Documents/api/dctref_8h_source.html

 /*
  * reference discrete cosine transform (double precision)
  * Copyright (C) 2009 Dylan Yudaken
  *
  * 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
  */

 #ifndef AVCODEC_DCTREF_H
 #define AVCODEC_DCTREF_H

 void ff_ref_fdct(short *block);
 void ff_ref_idct(short *block);
 void ff_ref_dct_init(void);

 #endif /* AVCODEC_DCTREF_H */
block
static int16_t block[64]
Definition: dct.c:115

ff_ref_idct
void ff_ref_idct(short *block)
Transform 8x8 block of data with a double precision inverse DCT   This is a reference implementation...
Definition: dctref.c:95

ff_ref_dct_init
void ff_ref_dct_init(void)
Initialize the double precision discrete cosine transform functions fdct & idct.
Definition: dctref.c:41

ff_ref_fdct
void ff_ref_fdct(short *block)
Transform 8x8 block of data with a double precision forward DCT   This is a reference implementation...
Definition: dctref.c:59