Examples of HLS Rendition Groups - AWS Elemental Server

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Examples of HLS Rendition Groups

Example 1

The outputs in an HLS output group consist of:

  • One video stream.

This video is associated with an audio rendition group that contains:

  • One English stream.

  • One French stream.

  • One Spanish stream.


     This illustration shows an HLS output group (that consists of one video stream) that is
      associated with a rendition group (that consists of three audio streams).

Example 2

The outputs in an HLS output group consist of:

  • One “video high” stream.

  • One “video medium” stream.

  • One “video low” stream.

Each of these videos is associated with the same audio rendition group that contains:

  • One English stream.

  • One French stream.

  • One Spanish stream.


     This illustration shows an HLS output group (that consists of three video streams) that
      is associated with a rendition group (that consists of three audio streams).

Example 3

The outputs in an HLS output group consist of:

  • One video stream.

This video is associated with two audio rendition groups.

The first audio rendition group contains:

  • One English stream in AAC codec.

  • One French stream in AAC codec.

  • One Spanish stream in AAC codec.

The second audio rendition group contains:

  • One English stream in Dolby Digital.

  • One French stream in Dolby Digital.

  • One Spanish stream in Dolby Digital.


     This illustration shows an HLS output group (that consists of three video streams) that
      is associated with two rendition groups (that each consist of three audio streams).

Example 4

There are two output groups, one that pushes to a WebDAV server and the other that delivers to an Akamai server.

Each output group is identical in terms of its video and rendition groups. For example, each output group produces the video and rendition group from Example 2. You do not need to encode the streams twice; do it only once for each output group. So long as the two output groups are in the same event, each can be associated with the same streams.


     This illustration shows two HLS output groups that each produce the same video and
      rendition groups.

Example 5

There are two output groups, one that pushes to a WebDAV server and the other that delivers to an Akamai server.

Each output group is similar in terms of its video and rendition groups. For example, the first output group produces the video and rendition group from Example 2. The second output group produces the only “video high” and “video low” but it is associated with the same audio rendition group as the first output group.


     This illustration shows two HLS output groups that produce similar, but not identical,
      video and rendition groups.