ffmpeg/libavcodec/aarch64/me_cmp_init_aarch64.c

/*
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * 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.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * 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
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <stdint.h>

#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/aarch64/cpu.h"
#include "libavcodec/mpegvideo.h"

int ff_pix_abs16_neon(MpegEncContext *s, uint8_t *blk1, uint8_t *blk2,
                      ptrdiff_t stride, int h);
int ff_pix_abs16_xy2_neon(MpegEncContext *s, uint8_t *blk1, uint8_t *blk2,
                      ptrdiff_t stride, int h);
int ff_pix_abs16_x2_neon(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
                      ptrdiff_t stride, int h);

av_cold void ff_me_cmp_init_aarch64(MECmpContext *c, AVCodecContext *avctx)
{
    int cpu_flags = av_get_cpu_flags();

    if (have_neon(cpu_flags)) {
        c->pix_abs[0][0] = ff_pix_abs16_neon;
        c->pix_abs[0][1] = ff_pix_abs16_x2_neon;
        c->pix_abs[0][3] = ff_pix_abs16_xy2_neon;

        c->sad[0] = ff_pix_abs16_neon;
    }
}