Apple QuickTime 7.2 - Manual (Page 45)

Chapter 4 Exporting Files with QuickTime Pro 45
Movies with higher frame rates show motion better but have larger file sizes. If you
choose a frame rate that’s lower than the movie’s current frame rate, frames will be
deleted. If you choose a number that’s higher than the movie’s current frame rate,
existing frames will be duplicated (not recommended, since it increases file size
without improving quality). When choosing a frame rate, use a simple fraction of
your current frame rate, such as 1/2, 1/3, and so on. For example, if your current
frame rate is 30 (29.97), use 15 or 10.
 Other options: Some compressors or codecs offer options specific to the codec.
After you select a compressor (codec), any special options appear.
Adding Special Effects and Filters to a QuickTime Movie
With QuickTime Pro, you can add special effects such as blur, emboss, and film noise to
a movie before you export it. You add special effects by using filters.
To set a filter for a movie:
1 In QuickTime Player, choose File > Export.
2 Choose “Movie to QuickTime Movie” from the Export pop-up menu.
3 Click Options, click Filter, and select the filter and settings you want to use.
The selected filter is applied to the entire movie.
Changing Image (Frame) Size
With QuickTime Pro, you can change the size of a movie’s video frame. For example, if
your movie will be viewed on a small screen (such as a mobile device), you can change
the movie’s dimensions to match the target device. You can experiment with making
the frame size smaller for a given data rate to get better encoding results.
To change the size of a movie’s video frame:
1 Choose File > Export.
2 Choose a file format from the Export pop-up menu.
3 Click Options.
4 In the Video area of the Movie Settings dialog, click Size and then choose an option:
 Use current size: This option (the default) keeps the exported movie’s image size the
same as your original source movie.
 Use custom size: When you choose this option, you can specify (in pixels) a height
and width for the exported movie’s image size. For best results, choose dimensions
smaller than your source movie, and keep the height-to-width ratio the same as the
source (so that objects don’t appear distorted).