| // Copyright 2021 The libgav1 Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // Each row below contains weights used for a corresponding block size. Because |
| // they are adjacent powers of 2, the index of each row is the sum of the sizes |
| // of preceding rows, minus 4. |
| // The weights need to be declared as uint8_t or uint16_t, depending on the |
| // bitdepth, so the values are held in a single canonical place. |
| // clang-format off |
| // block dimension = 4 |
| 255, 149, 85, 64, |
| // block dimension = 8 |
| 255, 197, 146, 105, 73, 50, 37, 32, |
| // block dimension = 16 |
| 255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16, |
| // block dimension = 32 |
| 255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74, |
| 66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8, |
| // block dimension = 64 |
| 255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156, |
| 150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, |
| 69, 65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, |
| 15, 13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4 |
| // clang-format on |
