1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2
3 .. planar-yuv:
4
5 ******************
6 Planar YUV formats
7 ******************
8
9 Planar formats split luma and chroma data in separate memory regions. They
10 exist in two variants:
11
12 - Semi-planar formats use two planes. The first plane is the luma plane and
13 stores the Y components. The second plane is the chroma plane and stores the
14 Cb and Cr components interleaved.
15
16 - Fully planar formats use three planes to store the Y, Cb and Cr components
17 separately.
18
19 Within a plane, components are stored in pixel order, which may be linear or
20 tiled. Padding may be supported at the end of the lines, and the line stride of
21 the chroma planes may be constrained by the line stride of the luma plane.
22
23 Some planar formats allow planes to be placed in independent memory locations.
24 They are identified by an 'M' suffix in their name (such as in
25 ``V4L2_PIX_FMT_NV12M``). Those formats are intended to be used only in drivers
26 and applications that support the multi-planar API, described in
27 :ref:`planar-apis`. Unless explicitly documented as supporting non-contiguous
28 planes, formats require the planes to follow each other immediately in memory.
29
30
31 Semi-Planar YUV Formats
32 =======================
33
34 These formats are commonly referred to as NV formats (NV12, NV16, ...). They
35 use two planes, and store the luma components in the first plane and the chroma
36 components in the second plane. The Cb and Cr components are interleaved in the
37 chroma plane, with Cb and Cr always stored in pairs. The chroma order is
38 exposed as different formats.
39
40 For memory contiguous formats, the number of padding pixels at the end of the
41 chroma lines is identical to the padding of the luma lines. Without horizontal
42 subsampling, the chroma line stride (in bytes) is thus equal to twice the luma
43 line stride. With horizontal subsampling by 2, the chroma line stride is equal
44 to the luma line stride. Vertical subsampling doesn't affect the line stride.
45
46 For non-contiguous formats, no constraints are enforced by the format on the
47 relationship between the luma and chroma line padding and stride.
48
49 All components are stored with the same number of bits per component.
50
51 .. raw:: latex
52
53 \footnotesize
54
55 .. tabularcolumns:: |p{5.2cm}|p{1.0cm}|p{1.5cm}|p{1.9cm}|p{1.2cm}|p{1.8cm}|p{2.7cm}|
56
57 .. flat-table:: Overview of Semi-Planar YUV Formats
58 :header-rows: 1
59 :stub-columns: 0
60
61 * - Identifier
62 - Code
63 - Bits per component
64 - Subsampling
65 - Chroma order [1]_
66 - Contiguous [2]_
67 - Tiling [3]_
68 * - V4L2_PIX_FMT_NV12
69 - 'NV12'
70 - 8
71 - 4:2:0
72 - Cb, Cr
73 - Yes
74 - Linear
75 * - V4L2_PIX_FMT_NV21
76 - 'NV21'
77 - 8
78 - 4:2:0
79 - Cr, Cb
80 - Yes
81 - Linear
82 * - V4L2_PIX_FMT_NV12M
83 - 'NM12'
84 - 8
85 - 4:2:0
86 - Cb, Cr
87 - No
88 - Linear
89 * - V4L2_PIX_FMT_NV21M
90 - 'NM21'
91 - 8
92 - 4:2:0
93 - Cr, Cb
94 - No
95 - Linear
96 * - V4L2_PIX_FMT_NV12MT
97 - 'TM12'
98 - 8
99 - 4:2:0
100 - Cb, Cr
101 - No
102 - 64x32 tiles
103
104 Horizontal Z order
105 * - V4L2_PIX_FMT_NV12MT_16X16
106 - 'VM12'
107 - 8
108 - 4:2:2
109 - Cb, Cr
110 - No
111 - 16x16 tiles
112 * - V4L2_PIX_FMT_P010
113 - 'P010'
114 - 10
115 - 4:2:0
116 - Cb, Cr
117 - Yes
118 - Linear
119 * - V4L2_PIX_FMT_P010_4L4
120 - 'T010'
121 - 10
122 - 4:2:0
123 - Cb, Cr
124 - Yes
125 - 4x4 tiles
126 * - V4L2_PIX_FMT_P012
127 - 'P012'
128 - 12
129 - 4:2:0
130 - Cb, Cr
131 - Yes
132 - Linear
133 * - V4L2_PIX_FMT_P012M
134 - 'PM12'
135 - 12
136 - 4:2:0
137 - Cb, Cr
138 - No
139 - Linear
140 * - V4L2_PIX_FMT_NV15_4L4
141 - 'VT15'
142 - 15
143 - 4:2:0
144 - Cb, Cr
145 - Yes
146 - 4x4 tiles
147 * - V4L2_PIX_FMT_MT2110T
148 - 'MT2T'
149 - 15
150 - 4:2:0
151 - Cb, Cr
152 - No
153 - 16x32 / 16x16 tiles tiled low bits
154 * - V4L2_PIX_FMT_MT2110R
155 - 'MT2R'
156 - 15
157 - 4:2:0
158 - Cb, Cr
159 - No
160 - 16x32 / 16x16 tiles raster low bits
161 * - V4L2_PIX_FMT_NV16
162 - 'NV16'
163 - 8
164 - 4:2:2
165 - Cb, Cr
166 - Yes
167 - Linear
168 * - V4L2_PIX_FMT_NV61
169 - 'NV61'
170 - 8
171 - 4:2:2
172 - Cr, Cb
173 - Yes
174 - Linear
175 * - V4L2_PIX_FMT_NV16M
176 - 'NM16'
177 - 8
178 - 4:2:2
179 - Cb, Cr
180 - No
181 - Linear
182 * - V4L2_PIX_FMT_NV61M
183 - 'NM61'
184 - 8
185 - 4:2:2
186 - Cr, Cb
187 - No
188 - Linear
189 * - V4L2_PIX_FMT_NV24
190 - 'NV24'
191 - 8
192 - 4:4:4
193 - Cb, Cr
194 - Yes
195 - Linear
196 * - V4L2_PIX_FMT_NV42
197 - 'NV42'
198 - 8
199 - 4:4:4
200 - Cr, Cb
201 - Yes
202 - Linear
203
204 .. raw:: latex
205
206 \normalsize
207
208 .. [1] Order of chroma samples in the second plane
209 .. [2] Indicates if planes have to be contiguous in memory or can be
210 disjoint
211 .. [3] Macroblock size in pixels
212
213
214 **Color Sample Location:**
215 Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
216 horizontally.
217
218
219 .. _V4L2-PIX-FMT-NV12:
220 .. _V4L2-PIX-FMT-NV21:
221 .. _V4L2-PIX-FMT-NV12M:
222 .. _V4L2-PIX-FMT-NV21M:
223 .. _V4L2-PIX-FMT-P010:
224
225 NV12, NV21, NV12M and NV21M
226 ---------------------------
227
228 Semi-planar YUV 4:2:0 formats. The chroma plane is subsampled by 2 in each
229 direction. Chroma lines contain half the number of pixels and the same number
230 of bytes as luma lines, and the chroma plane contains half the number of lines
231 of the luma plane.
232
233 .. flat-table:: Sample 4x4 NV12 Image
234 :header-rows: 0
235 :stub-columns: 0
236
237 * - start + 0:
238 - Y'\ :sub:`00`
239 - Y'\ :sub:`01`
240 - Y'\ :sub:`02`
241 - Y'\ :sub:`03`
242 * - start + 4:
243 - Y'\ :sub:`10`
244 - Y'\ :sub:`11`
245 - Y'\ :sub:`12`
246 - Y'\ :sub:`13`
247 * - start + 8:
248 - Y'\ :sub:`20`
249 - Y'\ :sub:`21`
250 - Y'\ :sub:`22`
251 - Y'\ :sub:`23`
252 * - start + 12:
253 - Y'\ :sub:`30`
254 - Y'\ :sub:`31`
255 - Y'\ :sub:`32`
256 - Y'\ :sub:`33`
257 * - start + 16:
258 - Cb\ :sub:`00`
259 - Cr\ :sub:`00`
260 - Cb\ :sub:`01`
261 - Cr\ :sub:`01`
262 * - start + 20:
263 - Cb\ :sub:`10`
264 - Cr\ :sub:`10`
265 - Cb\ :sub:`11`
266 - Cr\ :sub:`11`
267
268 .. flat-table:: Sample 4x4 NV12M Image
269 :header-rows: 0
270 :stub-columns: 0
271
272 * - start0 + 0:
273 - Y'\ :sub:`00`
274 - Y'\ :sub:`01`
275 - Y'\ :sub:`02`
276 - Y'\ :sub:`03`
277 * - start0 + 4:
278 - Y'\ :sub:`10`
279 - Y'\ :sub:`11`
280 - Y'\ :sub:`12`
281 - Y'\ :sub:`13`
282 * - start0 + 8:
283 - Y'\ :sub:`20`
284 - Y'\ :sub:`21`
285 - Y'\ :sub:`22`
286 - Y'\ :sub:`23`
287 * - start0 + 12:
288 - Y'\ :sub:`30`
289 - Y'\ :sub:`31`
290 - Y'\ :sub:`32`
291 - Y'\ :sub:`33`
292 * -
293 * - start1 + 0:
294 - Cb\ :sub:`00`
295 - Cr\ :sub:`00`
296 - Cb\ :sub:`01`
297 - Cr\ :sub:`01`
298 * - start1 + 4:
299 - Cb\ :sub:`10`
300 - Cr\ :sub:`10`
301 - Cb\ :sub:`11`
302 - Cr\ :sub:`11`
303
304
305 .. _V4L2-PIX-FMT-NV12MT:
306 .. _V4L2-PIX-FMT-NV12MT-16X16:
307 .. _V4L2-PIX-FMT-NV12-4L4:
308 .. _V4L2-PIX-FMT-NV12-16L16:
309 .. _V4L2-PIX-FMT-NV12-32L32:
310 .. _V4L2-PIX-FMT-NV12M-8L128:
311 .. _V4L2-PIX-FMT-NV12-8L128:
312 .. _V4L2-PIX-FMT-MM21:
313
314 Tiled NV12
315 ----------
316
317 Semi-planar YUV 4:2:0 formats, using macroblock tiling. The chroma plane is
318 subsampled by 2 in each direction. Chroma lines contain half the number of
319 pixels and the same number of bytes as luma lines, and the chroma plane
320 contains half the number of lines of the luma plane. Each tile follows the
321 previous one linearly in memory (from left to right, top to bottom).
322
323 ``V4L2_PIX_FMT_NV12MT_16X16`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
324 pixels in 2D 16x16 tiles, and stores tiles linearly in memory.
325 The line stride and image height must be aligned to a multiple of 16.
326 The layouts of the luma and chroma planes are identical.
327
328 ``V4L2_PIX_FMT_NV12MT`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
329 pixels in 2D 64x32 tiles, and stores 2x2 groups of tiles in
330 Z-order in memory, alternating Z and mirrored Z shapes horizontally.
331 The line stride must be a multiple of 128 pixels to ensure an
332 integer number of Z shapes. The image height must be a multiple of 32 pixels.
333 If the vertical resolution is an odd number of tiles, the last row of
334 tiles is stored in linear order. The layouts of the luma and chroma
335 planes are identical.
336
337 .. _nv12mt:
338
339 .. kernel-figure:: nv12mt.svg
340 :alt: nv12mt.svg
341 :align: center
342
343 V4L2_PIX_FMT_NV12MT macroblock Z shape memory layout
344
345 .. _nv12mt_ex:
346
347 .. kernel-figure:: nv12mt_example.svg
348 :alt: nv12mt_example.svg
349 :align: center
350
351 Example V4L2_PIX_FMT_NV12MT memory layout of tiles
352
353 ``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores
354 tiles linearly in memory. The line stride and image height must be
355 aligned to a multiple of 4. The layouts of the luma and chroma planes are
356 identical.
357
358 ``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores
359 tiles linearly in memory. The line stride and image height must be
360 aligned to a multiple of 16. The layouts of the luma and chroma planes are
361 identical.
362
363 ``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores
364 tiles linearly in memory. The line stride and image height must be
365 aligned to a multiple of 32. The layouts of the luma and chroma planes are
366 identical.
367
368 ``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
369 pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
370 The image height must be aligned to a multiple of 128.
371 The layouts of the luma and chroma planes are identical.
372
373 ``V4L2_PIX_FMT_NV12_8L128`` is similar to ``V4L2_PIX_FMT_NV12M_8L128`` but stores
374 two planes in one memory.
375
376 ``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels
377 in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the
378 image height must be aligned to a multiple of 32. The number of luma and chroma
379 tiles are identical, even though the tile size differ. The image is formed of
380 two non-contiguous planes.
381
382
383 .. _V4L2-PIX-FMT-NV15-4L4:
384 .. _V4L2-PIX-FMT-NV12M-10BE-8L128:
385 .. _V4L2-PIX-FMT-NV12-10BE-8L128:
386 .. _V4L2-PIX-FMT-MT2110T:
387 .. _V4L2-PIX-FMT-MT2110R:
388
389 Tiled NV15
390 ----------
391
392 ``V4L2_PIX_FMT_NV15_4L4`` Semi-planar 10-bit YUV 4:2:0 formats, using 4x4 tiling.
393 All components are packed without any padding between each other.
394 As a side-effect, each group of 4 components are stored over 5 bytes
395 (YYYY or UVUV = 4 * 10 bits = 40 bits = 5 bytes).
396
397 ``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores
398 10 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory.
399 the data is arranged in big endian order.
400 The image height must be aligned to a multiple of 128.
401 The layouts of the luma and chroma planes are identical.
402 Note the tile size is 8bytes multiplied by 128 bytes,
403 it means that the low bits and high bits of one pixel may be in different tiles.
404 The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like
405 this (for luma):
406 byte 0: Y0(bits 9-2)
407 byte 1: Y0(bits 1-0) Y1(bits 9-4)
408 byte 2: Y1(bits 3-0) Y2(bits 9-6)
409 byte 3: Y2(bits 5-0) Y3(bits 9-8)
410 byte 4: Y3(bits 7-0)
411
412 ``V4L2_PIX_FMT_NV12_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M_10BE_8L128`` but stores
413 two planes in one memory.
414
415 ``V4L2_PIX_FMT_MT2110T`` is one of Mediatek packed 10bit YUV 4:2:0 formats.
416 It is fully packed 10bit 4:2:0 format like NV15 (15 bits per pixel), except
417 that the lower two bits data is stored in separate partitions. The format is
418 composed of 16x32 luma tiles, and 16x16 chroma tiles. Each tiles is 640 bytes
419 long, divided into 8 partitions of 80 bytes. The first 16 bytes of the
420 partition represent the 2 least significant bits of pixel data. The remaining
421 64 bytes represent the 8 most significant bits of pixel data.
422
423 .. kernel-figure:: mt2110t.svg
424 :alt: mt2110t.svg
425 :align: center
426
427 Layout of MT2110T Chroma Tile
428
429 Filtering out the upper part of each partitions results in a valid
430 ``V4L2_PIX_FMT_MM21`` frame. A partition is a sub-tile of size 16 x 4. The
431 lower two bits is said to be tiled since each bytes contains the lower two
432 bits of the column of for pixel matching the same index. The chroma tiles
433 only have 4 partitions.
434
435 .. flat-table:: MT2110T LSB bits layout
436 :header-rows: 1
437 :stub-columns: 1
438
439 * -
440 - start + 0:
441 - start + 1:
442 - . . .
443 - start\ +\ 15:
444 * - Bits 1:0
445 - Y'\ :sub:`0:0`
446 - Y'\ :sub:`0:1`
447 - . . .
448 - Y'\ :sub:`0:15`
449 * - Bit 3:2
450 - Y'\ :sub:`1:0`
451 - Y'\ :sub:`1:1`
452 - . . .
453 - Y'\ :sub:`1:15`
454 * - Bits 5:4
455 - Y'\ :sub:`2:0`
456 - Y'\ :sub:`2:1`
457 - . . .
458 - Y'\ :sub:`2:15`
459 * - Bits 7:6
460 - Y'\ :sub:`3:0`
461 - Y'\ :sub:`3:1`
462 - . . .
463 - Y'\ :sub:`3:15`
464
465 ``V4L2_PIX_FMT_MT2110R`` is identical to ``V4L2_PIX_FMT_MT2110T`` except that
466 the least significant two bits layout is in raster order. This means the first byte
467 contains 4 pixels of the first row, with 4 bytes per line.
468
469 .. flat-table:: MT2110R LSB bits layout
470 :header-rows: 2
471 :stub-columns: 1
472
473 * -
474 - :cspan:`3` Byte 0
475 - ...
476 - :cspan:`3` Byte 3
477 * -
478 - 7:6
479 - 5:4
480 - 3:2
481 - 1:0
482 - ...
483 - 7:6
484 - 5:4
485 - 3:2
486 - 1:0
487 * - start + 0:
488 - Y'\ :sub:`0:3`
489 - Y'\ :sub:`0:2`
490 - Y'\ :sub:`0:1`
491 - Y'\ :sub:`0:0`
492 - ...
493 - Y'\ :sub:`0:15`
494 - Y'\ :sub:`0:14`
495 - Y'\ :sub:`0:13`
496 - Y'\ :sub:`0:12`
497 * - start + 4:
498 - Y'\ :sub:`1:3`
499 - Y'\ :sub:`1:2`
500 - Y'\ :sub:`1:1`
501 - Y'\ :sub:`1:0`
502 - ...
503 - Y'\ :sub:`1:15`
504 - Y'\ :sub:`1:14`
505 - Y'\ :sub:`1:13`
506 - Y'\ :sub:`1:12`
507 * - start + 8:
508 - Y'\ :sub:`2:3`
509 - Y'\ :sub:`2:2`
510 - Y'\ :sub:`2:1`
511 - Y'\ :sub:`2:0`
512 - ...
513 - Y'\ :sub:`2:15`
514 - Y'\ :sub:`2:14`
515 - Y'\ :sub:`2:13`
516 - Y'\ :sub:`2:12`
517 * - start\ +\ 12:
518 - Y'\ :sub:`3:3`
519 - Y'\ :sub:`3:2`
520 - Y'\ :sub:`3:1`
521 - Y'\ :sub:`3:0`
522 - ...
523 - Y'\ :sub:`3:15`
524 - Y'\ :sub:`3:14`
525 - Y'\ :sub:`3:13`
526 - Y'\ :sub:`3:12`
527
528
529 .. _V4L2-PIX-FMT-NV16:
530 .. _V4L2-PIX-FMT-NV61:
531 .. _V4L2-PIX-FMT-NV16M:
532 .. _V4L2-PIX-FMT-NV61M:
533
534 NV16, NV61, NV16M and NV61M
535 ---------------------------
536
537 Semi-planar YUV 4:2:2 formats. The chroma plane is subsampled by 2 in the
538 horizontal direction. Chroma lines contain half the number of pixels and the
539 same number of bytes as luma lines, and the chroma plane contains the same
540 number of lines as the luma plane.
541
542 .. flat-table:: Sample 4x4 NV16 Image
543 :header-rows: 0
544 :stub-columns: 0
545
546 * - start + 0:
547 - Y'\ :sub:`00`
548 - Y'\ :sub:`01`
549 - Y'\ :sub:`02`
550 - Y'\ :sub:`03`
551 * - start + 4:
552 - Y'\ :sub:`10`
553 - Y'\ :sub:`11`
554 - Y'\ :sub:`12`
555 - Y'\ :sub:`13`
556 * - start + 8:
557 - Y'\ :sub:`20`
558 - Y'\ :sub:`21`
559 - Y'\ :sub:`22`
560 - Y'\ :sub:`23`
561 * - start + 12:
562 - Y'\ :sub:`30`
563 - Y'\ :sub:`31`
564 - Y'\ :sub:`32`
565 - Y'\ :sub:`33`
566 * - start + 16:
567 - Cb\ :sub:`00`
568 - Cr\ :sub:`00`
569 - Cb\ :sub:`01`
570 - Cr\ :sub:`01`
571 * - start + 20:
572 - Cb\ :sub:`10`
573 - Cr\ :sub:`10`
574 - Cb\ :sub:`11`
575 - Cr\ :sub:`11`
576 * - start + 24:
577 - Cb\ :sub:`20`
578 - Cr\ :sub:`20`
579 - Cb\ :sub:`21`
580 - Cr\ :sub:`21`
581 * - start + 28:
582 - Cb\ :sub:`30`
583 - Cr\ :sub:`30`
584 - Cb\ :sub:`31`
585 - Cr\ :sub:`31`
586
587 .. flat-table:: Sample 4x4 NV16M Image
588 :header-rows: 0
589 :stub-columns: 0
590
591 * - start0 + 0:
592 - Y'\ :sub:`00`
593 - Y'\ :sub:`01`
594 - Y'\ :sub:`02`
595 - Y'\ :sub:`03`
596 * - start0 + 4:
597 - Y'\ :sub:`10`
598 - Y'\ :sub:`11`
599 - Y'\ :sub:`12`
600 - Y'\ :sub:`13`
601 * - start0 + 8:
602 - Y'\ :sub:`20`
603 - Y'\ :sub:`21`
604 - Y'\ :sub:`22`
605 - Y'\ :sub:`23`
606 * - start0 + 12:
607 - Y'\ :sub:`30`
608 - Y'\ :sub:`31`
609 - Y'\ :sub:`32`
610 - Y'\ :sub:`33`
611 * -
612 * - start1 + 0:
613 - Cb\ :sub:`00`
614 - Cr\ :sub:`00`
615 - Cb\ :sub:`02`
616 - Cr\ :sub:`02`
617 * - start1 + 4:
618 - Cb\ :sub:`10`
619 - Cr\ :sub:`10`
620 - Cb\ :sub:`12`
621 - Cr\ :sub:`12`
622 * - start1 + 8:
623 - Cb\ :sub:`20`
624 - Cr\ :sub:`20`
625 - Cb\ :sub:`22`
626 - Cr\ :sub:`22`
627 * - start1 + 12:
628 - Cb\ :sub:`30`
629 - Cr\ :sub:`30`
630 - Cb\ :sub:`32`
631 - Cr\ :sub:`32`
632
633
634 .. _V4L2-PIX-FMT-NV24:
635 .. _V4L2-PIX-FMT-NV42:
636
637 NV24 and NV42
638 -------------
639
640 Semi-planar YUV 4:4:4 formats. The chroma plane is not subsampled.
641 Chroma lines contain the same number of pixels and twice the
642 number of bytes as luma lines, and the chroma plane contains the same
643 number of lines as the luma plane.
644
645 .. flat-table:: Sample 4x4 NV24 Image
646 :header-rows: 0
647 :stub-columns: 0
648
649 * - start + 0:
650 - Y'\ :sub:`00`
651 - Y'\ :sub:`01`
652 - Y'\ :sub:`02`
653 - Y'\ :sub:`03`
654 * - start + 4:
655 - Y'\ :sub:`10`
656 - Y'\ :sub:`11`
657 - Y'\ :sub:`12`
658 - Y'\ :sub:`13`
659 * - start + 8:
660 - Y'\ :sub:`20`
661 - Y'\ :sub:`21`
662 - Y'\ :sub:`22`
663 - Y'\ :sub:`23`
664 * - start + 12:
665 - Y'\ :sub:`30`
666 - Y'\ :sub:`31`
667 - Y'\ :sub:`32`
668 - Y'\ :sub:`33`
669 * - start + 16:
670 - Cb\ :sub:`00`
671 - Cr\ :sub:`00`
672 - Cb\ :sub:`01`
673 - Cr\ :sub:`01`
674 - Cb\ :sub:`02`
675 - Cr\ :sub:`02`
676 - Cb\ :sub:`03`
677 - Cr\ :sub:`03`
678 * - start + 24:
679 - Cb\ :sub:`10`
680 - Cr\ :sub:`10`
681 - Cb\ :sub:`11`
682 - Cr\ :sub:`11`
683 - Cb\ :sub:`12`
684 - Cr\ :sub:`12`
685 - Cb\ :sub:`13`
686 - Cr\ :sub:`13`
687 * - start + 32:
688 - Cb\ :sub:`20`
689 - Cr\ :sub:`20`
690 - Cb\ :sub:`21`
691 - Cr\ :sub:`21`
692 - Cb\ :sub:`22`
693 - Cr\ :sub:`22`
694 - Cb\ :sub:`23`
695 - Cr\ :sub:`23`
696 * - start + 40:
697 - Cb\ :sub:`30`
698 - Cr\ :sub:`30`
699 - Cb\ :sub:`31`
700 - Cr\ :sub:`31`
701 - Cb\ :sub:`32`
702 - Cr\ :sub:`32`
703 - Cb\ :sub:`33`
704 - Cr\ :sub:`33`
705
706 .. _V4L2_PIX_FMT_P010:
707 .. _V4L2-PIX-FMT-P010-4L4:
708
709 P010 and tiled P010
710 -------------------
711
712 P010 is like NV12 with 10 bits per component, expanded to 16 bits.
713 Data in the 10 high bits, zeros in the 6 low bits, arranged in little endian order.
714
715 .. flat-table:: Sample 4x4 P010 Image
716 :header-rows: 0
717 :stub-columns: 0
718
719 * - start + 0:
720 - Y'\ :sub:`00`
721 - Y'\ :sub:`01`
722 - Y'\ :sub:`02`
723 - Y'\ :sub:`03`
724 * - start + 8:
725 - Y'\ :sub:`10`
726 - Y'\ :sub:`11`
727 - Y'\ :sub:`12`
728 - Y'\ :sub:`13`
729 * - start + 16:
730 - Y'\ :sub:`20`
731 - Y'\ :sub:`21`
732 - Y'\ :sub:`22`
733 - Y'\ :sub:`23`
734 * - start + 24:
735 - Y'\ :sub:`30`
736 - Y'\ :sub:`31`
737 - Y'\ :sub:`32`
738 - Y'\ :sub:`33`
739 * - start + 32:
740 - Cb\ :sub:`00`
741 - Cr\ :sub:`00`
742 - Cb\ :sub:`01`
743 - Cr\ :sub:`01`
744 * - start + 40:
745 - Cb\ :sub:`10`
746 - Cr\ :sub:`10`
747 - Cb\ :sub:`11`
748 - Cr\ :sub:`11`
749
750 .. _V4L2-PIX-FMT-P012:
751 .. _V4L2-PIX-FMT-P012M:
752
753 P012 and P012M
754 --------------
755
756 P012 is like NV12 with 12 bits per component, expanded to 16 bits.
757 Data in the 12 high bits, zeros in the 4 low bits, arranged in little endian order.
758
759 .. flat-table:: Sample 4x4 P012 Image
760 :header-rows: 0
761 :stub-columns: 0
762
763 * - start + 0:
764 - Y'\ :sub:`00`
765 - Y'\ :sub:`01`
766 - Y'\ :sub:`02`
767 - Y'\ :sub:`03`
768 * - start + 8:
769 - Y'\ :sub:`10`
770 - Y'\ :sub:`11`
771 - Y'\ :sub:`12`
772 - Y'\ :sub:`13`
773 * - start + 16:
774 - Y'\ :sub:`20`
775 - Y'\ :sub:`21`
776 - Y'\ :sub:`22`
777 - Y'\ :sub:`23`
778 * - start + 24:
779 - Y'\ :sub:`30`
780 - Y'\ :sub:`31`
781 - Y'\ :sub:`32`
782 - Y'\ :sub:`33`
783 * - start + 32:
784 - Cb\ :sub:`00`
785 - Cr\ :sub:`00`
786 - Cb\ :sub:`01`
787 - Cr\ :sub:`01`
788 * - start + 40:
789 - Cb\ :sub:`10`
790 - Cr\ :sub:`10`
791 - Cb\ :sub:`11`
792 - Cr\ :sub:`11`
793
794 .. flat-table:: Sample 4x4 P012M Image
795 :header-rows: 0
796 :stub-columns: 0
797
798 * - start0 + 0:
799 - Y'\ :sub:`00`
800 - Y'\ :sub:`01`
801 - Y'\ :sub:`02`
802 - Y'\ :sub:`03`
803 * - start0 + 8:
804 - Y'\ :sub:`10`
805 - Y'\ :sub:`11`
806 - Y'\ :sub:`12`
807 - Y'\ :sub:`13`
808 * - start0 + 16:
809 - Y'\ :sub:`20`
810 - Y'\ :sub:`21`
811 - Y'\ :sub:`22`
812 - Y'\ :sub:`23`
813 * - start0 + 24:
814 - Y'\ :sub:`30`
815 - Y'\ :sub:`31`
816 - Y'\ :sub:`32`
817 - Y'\ :sub:`33`
818 * -
819 * - start1 + 0:
820 - Cb\ :sub:`00`
821 - Cr\ :sub:`00`
822 - Cb\ :sub:`01`
823 - Cr\ :sub:`01`
824 * - start1 + 8:
825 - Cb\ :sub:`10`
826 - Cr\ :sub:`10`
827 - Cb\ :sub:`11`
828 - Cr\ :sub:`11`
829
830
831 Fully Planar YUV Formats
832 ========================
833
834 These formats store the Y, Cb and Cr components in three separate planes. The
835 luma plane comes first, and the order of the two chroma planes varies between
836 formats. The two chroma planes always use the same subsampling.
837
838 For memory contiguous formats, the number of padding pixels at the end of the
839 chroma lines is identical to the padding of the luma lines. The chroma line
840 stride (in bytes) is thus equal to the luma line stride divided by the
841 horizontal subsampling factor. Vertical subsampling doesn't affect the line
842 stride.
843
844 For non-contiguous formats, no constraints are enforced by the format on the
845 relationship between the luma and chroma line padding and stride.
846
847 All components are stored with the same number of bits per component.
848
849 ``V4L2_PIX_FMT_P010_4L4`` stores pixels in 4x4 tiles, and stores tiles linearly
850 in memory. The line stride must be aligned to multiple of 8 and image height to
851 a multiple of 4. The layouts of the luma and chroma planes are identical.
852
853 .. raw:: latex
854
855 \small
856
857 .. tabularcolumns:: |p{5.0cm}|p{1.1cm}|p{1.5cm}|p{2.2cm}|p{1.2cm}|p{3.7cm}|
858
859 .. flat-table:: Overview of Fully Planar YUV Formats
860 :header-rows: 1
861 :stub-columns: 0
862
863 * - Identifier
864 - Code
865 - Bits per component
866 - Subsampling
867 - Planes order [4]_
868 - Contiguous [5]_
869
870 * - V4L2_PIX_FMT_YUV410
871 - 'YUV9'
872 - 8
873 - 4:1:0
874 - Y, Cb, Cr
875 - Yes
876 * - V4L2_PIX_FMT_YVU410
877 - 'YVU9'
878 - 8
879 - 4:1:0
880 - Y, Cr, Cb
881 - Yes
882 * - V4L2_PIX_FMT_YUV411P
883 - '411P'
884 - 8
885 - 4:1:1
886 - Y, Cb, Cr
887 - Yes
888 * - V4L2_PIX_FMT_YUV420M
889 - 'YM12'
890 - 8
891 - 4:2:0
892 - Y, Cb, Cr
893 - No
894 * - V4L2_PIX_FMT_YVU420M
895 - 'YM21'
896 - 8
897 - 4:2:0
898 - Y, Cr, Cb
899 - No
900 * - V4L2_PIX_FMT_YUV420
901 - 'YU12'
902 - 8
903 - 4:2:0
904 - Y, Cb, Cr
905 - Yes
906 * - V4L2_PIX_FMT_YVU420
907 - 'YV12'
908 - 8
909 - 4:2:0
910 - Y, Cr, Cb
911 - Yes
912 * - V4L2_PIX_FMT_YUV422P
913 - '422P'
914 - 8
915 - 4:2:2
916 - Y, Cb, Cr
917 - Yes
918 * - V4L2_PIX_FMT_YUV422M
919 - 'YM16'
920 - 8
921 - 4:2:2
922 - Y, Cb, Cr
923 - No
924 * - V4L2_PIX_FMT_YVU422M
925 - 'YM61'
926 - 8
927 - 4:2:2
928 - Y, Cr, Cb
929 - No
930 * - V4L2_PIX_FMT_YUV444M
931 - 'YM24'
932 - 8
933 - 4:4:4
934 - Y, Cb, Cr
935 - No
936 * - V4L2_PIX_FMT_YVU444M
937 - 'YM42'
938 - 8
939 - 4:4:4
940 - Y, Cr, Cb
941 - No
942
943 .. raw:: latex
944
945 \normalsize
946
947 .. [4] Order of luma and chroma planes
948 .. [5] Indicates if planes have to be contiguous in memory or can be
949 disjoint
950
951
952 **Color Sample Location:**
953 Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
954 horizontally.
955
956 .. _V4L2-PIX-FMT-YUV410:
957 .. _V4L2-PIX-FMT-YVU410:
958
959 YUV410 and YVU410
960 -----------------
961
962 Planar YUV 4:1:0 formats. The chroma planes are subsampled by 4 in each
963 direction. Chroma lines contain a quarter of the number of pixels and bytes of
964 the luma lines, and the chroma planes contain a quarter of the number of lines
965 of the luma plane.
966
967 .. flat-table:: Sample 4x4 YUV410 Image
968 :header-rows: 0
969 :stub-columns: 0
970
971 * - start + 0:
972 - Y'\ :sub:`00`
973 - Y'\ :sub:`01`
974 - Y'\ :sub:`02`
975 - Y'\ :sub:`03`
976 * - start + 4:
977 - Y'\ :sub:`10`
978 - Y'\ :sub:`11`
979 - Y'\ :sub:`12`
980 - Y'\ :sub:`13`
981 * - start + 8:
982 - Y'\ :sub:`20`
983 - Y'\ :sub:`21`
984 - Y'\ :sub:`22`
985 - Y'\ :sub:`23`
986 * - start + 12:
987 - Y'\ :sub:`30`
988 - Y'\ :sub:`31`
989 - Y'\ :sub:`32`
990 - Y'\ :sub:`33`
991 * - start + 16:
992 - Cr\ :sub:`00`
993 * - start + 17:
994 - Cb\ :sub:`00`
995
996
997 .. _V4L2-PIX-FMT-YUV411P:
998
999 YUV411P
1000 -------
1001
1002 Planar YUV 4:1:1 formats. The chroma planes are subsampled by 4 in the
1003 horizontal direction. Chroma lines contain a quarter of the number of pixels
1004 and bytes of the luma lines, and the chroma planes contain the same number of
1005 lines as the luma plane.
1006
1007 .. flat-table:: Sample 4x4 YUV411P Image
1008 :header-rows: 0
1009 :stub-columns: 0
1010
1011 * - start + 0:
1012 - Y'\ :sub:`00`
1013 - Y'\ :sub:`01`
1014 - Y'\ :sub:`02`
1015 - Y'\ :sub:`03`
1016 * - start + 4:
1017 - Y'\ :sub:`10`
1018 - Y'\ :sub:`11`
1019 - Y'\ :sub:`12`
1020 - Y'\ :sub:`13`
1021 * - start + 8:
1022 - Y'\ :sub:`20`
1023 - Y'\ :sub:`21`
1024 - Y'\ :sub:`22`
1025 - Y'\ :sub:`23`
1026 * - start + 12:
1027 - Y'\ :sub:`30`
1028 - Y'\ :sub:`31`
1029 - Y'\ :sub:`32`
1030 - Y'\ :sub:`33`
1031 * - start + 16:
1032 - Cb\ :sub:`00`
1033 * - start + 17:
1034 - Cb\ :sub:`10`
1035 * - start + 18:
1036 - Cb\ :sub:`20`
1037 * - start + 19:
1038 - Cb\ :sub:`30`
1039 * - start + 20:
1040 - Cr\ :sub:`00`
1041 * - start + 21:
1042 - Cr\ :sub:`10`
1043 * - start + 22:
1044 - Cr\ :sub:`20`
1045 * - start + 23:
1046 - Cr\ :sub:`30`
1047
1048
1049 .. _V4L2-PIX-FMT-YUV420:
1050 .. _V4L2-PIX-FMT-YVU420:
1051 .. _V4L2-PIX-FMT-YUV420M:
1052 .. _V4L2-PIX-FMT-YVU420M:
1053
1054 YUV420, YVU420, YUV420M and YVU420M
1055 -----------------------------------
1056
1057 Planar YUV 4:2:0 formats. The chroma planes are subsampled by 2 in each
1058 direction. Chroma lines contain half of the number of pixels and bytes of the
1059 luma lines, and the chroma planes contain half of the number of lines of the
1060 luma plane.
1061
1062 .. flat-table:: Sample 4x4 YUV420 Image
1063 :header-rows: 0
1064 :stub-columns: 0
1065
1066 * - start + 0:
1067 - Y'\ :sub:`00`
1068 - Y'\ :sub:`01`
1069 - Y'\ :sub:`02`
1070 - Y'\ :sub:`03`
1071 * - start + 4:
1072 - Y'\ :sub:`10`
1073 - Y'\ :sub:`11`
1074 - Y'\ :sub:`12`
1075 - Y'\ :sub:`13`
1076 * - start + 8:
1077 - Y'\ :sub:`20`
1078 - Y'\ :sub:`21`
1079 - Y'\ :sub:`22`
1080 - Y'\ :sub:`23`
1081 * - start + 12:
1082 - Y'\ :sub:`30`
1083 - Y'\ :sub:`31`
1084 - Y'\ :sub:`32`
1085 - Y'\ :sub:`33`
1086 * - start + 16:
1087 - Cr\ :sub:`00`
1088 - Cr\ :sub:`01`
1089 * - start + 18:
1090 - Cr\ :sub:`10`
1091 - Cr\ :sub:`11`
1092 * - start + 20:
1093 - Cb\ :sub:`00`
1094 - Cb\ :sub:`01`
1095 * - start + 22:
1096 - Cb\ :sub:`10`
1097 - Cb\ :sub:`11`
1098
1099 .. flat-table:: Sample 4x4 YUV420M Image
1100 :header-rows: 0
1101 :stub-columns: 0
1102
1103 * - start0 + 0:
1104 - Y'\ :sub:`00`
1105 - Y'\ :sub:`01`
1106 - Y'\ :sub:`02`
1107 - Y'\ :sub:`03`
1108 * - start0 + 4:
1109 - Y'\ :sub:`10`
1110 - Y'\ :sub:`11`
1111 - Y'\ :sub:`12`
1112 - Y'\ :sub:`13`
1113 * - start0 + 8:
1114 - Y'\ :sub:`20`
1115 - Y'\ :sub:`21`
1116 - Y'\ :sub:`22`
1117 - Y'\ :sub:`23`
1118 * - start0 + 12:
1119 - Y'\ :sub:`30`
1120 - Y'\ :sub:`31`
1121 - Y'\ :sub:`32`
1122 - Y'\ :sub:`33`
1123 * -
1124 * - start1 + 0:
1125 - Cb\ :sub:`00`
1126 - Cb\ :sub:`01`
1127 * - start1 + 2:
1128 - Cb\ :sub:`10`
1129 - Cb\ :sub:`11`
1130 * -
1131 * - start2 + 0:
1132 - Cr\ :sub:`00`
1133 - Cr\ :sub:`01`
1134 * - start2 + 2:
1135 - Cr\ :sub:`10`
1136 - Cr\ :sub:`11`
1137
1138
1139 .. _V4L2-PIX-FMT-YUV422P:
1140 .. _V4L2-PIX-FMT-YUV422M:
1141 .. _V4L2-PIX-FMT-YVU422M:
1142
1143 YUV422P, YUV422M and YVU422M
1144 ----------------------------
1145
1146 Planar YUV 4:2:2 formats. The chroma planes are subsampled by 2 in the
1147 horizontal direction. Chroma lines contain half of the number of pixels and
1148 bytes of the luma lines, and the chroma planes contain the same number of lines
1149 as the luma plane.
1150
1151 .. flat-table:: Sample 4x4 YUV422P Image
1152 :header-rows: 0
1153 :stub-columns: 0
1154
1155 * - start + 0:
1156 - Y'\ :sub:`00`
1157 - Y'\ :sub:`01`
1158 - Y'\ :sub:`02`
1159 - Y'\ :sub:`03`
1160 * - start + 4:
1161 - Y'\ :sub:`10`
1162 - Y'\ :sub:`11`
1163 - Y'\ :sub:`12`
1164 - Y'\ :sub:`13`
1165 * - start + 8:
1166 - Y'\ :sub:`20`
1167 - Y'\ :sub:`21`
1168 - Y'\ :sub:`22`
1169 - Y'\ :sub:`23`
1170 * - start + 12:
1171 - Y'\ :sub:`30`
1172 - Y'\ :sub:`31`
1173 - Y'\ :sub:`32`
1174 - Y'\ :sub:`33`
1175 * - start + 16:
1176 - Cb\ :sub:`00`
1177 - Cb\ :sub:`01`
1178 * - start + 18:
1179 - Cb\ :sub:`10`
1180 - Cb\ :sub:`11`
1181 * - start + 20:
1182 - Cb\ :sub:`20`
1183 - Cb\ :sub:`21`
1184 * - start + 22:
1185 - Cb\ :sub:`30`
1186 - Cb\ :sub:`31`
1187 * - start + 24:
1188 - Cr\ :sub:`00`
1189 - Cr\ :sub:`01`
1190 * - start + 26:
1191 - Cr\ :sub:`10`
1192 - Cr\ :sub:`11`
1193 * - start + 28:
1194 - Cr\ :sub:`20`
1195 - Cr\ :sub:`21`
1196 * - start + 30:
1197 - Cr\ :sub:`30`
1198 - Cr\ :sub:`31`
1199
1200 .. flat-table:: Sample 4x4 YUV422M Image
1201 :header-rows: 0
1202 :stub-columns: 0
1203
1204 * - start0 + 0:
1205 - Y'\ :sub:`00`
1206 - Y'\ :sub:`01`
1207 - Y'\ :sub:`02`
1208 - Y'\ :sub:`03`
1209 * - start0 + 4:
1210 - Y'\ :sub:`10`
1211 - Y'\ :sub:`11`
1212 - Y'\ :sub:`12`
1213 - Y'\ :sub:`13`
1214 * - start0 + 8:
1215 - Y'\ :sub:`20`
1216 - Y'\ :sub:`21`
1217 - Y'\ :sub:`22`
1218 - Y'\ :sub:`23`
1219 * - start0 + 12:
1220 - Y'\ :sub:`30`
1221 - Y'\ :sub:`31`
1222 - Y'\ :sub:`32`
1223 - Y'\ :sub:`33`
1224 * -
1225 * - start1 + 0:
1226 - Cb\ :sub:`00`
1227 - Cb\ :sub:`01`
1228 * - start1 + 2:
1229 - Cb\ :sub:`10`
1230 - Cb\ :sub:`11`
1231 * - start1 + 4:
1232 - Cb\ :sub:`20`
1233 - Cb\ :sub:`21`
1234 * - start1 + 6:
1235 - Cb\ :sub:`30`
1236 - Cb\ :sub:`31`
1237 * -
1238 * - start2 + 0:
1239 - Cr\ :sub:`00`
1240 - Cr\ :sub:`01`
1241 * - start2 + 2:
1242 - Cr\ :sub:`10`
1243 - Cr\ :sub:`11`
1244 * - start2 + 4:
1245 - Cr\ :sub:`20`
1246 - Cr\ :sub:`21`
1247 * - start2 + 6:
1248 - Cr\ :sub:`30`
1249 - Cr\ :sub:`31`
1250
1251
1252 .. _V4L2-PIX-FMT-YUV444M:
1253 .. _V4L2-PIX-FMT-YVU444M:
1254
1255 YUV444M and YVU444M
1256 -------------------
1257
1258 Planar YUV 4:4:4 formats. The chroma planes are no subsampled. Chroma lines
1259 contain the same number of pixels and bytes of the luma lines, and the chroma
1260 planes contain the same number of lines as the luma plane.
1261
1262 .. flat-table:: Sample 4x4 YUV444M Image
1263 :header-rows: 0
1264 :stub-columns: 0
1265
1266 * - start0 + 0:
1267 - Y'\ :sub:`00`
1268 - Y'\ :sub:`01`
1269 - Y'\ :sub:`02`
1270 - Y'\ :sub:`03`
1271 * - start0 + 4:
1272 - Y'\ :sub:`10`
1273 - Y'\ :sub:`11`
1274 - Y'\ :sub:`12`
1275 - Y'\ :sub:`13`
1276 * - start0 + 8:
1277 - Y'\ :sub:`20`
1278 - Y'\ :sub:`21`
1279 - Y'\ :sub:`22`
1280 - Y'\ :sub:`23`
1281 * - start0 + 12:
1282 - Y'\ :sub:`30`
1283 - Y'\ :sub:`31`
1284 - Y'\ :sub:`32`
1285 - Y'\ :sub:`33`
1286 * -
1287 * - start1 + 0:
1288 - Cb\ :sub:`00`
1289 - Cb\ :sub:`01`
1290 - Cb\ :sub:`02`
1291 - Cb\ :sub:`03`
1292 * - start1 + 4:
1293 - Cb\ :sub:`10`
1294 - Cb\ :sub:`11`
1295 - Cb\ :sub:`12`
1296 - Cb\ :sub:`13`
1297 * - start1 + 8:
1298 - Cb\ :sub:`20`
1299 - Cb\ :sub:`21`
1300 - Cb\ :sub:`22`
1301 - Cb\ :sub:`23`
1302 * - start1 + 12:
1303 - Cb\ :sub:`20`
1304 - Cb\ :sub:`21`
1305 - Cb\ :sub:`32`
1306 - Cb\ :sub:`33`
1307 * -
1308 * - start2 + 0:
1309 - Cr\ :sub:`00`
1310 - Cr\ :sub:`01`
1311 - Cr\ :sub:`02`
1312 - Cr\ :sub:`03`
1313 * - start2 + 4:
1314 - Cr\ :sub:`10`
1315 - Cr\ :sub:`11`
1316 - Cr\ :sub:`12`
1317 - Cr\ :sub:`13`
1318 * - start2 + 8:
1319 - Cr\ :sub:`20`
1320 - Cr\ :sub:`21`
1321 - Cr\ :sub:`22`
1322 - Cr\ :sub:`23`
1323 * - start2 + 12:
1324 - Cr\ :sub:`30`
1325 - Cr\ :sub:`31`
1326 - Cr\ :sub:`32`
1327 - Cr\ :sub:`33`
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