User guide

99
Defining your Capture settings
capture settings for an HD project, the Input Aspect Ratio will be set to
16:9.
8 Under Capture Format, select your desired capture format from the list. If
you’re capturing to an .avi file from a DV-1394 device, video will be
captured to native DV or HDV format (the
Capture Format will be set to
Native DV/HDV). If you’re capturing to an .m2v file, the Capture Format
will be set to
Matrox MPEG-2 IBP.
¦NoteThe formats to which you can capture clips depend on your project’s
video format and Matrox Axio hardware. For more information, see
“Supported video compression formats” on page 280.
$ Matrox DV/DVCAM Captures video to DV or DVCAM format.
$ Matrox DVCPRO Captures video to DVCPRO format.
$ Matrox DVCPRO50 Captures video to DVCPRO50 or D-9 format.
$ Matrox DVCPRO HD Captures video to DVCPRO HD format.
(Available only for HD projects with a format of 1080i or 720p.)
$ Matrox 8-bit Uncompressed Captures video to 8-bit uncompressed
format.
$ Matrox 10-bit Uncompressed Captures video to 10-bit uncompressed
format.
¦NoteOn Axio LE, Matrox 10-bit Uncompressed is the only capture
format available to capture analog or SDI video for a project that has a 10-bit
video processing format, and is not available for an 8-bit project. If you want
to capture to a format other than
Matrox 10-bit Uncompressed, you can
switch the video processing format (on the
General page) to 8-bit, and then
change back to 10-bit after you’ve completed your capture.
$ 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.
$ 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
or SDI video for a 1440×1080i project.
$ Matrox Offline HD Captures video to a proxy HD video format for
offline editing purposes.
9 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” on page 109, or “Selecting your
Axio Installation and User Guide.book Page 99 Monday, July 14, 2008 8:00 AM