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1<refentry id="packed-yuv">
2 <refmeta>
3 <refentrytitle>Packed YUV formats</refentrytitle>
4 &manvol;
5 </refmeta>
6 <refnamediv>
7 <refname>Packed YUV formats</refname>
8 <refpurpose>Packed YUV formats</refpurpose>
9 </refnamediv>
10 <refsect1>
11 <title>Description</title>
12
13 <para>Similar to the packed RGB formats these formats store
14the Y, Cb and Cr component of each pixel in one 16 or 32 bit
15word.</para>
16
17 <table pgwide="1" frame="none">
18 <title>Packed YUV Image Formats</title>
19 <tgroup cols="37" align="center">
20 <colspec colname="id" align="left" />
21 <colspec colname="fourcc" />
22 <colspec colname="bit" />
23
24 <colspec colnum="4" colname="b07" align="center" />
25 <colspec colnum="5" colname="b06" align="center" />
26 <colspec colnum="6" colname="b05" align="center" />
27 <colspec colnum="7" colname="b04" align="center" />
28 <colspec colnum="8" colname="b03" align="center" />
29 <colspec colnum="9" colname="b02" align="center" />
30 <colspec colnum="10" colname="b01" align="center" />
31 <colspec colnum="11" colname="b00" align="center" />
32
33 <colspec colnum="13" colname="b17" align="center" />
34 <colspec colnum="14" colname="b16" align="center" />
35 <colspec colnum="15" colname="b15" align="center" />
36 <colspec colnum="16" colname="b14" align="center" />
37 <colspec colnum="17" colname="b13" align="center" />
38 <colspec colnum="18" colname="b12" align="center" />
39 <colspec colnum="19" colname="b11" align="center" />
40 <colspec colnum="20" colname="b10" align="center" />
41
42 <colspec colnum="22" colname="b27" align="center" />
43 <colspec colnum="23" colname="b26" align="center" />
44 <colspec colnum="24" colname="b25" align="center" />
45 <colspec colnum="25" colname="b24" align="center" />
46 <colspec colnum="26" colname="b23" align="center" />
47 <colspec colnum="27" colname="b22" align="center" />
48 <colspec colnum="28" colname="b21" align="center" />
49 <colspec colnum="29" colname="b20" align="center" />
50
51 <colspec colnum="31" colname="b37" align="center" />
52 <colspec colnum="32" colname="b36" align="center" />
53 <colspec colnum="33" colname="b35" align="center" />
54 <colspec colnum="34" colname="b34" align="center" />
55 <colspec colnum="35" colname="b33" align="center" />
56 <colspec colnum="36" colname="b32" align="center" />
57 <colspec colnum="37" colname="b31" align="center" />
58 <colspec colnum="38" colname="b30" align="center" />
59
60 <spanspec namest="b07" nameend="b00" spanname="b0" />
61 <spanspec namest="b17" nameend="b10" spanname="b1" />
62 <spanspec namest="b27" nameend="b20" spanname="b2" />
63 <spanspec namest="b37" nameend="b30" spanname="b3" />
64 <thead>
65 <row>
66 <entry>Identifier</entry>
67 <entry>Code</entry>
68 <entry>&nbsp;</entry>
69 <entry spanname="b0">Byte&nbsp;0 in memory</entry>
70 <entry spanname="b1">Byte&nbsp;1</entry>
71 <entry spanname="b2">Byte&nbsp;2</entry>
72 <entry spanname="b3">Byte&nbsp;3</entry>
73 </row>
74 <row>
75 <entry>&nbsp;</entry>
76 <entry>&nbsp;</entry>
77 <entry>Bit</entry>
78 <entry>7</entry>
79 <entry>6</entry>
80 <entry>5</entry>
81 <entry>4</entry>
82 <entry>3</entry>
83 <entry>2</entry>
84 <entry>1</entry>
85 <entry>0</entry>
86 <entry>&nbsp;</entry>
87 <entry>7</entry>
88 <entry>6</entry>
89 <entry>5</entry>
90 <entry>4</entry>
91 <entry>3</entry>
92 <entry>2</entry>
93 <entry>1</entry>
94 <entry>0</entry>
95 <entry>&nbsp;</entry>
96 <entry>7</entry>
97 <entry>6</entry>
98 <entry>5</entry>
99 <entry>4</entry>
100 <entry>3</entry>
101 <entry>2</entry>
102 <entry>1</entry>
103 <entry>0</entry>
104 <entry>&nbsp;</entry>
105 <entry>7</entry>
106 <entry>6</entry>
107 <entry>5</entry>
108 <entry>4</entry>
109 <entry>3</entry>
110 <entry>2</entry>
111 <entry>1</entry>
112 <entry>0</entry>
113 </row>
114 </thead>
115 <tbody valign="top">
116 <row id="V4L2-PIX-FMT-YUV444">
117 <entry><constant>V4L2_PIX_FMT_YUV444</constant></entry>
118 <entry>'Y444'</entry>
119 <entry></entry>
120 <entry>Cb<subscript>3</subscript></entry>
121 <entry>Cb<subscript>2</subscript></entry>
122 <entry>Cb<subscript>1</subscript></entry>
123 <entry>Cb<subscript>0</subscript></entry>
124 <entry>Cr<subscript>3</subscript></entry>
125 <entry>Cr<subscript>2</subscript></entry>
126 <entry>Cr<subscript>1</subscript></entry>
127 <entry>Cr<subscript>0</subscript></entry>
128 <entry></entry>
129 <entry>a<subscript>3</subscript></entry>
130 <entry>a<subscript>2</subscript></entry>
131 <entry>a<subscript>1</subscript></entry>
132 <entry>a<subscript>0</subscript></entry>
133 <entry>Y'<subscript>3</subscript></entry>
134 <entry>Y'<subscript>2</subscript></entry>
135 <entry>Y'<subscript>1</subscript></entry>
136 <entry>Y'<subscript>0</subscript></entry>
137 </row>
138
139 <row id="V4L2-PIX-FMT-YUV555">
140 <entry><constant>V4L2_PIX_FMT_YUV555</constant></entry>
141 <entry>'YUVO'</entry>
142 <entry></entry>
143 <entry>Cb<subscript>2</subscript></entry>
144 <entry>Cb<subscript>1</subscript></entry>
145 <entry>Cb<subscript>0</subscript></entry>
146 <entry>Cr<subscript>4</subscript></entry>
147 <entry>Cr<subscript>3</subscript></entry>
148 <entry>Cr<subscript>2</subscript></entry>
149 <entry>Cr<subscript>1</subscript></entry>
150 <entry>Cr<subscript>0</subscript></entry>
151 <entry></entry>
152 <entry>a</entry>
153 <entry>Y'<subscript>4</subscript></entry>
154 <entry>Y'<subscript>3</subscript></entry>
155 <entry>Y'<subscript>2</subscript></entry>
156 <entry>Y'<subscript>1</subscript></entry>
157 <entry>Y'<subscript>0</subscript></entry>
158 <entry>Cb<subscript>4</subscript></entry>
159 <entry>Cb<subscript>3</subscript></entry>
160 </row>
161
162 <row id="V4L2-PIX-FMT-YUV565">
163 <entry><constant>V4L2_PIX_FMT_YUV565</constant></entry>
164 <entry>'YUVP'</entry>
165 <entry></entry>
166 <entry>Cb<subscript>2</subscript></entry>
167 <entry>Cb<subscript>1</subscript></entry>
168 <entry>Cb<subscript>0</subscript></entry>
169 <entry>Cr<subscript>4</subscript></entry>
170 <entry>Cr<subscript>3</subscript></entry>
171 <entry>Cr<subscript>2</subscript></entry>
172 <entry>Cr<subscript>1</subscript></entry>
173 <entry>Cr<subscript>0</subscript></entry>
174 <entry></entry>
175 <entry>Y'<subscript>4</subscript></entry>
176 <entry>Y'<subscript>3</subscript></entry>
177 <entry>Y'<subscript>2</subscript></entry>
178 <entry>Y'<subscript>1</subscript></entry>
179 <entry>Y'<subscript>0</subscript></entry>
180 <entry>Cb<subscript>5</subscript></entry>
181 <entry>Cb<subscript>4</subscript></entry>
182 <entry>Cb<subscript>3</subscript></entry>
183 </row>
184
185 <row id="V4L2-PIX-FMT-YUV32">
186 <entry><constant>V4L2_PIX_FMT_YUV32</constant></entry>
187 <entry>'YUV4'</entry>
188 <entry></entry>
189 <entry>a<subscript>7</subscript></entry>
190 <entry>a<subscript>6</subscript></entry>
191 <entry>a<subscript>5</subscript></entry>
192 <entry>a<subscript>4</subscript></entry>
193 <entry>a<subscript>3</subscript></entry>
194 <entry>a<subscript>2</subscript></entry>
195 <entry>a<subscript>1</subscript></entry>
196 <entry>a<subscript>0</subscript></entry>
197 <entry></entry>
198 <entry>Y'<subscript>7</subscript></entry>
199 <entry>Y'<subscript>6</subscript></entry>
200 <entry>Y'<subscript>5</subscript></entry>
201 <entry>Y'<subscript>4</subscript></entry>
202 <entry>Y'<subscript>3</subscript></entry>
203 <entry>Y'<subscript>2</subscript></entry>
204 <entry>Y'<subscript>1</subscript></entry>
205 <entry>Y'<subscript>0</subscript></entry>
206 <entry></entry>
207 <entry>Cb<subscript>7</subscript></entry>
208 <entry>Cb<subscript>6</subscript></entry>
209 <entry>Cb<subscript>5</subscript></entry>
210 <entry>Cb<subscript>4</subscript></entry>
211 <entry>Cb<subscript>3</subscript></entry>
212 <entry>Cb<subscript>2</subscript></entry>
213 <entry>Cb<subscript>1</subscript></entry>
214 <entry>Cb<subscript>0</subscript></entry>
215 <entry></entry>
216 <entry>Cr<subscript>7</subscript></entry>
217 <entry>Cr<subscript>6</subscript></entry>
218 <entry>Cr<subscript>5</subscript></entry>
219 <entry>Cr<subscript>4</subscript></entry>
220 <entry>Cr<subscript>3</subscript></entry>
221 <entry>Cr<subscript>2</subscript></entry>
222 <entry>Cr<subscript>1</subscript></entry>
223 <entry>Cr<subscript>0</subscript></entry>
224 </row>
225 </tbody>
226 </tgroup>
227 </table>
228
229 <para>Bit 7 is the most significant bit. The value of a = alpha
230bits is undefined when reading from the driver, ignored when writing
231to the driver, except when alpha blending has been negotiated for a
232<link linkend="overlay">Video Overlay</link> or <link
233linkend="osd">Video Output Overlay</link>.</para>
234
235 </refsect1>
236 </refentry>
237
238 <!--
239Local Variables:
240mode: sgml
241sgml-parent-document: "pixfmt.sgml"
242indent-tabs-mode: nil
243End:
244 -->
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-28 14:33:29 -0500