Console configuration

Add an ingest domain

1. In the navigation pane on the left, choose Domain Names. On the Domain Management page, click Add Domain.

2. In the Add Domain Name step, configure the parameters.

   1. Set Domain Type to Ingest Domain.

   2. For more information about how to select an acceleration region, see How do I select an acceleration region for a domain name?

   3. For Accelerated Domain Name, enter the ingest domain that you prepared.

   4. For more information about how to select a live center, see How do I select a live center?

   Important

   The ingest domain and the streaming domain must be in the same live center. You cannot change the live center after the initial configuration.

   Note

   When you add a domain name to ApsaraVideo Live for the first time, you must verify the ownership of the domain name. Follow the on-screen instructions. For more information, see Verify the ownership of a domain name.

3. Click Next. Configure a CNAME record to enable live streaming acceleration. The CNAME record directs end-user requests to Alibaba Cloud Points of Presence (POPs) for acceleration. Follow the on-screen instructions. After the configuration is complete, the CNAME validation result is displayed as shown in the following figure.

   

After you complete the preceding steps, the ingest domain is configured. The result in the console is shown in the following figure.

View the URL signing information

URL signing protects your content from being downloaded or used by unauthorized sites. URL signing is enabled by default when you add a domain name.

1. On the Domain Names page of the ApsaraVideo Live console, find the target ingest domain and click Domain Settings.

2. Choose Streaming Management > Access Control.

3. Record and save the Primary KEY for the ingest domain. You will need this key for server-side deployment. The following figure shows the location of the primary key in the console.

   

Add a streaming domain

The steps to add a streaming domain are the same as for adding an ingest domain. Set the Domain Type parameter to Streaming Domain.

After you add the streaming domain, the streaming domain is configured and available. The result in the console is shown in the following figure.

View the URL signing information

URL signing is enabled by default. Record and save the Primary KEY for the streaming domain. The steps are the same as for viewing the URL signing information for the ingest domain.

Associate the ingest domain

Associate the ingest domain with the corresponding streaming domain.

1. In the navigation pane on the left, choose Domain Names to go to the Domain Management page.

2. Find the target streaming domain and click Domain Settings.

3. Choose Streaming Management > Basic Settings. Click the Stream Ingest Information tab, and then click the Add Stream Ingest Information button.

4. Select the ingest domain that is in the same live center and click OK.

The preceding steps associate the streaming domain with the ingest domain. The result in the console is shown in the following figure.

Configure cross-origin resource sharing

Cross-origin resource sharing (CORS) is a standard HTML5 solution that allows web pages to access resources from different domains. This ensures secure data transmission. For more information, see Cross-Origin Resource Sharing. This project requires web clients to play classroom live streams. Therefore, you must configure the HTTP response header of the streaming domain to allow CORS.

1. In the navigation pane on the left, click Domain Names. On the Domain Management page, find the target streaming domain and click Domain Settings.

2. Choose Streaming Management > HTTP Header Settings and click Add.

3. Set the parameter to Access-Control-Allow-Origin and the value to *.

For more information, see Configure HTTP headers. The result in the console is shown in the following figure.

Enable HTTPS

HTTPS secure acceleration encrypts critical user information during transmission. This prevents security risks, such as sensitive information leakage that can occur if an attacker captures session IDs or cookies. It also verifies data integrity during transmission to prevent man-in-the-middle (MITM) attacks, such as DNS hijacking, content hijacking, or content tampering. For more information, see Configure HTTPS secure acceleration.

After the configuration is successful, the following result is displayed in the console.

Configure a transcoding template

Live stream transcoding can resolve issues such as poor playback quality or video stuttering caused by unsuitable bitrates of the ingest stream. For more information about how to configure default transcoding, see Configure default transcoding.

Enable Real-Time Streaming

Real-Time Streaming (RTS) is a premium feature of ApsaraVideo Live that provides a live streaming service with ultra-low latency, high concurrency, and high-definition, smooth playback. For more information, see Overview of Real-Time Streaming (RTS).

1. Log on to the ApsaraVideo Live console.

2. In the navigation pane on the left, choose Live+ > Real-Time Streaming.

3. Select a streaming domain.

4. Turn on the Real-Time Streaming switch and select Sub-second Latency (700 ms to 900 ms end-to-end latency).

Configure recording and playback

You can use the recording feature of ApsaraVideo Live to record live streams for playback in your audio and video applications. For more information, see Recording management.

Create an IM application for live streaming

This project requires interaction. Therefore, you must create an interactive messaging (IM) application. Follow these steps:

1. In the navigation pane on the left of the ApsaraVideo Live console, choose Live+ > Interactive Messages > Application Management.

2. Click Create Application.

3. In the Create Application dialog box, select a region, enter an application name, and leave Callback Settings and Security Audit disabled for now.

4. Click Create. The new application is added to the application list. The AppId, AppKey, AppSign, and creation time are automatically generated.

After successful creation, the console displays the following information.

Click View Details to view and save the AppId, AppKey, and AppSign. You will need these credentials for the server-side deployment.

Create an ApsaraVideo Real-time Communication application

This project requires audio and video co-streaming and stream mixing. Therefore, you must create an ApsaraVideo Real-time Communication application. This feature enables video Q&A sessions between students and the teacher during a live class. The teacher can invite students to co-stream to ask questions, which enhances the interactivity and real-time experience of the class. The following figure shows the audio and video co-streaming model. When a student and a teacher are co-streaming, other viewers receive the mixed stream.

Create an ApsaraVideo Real-time Communication application in the console. Follow these steps:

1. In the navigation pane on the left of the ApsaraVideo Live console, click Live+ > ApsaraVideo Real-time Communication > Application Management.

2. On the Application Management page, click Create Application. Enter a custom Instance Name, select Terms of Service, and then click Buy Now.

   Note

   Creating an application is free of charge. You are charged on a pay-as-you-go basis for your actual usage. For more information about billing, see Billing of audio and video calls.

3. After a success message appears, refresh the Application Management page to view your new ApsaraVideo Real-time Communication application.

4. Click the ApsaraVideo Real-time Communication application. On the Bypass Live Streaming page, in the Global Bypass Live Streaming to ApsaraVideo Live section, enable Bypass Live Streaming. Configure the streaming domain for bypass live streaming. Set it to the streaming domain that you added in the Add an ingest domain step. Do not use a sub-streaming domain. Enable Single-stream Forwarding. If you want to configure recording or snapshots, you must configure them for this domain.

When the creation is complete, the console displays the following result.

In the management section, view and save the Application ID and AppKey. You will need these values for the server-side deployment.