Matrox MXO2 Installation And User Manual page 90

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GOP size and the distance between P frames. You can change these default
values as explained below.
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Click Save .
7
Creating a setting for exporting to QuickTime
Open Apple Compressor, click the Create a new setting button in the
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Settings
¦ Note
QuickTime setting that you want to use as a starting point for creating the new
setting.
In the Inspector window, type a Name and Description .
2
Chapter 9, Using the Matrox MAX H.264 codec
Offers a fixed structure in how frames are referenced, and
Simple GOP
may be more easily decoded than advanced GOPs by some software
codecs, resulting in less system resources being used.
Advanced GOP (short/long)
flexibility than a simple GOP, is capable of using more reference frames,
and therefore may provide better overall compression. For a "short"
advanced GOP, the distance between P frames is always 4, and for a
"long" advanced GOP, the distance between P frames is always 8.
Selecting a GOP structure provides standard default values for the
Select the GOP size in frames (must be a multiple of the distance between
P frames).
Select the Distance between P frames that you want for your GOP
structure (can be changed for a simple GOP only).
tab, and then click QuickTime Movie .
You can also select and duplicate an existing Matrox MAX H.264
An advanced GOP has more structural