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ffmpeg-4.2.2/libavcodec/arm/idctdsp_init_armv5te.c 1.49 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
   *
   * This file is part of FFmpeg.
   *
   * FFmpeg 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.
   *
   * FFmpeg 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 FFmpeg; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   */
  
  #include <stdint.h>
  
  #include "libavutil/attributes.h"
  #include "libavcodec/avcodec.h"
  #include "libavcodec/idctdsp.h"
  #include "idct.h"
  #include "idctdsp_arm.h"
  
  av_cold void ff_idctdsp_init_armv5te(IDCTDSPContext *c, AVCodecContext *avctx,
                                       unsigned high_bit_depth)
  {
      if (!avctx->lowres && !high_bit_depth &&
          (avctx->idct_algo == FF_IDCT_AUTO ||
           avctx->idct_algo == FF_IDCT_SIMPLEAUTO ||
           avctx->idct_algo == FF_IDCT_SIMPLEARMV5TE)) {
          c->idct_put  = ff_simple_idct_put_armv5te;
          c->idct_add  = ff_simple_idct_add_armv5te;
          c->idct      = ff_simple_idct_armv5te;
          c->perm_type = FF_IDCT_PERM_NONE;
      }
  }