simple_idct.h 2.06 KB
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/*
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 * Simple IDCT
 *
 * Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at>
 *
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 * This file is part of FFmpeg.
 *
 * 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
 * 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
 * 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
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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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/**
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 * @file
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 * simple idct header.
 */
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#ifndef AVCODEC_SIMPLE_IDCT_H
#define AVCODEC_SIMPLE_IDCT_H
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#include <stdint.h>

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void ff_simple_idct_put_8(uint8_t *dest, int line_size, int16_t *block);
void ff_simple_idct_add_8(uint8_t *dest, int line_size, int16_t *block);
void ff_simple_idct_8(int16_t *block);
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void ff_simple_idct_put_10(uint8_t *dest, int line_size, int16_t *block);
void ff_simple_idct_add_10(uint8_t *dest, int line_size, int16_t *block);
void ff_simple_idct_10(int16_t *block);
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/**
 * Special version of ff_simple_idct_10() which does dequantization
 * and scales by a factor of 2 more between the two IDCTs to account
 * for larger scale of input coefficients.
 */
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void ff_prores_idct(int16_t *block, const int16_t *qmat);
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void ff_simple_idct_mmx(int16_t *block);
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void ff_simple_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block);
void ff_simple_idct_put_mmx(uint8_t *dest, int line_size, int16_t *block);
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void ff_simple_idct248_put(uint8_t *dest, int line_size, int16_t *block);
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void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block);
void ff_simple_idct48_add(uint8_t *dest, int line_size, int16_t *block);
void ff_simple_idct44_add(uint8_t *dest, int line_size, int16_t *block);
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#endif /* AVCODEC_SIMPLE_IDCT_H */