Matrox Electronic Systems Matrox RT.X2 User Manual
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Chapter 3, Defining Your Adobe Premiere Pro Settings
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Matrox MPEG-2 I-frame
Captures video to MPEG-2 intra-frame format
using the 4:2:2 Profile @ Main Level at a selected data rate (SD resolution
only). For the best results when capturing video clips on which you’ll be
applying chroma key effects, you should use this codec instead of a DV
codec.
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Matrox MPEG-2 I-frame
HD
Captures video to MPEG-2 intra-frame
format using the 4:2:2 Profile @ High Level at a selected data rate (HD
resolution only). This is the only capture format available to capture analog
video for a 1440× 1080i project.
8
If you’re capturing to a Matrox MPEG-2 format, click the
Configure
button
to configure your MPEG-2 settings. For details on the available settings, see
“Selecting your MPEG-2 I-frame settings”
, or
. Once you’ve configured your settings,
click
OK
to return to the
Matrox Capture Settings
dialog box.
9
Select
Use Automatic Gain Control (AGC)
if you want the gain of your
composite or S-Video input signal to be adjusted automatically to
compensate for very bright or dark images. This improves the brightness or
contrast of your picture.
10
Click
OK
to save your settings and return to the
Project Settings
dialog
box.