FFmpeg
libavcodec
dctref.h
Go to the documentation of this file.
1
/*
2
* reference discrete cosine transform (double precision)
3
* Copyright (C) 2009 Dylan Yudaken
4
*
5
* This file is part of FFmpeg.
6
*
7
* FFmpeg is free software; you can redistribute it and/or
8
* modify it under the terms of the GNU Lesser General Public
9
* License as published by the Free Software Foundation; either
10
* version 2.1 of the License, or (at your option) any later version.
11
*
12
* FFmpeg is distributed in the hope that it will be useful,
13
* but WITHOUT ANY WARRANTY; without even the implied warranty of
14
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15
* Lesser General Public License for more details.
16
*
17
* You should have received a copy of the GNU Lesser General Public
18
* License along with FFmpeg; if not, write to the Free Software
19
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
*/
21
22
#ifndef AVCODEC_DCTREF_H
23
#define AVCODEC_DCTREF_H
24
25
void
ff_ref_fdct
(
short
*
block
);
26
void
ff_ref_idct
(
short
*
block
);
27
void
ff_ref_dct_init
(
void
);
28
29
#endif
/* AVCODEC_DCTREF_H */
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
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
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition:
filter_design.txt:207
Generated on Fri Oct 4 2024 19:21:30 for FFmpeg by
1.8.17