FFmpeg
rdft_init_arm.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include "libavutil/attributes.h"
20 #include "libavutil/cpu.h"
21 #include "libavutil/arm/cpu.h"
22 
23 #include "libavcodec/rdft.h"
24 
25 void ff_rdft_calc_neon(struct RDFTContext *s, FFTSample *z);
26 
28 {
30 
31  if (have_neon(cpu_flags))
32  s->rdft_calc = ff_rdft_calc_neon;
33 }
rdft.h
ff_rdft_init_arm
av_cold void ff_rdft_init_arm(RDFTContext *s)
Definition: rdft_init_arm.c:27
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:96
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
ff_rdft_calc_neon
void ff_rdft_calc_neon(struct RDFTContext *s, FFTSample *z)
av_cold
#define av_cold
Definition: attributes.h:90
s
#define s(width, name)
Definition: cbs_vp9.c:257
cpu.h
FFTSample
float FFTSample
Definition: avfft.h:35
cpu.h
have_neon
#define have_neon(flags)
Definition: cpu.h:26
attributes.h
RDFTContext
Definition: rdft.h:28