1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later 2 3.. planar-yuv: 4 5****************** 6Planar YUV formats 7****************** 8 9Planar formats split luma and chroma data in separate memory regions. They 10exist 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 19Within a plane, components are stored in pixel order, which may be linear or 20tiled. Padding may be supported at the end of the lines, and the line stride of 21the chroma planes may be constrained by the line stride of the luma plane. 22 23Some planar formats allow planes to be placed in independent memory locations. 24They 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 26and applications that support the multi-planar API, described in 27:ref:`planar-apis`. Unless explicitly documented as supporting non-contiguous 28planes, formats require the planes to follow each other immediately in memory. 29 30 31Semi-Planar YUV Formats 32======================= 33 34These formats are commonly referred to as NV formats (NV12, NV16, ...). They 35use two planes, and store the luma components in the first plane and the chroma 36components in the second plane. The Cb and Cr components are interleaved in the 37chroma plane, with Cb and Cr always stored in pairs. The chroma order is 38exposed as different formats. 39 40For memory contiguous formats, the number of padding pixels at the end of the 41chroma lines is identical to the padding of the luma lines. Without horizontal 42subsampling, the chroma line stride (in bytes) is thus equal to twice the luma 43line stride. With horizontal subsampling by 2, the chroma line stride is equal 44to the luma line stride. Vertical subsampling doesn't affect the line stride. 45 46For non-contiguous formats, no constraints are enforced by the format on the 47relationship between the luma and chroma line padding and stride. 48 49All 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_NV16 113 - 'NV16' 114 - 8 115 - 4:2:2 116 - Cb, Cr 117 - Yes 118 - Linear 119 * - V4L2_PIX_FMT_NV61 120 - 'NV61' 121 - 8 122 - 4:2:2 123 - Cr, Cb 124 - Yes 125 - Linear 126 * - V4L2_PIX_FMT_NV16M 127 - 'NM16' 128 - 8 129 - 4:2:2 130 - Cb, Cr 131 - No 132 - Linear 133 * - V4L2_PIX_FMT_NV61M 134 - 'NM61' 135 - 8 136 - 4:2:2 137 - Cr, Cb 138 - No 139 - Linear 140 * - V4L2_PIX_FMT_NV24 141 - 'NV24' 142 - 8 143 - 4:4:4 144 - Cb, Cr 145 - Yes 146 - Linear 147 * - V4L2_PIX_FMT_NV42 148 - 'NV42' 149 - 8 150 - 4:4:4 151 - Cr, Cb 152 - Yes 153 - Linear 154 155.. raw:: latex 156 157 \normalsize 158 159.. [1] Order of chroma samples in the second plane 160.. [2] Indicates if planes have to be contiguous in memory or can be 161 disjoint 162.. [3] Macroblock size in pixels 163 164 165**Color Sample Location:** 166Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>` 167horizontally. 168 169 170.. _V4L2-PIX-FMT-NV12: 171.. _V4L2-PIX-FMT-NV21: 172.. _V4L2-PIX-FMT-NV12M: 173.. _V4L2-PIX-FMT-NV21M: 174 175NV12, NV21, NV12M and NV21M 176--------------------------- 177 178Semi-planar YUV 4:2:0 formats. The chroma plane is subsampled by 2 in each 179direction. Chroma lines contain half the number of pixels and the same number 180of bytes as luma lines, and the chroma plane contains half the number of lines 181of the luma plane. 182 183.. flat-table:: Sample 4x4 NV12 Image 184 :header-rows: 0 185 :stub-columns: 0 186 187 * - start + 0: 188 - Y'\ :sub:`00` 189 - Y'\ :sub:`01` 190 - Y'\ :sub:`02` 191 - Y'\ :sub:`03` 192 * - start + 4: 193 - Y'\ :sub:`10` 194 - Y'\ :sub:`11` 195 - Y'\ :sub:`12` 196 - Y'\ :sub:`13` 197 * - start + 8: 198 - Y'\ :sub:`20` 199 - Y'\ :sub:`21` 200 - Y'\ :sub:`22` 201 - Y'\ :sub:`23` 202 * - start + 12: 203 - Y'\ :sub:`30` 204 - Y'\ :sub:`31` 205 - Y'\ :sub:`32` 206 - Y'\ :sub:`33` 207 * - start + 16: 208 - Cb\ :sub:`00` 209 - Cr\ :sub:`00` 210 - Cb\ :sub:`01` 211 - Cr\ :sub:`01` 212 * - start + 20: 213 - Cb\ :sub:`10` 214 - Cr\ :sub:`10` 215 - Cb\ :sub:`11` 216 - Cr\ :sub:`11` 217 218.. flat-table:: Sample 4x4 NV12M Image 219 :header-rows: 0 220 :stub-columns: 0 221 222 * - start0 + 0: 223 - Y'\ :sub:`00` 224 - Y'\ :sub:`01` 225 - Y'\ :sub:`02` 226 - Y'\ :sub:`03` 227 * - start0 + 4: 228 - Y'\ :sub:`10` 229 - Y'\ :sub:`11` 230 - Y'\ :sub:`12` 231 - Y'\ :sub:`13` 232 * - start0 + 8: 233 - Y'\ :sub:`20` 234 - Y'\ :sub:`21` 235 - Y'\ :sub:`22` 236 - Y'\ :sub:`23` 237 * - start0 + 12: 238 - Y'\ :sub:`30` 239 - Y'\ :sub:`31` 240 - Y'\ :sub:`32` 241 - Y'\ :sub:`33` 242 * - 243 * - start1 + 0: 244 - Cb\ :sub:`00` 245 - Cr\ :sub:`00` 246 - Cb\ :sub:`01` 247 - Cr\ :sub:`01` 248 * - start1 + 4: 249 - Cb\ :sub:`10` 250 - Cr\ :sub:`10` 251 - Cb\ :sub:`11` 252 - Cr\ :sub:`11` 253 254 255.. _V4L2-PIX-FMT-NV12MT: 256.. _V4L2-PIX-FMT-NV12MT-16X16: 257.. _V4L2-PIX-FMT-NV12-4L4: 258.. _V4L2-PIX-FMT-NV12-16L16: 259.. _V4L2-PIX-FMT-NV12-32L32: 260.. _V4L2-PIX-FMT-NV12M-8L128: 261.. _V4L2-PIX-FMT-NV12M-10BE-8L128: 262.. _V4L2-PIX-FMT-MM21: 263 264Tiled NV12 265---------- 266 267Semi-planar YUV 4:2:0 formats, using macroblock tiling. The chroma plane is 268subsampled by 2 in each direction. Chroma lines contain half the number of 269pixels and the same number of bytes as luma lines, and the chroma plane 270contains half the number of lines of the luma plane. Each tile follows the 271previous one linearly in memory (from left to right, top to bottom). 272 273``V4L2_PIX_FMT_NV12MT_16X16`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 274pixels in 2D 16x16 tiles, and stores tiles linearly in memory. 275The line stride and image height must be aligned to a multiple of 16. 276The layouts of the luma and chroma planes are identical. 277 278``V4L2_PIX_FMT_NV12MT`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 279pixels in 2D 64x32 tiles, and stores 2x2 groups of tiles in 280Z-order in memory, alternating Z and mirrored Z shapes horizontally. 281The line stride must be a multiple of 128 pixels to ensure an 282integer number of Z shapes. The image height must be a multiple of 32 pixels. 283If the vertical resolution is an odd number of tiles, the last row of 284tiles is stored in linear order. The layouts of the luma and chroma 285planes are identical. 286 287``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores 288tiles linearly in memory. The line stride and image height must be 289aligned to a multiple of 4. The layouts of the luma and chroma planes are 290identical. 291 292``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores 293tiles linearly in memory. The line stride and image height must be 294aligned to a multiple of 16. The layouts of the luma and chroma planes are 295identical. 296 297``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores 298tiles linearly in memory. The line stride and image height must be 299aligned to a multiple of 32. The layouts of the luma and chroma planes are 300identical. 301 302``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 303pixels in 2D 8x128 tiles, and stores tiles linearly in memory. 304The image height must be aligned to a multiple of 128. 305The layouts of the luma and chroma planes are identical. 306 307``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 30810 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory. 309the data is arranged in big endian order. 310The image height must be aligned to a multiple of 128. 311The layouts of the luma and chroma planes are identical. 312Note the tile size is 8bytes multiplied by 128 bytes, 313it means that the low bits and high bits of one pixel may be in different tiles. 314The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like 315this (for luma): 316byte 0: Y0(bits 9-2) 317byte 1: Y0(bits 1-0) Y1(bits 9-4) 318byte 2: Y1(bits 3-0) Y2(bits 9-6) 319byte 3: Y2(bits 5-0) Y3(bits 9-8) 320byte 4: Y3(bits 7-0) 321 322``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels 323in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the 324image height must be aligned to a multiple of 32. The number of luma and chroma 325tiles are identical, even though the tile size differ. The image is formed of 326two non-contiguous planes. 327 328.. _nv12mt: 329 330.. kernel-figure:: nv12mt.svg 331 :alt: nv12mt.svg 332 :align: center 333 334 V4L2_PIX_FMT_NV12MT macroblock Z shape memory layout 335 336.. _nv12mt_ex: 337 338.. kernel-figure:: nv12mt_example.svg 339 :alt: nv12mt_example.svg 340 :align: center 341 342 Example V4L2_PIX_FMT_NV12MT memory layout of tiles 343 344 345.. _V4L2-PIX-FMT-NV16: 346.. _V4L2-PIX-FMT-NV61: 347.. _V4L2-PIX-FMT-NV16M: 348.. _V4L2-PIX-FMT-NV61M: 349 350NV16, NV61, NV16M and NV61M 351--------------------------- 352 353Semi-planar YUV 4:2:2 formats. The chroma plane is subsampled by 2 in the 354horizontal direction. Chroma lines contain half the number of pixels and the 355same number of bytes as luma lines, and the chroma plane contains the same 356number of lines as the luma plane. 357 358.. flat-table:: Sample 4x4 NV16 Image 359 :header-rows: 0 360 :stub-columns: 0 361 362 * - start + 0: 363 - Y'\ :sub:`00` 364 - Y'\ :sub:`01` 365 - Y'\ :sub:`02` 366 - Y'\ :sub:`03` 367 * - start + 4: 368 - Y'\ :sub:`10` 369 - Y'\ :sub:`11` 370 - Y'\ :sub:`12` 371 - Y'\ :sub:`13` 372 * - start + 8: 373 - Y'\ :sub:`20` 374 - Y'\ :sub:`21` 375 - Y'\ :sub:`22` 376 - Y'\ :sub:`23` 377 * - start + 12: 378 - Y'\ :sub:`30` 379 - Y'\ :sub:`31` 380 - Y'\ :sub:`32` 381 - Y'\ :sub:`33` 382 * - start + 16: 383 - Cb\ :sub:`00` 384 - Cr\ :sub:`00` 385 - Cb\ :sub:`01` 386 - Cr\ :sub:`01` 387 * - start + 20: 388 - Cb\ :sub:`10` 389 - Cr\ :sub:`10` 390 - Cb\ :sub:`11` 391 - Cr\ :sub:`11` 392 * - start + 24: 393 - Cb\ :sub:`20` 394 - Cr\ :sub:`20` 395 - Cb\ :sub:`21` 396 - Cr\ :sub:`21` 397 * - start + 28: 398 - Cb\ :sub:`30` 399 - Cr\ :sub:`30` 400 - Cb\ :sub:`31` 401 - Cr\ :sub:`31` 402 403.. flat-table:: Sample 4x4 NV16M Image 404 :header-rows: 0 405 :stub-columns: 0 406 407 * - start0 + 0: 408 - Y'\ :sub:`00` 409 - Y'\ :sub:`01` 410 - Y'\ :sub:`02` 411 - Y'\ :sub:`03` 412 * - start0 + 4: 413 - Y'\ :sub:`10` 414 - Y'\ :sub:`11` 415 - Y'\ :sub:`12` 416 - Y'\ :sub:`13` 417 * - start0 + 8: 418 - Y'\ :sub:`20` 419 - Y'\ :sub:`21` 420 - Y'\ :sub:`22` 421 - Y'\ :sub:`23` 422 * - start0 + 12: 423 - Y'\ :sub:`30` 424 - Y'\ :sub:`31` 425 - Y'\ :sub:`32` 426 - Y'\ :sub:`33` 427 * - 428 * - start1 + 0: 429 - Cb\ :sub:`00` 430 - Cr\ :sub:`00` 431 - Cb\ :sub:`02` 432 - Cr\ :sub:`02` 433 * - start1 + 4: 434 - Cb\ :sub:`10` 435 - Cr\ :sub:`10` 436 - Cb\ :sub:`12` 437 - Cr\ :sub:`12` 438 * - start1 + 8: 439 - Cb\ :sub:`20` 440 - Cr\ :sub:`20` 441 - Cb\ :sub:`22` 442 - Cr\ :sub:`22` 443 * - start1 + 12: 444 - Cb\ :sub:`30` 445 - Cr\ :sub:`30` 446 - Cb\ :sub:`32` 447 - Cr\ :sub:`32` 448 449 450.. _V4L2-PIX-FMT-NV24: 451.. _V4L2-PIX-FMT-NV42: 452 453NV24 and NV42 454------------- 455 456Semi-planar YUV 4:4:4 formats. The chroma plane is not subsampled. 457Chroma lines contain the same number of pixels and twice the 458number of bytes as luma lines, and the chroma plane contains the same 459number of lines as the luma plane. 460 461.. flat-table:: Sample 4x4 NV24 Image 462 :header-rows: 0 463 :stub-columns: 0 464 465 * - start + 0: 466 - Y'\ :sub:`00` 467 - Y'\ :sub:`01` 468 - Y'\ :sub:`02` 469 - Y'\ :sub:`03` 470 * - start + 4: 471 - Y'\ :sub:`10` 472 - Y'\ :sub:`11` 473 - Y'\ :sub:`12` 474 - Y'\ :sub:`13` 475 * - start + 8: 476 - Y'\ :sub:`20` 477 - Y'\ :sub:`21` 478 - Y'\ :sub:`22` 479 - Y'\ :sub:`23` 480 * - start + 12: 481 - Y'\ :sub:`30` 482 - Y'\ :sub:`31` 483 - Y'\ :sub:`32` 484 - Y'\ :sub:`33` 485 * - start + 16: 486 - Cb\ :sub:`00` 487 - Cr\ :sub:`00` 488 - Cb\ :sub:`01` 489 - Cr\ :sub:`01` 490 - Cb\ :sub:`02` 491 - Cr\ :sub:`02` 492 - Cb\ :sub:`03` 493 - Cr\ :sub:`03` 494 * - start + 24: 495 - Cb\ :sub:`10` 496 - Cr\ :sub:`10` 497 - Cb\ :sub:`11` 498 - Cr\ :sub:`11` 499 - Cb\ :sub:`12` 500 - Cr\ :sub:`12` 501 - Cb\ :sub:`13` 502 - Cr\ :sub:`13` 503 * - start + 32: 504 - Cb\ :sub:`20` 505 - Cr\ :sub:`20` 506 - Cb\ :sub:`21` 507 - Cr\ :sub:`21` 508 - Cb\ :sub:`22` 509 - Cr\ :sub:`22` 510 - Cb\ :sub:`23` 511 - Cr\ :sub:`23` 512 * - start + 40: 513 - Cb\ :sub:`30` 514 - Cr\ :sub:`30` 515 - Cb\ :sub:`31` 516 - Cr\ :sub:`31` 517 - Cb\ :sub:`32` 518 - Cr\ :sub:`32` 519 - Cb\ :sub:`33` 520 - Cr\ :sub:`33` 521 522 523Fully Planar YUV Formats 524======================== 525 526These formats store the Y, Cb and Cr components in three separate planes. The 527luma plane comes first, and the order of the two chroma planes varies between 528formats. The two chroma planes always use the same subsampling. 529 530For memory contiguous formats, the number of padding pixels at the end of the 531chroma lines is identical to the padding of the luma lines. The chroma line 532stride (in bytes) is thus equal to the luma line stride divided by the 533horizontal subsampling factor. Vertical subsampling doesn't affect the line 534stride. 535 536For non-contiguous formats, no constraints are enforced by the format on the 537relationship between the luma and chroma line padding and stride. 538 539All components are stored with the same number of bits per component. 540 541.. raw:: latex 542 543 \small 544 545.. tabularcolumns:: |p{5.0cm}|p{1.1cm}|p{1.5cm}|p{2.2cm}|p{1.2cm}|p{3.7cm}| 546 547.. flat-table:: Overview of Fully Planar YUV Formats 548 :header-rows: 1 549 :stub-columns: 0 550 551 * - Identifier 552 - Code 553 - Bits per component 554 - Subsampling 555 - Planes order [4]_ 556 - Contiguous [5]_ 557 558 * - V4L2_PIX_FMT_YUV410 559 - 'YUV9' 560 - 8 561 - 4:1:0 562 - Y, Cb, Cr 563 - Yes 564 * - V4L2_PIX_FMT_YVU410 565 - 'YVU9' 566 - 8 567 - 4:1:0 568 - Y, Cr, Cb 569 - Yes 570 * - V4L2_PIX_FMT_YUV411P 571 - '411P' 572 - 8 573 - 4:1:1 574 - Y, Cb, Cr 575 - Yes 576 * - V4L2_PIX_FMT_YUV420M 577 - 'YM12' 578 - 8 579 - 4:2:0 580 - Y, Cb, Cr 581 - No 582 * - V4L2_PIX_FMT_YVU420M 583 - 'YM21' 584 - 8 585 - 4:2:0 586 - Y, Cr, Cb 587 - No 588 * - V4L2_PIX_FMT_YUV420 589 - 'YU12' 590 - 8 591 - 4:2:0 592 - Y, Cb, Cr 593 - Yes 594 * - V4L2_PIX_FMT_YVU420 595 - 'YV12' 596 - 8 597 - 4:2:0 598 - Y, Cr, Cb 599 - Yes 600 * - V4L2_PIX_FMT_YUV422P 601 - '422P' 602 - 8 603 - 4:2:2 604 - Y, Cb, Cr 605 - Yes 606 * - V4L2_PIX_FMT_YUV422M 607 - 'YM16' 608 - 8 609 - 4:2:2 610 - Y, Cb, Cr 611 - No 612 * - V4L2_PIX_FMT_YVU422M 613 - 'YM61' 614 - 8 615 - 4:2:2 616 - Y, Cr, Cb 617 - No 618 * - V4L2_PIX_FMT_YUV444M 619 - 'YM24' 620 - 8 621 - 4:4:4 622 - Y, Cb, Cr 623 - No 624 * - V4L2_PIX_FMT_YVU444M 625 - 'YM42' 626 - 8 627 - 4:4:4 628 - Y, Cr, Cb 629 - No 630 631.. raw:: latex 632 633 \normalsize 634 635.. [4] Order of luma and chroma planes 636.. [5] Indicates if planes have to be contiguous in memory or can be 637 disjoint 638 639 640**Color Sample Location:** 641Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>` 642horizontally. 643 644.. _V4L2-PIX-FMT-YUV410: 645.. _V4L2-PIX-FMT-YVU410: 646 647YUV410 and YVU410 648----------------- 649 650Planar YUV 4:1:0 formats. The chroma planes are subsampled by 4 in each 651direction. Chroma lines contain a quarter of the number of pixels and bytes of 652the luma lines, and the chroma planes contain a quarter of the number of lines 653of the luma plane. 654 655.. flat-table:: Sample 4x4 YUV410 Image 656 :header-rows: 0 657 :stub-columns: 0 658 659 * - start + 0: 660 - Y'\ :sub:`00` 661 - Y'\ :sub:`01` 662 - Y'\ :sub:`02` 663 - Y'\ :sub:`03` 664 * - start + 4: 665 - Y'\ :sub:`10` 666 - Y'\ :sub:`11` 667 - Y'\ :sub:`12` 668 - Y'\ :sub:`13` 669 * - start + 8: 670 - Y'\ :sub:`20` 671 - Y'\ :sub:`21` 672 - Y'\ :sub:`22` 673 - Y'\ :sub:`23` 674 * - start + 12: 675 - Y'\ :sub:`30` 676 - Y'\ :sub:`31` 677 - Y'\ :sub:`32` 678 - Y'\ :sub:`33` 679 * - start + 16: 680 - Cr\ :sub:`00` 681 * - start + 17: 682 - Cb\ :sub:`00` 683 684 685.. _V4L2-PIX-FMT-YUV411P: 686 687YUV411P 688------- 689 690Planar YUV 4:1:1 formats. The chroma planes are subsampled by 4 in the 691horizontal direction. Chroma lines contain a quarter of the number of pixels 692and bytes of the luma lines, and the chroma planes contain the same number of 693lines as the luma plane. 694 695.. flat-table:: Sample 4x4 YUV411P Image 696 :header-rows: 0 697 :stub-columns: 0 698 699 * - start + 0: 700 - Y'\ :sub:`00` 701 - Y'\ :sub:`01` 702 - Y'\ :sub:`02` 703 - Y'\ :sub:`03` 704 * - start + 4: 705 - Y'\ :sub:`10` 706 - Y'\ :sub:`11` 707 - Y'\ :sub:`12` 708 - Y'\ :sub:`13` 709 * - start + 8: 710 - Y'\ :sub:`20` 711 - Y'\ :sub:`21` 712 - Y'\ :sub:`22` 713 - Y'\ :sub:`23` 714 * - start + 12: 715 - Y'\ :sub:`30` 716 - Y'\ :sub:`31` 717 - Y'\ :sub:`32` 718 - Y'\ :sub:`33` 719 * - start + 16: 720 - Cb\ :sub:`00` 721 * - start + 17: 722 - Cb\ :sub:`10` 723 * - start + 18: 724 - Cb\ :sub:`20` 725 * - start + 19: 726 - Cb\ :sub:`30` 727 * - start + 20: 728 - Cr\ :sub:`00` 729 * - start + 21: 730 - Cr\ :sub:`10` 731 * - start + 22: 732 - Cr\ :sub:`20` 733 * - start + 23: 734 - Cr\ :sub:`30` 735 736 737.. _V4L2-PIX-FMT-YUV420: 738.. _V4L2-PIX-FMT-YVU420: 739.. _V4L2-PIX-FMT-YUV420M: 740.. _V4L2-PIX-FMT-YVU420M: 741 742YUV420, YVU420, YUV420M and YVU420M 743----------------------------------- 744 745Planar YUV 4:2:0 formats. The chroma planes are subsampled by 2 in each 746direction. Chroma lines contain half of the number of pixels and bytes of the 747luma lines, and the chroma planes contain half of the number of lines of the 748luma plane. 749 750.. flat-table:: Sample 4x4 YUV420 Image 751 :header-rows: 0 752 :stub-columns: 0 753 754 * - start + 0: 755 - Y'\ :sub:`00` 756 - Y'\ :sub:`01` 757 - Y'\ :sub:`02` 758 - Y'\ :sub:`03` 759 * - start + 4: 760 - Y'\ :sub:`10` 761 - Y'\ :sub:`11` 762 - Y'\ :sub:`12` 763 - Y'\ :sub:`13` 764 * - start + 8: 765 - Y'\ :sub:`20` 766 - Y'\ :sub:`21` 767 - Y'\ :sub:`22` 768 - Y'\ :sub:`23` 769 * - start + 12: 770 - Y'\ :sub:`30` 771 - Y'\ :sub:`31` 772 - Y'\ :sub:`32` 773 - Y'\ :sub:`33` 774 * - start + 16: 775 - Cr\ :sub:`00` 776 - Cr\ :sub:`01` 777 * - start + 18: 778 - Cr\ :sub:`10` 779 - Cr\ :sub:`11` 780 * - start + 20: 781 - Cb\ :sub:`00` 782 - Cb\ :sub:`01` 783 * - start + 22: 784 - Cb\ :sub:`10` 785 - Cb\ :sub:`11` 786 787.. flat-table:: Sample 4x4 YUV420M Image 788 :header-rows: 0 789 :stub-columns: 0 790 791 * - start0 + 0: 792 - Y'\ :sub:`00` 793 - Y'\ :sub:`01` 794 - Y'\ :sub:`02` 795 - Y'\ :sub:`03` 796 * - start0 + 4: 797 - Y'\ :sub:`10` 798 - Y'\ :sub:`11` 799 - Y'\ :sub:`12` 800 - Y'\ :sub:`13` 801 * - start0 + 8: 802 - Y'\ :sub:`20` 803 - Y'\ :sub:`21` 804 - Y'\ :sub:`22` 805 - Y'\ :sub:`23` 806 * - start0 + 12: 807 - Y'\ :sub:`30` 808 - Y'\ :sub:`31` 809 - Y'\ :sub:`32` 810 - Y'\ :sub:`33` 811 * - 812 * - start1 + 0: 813 - Cb\ :sub:`00` 814 - Cb\ :sub:`01` 815 * - start1 + 2: 816 - Cb\ :sub:`10` 817 - Cb\ :sub:`11` 818 * - 819 * - start2 + 0: 820 - Cr\ :sub:`00` 821 - Cr\ :sub:`01` 822 * - start2 + 2: 823 - Cr\ :sub:`10` 824 - Cr\ :sub:`11` 825 826 827.. _V4L2-PIX-FMT-YUV422P: 828.. _V4L2-PIX-FMT-YUV422M: 829.. _V4L2-PIX-FMT-YVU422M: 830 831YUV422P, YUV422M and YVU422M 832---------------------------- 833 834Planar YUV 4:2:2 formats. The chroma planes are subsampled by 2 in the 835horizontal direction. Chroma lines contain half of the number of pixels and 836bytes of the luma lines, and the chroma planes contain the same number of lines 837as the luma plane. 838 839.. flat-table:: Sample 4x4 YUV422P Image 840 :header-rows: 0 841 :stub-columns: 0 842 843 * - start + 0: 844 - Y'\ :sub:`00` 845 - Y'\ :sub:`01` 846 - Y'\ :sub:`02` 847 - Y'\ :sub:`03` 848 * - start + 4: 849 - Y'\ :sub:`10` 850 - Y'\ :sub:`11` 851 - Y'\ :sub:`12` 852 - Y'\ :sub:`13` 853 * - start + 8: 854 - Y'\ :sub:`20` 855 - Y'\ :sub:`21` 856 - Y'\ :sub:`22` 857 - Y'\ :sub:`23` 858 * - start + 12: 859 - Y'\ :sub:`30` 860 - Y'\ :sub:`31` 861 - Y'\ :sub:`32` 862 - Y'\ :sub:`33` 863 * - start + 16: 864 - Cb\ :sub:`00` 865 - Cb\ :sub:`01` 866 * - start + 18: 867 - Cb\ :sub:`10` 868 - Cb\ :sub:`11` 869 * - start + 20: 870 - Cb\ :sub:`20` 871 - Cb\ :sub:`21` 872 * - start + 22: 873 - Cb\ :sub:`30` 874 - Cb\ :sub:`31` 875 * - start + 24: 876 - Cr\ :sub:`00` 877 - Cr\ :sub:`01` 878 * - start + 26: 879 - Cr\ :sub:`10` 880 - Cr\ :sub:`11` 881 * - start + 28: 882 - Cr\ :sub:`20` 883 - Cr\ :sub:`21` 884 * - start + 30: 885 - Cr\ :sub:`30` 886 - Cr\ :sub:`31` 887 888.. flat-table:: Sample 4x4 YUV422M Image 889 :header-rows: 0 890 :stub-columns: 0 891 892 * - start0 + 0: 893 - Y'\ :sub:`00` 894 - Y'\ :sub:`01` 895 - Y'\ :sub:`02` 896 - Y'\ :sub:`03` 897 * - start0 + 4: 898 - Y'\ :sub:`10` 899 - Y'\ :sub:`11` 900 - Y'\ :sub:`12` 901 - Y'\ :sub:`13` 902 * - start0 + 8: 903 - Y'\ :sub:`20` 904 - Y'\ :sub:`21` 905 - Y'\ :sub:`22` 906 - Y'\ :sub:`23` 907 * - start0 + 12: 908 - Y'\ :sub:`30` 909 - Y'\ :sub:`31` 910 - Y'\ :sub:`32` 911 - Y'\ :sub:`33` 912 * - 913 * - start1 + 0: 914 - Cb\ :sub:`00` 915 - Cb\ :sub:`01` 916 * - start1 + 2: 917 - Cb\ :sub:`10` 918 - Cb\ :sub:`11` 919 * - start1 + 4: 920 - Cb\ :sub:`20` 921 - Cb\ :sub:`21` 922 * - start1 + 6: 923 - Cb\ :sub:`30` 924 - Cb\ :sub:`31` 925 * - 926 * - start2 + 0: 927 - Cr\ :sub:`00` 928 - Cr\ :sub:`01` 929 * - start2 + 2: 930 - Cr\ :sub:`10` 931 - Cr\ :sub:`11` 932 * - start2 + 4: 933 - Cr\ :sub:`20` 934 - Cr\ :sub:`21` 935 * - start2 + 6: 936 - Cr\ :sub:`30` 937 - Cr\ :sub:`31` 938 939 940.. _V4L2-PIX-FMT-YUV444M: 941.. _V4L2-PIX-FMT-YVU444M: 942 943YUV444M and YVU444M 944------------------- 945 946Planar YUV 4:4:4 formats. The chroma planes are no subsampled. Chroma lines 947contain the same number of pixels and bytes of the luma lines, and the chroma 948planes contain the same number of lines as the luma plane. 949 950.. flat-table:: Sample 4x4 YUV444M Image 951 :header-rows: 0 952 :stub-columns: 0 953 954 * - start0 + 0: 955 - Y'\ :sub:`00` 956 - Y'\ :sub:`01` 957 - Y'\ :sub:`02` 958 - Y'\ :sub:`03` 959 * - start0 + 4: 960 - Y'\ :sub:`10` 961 - Y'\ :sub:`11` 962 - Y'\ :sub:`12` 963 - Y'\ :sub:`13` 964 * - start0 + 8: 965 - Y'\ :sub:`20` 966 - Y'\ :sub:`21` 967 - Y'\ :sub:`22` 968 - Y'\ :sub:`23` 969 * - start0 + 12: 970 - Y'\ :sub:`30` 971 - Y'\ :sub:`31` 972 - Y'\ :sub:`32` 973 - Y'\ :sub:`33` 974 * - 975 * - start1 + 0: 976 - Cb\ :sub:`00` 977 - Cb\ :sub:`01` 978 - Cb\ :sub:`02` 979 - Cb\ :sub:`03` 980 * - start1 + 4: 981 - Cb\ :sub:`10` 982 - Cb\ :sub:`11` 983 - Cb\ :sub:`12` 984 - Cb\ :sub:`13` 985 * - start1 + 8: 986 - Cb\ :sub:`20` 987 - Cb\ :sub:`21` 988 - Cb\ :sub:`22` 989 - Cb\ :sub:`23` 990 * - start1 + 12: 991 - Cb\ :sub:`20` 992 - Cb\ :sub:`21` 993 - Cb\ :sub:`32` 994 - Cb\ :sub:`33` 995 * - 996 * - start2 + 0: 997 - Cr\ :sub:`00` 998 - Cr\ :sub:`01` 999 - Cr\ :sub:`02` 1000 - Cr\ :sub:`03` 1001 * - start2 + 4: 1002 - Cr\ :sub:`10` 1003 - Cr\ :sub:`11` 1004 - Cr\ :sub:`12` 1005 - Cr\ :sub:`13` 1006 * - start2 + 8: 1007 - Cr\ :sub:`20` 1008 - Cr\ :sub:`21` 1009 - Cr\ :sub:`22` 1010 - Cr\ :sub:`23` 1011 * - start2 + 12: 1012 - Cr\ :sub:`30` 1013 - Cr\ :sub:`31` 1014 - Cr\ :sub:`32` 1015 - Cr\ :sub:`33` 1016
