FFmpeg
libavcodec
dctref.h
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/*
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* reference discrete cosine transform (double precision)
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* Copyright (C) 2009 Dylan Yudaken
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_DCTREF_H
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#define AVCODEC_DCTREF_H
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void
ff_ref_fdct
(
short
*
block
);
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void
ff_ref_idct
(
short
*
block
);
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void
ff_ref_dct_init
(
void
);
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#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
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