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Chapter 3, Defining Your Adobe Premiere Pro Settings
¦NoteThe higher the DC precision value that’s used to capture or render
your video, the more likely that the DC content will be increased at the expense
of the AC content in the encoded st ream. This may r esult in lowering the
overall quality of the compressed stream at a specified data rate.
6Under Zig Zag Type, select one of the following:
$Regular Sets the regular (default) zig zag scanning pattern of the AC
coefficient of the DCT block as defined in the ISO/IEC 13818-2 (figure
7-2) specification documentation.
$Alternate Sets an alternate zig zag scanning pattern of th e AC coefficient
of the DCT block as defined in the ISO/IEC 13818-2 (figure 7-3)
specification documentation. Use this setting when capturing or rendering
video at a high data rate (that is, at a data rate of about 25 Mb/sec for SD
video, or 90 Mb/sec or higher for HD video).
7Select the Force Frame-based DCT setting to render macroblocks as
frames rather than as fi elds. In some cases, g raphics will yield less artifacts if
this option is selected.
8Click OK to save your settings.