Macromedia flash 8-using flash video encoder User Manual

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Selecting advanced video encoding settings
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6.
Use the playback head to locate a specific point in the video where you want to embed a 
cue point. For greater precision, you can use the left and right arrow keys to move the 
playback head in millisecond increments. To do this, select the playback head, and then 
use the arrow keys to further adjust its position.
To locate a specific time, use the cursor to move the playback head to the point in the 
video where you want to embed a cue point. The video preview window lets you visually 
identify points in the video at which to insert a cue point. You can also use the elapsed 
time counter (located beneath the video preview window) to locate specific points in time 
at which to embed cue points.
7.
When the playback head is positioned at a place in the video where you want to embed a 
cue point, click the (+) button on the left side of the Cue Points tab.
Flash Video Encoder embeds a cue point at the time indicated by the counter beneath the 
video preview window, and populates the cue point list with a placeholder for the name of 
the new cue point and the elapsed time at which the cue point is located (this is the time 
during playback when the event will be triggered), and displays a pop-up menu that lets 
you select the type of cue point to embed.
A cue point marker is displayed on the slider control at the point where the cue point was 
embedded. You can use the cue point marker to further adjust the placement of the cue 
point. For greater precision, you can use the left and right arrow keys to move the cue 
point marker in millisecond increments. To do this, select the cue point marker, and then 
use the arrow keys to further adjust its position.
8.
Specify the type of cue point you want to embed. You can embed either a navigation or 
event cue point.
Event cue points are used to trigger ActionScript methods when the cue point is 
reached, and let you synchronize the video playback to other events within the Flash 
presentation.
Navigation cue points are used for navigation and seeking, and to trigger ActionScript 
methods when the cue point is reached. Embedding a navigation cue point inserts a 
keyframe at that point in the video clip to enable viewers to seek to that place in the 
video.
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Only one cue point can be embedded at a specified time code within the video clip.
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Adding additional keyframes can lower the overall quality of a video clip. For this 
reason, navigation cue points should only be used when users will need to seek 
to a particular place within the video. For more information on keyframes, and 
their effect on video playback, see 
.
000_FLVEncoder.book  Page 23  Friday, August 12, 2005  3:50 PM