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libavcodec
aarch64
imdct15_init.c
Go to the documentation of this file.
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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 <stddef.h>
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#include "
libavutil/cpu.h
"
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#include "
libavutil/aarch64/cpu.h
"
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#include "
libavutil/internal.h
"
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#include "
libavcodec/imdct15.h
"
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#include "
asm-offsets.h
"
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AV_CHECK_OFFSET
(
IMDCT15Context
,
exptab
,
CELT_EXPTAB
);
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AV_CHECK_OFFSET
(
IMDCT15Context
, fft_n,
CELT_FFT_N
);
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AV_CHECK_OFFSET
(
IMDCT15Context
, len2,
CELT_LEN2
);
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AV_CHECK_OFFSET
(
IMDCT15Context
, len4,
CELT_LEN4
);
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AV_CHECK_OFFSET
(
IMDCT15Context
, tmp,
CELT_TMP
);
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AV_CHECK_OFFSET
(
IMDCT15Context
, twiddle_exptab,
CELT_TWIDDLE
);
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void
ff_celt_imdct_half_neon
(
IMDCT15Context
*
s
,
float
*dst,
const
float
*
src
,
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ptrdiff_t
stride
,
float
scale);
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void
ff_imdct15_init_aarch64
(
IMDCT15Context
*
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->
imdct_half
=
ff_celt_imdct_half_neon
;
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}
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}
s
const char * s
Definition:
avisynth_c.h:669
cpu.h
exptab
static struct @46 * exptab
CELT_TMP
#define CELT_TMP
Definition:
asm-offsets.h:27
ff_imdct15_init_aarch64
void ff_imdct15_init_aarch64(IMDCT15Context *s)
Definition:
imdct15_init.c:39
CELT_TWIDDLE
#define CELT_TWIDDLE
Definition:
asm-offsets.h:28
CELT_EXPTAB
#define CELT_EXPTAB
Definition:
asm-offsets.h:23
ff_celt_imdct_half_neon
void ff_celt_imdct_half_neon(IMDCT15Context *s, float *dst, const float *src, ptrdiff_t stride, float scale)
CELT_LEN4
#define CELT_LEN4
Definition:
asm-offsets.h:26
internal.h
common internal API header
have_neon
#define have_neon(flags)
Definition:
cpu.h:27
imdct15.h
AV_CHECK_OFFSET
AV_CHECK_OFFSET(IMDCT15Context, exptab, CELT_EXPTAB)
src
AVS_Value src
Definition:
avisynth_c.h:524
cpu.h
IMDCT15Context
Definition:
imdct15.h:26
IMDCT15Context::imdct_half
void(* imdct_half)(struct IMDCT15Context *s, float *dst, const float *src, ptrdiff_t src_stride, float scale)
Calculate the middle half of the iMDCT.
Definition:
imdct15.h:40
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:75
asm-offsets.h
stride
GLint GLenum GLboolean GLsizei stride
Definition:
opengl_enc.c:105
CELT_FFT_N
#define CELT_FFT_N
Definition:
asm-offsets.h:24
CELT_LEN2
#define CELT_LEN2
Definition:
asm-offsets.h:25
Generated on Sun May 24 2015 19:50:31 for FFmpeg by
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