FFmpeg
mpegvideo_arm.c
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1 /*
2  * Copyright (c) 2002 Michael Niedermayer
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include "libavutil/attributes.h"
22 #include "libavutil/internal.h"
23 #include "libavutil/arm/cpu.h"
24 #include "libavcodec/avcodec.h"
25 #include "libavcodec/mpegvideo.h"
26 #include "mpegvideo_arm.h"
27 #include "asm-offsets.h"
28 
29 #if HAVE_NEON
34 AV_CHECK_OFFSET(MpegEncContext, inter_scantable.raster_end,
37 #endif
38 
40  int n, int qscale);
42  int n, int qscale);
43 
45 {
47 
50 
51  if (have_neon(cpu_flags)) {
52  s->dct_unquantize_h263_intra = ff_dct_unquantize_h263_intra_neon;
53  s->dct_unquantize_h263_inter = ff_dct_unquantize_h263_inter_neon;
54  }
55 }
ff_dct_unquantize_h263_intra_neon
void ff_dct_unquantize_h263_intra_neon(MpegEncContext *s, int16_t *block, int n, int qscale)
Y_DC_SCALE
#define Y_DC_SCALE
Definition: asm-offsets.h:25
ff_mpv_common_init_arm
av_cold void ff_mpv_common_init_arm(MpegEncContext *s)
Definition: mpegvideo_arm.c:44
mpegvideo.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:95
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
H263_AIC
#define H263_AIC
Definition: asm-offsets.h:29
INTER_SCANTAB_RASTER_END
#define INTER_SCANTAB_RASTER_END
Definition: asm-offsets.h:30
av_cold
#define av_cold
Definition: attributes.h:90
s
#define s(width, name)
Definition: cbs_vp9.c:257
BLOCK_LAST_INDEX
#define BLOCK_LAST_INDEX
Definition: asm-offsets.h:28
have_armv5te
#define have_armv5te(flags)
Definition: cpu.h:25
ff_mpv_common_init_armv5te
void ff_mpv_common_init_armv5te(MpegEncContext *s)
Definition: mpegvideo_armv5te.c:98
ff_dct_unquantize_h263_inter_neon
void ff_dct_unquantize_h263_inter_neon(MpegEncContext *s, int16_t *block, int n, int qscale)
cpu.h
have_neon
#define have_neon(flags)
Definition: cpu.h:26
AV_CHECK_OFFSET
#define AV_CHECK_OFFSET(s, m, o)
Definition: internal.h:97
C_DC_SCALE
#define C_DC_SCALE
Definition: asm-offsets.h:26
attributes.h
internal.h
avcodec.h
AC_PRED
#define AC_PRED
Definition: asm-offsets.h:27
asm-offsets.h
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
MpegEncContext
MpegEncContext.
Definition: mpegvideo.h:81
mpegvideo_arm.h