| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2015-2016 Kieran Kunhya <kieran@kunhya.com> | ||
| 3 | * | ||
| 4 | * This file is part of FFmpeg. | ||
| 5 | * | ||
| 6 | * FFmpeg is free software; you can redistribute it and/or | ||
| 7 | * modify it under the terms of the GNU Lesser General Public | ||
| 8 | * License as published by the Free Software Foundation; either | ||
| 9 | * version 2.1 of the License, or (at your option) any later version. | ||
| 10 | * | ||
| 11 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 14 | * Lesser General Public License for more details. | ||
| 15 | * | ||
| 16 | * You should have received a copy of the GNU Lesser General Public | ||
| 17 | * License along with FFmpeg; if not, write to the Free Software | ||
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 19 | */ | ||
| 20 | |||
| 21 | #include "libavutil/attributes.h" | ||
| 22 | #include "libavutil/common.h" | ||
| 23 | |||
| 24 | #include "cfhdencdsp.h" | ||
| 25 | |||
| 26 | ✗ | static av_always_inline void filter(const int16_t *input, ptrdiff_t in_stride, | |
| 27 | int16_t *low, ptrdiff_t low_stride, | ||
| 28 | int16_t *high, ptrdiff_t high_stride, | ||
| 29 | int len) | ||
| 30 | { | ||
| 31 | ✗ | low[(0>>1) * low_stride] = av_clip_int16(input[0*in_stride] + input[1*in_stride]); | |
| 32 | ✗ | high[(0>>1) * high_stride] = av_clip_int16((5 * input[0*in_stride] - 11 * input[1*in_stride] + | |
| 33 | ✗ | 4 * input[2*in_stride] + 4 * input[3*in_stride] - | |
| 34 | ✗ | 1 * input[4*in_stride] - 1 * input[5*in_stride] + 4) >> 3); | |
| 35 | |||
| 36 | ✗ | for (int i = 2; i < len - 2; i += 2) { | |
| 37 | ✗ | low[(i>>1) * low_stride] = av_clip_int16(input[i*in_stride] + input[(i+1)*in_stride]); | |
| 38 | ✗ | high[(i>>1) * high_stride] = av_clip_int16(((-input[(i-2)*in_stride] - input[(i-1)*in_stride] + | |
| 39 | ✗ | input[(i+2)*in_stride] + input[(i+3)*in_stride] + 4) >> 3) + | |
| 40 | ✗ | input[(i+0)*in_stride] - input[(i+1)*in_stride]); | |
| 41 | } | ||
| 42 | |||
| 43 | ✗ | low[((len-2)>>1) * low_stride] = av_clip_int16(input[((len-2)+0)*in_stride] + input[((len-2)+1)*in_stride]); | |
| 44 | ✗ | high[((len-2)>>1) * high_stride] = av_clip_int16((11* input[((len-2)+0)*in_stride] - 5 * input[((len-2)+1)*in_stride] - | |
| 45 | ✗ | 4 * input[((len-2)-1)*in_stride] - 4 * input[((len-2)-2)*in_stride] + | |
| 46 | ✗ | 1 * input[((len-2)-3)*in_stride] + 1 * input[((len-2)-4)*in_stride] + 4) >> 3); | |
| 47 | ✗ | } | |
| 48 | |||
| 49 | ✗ | static void horiz_filter(const int16_t *input, int16_t *low, int16_t *high, | |
| 50 | ptrdiff_t in_stride, ptrdiff_t low_stride, | ||
| 51 | ptrdiff_t high_stride, | ||
| 52 | int width, int height) | ||
| 53 | { | ||
| 54 | ✗ | for (int i = 0; i < height; i++) { | |
| 55 | ✗ | filter(input, 1, low, 1, high, 1, width); | |
| 56 | ✗ | input += in_stride; | |
| 57 | ✗ | low += low_stride; | |
| 58 | ✗ | high += high_stride; | |
| 59 | } | ||
| 60 | ✗ | } | |
| 61 | |||
| 62 | ✗ | static void vert_filter(const int16_t *input, int16_t *low, int16_t *high, | |
| 63 | ptrdiff_t in_stride, ptrdiff_t low_stride, | ||
| 64 | ptrdiff_t high_stride, | ||
| 65 | int width, int height) | ||
| 66 | { | ||
| 67 | ✗ | for (int i = 0; i < width; i++) | |
| 68 | ✗ | filter(&input[i], in_stride, &low[i], low_stride, &high[i], high_stride, height); | |
| 69 | ✗ | } | |
| 70 | |||
| 71 | ✗ | av_cold void ff_cfhdencdsp_init(CFHDEncDSPContext *c) | |
| 72 | { | ||
| 73 | ✗ | c->horiz_filter = horiz_filter; | |
| 74 | ✗ | c->vert_filter = vert_filter; | |
| 75 | |||
| 76 | #if ARCH_X86 | ||
| 77 | ✗ | ff_cfhdencdsp_init_x86(c); | |
| 78 | #endif | ||
| 79 | ✗ | } | |
| 80 |