ffmpeg/libavcodec/arm/idctdsp_init_armv6.c

   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 & 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 }