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 263Tiled NV12 264---------- 265 266Semi-planar YUV 4:2:0 formats, using macroblock tiling. The chroma plane is 267subsampled by 2 in each direction. Chroma lines contain half the number of 268pixels and the same number of bytes as luma lines, and the chroma plane 269contains half the number of lines of the luma plane. Each tile follows the 270previous one linearly in memory (from left to right, top to bottom). 271 272``V4L2_PIX_FMT_NV12MT_16X16`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 273pixels in 2D 16x16 tiles, and stores tiles linearly in memory. 274The line stride and image height must be aligned to a multiple of 16. 275The layouts of the luma and chroma planes are identical. 276 277``V4L2_PIX_FMT_NV12MT`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 278pixels in 2D 64x32 tiles, and stores 2x2 groups of tiles in 279Z-order in memory, alternating Z and mirrored Z shapes horizontally. 280The line stride must be a multiple of 128 pixels to ensure an 281integer number of Z shapes. The image height must be a multiple of 32 pixels. 282If the vertical resolution is an odd number of tiles, the last row of 283tiles is stored in linear order. The layouts of the luma and chroma 284planes are identical. 285 286``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores 287tiles linearly in memory. The line stride and image height must be 288aligned to a multiple of 4. The layouts of the luma and chroma planes are 289identical. 290 291``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores 292tiles linearly in memory. The line stride and image height must be 293aligned to a multiple of 16. The layouts of the luma and chroma planes are 294identical. 295 296``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores 297tiles linearly in memory. The line stride and image height must be 298aligned to a multiple of 32. The layouts of the luma and chroma planes are 299identical. 300 301``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 302pixels in 2D 8x128 tiles, and stores tiles linearly in memory. 303The image height must be aligned to a multiple of 128. 304The layouts of the luma and chroma planes are identical. 305 306``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores 30710 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory. 308the data is arranged in big endian order. 309The image height must be aligned to a multiple of 128. 310The layouts of the luma and chroma planes are identical. 311Note the tile size is 8bytes multiplied by 128 bytes, 312it means that the low bits and high bits of one pixel may be in different tiles. 313The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like 314this (for luma): 315byte 0: Y0(bits 9-2) 316byte 1: Y0(bits 1-0) Y1(bits 9-4) 317byte 2: Y1(bits 3-0) Y2(bits 9-6) 318byte 3: Y2(bits 5-0) Y3(bits 9-8) 319byte 4: Y3(bits 7-0) 320 321``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels 322in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the 323image height must be aligned to a multiple of 32. The number of luma and chroma 324tiles are identical, even though the tile size differ. The image is formed of 325two non-contiguous planes. 326 327.. _nv12mt: 328 329.. kernel-figure:: nv12mt.svg 330 :alt: nv12mt.svg 331 :align: center 332 333 V4L2_PIX_FMT_NV12MT macroblock Z shape memory layout 334 335.. _nv12mt_ex: 336 337.. kernel-figure:: nv12mt_example.svg 338 :alt: nv12mt_example.svg 339 :align: center 340 341 Example V4L2_PIX_FMT_NV12MT memory layout of tiles 342 343 344.. _V4L2-PIX-FMT-NV16: 345.. _V4L2-PIX-FMT-NV61: 346.. _V4L2-PIX-FMT-NV16M: 347.. _V4L2-PIX-FMT-NV61M: 348 349NV16, NV61, NV16M and NV61M 350--------------------------- 351 352Semi-planar YUV 4:2:2 formats. The chroma plane is subsampled by 2 in the 353horizontal direction. Chroma lines contain half the number of pixels and the 354same number of bytes as luma lines, and the chroma plane contains the same 355number of lines as the luma plane. 356 357.. flat-table:: Sample 4x4 NV16 Image 358 :header-rows: 0 359 :stub-columns: 0 360 361 * - start + 0: 362 - Y'\ :sub:`00` 363 - Y'\ :sub:`01` 364 - Y'\ :sub:`02` 365 - Y'\ :sub:`03` 366 * - start + 4: 367 - Y'\ :sub:`10` 368 - Y'\ :sub:`11` 369 - Y'\ :sub:`12` 370 - Y'\ :sub:`13` 371 * - start + 8: 372 - Y'\ :sub:`20` 373 - Y'\ :sub:`21` 374 - Y'\ :sub:`22` 375 - Y'\ :sub:`23` 376 * - start + 12: 377 - Y'\ :sub:`30` 378 - Y'\ :sub:`31` 379 - Y'\ :sub:`32` 380 - Y'\ :sub:`33` 381 * - start + 16: 382 - Cb\ :sub:`00` 383 - Cr\ :sub:`00` 384 - Cb\ :sub:`01` 385 - Cr\ :sub:`01` 386 * - start + 20: 387 - Cb\ :sub:`10` 388 - Cr\ :sub:`10` 389 - Cb\ :sub:`11` 390 - Cr\ :sub:`11` 391 * - start + 24: 392 - Cb\ :sub:`20` 393 - Cr\ :sub:`20` 394 - Cb\ :sub:`21` 395 - Cr\ :sub:`21` 396 * - start + 28: 397 - Cb\ :sub:`30` 398 - Cr\ :sub:`30` 399 - Cb\ :sub:`31` 400 - Cr\ :sub:`31` 401 402.. flat-table:: Sample 4x4 NV16M Image 403 :header-rows: 0 404 :stub-columns: 0 405 406 * - start0 + 0: 407 - Y'\ :sub:`00` 408 - Y'\ :sub:`01` 409 - Y'\ :sub:`02` 410 - Y'\ :sub:`03` 411 * - start0 + 4: 412 - Y'\ :sub:`10` 413 - Y'\ :sub:`11` 414 - Y'\ :sub:`12` 415 - Y'\ :sub:`13` 416 * - start0 + 8: 417 - Y'\ :sub:`20` 418 - Y'\ :sub:`21` 419 - Y'\ :sub:`22` 420 - Y'\ :sub:`23` 421 * - start0 + 12: 422 - Y'\ :sub:`30` 423 - Y'\ :sub:`31` 424 - Y'\ :sub:`32` 425 - Y'\ :sub:`33` 426 * - 427 * - start1 + 0: 428 - Cb\ :sub:`00` 429 - Cr\ :sub:`00` 430 - Cb\ :sub:`02` 431 - Cr\ :sub:`02` 432 * - start1 + 4: 433 - Cb\ :sub:`10` 434 - Cr\ :sub:`10` 435 - Cb\ :sub:`12` 436 - Cr\ :sub:`12` 437 * - start1 + 8: 438 - Cb\ :sub:`20` 439 - Cr\ :sub:`20` 440 - Cb\ :sub:`22` 441 - Cr\ :sub:`22` 442 * - start1 + 12: 443 - Cb\ :sub:`30` 444 - Cr\ :sub:`30` 445 - Cb\ :sub:`32` 446 - Cr\ :sub:`32` 447 448 449.. _V4L2-PIX-FMT-NV24: 450.. _V4L2-PIX-FMT-NV42: 451 452NV24 and NV42 453------------- 454 455Semi-planar YUV 4:4:4 formats. The chroma plane is not subsampled. 456Chroma lines contain the same number of pixels and twice the 457number of bytes as luma lines, and the chroma plane contains the same 458number of lines as the luma plane. 459 460.. flat-table:: Sample 4x4 NV24 Image 461 :header-rows: 0 462 :stub-columns: 0 463 464 * - start + 0: 465 - Y'\ :sub:`00` 466 - Y'\ :sub:`01` 467 - Y'\ :sub:`02` 468 - Y'\ :sub:`03` 469 * - start + 4: 470 - Y'\ :sub:`10` 471 - Y'\ :sub:`11` 472 - Y'\ :sub:`12` 473 - Y'\ :sub:`13` 474 * - start + 8: 475 - Y'\ :sub:`20` 476 - Y'\ :sub:`21` 477 - Y'\ :sub:`22` 478 - Y'\ :sub:`23` 479 * - start + 12: 480 - Y'\ :sub:`30` 481 - Y'\ :sub:`31` 482 - Y'\ :sub:`32` 483 - Y'\ :sub:`33` 484 * - start + 16: 485 - Cb\ :sub:`00` 486 - Cr\ :sub:`00` 487 - Cb\ :sub:`01` 488 - Cr\ :sub:`01` 489 - Cb\ :sub:`02` 490 - Cr\ :sub:`02` 491 - Cb\ :sub:`03` 492 - Cr\ :sub:`03` 493 * - start + 24: 494 - Cb\ :sub:`10` 495 - Cr\ :sub:`10` 496 - Cb\ :sub:`11` 497 - Cr\ :sub:`11` 498 - Cb\ :sub:`12` 499 - Cr\ :sub:`12` 500 - Cb\ :sub:`13` 501 - Cr\ :sub:`13` 502 * - start + 32: 503 - Cb\ :sub:`20` 504 - Cr\ :sub:`20` 505 - Cb\ :sub:`21` 506 - Cr\ :sub:`21` 507 - Cb\ :sub:`22` 508 - Cr\ :sub:`22` 509 - Cb\ :sub:`23` 510 - Cr\ :sub:`23` 511 * - start + 40: 512 - Cb\ :sub:`30` 513 - Cr\ :sub:`30` 514 - Cb\ :sub:`31` 515 - Cr\ :sub:`31` 516 - Cb\ :sub:`32` 517 - Cr\ :sub:`32` 518 - Cb\ :sub:`33` 519 - Cr\ :sub:`33` 520 521 522Fully Planar YUV Formats 523======================== 524 525These formats store the Y, Cb and Cr components in three separate planes. The 526luma plane comes first, and the order of the two chroma planes varies between 527formats. The two chroma planes always use the same subsampling. 528 529For memory contiguous formats, the number of padding pixels at the end of the 530chroma lines is identical to the padding of the luma lines. The chroma line 531stride (in bytes) is thus equal to the luma line stride divided by the 532horizontal subsampling factor. Vertical subsampling doesn't affect the line 533stride. 534 535For non-contiguous formats, no constraints are enforced by the format on the 536relationship between the luma and chroma line padding and stride. 537 538All components are stored with the same number of bits per component. 539 540.. raw:: latex 541 542 \small 543 544.. tabularcolumns:: |p{5.0cm}|p{1.1cm}|p{1.5cm}|p{2.2cm}|p{1.2cm}|p{3.7cm}| 545 546.. flat-table:: Overview of Fully Planar YUV Formats 547 :header-rows: 1 548 :stub-columns: 0 549 550 * - Identifier 551 - Code 552 - Bits per component 553 - Subsampling 554 - Planes order [4]_ 555 - Contiguous [5]_ 556 557 * - V4L2_PIX_FMT_YUV410 558 - 'YUV9' 559 - 8 560 - 4:1:0 561 - Y, Cb, Cr 562 - Yes 563 * - V4L2_PIX_FMT_YVU410 564 - 'YVU9' 565 - 8 566 - 4:1:0 567 - Y, Cr, Cb 568 - Yes 569 * - V4L2_PIX_FMT_YUV411P 570 - '411P' 571 - 8 572 - 4:1:1 573 - Y, Cb, Cr 574 - Yes 575 * - V4L2_PIX_FMT_YUV420M 576 - 'YM12' 577 - 8 578 - 4:2:0 579 - Y, Cb, Cr 580 - No 581 * - V4L2_PIX_FMT_YVU420M 582 - 'YM21' 583 - 8 584 - 4:2:0 585 - Y, Cr, Cb 586 - No 587 * - V4L2_PIX_FMT_YUV420 588 - 'YU12' 589 - 8 590 - 4:2:0 591 - Y, Cb, Cr 592 - Yes 593 * - V4L2_PIX_FMT_YVU420 594 - 'YV12' 595 - 8 596 - 4:2:0 597 - Y, Cr, Cb 598 - Yes 599 * - V4L2_PIX_FMT_YUV422P 600 - '422P' 601 - 8 602 - 4:2:2 603 - Y, Cb, Cr 604 - Yes 605 * - V4L2_PIX_FMT_YUV422M 606 - 'YM16' 607 - 8 608 - 4:2:2 609 - Y, Cb, Cr 610 - No 611 * - V4L2_PIX_FMT_YVU422M 612 - 'YM61' 613 - 8 614 - 4:2:2 615 - Y, Cr, Cb 616 - No 617 * - V4L2_PIX_FMT_YUV444M 618 - 'YM24' 619 - 8 620 - 4:4:4 621 - Y, Cb, Cr 622 - No 623 * - V4L2_PIX_FMT_YVU444M 624 - 'YM42' 625 - 8 626 - 4:4:4 627 - Y, Cr, Cb 628 - No 629 630.. raw:: latex 631 632 \normalsize 633 634.. [4] Order of luma and chroma planes 635.. [5] Indicates if planes have to be contiguous in memory or can be 636 disjoint 637 638 639**Color Sample Location:** 640Chroma samples are :ref:`interstitially sited<yuv-chroma-centered>` 641horizontally. 642 643.. _V4L2-PIX-FMT-YUV410: 644.. _V4L2-PIX-FMT-YVU410: 645 646YUV410 and YVU410 647----------------- 648 649Planar YUV 4:1:0 formats. The chroma planes are subsampled by 4 in each 650direction. Chroma lines contain a quarter of the number of pixels and bytes of 651the luma lines, and the chroma planes contain a quarter of the number of lines 652of the luma plane. 653 654.. flat-table:: Sample 4x4 YUV410 Image 655 :header-rows: 0 656 :stub-columns: 0 657 658 * - start + 0: 659 - Y'\ :sub:`00` 660 - Y'\ :sub:`01` 661 - Y'\ :sub:`02` 662 - Y'\ :sub:`03` 663 * - start + 4: 664 - Y'\ :sub:`10` 665 - Y'\ :sub:`11` 666 - Y'\ :sub:`12` 667 - Y'\ :sub:`13` 668 * - start + 8: 669 - Y'\ :sub:`20` 670 - Y'\ :sub:`21` 671 - Y'\ :sub:`22` 672 - Y'\ :sub:`23` 673 * - start + 12: 674 - Y'\ :sub:`30` 675 - Y'\ :sub:`31` 676 - Y'\ :sub:`32` 677 - Y'\ :sub:`33` 678 * - start + 16: 679 - Cr\ :sub:`00` 680 * - start + 17: 681 - Cb\ :sub:`00` 682 683 684.. _V4L2-PIX-FMT-YUV411P: 685 686YUV411P 687------- 688 689Planar YUV 4:1:1 formats. The chroma planes are subsampled by 4 in the 690horizontal direction. Chroma lines contain a quarter of the number of pixels 691and bytes of the luma lines, and the chroma planes contain the same number of 692lines as the luma plane. 693 694.. flat-table:: Sample 4x4 YUV411P Image 695 :header-rows: 0 696 :stub-columns: 0 697 698 * - start + 0: 699 - Y'\ :sub:`00` 700 - Y'\ :sub:`01` 701 - Y'\ :sub:`02` 702 - Y'\ :sub:`03` 703 * - start + 4: 704 - Y'\ :sub:`10` 705 - Y'\ :sub:`11` 706 - Y'\ :sub:`12` 707 - Y'\ :sub:`13` 708 * - start + 8: 709 - Y'\ :sub:`20` 710 - Y'\ :sub:`21` 711 - Y'\ :sub:`22` 712 - Y'\ :sub:`23` 713 * - start + 12: 714 - Y'\ :sub:`30` 715 - Y'\ :sub:`31` 716 - Y'\ :sub:`32` 717 - Y'\ :sub:`33` 718 * - start + 16: 719 - Cb\ :sub:`00` 720 * - start + 17: 721 - Cb\ :sub:`10` 722 * - start + 18: 723 - Cb\ :sub:`20` 724 * - start + 19: 725 - Cb\ :sub:`30` 726 * - start + 20: 727 - Cr\ :sub:`00` 728 * - start + 21: 729 - Cr\ :sub:`10` 730 * - start + 22: 731 - Cr\ :sub:`20` 732 * - start + 23: 733 - Cr\ :sub:`30` 734 735 736.. _V4L2-PIX-FMT-YUV420: 737.. _V4L2-PIX-FMT-YVU420: 738.. _V4L2-PIX-FMT-YUV420M: 739.. _V4L2-PIX-FMT-YVU420M: 740 741YUV420, YVU420, YUV420M and YVU420M 742----------------------------------- 743 744Planar YUV 4:2:0 formats. The chroma planes are subsampled by 2 in each 745direction. Chroma lines contain half of the number of pixels and bytes of the 746luma lines, and the chroma planes contain half of the number of lines of the 747luma plane. 748 749.. flat-table:: Sample 4x4 YUV420 Image 750 :header-rows: 0 751 :stub-columns: 0 752 753 * - start + 0: 754 - Y'\ :sub:`00` 755 - Y'\ :sub:`01` 756 - Y'\ :sub:`02` 757 - Y'\ :sub:`03` 758 * - start + 4: 759 - Y'\ :sub:`10` 760 - Y'\ :sub:`11` 761 - Y'\ :sub:`12` 762 - Y'\ :sub:`13` 763 * - start + 8: 764 - Y'\ :sub:`20` 765 - Y'\ :sub:`21` 766 - Y'\ :sub:`22` 767 - Y'\ :sub:`23` 768 * - start + 12: 769 - Y'\ :sub:`30` 770 - Y'\ :sub:`31` 771 - Y'\ :sub:`32` 772 - Y'\ :sub:`33` 773 * - start + 16: 774 - Cr\ :sub:`00` 775 - Cr\ :sub:`01` 776 * - start + 18: 777 - Cr\ :sub:`10` 778 - Cr\ :sub:`11` 779 * - start + 20: 780 - Cb\ :sub:`00` 781 - Cb\ :sub:`01` 782 * - start + 22: 783 - Cb\ :sub:`10` 784 - Cb\ :sub:`11` 785 786.. flat-table:: Sample 4x4 YUV420M Image 787 :header-rows: 0 788 :stub-columns: 0 789 790 * - start0 + 0: 791 - Y'\ :sub:`00` 792 - Y'\ :sub:`01` 793 - Y'\ :sub:`02` 794 - Y'\ :sub:`03` 795 * - start0 + 4: 796 - Y'\ :sub:`10` 797 - Y'\ :sub:`11` 798 - Y'\ :sub:`12` 799 - Y'\ :sub:`13` 800 * - start0 + 8: 801 - Y'\ :sub:`20` 802 - Y'\ :sub:`21` 803 - Y'\ :sub:`22` 804 - Y'\ :sub:`23` 805 * - start0 + 12: 806 - Y'\ :sub:`30` 807 - Y'\ :sub:`31` 808 - Y'\ :sub:`32` 809 - Y'\ :sub:`33` 810 * - 811 * - start1 + 0: 812 - Cb\ :sub:`00` 813 - Cb\ :sub:`01` 814 * - start1 + 2: 815 - Cb\ :sub:`10` 816 - Cb\ :sub:`11` 817 * - 818 * - start2 + 0: 819 - Cr\ :sub:`00` 820 - Cr\ :sub:`01` 821 * - start2 + 2: 822 - Cr\ :sub:`10` 823 - Cr\ :sub:`11` 824 825 826.. _V4L2-PIX-FMT-YUV422P: 827.. _V4L2-PIX-FMT-YUV422M: 828.. _V4L2-PIX-FMT-YVU422M: 829 830YUV422P, YUV422M and YVU422M 831---------------------------- 832 833Planar YUV 4:2:2 formats. The chroma planes are subsampled by 2 in the 834horizontal direction. Chroma lines contain half of the number of pixels and 835bytes of the luma lines, and the chroma planes contain the same number of lines 836as the luma plane. 837 838.. flat-table:: Sample 4x4 YUV422P Image 839 :header-rows: 0 840 :stub-columns: 0 841 842 * - start + 0: 843 - Y'\ :sub:`00` 844 - Y'\ :sub:`01` 845 - Y'\ :sub:`02` 846 - Y'\ :sub:`03` 847 * - start + 4: 848 - Y'\ :sub:`10` 849 - Y'\ :sub:`11` 850 - Y'\ :sub:`12` 851 - Y'\ :sub:`13` 852 * - start + 8: 853 - Y'\ :sub:`20` 854 - Y'\ :sub:`21` 855 - Y'\ :sub:`22` 856 - Y'\ :sub:`23` 857 * - start + 12: 858 - Y'\ :sub:`30` 859 - Y'\ :sub:`31` 860 - Y'\ :sub:`32` 861 - Y'\ :sub:`33` 862 * - start + 16: 863 - Cb\ :sub:`00` 864 - Cb\ :sub:`01` 865 * - start + 18: 866 - Cb\ :sub:`10` 867 - Cb\ :sub:`11` 868 * - start + 20: 869 - Cb\ :sub:`20` 870 - Cb\ :sub:`21` 871 * - start + 22: 872 - Cb\ :sub:`30` 873 - Cb\ :sub:`31` 874 * - start + 24: 875 - Cr\ :sub:`00` 876 - Cr\ :sub:`01` 877 * - start + 26: 878 - Cr\ :sub:`10` 879 - Cr\ :sub:`11` 880 * - start + 28: 881 - Cr\ :sub:`20` 882 - Cr\ :sub:`21` 883 * - start + 30: 884 - Cr\ :sub:`30` 885 - Cr\ :sub:`31` 886 887.. flat-table:: Sample 4x4 YUV422M Image 888 :header-rows: 0 889 :stub-columns: 0 890 891 * - start0 + 0: 892 - Y'\ :sub:`00` 893 - Y'\ :sub:`01` 894 - Y'\ :sub:`02` 895 - Y'\ :sub:`03` 896 * - start0 + 4: 897 - Y'\ :sub:`10` 898 - Y'\ :sub:`11` 899 - Y'\ :sub:`12` 900 - Y'\ :sub:`13` 901 * - start0 + 8: 902 - Y'\ :sub:`20` 903 - Y'\ :sub:`21` 904 - Y'\ :sub:`22` 905 - Y'\ :sub:`23` 906 * - start0 + 12: 907 - Y'\ :sub:`30` 908 - Y'\ :sub:`31` 909 - Y'\ :sub:`32` 910 - Y'\ :sub:`33` 911 * - 912 * - start1 + 0: 913 - Cb\ :sub:`00` 914 - Cb\ :sub:`01` 915 * - start1 + 2: 916 - Cb\ :sub:`10` 917 - Cb\ :sub:`11` 918 * - start1 + 4: 919 - Cb\ :sub:`20` 920 - Cb\ :sub:`21` 921 * - start1 + 6: 922 - Cb\ :sub:`30` 923 - Cb\ :sub:`31` 924 * - 925 * - start2 + 0: 926 - Cr\ :sub:`00` 927 - Cr\ :sub:`01` 928 * - start2 + 2: 929 - Cr\ :sub:`10` 930 - Cr\ :sub:`11` 931 * - start2 + 4: 932 - Cr\ :sub:`20` 933 - Cr\ :sub:`21` 934 * - start2 + 6: 935 - Cr\ :sub:`30` 936 - Cr\ :sub:`31` 937 938 939.. _V4L2-PIX-FMT-YUV444M: 940.. _V4L2-PIX-FMT-YVU444M: 941 942YUV444M and YVU444M 943------------------- 944 945Planar YUV 4:4:4 formats. The chroma planes are no subsampled. Chroma lines 946contain the same number of pixels and bytes of the luma lines, and the chroma 947planes contain the same number of lines as the luma plane. 948 949.. flat-table:: Sample 4x4 YUV444M Image 950 :header-rows: 0 951 :stub-columns: 0 952 953 * - start0 + 0: 954 - Y'\ :sub:`00` 955 - Y'\ :sub:`01` 956 - Y'\ :sub:`02` 957 - Y'\ :sub:`03` 958 * - start0 + 4: 959 - Y'\ :sub:`10` 960 - Y'\ :sub:`11` 961 - Y'\ :sub:`12` 962 - Y'\ :sub:`13` 963 * - start0 + 8: 964 - Y'\ :sub:`20` 965 - Y'\ :sub:`21` 966 - Y'\ :sub:`22` 967 - Y'\ :sub:`23` 968 * - start0 + 12: 969 - Y'\ :sub:`30` 970 - Y'\ :sub:`31` 971 - Y'\ :sub:`32` 972 - Y'\ :sub:`33` 973 * - 974 * - start1 + 0: 975 - Cb\ :sub:`00` 976 - Cb\ :sub:`01` 977 - Cb\ :sub:`02` 978 - Cb\ :sub:`03` 979 * - start1 + 4: 980 - Cb\ :sub:`10` 981 - Cb\ :sub:`11` 982 - Cb\ :sub:`12` 983 - Cb\ :sub:`13` 984 * - start1 + 8: 985 - Cb\ :sub:`20` 986 - Cb\ :sub:`21` 987 - Cb\ :sub:`22` 988 - Cb\ :sub:`23` 989 * - start1 + 12: 990 - Cb\ :sub:`20` 991 - Cb\ :sub:`21` 992 - Cb\ :sub:`32` 993 - Cb\ :sub:`33` 994 * - 995 * - start2 + 0: 996 - Cr\ :sub:`00` 997 - Cr\ :sub:`01` 998 - Cr\ :sub:`02` 999 - Cr\ :sub:`03` 1000 * - start2 + 4: 1001 - Cr\ :sub:`10` 1002 - Cr\ :sub:`11` 1003 - Cr\ :sub:`12` 1004 - Cr\ :sub:`13` 1005 * - start2 + 8: 1006 - Cr\ :sub:`20` 1007 - Cr\ :sub:`21` 1008 - Cr\ :sub:`22` 1009 - Cr\ :sub:`23` 1010 * - start2 + 12: 1011 - Cr\ :sub:`30` 1012 - Cr\ :sub:`31` 1013 - Cr\ :sub:`32` 1014 - Cr\ :sub:`33` 1015
