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, '65k²'],   # 2**16
 237                         gif  => [3, '65k²'],   # 2**16
 238                         png  => [4,  '2G²'],   # 2**31
 239                         jp2k => [5,  '4G²'],   # 2**32
 240                         webp => [1, '16k²'],   # 2**14
 241                         heic => [2, '8k×4k+'], # 8193x4320
 242                         avif => [3, '65k²+'],  # 2**16, 8193x4320 with profile
 243                         jxl  => [4,  '1G²'],   # 2**30
 244                 },
 245         },
 246         max_bitdepth => {
 247                 parent => 'limits',
 248                 name => 'precision (max. bit depth)',
 249                 score => {
 250                         jpeg => [2,  8],
 251                         gif  => [2,  8],
 252                         png  => [4, 16],
 253                         jp2k => [5, 38],
 254                         webp => [2,  8],
 255                         heic => [3, 10],
 256                         avif => [3, 10],
 257                         jxl  => [5, 32],
 258                 },
 259         },
 260         color_444 => {
 261                 parent => 'limits',
 262                 name => 'can do (lossy) 4:4:4',
 263                 score => {
 264                         jpeg => 'y',
 265                         gif  => 'y',
 266                         png  => 'y',
 267                         jp2k => 'y',
 268                         webp => 'n',
 269                         heic => 'n',
 270                         avif => 'y',
 271                         jxl  => 'y',
 272                 },
 273         },
 274         hdr => {
 275                 parent => 'limits',
 276                 name => 'wide gamut/HDR',
 277                 score => {
 278                         jpeg => 'n',
 279                         gif  => 'n',
 280                         png  => 'y',
 281                         jp2k => 'y',
 282                         webp => 'n',
 283                         heic => 'y',
 284                         avif => 'y',
 285                         jxl  => 'y',
 286                 },
 287         },
 288         max_channels => {
 289                 parent => 'limits',
 290                 name => 'maximum number of channels',
 291                 score => {
 292                         jpeg => [2, 4], # cmyk
 293                         gif  => [1, 3],
 294                         png  => [2, 4], # cmyk
 295                         jp2k => [5, 2**15],
 296                         webp => [2, 4],
 297                         heic => [3, 5],
 298                         avif => [3, 5],
 299                         jxl  => [4, 4099],
 300                 },
 301         },
 302         features => {
 303                 score => {
 304                         jpeg => 2,
 305                         gif  => 2,
 306                         png  => 3,
 307                         jp2k => 4,
 308                         webp => 2,
 309                         heic => 4,
 310                         avif => 4,
 311                         jxl  => 5,
 312                 },
 313                 children => [qw( animation progressive alpha depthmap overlays authoring reencode compat_jpeg )],
 314         },
 315         animation => {
 316                 parent => 'features',
 317                 name => 'supports animation',
 318                 score => {
 319                         jpeg => [2, 'MJPEG'],
 320                         gif  => 'y',
 321                         png  => [4, 'APNG'],
 322                         jp2k => [2, 'MJP2'],
 323                         webp => 'y',
 324                         heic => 'y',
 325                         avif => 'y',
 326                         jxl  => 'y',
 327                 },
 328         },
 329         progressive => {
 330                 parent => 'features',
 331                 name => 'progressive decoding',
 332                 score => {
 333                         jpeg => 4,
 334                         gif  => 2,
 335                         png  => 2,
 336                         jp2k => 5,
 337                         webp => 'n',
 338                         heic => 'n',
 339                         avif => 'n',
 340                         jxl  => 5,
 341                 },
 342         },
 343         alpha => {
 344                 parent => 'features',
 345                 name => 'alpha transparency',
 346                 score => {
 347                         jpeg => 'n',
 348                         gif  => [3, '1 bit'],
 349                         png  => 'y',
 350                         jp2k => 'y',
 351                         webp => 'y',
 352                         heic => 'y',
 353                         avif => 'y',
 354                         jxl  => 'y',
 355                 },
 356         },
 357         depthmap => {
 358                 parent => 'features',
 359                 name => 'depth map',
 360                 score => {
 361                         jpeg => 'n',
 362                         gif  => 'n',
 363                         png  => 'n',
 364                         jp2k => 'n',
 365                         webp => 'n',
 366                         heic => 'y',
 367                         avif => 'y',
 368                         jxl  => 'y',
 369                 },
 370         },
 371         overlays => {
 372                 parent => 'features',
 373                 name => 'overlays (layers)',
 374                 score => {
 375                         jpeg => 'n',
 376                         gif  => 'y',
 377                         png  => 'n',
 378                         jp2k => 'n',
 379                         webp => 'n',
 380                         heic => 'y',
 381                         avif => 'y',
 382                         jxl  => 'y',
 383                 },
 384         },
 385         authoring => {
 386                 parent => 'features',
 387                 name => 'authoring workflow suitability',
 388                 score => {
 389                         jpeg => 2,
 390                         gif  => 2,
 391                         png  => 3,
 392                         jp2k => 3,
 393                         webp => 2,
 394                         heic => 2,
 395                         avif => 2,
 396                         jxl  => 5,
 397                 },
 398         },
 399         reencode => {
 400                 parent => 'features',
 401                 name => 'generation loss resilience',
 402                 score => {
 403                         jpeg => 4,
 404                         png  => 0,
 405                         gif  => 0,
 406                         jp2k => 3,
 407                         webp => 2,
 408                         heic => 3,
 409                         avif => 3,
 410                         jxl  => 4,
 411                 },
 412         },
 413         compat_jpeg => {
 414                 parent => 'features',
 415                 name => 'lossless JPEG recompression',
 416                 score => {
 417                         jpeg => 0,
 418                         gif  => 'n',
 419                         png  => 'n',
 420                         jp2k => 'n',
 421                         webp => 'n',
 422                         heic => 'n',
 423                         avif => 'n',
 424                         jxl  => 'y',
 425                 },
 426         },
 427         royalties => {
 428                 name => 'royalty-free',
 429                 score => {
 430                         jpeg => 5,
 431                         gif  => 5, # patents expired
 432                         png  => 5,
 433                         jp2k => 3, # specs not freely available
 434                         webp => 4, # submarine risk
 435                         heic => 'n', # patents enforced
 436                         avif => 4,
 437                         jxl  => 4,
 438                 },
 439                 children => [],
 440         },
 441 },
 442 }