Extracting and Repackaging Closed-Caption Data
If closed captions are included in the D tracks of an Interplay Production sequence, the Closed Caption Conversion Service (CCCS) lets you extract closed captions and display them in the Closed Captioning pane. You can then repackage the closed captions as part of the sequence, export an SCC file, or export a TTML file.
You can also repackage a sequence if you create new closed captions for a sequence.
Currently roll-up captions are supported only when imported from SCC files.
Closed captions created in the Closed Captioning pane are saved in the Interplay Production database. Repackaging is required if you want to use the sequence for Interplay Production operations /such as the following:
• Send to playback
• Interplay Transcode operations (including Mixdown)
• Interplay Delivery operations
• Viewing closed captions in Media Composer.
If you repackage a basic sequence, the sequence can no longer be edited. This limitation does not apply to advanced sequences.
To extract closed captions from an Interplay Production sequence:
1. Load an Interplay Production sequence that includes closed captions in Asset mode.
2. Click the Media Pane menu and select Closed Captions to display closed captions in the Media pane.
3. Click Extract.
The data is extracted and the Closed Captioning pane displays timecode, text, and alignment for the closed-caption segments.
If the sequence is edited after you have extracted the closed captions, you need to extract the closed captions again.
To repackage closed captions with an Interplay Production sequence:
Click the Repackage button.
During the repackaging process, the button is grayed out. It becomes active again when the process is completed. Repackaging typically takes only a few seconds.
The repackaging operation creates a new D-track clip, named *.cc.nn, in the same folder as the sequence. This clip includes any other ancillary data included in the master clips in the sequence. A corresponding MXF media file is created in the workspace specified in the Interplay Administrator > Application Database view > Editing Settings tab > Audio–general settings > Media Creation workspace.