codec.inc.pl

   1 use utf8;
   2 +{
   3 codec => {
   4         jpeg => {
   5                 name => '<abbr title="Joint Photographic Experts Group">JPEG</abbr>',
   6                 available => 1992,
   7         },
   8         png => {
   9                 name => '<abbr title="Portable Network Graphics">PNG</abbr>',
  10                 available => 1996,
  11         },
  12         jp2k => {
  13                 name => 'JPEG 2000',
  14                 available => 2000,
  15         },
  16         webp => {
  17                 name => 'WebP',
  18                 available => 2010,
  19         },
  20         heic => {
  21                 name => '<abbr title="High Efficiency Image Container (HEVC in HEIF)">HEIC</abbr>',
  22                 available => 2015,
  23         },
  24         avif => {
  25                 name => '<abbr title="AV1 Image File Format">AVIF</abbr>',
  26                 available => 2019,
  27         },
  28         jxl => {
  29                 name => 'JPEG XL',
  30                 available => 2021,
  31         },
  32 },
  33 feature => {
  34         default => {
  35                 children => [qw( quality_photo quality_art speed limits features royalties )],
  36         },
  37         quality_photo => {
  38                 name => 'compression (photo)',
  39                 score => {
  40                         jpeg => 3,
  41                         png  => 1,
  42                         jp2k => 4,
  43                         webp => 3,
  44                         heic => 5,
  45                         avif => 5,
  46                         jxl  => 5,
  47                 },
  48                 children => [qw( quality_photo_1 quality_photo_2 quality_photo_3 quality_photo_ll )],
  49         },
  50         quality_photo_1 => {
  51                 parent => 'quality_photo',
  52                 name => 'low fidelity',
  53                 score => {
  54                         jpeg => 2,
  55                         png  => 1,
  56                         jp2k => 3,
  57                         webp => 3,
  58                         heic => 5,
  59                         avif => 5,
  60                         jxl  => 4,
  61                 },
  62         },
  63         quality_photo_2 => {
  64                 parent => 'quality_photo',
  65                 name => 'medium fidelity',
  66                 score => {
  67                         jpeg => 3,
  68                         png  => 1,
  69                         jp2k => 4,
  70                         webp => 3,
  71                         heic => 4,
  72                         avif => 5,
  73                         jxl  => 5,
  74                 },
  75         },
  76         quality_photo_3 => {
  77                 parent => 'quality_photo',
  78                 name => 'high fidelity',
  79                 score => {
  80                         jpeg => 3,
  81                         png  => 2,
  82                         jp2k => 4,
  83                         webp => 2,
  84                         heic => 3,
  85                         avif => 4,
  86                         jxl  => 5,
  87                 },
  88         },
  89         quality_photo_ll => {
  90                 parent => 'quality_photo',
  91                 name => 'lossless',
  92                 score => {
  93                         jpeg => 1,
  94                         png  => 2,
  95                         jp2k => 4,
  96                         webp => 3,
  97                         heic => 3,
  98                         avif => 3,
  99                         jxl  => 5,
 100                 },
 101         },
 102         quality_art => {
 103                 name => 'compression (other images)',
 104                 score => {
 105                         jpeg => 2,
 106                         png  => 3,
 107                         jp2k => 2,
 108                         webp => 4,
 109                         heic => 3,
 110                         avif => 4.5,
 111                         jxl  => 5,
 112                 },
 113                 children => [qw( quality_art_2 quality_art_ll quality_art_mixed )],
 114         },
 115         quality_art_2 => {
 116                 name => 'lossy non-photographic',
 117                 score => {
 118                         jpeg => 2,
 119                         png  => 3,
 120                         jp2k => 2,
 121                         webp => 4,
 122                         heic => 3,
 123                         avif => 5,
 124                         jxl  => 5,
 125                 },
 126         },
 127         quality_art_ll => {
 128                 name => 'lossless non-photographic',
 129                 score => {
 130                         jpeg => 1,
 131                         png  => 4,
 132                         jp2k => 2,
 133                         webp => 5,
 134                         heic => 2,
 135                         avif => 3,
 136                         jxl  => 5,
 137                 },
 138         },
 139         quality_art_mixed => {
 140                 name => 'mixed photo/nonphoto',
 141                 score => {
 142                         jpeg => 2,
 143                         png  => 2,
 144                         jp2k => 2,
 145                         webp => 3,
 146                         heic => 3,
 147                         avif => 5,
 148                         jxl  => 5,
 149                 },
 150         },
 151         speed => {
 152                 score => {
 153                         jpeg => 5,
 154                         png  => 4,
 155                         jp2k => 3,
 156                         webp => 4,
 157                         heic => 3,
 158                         avif => 3,
 159                         jxl  => 5,
 160                 },
 161                 children => [qw( speed_encode speed_decode speed_parallel )],
 162         },
 163         speed_encode => {
 164                 parent => 'speed',
 165                 name => 'single-core encode',
 166                 score => {
 167                         jpeg => 5,
 168                         png  => 3,
 169                         jp2k => 4,
 170                         webp => 4,
 171                         heic => 3,
 172                         avif => 2,
 173                         jxl  => 5,
 174                 },
 175         },
 176         speed_decode => {
 177                 parent => 'speed',
 178                 name => 'single-core decode',
 179                 score => {
 180                         jpeg => 5,
 181                         png  => 5,
 182                         jp2k => 4,
 183                         webp => 5,
 184                         heic => 3,
 185                         avif => 3,
 186                         jxl  => 5,
 187                 },
 188         },
 189         speed_parallel => {
 190                 parent => 'speed',
 191                 name => 'pararellizable',
 192                 score => {
 193                         jpeg => 2,
 194                         png  => 2,
 195                         jp2k => 4,
 196                         webp => 2,
 197                         heic => 4,
 198                         avif => 4,
 199                         jxl  => 5,
 200                 },
 201         },
 202         limits => {
 203                 score => {
 204                         jpeg => 3,
 205                         png  => 4,
 206                         jp2k => 5,
 207                         webp => 2,
 208                         heic => 4,
 209                         avif => 4.5,
 210                         jxl  => 5,
 211                 },
 212                 children => [qw( max_dimensions max_bitdepth color_444 hdr max_channels  )],
 213         },
 214         max_dimensions => {
 215                 parent => 'limits',
 216                 name => 'maximum image dimensions',
 217                 score => {
 218                         jpeg => 3,
 219                         png  => 4,
 220                         jp2k => 5,
 221                         webp => 1,
 222                         heic => 2,
 223                         avif => 3,
 224                         jxl  => 4,
 225                 },
 226                 data => {
 227                         jpeg => '65k²',  # 2**16
 228                         png  => '2G²',   # 2**31
 229                         jp2k => '4G²',   # 2**32
 230                         webp => '16k²',  # 2**14
 231                         heic => '8k×4k+', # 8193x4320
 232                         avif => '65k²+',  # 2**16, 8193x4320 with profile
 233                         jxl  => '1G²',   # 2**30
 234                 },
 235         },
 236         max_bitdepth => {
 237                 parent => 'limits',
 238                 name => 'precision (max. bit depth)',
 239                 score => {
 240                         jpeg => 2,
 241                         png  => 4,
 242                         jp2k => 5,
 243                         webp => 2,
 244                         heic => 3,
 245                         avif => 3,
 246                         jxl  => 5,
 247                 },
 248                 data => {
 249                         jpeg => 8,
 250                         png  => 16,
 251                         jp2k => 38,
 252                         webp => 8,
 253                         heic => 10,
 254                         avif => 10,
 255                         jxl  => 32,
 256                 },
 257         },
 258         color_444 => {
 259                 parent => 'limits',
 260                 name => 'can do (lossy) 4:4:4',
 261                 score => {
 262                         jpeg => 'y',
 263                         png  => 'y',
 264                         jp2k => 'y',
 265                         webp => 'n',
 266                         heic => 'n',
 267                         avif => 'y',
 268                         jxl  => 'y',
 269                 },
 270         },
 271         hdr => {
 272                 parent => 'limits',
 273                 name => 'wide gamut/HDR',
 274                 score => {
 275                         jpeg => 'n',
 276                         png  => 'y',
 277                         jp2k => 'y',
 278                         webp => 'n',
 279                         heic => 'y',
 280                         avif => 'y',
 281                         jxl  => 'y',
 282                 },
 283         },
 284         max_channels => {
 285                 parent => 'limits',
 286                 name => 'maximum number of channels',
 287                 score => {
 288                         jpeg => 2,
 289                         png  => 2,
 290                         jp2k => 5,
 291                         webp => 2,
 292                         heic => 3,
 293                         avif => 3,
 294                         jxl  => 4,
 295                 },
 296                 data => {
 297                         jpeg => 4, # cmyk
 298                         png  => 4, # cmyk
 299                         jp2k => 2**15,
 300                         webp => 4,
 301                         heic => 5,
 302                         avif => 5,
 303                         jxl  => 4099,
 304                 },
 305         },
 306         features => {
 307                 score => {
 308                         jpeg => 2,
 309                         png  => 3,
 310                         jp2k => 4,
 311                         webp => 2,
 312                         heic => 4,
 313                         avif => 4,
 314                         jxl  => 5,
 315                 },
 316                 children => [qw( animation progressive alpha depthmap overlays authoring reencode compat_jpeg )],
 317         },
 318         animation => {
 319                 parent => 'features',
 320                 name => 'supports animation',
 321                 score => {
 322                         jpeg => 2,
 323                         png  => 4,
 324                         jp2k => 2,
 325                         webp => 'y',
 326                         heic => 'y',
 327                         avif => 'y',
 328                         jxl  => 'y',
 329                 },
 330                 data => {
 331                         jpeg => 'MJPEG',
 332                         png  => 'APNG',
 333                         jp2k => 'MJP2',
 334                 },
 335         },
 336         progressive => {
 337                 parent => 'features',
 338                 name => 'progressive decoding',
 339                 score => {
 340                         jpeg => 4,
 341                         png  => 2,
 342                         jp2k => 5,
 343                         webp => 'n',
 344                         heic => 'n',
 345                         avif => 'n',
 346                         jxl  => 5,
 347                 },
 348         },
 349         alpha => {
 350                 parent => 'features',
 351                 name => 'alpha transparency',
 352                 score => {
 353                         jpeg => 'n',
 354                         png  => 'y',
 355                         jp2k => 'y',
 356                         webp => 'y',
 357                         heic => 'y',
 358                         avif => 'y',
 359                         jxl  => 'y',
 360                 },
 361         },
 362         depthmap => {
 363                 parent => 'features',
 364                 name => 'depth map',
 365                 score => {
 366                         jpeg => 'n',
 367                         png  => 'n',
 368                         jp2k => 'n',
 369                         webp => 'n',
 370                         heic => 'y',
 371                         avif => 'y',
 372                         jxl  => 'y',
 373                 },
 374         },
 375         overlays => {
 376                 parent => 'features',
 377                 name => 'overlays',
 378                 score => {
 379                         jpeg => 'n',
 380                         png  => 'n',
 381                         jp2k => 'n',
 382                         webp => 'n',
 383                         heic => 'y',
 384                         avif => 'y',
 385                         jxl  => 'y',
 386                 },
 387         },
 388         authoring => {
 389                 parent => 'features',
 390                 name => 'authoring workflow suitability',
 391                 score => {
 392                         jpeg => 2,
 393                         png  => 3,
 394                         jp2k => 3,
 395                         webp => 2,
 396                         heic => 2,
 397                         avif => 2,
 398                         jxl  => 5,
 399                 },
 400         },
 401         reencode => {
 402                 parent => 'features',
 403                 name => 'generation loss resilience',
 404                 score => {
 405                         jpeg => 4,
 406                         png  => 'n/a',
 407                         jp2k => 3,
 408                         webp => 2,
 409                         heic => 3,
 410                         avif => 3,
 411                         jxl  => 4,
 412                 },
 413                 data => {
 414                         png  => 'n/a',
 415                 },
 416         },
 417         compat_jpeg => {
 418                 parent => 'features',
 419                 name => 'lossless JPEG recompression',
 420                 score => {
 421                         jpeg => 0,
 422                         png  => 'n',
 423                         jp2k => 'n',
 424                         webp => 'n',
 425                         heic => 'n',
 426                         avif => 'n',
 427                         jxl  => 'y',
 428                 },
 429                 data => {
 430                         jpeg => 'n/a',
 431                 },
 432         },
 433         royalties => {
 434                 name => 'royalty-free',
 435                 score => {
 436                         jpeg => 5,
 437                         png  => 5,
 438                         gif  => 5, # patents expired
 439                         jp2k => 3, # specs not freely available
 440                         webp => 4, # submarine risk
 441                         heic => 'n', # patents enforced
 442                         avif => 4,
 443                         jxl  => 4,
 444                 },
 445                 children => [],
 446         },
 447 },
 448 }