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  1. /*
  2.  * Copyright (c) 2011 Janne Grunau <janne-libav@jannau.net>
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #include <stdint.h>
  22.  
  23. #include "libavutil/attributes.h"
  24. #include "libavcodec/avcodec.h"
  25. #include "libavcodec/rv34dsp.h"
  26. #include "libavutil/arm/cpu.h"
  27.  
  28. void ff_rv34_inv_transform_noround_neon(int16_t *block);
  29.  
  30. void ff_rv34_inv_transform_noround_dc_neon(int16_t *block);
  31.  
  32. void ff_rv34_idct_add_neon(uint8_t *dst, ptrdiff_t stride, int16_t *block);
  33. void ff_rv34_idct_dc_add_neon(uint8_t *dst, ptrdiff_t stride, int dc);
  34.  
  35. av_cold void ff_rv34dsp_init_arm(RV34DSPContext *c)
  36. {
  37.     int cpu_flags = av_get_cpu_flags();
  38.  
  39.     if (have_neon(cpu_flags)) {
  40.         c->rv34_inv_transform    = ff_rv34_inv_transform_noround_neon;
  41.         c->rv34_inv_transform_dc = ff_rv34_inv_transform_noround_dc_neon;
  42.  
  43.         c->rv34_idct_add    = ff_rv34_idct_add_neon;
  44.         c->rv34_idct_dc_add = ff_rv34_idct_dc_add_neon;
  45.     }
  46. }
  47.