FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
rv34dsp.h
Go to the documentation of this file.
1 /*
2  * RV30/40 decoder motion compensation functions
3  * Copyright (c) 2008 Konstantin Shishkov
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 /**
23  * @file
24  * RV30/40 decoder motion compensation functions
25  */
26 
27 #ifndef AVCODEC_RV34DSP_H
28 #define AVCODEC_RV34DSP_H
29 
30 #include "dsputil.h"
31 #include "h264chroma.h"
32 
33 typedef void (*rv40_weight_func)(uint8_t *dst/*align width (8 or 16)*/,
34  uint8_t *src1/*align width (8 or 16)*/,
35  uint8_t *src2/*align width (8 or 16)*/,
36  int w1, int w2, ptrdiff_t stride);
37 
38 typedef void (*rv34_inv_transform_func)(int16_t *block);
39 
40 typedef void (*rv34_idct_add_func)(uint8_t *dst, ptrdiff_t stride, int16_t *block);
41 typedef void (*rv34_idct_dc_add_func)(uint8_t *dst, ptrdiff_t stride,
42  int dc);
43 
45  int filter_p1, int filter_q1,
46  int alpha, int beta,
47  int lims, int lim_q1, int lim_p1);
48 
50  int alpha, int lims,
51  int dmode, int chroma);
52 
53 typedef int (*rv40_loop_filter_strength_func)(uint8_t *src, ptrdiff_t stride,
54  int beta, int beta2, int edge,
55  int *p1, int *q1);
56 
57 typedef struct RV34DSPContext {
62  /**
63  * Biweight functions, first dimension is transform size (16/8),
64  * second is whether the weight is prescaled by 1/512 to skip
65  * the intermediate shifting.
66  */
76 
80 
83 
87 
88 #endif /* AVCODEC_RV34DSP_H */