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Move lookup tables to separate file

pull/1552/head
Brian Popow 6 years ago
parent
40100f1d8e
commit
be3fd5bc9c
5 changed files with 496 additions and 534 deletions
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  1. 50
      src/ImageSharp/Formats/WebP/LossyUtils.cs
  2. 4
      src/ImageSharp/Formats/WebP/Vp8BitReader.cs
  3. 487
      src/ImageSharp/Formats/WebP/Vp8LookupTables.cs
  4. 340
      src/ImageSharp/Formats/WebP/WebPConstants.cs
  5. 149
      src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs

50
src/ImageSharp/Formats/WebP/LossyUtils.cs
View File

@ -756,11 +756,11 @@ namespace SixLabors.ImageSharp.Formats.WebP
int p0 = p[offset - step];
int q0 = p[offset];
int q1 = p[offset + step];
int a = (3 * (q0 - p0)) + Vp8LookupTables.Sclip1(p1 - q1);
int a1 = Vp8LookupTables.Sclip2((a + 4) >> 3);
int a2 = Vp8LookupTables.Sclip2((a + 3) >> 3);
p[offset - step] = Vp8LookupTables.Clip1(p0 + a2);
p[offset] = Vp8LookupTables.Clip1(q0 - a1);
int a = (3 * (q0 - p0)) + Vp8LookupTables.Sclip1[p1 - q1];
int a1 = Vp8LookupTables.Sclip2[(a + 4) >> 3];
int a2 = Vp8LookupTables.Sclip2[(a + 3) >> 3];
p[offset - step] = Vp8LookupTables.Clip1[p0 + a2];
p[offset] = Vp8LookupTables.Clip1[q0 - a1];
}
private static void DoFilter4(byte[] p, int offset, int step)
@ -771,13 +771,13 @@ namespace SixLabors.ImageSharp.Formats.WebP
int q0 = p[offset];
int q1 = p[offset + step];
int a = 3 * (q0 - p0);
int a1 = Vp8LookupTables.Sclip2((a + 4) >> 3);
int a2 = Vp8LookupTables.Sclip2((a + 3) >> 3);
int a1 = Vp8LookupTables.Sclip2[(a + 4) >> 3];
int a2 = Vp8LookupTables.Sclip2[(a + 3) >> 3];
int a3 = (a1 + 1) >> 1;
p[offset - (2 * step)] = Vp8LookupTables.Clip1(p1 + a3);
p[offset - step] = Vp8LookupTables.Clip1(p0 + a2);
p[offset] = Vp8LookupTables.Clip1(q0 - a1);
p[offset + step] = Vp8LookupTables.Clip1(q1 - a3);
p[offset - (2 * step)] = Vp8LookupTables.Clip1[p1 + a3];
p[offset - step] = Vp8LookupTables.Clip1[p0 + a2];
p[offset] = Vp8LookupTables.Clip1[q0 - a1];
p[offset + step] = Vp8LookupTables.Clip1[q1 - a3];
}
private static void DoFilter6(byte[] p, int offset, int step)
@ -789,18 +789,18 @@ namespace SixLabors.ImageSharp.Formats.WebP
int q0 = p[offset];
int q1 = p[offset + step];
int q2 = p[offset + (2 * step)];
int a = Vp8LookupTables.Clip1((3 * (q0 - p0)) + Vp8LookupTables.Clip1(p1 - q1));
int a = Vp8LookupTables.Clip1[(3 * (q0 - p0)) + Vp8LookupTables.Clip1[p1 - q1]];
// a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9]
int a1 = ((27 * a) + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7
int a2 = ((18 * a) + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7
int a3 = ((9 * a) + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7
p[offset - (3 * step)] = Vp8LookupTables.Clip1(p2 + a3);
p[offset - (2 * step)] = Vp8LookupTables.Clip1(p1 + a2);
p[offset - step] = Vp8LookupTables.Clip1(p0 + a1);
p[offset] = Vp8LookupTables.Clip1(q0 - a1);
p[offset + step] = Vp8LookupTables.Clip1(q1 - a2);
p[offset + (2 * step)] = Vp8LookupTables.Clip1(q2 - a3);
p[offset - (3 * step)] = Vp8LookupTables.Clip1[p2 + a3];
p[offset - (2 * step)] = Vp8LookupTables.Clip1[p1 + a2];
p[offset - step] = Vp8LookupTables.Clip1[p0 + a1];
p[offset] = Vp8LookupTables.Clip1[q0 - a1];
p[offset + step] = Vp8LookupTables.Clip1[q1 - a2];
p[offset + (2 * step)] = Vp8LookupTables.Clip1[q2 - a3];
}
private static bool NeedsFilter(byte[] p, int offset, int step, int thresh)
@ -809,7 +809,7 @@ namespace SixLabors.ImageSharp.Formats.WebP
int p0 = p[offset - step];
int q0 = p[offset];
int q1 = p[offset + step];
return (Vp8LookupTables.Abs0(p1 - p0) > thresh) || (Vp8LookupTables.Abs0(q1 - q0) > thresh);
return (Vp8LookupTables.Abs0[p1 - p0] > thresh) || (Vp8LookupTables.Abs0[q1 - q0] > thresh);
}
private static bool NeedsFilter2(byte[] p, int offset, int step, int t, int it)
@ -822,23 +822,23 @@ namespace SixLabors.ImageSharp.Formats.WebP
int q1 = p[offset + step];
int q2 = p[offset + (2 * step)];
int q3 = p[offset + (3 * step)];
if (((4 * Vp8LookupTables.Abs0(p0 - q0)) + Vp8LookupTables.Abs0(p1 - q1)) > t)
if (((4 * Vp8LookupTables.Abs0[p0 - q0]) + Vp8LookupTables.Abs0[p1 - q1]) > t)
{
return false;
}
return Vp8LookupTables.Abs0(p3 - p2) <= it && Vp8LookupTables.Abs0(p2 - p1) <= it &&
Vp8LookupTables.Abs0(p1 - p0) <= it && Vp8LookupTables.Abs0(q3 - q2) <= it &&
Vp8LookupTables.Abs0(q2 - q1) <= it && Vp8LookupTables.Abs0(q1 - q0) <= it;
return Vp8LookupTables.Abs0[p3 - p2] <= it && Vp8LookupTables.Abs0[p2 - p1] <= it &&
Vp8LookupTables.Abs0[p1 - p0] <= it && Vp8LookupTables.Abs0[q3 - q2] <= it &&
Vp8LookupTables.Abs0[q2 - q1] <= it && Vp8LookupTables.Abs0[q1 - q0] <= it;
}
private static bool Hev(byte[] p, int offset, int step, int thresh)
{
int p1 = p[offset -(2 * step)];
int p1 = p[offset - (2 * step)];
int p0 = p[offset - step];
int q0 = p[offset];
int q1 = p[offset + step];
return (Vp8LookupTables.Abs0(p1 - p0) > thresh) || (Vp8LookupTables.Abs0(q1 - q0) > thresh);
return (Vp8LookupTables.Abs0[p1 - p0] > thresh) || (Vp8LookupTables.Abs0[q1 - q0] > thresh);
}
private static int MultHi(int v, int coeff)

4
src/ImageSharp/Formats/WebP/Vp8BitReader.cs
View File

@ -113,7 +113,7 @@ namespace SixLabors.ImageSharp.Formats.WebP
return bit ? 1 : 0;
}
// simplified version of VP8GetBit() for prob=0x80 (note shift is always 1 here)
// Simplified version of VP8GetBit() for prob=0x80 (note shift is always 1 here)
public int GetSigned(int v)
{
if (this.bits < 0)
@ -227,7 +227,7 @@ namespace SixLabors.ImageSharp.Formats.WebP
n >>= 8;
}
return logValue + WebPConstants.LogTable8bit[n];
return logValue + Vp8LookupTables.LogTable8bit[n];
}
}
}

487
src/ImageSharp/Formats/WebP/Vp8LookupTables.cs
View File

@ -1,64 +1,495 @@
// Copyright (c) Six Labors and contributors.
// Licensed under the Apache License, Version 2.0.
using System.Collections.Generic;
namespace SixLabors.ImageSharp.Formats.WebP
{
internal static class Vp8LookupTables
{
private static readonly byte[] abs0;
public static readonly Dictionary<int, byte> Abs0;
public static readonly Dictionary<int, byte> Clip1;
public static readonly Dictionary<int, sbyte> Sclip1;
public static readonly Dictionary<int, sbyte> Sclip2;
public static readonly byte[,][] ModesProba = new byte[10, 10][];
// 31 ^ clz(i)
public static readonly byte[] LogTable8bit =
{
0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
};
private static readonly byte[] clip1;
// Paragraph 14.1
public static readonly int[] DcTable =
{
4, 5, 6, 7, 8, 9, 10, 10,
11, 12, 13, 14, 15, 16, 17, 17,
18, 19, 20, 20, 21, 21, 22, 22,
23, 23, 24, 25, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36,
37, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 46, 47, 48, 49, 50,
51, 52, 53, 54, 55, 56, 57, 58,
59, 60, 61, 62, 63, 64, 65, 66,
67, 68, 69, 70, 71, 72, 73, 74,
75, 76, 76, 77, 78, 79, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89,
91, 93, 95, 96, 98, 100, 101, 102,
104, 106, 108, 110, 112, 114, 116, 118,
122, 124, 126, 128, 130, 132, 134, 136,
138, 140, 143, 145, 148, 151, 154, 157
};
// Paragraph 14.1
public static readonly int[] AcTable =
{
4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27,
28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, 50, 51,
52, 53, 54, 55, 56, 57, 58, 60,
62, 64, 66, 68, 70, 72, 74, 76,
78, 80, 82, 84, 86, 88, 90, 92,
94, 96, 98, 100, 102, 104, 106, 108,
110, 112, 114, 116, 119, 122, 125, 128,
131, 134, 137, 140, 143, 146, 149, 152,
155, 158, 161, 164, 167, 170, 173, 177,
181, 185, 189, 193, 197, 201, 205, 209,
213, 217, 221, 225, 229, 234, 239, 245,
249, 254, 259, 264, 269, 274, 279, 284
};
private static readonly sbyte[] sclip1;
// Paragraph 13
public static readonly byte[,,,] CoeffsUpdateProba =
{
{ { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
},
{ { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 },
{ 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 }
},
{ { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
},
{ { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 }
},
{ { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
},
{ { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 },
{ 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
}
};
private static readonly sbyte[] sclip2;
// Paragraph 13.5: Default Token Probability Table.
public static readonly byte[,,,] DefaultCoeffsProba =
{
{
{ { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 },
{ 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 },
{ 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 }
},
{ { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 },
{ 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 },
{ 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 },
},
{ { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 },
{ 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 },
{ 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 },
},
{ { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 },
{ 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 },
{ 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 }
},
{ { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 },
{ 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 },
{ 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 }
},
{ { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 },
{ 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 },
{ 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 }
},
{ { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
}
},
{
{ { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 },
{ 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 },
{ 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 }
},
{ { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 },
{ 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 },
{ 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 }
},
{ { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 },
{ 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 },
{ 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 }
},
{ { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 },
{ 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 },
{ 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 }
},
{ { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 },
{ 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 },
{ 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 }
},
{ { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 },
{ 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 },
{ 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 }
},
{ { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 },
{ 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 },
{ 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 }
},
{ { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 },
{ 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 }
}
},
{ { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 },
{ 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 },
{ 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 }
},
{ { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 },
{ 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 },
{ 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 }
},
{ { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 },
{ 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 },
{ 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 }
},
{ { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 },
{ 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 }
},
{ { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 },
{ 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
}
},
{
{ { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 },
{ 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 },
{ 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 }
},
{ { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 },
{ 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 },
{ 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 }
},
{ { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 },
{ 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 },
{ 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 }
},
{ { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 },
{ 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 },
{ 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 }
},
{ { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 },
{ 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 },
{ 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 }
},
{ { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 },
{ 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 },
{ 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 }
},
{ { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 },
{ 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 },
{ 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 }
},
{ { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
}
}
};
static Vp8LookupTables()
{
// TODO: maybe use hashset here
abs0 = new byte[511];
Abs0 = new Dictionary<int, byte>();
for (int i = -255; i <= 255; ++i)
{
abs0[255 + i] = (byte)((i < 0) ? -i : i);
Abs0[i] = (byte)((i < 0) ? -i : i);
}
clip1 = new byte[766];
Clip1 = new Dictionary<int, byte>();
for (int i = -255; i <= 255 + 255; ++i)
{
clip1[255 + i] = (byte)((i < 0) ? 0 : (i > 255) ? 255 : i);
Clip1[i] = (byte)((i < 0) ? 0 : (i > 255) ? 255 : i);
}
sclip1 = new sbyte[2041];
Sclip1 = new Dictionary<int, sbyte>();
for (int i = -1020; i <= 1020; ++i)
{
sclip1[1020 + i] = (sbyte)((i < -128) ? -128 : (i > 127) ? 127 : i);
Sclip1[i] = (sbyte)((i < -128) ? -128 : (i > 127) ? 127 : i);
}
sclip2 = new sbyte[225];
Sclip2 = new Dictionary<int, sbyte>();
for (int i = -112; i <= 112; ++i)
{
sclip2[112 + i] = (sbyte)((i < -16) ? -16 : (i > 15) ? 15 : i);
Sclip2[i] = (sbyte)((i < -16) ? -16 : (i > 15) ? 15 : i);
}
}
public static byte Abs0(int v)
{
return abs0[v + 255];
}
public static byte Clip1(int v)
{
return clip1[v + 255];
}
public static sbyte Sclip1(int v)
{
return sclip1[v + 1020];
InitializeModesProbabilities();
}
public static sbyte Sclip2(int v)
private static void InitializeModesProbabilities()
{
return sclip2[v + 112];
// Paragraph 11.5
ModesProba[0, 0] = new byte[] { 231, 120, 48, 89, 115, 113, 120, 152, 112 };
ModesProba[0, 1] = new byte[] { 152, 179, 64, 126, 170, 118, 46, 70, 95 };
ModesProba[0, 2] = new byte[] { 175, 69, 143, 80, 85, 82, 72, 155, 103 };
ModesProba[0, 3] = new byte[] { 56, 58, 10, 171, 218, 189, 17, 13, 152 };
ModesProba[0, 4] = new byte[] { 114, 26, 17, 163, 44, 195, 21, 10, 173 };
ModesProba[0, 5] = new byte[] { 121, 24, 80, 195, 26, 62, 44, 64, 85 };
ModesProba[0, 6] = new byte[] { 144, 71, 10, 38, 171, 213, 144, 34, 26 };
ModesProba[0, 7] = new byte[] { 170, 46, 55, 19, 136, 160, 33, 206, 71 };
ModesProba[0, 8] = new byte[] { 63, 20, 8, 114, 114, 208, 12, 9, 226 };
ModesProba[0, 9] = new byte[] { 81, 40, 11, 96, 182, 84, 29, 16, 36 };
ModesProba[1, 0] = new byte[] { 134, 183, 89, 137, 98, 101, 106, 165, 148 };
ModesProba[1, 1] = new byte[] { 72, 187, 100, 130, 157, 111, 32, 75, 80 };
ModesProba[1, 2] = new byte[] { 66, 102, 167, 99, 74, 62, 40, 234, 128 };
ModesProba[1, 3] = new byte[] { 41, 53, 9, 178, 241, 141, 26, 8, 107 };
ModesProba[1, 4] = new byte[] { 74, 43, 26, 146, 73, 166, 49, 23, 157 };
ModesProba[1, 5] = new byte[] { 65, 38, 105, 160, 51, 52, 31, 115, 128 };
ModesProba[1, 6] = new byte[] { 104, 79, 12, 27, 217, 255, 87, 17, 7 };
ModesProba[1, 7] = new byte[] { 87, 68, 71, 44, 114, 51, 15, 186, 23 };
ModesProba[1, 8] = new byte[] { 47, 41, 14, 110, 182, 183, 21, 17, 194 };
ModesProba[1, 9] = new byte[] { 66, 45, 25, 102, 197, 189, 23, 18, 22 };
ModesProba[2, 0] = new byte[] { 88, 88, 147, 150, 42, 46, 45, 196, 205 };
ModesProba[2, 1] = new byte[] { 43, 97, 183, 117, 85, 38, 35, 179, 61 };
ModesProba[2, 2] = new byte[] { 39, 53, 200, 87, 26, 21, 43, 232, 171 };
ModesProba[2, 3] = new byte[] { 56, 34, 51, 104, 114, 102, 29, 93, 77 };
ModesProba[2, 4] = new byte[] { 39, 28, 85, 171, 58, 165, 90, 98, 64 };
ModesProba[2, 5] = new byte[] { 34, 22, 116, 206, 23, 34, 43, 166, 73 };
ModesProba[2, 6] = new byte[] { 107, 54, 32, 26, 51, 1, 81, 43, 31 };
ModesProba[2, 7] = new byte[] { 68, 25, 106, 22, 64, 171, 36, 225, 114 };
ModesProba[2, 8] = new byte[] { 34, 19, 21, 102, 132, 188, 16, 76, 124 };
ModesProba[2, 9] = new byte[] { 62, 18, 78, 95, 85, 57, 50, 48, 51 };
ModesProba[3, 0] = new byte[] { 193, 101, 35, 159, 215, 111, 89, 46, 111 };
ModesProba[3, 1] = new byte[] { 60, 148, 31, 172, 219, 228, 21, 18, 111 };
ModesProba[3, 2] = new byte[] { 112, 113, 77, 85, 179, 255, 38, 120, 114 };
ModesProba[3, 3] = new byte[] { 40, 42, 1, 196, 245, 209, 10, 25, 109 };
ModesProba[3, 4] = new byte[] { 88, 43, 29, 140, 166, 213, 37, 43, 154 };
ModesProba[3, 5] = new byte[] { 61, 63, 30, 155, 67, 45, 68, 1, 209 };
ModesProba[3, 6] = new byte[] { 100, 80, 8, 43, 154, 1, 51, 26, 71 };
ModesProba[3, 7] = new byte[] { 142, 78, 78, 16, 255, 128, 34, 197, 171 };
ModesProba[3, 8] = new byte[] { 41, 40, 5, 102, 211, 183, 4, 1, 221 };
ModesProba[3, 9] = new byte[] { 51, 50, 17, 168, 209, 192, 23, 25, 82 };
ModesProba[4, 0] = new byte[] { 138, 31, 36, 171, 27, 166, 38, 44, 229 };
ModesProba[4, 1] = new byte[] { 67, 87, 58, 169, 82, 115, 26, 59, 179 };
ModesProba[4, 2] = new byte[] { 63, 59, 90, 180, 59, 166, 93, 73, 154 };
ModesProba[4, 3] = new byte[] { 40, 40, 21, 116, 143, 209, 34, 39, 175 };
ModesProba[4, 4] = new byte[] { 47, 15, 16, 183, 34, 223, 49, 45, 183 };
ModesProba[4, 5] = new byte[] { 46, 17, 33, 183, 6, 98, 15, 32, 183 };
ModesProba[4, 6] = new byte[] { 57, 46, 22, 24, 128, 1, 54, 17, 37 };
ModesProba[4, 7] = new byte[] { 65, 32, 73, 115, 28, 128, 23, 128, 205 };
ModesProba[4, 8] = new byte[] { 40, 3, 9, 115, 51, 192, 18, 6, 223 };
ModesProba[4, 9] = new byte[] { 87, 37, 9, 115, 59, 77, 64, 21, 47 };
ModesProba[5, 0] = new byte[] { 104, 55, 44, 218, 9, 54, 53, 130, 226 };
ModesProba[5, 1] = new byte[] { 64, 90, 70, 205, 40, 41, 23, 26, 57 };
ModesProba[5, 2] = new byte[] { 54, 57, 112, 184, 5, 41, 38, 166, 213 };
ModesProba[5, 3] = new byte[] { 30, 34, 26, 133, 152, 116, 10, 32, 134 };
ModesProba[5, 4] = new byte[] { 39, 19, 53, 221, 26, 114, 32, 73, 255 };
ModesProba[5, 5] = new byte[] { 31, 9, 65, 234, 2, 15, 1, 118, 73 };
ModesProba[5, 6] = new byte[] { 75, 32, 12, 51, 192, 255, 160, 43, 51 };
ModesProba[5, 7] = new byte[] { 88, 31, 35, 67, 102, 85, 55, 186, 85 };
ModesProba[5, 8] = new byte[] { 56, 21, 23, 111, 59, 205, 45, 37, 192 };
ModesProba[5, 9] = new byte[] { 55, 38, 70, 124, 73, 102, 1, 34, 98 };
ModesProba[6, 0] = new byte[] { 125, 98, 42, 88, 104, 85, 117, 175, 82 };
ModesProba[6, 1] = new byte[] { 95, 84, 53, 89, 128, 100, 113, 101, 45 };
ModesProba[6, 2] = new byte[] { 75, 79, 123, 47, 51, 128, 81, 171, 1 };
ModesProba[6, 3] = new byte[] { 57, 17, 5, 71, 102, 57, 53, 41, 49 };
ModesProba[6, 4] = new byte[] { 38, 33, 13, 121, 57, 73, 26, 1, 85 };
ModesProba[6, 5] = new byte[] { 41, 10, 67, 138, 77, 110, 90, 47, 114 };
ModesProba[6, 6] = new byte[] { 115, 21, 2, 10, 102, 255, 166, 23, 6 };
ModesProba[6, 7] = new byte[] { 101, 29, 16, 10, 85, 128, 101, 196, 26 };
ModesProba[6, 8] = new byte[] { 57, 18, 10, 102, 102, 213, 34, 20, 43 };
ModesProba[6, 9] = new byte[] { 117, 20, 15, 36, 163, 128, 68, 1, 26 };
ModesProba[7, 0] = new byte[] { 102, 61, 71, 37, 34, 53, 31, 243, 192 };
ModesProba[7, 1] = new byte[] { 69, 60, 71, 38, 73, 119, 28, 222, 37 };
ModesProba[7, 2] = new byte[] { 68, 45, 128, 34, 1, 47, 11, 245, 171 };
ModesProba[7, 3] = new byte[] { 62, 17, 19, 70, 146, 85, 55, 62, 70 };
ModesProba[7, 4] = new byte[] { 37, 43, 37, 154, 100, 163, 85, 160, 1 };
ModesProba[7, 5] = new byte[] { 63, 9, 92, 136, 28, 64, 32, 201, 85 };
ModesProba[7, 6] = new byte[] { 75, 15, 9, 9, 64, 255, 184, 119, 16 };
ModesProba[7, 7] = new byte[] { 86, 6, 28, 5, 64, 255, 25, 248, 1 };
ModesProba[7, 8] = new byte[] { 56, 8, 17, 132, 137, 255, 55, 116, 128 };
ModesProba[7, 9] = new byte[] { 58, 15, 20, 82, 135, 57, 26, 121, 40 };
ModesProba[8, 0] = new byte[] { 164, 50, 31, 137, 154, 133, 25, 35, 218 };
ModesProba[8, 1] = new byte[] { 51, 103, 44, 131, 131, 123, 31, 6, 158 };
ModesProba[8, 2] = new byte[] { 86, 40, 64, 135, 148, 224, 45, 183, 128 };
ModesProba[8, 3] = new byte[] { 22, 26, 17, 131, 240, 154, 14, 1, 209 };
ModesProba[8, 4] = new byte[] { 45, 16, 21, 91, 64, 222, 7, 1, 197 };
ModesProba[8, 5] = new byte[] { 56, 21, 39, 155, 60, 138, 23, 102, 213 };
ModesProba[8, 6] = new byte[] { 83, 12, 13, 54, 192, 255, 68, 47, 28 };
ModesProba[8, 7] = new byte[] { 85, 26, 85, 85, 128, 128, 32, 146, 171 };
ModesProba[8, 8] = new byte[] { 18, 11, 7, 63, 144, 171, 4, 4, 246 };
ModesProba[8, 9] = new byte[] { 35, 27, 10, 146, 174, 171, 12, 26, 128 };
ModesProba[9, 0] = new byte[] { 190, 80, 35, 99, 180, 80, 126, 54, 45 };
ModesProba[9, 1] = new byte[] { 85, 126, 47, 87, 176, 51, 41, 20, 32 };
ModesProba[9, 2] = new byte[] { 101, 75, 128, 139, 118, 146, 116, 128, 85 };
ModesProba[9, 3] = new byte[] { 56, 41, 15, 176, 236, 85, 37, 9, 62 };
ModesProba[9, 4] = new byte[] { 71, 30, 17, 119, 118, 255, 17, 18, 138 };
ModesProba[9, 5] = new byte[] { 101, 38, 60, 138, 55, 70, 43, 26, 142 };
ModesProba[9, 6] = new byte[] { 146, 36, 19, 30, 171, 255, 97, 27, 20 };
ModesProba[9, 7] = new byte[] { 138, 45, 61, 62, 219, 1, 81, 188, 64 };
ModesProba[9, 8] = new byte[] { 32, 41, 20, 117, 151, 142, 20, 21, 163 };
ModesProba[9, 9] = new byte[] { 112, 19, 12, 61, 195, 128, 48, 4, 24 };
}
}
}

340
src/ImageSharp/Formats/WebP/WebPConstants.cs
View File

@ -151,69 +151,6 @@ namespace SixLabors.ImageSharp.Formats.WebP
0 + (12 * Bps), 4 + (12 * Bps), 8 + (12 * Bps), 12 + (12 * Bps)
};
// 31 ^ clz(i)
public static readonly byte[] LogTable8bit =
{
0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
};
// Paragraph 14.1
public static readonly int[] DcTable =
{
4, 5, 6, 7, 8, 9, 10, 10,
11, 12, 13, 14, 15, 16, 17, 17,
18, 19, 20, 20, 21, 21, 22, 22,
23, 23, 24, 25, 25, 26, 27, 28,
29, 30, 31, 32, 33, 34, 35, 36,
37, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 46, 47, 48, 49, 50,
51, 52, 53, 54, 55, 56, 57, 58,
59, 60, 61, 62, 63, 64, 65, 66,
67, 68, 69, 70, 71, 72, 73, 74,
75, 76, 76, 77, 78, 79, 80, 81,
82, 83, 84, 85, 86, 87, 88, 89,
91, 93, 95, 96, 98, 100, 101, 102,
104, 106, 108, 110, 112, 114, 116, 118,
122, 124, 126, 128, 130, 132, 134, 136,
138, 140, 143, 145, 148, 151, 154, 157
};
// Paragraph 14.1
public static readonly int[] AcTable =
{
4, 5, 6, 7, 8, 9, 10, 11,
12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27,
28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40, 41, 42, 43,
44, 45, 46, 47, 48, 49, 50, 51,
52, 53, 54, 55, 56, 57, 58, 60,
62, 64, 66, 68, 70, 72, 74, 76,
78, 80, 82, 84, 86, 88, 90, 92,
94, 96, 98, 100, 102, 104, 106, 108,
110, 112, 114, 116, 119, 122, 125, 128,
131, 134, 137, 140, 143, 146, 149, 152,
155, 158, 161, 164, 167, 170, 173, 177,
181, 185, 189, 193, 197, 201, 205, 209,
213, 217, 221, 225, 229, 234, 239, 245,
249, 254, 259, 264, 269, 274, 279, 284
};
// Residual decoding (Paragraph 13.2 / 13.3)
public static readonly byte[] Cat3 = { 173, 148, 140 };
public static readonly byte[] Cat4 = { 176, 155, 140, 135 };
@ -233,282 +170,5 @@ namespace SixLabors.ImageSharp.Formats.WebP
-7, 8,
-8, -9
};
// Paragraph 13
public static readonly byte[,,,] CoeffsUpdateProba =
{
{ { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
},
{ { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 },
{ 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 }
},
{ { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
},
{ { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 }
},
{ { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
},
{ { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 },
{ 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
},
{ { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 },
{ 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }
}
}
};
// Paragraph 13.5: Default Token Probability Table.
public static readonly byte[,,,] DefaultCoeffsProba =
{
{
{ { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 },
{ 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 },
{ 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 }
},
{ { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 },
{ 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 },
{ 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 },
},
{ { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 },
{ 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 },
{ 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 },
},
{ { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 },
{ 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 },
{ 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 }
},
{ { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 },
{ 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 },
{ 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 }
},
{ { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 },
{ 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 },
{ 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 }
},
{ { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
}
},
{
{ { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 },
{ 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 },
{ 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 }
},
{ { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 },
{ 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 },
{ 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 }
},
{ { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 },
{ 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 },
{ 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 }
},
{ { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 },
{ 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 },
{ 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 }
},
{ { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 },
{ 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 },
{ 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 }
},
{ { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 },
{ 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 },
{ 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 }
},
{ { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 },
{ 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 },
{ 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 }
},
{ { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 },
{ 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 }
}
},
{ { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 },
{ 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 },
{ 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 }
},
{ { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 },
{ 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 },
{ 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 }
},
{ { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 },
{ 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 },
{ 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 }
},
{ { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 },
{ 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 }
},
{ { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 },
{ 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 },
{ 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
},
{ { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }
}
},
{
{ { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 },
{ 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 },
{ 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 }
},
{ { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 },
{ 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 },
{ 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 }
},
{ { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 },
{ 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 },
{ 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 }
},
{ { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 },
{ 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 },
{ 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 }
},
{ { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 },
{ 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 },
{ 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 }
},
{ { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 },
{ 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 },
{ 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 }
},
{ { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 },
{ 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 },
{ 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 }
},
{ { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 },
{ 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }
}
}
};
}
}

149
src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs
View File

@ -18,28 +18,15 @@ namespace SixLabors.ImageSharp.Formats.WebP
private readonly MemoryAllocator memoryAllocator;
private readonly byte[,][] bModesProba = new byte[10, 10][];
public WebPLossyDecoder(Vp8BitReader bitReader, MemoryAllocator memoryAllocator)
{
this.memoryAllocator = memoryAllocator;
this.bitReader = bitReader;
this.InitializeModesProbabilities();
}
public void Decode<TPixel>(Buffer2D<TPixel> pixels, int width, int height, WebPImageInfo info)
where TPixel : struct, IPixel<TPixel>
{
// we need buffers for Y U and V in size of the image
// TODO: increase size to enable using all prediction blocks? (see https://tools.ietf.org/html/rfc6386#page-9 )
Buffer2D<YUVPixel> yuvBufferCurrentFrame = this.memoryAllocator.Allocate2D<YUVPixel>(width, height);
// TODO: var predictionBuffer - macro-block-sized with approximation of the portion of the image being reconstructed.
// those prediction values are the base, the values from DCT processing are added to that
// TODO residue signal from DCT: 4x4 blocks of DCT transforms, 16Y, 4U, 4V
Vp8Profile vp8Profile = this.DecodeProfile(info.Vp8Profile);
// Paragraph 9.2: color space and clamp type follow.
sbyte colorSpace = (sbyte)this.bitReader.ReadValue(1);
sbyte clampType = (sbyte)this.bitReader.ReadValue(1);
@ -176,7 +163,7 @@ namespace SixLabors.ImageSharp.Formats.WebP
int yMode = left[y];
for (int x = 0; x < 4; ++x)
{
byte[] prob = this.bModesProba[top[x], yMode];
byte[] prob = Vp8LookupTables.ModesProba[top[x], yMode];
int i = WebPConstants.YModesIntra4[this.bitReader.GetBit(prob[0])];
while (i > 0)
{
@ -326,7 +313,7 @@ namespace SixLabors.ImageSharp.Formats.WebP
if (mbx >= dec.MbWidth - 1)
{
// On rightmost border.
LossyUtils.Memset(topRight, topYuv.Y[15],0, 4);
LossyUtils.Memset(topRight, topYuv.Y[15], 0, 4);
}
else
{
@ -1242,20 +1229,20 @@ namespace SixLabors.ImageSharp.Formats.WebP
}
Vp8QuantMatrix m = decoder.DeQuantMatrices[i];
m.Y1Mat[0] = WebPConstants.DcTable[Clip(q + dqy1Dc, 127)];
m.Y1Mat[1] = WebPConstants.AcTable[Clip(q + 0, 127)];
m.Y2Mat[0] = WebPConstants.DcTable[Clip(q + dqy2Dc, 127)] * 2;
m.Y1Mat[0] = Vp8LookupTables.DcTable[Clip(q + dqy1Dc, 127)];
m.Y1Mat[1] = Vp8LookupTables.AcTable[Clip(q + 0, 127)];
m.Y2Mat[0] = Vp8LookupTables.DcTable[Clip(q + dqy2Dc, 127)] * 2;
// For all x in [0..284], x*155/100 is bitwise equal to (x*101581) >> 16.
// The smallest precision for that is '(x*6349) >> 12' but 16 is a good word size.
m.Y2Mat[1] = (WebPConstants.AcTable[Clip(q + dqy2Ac, 127)] * 101581) >> 16;
m.Y2Mat[1] = (Vp8LookupTables.AcTable[Clip(q + dqy2Ac, 127)] * 101581) >> 16;
if (m.Y2Mat[1] < 8)
{
m.Y2Mat[1] = 8;
}
m.UvMat[0] = WebPConstants.DcTable[Clip(q + dquvDc, 117)];
m.UvMat[1] = WebPConstants.AcTable[Clip(q + dquvAc, 127)];
m.UvMat[0] = Vp8LookupTables.DcTable[Clip(q + dquvDc, 117)];
m.UvMat[1] = Vp8LookupTables.AcTable[Clip(q + dquvAc, 127)];
// For dithering strength evaluation.
m.UvQuant = q + dquvAc;
@ -1274,10 +1261,10 @@ namespace SixLabors.ImageSharp.Formats.WebP
{
for (int p = 0; p < WebPConstants.NumProbas; ++p)
{
byte prob = WebPConstants.CoeffsUpdateProba[t, b, c, p];
byte prob = Vp8LookupTables.CoeffsUpdateProba[t, b, c, p];
int v = this.bitReader.GetBit(prob) != 0
? (int)this.bitReader.ReadValue(8)
: WebPConstants.DefaultCoeffsProba[t, b, c, p];
: Vp8LookupTables.DefaultCoeffsProba[t, b, c, p];
proba.Bands[t, b].Probabilities[c].Probabilities[p] = (byte)v;
}
}
@ -1427,121 +1414,5 @@ namespace SixLabors.ImageSharp.Formats.WebP
{
return value < 0 ? 0 : value > max ? max : value;
}
// TODO: move to LookupTables
private void InitializeModesProbabilities()
{
// Paragraph 11.5
this.bModesProba[0, 0] = new byte[] { 231, 120, 48, 89, 115, 113, 120, 152, 112 };
this.bModesProba[0, 1] = new byte[] { 152, 179, 64, 126, 170, 118, 46, 70, 95 };
this.bModesProba[0, 2] = new byte[] { 175, 69, 143, 80, 85, 82, 72, 155, 103 };
this.bModesProba[0, 3] = new byte[] { 56, 58, 10, 171, 218, 189, 17, 13, 152 };
this.bModesProba[0, 4] = new byte[] { 114, 26, 17, 163, 44, 195, 21, 10, 173 };
this.bModesProba[0, 5] = new byte[] { 121, 24, 80, 195, 26, 62, 44, 64, 85 };
this.bModesProba[0, 6] = new byte[] { 144, 71, 10, 38, 171, 213, 144, 34, 26 };
this.bModesProba[0, 7] = new byte[] { 170, 46, 55, 19, 136, 160, 33, 206, 71 };
this.bModesProba[0, 8] = new byte[] { 63, 20, 8, 114, 114, 208, 12, 9, 226 };
this.bModesProba[0, 9] = new byte[] { 81, 40, 11, 96, 182, 84, 29, 16, 36 };
this.bModesProba[1, 0] = new byte[] { 134, 183, 89, 137, 98, 101, 106, 165, 148 };
this.bModesProba[1, 1] = new byte[] { 72, 187, 100, 130, 157, 111, 32, 75, 80 };
this.bModesProba[1, 2] = new byte[] { 66, 102, 167, 99, 74, 62, 40, 234, 128 };
this.bModesProba[1, 3] = new byte[] { 41, 53, 9, 178, 241, 141, 26, 8, 107 };
this.bModesProba[1, 4] = new byte[] { 74, 43, 26, 146, 73, 166, 49, 23, 157 };
this.bModesProba[1, 5] = new byte[] { 65, 38, 105, 160, 51, 52, 31, 115, 128 };
this.bModesProba[1, 6] = new byte[] { 104, 79, 12, 27, 217, 255, 87, 17, 7 };
this.bModesProba[1, 7] = new byte[] { 87, 68, 71, 44, 114, 51, 15, 186, 23 };
this.bModesProba[1, 8] = new byte[] { 47, 41, 14, 110, 182, 183, 21, 17, 194 };
this.bModesProba[1, 9] = new byte[] { 66, 45, 25, 102, 197, 189, 23, 18, 22 };
this.bModesProba[2, 0] = new byte[] { 88, 88, 147, 150, 42, 46, 45, 196, 205 };
this.bModesProba[2, 1] = new byte[] { 43, 97, 183, 117, 85, 38, 35, 179, 61 };
this.bModesProba[2, 2] = new byte[] { 39, 53, 200, 87, 26, 21, 43, 232, 171 };
this.bModesProba[2, 3] = new byte[] { 56, 34, 51, 104, 114, 102, 29, 93, 77 };
this.bModesProba[2, 4] = new byte[] { 39, 28, 85, 171, 58, 165, 90, 98, 64 };
this.bModesProba[2, 5] = new byte[] { 34, 22, 116, 206, 23, 34, 43, 166, 73 };
this.bModesProba[2, 6] = new byte[] { 107, 54, 32, 26, 51, 1, 81, 43, 31 };
this.bModesProba[2, 7] = new byte[] { 68, 25, 106, 22, 64, 171, 36, 225, 114 };
this.bModesProba[2, 8] = new byte[] { 34, 19, 21, 102, 132, 188, 16, 76, 124 };
this.bModesProba[2, 9] = new byte[] { 62, 18, 78, 95, 85, 57, 50, 48, 51 };
this.bModesProba[3, 0] = new byte[] { 193, 101, 35, 159, 215, 111, 89, 46, 111 };
this.bModesProba[3, 1] = new byte[] { 60, 148, 31, 172, 219, 228, 21, 18, 111 };
this.bModesProba[3, 2] = new byte[] { 112, 113, 77, 85, 179, 255, 38, 120, 114 };
this.bModesProba[3, 3] = new byte[] { 40, 42, 1, 196, 245, 209, 10, 25, 109 };
this.bModesProba[3, 4] = new byte[] { 88, 43, 29, 140, 166, 213, 37, 43, 154 };
this.bModesProba[3, 5] = new byte[] { 61, 63, 30, 155, 67, 45, 68, 1, 209 };
this.bModesProba[3, 6] = new byte[] { 100, 80, 8, 43, 154, 1, 51, 26, 71 };
this.bModesProba[3, 7] = new byte[] { 142, 78, 78, 16, 255, 128, 34, 197, 171 };
this.bModesProba[3, 8] = new byte[] { 41, 40, 5, 102, 211, 183, 4, 1, 221 };
this.bModesProba[3, 9] = new byte[] { 51, 50, 17, 168, 209, 192, 23, 25, 82 };
this.bModesProba[4, 0] = new byte[] { 138, 31, 36, 171, 27, 166, 38, 44, 229 };
this.bModesProba[4, 1] = new byte[] { 67, 87, 58, 169, 82, 115, 26, 59, 179 };
this.bModesProba[4, 2] = new byte[] { 63, 59, 90, 180, 59, 166, 93, 73, 154 };
this.bModesProba[4, 3] = new byte[] { 40, 40, 21, 116, 143, 209, 34, 39, 175 };
this.bModesProba[4, 4] = new byte[] { 47, 15, 16, 183, 34, 223, 49, 45, 183 };
this.bModesProba[4, 5] = new byte[] { 46, 17, 33, 183, 6, 98, 15, 32, 183 };
this.bModesProba[4, 6] = new byte[] { 57, 46, 22, 24, 128, 1, 54, 17, 37 };
this.bModesProba[4, 7] = new byte[] { 65, 32, 73, 115, 28, 128, 23, 128, 205 };
this.bModesProba[4, 8] = new byte[] { 40, 3, 9, 115, 51, 192, 18, 6, 223 };
this.bModesProba[4, 9] = new byte[] { 87, 37, 9, 115, 59, 77, 64, 21, 47 };
this.bModesProba[5, 0] = new byte[] { 104, 55, 44, 218, 9, 54, 53, 130, 226 };
this.bModesProba[5, 1] = new byte[] { 64, 90, 70, 205, 40, 41, 23, 26, 57 };
this.bModesProba[5, 2] = new byte[] { 54, 57, 112, 184, 5, 41, 38, 166, 213 };
this.bModesProba[5, 3] = new byte[] { 30, 34, 26, 133, 152, 116, 10, 32, 134 };
this.bModesProba[5, 4] = new byte[] { 39, 19, 53, 221, 26, 114, 32, 73, 255 };
this.bModesProba[5, 5] = new byte[] { 31, 9, 65, 234, 2, 15, 1, 118, 73 };
this.bModesProba[5, 6] = new byte[] { 75, 32, 12, 51, 192, 255, 160, 43, 51 };
this.bModesProba[5, 7] = new byte[] { 88, 31, 35, 67, 102, 85, 55, 186, 85 };
this.bModesProba[5, 8] = new byte[] { 56, 21, 23, 111, 59, 205, 45, 37, 192 };
this.bModesProba[5, 9] = new byte[] { 55, 38, 70, 124, 73, 102, 1, 34, 98 };
this.bModesProba[6, 0] = new byte[] { 125, 98, 42, 88, 104, 85, 117, 175, 82 };
this.bModesProba[6, 1] = new byte[] { 95, 84, 53, 89, 128, 100, 113, 101, 45 };
this.bModesProba[6, 2] = new byte[] { 75, 79, 123, 47, 51, 128, 81, 171, 1 };
this.bModesProba[6, 3] = new byte[] { 57, 17, 5, 71, 102, 57, 53, 41, 49 };
this.bModesProba[6, 4] = new byte[] { 38, 33, 13, 121, 57, 73, 26, 1, 85 };
this.bModesProba[6, 5] = new byte[] { 41, 10, 67, 138, 77, 110, 90, 47, 114 };
this.bModesProba[6, 6] = new byte[] { 115, 21, 2, 10, 102, 255, 166, 23, 6 };
this.bModesProba[6, 7] = new byte[] { 101, 29, 16, 10, 85, 128, 101, 196, 26 };
this.bModesProba[6, 8] = new byte[] { 57, 18, 10, 102, 102, 213, 34, 20, 43 };
this.bModesProba[6, 9] = new byte[] { 117, 20, 15, 36, 163, 128, 68, 1, 26 };
this.bModesProba[7, 0] = new byte[] { 102, 61, 71, 37, 34, 53, 31, 243, 192 };
this.bModesProba[7, 1] = new byte[] { 69, 60, 71, 38, 73, 119, 28, 222, 37 };
this.bModesProba[7, 2] = new byte[] { 68, 45, 128, 34, 1, 47, 11, 245, 171 };
this.bModesProba[7, 3] = new byte[] { 62, 17, 19, 70, 146, 85, 55, 62, 70 };
this.bModesProba[7, 4] = new byte[] { 37, 43, 37, 154, 100, 163, 85, 160, 1 };
this.bModesProba[7, 5] = new byte[] { 63, 9, 92, 136, 28, 64, 32, 201, 85 };
this.bModesProba[7, 6] = new byte[] { 75, 15, 9, 9, 64, 255, 184, 119, 16 };
this.bModesProba[7, 7] = new byte[] { 86, 6, 28, 5, 64, 255, 25, 248, 1 };
this.bModesProba[7, 8] = new byte[] { 56, 8, 17, 132, 137, 255, 55, 116, 128 };
this.bModesProba[7, 9] = new byte[] { 58, 15, 20, 82, 135, 57, 26, 121, 40 };
this.bModesProba[8, 0] = new byte[] { 164, 50, 31, 137, 154, 133, 25, 35, 218 };
this.bModesProba[8, 1] = new byte[] { 51, 103, 44, 131, 131, 123, 31, 6, 158 };
this.bModesProba[8, 2] = new byte[] { 86, 40, 64, 135, 148, 224, 45, 183, 128 };
this.bModesProba[8, 3] = new byte[] { 22, 26, 17, 131, 240, 154, 14, 1, 209 };
this.bModesProba[8, 4] = new byte[] { 45, 16, 21, 91, 64, 222, 7, 1, 197 };
this.bModesProba[8, 5] = new byte[] { 56, 21, 39, 155, 60, 138, 23, 102, 213 };
this.bModesProba[8, 6] = new byte[] { 83, 12, 13, 54, 192, 255, 68, 47, 28 };
this.bModesProba[8, 7] = new byte[] { 85, 26, 85, 85, 128, 128, 32, 146, 171 };
this.bModesProba[8, 8] = new byte[] { 18, 11, 7, 63, 144, 171, 4, 4, 246 };
this.bModesProba[8, 9] = new byte[] { 35, 27, 10, 146, 174, 171, 12, 26, 128 };
this.bModesProba[9, 0] = new byte[] { 190, 80, 35, 99, 180, 80, 126, 54, 45 };
this.bModesProba[9, 1] = new byte[] { 85, 126, 47, 87, 176, 51, 41, 20, 32 };
this.bModesProba[9, 2] = new byte[] { 101, 75, 128, 139, 118, 146, 116, 128, 85 };
this.bModesProba[9, 3] = new byte[] { 56, 41, 15, 176, 236, 85, 37, 9, 62 };
this.bModesProba[9, 4] = new byte[] { 71, 30, 17, 119, 118, 255, 17, 18, 138 };
this.bModesProba[9, 5] = new byte[] { 101, 38, 60, 138, 55, 70, 43, 26, 142 };
this.bModesProba[9, 6] = new byte[] { 146, 36, 19, 30, 171, 255, 97, 27, 20 };
this.bModesProba[9, 7] = new byte[] { 138, 45, 61, 62, 219, 1, 81, 188, 64 };
this.bModesProba[9, 8] = new byte[] { 32, 41, 20, 117, 151, 142, 20, 21, 163 };
this.bModesProba[9, 9] = new byte[] { 112, 19, 12, 61, 195, 128, 48, 4, 24 };
}
}
struct YUVPixel
{
public byte Y { get; }
public byte U { get; }
public byte V { get; }
}
}

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