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  1. /*
  2.  * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
  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/idctdsp.h"
  26. #include "idct.h"
  27. #include "idctdsp_arm.h"
  28.  
  29. void ff_add_pixels_clamped_armv6(const int16_t *block, uint8_t *pixels,
  30.                                  ptrdiff_t line_size);
  31.  
  32. av_cold void ff_idctdsp_init_armv6(IDCTDSPContext *c, AVCodecContext *avctx,
  33.                                    unsigned high_bit_depth)
  34. {
  35.     if (!avctx->lowres && !high_bit_depth) {
  36.         if ((avctx->idct_algo == FF_IDCT_AUTO && !(avctx->flags & AV_CODEC_FLAG_BITEXACT)) ||
  37.             avctx->idct_algo == FF_IDCT_SIMPLEARMV6) {
  38.             c->idct_put  = ff_simple_idct_put_armv6;
  39.             c->idct_add  = ff_simple_idct_add_armv6;
  40.             c->idct      = ff_simple_idct_armv6;
  41.             c->perm_type = FF_IDCT_PERM_LIBMPEG2;
  42.         }
  43.     }
  44.     c->add_pixels_clamped = ff_add_pixels_clamped_armv6;
  45. }
  46.