannelInfo, consultez GetLiveChannelInfo.
Pour plus d'informations sur l'opération API PostVodPlaylist, consultez PostVodPlaylist.
Pour plus d'informations sur l'opération API GetVodPlaylist, consultez GetVodPlaylist.
Pour plus d'informations sur l'opération API GetLiveChannelHistory, consultez GetLiveChannelHistory.