Chapter 3 - Setting Defaults
Table
Option | Description |
|
|
Video Format | CIF and QCIF are video formats used in video |
| conferencing systems. Video Format specifies the |
| data rate (in number of frames per second) and |
| the resolution of each frame (number of lines in a |
| frame and the number of pixels in each line). |
| Video Format is enabled only in Video Switching |
| mode and when the Video Protocol is set to H.261 |
| or H.263. |
| CIF (Common Intermediate Format) - Each frame |
| contains 288 lines and 352 pixels per line. The |
| data rate is up to 30 frames per second (FPS) |
| QCIF (Quarter Common Intermediate Format) - |
| Each frame contains 144 lines and 176 pixels per |
| line (it is |
| This field is disabled if the Video Protocol field is |
| set to Auto. |
| • Using the H.261 protocol, you can select Auto, |
| QCIF, or CIF. |
| Select Auto to allow the system to select the |
| video format for the conference according to |
| the participants' capabilities and enable the |
| dynamic adjustment of the highest common |
| video resolution. In such a case, the system |
| will connect all the participants in CIF format. |
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