h264chroma_init_aarch64.c 2.44 KB
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/*
 * ARM NEON optimised H.264 chroma functions
 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
 *
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * 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.
 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * 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
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 * License along with FFmpeg; if not, write to the Free Software
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 * 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"

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

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