| /****************************************************************************** |
| * |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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. |
| * |
| ***************************************************************************** |
| * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore |
| */ |
| /** |
| ******************************************************************************* |
| * @file |
| * ideint_defs.h |
| * |
| * @brief |
| * Contains deinterlacer definitions |
| * |
| * @author |
| * Ittiam |
| * |
| * @par List of Functions: |
| * |
| * @remarks |
| * None |
| * |
| ******************************************************************************* |
| */ |
| |
| #ifndef __IDEINT_DEFS_H__ |
| #define __IDEINT_DEFS_H__ |
| |
| #define ADJ_SAD_THRESH (6 * (FLD_BLK_SIZE * 2)) // *2 : 2 way collapsing (col+row) |
| |
| #define RSUM_CSUM_THRESH_PER_PEL 5//0 |
| |
| /* Block dimensions. All the decisions (which method to be used) are */ |
| /* made on block basis. The blk level decisions help us in */ |
| /* reducing the time-complexity of the algorithm. */ |
| #define BLK_WD_SHIFT 3 |
| #define BLK_HT_SHIFT 3 |
| |
| #define BLK_WD (1 << BLK_WD_SHIFT ) |
| #define BLK_HT (1 << BLK_HT_SHIFT) |
| |
| #define FLD_BLK_SIZE (BLK_WD * (BLK_HT >> 1)) |
| |
| |
| /* Inside the algorithm, the block itself is divided amongst further */ |
| /* smaller blocks. */ |
| #define SUB_BLK_WD (BLK_WD >> 1) |
| #define SUB_BLK_HT (BLK_HT >> 1) /* field dimensions. */ |
| |
| #define FLD_SUB_BLK_SIZE (SUB_BLK_WD * SUB_BLK_HT) |
| |
| |
| /*****************************************************************************/ |
| /* Stationarity check threshold, used in deciding when to weave. */ |
| /*****************************************************************************/ |
| #define ST_THRESH ((15 * FLD_BLK_SIZE) >> 1) |
| |
| #define MOD_IDX_ST_NUM 3 |
| #define MOD_IDX_ST_SHIFT 1 |
| |
| #define VAR_AVG_LUMA 735 |
| #define VAR_AVG_CHROMA 38 |
| |
| /*****************************************************************************/ |
| /* Threshold to choose the fallback method out of Bob and 3-field Kernel */ |
| /* method. */ |
| /*****************************************************************************/ |
| #define FB_THRESH (32 * FLD_BLK_SIZE) |
| |
| #define MOD_IDX_FB 4 |
| |
| |
| #define EDGE_BIAS_0 5 |
| #define EDGE_BIAS_1 7 |
| |
| /*****************************************************************************/ |
| /* Adjacent correlation bias, used in biasing the adjacent correlation over */ |
| /* the alternate one, while comparing the two; in the combing-artifact-check */ |
| /* function. */ |
| /*****************************************************************************/ |
| #define SAD_BIAS_ADDITIVE (FLD_SUB_BLK_SIZE >> 1) |
| |
| /*****************************************************************************/ |
| /* Mult bias is 1.125 = 9/8. Multiplication by this number is done in two */ |
| /* stpes, first multiplication by 9 and then shift by 3. */ |
| /*****************************************************************************/ |
| #define SAD_BIAS_MULT_SHIFT 3 |
| |
| /*****************************************************************************/ |
| /* row_sum threshold, used for making the combing artifact check more robust */ |
| /* against the noise (e.g. ringing) by rejecting insignificant pixel */ |
| /* difference across two adjacent rows; in the combing artifact check */ |
| /* function. */ |
| /*****************************************************************************/ |
| #define RSUM_CSUM_THRESH (RSUM_CSUM_THRESH_PER_PEL * SUB_BLK_WD) |
| |
| /*****************************************************************************/ |
| /* The 3-field filter is of type [-k 2k -k, 0.5 0.5, -k 2k -k], where k is */ |
| /* the COEFF_THREE_FIELD defined below. */ |
| /*****************************************************************************/ |
| #define COEFF_THREE_FIELD 13 |
| |
| /*****************************************************************************/ |
| /* Definitions used by the variance calculations module. */ |
| /*****************************************************************************/ |
| #define SQR_SUB_BLK_SZ (FLD_BLK_SIZE * FLD_BLK_SIZE) |
| #define SUB_BLK_SZ_SHIFT 5 /* 2^5 = 32 */ |
| #define SQR_SUB_BLK_SZ_SHIFT (SUB_BLK_SZ_SHIFT << 1) /* 2^10 = 1024 = 32 * 32 */ |
| |
| |
| |
| #endif /* __IDEINT_DEFS_H__ */ |
