Chapter 7: Appendix

105

SVRT: When Can I Use it?

SVRT can be applied to video clips in the MPEG-1, MPEG-2, H.264 (Ultra version 
only) and DV-AVI (Type I) formats. In the following conditions, clips (or portions of 
clips) do not require rendering during production, and SVRT can therefore be 
applied:

•

The frame rate, frame size, and file format are the same as those of the 
destination production profile.

•

The bitrate is similar to that of the destination production profile.

•

The TV format is the same as that of the destination production profile. For 
more information, see "Setting Video Clip Interlacing Format" on page 52.

If all of the above conditions are met, SVRT can be used. Any clips that do not meet 
the above criteria are fully rendered without SVRT.
In the following conditions, clips (or portions of clips) must be rendered during 
production, and SVRT can therefore 

not

 be applied:

•

Adding a title or transition effect

•

Modifying the color of a video clip

•

Audio profile does not match destination production profile

•

Modifying the volume of an audio clip

•

Merging two video clips (clips within 2 seconds before or after the merged 
clips will be rendered)

•

Splitting a video clip (clips within 2 seconds before or after the split will be 
rendered)

•

Trimming a video clip (clips within 2 seconds before or after the trimmed clip 
will be rendered)

•

If the total duration of the production is less than one minute and any portion 
of the video requires rendering, the entire production will be rendered for 
efficiency reasons.

Licenses and Copyrights

This document contains the CyberLink PowerDirector licensing and copyright 
information for Dolby Laboratories only. For the remaining list of applicable 
licensing and copyright information for CyberLink PowerDirector, please consult 
the Readme file.