2 * Copyright (c) 2015 Ronald S. Bultje <rsbultje@gmail.com>
4 * This file is part of FFmpeg.
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.
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.
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
21 #include "libavutil/x86/cpu.h"
23 #include "libavfilter/ssim.h"
25 void ff_ssim_4x4_line_ssse3(const uint8_t *buf, ptrdiff_t buf_stride,
26 const uint8_t *ref, ptrdiff_t ref_stride,
27 int (*sums)[4], int w);
28 float ff_ssim_end_line_sse4(const int (*sum0)[4], const int (*sum1)[4], int w);
30 void ff_ssim_init_x86(SSIMDSPContext *dsp)
32 int cpu_flags = av_get_cpu_flags();
34 if (ARCH_X86_64 && EXTERNAL_SSSE3(cpu_flags))
35 dsp->ssim_4x4_line = ff_ssim_4x4_line_ssse3;
36 if (EXTERNAL_SSE4(cpu_flags))
37 dsp->ssim_end_line = ff_ssim_end_line_sse4;