2 * ARM NEON optimised H.264 chroma functions
3 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
5 * This file is part of FFmpeg.
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.
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.
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
24 #include "libavutil/attributes.h"
25 #include "libavutil/cpu.h"
26 #include "libavutil/aarch64/cpu.h"
27 #include "libavcodec/h264chroma.h"
31 void ff_put_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
33 void ff_put_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
35 void ff_put_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
38 void ff_avg_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
40 void ff_avg_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
42 void ff_avg_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
45 av_cold void ff_h264chroma_init_aarch64(H264ChromaContext *c, int bit_depth)
47 const int high_bit_depth = bit_depth > 8;
48 int cpu_flags = av_get_cpu_flags();
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;
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;