User guide

9
Using Matrox M.Key/100 with VFW programs
$ Matrox MPEG-2 I-frame + Alpha Renders video to MPEG-2
intra-frame format with alpha using the 4:2:2 Profile @ Main Level at a
selected data rate (SD resolution only).
$ Matrox MPEG-2 I-frame HD Renders video to MPEG-2 intra-frame
format using the 4:2:2 Profile @ High Level at a selected data rate.
$ Matrox MPEG-2 I-frame HD + Alpha Renders video to MPEG-2
intra-frame format with alpha using the 4:2:2 Profile @ High Level at a
selected data rate.
$ Matrox Uncompressed SD Renders video to 8-bit or 10-bit
uncompressed SD format.
$ Matrox Uncompressed SD + Alpha Renders video to 8-bit or 10-bit
uncompressed SD format with alpha.
$ Matrox Uncompressed HD Renders video to 8-bit or 10-bit
uncompressed HD format.
$ Matrox Uncompressed HD + Alpha Renders video to 8-bit or 10-bit
uncompressed HD format with alpha.
$ Matrox Offline HD Renders video to a proxy HD video format for
offline editing purposes.
¦NoteThe Matrox M-JPEG codec will also be available to create clips for
use on Matrox DigiSuite or DigiSuite LE. For information about configuring
the Matrox M-JPEG codec, see your Matrox DigiSuite documentation.
2 If you’ve selected a Matrox codec that requires configuration, such as to
select a data rate (video quality), click the
Configure button. For details, see
the following sections.
Configuring the Matrox Uncompressed codecs
When you click your program’s
Configure button to configure a Matrox
Uncompressed (SD or HD resolution, with or without alpha), a dialog box
similar to the following appears:
1 Under Bit Depth, select the bit depth you want for your video.
2 Under Scan Mode, select the scan mode of your video.