1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"> 2<HTML 3><HEAD 4><TITLE 5>V4L2_PIX_FMT_GREY ('GREY')</TITLE 6><META 7NAME="GENERATOR" 8CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK 9REL="HOME" 10TITLE="Video for Linux Two API Specification" 11HREF="book1.htm"><LINK 12REL="UP" 13TITLE="YUV Formats" 14HREF="x3891.htm"><LINK 15REL="PREVIOUS" 16TITLE="Packed YUV formats" 17HREF="r3896.htm"><LINK 18REL="NEXT" 19TITLE="V4L2_PIX_FMT_Y16 ('Y16 ')" 20HREF="r4246.htm"></HEAD 21><BODY 22CLASS="REFENTRY" 23BGCOLOR="#FFFFFF" 24TEXT="#000000" 25LINK="#0000FF" 26VLINK="#840084" 27ALINK="#0000FF" 28><DIV 29CLASS="NAVHEADER" 30><TABLE 31SUMMARY="Header navigation table" 32WIDTH="100%" 33BORDER="0" 34CELLPADDING="0" 35CELLSPACING="0" 36><TR 37><TH 38COLSPAN="3" 39ALIGN="center" 40>Video for Linux Two API Specification: Revision 0.24</TH 41></TR 42><TR 43><TD 44WIDTH="10%" 45ALIGN="left" 46VALIGN="bottom" 47><A 48HREF="r3896.htm" 49ACCESSKEY="P" 50>Prev</A 51></TD 52><TD 53WIDTH="80%" 54ALIGN="center" 55VALIGN="bottom" 56></TD 57><TD 58WIDTH="10%" 59ALIGN="right" 60VALIGN="bottom" 61><A 62HREF="r4246.htm" 63ACCESSKEY="N" 64>Next</A 65></TD 66></TR 67></TABLE 68><HR 69ALIGN="LEFT" 70WIDTH="100%"></DIV 71><H1 72><A 73NAME="V4L2-PIX-FMT-GREY" 74></A 75>V4L2_PIX_FMT_GREY ('GREY')</H1 76><DIV 77CLASS="REFNAMEDIV" 78><A 79NAME="AEN4189" 80></A 81><H2 82>Name</H2 83><CODE 84CLASS="CONSTANT" 85>V4L2_PIX_FMT_GREY</CODE 86> -- Grey-scale image</DIV 87><DIV 88CLASS="REFSECT1" 89><A 90NAME="AEN4193" 91></A 92><H2 93>Description</H2 94><P 95>This is a grey-scale image. It is really a degenerate 96Y'CbCr format which simply contains no Cb or Cr data.</P 97><DIV 98CLASS="EXAMPLE" 99><A 100NAME="AEN4196" 101></A 102><P 103><B 104>Example 2-1. <CODE 105CLASS="CONSTANT" 106>V4L2_PIX_FMT_GREY</CODE 107> 4 × 4 108pixel image</B 109></P 110><DIV 111CLASS="FORMALPARA" 112><P 113><B 114>Byte Order. </B 115>Each cell is one byte. 116 <DIV 117CLASS="INFORMALTABLE" 118><P 119></P 120><A 121NAME="AEN4202" 122></A 123><TABLE 124BORDER="0" 125FRAME="void" 126CLASS="CALSTABLE" 127><COL 128WIDTH="2*" 129ALIGN="LEFT"><COL><COL><COL><COL><TBODY 130VALIGN="TOP" 131><TR 132><TD 133>start + 0:</TD 134><TD 135>Y'<SUB 136>00</SUB 137></TD 138><TD 139>Y'<SUB 140>01</SUB 141></TD 142><TD 143>Y'<SUB 144>02</SUB 145></TD 146><TD 147>Y'<SUB 148>03</SUB 149></TD 150></TR 151><TR 152><TD 153>start + 4:</TD 154><TD 155>Y'<SUB 156>10</SUB 157></TD 158><TD 159>Y'<SUB 160>11</SUB 161></TD 162><TD 163>Y'<SUB 164>12</SUB 165></TD 166><TD 167>Y'<SUB 168>13</SUB 169></TD 170></TR 171><TR 172><TD 173>start + 8:</TD 174><TD 175>Y'<SUB 176>20</SUB 177></TD 178><TD 179>Y'<SUB 180>21</SUB 181></TD 182><TD 183>Y'<SUB 184>22</SUB 185></TD 186><TD 187>Y'<SUB 188>23</SUB 189></TD 190></TR 191><TR 192><TD 193>start + 12:</TD 194><TD 195>Y'<SUB 196>30</SUB 197></TD 198><TD 199>Y'<SUB 200>31</SUB 201></TD 202><TD 203>Y'<SUB 204>32</SUB 205></TD 206><TD 207>Y'<SUB 208>33</SUB 209></TD 210></TR 211></TBODY 212></TABLE 213><P 214></P 215></DIV 216> 217 </P 218></DIV 219></DIV 220></DIV 221><DIV 222CLASS="NAVFOOTER" 223><HR 224ALIGN="LEFT" 225WIDTH="100%"><TABLE 226SUMMARY="Footer navigation table" 227WIDTH="100%" 228BORDER="0" 229CELLPADDING="0" 230CELLSPACING="0" 231><TR 232><TD 233WIDTH="33%" 234ALIGN="left" 235VALIGN="top" 236><A 237HREF="r3896.htm" 238ACCESSKEY="P" 239>Prev</A 240></TD 241><TD 242WIDTH="34%" 243ALIGN="center" 244VALIGN="top" 245><A 246HREF="book1.htm" 247ACCESSKEY="H" 248>Home</A 249></TD 250><TD 251WIDTH="33%" 252ALIGN="right" 253VALIGN="top" 254><A 255HREF="r4246.htm" 256ACCESSKEY="N" 257>Next</A 258></TD 259></TR 260><TR 261><TD 262WIDTH="33%" 263ALIGN="left" 264VALIGN="top" 265>Packed YUV formats</TD 266><TD 267WIDTH="34%" 268ALIGN="center" 269VALIGN="top" 270><A 271HREF="x3891.htm" 272ACCESSKEY="U" 273>Up</A 274></TD 275><TD 276WIDTH="33%" 277ALIGN="right" 278VALIGN="top" 279>V4L2_PIX_FMT_Y16 ('Y16 ')</TD 280></TR 281></TABLE 282></DIV 283></BODY 284></HTML 285> 286