AWS Elemental MediaLive
User Guide

Sidecar Captions

Follow this procedure if the format of the captions asset that you want to add is a sidecar, as identified in Step 3: Match Formats to Categories.

  1. In the channel that you are creating, in the navigation pane, find the output group (which you have already created). For example, find the HLS output group.

  2. Find the output where you want to add the captions, or create a new output. This output might already be set up with video and audio, or you could set up the video and audio after setting up the captions.

  3. Choose the output.

  4. For Stream settings, remove the video and audio encodes from this output by choosing the encode and selecting Remove video or Remove audio.

  5. Choose Add caption. This output should now contain one caption section and no video or audio sections.

  6. For Caption description name, type a name for this captions asset that is unique in the channel. For example, webvtt Czech. Or accept the default (which is autogenerated).

  7. For Caption selector name, type the name of the caption selector that you created in step 1. Specify the selector that identifies the captions asset that is the source for the captions in this output.

  8. For Caption settings, choose the sidecar format for the output captions.

  9. Complete the fields that appear for the selected format. For details about a field, choose the field and view the help pane.

  10. Repeat these steps to create sidecar captions in this or another output group, as applicable.