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         gif => {
   9                 name => '<abbr title="Graphics Interchange Format">GIF</abbr>',
  10                 available => 1987,
  11         },
  12         png => {
  13                 name => '<abbr title="Portable Network Graphics">PNG</abbr>',
  14                 available => 1996,
  15         },
  16         jp2k => {
  17                 name => 'JPEG 2000',
  18                 available => 2000,
  19         },
  20         webp => {
  21                 name => 'WebP',
  22                 available => 2010,
  23         },
  24         heic => {
  25                 name => '<abbr title="High Efficiency Image Container (HEVC in HEIF)">HEIC</abbr>',
  26                 available => 2015,
  27         },
  28         avif => {
  29                 name => '<abbr title="AV1 Image File Format">AVIF</abbr>',
  30                 available => 2019,
  31         },
  32         jxl => {
  33                 name => 'JPEG XL',
  34                 available => 2021,
  35         },
  36 },
  37 feature => {
  38         default => {
  39                 children => [qw( quality_photo quality_art speed limits features royalties )],
  40         },
  41         quality_photo => {
  42                 name => 'compression (photo)',
  43                 score => {
  44                         jpeg => 3,
  45                         gif  => 1,
  46                         png  => 1,
  47                         jp2k => 4,
  48                         webp => 3,
  49                         heic => 5,
  50                         avif => 5,
  51                         jxl  => 5,
  52                 },
  53                 children => [qw( quality_photo_1 quality_photo_2 quality_photo_3 quality_photo_ll )],
  54         },
  55         quality_photo_1 => {
  56                 parent => 'quality_photo',
  57                 name => 'thumbnails',
  58                 score => {
  59                         jpeg => 2,
  60                         gif  => 1,
  61                         png  => 1,
  62                         jp2k => 3,
  63                         webp => 4,
  64                         heic => 5,
  65                         avif => 5,
  66                         jxl  => 3,
  67                 },
  68         },
  69         quality_photo_2 => {
  70                 parent => 'quality_photo',
  71                 name => 'medium fidelity',
  72                 score => {
  73                         jpeg => 3,
  74                         gif  => 1,
  75                         png  => 1,
  76                         jp2k => 4,
  77                         webp => 3,
  78                         heic => 4,
  79                         avif => 5,
  80                         jxl  => 5,
  81                 },
  82         },
  83         quality_photo_3 => {
  84                 parent => 'quality_photo',
  85                 name => 'high fidelity',
  86                 score => {
  87                         jpeg => 3,
  88                         gif  => 1,
  89                         png  => 2,
  90                         jp2k => 4,
  91                         webp => 2,
  92                         heic => 3,
  93                         avif => 4,
  94                         jxl  => 5,
  95                 },
  96         },
  97         quality_photo_ll => {
  98                 parent => 'quality_photo',
  99                 name => 'lossless',
 100                 score => {
 101                         jpeg => 1,
 102                         gif  => 1,
 103                         png  => 2,
 104                         jp2k => 4,
 105                         webp => 3,
 106                         heic => 3,
 107                         avif => 3,
 108                         jxl  => 5,
 109                 },
 110         },
 111         quality_art => {
 112                 name => 'compression (other images)',
 113                 score => {
 114                         jpeg => 2,
 115                         gif  => 1,
 116                         png  => 3,
 117                         jp2k => 2,
 118                         webp => 4,
 119                         heic => 3,
 120                         avif => 4.5,
 121                         jxl  => 5,
 122                 },
 123                 children => [qw( quality_art_2 quality_art_ll quality_art_mixed )],
 124         },
 125         quality_art_2 => {
 126                 name => 'lossy non-photographic',
 127                 score => {
 128                         jpeg => 2,
 129                         gif  => 2,
 130                         png  => 3,
 131                         jp2k => 2,
 132                         webp => 4,
 133                         heic => 3,
 134                         avif => 5,
 135                         jxl  => 5,
 136                 },
 137         },
 138         quality_art_ll => {
 139                 name => 'lossless non-photographic',
 140                 score => {
 141                         jpeg => 1,
 142                         gif  => 1,
 143                         png  => 4,
 144                         jp2k => 2,
 145                         webp => 5,
 146                         heic => 2,
 147                         avif => 3,
 148                         jxl  => 5,
 149                 },
 150         },
 151         quality_art_mixed => {
 152                 name => 'mixed photo/nonphoto',
 153                 score => {
 154                         jpeg => 2,
 155                         gif  => 1,
 156                         png  => 2,
 157                         jp2k => 2,
 158                         webp => 3,
 159                         heic => 3,
 160                         avif => 5,
 161                         jxl  => 5,
 162                 },
 163         },
 164         speed => {
 165                 score => {
 166                         jpeg => 5,
 167                         gif  => 4,
 168                         png  => 4,
 169                         jp2k => 3,
 170                         webp => 4,
 171                         heic => 3,
 172                         avif => 3,
 173                         jxl  => 5,
 174                 },
 175                 children => [qw( speed_encode speed_decode speed_parallel )],
 176         },
 177         speed_encode => {
 178                 parent => 'speed',
 179                 name => 'single-core encode',
 180                 score => {
 181                         jpeg => 5,
 182                         gif  => 3, # palette conversion
 183                         png  => 3,
 184                         jp2k => 4,
 185                         webp => 4,
 186                         heic => 3,
 187                         avif => 2,
 188                         jxl  => 5,
 189                 },
 190         },
 191         speed_decode => {
 192                 parent => 'speed',
 193                 name => 'single-core decode',
 194                 score => {
 195                         jpeg => 5,
 196                         gif  => 5,
 197                         png  => 5,
 198                         jp2k => 4,
 199                         webp => 5,
 200                         heic => 3,
 201                         avif => 3,
 202                         jxl  => 5,
 203                 },
 204         },
 205         speed_parallel => {
 206                 parent => 'speed',
 207                 name => 'pararellizable',
 208                 score => {
 209                         jpeg => 2,
 210                         gif  => 2,
 211                         png  => 2,
 212                         jp2k => 4,
 213                         webp => 2,
 214                         heic => 4,
 215                         avif => 4,
 216                         jxl  => 5,
 217                 },
 218         },
 219         limits => {
 220                 score => {
 221                         jpeg => 3,
 222                         gif  => 2,
 223                         png  => 4,
 224                         jp2k => 5,
 225                         webp => 2,
 226                         heic => 4,
 227                         avif => 4.5,
 228                         jxl  => 5,
 229                 },
 230                 children => [qw( max_dimensions max_bitdepth color_444 hdr max_channels  )],
 231         },
 232         max_dimensions => {
 233                 parent => 'limits',
 234                 name => 'maximum image dimensions',
 235                 score => {
 236                         jpeg => 3,
 237                         gif  => 3,
 238                         png  => 4,
 239                         jp2k => 5,
 240                         webp => 1,
 241                         heic => 2,
 242                         avif => 3,
 243                         jxl  => 4,
 244                 },
 245                 data => {
 246                         jpeg => '65k²',  # 2**16
 247                         gif  => '65k²',  # 2**16
 248                         png  => '2G²',   # 2**31
 249                         jp2k => '4G²',   # 2**32
 250                         webp => '16k²',  # 2**14
 251                         heic => '8k×4k+', # 8193x4320
 252                         avif => '65k²+',  # 2**16, 8193x4320 with profile
 253                         jxl  => '1G²',   # 2**30
 254                 },
 255         },
 256         max_bitdepth => {
 257                 parent => 'limits',
 258                 name => 'precision (max. bit depth)',
 259                 score => {
 260                         jpeg => 2,
 261                         gif  => 2,
 262                         png  => 4,
 263                         jp2k => 5,
 264                         webp => 2,
 265                         heic => 3,
 266                         avif => 3,
 267                         jxl  => 5,
 268                 },
 269                 data => {
 270                         jpeg => 8,
 271                         gif  => 8,
 272                         png  => 16,
 273                         jp2k => 38,
 274                         webp => 8,
 275                         heic => 10,
 276                         avif => 10,
 277                         jxl  => 32,
 278                 },
 279         },
 280         color_444 => {
 281                 parent => 'limits',
 282                 name => 'can do (lossy) 4:4:4',
 283                 score => {
 284                         jpeg => 'y',
 285                         gif  => 'y',
 286                         png  => 'y',
 287                         jp2k => 'y',
 288                         webp => 'n',
 289                         heic => 'n',
 290                         avif => 'y',
 291                         jxl  => 'y',
 292                 },
 293         },
 294         hdr => {
 295                 parent => 'limits',
 296                 name => 'wide gamut/HDR',
 297                 score => {
 298                         jpeg => 'n',
 299                         gif  => 'n',
 300                         png  => 'y',
 301                         jp2k => 'y',
 302                         webp => 'n',
 303                         heic => 'y',
 304                         avif => 'y',
 305                         jxl  => 'y',
 306                 },
 307         },
 308         max_channels => {
 309                 parent => 'limits',
 310                 name => 'maximum number of channels',
 311                 score => {
 312                         jpeg => 2,
 313                         gif  => 1,
 314                         png  => 2,
 315                         jp2k => 5,
 316                         webp => 2,
 317                         heic => 3,
 318                         avif => 3,
 319                         jxl  => 4,
 320                 },
 321                 data => {
 322                         jpeg => 4, # cmyk
 323                         gif  => 3,
 324                         png  => 4, # cmyk
 325                         jp2k => 2**15,
 326                         webp => 4,
 327                         heic => 5,
 328                         avif => 5,
 329                         jxl  => 4099,
 330                 },
 331         },
 332         features => {
 333                 score => {
 334                         jpeg => 2,
 335                         gif  => 2,
 336                         png  => 3,
 337                         jp2k => 4,
 338                         webp => 2,
 339                         heic => 4,
 340                         avif => 4,
 341                         jxl  => 5,
 342                 },
 343                 children => [qw( animation progressive alpha depthmap overlays authoring reencode compat_jpeg )],
 344         },
 345         animation => {
 346                 parent => 'features',
 347                 name => 'supports animation',
 348                 score => {
 349                         jpeg => 2,
 350                         gif  => 'y',
 351                         png  => 4,
 352                         jp2k => 2,
 353                         webp => 'y',
 354                         heic => 'y',
 355                         avif => 'y',
 356                         jxl  => 'y',
 357                 },
 358                 data => {
 359                         jpeg => 'MJPEG',
 360                         png  => 'APNG',
 361                         jp2k => 'MJP2',
 362                 },
 363         },
 364         progressive => {
 365                 parent => 'features',
 366                 name => 'progressive decoding',
 367                 score => {
 368                         jpeg => 4,
 369                         gif  => 2,
 370                         png  => 2,
 371                         jp2k => 5,
 372                         webp => 'n',
 373                         heic => 'n',
 374                         avif => 'n',
 375                         jxl  => 5,
 376                 },
 377         },
 378         alpha => {
 379                 parent => 'features',
 380                 name => 'alpha transparency',
 381                 score => {
 382                         jpeg => 'n',
 383                         gif  => 3,
 384                         png  => 'y',
 385                         jp2k => 'y',
 386                         webp => 'y',
 387                         heic => 'y',
 388                         avif => 'y',
 389                         jxl  => 'y',
 390                 },
 391                 data => {
 392                         gif => '1 bit',
 393                 },
 394         },
 395         depthmap => {
 396                 parent => 'features',
 397                 name => 'depth map',
 398                 score => {
 399                         jpeg => 'n',
 400                         gif  => 'n',
 401                         png  => 'n',
 402                         jp2k => 'n',
 403                         webp => 'n',
 404                         heic => 'y',
 405                         avif => 'y',
 406                         jxl  => 'y',
 407                 },
 408         },
 409         overlays => {
 410                 parent => 'features',
 411                 name => 'overlays (layers)',
 412                 score => {
 413                         jpeg => 'n',
 414                         gif  => 'y',
 415                         png  => 'n',
 416                         jp2k => 'n',
 417                         webp => 'n',
 418                         heic => 'y',
 419                         avif => 'y',
 420                         jxl  => 'y',
 421                 },
 422         },
 423         authoring => {
 424                 parent => 'features',
 425                 name => 'authoring workflow suitability',
 426                 score => {
 427                         jpeg => 2,
 428                         gif  => 2,
 429                         png  => 3,
 430                         jp2k => 3,
 431                         webp => 2,
 432                         heic => 2,
 433                         avif => 2,
 434                         jxl  => 5,
 435                 },
 436         },
 437         reencode => {
 438                 parent => 'features',
 439                 name => 'generation loss resilience',
 440                 score => {
 441                         jpeg => 4,
 442                         png  => 0,
 443                         gif  => 0,
 444                         jp2k => 3,
 445                         webp => 2,
 446                         heic => 3,
 447                         avif => 3,
 448                         jxl  => 4,
 449                 },
 450                 data => {
 451                         gif  => 'n/a',
 452                         png  => 'n/a',
 453                 },
 454         },
 455         compat_jpeg => {
 456                 parent => 'features',
 457                 name => 'lossless JPEG recompression',
 458                 score => {
 459                         jpeg => 0,
 460                         gif  => 'n',
 461                         png  => 'n',
 462                         jp2k => 'n',
 463                         webp => 'n',
 464                         heic => 'n',
 465                         avif => 'n',
 466                         jxl  => 'y',
 467                 },
 468                 data => {
 469                         jpeg => 'n/a',
 470                 },
 471         },
 472         royalties => {
 473                 name => 'royalty-free',
 474                 score => {
 475                         jpeg => 5,
 476                         gif  => 5, # patents expired
 477                         png  => 5,
 478                         jp2k => 3, # specs not freely available
 479                         webp => 4, # submarine risk
 480                         heic => 'n', # patents enforced
 481                         avif => 4,
 482                         jxl  => 4,
 483                 },
 484                 children => [],
 485         },
 486 },
 487 }