Osprey 240e/450e User Guide

 

 

 

Source Width

The Source Width control can be used to trim the black left and right

 

 

edges of an image.

 

 

 

 

Reference Size for

This part of the dialog box displays the results of more fundamental

 

Crop and Logo

settings made elsewhere in the dialog box.

 

Placement

 

 

 

 

 

525-Line (NTSC)

This control is for NTSC users. It has no effect for PAL and SECAM

 

Vertical Format

625-line video standards.

 

 

 

 

OK

Click OK to accept the settings.

 

 

 

 

Cancel

Click Cancel to reject the settings and close the window.

 

 

 

 

Apply

Click Apply to apply the settings.

 

 

 

 

Help

Click Help to access the user guide.

 

 

 

 

Horizontal Format

Figure 26. Horizontal Format

The Horizontal Format has the following controls.

Square Pixels

Use the Square Pixels setting for normal 4:3 video (Figure 26) that is viewed

via a computer monitor. This setting results in a square aspect ratio sampling

 

 

of the source video and a source image of 640 x 480 for 525-line standards and

 

768 x 576 for 625-line standards.

 

 

CCIR-601

Use the CCIR-601setting for 4:3 video that is viewed on a dedicated video

monitor. This setting results in a CCIR-601 aspect ratio sampling of the source

 

 

video. It results in a video input horizontal size of 720 pixels for both 525-line

 

and 625-line standards. This sizing is standard for dedicated monitors but the

 

resulting video appears horizontally stretched (525-line) or squeezed (625-line)

 

on a computer monitor.

 

It is more efficient to set the horizontal mode to match the size of the output.

 

For example, if your target video size is 640 x 480, using Square Pixel sizing in

 

PostProcessing Mode will avoid an unnecessary software scaling step in the

 

driver.

 

On some systems, for reasons external to this driver, 640 x 480 video renders

 

on screen a lot faster than 720 x 480 video – that is, the speed difference is a

 

lot more than the 9:8 ratio of numbers of pixels.

 

 

ViewCast

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Image 33
ViewCast 450E, 240E manual Horizontal Format, Square Pixels, CCIR-601