| Mauro Carvalho Chehab | 8e080c2 | 2009-09-13 22:16:04 -0300 | [diff] [blame] | 1 | <refentry id="packed-rgb"> |
| 2 | <refmeta> |
| 3 | <refentrytitle>Packed RGB formats</refentrytitle> |
| 4 | &manvol; |
| 5 | </refmeta> |
| 6 | <refnamediv> |
| 7 | <refname>Packed RGB formats</refname> |
| 8 | <refpurpose>Packed RGB formats</refpurpose> |
| 9 | </refnamediv> |
| 10 | <refsect1> |
| 11 | <title>Description</title> |
| 12 | |
| 13 | <para>These formats are designed to match the pixel formats of |
| 14 | typical PC graphics frame buffers. They occupy 8, 16, 24 or 32 bits |
| 15 | per pixel. These are all packed-pixel formats, meaning all the data |
| 16 | for a pixel lie next to each other in memory.</para> |
| 17 | |
| 18 | <para>When one of these formats is used, drivers shall report the |
| 19 | colorspace <constant>V4L2_COLORSPACE_SRGB</constant>.</para> |
| 20 | |
| 21 | <table pgwide="1" frame="none" id="rgb-formats"> |
| 22 | <title>Packed RGB Image Formats</title> |
| 23 | <tgroup cols="37" align="center"> |
| 24 | <colspec colname="id" align="left" /> |
| 25 | <colspec colname="fourcc" /> |
| 26 | <colspec colname="bit" /> |
| 27 | |
| 28 | <colspec colnum="4" colname="b07" align="center" /> |
| 29 | <colspec colnum="5" colname="b06" align="center" /> |
| 30 | <colspec colnum="6" colname="b05" align="center" /> |
| 31 | <colspec colnum="7" colname="b04" align="center" /> |
| 32 | <colspec colnum="8" colname="b03" align="center" /> |
| 33 | <colspec colnum="9" colname="b02" align="center" /> |
| 34 | <colspec colnum="10" colname="b01" align="center" /> |
| 35 | <colspec colnum="11" colname="b00" align="center" /> |
| 36 | |
| 37 | <colspec colnum="13" colname="b17" align="center" /> |
| 38 | <colspec colnum="14" colname="b16" align="center" /> |
| 39 | <colspec colnum="15" colname="b15" align="center" /> |
| 40 | <colspec colnum="16" colname="b14" align="center" /> |
| 41 | <colspec colnum="17" colname="b13" align="center" /> |
| 42 | <colspec colnum="18" colname="b12" align="center" /> |
| 43 | <colspec colnum="19" colname="b11" align="center" /> |
| 44 | <colspec colnum="20" colname="b10" align="center" /> |
| 45 | |
| 46 | <colspec colnum="22" colname="b27" align="center" /> |
| 47 | <colspec colnum="23" colname="b26" align="center" /> |
| 48 | <colspec colnum="24" colname="b25" align="center" /> |
| 49 | <colspec colnum="25" colname="b24" align="center" /> |
| 50 | <colspec colnum="26" colname="b23" align="center" /> |
| 51 | <colspec colnum="27" colname="b22" align="center" /> |
| 52 | <colspec colnum="28" colname="b21" align="center" /> |
| 53 | <colspec colnum="29" colname="b20" align="center" /> |
| 54 | |
| 55 | <colspec colnum="31" colname="b37" align="center" /> |
| 56 | <colspec colnum="32" colname="b36" align="center" /> |
| 57 | <colspec colnum="33" colname="b35" align="center" /> |
| 58 | <colspec colnum="34" colname="b34" align="center" /> |
| 59 | <colspec colnum="35" colname="b33" align="center" /> |
| 60 | <colspec colnum="36" colname="b32" align="center" /> |
| 61 | <colspec colnum="37" colname="b31" align="center" /> |
| 62 | <colspec colnum="38" colname="b30" align="center" /> |
| 63 | |
| 64 | <spanspec namest="b07" nameend="b00" spanname="b0" /> |
| 65 | <spanspec namest="b17" nameend="b10" spanname="b1" /> |
| 66 | <spanspec namest="b27" nameend="b20" spanname="b2" /> |
| 67 | <spanspec namest="b37" nameend="b30" spanname="b3" /> |
| 68 | <thead> |
| 69 | <row> |
| 70 | <entry>Identifier</entry> |
| 71 | <entry>Code</entry> |
| 72 | <entry> </entry> |
| 73 | <entry spanname="b0">Byte 0 in memory</entry> |
| 74 | <entry spanname="b1">Byte 1</entry> |
| 75 | <entry spanname="b2">Byte 2</entry> |
| 76 | <entry spanname="b3">Byte 3</entry> |
| 77 | </row> |
| 78 | <row> |
| 79 | <entry> </entry> |
| 80 | <entry> </entry> |
| 81 | <entry>Bit</entry> |
| 82 | <entry>7</entry> |
| 83 | <entry>6</entry> |
| 84 | <entry>5</entry> |
| 85 | <entry>4</entry> |
| 86 | <entry>3</entry> |
| 87 | <entry>2</entry> |
| 88 | <entry>1</entry> |
| 89 | <entry>0</entry> |
| 90 | <entry> </entry> |
| 91 | <entry>7</entry> |
| 92 | <entry>6</entry> |
| 93 | <entry>5</entry> |
| 94 | <entry>4</entry> |
| 95 | <entry>3</entry> |
| 96 | <entry>2</entry> |
| 97 | <entry>1</entry> |
| 98 | <entry>0</entry> |
| 99 | <entry> </entry> |
| 100 | <entry>7</entry> |
| 101 | <entry>6</entry> |
| 102 | <entry>5</entry> |
| 103 | <entry>4</entry> |
| 104 | <entry>3</entry> |
| 105 | <entry>2</entry> |
| 106 | <entry>1</entry> |
| 107 | <entry>0</entry> |
| 108 | <entry> </entry> |
| 109 | <entry>7</entry> |
| 110 | <entry>6</entry> |
| 111 | <entry>5</entry> |
| 112 | <entry>4</entry> |
| 113 | <entry>3</entry> |
| 114 | <entry>2</entry> |
| 115 | <entry>1</entry> |
| 116 | <entry>0</entry> |
| 117 | </row> |
| 118 | </thead> |
| 119 | <tbody valign="top"> |
| 120 | <row id="V4L2-PIX-FMT-RGB332"> |
| 121 | <entry><constant>V4L2_PIX_FMT_RGB332</constant></entry> |
| 122 | <entry>'RGB1'</entry> |
| 123 | <entry></entry> |
| 124 | <entry>b<subscript>1</subscript></entry> |
| 125 | <entry>b<subscript>0</subscript></entry> |
| 126 | <entry>g<subscript>2</subscript></entry> |
| 127 | <entry>g<subscript>1</subscript></entry> |
| 128 | <entry>g<subscript>0</subscript></entry> |
| 129 | <entry>r<subscript>2</subscript></entry> |
| 130 | <entry>r<subscript>1</subscript></entry> |
| 131 | <entry>r<subscript>0</subscript></entry> |
| 132 | </row> |
| 133 | <row id="V4L2-PIX-FMT-RGB444"> |
| 134 | <entry><constant>V4L2_PIX_FMT_RGB444</constant></entry> |
| 135 | <entry>'R444'</entry> |
| 136 | <entry></entry> |
| 137 | <entry>g<subscript>3</subscript></entry> |
| 138 | <entry>g<subscript>2</subscript></entry> |
| 139 | <entry>g<subscript>1</subscript></entry> |
| 140 | <entry>g<subscript>0</subscript></entry> |
| 141 | <entry>b<subscript>3</subscript></entry> |
| 142 | <entry>b<subscript>2</subscript></entry> |
| 143 | <entry>b<subscript>1</subscript></entry> |
| 144 | <entry>b<subscript>0</subscript></entry> |
| 145 | <entry></entry> |
| 146 | <entry>a<subscript>3</subscript></entry> |
| 147 | <entry>a<subscript>2</subscript></entry> |
| 148 | <entry>a<subscript>1</subscript></entry> |
| 149 | <entry>a<subscript>0</subscript></entry> |
| 150 | <entry>r<subscript>3</subscript></entry> |
| 151 | <entry>r<subscript>2</subscript></entry> |
| 152 | <entry>r<subscript>1</subscript></entry> |
| 153 | <entry>r<subscript>0</subscript></entry> |
| 154 | </row> |
| 155 | <row id="V4L2-PIX-FMT-RGB555"> |
| 156 | <entry><constant>V4L2_PIX_FMT_RGB555</constant></entry> |
| 157 | <entry>'RGBO'</entry> |
| 158 | <entry></entry> |
| 159 | <entry>g<subscript>2</subscript></entry> |
| 160 | <entry>g<subscript>1</subscript></entry> |
| 161 | <entry>g<subscript>0</subscript></entry> |
| 162 | <entry>r<subscript>4</subscript></entry> |
| 163 | <entry>r<subscript>3</subscript></entry> |
| 164 | <entry>r<subscript>2</subscript></entry> |
| 165 | <entry>r<subscript>1</subscript></entry> |
| 166 | <entry>r<subscript>0</subscript></entry> |
| 167 | <entry></entry> |
| 168 | <entry>a</entry> |
| 169 | <entry>b<subscript>4</subscript></entry> |
| 170 | <entry>b<subscript>3</subscript></entry> |
| 171 | <entry>b<subscript>2</subscript></entry> |
| 172 | <entry>b<subscript>1</subscript></entry> |
| 173 | <entry>b<subscript>0</subscript></entry> |
| 174 | <entry>g<subscript>4</subscript></entry> |
| 175 | <entry>g<subscript>3</subscript></entry> |
| 176 | </row> |
| 177 | <row id="V4L2-PIX-FMT-RGB565"> |
| 178 | <entry><constant>V4L2_PIX_FMT_RGB565</constant></entry> |
| 179 | <entry>'RGBP'</entry> |
| 180 | <entry></entry> |
| 181 | <entry>g<subscript>2</subscript></entry> |
| 182 | <entry>g<subscript>1</subscript></entry> |
| 183 | <entry>g<subscript>0</subscript></entry> |
| 184 | <entry>r<subscript>4</subscript></entry> |
| 185 | <entry>r<subscript>3</subscript></entry> |
| 186 | <entry>r<subscript>2</subscript></entry> |
| 187 | <entry>r<subscript>1</subscript></entry> |
| 188 | <entry>r<subscript>0</subscript></entry> |
| 189 | <entry></entry> |
| 190 | <entry>b<subscript>4</subscript></entry> |
| 191 | <entry>b<subscript>3</subscript></entry> |
| 192 | <entry>b<subscript>2</subscript></entry> |
| 193 | <entry>b<subscript>1</subscript></entry> |
| 194 | <entry>b<subscript>0</subscript></entry> |
| 195 | <entry>g<subscript>5</subscript></entry> |
| 196 | <entry>g<subscript>4</subscript></entry> |
| 197 | <entry>g<subscript>3</subscript></entry> |
| 198 | </row> |
| 199 | <row id="V4L2-PIX-FMT-RGB555X"> |
| 200 | <entry><constant>V4L2_PIX_FMT_RGB555X</constant></entry> |
| 201 | <entry>'RGBQ'</entry> |
| 202 | <entry></entry> |
| 203 | <entry>a</entry> |
| 204 | <entry>b<subscript>4</subscript></entry> |
| 205 | <entry>b<subscript>3</subscript></entry> |
| 206 | <entry>b<subscript>2</subscript></entry> |
| 207 | <entry>b<subscript>1</subscript></entry> |
| 208 | <entry>b<subscript>0</subscript></entry> |
| 209 | <entry>g<subscript>4</subscript></entry> |
| 210 | <entry>g<subscript>3</subscript></entry> |
| 211 | <entry></entry> |
| 212 | <entry>g<subscript>2</subscript></entry> |
| 213 | <entry>g<subscript>1</subscript></entry> |
| 214 | <entry>g<subscript>0</subscript></entry> |
| 215 | <entry>r<subscript>4</subscript></entry> |
| 216 | <entry>r<subscript>3</subscript></entry> |
| 217 | <entry>r<subscript>2</subscript></entry> |
| 218 | <entry>r<subscript>1</subscript></entry> |
| 219 | <entry>r<subscript>0</subscript></entry> |
| 220 | </row> |
| 221 | <row id="V4L2-PIX-FMT-RGB565X"> |
| 222 | <entry><constant>V4L2_PIX_FMT_RGB565X</constant></entry> |
| 223 | <entry>'RGBR'</entry> |
| 224 | <entry></entry> |
| 225 | <entry>b<subscript>4</subscript></entry> |
| 226 | <entry>b<subscript>3</subscript></entry> |
| 227 | <entry>b<subscript>2</subscript></entry> |
| 228 | <entry>b<subscript>1</subscript></entry> |
| 229 | <entry>b<subscript>0</subscript></entry> |
| 230 | <entry>g<subscript>5</subscript></entry> |
| 231 | <entry>g<subscript>4</subscript></entry> |
| 232 | <entry>g<subscript>3</subscript></entry> |
| 233 | <entry></entry> |
| 234 | <entry>g<subscript>2</subscript></entry> |
| 235 | <entry>g<subscript>1</subscript></entry> |
| 236 | <entry>g<subscript>0</subscript></entry> |
| 237 | <entry>r<subscript>4</subscript></entry> |
| 238 | <entry>r<subscript>3</subscript></entry> |
| 239 | <entry>r<subscript>2</subscript></entry> |
| 240 | <entry>r<subscript>1</subscript></entry> |
| 241 | <entry>r<subscript>0</subscript></entry> |
| 242 | </row> |
| 243 | <row id="V4L2-PIX-FMT-BGR24"> |
| 244 | <entry><constant>V4L2_PIX_FMT_BGR24</constant></entry> |
| 245 | <entry>'BGR3'</entry> |
| 246 | <entry></entry> |
| 247 | <entry>b<subscript>7</subscript></entry> |
| 248 | <entry>b<subscript>6</subscript></entry> |
| 249 | <entry>b<subscript>5</subscript></entry> |
| 250 | <entry>b<subscript>4</subscript></entry> |
| 251 | <entry>b<subscript>3</subscript></entry> |
| 252 | <entry>b<subscript>2</subscript></entry> |
| 253 | <entry>b<subscript>1</subscript></entry> |
| 254 | <entry>b<subscript>0</subscript></entry> |
| 255 | <entry></entry> |
| 256 | <entry>g<subscript>7</subscript></entry> |
| 257 | <entry>g<subscript>6</subscript></entry> |
| 258 | <entry>g<subscript>5</subscript></entry> |
| 259 | <entry>g<subscript>4</subscript></entry> |
| 260 | <entry>g<subscript>3</subscript></entry> |
| 261 | <entry>g<subscript>2</subscript></entry> |
| 262 | <entry>g<subscript>1</subscript></entry> |
| 263 | <entry>g<subscript>0</subscript></entry> |
| 264 | <entry></entry> |
| 265 | <entry>r<subscript>7</subscript></entry> |
| 266 | <entry>r<subscript>6</subscript></entry> |
| 267 | <entry>r<subscript>5</subscript></entry> |
| 268 | <entry>r<subscript>4</subscript></entry> |
| 269 | <entry>r<subscript>3</subscript></entry> |
| 270 | <entry>r<subscript>2</subscript></entry> |
| 271 | <entry>r<subscript>1</subscript></entry> |
| 272 | <entry>r<subscript>0</subscript></entry> |
| 273 | </row> |
| 274 | <row id="V4L2-PIX-FMT-RGB24"> |
| 275 | <entry><constant>V4L2_PIX_FMT_RGB24</constant></entry> |
| 276 | <entry>'RGB3'</entry> |
| 277 | <entry></entry> |
| 278 | <entry>r<subscript>7</subscript></entry> |
| 279 | <entry>r<subscript>6</subscript></entry> |
| 280 | <entry>r<subscript>5</subscript></entry> |
| 281 | <entry>r<subscript>4</subscript></entry> |
| 282 | <entry>r<subscript>3</subscript></entry> |
| 283 | <entry>r<subscript>2</subscript></entry> |
| 284 | <entry>r<subscript>1</subscript></entry> |
| 285 | <entry>r<subscript>0</subscript></entry> |
| 286 | <entry></entry> |
| 287 | <entry>g<subscript>7</subscript></entry> |
| 288 | <entry>g<subscript>6</subscript></entry> |
| 289 | <entry>g<subscript>5</subscript></entry> |
| 290 | <entry>g<subscript>4</subscript></entry> |
| 291 | <entry>g<subscript>3</subscript></entry> |
| 292 | <entry>g<subscript>2</subscript></entry> |
| 293 | <entry>g<subscript>1</subscript></entry> |
| 294 | <entry>g<subscript>0</subscript></entry> |
| 295 | <entry></entry> |
| 296 | <entry>b<subscript>7</subscript></entry> |
| 297 | <entry>b<subscript>6</subscript></entry> |
| 298 | <entry>b<subscript>5</subscript></entry> |
| 299 | <entry>b<subscript>4</subscript></entry> |
| 300 | <entry>b<subscript>3</subscript></entry> |
| 301 | <entry>b<subscript>2</subscript></entry> |
| 302 | <entry>b<subscript>1</subscript></entry> |
| 303 | <entry>b<subscript>0</subscript></entry> |
| 304 | </row> |
| 305 | <row id="V4L2-PIX-FMT-BGR32"> |
| 306 | <entry><constant>V4L2_PIX_FMT_BGR32</constant></entry> |
| 307 | <entry>'BGR4'</entry> |
| 308 | <entry></entry> |
| 309 | <entry>b<subscript>7</subscript></entry> |
| 310 | <entry>b<subscript>6</subscript></entry> |
| 311 | <entry>b<subscript>5</subscript></entry> |
| 312 | <entry>b<subscript>4</subscript></entry> |
| 313 | <entry>b<subscript>3</subscript></entry> |
| 314 | <entry>b<subscript>2</subscript></entry> |
| 315 | <entry>b<subscript>1</subscript></entry> |
| 316 | <entry>b<subscript>0</subscript></entry> |
| 317 | <entry></entry> |
| 318 | <entry>g<subscript>7</subscript></entry> |
| 319 | <entry>g<subscript>6</subscript></entry> |
| 320 | <entry>g<subscript>5</subscript></entry> |
| 321 | <entry>g<subscript>4</subscript></entry> |
| 322 | <entry>g<subscript>3</subscript></entry> |
| 323 | <entry>g<subscript>2</subscript></entry> |
| 324 | <entry>g<subscript>1</subscript></entry> |
| 325 | <entry>g<subscript>0</subscript></entry> |
| 326 | <entry></entry> |
| 327 | <entry>r<subscript>7</subscript></entry> |
| 328 | <entry>r<subscript>6</subscript></entry> |
| 329 | <entry>r<subscript>5</subscript></entry> |
| 330 | <entry>r<subscript>4</subscript></entry> |
| 331 | <entry>r<subscript>3</subscript></entry> |
| 332 | <entry>r<subscript>2</subscript></entry> |
| 333 | <entry>r<subscript>1</subscript></entry> |
| 334 | <entry>r<subscript>0</subscript></entry> |
| 335 | <entry></entry> |
| 336 | <entry>a<subscript>7</subscript></entry> |
| 337 | <entry>a<subscript>6</subscript></entry> |
| 338 | <entry>a<subscript>5</subscript></entry> |
| 339 | <entry>a<subscript>4</subscript></entry> |
| 340 | <entry>a<subscript>3</subscript></entry> |
| 341 | <entry>a<subscript>2</subscript></entry> |
| 342 | <entry>a<subscript>1</subscript></entry> |
| 343 | <entry>a<subscript>0</subscript></entry> |
| 344 | </row> |
| 345 | <row id="V4L2-PIX-FMT-RGB32"> |
| 346 | <entry><constant>V4L2_PIX_FMT_RGB32</constant></entry> |
| 347 | <entry>'RGB4'</entry> |
| 348 | <entry></entry> |
| 349 | <entry>r<subscript>7</subscript></entry> |
| 350 | <entry>r<subscript>6</subscript></entry> |
| 351 | <entry>r<subscript>5</subscript></entry> |
| 352 | <entry>r<subscript>4</subscript></entry> |
| 353 | <entry>r<subscript>3</subscript></entry> |
| 354 | <entry>r<subscript>2</subscript></entry> |
| 355 | <entry>r<subscript>1</subscript></entry> |
| 356 | <entry>r<subscript>0</subscript></entry> |
| 357 | <entry></entry> |
| 358 | <entry>g<subscript>7</subscript></entry> |
| 359 | <entry>g<subscript>6</subscript></entry> |
| 360 | <entry>g<subscript>5</subscript></entry> |
| 361 | <entry>g<subscript>4</subscript></entry> |
| 362 | <entry>g<subscript>3</subscript></entry> |
| 363 | <entry>g<subscript>2</subscript></entry> |
| 364 | <entry>g<subscript>1</subscript></entry> |
| 365 | <entry>g<subscript>0</subscript></entry> |
| 366 | <entry></entry> |
| 367 | <entry>b<subscript>7</subscript></entry> |
| 368 | <entry>b<subscript>6</subscript></entry> |
| 369 | <entry>b<subscript>5</subscript></entry> |
| 370 | <entry>b<subscript>4</subscript></entry> |
| 371 | <entry>b<subscript>3</subscript></entry> |
| 372 | <entry>b<subscript>2</subscript></entry> |
| 373 | <entry>b<subscript>1</subscript></entry> |
| 374 | <entry>b<subscript>0</subscript></entry> |
| 375 | <entry></entry> |
| 376 | <entry>a<subscript>7</subscript></entry> |
| 377 | <entry>a<subscript>6</subscript></entry> |
| 378 | <entry>a<subscript>5</subscript></entry> |
| 379 | <entry>a<subscript>4</subscript></entry> |
| 380 | <entry>a<subscript>3</subscript></entry> |
| 381 | <entry>a<subscript>2</subscript></entry> |
| 382 | <entry>a<subscript>1</subscript></entry> |
| 383 | <entry>a<subscript>0</subscript></entry> |
| 384 | </row> |
| 385 | </tbody> |
| 386 | </tgroup> |
| 387 | </table> |
| 388 | |
| 389 | <para>Bit 7 is the most significant bit. The value of a = alpha |
| 390 | bits is undefined when reading from the driver, ignored when writing |
| 391 | to the driver, except when alpha blending has been negotiated for a |
| 392 | <link linkend="overlay">Video Overlay</link> or <link |
| 393 | linkend="osd">Video Output Overlay</link>.</para> |
| 394 | |
| 395 | <example> |
| 396 | <title><constant>V4L2_PIX_FMT_BGR24</constant> 4 × 4 pixel |
| 397 | image</title> |
| 398 | |
| 399 | <formalpara> |
| 400 | <title>Byte Order.</title> |
| 401 | <para>Each cell is one byte. |
| 402 | <informaltable frame="none"> |
| 403 | <tgroup cols="13" align="center"> |
| 404 | <colspec align="left" colwidth="2*" /> |
| 405 | <tbody valign="top"> |
| 406 | <row> |
| 407 | <entry>start + 0:</entry> |
| 408 | <entry>B<subscript>00</subscript></entry> |
| 409 | <entry>G<subscript>00</subscript></entry> |
| 410 | <entry>R<subscript>00</subscript></entry> |
| 411 | <entry>B<subscript>01</subscript></entry> |
| 412 | <entry>G<subscript>01</subscript></entry> |
| 413 | <entry>R<subscript>01</subscript></entry> |
| 414 | <entry>B<subscript>02</subscript></entry> |
| 415 | <entry>G<subscript>02</subscript></entry> |
| 416 | <entry>R<subscript>02</subscript></entry> |
| 417 | <entry>B<subscript>03</subscript></entry> |
| 418 | <entry>G<subscript>03</subscript></entry> |
| 419 | <entry>R<subscript>03</subscript></entry> |
| 420 | </row> |
| 421 | <row> |
| 422 | <entry>start + 12:</entry> |
| 423 | <entry>B<subscript>10</subscript></entry> |
| 424 | <entry>G<subscript>10</subscript></entry> |
| 425 | <entry>R<subscript>10</subscript></entry> |
| 426 | <entry>B<subscript>11</subscript></entry> |
| 427 | <entry>G<subscript>11</subscript></entry> |
| 428 | <entry>R<subscript>11</subscript></entry> |
| 429 | <entry>B<subscript>12</subscript></entry> |
| 430 | <entry>G<subscript>12</subscript></entry> |
| 431 | <entry>R<subscript>12</subscript></entry> |
| 432 | <entry>B<subscript>13</subscript></entry> |
| 433 | <entry>G<subscript>13</subscript></entry> |
| 434 | <entry>R<subscript>13</subscript></entry> |
| 435 | </row> |
| 436 | <row> |
| 437 | <entry>start + 24:</entry> |
| 438 | <entry>B<subscript>20</subscript></entry> |
| 439 | <entry>G<subscript>20</subscript></entry> |
| 440 | <entry>R<subscript>20</subscript></entry> |
| 441 | <entry>B<subscript>21</subscript></entry> |
| 442 | <entry>G<subscript>21</subscript></entry> |
| 443 | <entry>R<subscript>21</subscript></entry> |
| 444 | <entry>B<subscript>22</subscript></entry> |
| 445 | <entry>G<subscript>22</subscript></entry> |
| 446 | <entry>R<subscript>22</subscript></entry> |
| 447 | <entry>B<subscript>23</subscript></entry> |
| 448 | <entry>G<subscript>23</subscript></entry> |
| 449 | <entry>R<subscript>23</subscript></entry> |
| 450 | </row> |
| 451 | <row> |
| 452 | <entry>start + 36:</entry> |
| 453 | <entry>B<subscript>30</subscript></entry> |
| 454 | <entry>G<subscript>30</subscript></entry> |
| 455 | <entry>R<subscript>30</subscript></entry> |
| 456 | <entry>B<subscript>31</subscript></entry> |
| 457 | <entry>G<subscript>31</subscript></entry> |
| 458 | <entry>R<subscript>31</subscript></entry> |
| 459 | <entry>B<subscript>32</subscript></entry> |
| 460 | <entry>G<subscript>32</subscript></entry> |
| 461 | <entry>R<subscript>32</subscript></entry> |
| 462 | <entry>B<subscript>33</subscript></entry> |
| 463 | <entry>G<subscript>33</subscript></entry> |
| 464 | <entry>R<subscript>33</subscript></entry> |
| 465 | </row> |
| 466 | </tbody> |
| 467 | </tgroup> |
| 468 | </informaltable> |
| 469 | </para> |
| 470 | </formalpara> |
| 471 | </example> |
| 472 | |
| 473 | <important> |
| 474 | <para>Drivers may interpret these formats differently.</para> |
| 475 | </important> |
| 476 | |
| 477 | <para>Some RGB formats above are uncommon and were probably |
| 478 | defined in error. Drivers may interpret them as in <xref |
| 479 | linkend="rgb-formats-corrected" />.</para> |
| 480 | |
| 481 | <table pgwide="1" frame="none" id="rgb-formats-corrected"> |
| 482 | <title>Packed RGB Image Formats (corrected)</title> |
| 483 | <tgroup cols="37" align="center"> |
| 484 | <colspec colname="id" align="left" /> |
| 485 | <colspec colname="fourcc" /> |
| 486 | <colspec colname="bit" /> |
| 487 | |
| 488 | <colspec colnum="4" colname="b07" align="center" /> |
| 489 | <colspec colnum="5" colname="b06" align="center" /> |
| 490 | <colspec colnum="6" colname="b05" align="center" /> |
| 491 | <colspec colnum="7" colname="b04" align="center" /> |
| 492 | <colspec colnum="8" colname="b03" align="center" /> |
| 493 | <colspec colnum="9" colname="b02" align="center" /> |
| 494 | <colspec colnum="10" colname="b01" align="center" /> |
| 495 | <colspec colnum="11" colname="b00" align="center" /> |
| 496 | |
| 497 | <colspec colnum="13" colname="b17" align="center" /> |
| 498 | <colspec colnum="14" colname="b16" align="center" /> |
| 499 | <colspec colnum="15" colname="b15" align="center" /> |
| 500 | <colspec colnum="16" colname="b14" align="center" /> |
| 501 | <colspec colnum="17" colname="b13" align="center" /> |
| 502 | <colspec colnum="18" colname="b12" align="center" /> |
| 503 | <colspec colnum="19" colname="b11" align="center" /> |
| 504 | <colspec colnum="20" colname="b10" align="center" /> |
| 505 | |
| 506 | <colspec colnum="22" colname="b27" align="center" /> |
| 507 | <colspec colnum="23" colname="b26" align="center" /> |
| 508 | <colspec colnum="24" colname="b25" align="center" /> |
| 509 | <colspec colnum="25" colname="b24" align="center" /> |
| 510 | <colspec colnum="26" colname="b23" align="center" /> |
| 511 | <colspec colnum="27" colname="b22" align="center" /> |
| 512 | <colspec colnum="28" colname="b21" align="center" /> |
| 513 | <colspec colnum="29" colname="b20" align="center" /> |
| 514 | |
| 515 | <colspec colnum="31" colname="b37" align="center" /> |
| 516 | <colspec colnum="32" colname="b36" align="center" /> |
| 517 | <colspec colnum="33" colname="b35" align="center" /> |
| 518 | <colspec colnum="34" colname="b34" align="center" /> |
| 519 | <colspec colnum="35" colname="b33" align="center" /> |
| 520 | <colspec colnum="36" colname="b32" align="center" /> |
| 521 | <colspec colnum="37" colname="b31" align="center" /> |
| 522 | <colspec colnum="38" colname="b30" align="center" /> |
| 523 | |
| 524 | <spanspec namest="b07" nameend="b00" spanname="b0" /> |
| 525 | <spanspec namest="b17" nameend="b10" spanname="b1" /> |
| 526 | <spanspec namest="b27" nameend="b20" spanname="b2" /> |
| 527 | <spanspec namest="b37" nameend="b30" spanname="b3" /> |
| 528 | <thead> |
| 529 | <row> |
| 530 | <entry>Identifier</entry> |
| 531 | <entry>Code</entry> |
| 532 | <entry> </entry> |
| 533 | <entry spanname="b0">Byte 0 in memory</entry> |
| 534 | <entry spanname="b1">Byte 1</entry> |
| 535 | <entry spanname="b2">Byte 2</entry> |
| 536 | <entry spanname="b3">Byte 3</entry> |
| 537 | </row> |
| 538 | <row> |
| 539 | <entry> </entry> |
| 540 | <entry> </entry> |
| 541 | <entry>Bit</entry> |
| 542 | <entry>7</entry> |
| 543 | <entry>6</entry> |
| 544 | <entry>5</entry> |
| 545 | <entry>4</entry> |
| 546 | <entry>3</entry> |
| 547 | <entry>2</entry> |
| 548 | <entry>1</entry> |
| 549 | <entry>0</entry> |
| 550 | <entry> </entry> |
| 551 | <entry>7</entry> |
| 552 | <entry>6</entry> |
| 553 | <entry>5</entry> |
| 554 | <entry>4</entry> |
| 555 | <entry>3</entry> |
| 556 | <entry>2</entry> |
| 557 | <entry>1</entry> |
| 558 | <entry>0</entry> |
| 559 | <entry> </entry> |
| 560 | <entry>7</entry> |
| 561 | <entry>6</entry> |
| 562 | <entry>5</entry> |
| 563 | <entry>4</entry> |
| 564 | <entry>3</entry> |
| 565 | <entry>2</entry> |
| 566 | <entry>1</entry> |
| 567 | <entry>0</entry> |
| 568 | <entry> </entry> |
| 569 | <entry>7</entry> |
| 570 | <entry>6</entry> |
| 571 | <entry>5</entry> |
| 572 | <entry>4</entry> |
| 573 | <entry>3</entry> |
| 574 | <entry>2</entry> |
| 575 | <entry>1</entry> |
| 576 | <entry>0</entry> |
| 577 | </row> |
| 578 | </thead> |
| 579 | <tbody valign="top"> |
| 580 | <row><!-- id="V4L2-PIX-FMT-RGB332" --> |
| 581 | <entry><constant>V4L2_PIX_FMT_RGB332</constant></entry> |
| 582 | <entry>'RGB1'</entry> |
| 583 | <entry></entry> |
| 584 | <entry>r<subscript>2</subscript></entry> |
| 585 | <entry>r<subscript>1</subscript></entry> |
| 586 | <entry>r<subscript>0</subscript></entry> |
| 587 | <entry>g<subscript>2</subscript></entry> |
| 588 | <entry>g<subscript>1</subscript></entry> |
| 589 | <entry>g<subscript>0</subscript></entry> |
| 590 | <entry>b<subscript>1</subscript></entry> |
| 591 | <entry>b<subscript>0</subscript></entry> |
| 592 | </row> |
| 593 | <row><!-- id="V4L2-PIX-FMT-RGB444" --> |
| 594 | <entry><constant>V4L2_PIX_FMT_RGB444</constant></entry> |
| 595 | <entry>'R444'</entry> |
| 596 | <entry></entry> |
| 597 | <entry>g<subscript>3</subscript></entry> |
| 598 | <entry>g<subscript>2</subscript></entry> |
| 599 | <entry>g<subscript>1</subscript></entry> |
| 600 | <entry>g<subscript>0</subscript></entry> |
| 601 | <entry>b<subscript>3</subscript></entry> |
| 602 | <entry>b<subscript>2</subscript></entry> |
| 603 | <entry>b<subscript>1</subscript></entry> |
| 604 | <entry>b<subscript>0</subscript></entry> |
| 605 | <entry></entry> |
| 606 | <entry>a<subscript>3</subscript></entry> |
| 607 | <entry>a<subscript>2</subscript></entry> |
| 608 | <entry>a<subscript>1</subscript></entry> |
| 609 | <entry>a<subscript>0</subscript></entry> |
| 610 | <entry>r<subscript>3</subscript></entry> |
| 611 | <entry>r<subscript>2</subscript></entry> |
| 612 | <entry>r<subscript>1</subscript></entry> |
| 613 | <entry>r<subscript>0</subscript></entry> |
| 614 | </row> |
| 615 | <row><!-- id="V4L2-PIX-FMT-RGB555" --> |
| 616 | <entry><constant>V4L2_PIX_FMT_RGB555</constant></entry> |
| 617 | <entry>'RGBO'</entry> |
| 618 | <entry></entry> |
| 619 | <entry>g<subscript>2</subscript></entry> |
| 620 | <entry>g<subscript>1</subscript></entry> |
| 621 | <entry>g<subscript>0</subscript></entry> |
| 622 | <entry>b<subscript>4</subscript></entry> |
| 623 | <entry>b<subscript>3</subscript></entry> |
| 624 | <entry>b<subscript>2</subscript></entry> |
| 625 | <entry>b<subscript>1</subscript></entry> |
| 626 | <entry>b<subscript>0</subscript></entry> |
| 627 | <entry></entry> |
| 628 | <entry>a</entry> |
| 629 | <entry>r<subscript>4</subscript></entry> |
| 630 | <entry>r<subscript>3</subscript></entry> |
| 631 | <entry>r<subscript>2</subscript></entry> |
| 632 | <entry>r<subscript>1</subscript></entry> |
| 633 | <entry>r<subscript>0</subscript></entry> |
| 634 | <entry>g<subscript>4</subscript></entry> |
| 635 | <entry>g<subscript>3</subscript></entry> |
| 636 | </row> |
| 637 | <row><!-- id="V4L2-PIX-FMT-RGB565" --> |
| 638 | <entry><constant>V4L2_PIX_FMT_RGB565</constant></entry> |
| 639 | <entry>'RGBP'</entry> |
| 640 | <entry></entry> |
| 641 | <entry>g<subscript>2</subscript></entry> |
| 642 | <entry>g<subscript>1</subscript></entry> |
| 643 | <entry>g<subscript>0</subscript></entry> |
| 644 | <entry>b<subscript>4</subscript></entry> |
| 645 | <entry>b<subscript>3</subscript></entry> |
| 646 | <entry>b<subscript>2</subscript></entry> |
| 647 | <entry>b<subscript>1</subscript></entry> |
| 648 | <entry>b<subscript>0</subscript></entry> |
| 649 | <entry></entry> |
| 650 | <entry>r<subscript>4</subscript></entry> |
| 651 | <entry>r<subscript>3</subscript></entry> |
| 652 | <entry>r<subscript>2</subscript></entry> |
| 653 | <entry>r<subscript>1</subscript></entry> |
| 654 | <entry>r<subscript>0</subscript></entry> |
| 655 | <entry>g<subscript>5</subscript></entry> |
| 656 | <entry>g<subscript>4</subscript></entry> |
| 657 | <entry>g<subscript>3</subscript></entry> |
| 658 | </row> |
| 659 | <row><!-- id="V4L2-PIX-FMT-RGB555X" --> |
| 660 | <entry><constant>V4L2_PIX_FMT_RGB555X</constant></entry> |
| 661 | <entry>'RGBQ'</entry> |
| 662 | <entry></entry> |
| 663 | <entry>a</entry> |
| 664 | <entry>r<subscript>4</subscript></entry> |
| 665 | <entry>r<subscript>3</subscript></entry> |
| 666 | <entry>r<subscript>2</subscript></entry> |
| 667 | <entry>r<subscript>1</subscript></entry> |
| 668 | <entry>r<subscript>0</subscript></entry> |
| 669 | <entry>g<subscript>4</subscript></entry> |
| 670 | <entry>g<subscript>3</subscript></entry> |
| 671 | <entry></entry> |
| 672 | <entry>g<subscript>2</subscript></entry> |
| 673 | <entry>g<subscript>1</subscript></entry> |
| 674 | <entry>g<subscript>0</subscript></entry> |
| 675 | <entry>b<subscript>4</subscript></entry> |
| 676 | <entry>b<subscript>3</subscript></entry> |
| 677 | <entry>b<subscript>2</subscript></entry> |
| 678 | <entry>b<subscript>1</subscript></entry> |
| 679 | <entry>b<subscript>0</subscript></entry> |
| 680 | </row> |
| 681 | <row><!-- id="V4L2-PIX-FMT-RGB565X" --> |
| 682 | <entry><constant>V4L2_PIX_FMT_RGB565X</constant></entry> |
| 683 | <entry>'RGBR'</entry> |
| 684 | <entry></entry> |
| 685 | <entry>r<subscript>4</subscript></entry> |
| 686 | <entry>r<subscript>3</subscript></entry> |
| 687 | <entry>r<subscript>2</subscript></entry> |
| 688 | <entry>r<subscript>1</subscript></entry> |
| 689 | <entry>r<subscript>0</subscript></entry> |
| 690 | <entry>g<subscript>5</subscript></entry> |
| 691 | <entry>g<subscript>4</subscript></entry> |
| 692 | <entry>g<subscript>3</subscript></entry> |
| 693 | <entry></entry> |
| 694 | <entry>g<subscript>2</subscript></entry> |
| 695 | <entry>g<subscript>1</subscript></entry> |
| 696 | <entry>g<subscript>0</subscript></entry> |
| 697 | <entry>b<subscript>4</subscript></entry> |
| 698 | <entry>b<subscript>3</subscript></entry> |
| 699 | <entry>b<subscript>2</subscript></entry> |
| 700 | <entry>b<subscript>1</subscript></entry> |
| 701 | <entry>b<subscript>0</subscript></entry> |
| 702 | </row> |
| 703 | <row><!-- id="V4L2-PIX-FMT-BGR24" --> |
| 704 | <entry><constant>V4L2_PIX_FMT_BGR24</constant></entry> |
| 705 | <entry>'BGR3'</entry> |
| 706 | <entry></entry> |
| 707 | <entry>b<subscript>7</subscript></entry> |
| 708 | <entry>b<subscript>6</subscript></entry> |
| 709 | <entry>b<subscript>5</subscript></entry> |
| 710 | <entry>b<subscript>4</subscript></entry> |
| 711 | <entry>b<subscript>3</subscript></entry> |
| 712 | <entry>b<subscript>2</subscript></entry> |
| 713 | <entry>b<subscript>1</subscript></entry> |
| 714 | <entry>b<subscript>0</subscript></entry> |
| 715 | <entry></entry> |
| 716 | <entry>g<subscript>7</subscript></entry> |
| 717 | <entry>g<subscript>6</subscript></entry> |
| 718 | <entry>g<subscript>5</subscript></entry> |
| 719 | <entry>g<subscript>4</subscript></entry> |
| 720 | <entry>g<subscript>3</subscript></entry> |
| 721 | <entry>g<subscript>2</subscript></entry> |
| 722 | <entry>g<subscript>1</subscript></entry> |
| 723 | <entry>g<subscript>0</subscript></entry> |
| 724 | <entry></entry> |
| 725 | <entry>r<subscript>7</subscript></entry> |
| 726 | <entry>r<subscript>6</subscript></entry> |
| 727 | <entry>r<subscript>5</subscript></entry> |
| 728 | <entry>r<subscript>4</subscript></entry> |
| 729 | <entry>r<subscript>3</subscript></entry> |
| 730 | <entry>r<subscript>2</subscript></entry> |
| 731 | <entry>r<subscript>1</subscript></entry> |
| 732 | <entry>r<subscript>0</subscript></entry> |
| 733 | </row> |
| 734 | <row><!-- id="V4L2-PIX-FMT-RGB24" --> |
| 735 | <entry><constant>V4L2_PIX_FMT_RGB24</constant></entry> |
| 736 | <entry>'RGB3'</entry> |
| 737 | <entry></entry> |
| 738 | <entry>r<subscript>7</subscript></entry> |
| 739 | <entry>r<subscript>6</subscript></entry> |
| 740 | <entry>r<subscript>5</subscript></entry> |
| 741 | <entry>r<subscript>4</subscript></entry> |
| 742 | <entry>r<subscript>3</subscript></entry> |
| 743 | <entry>r<subscript>2</subscript></entry> |
| 744 | <entry>r<subscript>1</subscript></entry> |
| 745 | <entry>r<subscript>0</subscript></entry> |
| 746 | <entry></entry> |
| 747 | <entry>g<subscript>7</subscript></entry> |
| 748 | <entry>g<subscript>6</subscript></entry> |
| 749 | <entry>g<subscript>5</subscript></entry> |
| 750 | <entry>g<subscript>4</subscript></entry> |
| 751 | <entry>g<subscript>3</subscript></entry> |
| 752 | <entry>g<subscript>2</subscript></entry> |
| 753 | <entry>g<subscript>1</subscript></entry> |
| 754 | <entry>g<subscript>0</subscript></entry> |
| 755 | <entry></entry> |
| 756 | <entry>b<subscript>7</subscript></entry> |
| 757 | <entry>b<subscript>6</subscript></entry> |
| 758 | <entry>b<subscript>5</subscript></entry> |
| 759 | <entry>b<subscript>4</subscript></entry> |
| 760 | <entry>b<subscript>3</subscript></entry> |
| 761 | <entry>b<subscript>2</subscript></entry> |
| 762 | <entry>b<subscript>1</subscript></entry> |
| 763 | <entry>b<subscript>0</subscript></entry> |
| 764 | </row> |
| 765 | <row><!-- id="V4L2-PIX-FMT-BGR32" --> |
| 766 | <entry><constant>V4L2_PIX_FMT_BGR32</constant></entry> |
| 767 | <entry>'BGR4'</entry> |
| 768 | <entry></entry> |
| 769 | <entry>b<subscript>7</subscript></entry> |
| 770 | <entry>b<subscript>6</subscript></entry> |
| 771 | <entry>b<subscript>5</subscript></entry> |
| 772 | <entry>b<subscript>4</subscript></entry> |
| 773 | <entry>b<subscript>3</subscript></entry> |
| 774 | <entry>b<subscript>2</subscript></entry> |
| 775 | <entry>b<subscript>1</subscript></entry> |
| 776 | <entry>b<subscript>0</subscript></entry> |
| 777 | <entry></entry> |
| 778 | <entry>g<subscript>7</subscript></entry> |
| 779 | <entry>g<subscript>6</subscript></entry> |
| 780 | <entry>g<subscript>5</subscript></entry> |
| 781 | <entry>g<subscript>4</subscript></entry> |
| 782 | <entry>g<subscript>3</subscript></entry> |
| 783 | <entry>g<subscript>2</subscript></entry> |
| 784 | <entry>g<subscript>1</subscript></entry> |
| 785 | <entry>g<subscript>0</subscript></entry> |
| 786 | <entry></entry> |
| 787 | <entry>r<subscript>7</subscript></entry> |
| 788 | <entry>r<subscript>6</subscript></entry> |
| 789 | <entry>r<subscript>5</subscript></entry> |
| 790 | <entry>r<subscript>4</subscript></entry> |
| 791 | <entry>r<subscript>3</subscript></entry> |
| 792 | <entry>r<subscript>2</subscript></entry> |
| 793 | <entry>r<subscript>1</subscript></entry> |
| 794 | <entry>r<subscript>0</subscript></entry> |
| 795 | <entry></entry> |
| 796 | <entry>a<subscript>7</subscript></entry> |
| 797 | <entry>a<subscript>6</subscript></entry> |
| 798 | <entry>a<subscript>5</subscript></entry> |
| 799 | <entry>a<subscript>4</subscript></entry> |
| 800 | <entry>a<subscript>3</subscript></entry> |
| 801 | <entry>a<subscript>2</subscript></entry> |
| 802 | <entry>a<subscript>1</subscript></entry> |
| 803 | <entry>a<subscript>0</subscript></entry> |
| 804 | </row> |
| 805 | <row><!-- id="V4L2-PIX-FMT-RGB32" --> |
| 806 | <entry><constant>V4L2_PIX_FMT_RGB32</constant></entry> |
| 807 | <entry>'RGB4'</entry> |
| 808 | <entry></entry> |
| 809 | <entry>a<subscript>7</subscript></entry> |
| 810 | <entry>a<subscript>6</subscript></entry> |
| 811 | <entry>a<subscript>5</subscript></entry> |
| 812 | <entry>a<subscript>4</subscript></entry> |
| 813 | <entry>a<subscript>3</subscript></entry> |
| 814 | <entry>a<subscript>2</subscript></entry> |
| 815 | <entry>a<subscript>1</subscript></entry> |
| 816 | <entry>a<subscript>0</subscript></entry> |
| 817 | <entry></entry> |
| 818 | <entry>r<subscript>7</subscript></entry> |
| 819 | <entry>r<subscript>6</subscript></entry> |
| 820 | <entry>r<subscript>5</subscript></entry> |
| 821 | <entry>r<subscript>4</subscript></entry> |
| 822 | <entry>r<subscript>3</subscript></entry> |
| 823 | <entry>r<subscript>2</subscript></entry> |
| 824 | <entry>r<subscript>1</subscript></entry> |
| 825 | <entry>r<subscript>0</subscript></entry> |
| 826 | <entry></entry> |
| 827 | <entry>g<subscript>7</subscript></entry> |
| 828 | <entry>g<subscript>6</subscript></entry> |
| 829 | <entry>g<subscript>5</subscript></entry> |
| 830 | <entry>g<subscript>4</subscript></entry> |
| 831 | <entry>g<subscript>3</subscript></entry> |
| 832 | <entry>g<subscript>2</subscript></entry> |
| 833 | <entry>g<subscript>1</subscript></entry> |
| 834 | <entry>g<subscript>0</subscript></entry> |
| 835 | <entry></entry> |
| 836 | <entry>b<subscript>7</subscript></entry> |
| 837 | <entry>b<subscript>6</subscript></entry> |
| 838 | <entry>b<subscript>5</subscript></entry> |
| 839 | <entry>b<subscript>4</subscript></entry> |
| 840 | <entry>b<subscript>3</subscript></entry> |
| 841 | <entry>b<subscript>2</subscript></entry> |
| 842 | <entry>b<subscript>1</subscript></entry> |
| 843 | <entry>b<subscript>0</subscript></entry> |
| 844 | </row> |
| 845 | </tbody> |
| 846 | </tgroup> |
| 847 | </table> |
| 848 | |
| 849 | <para>A test utility to determine which RGB formats a driver |
| 850 | actually supports is available from the LinuxTV v4l-dvb repository. |
| 851 | See &v4l-dvb; for access instructions.</para> |
| 852 | |
| 853 | </refsect1> |
| 854 | </refentry> |
| 855 | |
| 856 | <!-- |
| 857 | Local Variables: |
| 858 | mode: sgml |
| 859 | sgml-parent-document: "pixfmt.sgml" |
| 860 | indent-tabs-mode: nil |
| 861 | End: |
| 862 | --> |