From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- media/ffvpx/libavcodec/aarch64/fft_init_aarch64.c | 52 +++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 media/ffvpx/libavcodec/aarch64/fft_init_aarch64.c (limited to 'media/ffvpx/libavcodec/aarch64/fft_init_aarch64.c') diff --git a/media/ffvpx/libavcodec/aarch64/fft_init_aarch64.c b/media/ffvpx/libavcodec/aarch64/fft_init_aarch64.c new file mode 100644 index 0000000000..77f5607960 --- /dev/null +++ b/media/ffvpx/libavcodec/aarch64/fft_init_aarch64.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2009 Mans Rullgard + * + * 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/aarch64/cpu.h" + +#include "libavcodec/fft.h" + +void ff_fft_permute_neon(FFTContext *s, FFTComplex *z); +void ff_fft_calc_neon(FFTContext *s, FFTComplex *z); + +void ff_imdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); +void ff_imdct_half_neon(FFTContext *s, FFTSample *output, const FFTSample *input); +void ff_mdct_calc_neon(FFTContext *s, FFTSample *output, const FFTSample *input); + +av_cold void ff_fft_init_aarch64(FFTContext *s) +{ + int cpu_flags = av_get_cpu_flags(); + + if (have_neon(cpu_flags)) { + if (s->nbits < 17) { + s->fft_permute = ff_fft_permute_neon; + s->fft_calc = ff_fft_calc_neon; + } +#if CONFIG_MDCT + s->imdct_calc = ff_imdct_calc_neon; + s->imdct_half = ff_imdct_half_neon; + s->mdct_calc = ff_mdct_calc_neon; + s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE; +#endif + } +} -- cgit v1.2.3