FFmpeg
libavcodec
aarch64
synth_filter_init.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "
libavutil/aarch64/cpu.h
"
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#include "
libavutil/attributes.h
"
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#include "
libavutil/internal.h
"
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#include "
libavcodec/fft.h
"
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#include "
libavcodec/synth_filter.h
"
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#include "
asm-offsets.h
"
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#if HAVE_NEON || HAVE_VFP
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AV_CHECK_OFFSET
(
FFTContext
, imdct_half,
IMDCT_HALF
);
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#endif
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void
ff_synth_filter_float_neon
(
FFTContext
*imdct,
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float
*synth_buf_ptr,
int
*synth_buf_offset,
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float
synth_buf2[32],
const
float
window
[512],
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float
out
[32],
const
float
in[32],
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float
scale
);
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av_cold
void
ff_synth_filter_init_aarch64
(
SynthFilterContext
*
s
)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
have_neon
(
cpu_flags
))
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s
->synth_filter_float =
ff_synth_filter_float_neon
;
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}
out
FILE * out
Definition:
movenc.c:54
IMDCT_HALF
#define IMDCT_HALF
Definition:
asm-offsets.h:23
synth_filter.h
ff_synth_filter_init_aarch64
av_cold void ff_synth_filter_init_aarch64(SynthFilterContext *s)
Definition:
synth_filter_init.c:41
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:101
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:52
window
static SDL_Window * window
Definition:
ffplay.c:365
SynthFilterContext
Definition:
synth_filter.h:27
scale
static av_always_inline float scale(float x, float s)
Definition:
vf_v360.c:1389
av_cold
#define av_cold
Definition:
attributes.h:90
s
#define s(width, name)
Definition:
cbs_vp9.c:256
ff_synth_filter_float_neon
void ff_synth_filter_float_neon(FFTContext *imdct, float *synth_buf_ptr, int *synth_buf_offset, float synth_buf2[32], const float window[512], float out[32], const float in[32], float scale)
have_neon
#define have_neon(flags)
Definition:
cpu.h:26
AV_CHECK_OFFSET
#define AV_CHECK_OFFSET(s, m, o)
Definition:
internal.h:92
attributes.h
FFTContext
Definition:
fft.h:75
internal.h
asm-offsets.h
fft.h
cpu.h
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