Lines Matching +full:4 +full:- +full:bits
1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _packed-yuv:
15 - In all the tables that follow, bit 7 is the most significant bit in a byte.
16 - 'Y', 'Cb' and 'Cr' denote bits of the luma, blue chroma (also known as
18 denotes bits of the alpha component (if supported by the format), and 'X'
19 denotes padding bits.
22 4:4:4 Subsampling
28 The next table lists the packed YUV 4:4:4 formats with less than 8 bits per
30 seen in a 16-bit word, which is then stored in memory in little endian byte
31 order, and on the number of bits for each component. For instance the YUV565
32 format stores a pixel in a 16-bit word [15:0] laid out at as [Y'\ :sub:`4-0`
33 Cb\ :sub:`5-0` Cr\ :sub:`4-0`], and stored in memory in two bytes,
34 [Cb\ :sub:`2-0` Cr\ :sub:`4-0`] followed by [Y'\ :sub:`4-0` Cb\ :sub:`5-3`].
44 .. flat-table:: Packed YUV 4:4:4 Image Formats (less than 8bpc)
45 :header-rows: 2
46 :stub-columns: 0
48 * - Identifier
49 - Code
51 - :cspan:`7` Byte 0 in memory
53 - :cspan:`7` Byte 1
55 * -
56 -
57 - 7
58 - 6
59 - 5
60 - 4
61 - 3
62 - 2
63 - 1
64 - 0
66 - 7
67 - 6
68 - 5
69 - 4
70 - 3
71 - 2
72 - 1
73 - 0
75 * .. _V4L2-PIX-FMT-YUV444:
77 - ``V4L2_PIX_FMT_YUV444``
78 - 'Y444'
80 - Cb\ :sub:`3`
81 - Cb\ :sub:`2`
82 - Cb\ :sub:`1`
83 - Cb\ :sub:`0`
84 - Cr\ :sub:`3`
85 - Cr\ :sub:`2`
86 - Cr\ :sub:`1`
87 - Cr\ :sub:`0`
89 - a\ :sub:`3`
90 - a\ :sub:`2`
91 - a\ :sub:`1`
92 - a\ :sub:`0`
93 - Y'\ :sub:`3`
94 - Y'\ :sub:`2`
95 - Y'\ :sub:`1`
96 - Y'\ :sub:`0`
98 * .. _V4L2-PIX-FMT-YUV555:
100 - ``V4L2_PIX_FMT_YUV555``
101 - 'YUVO'
103 - Cb\ :sub:`2`
104 - Cb\ :sub:`1`
105 - Cb\ :sub:`0`
106 - Cr\ :sub:`4`
107 - Cr\ :sub:`3`
108 - Cr\ :sub:`2`
109 - Cr\ :sub:`1`
110 - Cr\ :sub:`0`
112 - a
113 - Y'\ :sub:`4`
114 - Y'\ :sub:`3`
115 - Y'\ :sub:`2`
116 - Y'\ :sub:`1`
117 - Y'\ :sub:`0`
118 - Cb\ :sub:`4`
119 - Cb\ :sub:`3`
121 * .. _V4L2-PIX-FMT-YUV565:
123 - ``V4L2_PIX_FMT_YUV565``
124 - 'YUVP'
126 - Cb\ :sub:`2`
127 - Cb\ :sub:`1`
128 - Cb\ :sub:`0`
129 - Cr\ :sub:`4`
130 - Cr\ :sub:`3`
131 - Cr\ :sub:`2`
132 - Cr\ :sub:`1`
133 - Cr\ :sub:`0`
135 - Y'\ :sub:`4`
136 - Y'\ :sub:`3`
137 - Y'\ :sub:`2`
138 - Y'\ :sub:`1`
139 - Y'\ :sub:`0`
140 - Cb\ :sub:`5`
141 - Cb\ :sub:`4`
142 - Cb\ :sub:`3`
150 For the YUV444 and YUV555 formats, the value of alpha bits is undefined
156 The next table lists the packed YUV 4:4:4 formats with 8 bits per component.
158 memory, and on the total number of bits per pixel. For instance, the VUYX32
159 format stores a pixel with Cr\ :sub:`7-0` in the first byte, Cb\ :sub:`7-0` in
160 the second byte and Y'\ :sub:`7-0` in the third byte.
162 .. flat-table:: Packed YUV Image Formats (8bpc)
163 :header-rows: 1
164 :stub-columns: 0
166 * - Identifier
167 - Code
168 - Byte 0
169 - Byte 1
170 - Byte 2
171 - Byte 3
173 * .. _V4L2-PIX-FMT-YUV32:
175 - ``V4L2_PIX_FMT_YUV32``
176 - 'YUV4'
178 - A\ :sub:`7-0`
179 - Y'\ :sub:`7-0`
180 - Cb\ :sub:`7-0`
181 - Cr\ :sub:`7-0`
183 * .. _V4L2-PIX-FMT-AYUV32:
185 - ``V4L2_PIX_FMT_AYUV32``
186 - 'AYUV'
188 - A\ :sub:`7-0`
189 - Y'\ :sub:`7-0`
190 - Cb\ :sub:`7-0`
191 - Cr\ :sub:`7-0`
193 * .. _V4L2-PIX-FMT-XYUV32:
195 - ``V4L2_PIX_FMT_XYUV32``
196 - 'XYUV'
198 - X\ :sub:`7-0`
199 - Y'\ :sub:`7-0`
200 - Cb\ :sub:`7-0`
201 - Cr\ :sub:`7-0`
203 * .. _V4L2-PIX-FMT-VUYA32:
205 - ``V4L2_PIX_FMT_VUYA32``
206 - 'VUYA'
208 - Cr\ :sub:`7-0`
209 - Cb\ :sub:`7-0`
210 - Y'\ :sub:`7-0`
211 - A\ :sub:`7-0`
213 * .. _V4L2-PIX-FMT-VUYX32:
215 - ``V4L2_PIX_FMT_VUYX32``
216 - 'VUYX'
218 - Cr\ :sub:`7-0`
219 - Cb\ :sub:`7-0`
220 - Y'\ :sub:`7-0`
221 - X\ :sub:`7-0`
223 * .. _V4L2-PIX-FMT-YUVA32:
225 - ``V4L2_PIX_FMT_YUVA32``
226 - 'YUVA'
228 - Y'\ :sub:`7-0`
229 - Cb\ :sub:`7-0`
230 - Cr\ :sub:`7-0`
231 - A\ :sub:`7-0`
233 * .. _V4L2-PIX-FMT-YUVX32:
235 - ``V4L2_PIX_FMT_YUVX32``
236 - 'YUVX'
238 - Y'\ :sub:`7-0`
239 - Cb\ :sub:`7-0`
240 - Cr\ :sub:`7-0`
241 - X\ :sub:`7-0`
243 * .. _V4L2-PIX-FMT-YUV24:
245 - ``V4L2_PIX_FMT_YUV24``
246 - 'YUV3'
248 - Y'\ :sub:`7-0`
249 - Cb\ :sub:`7-0`
250 - Cr\ :sub:`7-0`
251 - -\
255 - The alpha component is expected to contain a meaningful value that can be
257 - The padding bits contain undefined values that must be ignored by all
260 The next table lists the packed YUV 4:4:4 formats with 12 bits per component.
261 Expand the bits per component to 16 bits, data in the high bits, zeros in the low bits,
264 .. flat-table:: Packed YUV 4:4:4 Image Formats (12bpc)
265 :header-rows: 1
266 :stub-columns: 0
268 * - Identifier
269 - Code
270 - Byte 1-0
271 - Byte 3-2
272 - Byte 5-4
273 - Byte 7-6
274 - Byte 9-8
275 - Byte 11-10
277 * .. _V4L2-PIX-FMT-YUV48-12:
279 - ``V4L2_PIX_FMT_YUV48_12``
280 - 'Y312'
282 - Y'\ :sub:`0`
283 - Cb\ :sub:`0`
284 - Cr\ :sub:`0`
285 - Y'\ :sub:`1`
286 - Cb\ :sub:`1`
287 - Cr\ :sub:`1`
289 4:2:2 Subsampling
294 is 32-bits for 8-bit formats, and 64-bits for 10+-bit formats.
296 The packed YUYV formats with more than 8 bits per component are stored as four
297 16-bit little-endian words. Each word's most significant bits contain one
298 component, and the least significant bits are zero padding.
306 .. flat-table:: Packed YUV 4:2:2 Formats in 32-bit container
307 :header-rows: 1
308 :stub-columns: 0
310 * - Identifier
311 - Code
312 - Byte 0
313 - Byte 1
314 - Byte 2
315 - Byte 3
316 - Byte 4
317 - Byte 5
318 - Byte 6
319 - Byte 7
320 * .. _V4L2-PIX-FMT-UYVY:
322 - ``V4L2_PIX_FMT_UYVY``
323 - 'UYVY'
325 - Cb\ :sub:`0`
326 - Y'\ :sub:`0`
327 - Cr\ :sub:`0`
328 - Y'\ :sub:`1`
329 - Cb\ :sub:`2`
330 - Y'\ :sub:`2`
331 - Cr\ :sub:`2`
332 - Y'\ :sub:`3`
333 * .. _V4L2-PIX-FMT-VYUY:
335 - ``V4L2_PIX_FMT_VYUY``
336 - 'VYUY'
338 - Cr\ :sub:`0`
339 - Y'\ :sub:`0`
340 - Cb\ :sub:`0`
341 - Y'\ :sub:`1`
342 - Cr\ :sub:`2`
343 - Y'\ :sub:`2`
344 - Cb\ :sub:`2`
345 - Y'\ :sub:`3`
346 * .. _V4L2-PIX-FMT-YUYV:
348 - ``V4L2_PIX_FMT_YUYV``
349 - 'YUYV'
351 - Y'\ :sub:`0`
352 - Cb\ :sub:`0`
353 - Y'\ :sub:`1`
354 - Cr\ :sub:`0`
355 - Y'\ :sub:`2`
356 - Cb\ :sub:`2`
357 - Y'\ :sub:`3`
358 - Cr\ :sub:`2`
359 * .. _V4L2-PIX-FMT-YVYU:
361 - ``V4L2_PIX_FMT_YVYU``
362 - 'YVYU'
364 - Y'\ :sub:`0`
365 - Cr\ :sub:`0`
366 - Y'\ :sub:`1`
367 - Cb\ :sub:`0`
368 - Y'\ :sub:`2`
369 - Cr\ :sub:`2`
370 - Y'\ :sub:`3`
371 - Cb\ :sub:`2`
375 .. flat-table:: Packed YUV 4:2:2 Formats in 64-bit container
376 :header-rows: 1
377 :stub-columns: 0
379 * - Identifier
380 - Code
381 - Word 0
382 - Word 1
383 - Word 2
384 - Word 3
385 * .. _V4L2-PIX-FMT-Y210:
387 - ``V4L2_PIX_FMT_Y210``
388 - 'Y210'
390 - Y'\ :sub:`0` (bits 15-6)
391 - Cb\ :sub:`0` (bits 15-6)
392 - Y'\ :sub:`1` (bits 15-6)
393 - Cr\ :sub:`0` (bits 15-6)
394 * .. _V4L2-PIX-FMT-Y212:
396 - ``V4L2_PIX_FMT_Y212``
397 - 'Y212'
399 - Y'\ :sub:`0` (bits 15-4)
400 - Cb\ :sub:`0` (bits 15-4)
401 - Y'\ :sub:`1` (bits 15-4)
402 - Cr\ :sub:`0` (bits 15-4)
403 * .. _V4L2-PIX-FMT-Y216:
405 - ``V4L2_PIX_FMT_Y216``
406 - 'Y216'
408 - Y'\ :sub:`0` (bits 15-0)
409 - Cb\ :sub:`0` (bits 15-0)
410 - Y'\ :sub:`1` (bits 15-0)
411 - Cr\ :sub:`0` (bits 15-0)
418 Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
422 4:1:1 Subsampling
425 This format subsamples the chroma components horizontally by 4, storing 8
434 .. flat-table:: Packed YUV 4:1:1 Formats
435 :header-rows: 1
436 :stub-columns: 0
438 * - Identifier
439 - Code
440 - Byte 0
441 - Byte 1
442 - Byte 2
443 - Byte 3
444 - Byte 4
445 - Byte 5
446 - Byte 6
447 - Byte 7
448 - Byte 8
449 - Byte 9
450 - Byte 10
451 - Byte 11
452 * .. _V4L2-PIX-FMT-Y41P:
454 - ``V4L2_PIX_FMT_Y41P``
455 - 'Y41P'
457 - Cb\ :sub:`0`
458 - Y'\ :sub:`0`
459 - Cr\ :sub:`0`
460 - Y'\ :sub:`1`
461 - Cb\ :sub:`4`
462 - Y'\ :sub:`2`
463 - Cr\ :sub:`4`
464 - Y'\ :sub:`3`
465 - Y'\ :sub:`4`
466 - Y'\ :sub:`5`
467 - Y'\ :sub:`6`
468 - Y'\ :sub:`7`
477 :ref:`V4L2_PIX_FMT_YUV411P <V4L2-PIX-FMT-YUV411P>`. Y41P is derived from
478 "YUV 4:1:1 **packed**", while YUV411P stands for "YUV 4:1:1 **planar**".
481 Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`