Pushing Local PC Desktop Streams to SRS Using OBS

Application Scenario

SRS is a simple and an efficient real-time video server that supports various real-time streaming media protocols, such as RTMP, WebRTC, HLS, HTTP-FLV, and SRT. Supported By FlexusL, the SRS image uses Ubuntu 22.04 and is deployed using Docker. The Nginx and Docker have been preconfigured in the image. This section describes how to push PC desktop streams to SRS using OBS.

Resource Planning and Costs

This practice uses the following resource planning as an example. You can adjust it as required.

Process

Step 1: Purchase a FlexusL Instance

1. Log in to the FlexusLconsole and click Buy FlexusL.
2. Specify required parameters for the FlexusL instance.
   

   Parameter	Example	Description
   Region	CN-Hong Kong	For low network latency and quick resource access, select the region nearest to your target users. After a FlexusL instance is created, the region cannot be changed. Exercise caution when selecting a region.
   Application Image	SRS	Select the SRS application image.
   Instance Specifications	2 vCPUs | 4 GiB memory and 80 GiB system disk	Select instance specifications as needed.
   Instance Name	SRS-Example	Customize an instance name that is easy to identify, for example, SRS-Example.
   (Optional) Associated Services	Data disk: 10 GiB Host security Cloud backup vault: 90 GiB	You can bundle any of EVS, HSS (basic edition), and CBR to your FlexusL instances as needed and set specifications as needed.
   Required Duration	1 month	The minimum duration of a purchase is one month and the maximum duration is three years. Auto-renew is enabled by default, which means the purchased FlexusL instances will be automatically renewed before they expire. If you do not enable auto-renew during the purchase process, you can still enable it later after the instances are created. For more information about auto-renewal rules, see Auto-Renewal Rules.
   Quantity	1	Set the number of FlexusL instances to be purchased.

3. Click Buy Now and complete the payment as prompted.
4. Go back to the FlexusL console and view the purchased FlexusL instance.

Step 2: Configure Security Groups

Add inbound security group rules to ensure that the application preinstalled in the image can be accessed.

1. Log in to the FlexusL console and click a resource card to go to the instance details page.
2. In the navigation pane on the left, choose Cloud Servers. Locate the server and click its name.

   

3. On the Security Groups tab, click Add Rule. In the displayed dialog box, add rules displayed in the following figure and click OK.

   The following figure only displays common rules. You can add more rules as needed.

   Table 1 Security group rules

   Priority	Action	Type	Protocol & Port	Source	Description
   100	Allow	IPv4	TCP: 9001	0.0.0.0/0	Allows external access to the application dashboard.
   100	Allow	IPv4	TCP: 1935	0.0.0.0/0	Allows access to the RTMP livestreaming server.
   100	Allow	IPv4	TCP: 1985	0.0.0.0/0	Allows access to the HTTP API server to deliver HTTP-API and WebRTC streams.
   100	Allow	IPv4	TCP: 8080	0.0.0.0/0	Allows access to the HTTP livestreaming server to deliver HTTP-FLV and HLS streams.
   100	Allow	IPv4	TCP: 8000	0.0.0.0/0	Allows access to the WebRTC media server.

Step 3: Reset the Password and Log In to the FlexusL Instance

This section describes how to log in to a FlexusL instance. A FlexusL instance does not have an initial password. After creating a FlexusL instance, set a password for the FlexusL instance before logging in to it.

1. In the Image area on the Overview page of the FlexusL console, click Access to go to the application dashboard and check whether the application has been up and running. If yes, go to the next step.
   

   Wait for several minutes until the image with the pre-installed application is up and running. Then, you can perform operations such as restarting or stopping the instance, or resetting the password. Otherwise, the initial password may become invalid and you cannot log in to the application dashboard.

   Figure 1 Entry to the application dashboard
   

   After the application is started, the initialization wizard page of the dashboard is displayed, as shown in Figure 2.

   Figure 2 Initial page of the SRS dashboard
   
   

   If the dashboard is not properly displayed, check the following causes:

   • The port for accessing the dashboard is not allowed. Check whether the port is allowed based on Step 2: Configure Security Groups.
   • The dashboard is being started. Try again later.
2. Locate the resource card and choose > Reset Password to reset the password.

   A FlexusL instance does not have an initial password. Set a password for the FlexusL instance before logging in to it. For details, see Resetting the Password for a FlexusL Instance.

   Figure 3 Resetting a password
   
3. Locate the target instance and click Remote Login and enter the username and password as prompted to log in to the FlexusL instance.

   The username is root, and the password is the one set in 2.

   

Step 4: Learn About the SRS Dashboard

Application images are based on the Ubuntu OS of the code page. You can log in to the visualized dashboard to configure applications easily.

1. In the Image area on the Overview page of the FlexusL console, click Access to go to the application dashboard.

   

   

   If the dashboard is not properly displayed, check the following causes:

   • The port for accessing the dashboard is not allowed. Check whether the port is allowed based on Step 2: Configure Security Groups.
   • The dashboard is being started. Try again later.
2. Check the SRS dashboard.
   You do not need to set the username and password for logging in to SRS. On the SRS dashboard, you can:

   • Log in to the SRS console.
   • Obtain the ingest URL.
   • Start SRS player to watch the livestreaming content.
   Figure 4 Initial page of the SRS dashboard
   

After the SRS application is set up, you can use SRS to push and watch livestreams.

Step 4: Push Local PC Desktop Streams to SRS Using OBS

This section describes how to push local PC desktop streams to SRS using OBS.