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/arm/cpu.h"
27 #include "libavcodec/h264chroma.h"
28
29 void ff_put_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
30 int h, int x, int y);
31 void ff_put_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
32 int h, int x, int y);
33 void ff_put_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
34 int h, int x, int y);
35
36 void ff_avg_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
37 int h, int x, int y);
38 void ff_avg_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
39 int h, int x, int y);
40 void ff_avg_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
41 int h, int x, int y);
42
ff_h264chroma_init_arm(H264ChromaContext * c,int bit_depth)43 av_cold void ff_h264chroma_init_arm(H264ChromaContext *c, int bit_depth)
44 {
45 const int high_bit_depth = bit_depth > 8;
46 int cpu_flags = av_get_cpu_flags();
47
48 if (have_neon(cpu_flags) && !high_bit_depth) {
49 c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_neon;
50 c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_neon;
51 c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_neon;
52
53 c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_neon;
54 c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_neon;
55 c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_neon;
56 }
57 }
58