avfilter/paletteuse: switch to a perceptual model

Now the selection of the color is based on a distance built around human
perception of color instead of the unreliable sRGB triplet one.

4 files changed, 284 insertions, 284 deletions

diff --git a/tests/ref/fate/filter-paletteuse-bayer b/tests/ref/fate/filter-paletteuse-bayer
index 5ca0115053..fa1778a1bb 100644
--- a/tests/ref/fate/filter-paletteuse-bayer
+++ b/tests/ref/fate/filter-paletteuse-bayer
@@ -3,74 +3,74 @@
 #codec_id 0: rawvideo
 #dimensions 0: 320x180
 #sar 0: 1/1
-0,          0,          0,        1,   230400, 0x7b259d08
-0,          1,          1,        1,   230400, 0xf04095e0
-0,          2,          2,        1,   230400, 0x84d49cd5
-0,          3,          3,        1,   230400, 0xd7a29aaf
-0,          4,          4,        1,   230400, 0x9047947c
-0,          5,          5,        1,   230400, 0xfeb990e7
-0,          6,          6,        1,   230400, 0x51ee9295
-0,          7,          7,        1,   230400, 0x66fd4833
-0,          8,          8,        1,   230400, 0x4c0948f0
-0,          9,          9,        1,   230400, 0x632b4776
-0,         10,         10,        1,   230400, 0x7a3c87e2
-0,         11,         11,        1,   230400, 0x4a9286ba
-0,         12,         12,        1,   230400, 0x54dc8649
-0,         13,         13,        1,   230400, 0x92628944
-0,         14,         14,        1,   230400, 0x80f9899f
-0,         15,         15,        1,   230400, 0x5cd78bd8
-0,         16,         16,        1,   230400, 0x4b4ca390
-0,         17,         17,        1,   230400, 0x82cca153
-0,         18,         18,        1,   230400, 0x65f1a2d0
-0,         19,         19,        1,   230400, 0x7df6ae4c
-0,         20,         20,        1,   230400, 0x909baccc
-0,         21,         21,        1,   230400, 0x1892ac65
-0,         22,         22,        1,   230400, 0x3247bb32
-0,         23,         23,        1,   230400, 0x592fbbe5
-0,         24,         24,        1,   230400, 0x189db9d5
-0,         25,         25,        1,   230400, 0x1a38b8da
-0,         26,         26,        1,   230400, 0xccd6bd07
-0,         27,         27,        1,   230400, 0xd4a2bc53
-0,         28,         28,        1,   230400, 0x9ce3bb4e
-0,         29,         29,        1,   230400, 0x5ffdc4db
-0,         30,         30,        1,   230400, 0xc885c7c9
-0,         31,         31,        1,   230400, 0xe27b9d33
-0,         32,         32,        1,   230400, 0xac03a256
-0,         33,         33,        1,   230400, 0xa2c73929
-0,         34,         34,        1,   230400, 0x33793b73
-0,         35,         35,        1,   230400, 0x1e400add
-0,         36,         36,        1,   230400, 0x98e50c6e
-0,         37,         37,        1,   230400, 0x68ed226d
-0,         38,         38,        1,   230400, 0x569e23cb
-0,         39,         39,        1,   230400, 0x82bf3fc0
-0,         40,         40,        1,   230400, 0x2b202e86
-0,         41,         41,        1,   230400, 0x7acd2dee
-0,         42,         42,        1,   230400, 0xfe872e42
-0,         43,         43,        1,   230400, 0x026c12e5
-0,         44,         44,        1,   230400, 0x81561399
-0,         45,         45,        1,   230400, 0xa08c13b6
-0,         46,         46,        1,   230400, 0x89e712f5
-0,         47,         47,        1,   230400, 0x569011ac
-0,         48,         48,        1,   230400, 0xd4691112
-0,         49,         49,        1,   230400, 0x2e50165a
-0,         50,         50,        1,   230400, 0x0a1215b6
-0,         51,         51,        1,   230400, 0x3c5316e3
-0,         52,         52,        1,   230400, 0x079c1393
-0,         53,         53,        1,   230400, 0x39ca1c48
-0,         54,         54,        1,   230400, 0xe27f199c
-0,         55,         55,        1,   230400, 0x10ab1bab
-0,         56,         56,        1,   230400, 0xeab017c3
-0,         57,         57,        1,   230400, 0x5f701f77
-0,         58,         58,        1,   230400, 0x01371d7d
-0,         59,         59,        1,   230400, 0x22751e99
-0,         60,         60,        1,   230400, 0xaee91a97
-0,         61,         61,        1,   230400, 0x27b41f32
-0,         62,         62,        1,   230400, 0x4ff32bb1
-0,         63,         63,        1,   230400, 0x86e02864
-0,         64,         64,        1,   230400, 0x5eb52b3e
-0,         65,         65,        1,   230400, 0xd9252ba8
-0,         66,         66,        1,   230400, 0x72232d9b
-0,         67,         67,        1,   230400, 0x599a206f
-0,         68,         68,        1,   230400, 0x4d2c1ca5
-0,         69,         69,        1,   230400, 0x9166293b
-0,         70,         70,        1,   230400, 0x00992453
+0,          0,          0,        1,   230400, 0x10a99774
+0,          1,          1,        1,   230400, 0xa18b90f8
+0,          2,          2,        1,   230400, 0x837a95f9
+0,          3,          3,        1,   230400, 0xc50d948b
+0,          4,          4,        1,   230400, 0xdefc8eca
+0,          5,          5,        1,   230400, 0x00498bdb
+0,          6,          6,        1,   230400, 0x22458cdc
+0,          7,          7,        1,   230400, 0xfad1418c
+0,          8,          8,        1,   230400, 0xf09341dd
+0,          9,          9,        1,   230400, 0x5ef141ac
+0,         10,         10,        1,   230400, 0x6f2d815f
+0,         11,         11,        1,   230400, 0x960880c2
+0,         12,         12,        1,   230400, 0x4ba37f8f
+0,         13,         13,        1,   230400, 0x3e678082
+0,         14,         14,        1,   230400, 0x4f1c80da
+0,         15,         15,        1,   230400, 0x69be82fd
+0,         16,         16,        1,   230400, 0x81d29b80
+0,         17,         17,        1,   230400, 0x5fdc9af7
+0,         18,         18,        1,   230400, 0xb8969c2b
+0,         19,         19,        1,   230400, 0xdb37a691
+0,         20,         20,        1,   230400, 0xdeb6a645
+0,         21,         21,        1,   230400, 0xf5c6a606
+0,         22,         22,        1,   230400, 0x110ab482
+0,         23,         23,        1,   230400, 0x5bddb45b
+0,         24,         24,        1,   230400, 0xc18ab32a
+0,         25,         25,        1,   230400, 0x22c1b2be
+0,         26,         26,        1,   230400, 0xaa7cb5c3
+0,         27,         27,        1,   230400, 0x5e8fb50f
+0,         28,         28,        1,   230400, 0x20e1b42a
+0,         29,         29,        1,   230400, 0x0c94c158
+0,         30,         30,        1,   230400, 0x41adc2a3
+0,         31,         31,        1,   230400, 0xbc359983
+0,         32,         32,        1,   230400, 0x19bb9eea
+0,         33,         33,        1,   230400, 0xfecd2f06
+0,         34,         34,        1,   230400, 0x26ba3110
+0,         35,         35,        1,   230400, 0xfdbcff0f
+0,         36,         36,        1,   230400, 0x1f030028
+0,         37,         37,        1,   230400, 0xccca1b0b
+0,         38,         38,        1,   230400, 0x66f91b1f
+0,         39,         39,        1,   230400, 0x0ef4366b
+0,         40,         40,        1,   230400, 0x2fac271c
+0,         41,         41,        1,   230400, 0xbef026a9
+0,         42,         42,        1,   230400, 0x775726f5
+0,         43,         43,        1,   230400, 0x35210966
+0,         44,         44,        1,   230400, 0x0c36099a
+0,         45,         45,        1,   230400, 0xc4f00a24
+0,         46,         46,        1,   230400, 0xa7c409b9
+0,         47,         47,        1,   230400, 0xa92d082b
+0,         48,         48,        1,   230400, 0xfc49442e
+0,         49,         49,        1,   230400, 0xb7de4997
+0,         50,         50,        1,   230400, 0x16d24877
+0,         51,         51,        1,   230400, 0xb0954a17
+0,         52,         52,        1,   230400, 0x709f4766
+0,         53,         53,        1,   230400, 0xe0dc4e4f
+0,         54,         54,        1,   230400, 0xfa844b09
+0,         55,         55,        1,   230400, 0xa62a4cf2
+0,         56,         56,        1,   230400, 0x078d4a76
+0,         57,         57,        1,   230400, 0x64c4505c
+0,         58,         58,        1,   230400, 0xe8604f13
+0,         59,         59,        1,   230400, 0x39a3503c
+0,         60,         60,        1,   230400, 0x915a4cf1
+0,         61,         61,        1,   230400, 0x495a5176
+0,         62,         62,        1,   230400, 0xc0a75b2b
+0,         63,         63,        1,   230400, 0x1a385761
+0,         64,         64,        1,   230400, 0x9a245984
+0,         65,         65,        1,   230400, 0xbe475ad9
+0,         66,         66,        1,   230400, 0x8e275c85
+0,         67,         67,        1,   230400, 0x5ba45436
+0,         68,         68,        1,   230400, 0x80285097
+0,         69,         69,        1,   230400, 0xbb1c5bfd
+0,         70,         70,        1,   230400, 0x273a5890
diff --git a/tests/ref/fate/filter-paletteuse-bayer0 b/tests/ref/fate/filter-paletteuse-bayer0
index 85b3832f19..44cd09a6a9 100644
--- a/tests/ref/fate/filter-paletteuse-bayer0
+++ b/tests/ref/fate/filter-paletteuse-bayer0
@@ -3,74 +3,74 @@
 #codec_id 0: rawvideo
 #dimensions 0: 320x180
 #sar 0: 1/1
-0,          0,          0,        1,   230400, 0xfb6042d2
-0,          1,          1,        1,   230400, 0x1c193c09
-0,          2,          2,        1,   230400, 0x183442f8
-0,          3,          3,        1,   230400, 0xa9634084
-0,          4,          4,        1,   230400, 0x90df3d2f
-0,          5,          5,        1,   230400, 0x59d7389f
-0,          6,          6,        1,   230400, 0xb9bd3a30
-0,          7,          7,        1,   230400, 0x9874ee38
-0,          8,          8,        1,   230400, 0xf661f01f
-0,          9,          9,        1,   230400, 0xacbcedbd
-0,         10,         10,        1,   230400, 0x05f02d59
-0,         11,         11,        1,   230400, 0xc54c2cc8
-0,         12,         12,        1,   230400, 0x19c92d61
-0,         13,         13,        1,   230400, 0x14902fb2
-0,         14,         14,        1,   230400, 0x99b62fb6
-0,         15,         15,        1,   230400, 0x3fc63293
-0,         16,         16,        1,   230400, 0x1eed4b38
-0,         17,         17,        1,   230400, 0xe9d747e0
-0,         18,         18,        1,   230400, 0x9825496f
-0,         19,         19,        1,   230400, 0x94625411
-0,         20,         20,        1,   230400, 0xed7052a3
-0,         21,         21,        1,   230400, 0x80d552dc
-0,         22,         22,        1,   230400, 0x89b360bb
-0,         23,         23,        1,   230400, 0xee9a616a
-0,         24,         24,        1,   230400, 0x30bb5f86
-0,         25,         25,        1,   230400, 0x5ec15eae
-0,         26,         26,        1,   230400, 0x0956633e
-0,         27,         27,        1,   230400, 0x72df62fa
-0,         28,         28,        1,   230400, 0xbafd61d0
-0,         29,         29,        1,   230400, 0x393f81f3
-0,         30,         30,        1,   230400, 0xba6a848c
-0,         31,         31,        1,   230400, 0x502ba0d9
-0,         32,         32,        1,   230400, 0xc81ba71d
-0,         33,         33,        1,   230400, 0x54cdf270
-0,         34,         34,        1,   230400, 0xe951f3e2
-0,         35,         35,        1,   230400, 0xbf15baa1
-0,         36,         36,        1,   230400, 0xbf96bb12
-0,         37,         37,        1,   230400, 0xcdd5cafe
-0,         38,         38,        1,   230400, 0x97b1cbb4
-0,         39,         39,        1,   230400, 0x955ae28f
-0,         40,         40,        1,   230400, 0x6a8dd28f
-0,         41,         41,        1,   230400, 0x8f02d268
-0,         42,         42,        1,   230400, 0x3075d269
-0,         43,         43,        1,   230400, 0x29e8b910
-0,         44,         44,        1,   230400, 0xb35ab888
-0,         45,         45,        1,   230400, 0xc3afb942
-0,         46,         46,        1,   230400, 0xeba8b860
-0,         47,         47,        1,   230400, 0x5de8b7ab
-0,         48,         48,        1,   230400, 0x90233679
-0,         49,         49,        1,   230400, 0x5fbc3abb
-0,         50,         50,        1,   230400, 0xeaa73b87
-0,         51,         51,        1,   230400, 0xbd0a3c4b
-0,         52,         52,        1,   230400, 0xeddb39ba
-0,         53,         53,        1,   230400, 0x269d4131
-0,         54,         54,        1,   230400, 0xae3e3e8c
-0,         55,         55,        1,   230400, 0x65f54056
-0,         56,         56,        1,   230400, 0xf2173c5b
-0,         57,         57,        1,   230400, 0xbd714477
-0,         58,         58,        1,   230400, 0xb60c42ed
-0,         59,         59,        1,   230400, 0x8def43a5
-0,         60,         60,        1,   230400, 0xe6a73f05
-0,         61,         61,        1,   230400, 0xedfe4430
-0,         62,         62,        1,   230400, 0x76c5505a
-0,         63,         63,        1,   230400, 0xf48d4d04
-0,         64,         64,        1,   230400, 0xa49950b5
-0,         65,         65,        1,   230400, 0xc64d51d8
-0,         66,         66,        1,   230400, 0xa08253ec
-0,         67,         67,        1,   230400, 0xd6ef4609
-0,         68,         68,        1,   230400, 0x27a241e7
-0,         69,         69,        1,   230400, 0xe5f74b4a
-0,         70,         70,        1,   230400, 0xb0194751
+0,          0,          0,        1,   230400, 0x9f192d87
+0,          1,          1,        1,   230400, 0x49db27f5
+0,          2,          2,        1,   230400, 0x8f8f2cb0
+0,          3,          3,        1,   230400, 0x33a82b14
+0,          4,          4,        1,   230400, 0x6f03275f
+0,          5,          5,        1,   230400, 0x1fce2453
+0,          6,          6,        1,   230400, 0x932925b3
+0,          7,          7,        1,   230400, 0x9987dba9
+0,          8,          8,        1,   230400, 0x9ba2dd04
+0,          9,          9,        1,   230400, 0x37eadc31
+0,         10,         10,        1,   230400, 0xda0518e2
+0,         11,         11,        1,   230400, 0xb96718b5
+0,         12,         12,        1,   230400, 0x0d63191e
+0,         13,         13,        1,   230400, 0xfc561af0
+0,         14,         14,        1,   230400, 0x22fd1b68
+0,         15,         15,        1,   230400, 0xef631dc5
+0,         16,         16,        1,   230400, 0xc0673745
+0,         17,         17,        1,   230400, 0x56c933f6
+0,         18,         18,        1,   230400, 0x3790359a
+0,         19,         19,        1,   230400, 0xd3293d02
+0,         20,         20,        1,   230400, 0xee513caa
+0,         21,         21,        1,   230400, 0x0fc33c17
+0,         22,         22,        1,   230400, 0x00c74991
+0,         23,         23,        1,   230400, 0xa7de49f5
+0,         24,         24,        1,   230400, 0xd99b485a
+0,         25,         25,        1,   230400, 0x6aab47d2
+0,         26,         26,        1,   230400, 0x2e434bf7
+0,         27,         27,        1,   230400, 0x46a04b1d
+0,         28,         28,        1,   230400, 0x135f49f8
+0,         29,         29,        1,   230400, 0x50566b86
+0,         30,         30,        1,   230400, 0xb0416d84
+0,         31,         31,        1,   230400, 0x8f20840c
+0,         32,         32,        1,   230400, 0xedbf8857
+0,         33,         33,        1,   230400, 0x30d6d698
+0,         34,         34,        1,   230400, 0xbc88d7a7
+0,         35,         35,        1,   230400, 0xce869fa3
+0,         36,         36,        1,   230400, 0xa973a0b1
+0,         37,         37,        1,   230400, 0x4c93b3a5
+0,         38,         38,        1,   230400, 0x3574b473
+0,         39,         39,        1,   230400, 0xa96bc936
+0,         40,         40,        1,   230400, 0x4a83b86d
+0,         41,         41,        1,   230400, 0x3b68b7cb
+0,         42,         42,        1,   230400, 0xc0feb869
+0,         43,         43,        1,   230400, 0x1a7d9ed8
+0,         44,         44,        1,   230400, 0xc32e9f12
+0,         45,         45,        1,   230400, 0x30f29fa4
+0,         46,         46,        1,   230400, 0x7b369f80
+0,         47,         47,        1,   230400, 0x28249e03
+0,         48,         48,        1,   230400, 0xf5c67eee
+0,         49,         49,        1,   230400, 0x40728404
+0,         50,         50,        1,   230400, 0xbf7383b0
+0,         51,         51,        1,   230400, 0x446d84c9
+0,         52,         52,        1,   230400, 0x5f678279
+0,         53,         53,        1,   230400, 0x4d1d891d
+0,         54,         54,        1,   230400, 0x173c866c
+0,         55,         55,        1,   230400, 0x045988a6
+0,         56,         56,        1,   230400, 0xf25f848f
+0,         57,         57,        1,   230400, 0xd61c8d71
+0,         58,         58,        1,   230400, 0x86428b1e
+0,         59,         59,        1,   230400, 0xc6268c08
+0,         60,         60,        1,   230400, 0xed9787e3
+0,         61,         61,        1,   230400, 0xe7ef8a27
+0,         62,         62,        1,   230400, 0x5dc09497
+0,         63,         63,        1,   230400, 0x8ec490b6
+0,         64,         64,        1,   230400, 0xc01d92e4
+0,         65,         65,        1,   230400, 0xbf6a941d
+0,         66,         66,        1,   230400, 0x53fd966a
+0,         67,         67,        1,   230400, 0xa2138be9
+0,         68,         68,        1,   230400, 0x2b868967
+0,         69,         69,        1,   230400, 0x4c889564
+0,         70,         70,        1,   230400, 0x6d8491ed
diff --git a/tests/ref/fate/filter-paletteuse-nodither b/tests/ref/fate/filter-paletteuse-nodither
index a2e61c3690..1535777547 100644
--- a/tests/ref/fate/filter-paletteuse-nodither
+++ b/tests/ref/fate/filter-paletteuse-nodither
@@ -3,74 +3,74 @@
 #codec_id 0: rawvideo
 #dimensions 0: 320x180
 #sar 0: 1/1
-0,          0,          0,        1,   230400, 0x690560cb
-0,          1,          1,        1,   230400, 0x197a5a54
-0,          2,          2,        1,   230400, 0x665961db
-0,          3,          3,        1,   230400, 0xce0b5fa8
-0,          4,          4,        1,   230400, 0xa40e5cb0
-0,          5,          5,        1,   230400, 0xa5aa58da
-0,          6,          6,        1,   230400, 0x8e0259bb
-0,          7,          7,        1,   230400, 0x476d0dba
-0,          8,          8,        1,   230400, 0xfb1b0e8c
-0,          9,          9,        1,   230400, 0x50f60d3b
-0,         10,         10,        1,   230400, 0x12cd4bab
-0,         11,         11,        1,   230400, 0x4c274b13
-0,         12,         12,        1,   230400, 0xea494b0a
-0,         13,         13,        1,   230400, 0x118c4cc1
-0,         14,         14,        1,   230400, 0xd4224db7
-0,         15,         15,        1,   230400, 0xc3014f88
-0,         16,         16,        1,   230400, 0xe07a6838
-0,         17,         17,        1,   230400, 0x1b97659a
-0,         18,         18,        1,   230400, 0xf104670c
-0,         19,         19,        1,   230400, 0x7b63733d
-0,         20,         20,        1,   230400, 0x2c237200
-0,         21,         21,        1,   230400, 0x775d7248
-0,         22,         22,        1,   230400, 0xcaee7f9e
-0,         23,         23,        1,   230400, 0x4e4680a1
-0,         24,         24,        1,   230400, 0x21fb7e53
-0,         25,         25,        1,   230400, 0xf0297db6
-0,         26,         26,        1,   230400, 0x79a9829d
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+0,         58,         58,        1,   230400, 0xa9b0c95b
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+0,         62,         62,        1,   230400, 0xd3a9d25d
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+0,         67,         67,        1,   230400, 0xd982cb24
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+0,         69,         69,        1,   230400, 0x5302d29a
+0,         70,         70,        1,   230400, 0xd989d0dc
diff --git a/tests/ref/fate/filter-paletteuse-sierra2_4a b/tests/ref/fate/filter-paletteuse-sierra2_4a
index d257820a32..75115066e1 100644
--- a/tests/ref/fate/filter-paletteuse-sierra2_4a
+++ b/tests/ref/fate/filter-paletteuse-sierra2_4a
@@ -3,74 +3,74 @@
 #codec_id 0: rawvideo
 #dimensions 0: 320x180
 #sar 0: 1/1
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-0,          3,          3,        1,   230400, 0xd2065629
-0,          4,          4,        1,   230400, 0x11eb5319
-0,          5,          5,        1,   230400, 0x61024f4c
-0,          6,          6,        1,   230400, 0xd5384faa
-0,          7,          7,        1,   230400, 0xdeae0343
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