FFmpeg
4.0
libavcodec
arm
pixblockdsp_init_arm.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 <stdint.h>
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/arm/cpu.h
"
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#include "
libavcodec/avcodec.h
"
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#include "
libavcodec/pixblockdsp.h
"
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void
ff_get_pixels_armv6
(int16_t *
block
,
const
uint8_t
*
pixels
,
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ptrdiff_t
stride
);
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void
ff_diff_pixels_armv6
(int16_t *
block
,
const
uint8_t
*
s1
,
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const
uint8_t
*
s2
, ptrdiff_t
stride
);
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av_cold
void
ff_pixblockdsp_init_arm
(
PixblockDSPContext
*
c
,
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AVCodecContext
*avctx,
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unsigned
high_bit_depth)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
have_armv6
(cpu_flags)) {
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if
(!high_bit_depth)
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c->
get_pixels
=
ff_get_pixels_armv6
;
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c->
diff_pixels
=
ff_diff_pixels_armv6
;
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}
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}
pixblockdsp.h
have_armv6
#define have_armv6(flags)
Definition:
cpu.h:26
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:50
stride
int stride
Definition:
mace.c:144
attributes.h
Macro definitions for various function/variable attributes.
block
static int16_t block[64]
Definition:
dct.c:115
uint8_t
uint8_t
Definition:
audio_convert.c:194
av_cold
#define av_cold
Definition:
attributes.h:82
PixblockDSPContext::diff_pixels
void(* diff_pixels)(int16_t *av_restrict block, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride)
Definition:
pixblockdsp.h:32
s2
#define s2
Definition:
regdef.h:39
ff_get_pixels_armv6
void ff_get_pixels_armv6(int16_t *block, const uint8_t *pixels, ptrdiff_t stride)
ff_pixblockdsp_init_arm
av_cold void ff_pixblockdsp_init_arm(PixblockDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)
Definition:
pixblockdsp_init_arm.c:32
cpu.h
avcodec.h
Libavcodec external API header.
cpu.h
AVCodecContext
main external API structure.
Definition:
avcodec.h:1518
PixblockDSPContext
Definition:
pixblockdsp.h:28
s1
#define s1
Definition:
regdef.h:38
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:93
PixblockDSPContext::get_pixels
void(* get_pixels)(int16_t *av_restrict block, const uint8_t *pixels, ptrdiff_t stride)
Definition:
pixblockdsp.h:29
c
static double c[64]
Definition:
vsrc_mptestsrc.c:87
ff_diff_pixels_armv6
void ff_diff_pixels_armv6(int16_t *block, const uint8_t *s1, const uint8_t *s2, ptrdiff_t stride)
pixels
int pixels
Definition:
avisynth_c.h:429
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