User guide

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Using VFW programs without the Axio hardware
Using VFW programs without the Axio
hardware
If you installed the Matrox VFW software codecs (see “Installing the Matrox
VFW software codecs on a system without the Axio hardware” on page 56), you
can render and play back Axio-compatible .avi files using your VFW program
without having the Axio hardware in your computer. For example, if you
captured clips to Matrox offline HD format using Adobe Premiere Pro, you could
edit and play back those clips on a system without the Axio hardware, assuming
that you installed the Matrox VFW software codecs on that system.
¦NoteYou must have the Matrox Axio hardware for full support of the Matrox
MPEG-2 I-frame HD codec. The Matrox DVCPRO HD codec and the “+ Alpha”
Matrox MPEG-2 I-frame codecs are available only on a system that has Axio
hardware.
Before you start rendering
Before you start rendering material to a Matrox .avi file, make the following
settings in your VFW program:
• Set the appropriate frame rate for the video format to which you are
rendering. For example, if you are rendering to PAL format, set the frame
rate to 25 fps.
• Set the frame size of your rendered material to full-screen:
$ 720 × 480 if you are rendering to NTSC or 486p format using the
DV/DVCAM, DVCPRO, DVCPRO50, or MPEG-2 I-frame codec (with or
without alpha).
$ 720 × 576 if you are rendering to PAL or 576p format using the
DV/DVCAM, DVCPRO, DVCPRO50, or MPEG-2 I-frame codec (with or
without alpha).
$ 720×486 or 720 × 576 if you are rendering to NTSC, 486p, or 576p format
using the Uncompressed SD or M-JPEG codec.
$ 1920×1080 or 1280×720 if you are rendering to 1080i/p or 720p format
using the Uncompressed HD or DVCPRO HD codec.
$ 1440×1080, 1920×1080, or 1280×720 if you are rendering to
1440×1080i/p, 1080i/p, or 720p format using the MPEG-2 I-frame HD
codec.
$ 480×270 or 320×180 if you are rendering to offline HD format. If you’re
rendering clips for use in an Adobe Premiere Pro project on Matrox Axio,
set the frame size to 480×270 for a 1440×1080i/p or 1080i/p project, or
320×180 for a 720p project. For more information, see “Using the Matrox
Offline HD codec” on page 260.
Axio Installation and User Guide.book Page 231 Monday, July 14, 2008 8:00 AM