Setting up the event to use the ancillary data

After you have enabled SMPTE 2038, you should specify how you want Elemental Live to use the timecode, captions, AFD signals, and SCTE 104 messages that it detects.

Note

The information in this section assumes that you are familiar with the general steps for creating an event.

• For timecode, set the Timecode Source (in Video Selector) using one of the following options:

  • If the SMPTE 2038 contains a timecode and you want to use it – Set the source to Embedded. Elemental Live will extract the timecode from the SMPTE 2038, and never from the native TS.

  • Choose another value in order to use a different timecode source, such as system clock. These other timecode sources are never found in the SMPTE 2038.

• For captions, in Input > Caption Selector, set up the captions in the usual way.

  • If you don't want to use the captions from the SMPTE 2038 – Don't create any caption selectors that specify the captions of that type.

  • If you want to use the captions from the SMPTE 2038 – Create a caption selector that specifies that type of captions—Embedded, Teletext, or ARIB. Elemental Live will extract those captions from the SMPTE 2038. It won't look for those captions in the native TS.

    Perform the setup of the captions in the output in the usual way. For more information about working with captions, see Working with captions.

• For AFD signals, you can choose to use the AFD signals to modify the video:

  • If you don't want to use the signals – Set Respond to AFD and Insert AFD signaling to None.

  • If the SMPTE 2038 contains AFD signals and you want to use them – In Output > Video Stream > Advanced set the Respond to AFD field and the Insert AFD signaling field in the usual way. For information about the fields, click the question mark icon for the field.

  • If the SMPTE 2038 doesn't contain AFD signals, Elemental Live ignores the values in the two fields.

• For SCTE 104 messages, Elemental Live automatically converts the messages to SCTE 35 messages.

  • If you don't want to include the SCTE 35 messages in the output – There is nothing you need to do because omitting the messages is the default behavior.

  • If you want to work with the messages – See SCTE-35 and SCTE-104 message processing in Elemental Live.