User`s manual

does not take into consideration the fact that the image raster on televisions is overscanned.

So a portion of the image will be “cut-off” if it is placed at the very edges of the image

raster. DV2000 has a built-in safe title area generator to help you locate images in a location

that will be visible on consumer television sets.

Details of the UYC File Format

All data contained in a UYC file is organized into words (unsigned 16 bit) with the low

(least significant) byte first (Intel format). The first 16 entries (words) in a UYC file is

defined as the header section. The header section contains image information such as width,

height, etc. The remainder of the file is the image data section, and it contains three words of

image data for each pixel pair (see introduction). The image data is arranged into lines to

facilitate faster transfer to the DV2000. Each line of image data consists of a line of Y data,

a line of C data, and a line of alpha data.

Header Section

Word Description Value

0 Signature 0 0x5955 (“YU”)

1 Signature 1 0x2043 (“ C”)

2 Version 0x0100 (1.00)

3 X size (image width) 0-0x02D0 (0-720)

4 Y size (image height) 0-0x0200 (0-512)

5 Compression type 0-1

6 - 15 Reserved for future use (always zero)

Signature 0, 1 These two words are used by the DV2000 to indicate that this file is a UYC

file. The words are arranged so that when a UYC file is viewed with a hex

editor the first four bytes appear as “UYC<space>”.

Version This entry indicates the version of the UYC file.

X Size This entry indicates the width of the image in pixels. NOTE that this param-

eter MUST be an even number to conform to the pixel pair organization

described in the introduction.

Y Size This entry indicates the height of the image in pixels (or lines). NOTE that

the DV2000 can display up to 479 lines of image data in NTSC format and

up to 512 lines of image data in PAL format (see DV2000 Image Position-

ing).

Compression This entry indicates if the image data has been compressed and which type

of compression was used. Currently the only valid values are 0 for no

compression and 1 for RLE compression (see UYC RLE Compression).

Note that X size must be even to conform to word boundaries. Graphic file converters, when

converting a file with an odd width, should add a column of pixels to the right side of the

picture and set the alpha values for these pixels to 0 (transparent).

5. Files