2 * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of MPlayer.
6 * MPlayer is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * MPlayer is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License along
17 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
29 #include "libavutil/avutil.h"
30 #include "img_format.h"
33 #include "libswscale/swscale.h"
36 //===========================================================================//
38 typedef struct FilterParam
{
43 struct SwsContext
*filterContext
;
52 /***************************************************************************/
54 static int allocStuff(FilterParam
*f
, int width
, int height
){
58 vec
= sws_getGaussianVec(f
->radius
, f
->quality
);
59 sws_scaleVec(vec
, f
->strength
);
60 vec
->coeff
[vec
->length
/2]+= 1.0 - f
->strength
;
61 swsF
.lumH
= swsF
.lumV
= vec
;
62 swsF
.chrH
= swsF
.chrV
= NULL
;
63 f
->filterContext
= sws_getContext(
64 width
, height
, PIX_FMT_GRAY8
, width
, height
, PIX_FMT_GRAY8
, SWS_BICUBIC
| get_sws_cpuflags(), &swsF
, NULL
, NULL
);
71 static int config(struct vf_instance
*vf
,
72 int width
, int height
, int d_width
, int d_height
,
73 unsigned int flags
, unsigned int outfmt
){
77 allocStuff(&vf
->priv
->luma
, width
, height
);
79 mp_get_chroma_shift(outfmt
, &sw
, &sh
, NULL
);
80 allocStuff(&vf
->priv
->chroma
, width
>>sw
, height
>>sh
);
82 return vf_next_config(vf
,width
,height
,d_width
,d_height
,flags
,outfmt
);
85 static void freeBuffers(FilterParam
*f
){
86 if(f
->filterContext
) sws_freeContext(f
->filterContext
);
87 f
->filterContext
=NULL
;
90 static void uninit(struct vf_instance
*vf
){
93 freeBuffers(&vf
->priv
->luma
);
94 freeBuffers(&vf
->priv
->chroma
);
100 static inline void blur(uint8_t *dst
, uint8_t *src
, int w
, int h
, int dstStride
, int srcStride
, FilterParam
*fp
){
103 const uint8_t* const srcArray
[MP_MAX_PLANES
] = {src
};
104 uint8_t *dstArray
[MP_MAX_PLANES
]= {dst
};
105 int srcStrideArray
[MP_MAX_PLANES
]= {srcStride
};
106 int dstStrideArray
[MP_MAX_PLANES
]= {dstStride
};
108 sws_scale(f
.filterContext
, srcArray
, srcStrideArray
, 0, h
, dstArray
, dstStrideArray
);
113 const int orig
= src
[x
+ y
*srcStride
];
114 const int filtered
= dst
[x
+ y
*dstStride
];
115 const int diff
= orig
- filtered
;
118 if(diff
> 2*f
.threshold
){
119 dst
[x
+ y
*dstStride
]= orig
;
120 }else if(diff
> f
.threshold
){
121 dst
[x
+ y
*dstStride
]= filtered
+ diff
- f
.threshold
;
124 if(-diff
> 2*f
.threshold
){
125 dst
[x
+ y
*dstStride
]= orig
;
126 }else if(-diff
> f
.threshold
){
127 dst
[x
+ y
*dstStride
]= filtered
+ diff
+ f
.threshold
;
132 }else if(f
.threshold
< 0){
135 const int orig
= src
[x
+ y
*srcStride
];
136 const int filtered
= dst
[x
+ y
*dstStride
];
137 const int diff
= orig
- filtered
;
140 if(diff
> -2*f
.threshold
){
141 }else if(diff
> -f
.threshold
){
142 dst
[x
+ y
*dstStride
]= orig
- diff
- f
.threshold
;
144 dst
[x
+ y
*dstStride
]= orig
;
146 if(diff
< 2*f
.threshold
){
147 }else if(diff
< f
.threshold
){
148 dst
[x
+ y
*dstStride
]= orig
- diff
+ f
.threshold
;
150 dst
[x
+ y
*dstStride
]= orig
;
157 static int put_image(struct vf_instance
*vf
, mp_image_t
*mpi
, double pts
){
158 int cw
= mpi
->w
>> mpi
->chroma_x_shift
;
159 int ch
= mpi
->h
>> mpi
->chroma_y_shift
;
160 bool threshold
= vf
->priv
->luma
.threshold
|| vf
->priv
->chroma
.threshold
;
162 mp_image_t
*dmpi
=vf_get_image(vf
->next
,mpi
->imgfmt
,
163 MP_IMGTYPE_TEMP
, MP_IMGFLAG_ACCEPT_STRIDE
|
164 (threshold
? MP_IMGFLAG_READABLE
: 0),
167 assert(mpi
->flags
&MP_IMGFLAG_PLANAR
);
169 blur(dmpi
->planes
[0], mpi
->planes
[0], mpi
->w
,mpi
->h
, dmpi
->stride
[0], mpi
->stride
[0], &vf
->priv
->luma
);
170 blur(dmpi
->planes
[1], mpi
->planes
[1], cw
, ch
, dmpi
->stride
[1], mpi
->stride
[1], &vf
->priv
->chroma
);
171 blur(dmpi
->planes
[2], mpi
->planes
[2], cw
, ch
, dmpi
->stride
[2], mpi
->stride
[2], &vf
->priv
->chroma
);
173 return vf_next_put_image(vf
,dmpi
, pts
);
176 //===========================================================================//
178 static int query_format(struct vf_instance
*vf
, unsigned int fmt
){
188 return vf_next_query_format(vf
, fmt
);
193 static int vf_open(vf_instance_t
*vf
, char *args
){
197 vf
->put_image
=put_image
;
198 // vf->get_image=get_image;
199 vf
->query_format
=query_format
;
201 vf
->priv
=malloc(sizeof(struct vf_priv_s
));
202 memset(vf
->priv
, 0, sizeof(struct vf_priv_s
));
204 if(args
==NULL
) return 0;
206 e
=sscanf(args
, "%f:%f:%d:%f:%f:%d",
207 &vf
->priv
->luma
.radius
,
208 &vf
->priv
->luma
.strength
,
209 &vf
->priv
->luma
.threshold
,
210 &vf
->priv
->chroma
.radius
,
211 &vf
->priv
->chroma
.strength
,
212 &vf
->priv
->chroma
.threshold
215 vf
->priv
->luma
.quality
= vf
->priv
->chroma
.quality
= 3.0;
218 vf
->priv
->chroma
.radius
= vf
->priv
->luma
.radius
;
219 vf
->priv
->chroma
.strength
= vf
->priv
->luma
.strength
;
220 vf
->priv
->chroma
.threshold
= vf
->priv
->luma
.threshold
;
227 const vf_info_t vf_info_smartblur
= {
230 "Michael Niedermayer",
236 //===========================================================================//