FFmpeg
simple_idct.h
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1 /*
2  * Simple IDCT
3  *
4  * Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 /**
24  * @file
25  * simple idct header.
26  */
27 
28 #ifndef AVCODEC_SIMPLE_IDCT_H
29 #define AVCODEC_SIMPLE_IDCT_H
30 
31 #include <stddef.h>
32 #include <stdint.h>
33 
34 void ff_simple_idct_put_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
35 void ff_simple_idct_add_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
36 void ff_simple_idct_int16_8bit(int16_t *block);
37 
38 void ff_simple_idct_put_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
39 void ff_simple_idct_add_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
40 void ff_simple_idct_int16_10bit(int16_t *block);
41 
42 void ff_simple_idct_put_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
43 void ff_simple_idct_add_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
44 void ff_simple_idct_int32_10bit(int16_t *block);
45 
46 void ff_simple_idct_put_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
47 void ff_simple_idct_add_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
48 void ff_simple_idct_int16_12bit(int16_t *block);
49 
50 /**
51  * Special version of ff_simple_idct_int16_10bit() which does dequantization
52  * and scales by a factor of 2 more between the two IDCTs to account
53  * for larger scale of input coefficients.
54  */
55 void ff_prores_idct_10(int16_t *block, const int16_t *qmat);
56 void ff_prores_idct_12(int16_t *block, const int16_t *qmat);
57 
58 void ff_simple_idct248_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
59 
60 void ff_simple_idct84_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
61 void ff_simple_idct48_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
62 void ff_simple_idct44_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block);
63 
64 #endif /* AVCODEC_SIMPLE_IDCT_H */
void ff_simple_idct44_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition: simple_idct.c:224
void ff_simple_idct_int16_8bit(int16_t *block)
The exact code depends on how similar the blocks are and how related they are to the block
uint8_t
void ff_simple_idct_int16_12bit(int16_t *block)
void ff_simple_idct48_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition: simple_idct.c:209
void ff_simple_idct_int32_10bit(int16_t *block)
void ff_simple_idct_add_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct248_put(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition: simple_idct.c:106
void ff_simple_idct_put_int16_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct_add_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_prores_idct_10(int16_t *block, const int16_t *qmat)
Special version of ff_simple_idct_int16_10bit() which does dequantization and scales by a factor of 2...
Definition: simple_idct.c:239
void ff_simple_idct_add_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct_int16_10bit(int16_t *block)
void ff_prores_idct_12(int16_t *block, const int16_t *qmat)
Definition: simple_idct.c:255
void ff_simple_idct84_add(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
Definition: simple_idct.c:194
void ff_simple_idct_add_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct_put_int32_10bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct_put_int16_8bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)
void ff_simple_idct_put_int16_12bit(uint8_t *dest, ptrdiff_t line_size, int16_t *block)