FFmpeg  4.4.6
h264chroma_init_aarch64.c
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1 /*
2  * ARM NEON optimised H.264 chroma functions
3  * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <stdint.h>
23 
24 #include "libavutil/attributes.h"
25 #include "libavutil/cpu.h"
26 #include "libavutil/aarch64/cpu.h"
27 #include "libavcodec/h264chroma.h"
28 
29 #include "config.h"
30 
32  int h, int x, int y);
34  int h, int x, int y);
36  int h, int x, int y);
37 
39  int h, int x, int y);
41  int h, int x, int y);
43  int h, int x, int y);
44 
46 {
47  const int high_bit_depth = bit_depth > 8;
49 
50  if (have_neon(cpu_flags) && !high_bit_depth) {
51  c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_neon;
52  c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_neon;
53  c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_neon;
54 
55  c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_neon;
56  c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_neon;
57  c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_neon;
58  }
59 }
#define have_neon(flags)
Definition: cpu.h:26
static void bit_depth(AudioStatsContext *s, uint64_t mask, uint64_t imask, AVRational *depth)
Definition: af_astats.c:254
Macro definitions for various function/variable attributes.
#define av_cold
Definition: attributes.h:88
uint8_t
static atomic_int cpu_flags
Definition: cpu.c:50
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:95
void ff_avg_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_put_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_avg_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_put_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_avg_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
void ff_put_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride, int h, int x, int y)
av_cold void ff_h264chroma_init_aarch64(H264ChromaContext *c, int bit_depth)
int stride
Definition: mace.c:144
#define src
Definition: vp8dsp.c:255
static double c[64]