ViewCast Niagara 4100, Руководство пользователя

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Niagara 4100 User Guide
ViewCast 59
Video tab
Flash adds some additional frame and bit rate controls. The frame rate changes the frames per second
that the video will be encoded. The bit rate settings pertain to the amount of data per second the audio
and video are captured.
Figure 71. Video tab
To configure video input settings:
1. In the
Source field, click a device from the drop-down list.

Osprey-700 HD Video Device 1

Disabled
Note: Because the Niagara 4100 is a single-channel encoder, you can only connect and stream
one audio and video source at any given time. However, you can encode the same audio
and video at multiple data rates and multiple formats to provide the best user experience
for different viewing audiences.
2. In the
Input field, the video input is SerialDigital .
3. The
Proportions field setting is Standard (square pixels for VGA monitor).
4. In the
Size field, click the pixel size of the encoded video from the drop-down list.

HD 1280x720

CIF for video scaled from full-size to ¼ size

QCIF for video scaled from full-size to ¼ size

Custom
You can also specify a custom size for your video. This customization is useful when you are
capturing video to be played on a mobile video-device that requires a non-standard size for
compatibility.
When you click
Custom , two additional fields appear so you can enter the exact size you want
the resulting video to be (Figure 72).