func: static av_cold void dsputil_init_sse2(DSPContext *c, AVCodecContext *avctx,
  
                                        int mm_flags)
  
  {
  
  #if HAVE_SSE2_INLINE
  
      const int high_bit_depth = avctx->bits_per_raw_sample > 8;
  
  
  
      if (!high_bit_depth && avctx->idct_algo == FF_IDCT_XVIDMMX) {
  
          c->idct_put              = ff_idct_xvid_sse2_put;
  
          c->idct_add              = ff_idct_xvid_sse2_add;
  
          c->idct                  = ff_idct_xvid_sse2;
  
          c->idct_permutation_type = FF_SSE2_IDCT_PERM;
  
      }
  
  #endif /* HAVE_SSE2_INLINE */
  
  
  
  #if HAVE_SSE2_EXTERNAL
  
      c->scalarproduct_int16          = ff_scalarproduct_int16_sse2;
  
      c->scalarproduct_and_madd_int16 = ff_scalarproduct_and_madd_int16_sse2;
  
      if (mm_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 (avctx->flags & CODEC_FLAG_BITEXACT) {
  
          c->apply_window_int16 = ff_apply_window_int16_sse2;
  
      } else if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
  
          c->apply_window_int16 = ff_apply_window_int16_round_sse2;
  
      }
  
      c->bswap_buf = ff_bswap32_buf_sse2;
  
  #endif /* HAVE_SSE2_EXTERNAL */
  
  }
  