Extra Information

Chapter 9: Flash Options and Settings
64 ViewCast
Tab Description
device in the
A
udio field for live encodin
g
.
• The system lists all known video and audio devices in drop-down menus.
File Encoding
• Select the File Conversion/File Transcode radio button to encode a
previously recorded file (such as .avi files) into streaming format.
• Click the box to right of Input File field to browse for file name to insert.
• Remember the file name applies to the encoder system and not the system
currently running SCX Explorer.
IMPORTANT! When Niagara SCX and SCX Explorer reside on different computers,
always start your browse search for files at My Network Places. Then work down
or enter the entire file pathname beginning with the system name (such as
\\fileserver\c\videos).
If you simply enter a file name, you may inadvertently browse your local computer
when the media file resides on the remote computer.
Video Settings
• Control the capture properties for the selected video device.
• The Input field lists all input connectors available for the capture device.
• The Signal field lists the various video standards the capture device
supports.
• You can adjust capture properties such as proportion, video size, and
width/height using the provided fields.
• Adjust additional capture properties of brightness, contrast, saturation,
and hue individually for each input source using the sliding bars.
• When making such adjustments, verify your adjustments apply to the
selected input.
• Otherwise, your adjustments apply to all the input sources listed.
• These capture properties remain available regardless of whether the
encoder starts or remains idle (Figure 109).
Figure 109. Flash Video
Settings
Gamma
Corrections
• Adjust the gamma of the incoming video.
• Gamma refers to the response curve of video cameras/CRTs.
• When you capture video with a camera, the camera response remains
deliberately nonlinear – it boosts low lumen values and compresses high
lumen values – based on two reasons:
(1) It increases the effective bandwidth in the low lumen range, where you
need it, at the expense of the high lumen range, where you need it less.