| Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * Copyright (C) 2015 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at: |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | * |
| 17 | ***************************************************************************** |
| 18 | * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| 19 | */ |
| 20 | /** |
| 21 | ******************************************************************************* |
| 22 | * @file |
| 23 | * ih264_deblk_tables.h |
| 24 | * |
| 25 | * @brief |
| 26 | * This file contains declarations of tables used for deblocking |
| 27 | * |
| 28 | * @author |
| 29 | * Ittiam |
| 30 | * |
| 31 | * @par List of Functions: |
| 32 | * |
| 33 | * @remarks |
| 34 | * None |
| 35 | * |
| 36 | ******************************************************************************* |
| 37 | */ |
| 38 | |
| 39 | #ifndef IH264_DEBLK_TABLES_H_ |
| 40 | #define IH264_DEBLK_TABLES_H_ |
| 41 | |
| 42 | /*****************************************************************************/ |
| 43 | /* Extern global declarations */ |
| 44 | /*****************************************************************************/ |
| 45 | |
| 46 | /** |
| 47 | ****************************************************************************** |
| 48 | * @brief alpha & beta tables for deblocking |
| 49 | * input : indexA [0-51] & indexB [0-51] |
| 50 | * output : alpha & beta |
| 51 | * |
| 52 | * @remarks Table 8-16 in H264 Specification, |
| 53 | * Derivation of offset dependent threshold variables |
| 54 | * alpha and beta from indexA and indexB |
| 55 | ****************************************************************************** |
| 56 | */ |
| 57 | extern const UWORD8 gu1_ih264_alpha_table[52]; |
| 58 | |
| 59 | extern const UWORD8 gu1_ih264_beta_table[52]; |
| 60 | |
| 61 | /** |
| 62 | ****************************************************************************** |
| 63 | * @brief t'C0 table for deblocking |
| 64 | * input : indexA [0-51] and bS [1,3] |
| 65 | * output : t'C0 |
| 66 | * |
| 67 | * @remarks Table 8-17 in H264 Specification, |
| 68 | * Value of variable t'C0 as a function of indexA and bS |
| 69 | ****************************************************************************** |
| 70 | */ |
| 71 | extern const UWORD8 gu1_ih264_clip_table[52][4]; |
| 72 | |
| 73 | #endif /* IH264_DEBLK_TABLES_H_ */ |