2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.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
23 #include "libavutil/aarch64/cpu.h"
24 #include "libavutil/attributes.h"
25 #include "libavutil/internal.h"
26 #include "libavcodec/fft.h"
27 #include "libavcodec/synth_filter.h"
29 #include "asm-offsets.h"
31 #if HAVE_NEON || HAVE_VFP
32 AV_CHECK_OFFSET(FFTContext, imdct_half, IMDCT_HALF);
35 void ff_synth_filter_float_neon(FFTContext *imdct,
36 float *synth_buf_ptr, int *synth_buf_offset,
37 float synth_buf2[32], const float window[512],
38 float out[32], const float in[32],
41 av_cold void ff_synth_filter_init_aarch64(SynthFilterContext *s)
43 int cpu_flags = av_get_cpu_flags();
45 if (have_neon(cpu_flags))
46 s->synth_filter_float = ff_synth_filter_float_neon;