| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Copyright (c) 2015 Ronald S. Bultje <rsbultje@gmail.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 "config.h" | ||
| 22 | |||
| 23 | #include <stddef.h> | ||
| 24 | #include <stdint.h> | ||
| 25 | |||
| 26 | #include "psnr.h" | ||
| 27 | |||
| 28 | 7920 | static uint64_t sse_line_8bit(const uint8_t *main_line, const uint8_t *ref_line, int outw) | |
| 29 | { | ||
| 30 | int j; | ||
| 31 | 7920 | unsigned m2 = 0; | |
| 32 | |||
| 33 |
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1753680 | for (j = 0; j < outw; j++) { |
| 34 | 1745760 | unsigned error = main_line[j] - ref_line[j]; | |
| 35 | |||
| 36 | 1745760 | m2 += error * error; | |
| 37 | } | ||
| 38 | |||
| 39 | 7920 | return m2; | |
| 40 | } | ||
| 41 | |||
| 42 | 150000 | static uint64_t sse_line_16bit(const uint8_t *_main_line, const uint8_t *_ref_line, int outw) | |
| 43 | { | ||
| 44 | int j; | ||
| 45 | 150000 | uint64_t m2 = 0; | |
| 46 | 150000 | const uint16_t *main_line = (const uint16_t *) _main_line; | |
| 47 | 150000 | const uint16_t *ref_line = (const uint16_t *) _ref_line; | |
| 48 | |||
| 49 |
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1650000 | for (j = 0; j < outw; j++) { |
| 50 | 1500000 | unsigned error = main_line[j] - ref_line[j]; | |
| 51 | |||
| 52 | 1500000 | m2 += error * error; | |
| 53 | } | ||
| 54 | |||
| 55 | 150000 | return m2; | |
| 56 | } | ||
| 57 | |||
| 58 | 8 | void ff_psnr_init(PSNRDSPContext *dsp, int bpp) | |
| 59 | { | ||
| 60 |
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8 | dsp->sse_line = bpp > 8 ? sse_line_16bit : sse_line_8bit; |
| 61 | #if ARCH_X86 | ||
| 62 | 8 | ff_psnr_init_x86(dsp, bpp); | |
| 63 | #endif | ||
| 64 | 8 | } | |
| 65 |