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Hd image data file format – Grass Valley Switcher Products User Manual

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Switcher Products — Protocols Manual

139

HD Image Data File Format

No padding occurs at the end of the line. The only padding occurs at the
end of field 2 for a 525/60 1/4 size image. That field is padded to the same
length as field 1 (122 lines) by adding one line.

Refer to

Table 118 on page 137

for specific fenced region sizes.

HD Image Data File Format

Fourteen 10-bit video (or key) pixels (28 values, 14 Y plus 14 half band-
width Cb and Cr) are packed into a pixel group consisting of nine 32-bit
values as shown in

Table 121

.

Table 121. HD Still Store Image Data Pixel Group

Table

Table 122

shows the amount of information written to the data file per

frame.

Table 122. HD Format Data Amounts

Image

Format

Fence

Size

Pixels

per Line

Bytes

per Line

Lines per Frame

(Field 1) (Field 2)

Pixel Groups

Per Line

Total Bytes

per Frame

1080i

(Interlaced)

Full

1920

4968

540

540

138

5,365,440

1 / 4

1008

2592

270

270

72

1,399,680

1 / 9

672

1728

180

180

48

622,080

1 / 25

392

1008

108

108

28

217,728

720p

(progressive)

Full

1280

3312

720

92

2,384,640

1 / 4

672

1728

360

48

622,080

1 / 9

448

1152

240

32

276,480

1 / 25

266

684

144

19

98,496

DWORD 4

DWORD 3

DWORD 2

DWORD 0

DWORD 1

DWORD 8

287

Unused

8063_04_07_r0

Y 14

Cr 13

Y 13

280 279

270 269

260 259

256

DWORD 7

DWORD 6

DWORD 5

255

Y 13

Cb 13

Y 12

Cr 11

250 249

240 239

230 229

224

223

Cr 11

Y 11

Cb 11

Y 10

220 219

210 209

200 199

192

191

Y 10

Cr 9

Y 9

Cb 9

190 189

180 179

170 169

160

159

Y 8

Cr 7

Y 7

Cb 7

150 149

140 139

130 129 128

127

Cb 7

Y 6

Cr 5

Y 5

120 119

110 109

100 99

96

95

Y 5

Cb 5

Y 4

Cr 3

90 89

80 79

70 69

64

63

Cr 3

Y 3

Cb 3

Y 2

60 59

50 49

40 39

32

31

Y 2

Cr 1

Y 1

Cb 1

30 29

20 19

10 9

0