h264chroma_init_aarch64.c 2.41 KB
Newer Older
1 2 3 4
/*
 * ARM NEON optimised H.264 chroma functions
 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8 9 10 11
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * 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 14 15 16 17
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * 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 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <stdint.h>

#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/aarch64/cpu.h"
#include "libavcodec/h264chroma.h"

#include "config.h"

void ff_put_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride,
                                 int h, int x, int y);
void ff_put_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride,
                                 int h, int x, int y);
void ff_put_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, int stride,
                                 int h, int x, int y);

void ff_avg_h264_chroma_mc8_neon(uint8_t *dst, uint8_t *src, int stride,
                                 int h, int x, int y);
void ff_avg_h264_chroma_mc4_neon(uint8_t *dst, uint8_t *src, int stride,
                                 int h, int x, int y);
void ff_avg_h264_chroma_mc2_neon(uint8_t *dst, uint8_t *src, int stride,
                                 int h, int x, int y);

av_cold void ff_h264chroma_init_aarch64(H264ChromaContext *c, int bit_depth)
{
    const int high_bit_depth = bit_depth > 8;
    int cpu_flags = av_get_cpu_flags();

    if (have_neon(cpu_flags) && !high_bit_depth) {
        c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_neon;
        c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_neon;
        c->put_h264_chroma_pixels_tab[2] = ff_put_h264_chroma_mc2_neon;

        c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_neon;
        c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_neon;
        c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_neon;
    }
}