Doug Johnson Productions

Scope guide · Production tools

Ancillary Data

Inspect metadata and browse a rolling minute of snapshots while capture continues.

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Learn & Reference / Scope library / Ancillary Data

What metadata changed beside the picture?

Add this view from Add scope > Ancillary Data, then choose the input you want to inspect. Use the pane's i button for its in-app reading guide.

Read this example.

Application-rendered fixture with timecode, tally and an Active Format Description packet.
Application-rendered fixture with timecode, tally and an Active Format Description packet. Click the image for a larger view.
  1. Keys and values describe the selected frame; highlighted values indicate changes.
  2. Timecode supplies timing evidence. Packet fields identify standard, DID/SDID, placement, bytes and payload.
  3. Browse snapshots or double-click a field to follow a single key.

Try it yourself.

  1. Choose an input supplying metadata.
  2. Browse retained snapshots while capture continues.
  3. Double-click a changing field, then return to All keys or Live.

Useful controls.

  • Live follows the latest snapshot.
  • Key history focuses on a single metadata field.
  • Packet and timecode availability follow the adapter and incoming signal.

This screenshot uses deterministic test metadata. On a real input, read the fields supplied by that signal.