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| >Video for Linux Two API Specification: Revision 0.24</TH |
| ></TR |
| ><TR |
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| ><H1 |
| ><A |
| NAME="V4L2-PIX-FMT-UYVY" |
| ></A |
| >V4L2_PIX_FMT_UYVY ('UYVY')</H1 |
| ><DIV |
| CLASS="REFNAMEDIV" |
| ><A |
| NAME="AEN4488" |
| ></A |
| ><H2 |
| >Name</H2 |
| ><CODE |
| CLASS="CONSTANT" |
| >V4L2_PIX_FMT_UYVY</CODE |
| > -- Variation of |
| <CODE |
| CLASS="CONSTANT" |
| >V4L2_PIX_FMT_YUYV</CODE |
| > with different order of samples |
| in memory</DIV |
| ><DIV |
| CLASS="REFSECT1" |
| ><A |
| NAME="AEN4493" |
| ></A |
| ><H2 |
| >Description</H2 |
| ><P |
| >In this format each four bytes is two pixels. Each four |
| bytes is two Y's, a Cb and a Cr. Each Y goes to one of the pixels, and |
| the Cb and Cr belong to both pixels. As you can see, the Cr and Cb |
| components have half the horizontal resolution of the Y |
| component.</P |
| ><DIV |
| CLASS="EXAMPLE" |
| ><A |
| NAME="AEN4496" |
| ></A |
| ><P |
| ><B |
| >Example 2-1. <CODE |
| CLASS="CONSTANT" |
| >V4L2_PIX_FMT_UYVY</CODE |
| > 4 × 4 |
| pixel image</B |
| ></P |
| ><DIV |
| CLASS="FORMALPARA" |
| ><P |
| ><B |
| >Byte Order. </B |
| >Each cell is one byte. |
| <DIV |
| CLASS="INFORMALTABLE" |
| ><P |
| ></P |
| ><A |
| NAME="AEN4502" |
| ></A |
| ><TABLE |
| BORDER="0" |
| FRAME="void" |
| CLASS="CALSTABLE" |
| ><COL |
| WIDTH="2*" |
| ALIGN="LEFT"><COL><COL><COL><COL><COL><COL><COL><COL><TBODY |
| VALIGN="TOP" |
| ><TR |
| ><TD |
| >start + 0:</TD |
| ><TD |
| >Cb<SUB |
| >00</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >00</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >00</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >01</SUB |
| ></TD |
| ><TD |
| >Cb<SUB |
| >01</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >02</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >01</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >03</SUB |
| ></TD |
| ></TR |
| ><TR |
| ><TD |
| >start + 8:</TD |
| ><TD |
| >Cb<SUB |
| >10</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >10</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >10</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >11</SUB |
| ></TD |
| ><TD |
| >Cb<SUB |
| >11</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >12</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >11</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >13</SUB |
| ></TD |
| ></TR |
| ><TR |
| ><TD |
| >start + 16:</TD |
| ><TD |
| >Cb<SUB |
| >20</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >20</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >20</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >21</SUB |
| ></TD |
| ><TD |
| >Cb<SUB |
| >21</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >22</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >21</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >23</SUB |
| ></TD |
| ></TR |
| ><TR |
| ><TD |
| >start + 24:</TD |
| ><TD |
| >Cb<SUB |
| >30</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >30</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >30</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >31</SUB |
| ></TD |
| ><TD |
| >Cb<SUB |
| >31</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >32</SUB |
| ></TD |
| ><TD |
| >Cr<SUB |
| >31</SUB |
| ></TD |
| ><TD |
| >Y'<SUB |
| >33</SUB |
| ></TD |
| ></TR |
| ></TBODY |
| ></TABLE |
| ><P |
| ></P |
| ></DIV |
| > |
| </P |
| ></DIV |
| ><DIV |
| CLASS="FORMALPARA" |
| ><P |
| ><B |
| >Color Sample Location. </B |
| > <DIV |
| CLASS="INFORMALTABLE" |
| ><P |
| ></P |
| ><A |
| NAME="AEN4581" |
| ></A |
| ><TABLE |
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| ><COL><COL><COL><COL><COL><COL><COL><TBODY |
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| ><TR |
| ><TD |
| > </TD |
| ><TD |
| >0</TD |
| ><TD |
| > </TD |
| ><TD |
| >1</TD |
| ><TD |
| > </TD |
| ><TD |
| >2</TD |
| ><TD |
| > </TD |
| ><TD |
| >3</TD |
| ></TR |
| ><TR |
| ><TD |
| >0</TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ><TD |
| > </TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ></TR |
| ><TR |
| ><TD |
| >1</TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ><TD |
| > </TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ></TR |
| ><TR |
| ><TD |
| >2</TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ><TD |
| > </TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ></TR |
| ><TR |
| ><TD |
| >3</TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ><TD |
| > </TD |
| ><TD |
| >Y</TD |
| ><TD |
| >C</TD |
| ><TD |
| >Y</TD |
| ></TR |
| ></TBODY |
| ></TABLE |
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