4.1

Chapter 4 Advanced adjustments 38
Setting summary
Displays the setting name and transcoding format, as well as an estimated output le
size. When you add a setting to a job or change the setting’s properties, this summary
automatically updates.
General properties
•
Name: Displays the name of the setting.
•
Description: Displays the description of the setting.
•
Extension: Displays the extension of the output le.
•
Allow job segmenting: If you’ve set up distributed processing, select this checkbox to have
Compressor process the output le using your shared computer group. For more information,
see Transcode batches using other computers on page 101.
•
Default location: Select an item from the pop-up menu to set the default save location for
transcoded les.
•
Format: Use the pop-up menu to set the stream type for the output le. There are three
options:
•
Program Stream: This stream type contains only one MPEG-2 content channel and its
associated audio. Program streams require an error-free delivery method and are primarily
used for storage or processing within a computer.
•
Elementary Stream: This stream type contains only one MPEG-2 content channel and no
audio. When you select this option, you should also set the “Stream usage” property.
•
Transport Stream: This stream type can contain several MPEG-2 content channels and
associated audio. All the channels are multiplexed together, allowing the receiver to choose
which to play back. Compressor supports creating single-channel transport streams that can
also include associated audio. Transport streams can also recover from interruptions during
playback, making them ideally suited for broadcast and streaming applications where noise
or network congestion can lead to interruptions.
•
Stream usage: Use this pop-up menu to specify the MPEG-2 transcoding output. Compressor
modies the available properties based on the option you choose:
•
Generic: This option allows you complete access to all the MPEG-2 properties. This is the
only option that supports the MPEG-2 640 x 480 video format in addition to the standard-
denition (SD) and high-denition (HD) video formats. It’s also the only option that supports
creating transport and program streams. It supports the complete bit rate range of 2.0 Mbps
to 40.0 Mbps.
•
DVD: This option restricts the encoding properties to those allowed by the SD DVD
specication. These include the NTSC and PAL video formats and a bit rate range of 2.0 Mbps
to 9.0 Mbps.
•
Blu-ray: This option restricts the encoding properties to those allowed by Blu-ray video discs.
These include the SD and HD video formats and a bit rate range of 10.0 Mbps to 40.0 Mbps.
•
Add Apple metadata: Select this checkbox to have Compressor parse specic MPEG-2 authoring
information during the transcoding process and provide it in the output le. The resulting le
will be read faster by other applications.
•
Include chapter markers only: Select this checkbox to include chapter markers, but not
unnamed compression markers, in MPEG-2 output. When this checkbox is deselected, all
markers are included in the output le. For more information about chapter markers, see Add
markers on page 82.
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