NComputing VSPACE L300 User Manual
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L300/L230/L130 User Manual
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L300 without having configured the many video setting. But Directshow does offer some added
performance benefits and using it will maximize the number of streams that can be obtained from a
single host, therefore we have provided what are mostly industry standard steps to configure
Directshow properly.
Microsoft's market leading Directshow API or by using NComputing Microsoft’s Directshow API is the
world’s most popular video playback API is therefore the most widely supported. Maximum
performance can be achieved with a standard install but to support a wider range of video file types
the administrator or user should:
Choose a video player that supports the Directshow API and configure it for Directshow
(Windows Media Player and Media Player Classic are installed by default)
Download the proper codecs for any video files they wish to play and enable them for
the player. Also setting the MIME type to the appropriate player will make sure the
association to the correct player is made
For playing .avi files, apply a filter to determine the true file encoder used.
Some video players that support Microsoft's API do not do so by default and configuration may be
needed. Proper setup of filters and codecs can assist in making this process simpler. The process
mentioned in the previous and next section will ensue that the maximum performance of the L300 can
be achieved across a wide range of video types.
Players that do not support Directshow or Direct JPEG should be avoided as streaming files that are
greater than ~480 x 360 will result in dropped frames, an overall reduction in video quality and greater
network bandwidth use.
Players, Codecs, and Filters
Windows Media Player is installed by default with any Microsoft OS and our vSpace installer now
includes Media Player Classic; therefore both players will be installed by default.
Download the proper codecs to support the video files types that are desired and enable them for the
player. A reference of common industry codec’s can be found at
but others can be used.
Optimally a filter may be needed to determine the true file type of a .avi file. The instructions for one
such filter, Matroska, are described in the L300 User’s Guide. Also setting the mine type to the
appropriate player will make sure the association to the correct player is made.
As NComputing determines the optimal settings for players and/or Codec’s we will post them as
Knowledge Base articles.
Browser-based video acceleration
In addition to the media types supported above in stand-alone media players, the L300 also supports
acceleration of browser-based embedded video including Flash video. Unlike stand-alone media
players with discreet graphics output, the graphics output of browser-based video is combined with
the other web page content. vSpace software detects when embedded video is being played in a