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  • /*
     * This file is part of Libav.
     *
     * Libav 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.
     *
     * Libav 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 Libav; 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/cpu.h"
    #include "libavutil/x86/cpu.h"
    #include "libavcodec/audiodsp.h"
    #include "audiodsp.h"
    
    int32_t ff_scalarproduct_int16_mmxext(const int16_t *v1, const int16_t *v2,
                                          int order);
    int32_t ff_scalarproduct_int16_sse2(const int16_t *v1, const int16_t *v2,
                                        int order);
    
    void ff_vector_clip_int32_mmx(int32_t *dst, const int32_t *src,
                                  int32_t min, int32_t max, unsigned int len);
    void ff_vector_clip_int32_sse2(int32_t *dst, const int32_t *src,
                                   int32_t min, int32_t max, unsigned int len);
    void ff_vector_clip_int32_int_sse2(int32_t *dst, const int32_t *src,
                                       int32_t min, int32_t max, unsigned int len);
    void ff_vector_clip_int32_sse4(int32_t *dst, const int32_t *src,
                                   int32_t min, int32_t max, unsigned int len);
    
    av_cold void ff_audiodsp_init_x86(AudioDSPContext *c)
    {
        int cpu_flags = av_get_cpu_flags();
    
        if (EXTERNAL_MMX(cpu_flags))
            c->vector_clip_int32 = ff_vector_clip_int32_mmx;
    
        if (EXTERNAL_MMXEXT(cpu_flags))
            c->scalarproduct_int16 = ff_scalarproduct_int16_mmxext;
    
    
        if (EXTERNAL_SSE(cpu_flags))
    
            c->vector_clipf = ff_vector_clipf_sse;
    
        if (EXTERNAL_SSE2(cpu_flags)) {
            c->scalarproduct_int16 = ff_scalarproduct_int16_sse2;
            if (cpu_flags & AV_CPU_FLAG_ATOM)
                c->vector_clip_int32 = ff_vector_clip_int32_int_sse2;
            else
                c->vector_clip_int32 = ff_vector_clip_int32_sse2;
        }
    
        if (EXTERNAL_SSE4(cpu_flags))
            c->vector_clip_int32 = ff_vector_clip_int32_sse4;
    }