TANDBERG D1389801 - Manual (Page 60)

TANDBERG Content Server User Manual
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4.4.7.8 Still Image
Use this writer if you want to extract still images from the extended video (H.239) stream for low-
bandwidth streaming. This writer can only be used in a template which specifies dual video.
One writer only is supported.
Still images of extended H.239 video are extracted at a specified interval:
Specified interval recommended minimum 10sec
Specified interval recommended maximum 60sec
4.4.8 Template creation tips
4.4.8.1 PIP
For a Picture in Picture layout choose the following in the Writer Information:
ƒ Profile filename – choose profile with (with SVGA, VGA or XGA, with PIP)
ƒ Source = Extended (H.239) video
ƒ Select PIP checkbox
ƒ To specify PIP location, select the required location from the dropdown menu
4.4.8.2 H.239 or Dual Stream
For H.239 (Dual Stream) video output choose the following in the Writer Information:
ƒ Normal video: writer with source normal
ƒ Extended video: writer with source extended
ƒ Profile with SVGA, VGA or XGA in the profile name, but not PIP
ƒ If still images required from extended video (for bandwidth under 384K), add Still image
writer
4.4.9 Using the Multicast Templates
If you intend to deliver your live streaming content as a multicast stream you will need to modify
one of the system Multicast templates and then use the Windows Media Services Multicast
Announcement Wizard to create an announcement. The announcement is a Windows Media
metafile that provides the player with the information required to receive the streaming content.