ViewCast Osprey PCI, User Manual

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Osprey PCI User Guide
ViewCast 31
16:9 Wide – This setting is for 1.85:1 anamorphic video such as DVD content and PAL widescreen
content. The output video size will be 852 x 480 for 525-line standards, and 1024 x 576 for 625-line
standards. In order to actually see output of this size, you have to also select this size in your
application.
Use WideScreen Signal (WSS) – This setting enables automatic sidebars and letterboxing when the
input video aspect ratio does not match the output aspect ratio. If the aspect ratio of your content is
subject to changing between 16:9 and 4:3, it will be useful to the enable this control.
WSS is a line of the vertical blanking interval (VBI) that encodes the aspect ratio of the video. It is
normally line 20 of 525-line video and line 22 of 625-line video. It is generated by newer DVD
players, and in present in PAL broadcast content.
The Use WideScreen Signal (WSS) control is useful for both 4:3 and 16:9 input formats, and for both
4:3 and 16:9 output formats. When selected, it has the following effects:

4:3 video on a 4:3 window shows without sidebars or letterboxing

4:3 video on a 16:9 window shows with sidebars

16:9 video on a 16:9 window shows without sidebars or letterboxing

16:9 video on a 4:3 window shows with letterboxing.
Horizontal Delay
Figure 20. Horizontal Delay
The Horizontal Delay control moves the video horizontally in the capture or preview frame. Video
devices differ in their timing characteristics, so some devices may need different adjustments from
other devices. Adjust this control if you are seeing a black line to the left or right of the video. Use
the left and right arrow buttons to move the video to the left or right. Click [0] to restore the default
zero setting. The allowed range is -15 to 15. With uncropped video, the video will shift only on every
second increment 0, 2, 4….