MACROMEDIA FLASH MX 2004-USING FLASH Use Manual page 194

To export an FLV file from a supported application:
With the video open in the video-editing application, select File > Export > QuickTime.
1.
In the Export dialog box, under Export, select Macromedia Flash Video (FLV), and
2.
click Options.
In the Flash Video (FLV) Exporter dialog box, select an Encoding Method from the
3.
pop-up menu:
Baseline (1 Pass)
compresses each frame as it is loaded, and estimates the bit rate for each frame. The resulting
file size is closely related to the value entered in the Limit Data Rate To text box because the
data rate can not vary on a frame-by-frame basis, even if a different amount of data is needed.
Better (1 Pass VBR)
(VBR). VBR keeps the average bit rate at or below the target data rate specified for the video.
This lets the data rate fluctuate based on the content in the clip. If VBR can encode the frame
with less data, it will. The resulting file looks similar to one created with the Baseline option,
but the file size can be smaller.
Screen Recording Codec
compression optimizes content that depicts computer screens; for example, an instructional
video that shows a pointer moving across a computer screen.When Screen Recording Codec is
selected, Quality, Limit Data Rate To, and Motion Estimation are dimmed.
For Frames per Second, enter a value or select a frame rate from the pop-up menu. To maintain
4.
the temporal quality of the original source clip, use the same frame rate as that of the original
source. If you are dropping the frame rate to lower the data rate, the frames per second should
be an evenly divisible number from the source frame rate (that is, one-half or one-quarter the
original rate). The pop-up menu next to the Frames per Second text box contains commonly
used frame rates.
194 Chapter 10: Working with Video
is the most basic method of encoding. It reads through the file once,
is the same as Baseline but encodes using Variable Bitrate Encoding
is for recording screen operations with a lossless compression. This