4.1

Chapter 5 Advanced tasks 81
Associate a closed caption le with a source le
Compressor can include a closed caption le (using the Scenarist closed caption format le)
when encoding les with the following formats:
•
QuickTime les: Compressor adds the closed caption le as a closed caption track to the
QuickTime output le. You can view the closed captions using QuickTime Player (version 7.2
or later).
•
MPEG-2 elementary stream les: Compressor embeds the closed caption data in an elementary
MPEG-2 video stream so that it can be used for DVD authoring.
•
MPEG-2 program and transport stream les: Compressor embeds the closed caption data in
program and transport MPEG-2 streams using the EIA-608 ATSC protocol.
Note: The timecode values in the closed caption le must directly relate to the timecode of the
source media le. If you need to see the timecode values in a Scenarist le, try opening it in the
TextEdit application that comes with OS X.
1 In the batch area, select the job that contains the source le to which you want to add closed
captioning information.
Tip: To select the job, rather than an output row under the job, click the source lename at the
top of the job area.
2 In the Metadata area of the Job inspector, click the Choose button in the “Closed captions”
property, select a Scenarist closed caption le in the window that appears, and then click Open.
Set a poster frame
The poster frame is a still image that represents a video or audio media le or a podcast chapter
in applications such as iTunes and in the Finder.
Note: When viewing the output le in iTunes, if no poster frame is set, iTunes automatically uses
the frame 10 seconds from the movie’s rst frame as the poster frame.
Set the poster frame for a job
1 In the batch area, select the job that contains the source le to which you want to set a
poster frame.
Tip: To select the job, rather than an output row under the job, click the source lename at the
top of the job area.
2 In the preview area, position the timeline playhead at the frame you want to be the
poster frame.
3 In the preview area, choose Set Poster Frame from the Marker pop-up menu .
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