| 1 | /***************************************************************************** |
| 2 | * Copyright (C) 2013 x265 project |
| 3 | * |
| 4 | * Authors: Praveen Kumar Tiwari <praveen@multicorewareinc.com> |
| 5 | * Dnyaneshwar Gorade <dnyaneshwar@multicorewareinc.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA. |
| 20 | * |
| 21 | * This program is also available under a commercial proprietary license. |
| 22 | * For more information, contact us at license @ x265.com. |
| 23 | *****************************************************************************/ |
| 24 | |
| 25 | #include "common.h" |
| 26 | #include "primitives.h" |
| 27 | |
| 28 | #define PIXEL_MIN 0 |
| 29 | #define PIXEL_MAX ((1 << X265_DEPTH) - 1) |
| 30 | |
| 31 | void processSaoCUE0(pixel * rec, int8_t * offsetEo, int width, int8_t signLeft) |
| 32 | { |
| 33 | int x; |
| 34 | int8_t signRight; |
| 35 | int8_t edgeType; |
| 36 | |
| 37 | for (x = 0; x < width; x++) |
| 38 | { |
| 39 | signRight = ((rec[x] - rec[x + 1]) < 0) ? -1 : ((rec[x] - rec[x + 1]) > 0) ? 1 : 0; |
| 40 | edgeType = signRight + signLeft + 2; |
| 41 | signLeft = -signRight; |
| 42 | |
| 43 | short v = rec[x] + offsetEo[edgeType]; |
| 44 | rec[x] = (pixel)(v < 0 ? 0 : (v > (PIXEL_MAX)) ? (PIXEL_MAX) : v); |
| 45 | } |
| 46 | } |
| 47 | |
| 48 | namespace x265 { |
| 49 | void Setup_C_LoopFilterPrimitives(EncoderPrimitives &p) |
| 50 | { |
| 51 | p.saoCuOrgE0 = processSaoCUE0; |
| 52 | } |
| 53 | } |