Documentation/media/uapi/v4l/pixfmt-y41p.rst

   1 .. -*- coding: utf-8; mode: rst -*-
   2
   3 .. _V4L2-PIX-FMT-Y41P:
   4
   5 **************************
   6 V4L2_PIX_FMT_Y41P ('Y41P')
   7 **************************
   8
   9
  10 Format with ¼ horizontal chroma resolution, also known as YUV 4:1:1
  11
  12
  13 Description
  14 ===========
  15
  16 In this format each 12 bytes is eight pixels. In the twelve bytes are
  17 two CbCr pairs and eight Y's. The first CbCr pair goes with the first
  18 four Y's, and the second CbCr pair goes with the other four Y's. The Cb
  19 and Cr components have one fourth the horizontal resolution of the Y
  20 component.
  21
  22 Do not confuse this format with
  23 :ref:`V4L2_PIX_FMT_YUV411P <V4L2-PIX-FMT-YUV411P>`. Y41P is derived
  24 from "YUV 4:1:1 *packed*", while YUV411P stands for "YUV 4:1:1
  25 *planar*".
  26
  27 **Byte Order.**
  28 Each cell is one byte.
  29
  30
  31
  32
  33 .. flat-table::
  34     :header-rows:  0
  35     :stub-columns: 0
  36
  37
  38     -  .. row 1
  39
  40        -  start + 0:
  41
  42        -  Cb\ :sub:`00`
  43
  44        -  Y'\ :sub:`00`
  45
  46        -  Cr\ :sub:`00`
  47
  48        -  Y'\ :sub:`01`
  49
  50        -  Cb\ :sub:`01`
  51
  52        -  Y'\ :sub:`02`
  53
  54        -  Cr\ :sub:`01`
  55
  56        -  Y'\ :sub:`03`
  57
  58        -  Y'\ :sub:`04`
  59
  60        -  Y'\ :sub:`05`
  61
  62        -  Y'\ :sub:`06`
  63
  64        -  Y'\ :sub:`07`
  65
  66     -  .. row 2
  67
  68        -  start + 12:
  69
  70        -  Cb\ :sub:`10`
  71
  72        -  Y'\ :sub:`10`
  73
  74        -  Cr\ :sub:`10`
  75
  76        -  Y'\ :sub:`11`
  77
  78        -  Cb\ :sub:`11`
  79
  80        -  Y'\ :sub:`12`
  81
  82        -  Cr\ :sub:`11`
  83
  84        -  Y'\ :sub:`13`
  85
  86        -  Y'\ :sub:`14`
  87
  88        -  Y'\ :sub:`15`
  89
  90        -  Y'\ :sub:`16`
  91
  92        -  Y'\ :sub:`17`
  93
  94     -  .. row 3
  95
  96        -  start + 24:
  97
  98        -  Cb\ :sub:`20`
  99
 100        -  Y'\ :sub:`20`
 101
 102        -  Cr\ :sub:`20`
 103
 104        -  Y'\ :sub:`21`
 105
 106        -  Cb\ :sub:`21`
 107
 108        -  Y'\ :sub:`22`
 109
 110        -  Cr\ :sub:`21`
 111
 112        -  Y'\ :sub:`23`
 113
 114        -  Y'\ :sub:`24`
 115
 116        -  Y'\ :sub:`25`
 117
 118        -  Y'\ :sub:`26`
 119
 120        -  Y'\ :sub:`27`
 121
 122     -  .. row 4
 123
 124        -  start + 36:
 125
 126        -  Cb\ :sub:`30`
 127
 128        -  Y'\ :sub:`30`
 129
 130        -  Cr\ :sub:`30`
 131
 132        -  Y'\ :sub:`31`
 133
 134        -  Cb\ :sub:`31`
 135
 136        -  Y'\ :sub:`32`
 137
 138        -  Cr\ :sub:`31`
 139
 140        -  Y'\ :sub:`33`
 141
 142        -  Y'\ :sub:`34`
 143
 144        -  Y'\ :sub:`35`
 145
 146        -  Y'\ :sub:`36`
 147
 148        -  Y'\ :sub:`37`
 149
 150
 151 **Color Sample Location..**
 152
 153 .. flat-table::
 154     :header-rows:  0
 155     :stub-columns: 0
 156
 157
 158     -  .. row 1
 159
 160        -
 161        -  0
 162
 163        -  1
 164
 165        -
 166        -  2
 167
 168        -  3
 169
 170        -  4
 171
 172        -  5
 173
 174        -
 175        -  6
 176
 177        -  7
 178
 179     -  .. row 2
 180
 181        -  0
 182
 183        -  Y
 184
 185        -  Y
 186
 187        -  C
 188
 189        -  Y
 190
 191        -  Y
 192
 193        -  Y
 194
 195        -  Y
 196
 197        -  C
 198
 199        -  Y
 200
 201        -  Y
 202
 203     -  .. row 3
 204
 205        -  1
 206
 207        -  Y
 208
 209        -  Y
 210
 211        -  C
 212
 213        -  Y
 214
 215        -  Y
 216
 217        -  Y
 218
 219        -  Y
 220
 221        -  C
 222
 223        -  Y
 224
 225        -  Y
 226
 227     -  .. row 4
 228
 229        -  2
 230
 231        -  Y
 232
 233        -  Y
 234
 235        -  C
 236
 237        -  Y
 238
 239        -  Y
 240
 241        -  Y
 242
 243        -  Y
 244
 245        -  C
 246
 247        -  Y
 248
 249        -  Y
 250
 251     -  .. row 5
 252
 253        -  3
 254
 255        -  Y
 256
 257        -  Y
 258
 259        -  C
 260
 261        -  Y
 262
 263        -  Y
 264
 265        -  Y
 266
 267        -  Y
 268
 269        -  C
 270
 271        -  Y
 272
 273        -  Y