Commit | Line | Data |
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8e080c2e MCC |
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 | |
14 | the Y, Cb and Cr component of each pixel in one 16 or 32 bit | |
15 | word.</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> </entry> | |
69 | <entry spanname="b0">Byte 0 in memory</entry> | |
70 | <entry spanname="b1">Byte 1</entry> | |
71 | <entry spanname="b2">Byte 2</entry> | |
72 | <entry spanname="b3">Byte 3</entry> | |
73 | </row> | |
74 | <row> | |
75 | <entry> </entry> | |
76 | <entry> </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> </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> </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> </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 | |
230 | bits is undefined when reading from the driver, ignored when writing | |
231 | to the driver, except when alpha blending has been negotiated for a | |
232 | <link linkend="overlay">Video Overlay</link> or <link | |
233 | linkend="osd">Video Output Overlay</link>.</para> | |
234 | ||
235 | </refsect1> | |
236 | </refentry> | |
237 | ||
238 | <!-- | |
239 | Local Variables: | |
240 | mode: sgml | |
241 | sgml-parent-document: "pixfmt.sgml" | |
242 | indent-tabs-mode: nil | |
243 | End: | |
244 | --> |