Step 5: Creating MediaLive Channels (Optional)

If you don’t have a live source, you can create a simulated source using MediaLive.

In the search bar, type MediaLive.

MediaLive Channel

1. Let’s first create an input for the channel. On the side bar in the left, select Inputs

   

2. Click Create Input

   

3. Under Input details, specify the following configuration.

   Under Input name - required, type in s3-source-1.

   Under Input type - required, select MP4

   

   Under Input class, select SINGLE_INPUT.

   

   Under Input source A and URL, type in the s3 url for one of your S3 sources that you uploaded earlier.

   

   Now click Create input.

   

4. With the Input created, let’s create the Channel itself. Go to Channels. Click Create channel.

   

5. Start by adding Input Attachtments, by clicking the Add button within the left Channel panel section. Then select the Input created in the previous step. Click Confirm

   

6. In the General input setting section, change the drop down menu Source End Behavior field to LOOP. That way, the file will keep looping. Leave the other options as default.

   

7. Now, let’s configure the Channel itself. Click on the Channel and input details. Give the channel a Name. As an example, use contribution-source-1. Under the IAM role, use the default selection “Create role from temple option”. Then click Create IAM Role. Select Use existing role to select the newly created role MediaLiveAccessRole.

   

8. Scroll down and look for the Channel class section. Select SINGLE_PIPELINE. Leave the other options as defaults.

   

9. In the Output groups, within the left Channel panel section, click on the Add button. Select UDP. Click Confirm.

   

10. Under Output 1 within UDP destinations type in the corresponding Contribution MediaConnect Flow IP and port, with the RTP sufix, for example, rtp://<your-emx-ip>:7000

    

11. Scroll down and click on Settings, inside the UDP Output section.

    

12. Now you can define the encoding parameters for this Output Group. Select H264 as Codec Settings. Go to Rate Control and enter Bitrate as 8000000 to force the encoder to generate a 8 Mbps feed. Change the GOP Size to 1 second and GOP Size Units to SECONDS.

16. Leave the other options blank, or default. Finally, scroll back up and click Create Channel. At this point the channel is configured, but we will not start the channel.

17. Repeat steps 1-16 with a second source video file and create a corresponding input s3-source-2 and MediaLive channel contribution-source-2.

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