Matrox MXO2 Installation And User Manual page 272

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Under GOP Structure , select the GOP structure that you want to be used to
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encode your video:
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the distance between P frames. You can change these default values as
explained below.
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Drag the Noise Filter slider to set the level of noise filtering that you want to
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apply to your video before encoding. Increasing the noise filter level reduces
the amount of high frequencies in your source video by softening the
high-detail portions of your video. Since high frequencies require more bits
to encode, increasing the noise filter level leaves more bits available for the
encoding of other frames, which can improve the overall quality of your
encoded video. However, if you lose too much detail in your encoded video
you may need to decrease the noise filter level.
Click OK to save your settings.
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Chapter 17, Using the Matrox MAX H.264 Codec with Adobe Software
GOP type Select one of the following GOP types (can be changed for
CABAC encoding only):
Offers a fixed structure in how frames are referenced,
Simple GOP
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and may be more easily decoded than advanced GOPs. This is the
recommended GOP type when creating Matrox .264 files for Blu-ray
Disc authoring.
Advanced GOP (short/long)
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structural 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. Advanced GOPs may not be compatible
with some Blu-ray Disc players, and may cause stability issues in
Adobe Encore when burning a Blu-ray Disc.
The GOP type provides standard default values for the GOP size and
Drag the slider to select the number of frames in the GOP
GOP size
(must be a multiple of the distance between P frames). When creating a
Matrox .264 file for Blu-ray, the GOP size must be less than one second of
video. For example, if the frame rate for your encoded video is 29.97 fps,
the GOP size must be 29 frames or less.
Distance between P frames
frames between P frames in the GOP (can be changed for a simple GOP
only).
An advanced GOP has more
Drag the slider to select the number of