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libavcodec
arm
mpegvideo_arm.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2002 Michael Niedermayer
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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 "
libavutil/arm/cpu.h
"
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#include "libavcodec/avcodec.h"
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#include "
libavcodec/mpegvideo.h
"
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#include "
mpegvideo_arm.h
"
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#include "
asm-offsets.h
"
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#if HAVE_NEON
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CHK_OFFS
(
MpegEncContext
, y_dc_scale,
Y_DC_SCALE
);
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CHK_OFFS
(
MpegEncContext
, c_dc_scale,
C_DC_SCALE
);
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CHK_OFFS
(
MpegEncContext
, ac_pred,
AC_PRED
);
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CHK_OFFS
(
MpegEncContext
, block_last_index,
BLOCK_LAST_INDEX
);
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CHK_OFFS
(
MpegEncContext
, inter_scantable.raster_end,
INTER_SCANTAB_RASTER_END
);
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CHK_OFFS
(
MpegEncContext
, h263_aic,
H263_AIC
);
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#endif
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void
ff_dct_unquantize_h263_inter_neon
(
MpegEncContext
*
s
, int16_t *
block
,
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int
n
,
int
qscale);
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void
ff_dct_unquantize_h263_intra_neon
(
MpegEncContext
*
s
, int16_t *
block
,
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int
n
,
int
qscale);
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av_cold
void
ff_MPV_common_init_arm
(
MpegEncContext
*
s
)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
have_armv5te
(cpu_flags))
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ff_MPV_common_init_armv5te
(s);
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if
(
have_neon
(cpu_flags)) {
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s->
dct_unquantize_h263_intra
=
ff_dct_unquantize_h263_intra_neon
;
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s->
dct_unquantize_h263_inter
=
ff_dct_unquantize_h263_inter_neon
;
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}
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}
cpu.h
s
const char * s
Definition:
avisynth_c.h:668
ff_dct_unquantize_h263_inter_neon
void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, int16_t *block, int n, int qscale)
ff_dct_unquantize_h263_intra_neon
void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, int16_t *block, int n, int qscale)
mpegvideo.h
mpegvideo header.
av_cold
#define av_cold
Definition:
avcodec.h:653
CHK_OFFS
#define CHK_OFFS(s, m, o)
Definition:
asm-offsets.h:26
MpegEncContext::dct_unquantize_h263_intra
void(* dct_unquantize_h263_intra)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition:
mpegvideo.h:721
MpegEncContext::dct_unquantize_h263_inter
void(* dct_unquantize_h263_inter)(struct MpegEncContext *s, int16_t *block, int n, int qscale)
Definition:
mpegvideo.h:723
have_armv5te
#define have_armv5te(flags)
Definition:
cpu.h:26
BLOCK_LAST_INDEX
#define BLOCK_LAST_INDEX
Definition:
asm-offsets.h:35
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:52
INTER_SCANTAB_RASTER_END
#define INTER_SCANTAB_RASTER_END
Definition:
asm-offsets.h:37
AC_PRED
#define AC_PRED
Definition:
asm-offsets.h:34
n
int n
Definition:
avisynth_c.h:588
cpu_flags
static int cpu_flags
Definition:
dct-test.c:77
ff_MPV_common_init_armv5te
void ff_MPV_common_init_armv5te(MpegEncContext *s)
Definition:
mpegvideo_armv5te.c:98
Y_DC_SCALE
#define Y_DC_SCALE
Definition:
asm-offsets.h:32
have_neon
#define have_neon(flags)
Definition:
cpu.h:31
C_DC_SCALE
#define C_DC_SCALE
Definition:
asm-offsets.h:33
MpegEncContext
MpegEncContext.
Definition:
mpegvideo.h:245
mpegvideo_arm.h
H263_AIC
#define H263_AIC
Definition:
asm-offsets.h:36
asm-offsets.h
ff_MPV_common_init_arm
av_cold void ff_MPV_common_init_arm(MpegEncContext *s)
Definition:
mpegvideo_arm.c:41
block
static int16_t block[64]
Definition:
dct-test.c:198
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