User's Manual

Set the “Switch Channels” to decide how many input for each 878A video chip. Each 878A
chip can switch to 4 channel video inputs to share 30/25 frame per second. For more
information, please refer to “Chapter 2.2.3 Video Input Connectors” and “ Chapter 7.5.17
DVS300_SetVideoInput”.
6.3.3 Resolution
Set the video capturing resolution. Please refer to “Chapter 7.5.14 DVS300_GetResolution”
and “Chapter 7.5.15 DVS300_SetResolution”.
Notice: For the resolution of VGA or D1, the capture video will have the interlace effect on the
video image. In other words, there will be lines in the capture image especially when the
targeted image is moving. To eliminate this effect, user might need to set the resolution down
to 640x240 and use specific algorisms to compensate the image interlace between the
scanning even field image and odd field image. For CIF/320x240 resolution, there will be no
interlace effect.