1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/*
Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include "config.h"
#include "mp_msg.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef USE_LIBAVUTIL_SO
#include <ffmpeg/avutil.h>
#else
#include "avutil.h"
#endif
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libswscale/swscale.h"
#include "vf_scale.h"
//===========================================================================//
typedef struct FilterParam{
float radius;
float strength;
int threshold;
float quality;
struct SwsContext *filterContext;
}FilterParam;
struct vf_priv_s {
FilterParam luma;
FilterParam chroma;
};
/***************************************************************************/
//FIXME stupid code duplication
static void getSubSampleFactors(int *h, int *v, int format){
switch(format){
case IMGFMT_YV12:
case IMGFMT_I420:
*h=1;
*v=1;
break;
case IMGFMT_YVU9:
*h=2;
*v=2;
break;
case IMGFMT_444P:
*h=0;
*v=0;
break;
case IMGFMT_422P:
*h=1;
*v=0;
break;
case IMGFMT_411P:
*h=2;
*v=0;
break;
}
}
static int allocStuff(FilterParam *f, int width, int height){
SwsVector *vec;
SwsFilter swsF;
vec = sws_getGaussianVec(f->radius, f->quality);
sws_scaleVec(vec, f->strength);
vec->coeff[vec->length/2]+= 1.0 - f->strength;
swsF.lumH= swsF.lumV= vec;
swsF.chrH= swsF.chrV= NULL;
f->filterContext= sws_getContext(
width, height, PIX_FMT_GRAY8, width, height, PIX_FMT_GRAY8, get_sws_cpuflags(), &swsF, NULL, NULL);
sws_freeVec(vec);
return 0;
}
static int config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
int sw, sh;
allocStuff(&vf->priv->luma, width, height);
getSubSampleFactors(&sw, &sh, outfmt);
allocStuff(&vf->priv->chroma, width>>sw, height>>sh);
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
static void freeBuffers(FilterParam *f){
if(f->filterContext) sws_freeContext(f->filterContext);
f->filterContext=NULL;
}
static void uninit(struct vf_instance_s* vf){
if(!vf->priv) return;
freeBuffers(&vf->priv->luma);
freeBuffers(&vf->priv->chroma);
free(vf->priv);
vf->priv=NULL;
}
static inline void blur(uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, FilterParam *fp){
int x, y;
FilterParam f= *fp;
uint8_t *srcArray[3]= {src, NULL, NULL};
uint8_t *dstArray[3]= {dst, NULL, NULL};
int srcStrideArray[3]= {srcStride, 0, 0};
int dstStrideArray[3]= {dstStride, 0, 0};
sws_scale(f.filterContext, srcArray, srcStrideArray, 0, h, dstArray, dstStrideArray);
if(f.threshold > 0){
for(y=0; y<h; y++){
for(x=0; x<w; x++){
const int orig= src[x + y*srcStride];
const int filtered= dst[x + y*dstStride];
const int diff= orig - filtered;
if(diff > 0){
if(diff > 2*f.threshold){
dst[x + y*dstStride]= orig;
}else if(diff > f.threshold){
dst[x + y*dstStride]= filtered + diff - f.threshold;
}
}else{
if(-diff > 2*f.threshold){
dst[x + y*dstStride]= orig;
}else if(-diff > f.threshold){
dst[x + y*dstStride]= filtered + diff + f.threshold;
}
}
}
}
}else if(f.threshold < 0){
for(y=0; y<h; y++){
for(x=0; x<w; x++){
const int orig= src[x + y*srcStride];
const int filtered= dst[x + y*dstStride];
const int diff= orig - filtered;
if(diff > 0){
if(diff > -2*f.threshold){
}else if(diff > -f.threshold){
dst[x + y*dstStride]= orig - diff - f.threshold;
}else
dst[x + y*dstStride]= orig;
}else{
if(diff < 2*f.threshold){
}else if(diff < f.threshold){
dst[x + y*dstStride]= orig - diff + f.threshold;
}else
dst[x + y*dstStride]= orig;
}
}
}
}
}
static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
int cw= mpi->w >> mpi->chroma_x_shift;
int ch= mpi->h >> mpi->chroma_y_shift;
FilterParam *f= &vf->priv;
mp_image_t *dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE|
(f->threshold) ? MP_IMGFLAG_READABLE : 0,
mpi->w,mpi->h);
assert(mpi->flags&MP_IMGFLAG_PLANAR);
blur(dmpi->planes[0], mpi->planes[0], mpi->w,mpi->h, dmpi->stride[0], mpi->stride[0], &vf->priv->luma);
blur(dmpi->planes[1], mpi->planes[1], cw , ch , dmpi->stride[1], mpi->stride[1], &vf->priv->chroma);
blur(dmpi->planes[2], mpi->planes[2], cw , ch , dmpi->stride[2], mpi->stride[2], &vf->priv->chroma);
return vf_next_put_image(vf,dmpi, pts);
}
//===========================================================================//
static int query_format(struct vf_instance_s* vf, unsigned int fmt){
switch(fmt)
{
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YVU9:
case IMGFMT_444P:
case IMGFMT_422P:
case IMGFMT_411P:
return vf_next_query_format(vf, fmt);
}
return 0;
}
static int open(vf_instance_t *vf, char* args){
int e;
vf->config=config;
vf->put_image=put_image;
// vf->get_image=get_image;
vf->query_format=query_format;
vf->uninit=uninit;
vf->priv=malloc(sizeof(struct vf_priv_s));
memset(vf->priv, 0, sizeof(struct vf_priv_s));
if(args==NULL) return 0;
e=sscanf(args, "%f:%f:%d:%f:%f:%d",
&vf->priv->luma.radius,
&vf->priv->luma.strength,
&vf->priv->luma.threshold,
&vf->priv->chroma.radius,
&vf->priv->chroma.strength,
&vf->priv->chroma.threshold
);
vf->priv->luma.quality = vf->priv->chroma.quality= 3.0;
if(e==3){
vf->priv->chroma.radius= vf->priv->luma.radius;
vf->priv->chroma.strength= vf->priv->luma.strength;
vf->priv->chroma.threshold = vf->priv->luma.threshold;
}else if(e!=6)
return 0;
return 1;
}
const vf_info_t vf_info_smartblur = {
"smart blur",
"smartblur",
"Michael Niedermayer",
"",
open,
NULL
};
//===========================================================================//
|
