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unsharp.h
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1 /*
2  * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
3  * Copyright (C) 2013 Lenny Wang
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 AVFILTER_UNSHARP_H
23 #define AVFILTER_UNSHARP_H
24 
25 #include "config.h"
26 #include "avfilter.h"
27 #if CONFIG_OPENCL
28 #include "libavutil/opencl.h"
29 #endif
30 
31 #define MIN_MATRIX_SIZE 3
32 #define MAX_MATRIX_SIZE 63
33 
34 #if CONFIG_OPENCL
35 
36 typedef struct {
37  cl_command_queue command_queue;
38  cl_program program;
39  cl_kernel kernel_default;
40  cl_kernel kernel_luma;
41  cl_kernel kernel_chroma;
42  cl_mem cl_luma_mask;
43  cl_mem cl_chroma_mask;
44  cl_mem cl_luma_mask_x;
45  cl_mem cl_chroma_mask_x;
46  cl_mem cl_luma_mask_y;
47  cl_mem cl_chroma_mask_y;
48  int in_plane_size[8];
49  int out_plane_size[8];
50  int plane_num;
51  cl_mem cl_inbuf;
52  size_t cl_inbuf_size;
53  cl_mem cl_outbuf;
54  size_t cl_outbuf_size;
55  int use_fast_kernels;
56 } UnsharpOpenclContext;
57 
58 #endif
59 
60 typedef struct UnsharpFilterParam {
61  int msize_x; ///< matrix width
62  int msize_y; ///< matrix height
63  int amount; ///< effect amount
64  int steps_x; ///< horizontal step count
65  int steps_y; ///< vertical step count
66  int scalebits; ///< bits to shift pixel
67  int32_t halfscale; ///< amount to add to pixel
68  uint32_t *sc[MAX_MATRIX_SIZE - 1]; ///< finite state machine storage
70 
71 typedef struct UnsharpContext {
72  const AVClass *class;
74  float lamount, camount;
75  UnsharpFilterParam luma; ///< luma parameters (width, height, amount)
76  UnsharpFilterParam chroma; ///< chroma parameters (width, height, amount)
77  int hsub, vsub;
78  int opencl;
79 #if CONFIG_OPENCL
80  UnsharpOpenclContext opencl_ctx;
81 #endif
84 
85 #endif /* AVFILTER_UNSHARP_H */