aboutsummaryrefslogtreecommitdiff
path: root/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst
blob: 0fc74351605aecbe32caba6b3ab13c2030de5be9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later

.. planar-yuv:

******************
Planar YUV formats
******************

Planar formats split luma and chroma data in separate memory regions. They
exist in two variants:

- Semi-planar formats use two planes. The first plane is the luma plane and
  stores the Y components. The second plane is the chroma plane and stores the
  Cb and Cr components interleaved.

- Fully planar formats use three planes to store the Y, Cb and Cr components
  separately.

Within a plane, components are stored in pixel order, which may be linear or
tiled. Padding may be supported at the end of the lines, and the line stride of
the chroma planes may be constrained by the line stride of the luma plane.

Some planar formats allow planes to be placed in independent memory locations.
They are identified by an 'M' suffix in their name (such as in
``V4L2_PIX_FMT_NV12M``). Those formats are intended to be used only in drivers
and applications that support the multi-planar API, described in
:ref:`planar-apis`. Unless explicitly documented as supporting non-contiguous
planes, formats require the planes to follow each other immediately in memory.


Semi-Planar YUV Formats
=======================

These formats are commonly referred to as NV formats (NV12, NV16, ...). They
use two planes, and store the luma components in the first plane and the chroma
components in the second plane. The Cb and Cr components are interleaved in the
chroma plane, with Cb and Cr always stored in pairs. The chroma order is
exposed as different formats.

For memory contiguous formats, the number of padding pixels at the end of the
chroma lines is identical to the padding of the luma lines. Without horizontal
subsampling, the chroma line stride (in bytes) is thus equal to twice the luma
line stride. With horizontal subsampling by 2, the chroma line stride is equal
to the luma line stride. Vertical subsampling doesn't affect the line stride.

For non-contiguous formats, no constraints are enforced by the format on the
relationship between the luma and chroma line padding and stride.

All components are stored with the same number of bits per component.

.. raw:: latex

    \footnotesize

.. tabularcolumns:: |p{5.2cm}|p{1.0cm}|p{1.5cm}|p{1.9cm}|p{1.2cm}|p{1.8cm}|p{2.7cm}|

.. flat-table:: Overview of Semi-Planar YUV Formats
    :header-rows:  1
    :stub-columns: 0

    * - Identifier
      - Code
      - Bits per component
      - Subsampling
      - Chroma order [1]_
      - Contiguous [2]_
      - Tiling [3]_
    * - V4L2_PIX_FMT_NV12
      - 'NV12'
      - 8
      - 4:2:0
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV21
      - 'NV21'
      - 8
      - 4:2:0
      - Cr, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV12M
      - 'NM12'
      - 8
      - 4:2:0
      - Cb, Cr
      - No
      - Linear
    * - V4L2_PIX_FMT_NV21M
      - 'NM21'
      - 8
      - 4:2:0
      - Cr, Cr
      - No
      - Linear
    * - V4L2_PIX_FMT_NV12MT
      - 'TM12'
      - 8
      - 4:2:0
      - Cb, Cr
      - No
      - 64x32 macroblocks

        Horizontal Z order
    * - V4L2_PIX_FMT_NV12MT_16X16
      - 'VM12'
      - 8
      - 4:2:2
      - Cb, Cr
      - No
      - 16x16 macroblocks
    * - V4L2_PIX_FMT_NV16
      - 'NV16'
      - 8
      - 4:2:2
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV61
      - 'NV61'
      - 8
      - 4:2:2
      - Cr, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV16M
      - 'NM16'
      - 8
      - 4:2:2
      - Cb, Cr
      - No
      - Linear
    * - V4L2_PIX_FMT_NV61M
      - 'NM61'
      - 8
      - 4:2:2
      - Cr, Cr
      - No
      - Linear
    * - V4L2_PIX_FMT_NV24
      - 'NV24'
      - 8
      - 4:4:4
      - Cb, Cr
      - Yes
      - Linear
    * - V4L2_PIX_FMT_NV42
      - 'NV42'
      - 8
      - 4:4:4
      - Cr, Cr
      - Yes
      - Linear

.. raw:: latex

    \normalsize

.. [1] Order of chroma samples in the second plane
.. [2] Indicates if planes have to be contiguous in memory or can be
       disjoint
.. [3] Macroblock size in pixels


**Color Sample Location:**
Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
horizontally.


.. _V4L2-PIX-FMT-NV12:
.. _V4L2-PIX-FMT-NV21:
.. _V4L2-PIX-FMT-NV12M:
.. _V4L2-PIX-FMT-NV21M:

NV12, NV21, NV12M and NV21M
---------------------------

Semi-planar YUV 4:2:0 formats. The chroma plane is subsampled by 2 in each
direction. Chroma lines contain half the number of pixels and the same number
of bytes as luma lines, and the chroma plane contains half the number of lines
of the luma plane.

.. flat-table:: Sample 4x4 NV12 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start + 20:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`

.. flat-table:: Sample 4x4 NV12M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start1 + 4:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`


.. _V4L2-PIX-FMT-NV12MT:
.. _V4L2-PIX-FMT-NV12MT-16X16:
.. _V4L2-PIX-FMT-NV12-4L4:
.. _V4L2-PIX-FMT-NV12-16L16:
.. _V4L2-PIX-FMT-NV12-32L32:

Tiled NV12
----------

Semi-planar YUV 4:2:0 formats, using macroblock tiling. The chroma plane is
subsampled by 2 in each direction. Chroma lines contain half the number of
pixels and the same number of bytes as luma lines, and the chroma plane
contains half the number of lines of the luma plane. Each tile follows the
previous one linearly in memory (from left to right, top to bottom).

``V4L2_PIX_FMT_NV12MT_16X16`` stores pixel in 2D 16x16 macroblocks, and stores
macroblocks linearly in memory. The line stride and image height must be
aligned to a multiple of 16. The layouts of the luma and chroma planes are
identical.

``V4L2_PIX_FMT_NV12MT`` stores pixels in 2D 64x32 macroblocks, and stores 2x2
groups of macroblocks in Z-order in memory, alternating Z and mirrored Z shapes
horizontally.  The line stride must be a multiple of 128 pixels to ensure an
integer number of Z shapes. The image height must be a multiple of 32 pixels.
If the vertical resolution is an odd number of macroblocks, the last row of
macroblocks is stored in linear order. The layouts of the luma and chroma
planes are identical.

``V4L2_PIX_FMT_NV12_4L4`` stores pixel in 4x4 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 4. The layouts of the luma and chroma planes are
identical.

``V4L2_PIX_FMT_NV12_16L16`` stores pixel in 16x16 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 16. The layouts of the luma and chroma planes are
identical.

``V4L2_PIX_FMT_NV12_32L32`` stores pixel in 32x32 tiles, and stores
tiles linearly in memory. The line stride and image height must be
aligned to a multiple of 32. The layouts of the luma and chroma planes are
identical.

.. _nv12mt:

.. kernel-figure:: nv12mt.svg
    :alt:    nv12mt.svg
    :align:  center

    V4L2_PIX_FMT_NV12MT macroblock Z shape memory layout

.. _nv12mt_ex:

.. kernel-figure:: nv12mt_example.svg
    :alt:    nv12mt_example.svg
    :align:  center

    Example V4L2_PIX_FMT_NV12MT memory layout of macroblocks


.. _V4L2-PIX-FMT-NV16:
.. _V4L2-PIX-FMT-NV61:
.. _V4L2-PIX-FMT-NV16M:
.. _V4L2-PIX-FMT-NV61M:

NV16, NV61, NV16M and NV61M
---------------------------

Semi-planar YUV 4:2:2 formats. The chroma plane is subsampled by 2 in the
horizontal direction. Chroma lines contain half the number of pixels and the
same number of bytes as luma lines, and the chroma plane contains the same
number of lines as the luma plane.

.. flat-table:: Sample 4x4 NV16 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
    * - start + 20:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`
    * - start + 24:
      - Cb\ :sub:`20`
      - Cr\ :sub:`20`
      - Cb\ :sub:`21`
      - Cr\ :sub:`21`
    * - start + 28:
      - Cb\ :sub:`30`
      - Cr\ :sub:`30`
      - Cb\ :sub:`31`
      - Cr\ :sub:`31`

.. flat-table:: Sample 4x4 NV16M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`02`
      - Cr\ :sub:`02`
    * - start1 + 4:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`12`
      - Cr\ :sub:`12`
    * - start1 + 8:
      - Cb\ :sub:`20`
      - Cr\ :sub:`20`
      - Cb\ :sub:`22`
      - Cr\ :sub:`22`
    * - start1 + 12:
      - Cb\ :sub:`30`
      - Cr\ :sub:`30`
      - Cb\ :sub:`32`
      - Cr\ :sub:`32`


.. _V4L2-PIX-FMT-NV24:
.. _V4L2-PIX-FMT-NV42:

NV24 and NV42
-------------

Semi-planar YUV 4:4:4 formats. The chroma plane is not subsampled.
Chroma lines contain the same number of pixels and twice the
number of bytes as luma lines, and the chroma plane contains the same
number of lines as the luma plane.

.. flat-table:: Sample 4x4 NV24 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cr\ :sub:`00`
      - Cb\ :sub:`01`
      - Cr\ :sub:`01`
      - Cb\ :sub:`02`
      - Cr\ :sub:`02`
      - Cb\ :sub:`03`
      - Cr\ :sub:`03`
    * - start + 24:
      - Cb\ :sub:`10`
      - Cr\ :sub:`10`
      - Cb\ :sub:`11`
      - Cr\ :sub:`11`
      - Cb\ :sub:`12`
      - Cr\ :sub:`12`
      - Cb\ :sub:`13`
      - Cr\ :sub:`13`
    * - start + 32:
      - Cb\ :sub:`20`
      - Cr\ :sub:`20`
      - Cb\ :sub:`21`
      - Cr\ :sub:`21`
      - Cb\ :sub:`22`
      - Cr\ :sub:`22`
      - Cb\ :sub:`23`
      - Cr\ :sub:`23`
    * - start + 40:
      - Cb\ :sub:`30`
      - Cr\ :sub:`30`
      - Cb\ :sub:`31`
      - Cr\ :sub:`31`
      - Cb\ :sub:`32`
      - Cr\ :sub:`32`
      - Cb\ :sub:`33`
      - Cr\ :sub:`33`


Fully Planar YUV Formats
========================

These formats store the Y, Cb and Cr components in three separate planes. The
luma plane comes first, and the order of the two chroma planes varies between
formats. The two chroma planes always use the same subsampling.

For memory contiguous formats, the number of padding pixels at the end of the
chroma lines is identical to the padding of the luma lines. The chroma line
stride (in bytes) is thus equal to the luma line stride divided by the
horizontal subsampling factor. Vertical subsampling doesn't affect the line
stride.

For non-contiguous formats, no constraints are enforced by the format on the
relationship between the luma and chroma line padding and stride.

All components are stored with the same number of bits per component.

.. raw:: latex

    \small

.. tabularcolumns:: |p{5.0cm}|p{1.1cm}|p{1.5cm}|p{2.2cm}|p{1.2cm}|p{3.7cm}|

.. flat-table:: Overview of Fully Planar YUV Formats
    :header-rows:  1
    :stub-columns: 0

    * - Identifier
      - Code
      - Bits per component
      - Subsampling
      - Planes order [4]_
      - Contiguous [5]_

    * - V4L2_PIX_FMT_YUV410
      - 'YUV9'
      - 8
      - 4:1:0
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YVU410
      - 'YVU9'
      - 8
      - 4:1:0
      - Y, Cr, Cb
      - Yes
    * - V4L2_PIX_FMT_YUV411P
      - '411P'
      - 8
      - 4:1:1
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YUV420M
      - 'YM12'
      - 8
      - 4:2:0
      - Y, Cb, Cr
      - No
    * - V4L2_PIX_FMT_YVU420M
      - 'YM21'
      - 8
      - 4:2:0
      - Y, Cr, Cb
      - No
    * - V4L2_PIX_FMT_YUV420
      - 'YU12'
      - 8
      - 4:2:0
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YVU420
      - 'YV12'
      - 8
      - 4:2:0
      - Y, Cr, Cb
      - Yes
    * - V4L2_PIX_FMT_YUV422P
      - '422P'
      - 8
      - 4:2:2
      - Y, Cb, Cr
      - Yes
    * - V4L2_PIX_FMT_YUV422M
      - 'YM16'
      - 8
      - 4:2:2
      - Y, Cb, Cr
      - No
    * - V4L2_PIX_FMT_YVU422M
      - 'YM61'
      - 8
      - 4:2:2
      - Y, Cr, Cb
      - No
    * - V4L2_PIX_FMT_YUV444M
      - 'YM24'
      - 8
      - 4:4:4
      - Y, Cb, Cr
      - No
    * - V4L2_PIX_FMT_YVU444M
      - 'YM42'
      - 8
      - 4:4:4
      - Y, Cr, Cb
      - No

.. raw:: latex

    \normalsize

.. [4] Order of luma and chroma planes
.. [5] Indicates if planes have to be contiguous in memory or can be
       disjoint


**Color Sample Location:**
Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>`
horizontally.

.. _V4L2-PIX-FMT-YUV410:
.. _V4L2-PIX-FMT-YVU410:

YUV410 and YVU410
-----------------

Planar YUV 4:1:0 formats. The chroma planes are subsampled by 4 in each
direction. Chroma lines contain a quarter of the number of pixels and bytes of
the luma lines, and the chroma planes contain a quarter of the number of lines
of the luma plane.

.. flat-table:: Sample 4x4 YUV410 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cr\ :sub:`00`
    * - start + 17:
      - Cb\ :sub:`00`


.. _V4L2-PIX-FMT-YUV411P:

YUV411P
-------

Planar YUV 4:1:1 formats. The chroma planes are subsampled by 4 in the
horizontal direction. Chroma lines contain a quarter of the number of pixels
and bytes of the luma lines, and the chroma planes contain the same number of
lines as the luma plane.

.. flat-table:: Sample 4x4 YUV411P Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
    * - start + 17:
      - Cb\ :sub:`10`
    * - start + 18:
      - Cb\ :sub:`20`
    * - start + 19:
      - Cb\ :sub:`30`
    * - start + 20:
      - Cr\ :sub:`00`
    * - start + 21:
      - Cr\ :sub:`10`
    * - start + 22:
      - Cr\ :sub:`20`
    * - start + 23:
      - Cr\ :sub:`30`


.. _V4L2-PIX-FMT-YUV420:
.. _V4L2-PIX-FMT-YVU420:
.. _V4L2-PIX-FMT-YUV420M:
.. _V4L2-PIX-FMT-YVU420M:

YUV420, YVU420, YUV420M and YVU420M
-----------------------------------

Planar YUV 4:2:0 formats. The chroma planes are subsampled by 2 in each
direction. Chroma lines contain half of the number of pixels and bytes of the
luma lines, and the chroma planes contain half of the number of lines of the
luma plane.

.. flat-table:: Sample 4x4 YUV420 Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start + 18:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
    * - start + 20:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start + 22:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`

.. flat-table:: Sample 4x4 YUV420M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start1 + 2:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
    * -
    * - start2 + 0:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start2 + 2:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`


.. _V4L2-PIX-FMT-YUV422P:
.. _V4L2-PIX-FMT-YUV422M:
.. _V4L2-PIX-FMT-YVU422M:

YUV422P, YUV422M and YVU422M
----------------------------

Planar YUV 4:2:2 formats. The chroma planes are subsampled by 2 in the
horizontal direction. Chroma lines contain half of the number of pixels and
bytes of the luma lines, and the chroma planes contain the same number of lines
as the luma plane.

.. flat-table:: Sample 4x4 YUV422P Image
    :header-rows:  0
    :stub-columns: 0

    * - start + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * - start + 16:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start + 18:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
    * - start + 20:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
    * - start + 22:
      - Cb\ :sub:`30`
      - Cb\ :sub:`31`
    * - start + 24:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start + 26:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
    * - start + 28:
      - Cr\ :sub:`20`
      - Cr\ :sub:`21`
    * - start + 30:
      - Cr\ :sub:`30`
      - Cr\ :sub:`31`

.. flat-table:: Sample 4x4 YUV422M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
    * - start1 + 2:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
    * - start1 + 4:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
    * - start1 + 6:
      - Cb\ :sub:`30`
      - Cb\ :sub:`31`
    * -
    * - start2 + 0:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
    * - start2 + 2:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
    * - start2 + 4:
      - Cr\ :sub:`20`
      - Cr\ :sub:`21`
    * - start2 + 6:
      - Cr\ :sub:`30`
      - Cr\ :sub:`31`


.. _V4L2-PIX-FMT-YUV444M:
.. _V4L2-PIX-FMT-YVU444M:

YUV444M and YVU444M
-------------------

Planar YUV 4:4:4 formats. The chroma planes are no subsampled. Chroma lines
contain the same number of pixels and bytes of the luma lines, and the chroma
planes contain the same number of lines as the luma plane.

.. flat-table:: Sample 4x4 YUV444M Image
    :header-rows:  0
    :stub-columns: 0

    * - start0 + 0:
      - Y'\ :sub:`00`
      - Y'\ :sub:`01`
      - Y'\ :sub:`02`
      - Y'\ :sub:`03`
    * - start0 + 4:
      - Y'\ :sub:`10`
      - Y'\ :sub:`11`
      - Y'\ :sub:`12`
      - Y'\ :sub:`13`
    * - start0 + 8:
      - Y'\ :sub:`20`
      - Y'\ :sub:`21`
      - Y'\ :sub:`22`
      - Y'\ :sub:`23`
    * - start0 + 12:
      - Y'\ :sub:`30`
      - Y'\ :sub:`31`
      - Y'\ :sub:`32`
      - Y'\ :sub:`33`
    * -
    * - start1 + 0:
      - Cb\ :sub:`00`
      - Cb\ :sub:`01`
      - Cb\ :sub:`02`
      - Cb\ :sub:`03`
    * - start1 + 4:
      - Cb\ :sub:`10`
      - Cb\ :sub:`11`
      - Cb\ :sub:`12`
      - Cb\ :sub:`13`
    * - start1 + 8:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
      - Cb\ :sub:`22`
      - Cb\ :sub:`23`
    * - start1 + 12:
      - Cb\ :sub:`20`
      - Cb\ :sub:`21`
      - Cb\ :sub:`32`
      - Cb\ :sub:`33`
    * -
    * - start2 + 0:
      - Cr\ :sub:`00`
      - Cr\ :sub:`01`
      - Cr\ :sub:`02`
      - Cr\ :sub:`03`
    * - start2 + 4:
      - Cr\ :sub:`10`
      - Cr\ :sub:`11`
      - Cr\ :sub:`12`
      - Cr\ :sub:`13`
    * - start2 + 8:
      - Cr\ :sub:`20`
      - Cr\ :sub:`21`
      - Cr\ :sub:`22`
      - Cr\ :sub:`23`
    * - start2 + 12:
      - Cr\ :sub:`30`
      - Cr\ :sub:`31`
      - Cr\ :sub:`32`
      - Cr\ :sub:`33`