1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <stdint.h>
20
21 #include "libavutil/attributes.h"
22 #include "libavutil/cpu.h"
23 #include "libavutil/aarch64/cpu.h"
24 #include "libavcodec/avcodec.h"
25 #include "libavcodec/pixblockdsp.h"
26
27 void ff_get_pixels_neon(int16_t *block, const uint8_t *pixels,
28 ptrdiff_t stride);
29 void ff_diff_pixels_neon(int16_t *block, const uint8_t *s1,
30 const uint8_t *s2, ptrdiff_t stride);
31
ff_pixblockdsp_init_aarch64(PixblockDSPContext * c,AVCodecContext * avctx,unsigned high_bit_depth)32 av_cold void ff_pixblockdsp_init_aarch64(PixblockDSPContext *c,
33 AVCodecContext *avctx,
34 unsigned high_bit_depth)
35 {
36 int cpu_flags = av_get_cpu_flags();
37
38 if (have_neon(cpu_flags)) {
39 if (!high_bit_depth) {
40 c->get_pixels_unaligned =
41 c->get_pixels = ff_get_pixels_neon;
42 }
43 c->diff_pixels_unaligned =
44 c->diff_pixels = ff_diff_pixels_neon;
45 }
46 }
47