How MediaLive uses the SMPTE 2038 stream

If you set up to prefer SMPTE 2038 in an input, MediaLive uses the data according to the following rules.

Captions

You might set up the input with captions selectors that specify ARIB, Embedded, or Teletext. In this case, MediaLive first looks for the specified type of captions in the SMPTE 2038 stream. If MediaLive doesn't find the captions there, it looks in other locations in the stream.

Regardless of where MediaLive finds the captions, MediaLive extracts them, and processes them in the usual way, according to how you set up for captions in the output.

Timecode

When an input includes a SMPTE 2038 stream, MediaLive first looks for a SMPTE 12M timecode in the SMPTE 2038 stream. If MediaLive doesn't find the timecode there, it looks for a timecode embedded directly in the video stream. MediaLive associates the SMPTE 12M timecode with the closest video frame.

For information about how MediaLive uses the timecode, see How the output timecode works at runtime .

Ad avail messages

If you prefer SMPTE 2038 in an input, MediaLive extracts any SCTE 104 messages it finds, then immediately converts them to SCTE 35 messages. You can then handle the messages as you would handle SCTE 35 messages from any source. For more information, see Processing SCTE 35 messages.

KLV metadata

If you prefer SMPTE 2038 in an input, MediaLive extracts any KLV data that it finds.

You can choose to pass through the KLV metadata in one or more of the following output groups. MediaLive wraps the KLV in a SMPTE 2038 stream.

The setup steps follow.