From 43a97878ce14b72f0981164f87f2e35e14151312 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 11:22:09 +0200 Subject: Adding upstream version 110.0.1. Signed-off-by: Daniel Baumann --- media/ffvpx/libavcodec/x86/fft_init.c | 47 +++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 media/ffvpx/libavcodec/x86/fft_init.c (limited to 'media/ffvpx/libavcodec/x86/fft_init.c') diff --git a/media/ffvpx/libavcodec/x86/fft_init.c b/media/ffvpx/libavcodec/x86/fft_init.c new file mode 100644 index 0000000000..df79d57dc7 --- /dev/null +++ b/media/ffvpx/libavcodec/x86/fft_init.c @@ -0,0 +1,47 @@ +/* + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#include "libavutil/attributes.h" +#include "libavutil/cpu.h" +#include "libavutil/x86/cpu.h" + +#include "fft.h" + +av_cold void ff_fft_init_x86(FFTContext *s) +{ + int cpu_flags = av_get_cpu_flags(); + + if (s->nbits > 16) + return; + + if (EXTERNAL_SSE(cpu_flags)) { + s->imdct_calc = ff_imdct_calc_sse; + s->imdct_half = ff_imdct_half_sse; + s->fft_permute = ff_fft_permute_sse; + s->fft_calc = ff_fft_calc_sse; + s->fft_permutation = FF_FFT_PERM_SWAP_LSBS; + } + + if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) { + s->imdct_half = ff_imdct_half_avx; + s->fft_calc = ff_fft_calc_avx; + s->fft_permutation = FF_FFT_PERM_AVX; + } +} -- cgit v1.2.3