X-Git-Url: http://git.shiar.net/sheet.git/blobdiff_plain/433d74a7369648a5a005b8678d005d85fe1dfac1..c3ef3326d8ca3d9209afd34f6220f78b1eb0dbc2:/codec.inc.pl
diff --git a/codec.inc.pl b/codec.inc.pl
index a76b04d..6b6b4e0 100644
--- a/codec.inc.pl
+++ b/codec.inc.pl
@@ -5,6 +5,10 @@ codec => {
name => 'JPEG',
available => 1992,
},
+ gif => {
+ name => 'GIF',
+ available => 1987,
+ },
png => {
name => 'PNG',
available => 1996,
@@ -31,10 +35,14 @@ codec => {
},
},
feature => {
+ default => {
+ children => [qw( quality_photo quality_art speed limits features royalties )],
+ },
quality_photo => {
name => 'compression (photo)',
score => {
jpeg => 3,
+ gif => 1,
png => 1,
jp2k => 4,
webp => 3,
@@ -42,23 +50,28 @@ feature => {
avif => 5,
jxl => 5,
},
+ children => [qw( quality_photo_1 quality_photo_2 quality_photo_3 quality_photo_ll )],
},
quality_photo_1 => {
- name => 'low fidelity',
+ parent => 'quality_photo',
+ name => 'thumbnails',
score => {
jpeg => 2,
+ gif => 1,
png => 1,
jp2k => 3,
- webp => 3,
+ webp => 4,
heic => 5,
avif => 5,
- jxl => 4,
+ jxl => 3,
},
},
quality_photo_2 => {
+ parent => 'quality_photo',
name => 'medium fidelity',
score => {
jpeg => 3,
+ gif => 1,
png => 1,
jp2k => 4,
webp => 3,
@@ -68,9 +81,11 @@ feature => {
},
},
quality_photo_3 => {
+ parent => 'quality_photo',
name => 'high fidelity',
score => {
jpeg => 3,
+ gif => 1,
png => 2,
jp2k => 4,
webp => 2,
@@ -80,9 +95,11 @@ feature => {
},
},
quality_photo_ll => {
+ parent => 'quality_photo',
name => 'lossless',
score => {
jpeg => 1,
+ gif => 1,
png => 2,
jp2k => 4,
webp => 3,
@@ -95,6 +112,7 @@ feature => {
name => 'compression (other images)',
score => {
jpeg => 2,
+ gif => 1,
png => 3,
jp2k => 2,
webp => 4,
@@ -102,11 +120,13 @@ feature => {
avif => 4.5,
jxl => 5,
},
+ children => [qw( quality_art_2 quality_art_ll quality_art_mixed )],
},
quality_art_2 => {
name => 'lossy non-photographic',
score => {
jpeg => 2,
+ gif => 2,
png => 3,
jp2k => 2,
webp => 4,
@@ -119,6 +139,7 @@ feature => {
name => 'lossless non-photographic',
score => {
jpeg => 1,
+ gif => 1,
png => 4,
jp2k => 2,
webp => 5,
@@ -131,6 +152,7 @@ feature => {
name => 'mixed photo/nonphoto',
score => {
jpeg => 2,
+ gif => 1,
png => 2,
jp2k => 2,
webp => 3,
@@ -142,6 +164,7 @@ feature => {
speed => {
score => {
jpeg => 5,
+ gif => 4,
png => 4,
jp2k => 3,
webp => 4,
@@ -149,11 +172,14 @@ feature => {
avif => 3,
jxl => 5,
},
+ children => [qw( speed_encode speed_decode speed_parallel )],
},
speed_encode => {
+ parent => 'speed',
name => 'single-core encode',
score => {
jpeg => 5,
+ gif => 3, # palette conversion
png => 3,
jp2k => 4,
webp => 4,
@@ -163,9 +189,11 @@ feature => {
},
},
speed_decode => {
+ parent => 'speed',
name => 'single-core decode',
score => {
jpeg => 5,
+ gif => 5,
png => 5,
jp2k => 4,
webp => 5,
@@ -175,9 +203,11 @@ feature => {
},
},
speed_parallel => {
+ parent => 'speed',
name => 'pararellizable',
score => {
jpeg => 2,
+ gif => 2,
png => 2,
jp2k => 4,
webp => 2,
@@ -189,6 +219,7 @@ feature => {
limits => {
score => {
jpeg => 3,
+ gif => 2,
png => 4,
jp2k => 5,
webp => 2,
@@ -196,23 +227,48 @@ feature => {
avif => 4.5,
jxl => 5,
},
+ children => [qw( max_dimensions max_bitdepth color_444 hdr max_channels )],
},
max_dimensions => {
+ parent => 'limits',
name => 'maximum image dimensions',
+ score => {
+ jpeg => 3,
+ gif => 3,
+ png => 4,
+ jp2k => 5,
+ webp => 1,
+ heic => 2,
+ avif => 3,
+ jxl => 4,
+ },
data => {
jpeg => '65k²', # 2**16
+ gif => '65k²', # 2**16
png => '2G²', # 2**31
jp2k => '4G²', # 2**32
webp => '16k²', # 2**14
- heic => '8kÃ4k+', # 2**13
- avif => '8kÃ4k+',
+ heic => '8kÃ4k+', # 8193x4320
+ avif => '65k²+', # 2**16, 8193x4320 with profile
jxl => '1G²', # 2**30
},
},
max_bitdepth => {
+ parent => 'limits',
name => 'precision (max. bit depth)',
+ score => {
+ jpeg => 2,
+ gif => 2,
+ png => 4,
+ jp2k => 5,
+ webp => 2,
+ heic => 3,
+ avif => 3,
+ jxl => 5,
+ },
data => {
jpeg => 8,
+ gif => 8,
png => 16,
jp2k => 38,
webp => 8,
@@ -222,9 +278,11 @@ feature => {
},
},
color_444 => {
+ parent => 'limits',
name => 'can do (lossy) 4:4:4',
score => {
jpeg => 'y',
+ gif => 'y',
png => 'y',
jp2k => 'y',
webp => 'n',
@@ -234,9 +292,11 @@ feature => {
},
},
hdr => {
+ parent => 'limits',
name => 'wide gamut/HDR',
score => {
jpeg => 'n',
+ gif => 'n',
png => 'y',
jp2k => 'y',
webp => 'n',
@@ -246,9 +306,21 @@ feature => {
},
},
max_channels => {
+ parent => 'limits',
name => 'maximum number of channels',
+ score => {
+ jpeg => 2,
+ gif => 1,
+ png => 2,
+ jp2k => 5,
+ webp => 2,
+ heic => 3,
+ avif => 3,
+ jxl => 4,
+ },
data => {
jpeg => 4, # cmyk
+ gif => 3,
png => 4, # cmyk
jp2k => 2**15,
webp => 4,
@@ -260,6 +332,7 @@ feature => {
features => {
score => {
jpeg => 2,
+ gif => 2,
png => 3,
jp2k => 4,
webp => 2,
@@ -267,13 +340,16 @@ feature => {
avif => 4,
jxl => 5,
},
+ children => [qw( animation progressive alpha depthmap overlays authoring reencode compat_jpeg )],
},
animation => {
+ parent => 'features',
name => 'supports animation',
score => {
- jpeg => 'n',
- png => 'y',
- jp2k => 'n',
+ jpeg => 2,
+ gif => 'y',
+ png => 4,
+ jp2k => 2,
webp => 'y',
heic => 'y',
avif => 'y',
@@ -286,9 +362,11 @@ feature => {
},
},
progressive => {
+ parent => 'features',
name => 'progressive decoding',
score => {
jpeg => 4,
+ gif => 2,
png => 2,
jp2k => 5,
webp => 'n',
@@ -298,9 +376,11 @@ feature => {
},
},
alpha => {
+ parent => 'features',
name => 'alpha transparency',
score => {
jpeg => 'n',
+ gif => 3,
png => 'y',
jp2k => 'y',
webp => 'y',
@@ -308,11 +388,16 @@ feature => {
avif => 'y',
jxl => 'y',
},
+ data => {
+ gif => '1 bit',
+ },
},
depthmap => {
+ parent => 'features',
name => 'depth map',
score => {
jpeg => 'n',
+ gif => 'n',
png => 'n',
jp2k => 'n',
webp => 'n',
@@ -322,9 +407,11 @@ feature => {
},
},
overlays => {
- name => 'overlays',
+ parent => 'features',
+ name => 'overlays (layers)',
score => {
jpeg => 'n',
+ gif => 'y',
png => 'n',
jp2k => 'n',
webp => 'n',
@@ -334,9 +421,11 @@ feature => {
},
},
authoring => {
+ parent => 'features',
name => 'authoring workflow suitability',
score => {
jpeg => 2,
+ gif => 2,
png => 3,
jp2k => 3,
webp => 2,
@@ -346,10 +435,12 @@ feature => {
},
},
reencode => {
+ parent => 'features',
name => 'generation loss resilience',
score => {
jpeg => 4,
- png => 'n/a',
+ png => 0,
+ gif => 0,
jp2k => 3,
webp => 2,
heic => 3,
@@ -357,13 +448,16 @@ feature => {
jxl => 4,
},
data => {
+ gif => 'n/a',
png => 'n/a',
},
},
compat_jpeg => {
+ parent => 'features',
name => 'lossless JPEG recompression',
score => {
jpeg => 0,
+ gif => 'n',
png => 'n',
jp2k => 'n',
webp => 'n',
@@ -378,14 +472,16 @@ feature => {
royalties => {
name => 'royalty-free',
score => {
- jpeg => 'y',
- png => 'y',
- jp2k => 'y',
- webp => 'y',
- heic => 'n',
- avif => 'y',
- jxl => 'y',
+ jpeg => 5,
+ gif => 5, # patents expired
+ png => 5,
+ jp2k => 3, # specs not freely available
+ webp => 4, # submarine risk
+ heic => 'n', # patents enforced
+ avif => 4,
+ jxl => 4,
},
+ children => [],
},
},
}