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Linshizhi
ffmpeg.wasm-core
Commits
841df7bf
Commit
841df7bf
authored
Jun 03, 2013
by
Stefano Sabatini
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lavfi: port sab filter from libmpcodecs
parent
08041711
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7 changed files
with
380 additions
and
2 deletions
+380
-2
LICENSE
LICENSE
+1
-0
configure
configure
+1
-0
filters.texi
doc/filters.texi
+36
-0
Makefile
libavfilter/Makefile
+2
-0
allfilters.c
libavfilter/allfilters.c
+1
-0
version.h
libavfilter/version.h
+2
-2
vf_sab.c
libavfilter/vf_sab.c
+337
-0
No files found.
LICENSE
View file @
841df7bf
...
@@ -40,6 +40,7 @@ Specifically, the GPL parts of FFmpeg are
...
@@ -40,6 +40,7 @@ Specifically, the GPL parts of FFmpeg are
- vf_noise.c
- vf_noise.c
- vf_owdenoise.c
- vf_owdenoise.c
- vf_pp.c
- vf_pp.c
- vf_sab.c
- vf_smartblur.c
- vf_smartblur.c
- vf_stereo3d.c
- vf_stereo3d.c
- vf_super2xsai.c
- vf_super2xsai.c
...
...
configure
View file @
841df7bf
...
@@ -2168,6 +2168,7 @@ owdenoise_filter_deps="gpl"
...
@@ -2168,6 +2168,7 @@ owdenoise_filter_deps="gpl"
pan_filter_deps
=
"swresample"
pan_filter_deps
=
"swresample"
pp_filter_deps
=
"gpl postproc"
pp_filter_deps
=
"gpl postproc"
removelogo_filter_deps
=
"avcodec avformat swscale"
removelogo_filter_deps
=
"avcodec avformat swscale"
sab_filter_deps
=
"gpl swscale"
scale_filter_deps
=
"swscale"
scale_filter_deps
=
"swscale"
smartblur_filter_deps
=
"gpl swscale"
smartblur_filter_deps
=
"gpl swscale"
showspectrum_filter_deps
=
"avcodec rdft"
showspectrum_filter_deps
=
"avcodec rdft"
...
...
doc/filters.texi
View file @
841df7bf
...
@@ -5772,6 +5772,42 @@ much, but it will increase the amount of blurring needed to cover over
...
@@ -5772,6 +5772,42 @@ much, but it will increase the amount of blurring needed to cover over
the image and will destroy more information than necessary, and extra
the image and will destroy more information than necessary, and extra
pixels will slow things down on a large logo.
pixels will slow things down on a large logo.
@section sab
Apply Shape Adaptive Blur.
The filter accepts the following options:
@table @option
@item luma_radius, lr
Set luma blur filter strength, must be a value in range 0.1-4.0, default
value is 1.0. A greater value will result in a more blurred image, and
in slower processing.
@item luma_pre_filter_radius, lpfr
Set luma pre-filter radius, must be a value in the 0.1-2.0 range, default
value is 1.0.
@item luma_strength, ls
Set luma maximum difference between pixels to still be considered, must
be a value in the 0.1-100.0 range, default value is 1.0.
@item chroma_radius, cr
Set chroma blur filter strength, must be a value in range 0.1-4.0. A
greater value will result in a more blurred image, and in slower
processing.
@item chroma_pre_filter_radius, cpfr
Set chroma pre-filter radius, must be a value in the 0.1-2.0 range.
@item chroma_strength, cs
Set chroma maximum difference between pixels to still be considered,
must be a value in the 0.1-100.0 range.
@end table
Each chroma option value, if not explicitly specified, is set to the
corresponding luma option value.
@section scale
@section scale
Scale (resize) the input video, using the libswscale library.
Scale (resize) the input video, using the libswscale library.
...
...
libavfilter/Makefile
View file @
841df7bf
...
@@ -16,6 +16,7 @@ FFLIBS-$(CONFIG_PAN_FILTER) += swresample
...
@@ -16,6 +16,7 @@ FFLIBS-$(CONFIG_PAN_FILTER) += swresample
FFLIBS-$(CONFIG_PP_FILTER)
+=
postproc
FFLIBS-$(CONFIG_PP_FILTER)
+=
postproc
FFLIBS-$(CONFIG_REMOVELOGO_FILTER)
+=
avformat
avcodec
swscale
FFLIBS-$(CONFIG_REMOVELOGO_FILTER)
+=
avformat
avcodec
swscale
FFLIBS-$(CONFIG_RESAMPLE_FILTER)
+=
avresample
FFLIBS-$(CONFIG_RESAMPLE_FILTER)
+=
avresample
FFLIBS-$(CONFIG_SAB_FILTER)
+=
swscale
FFLIBS-$(CONFIG_SCALE_FILTER)
+=
swscale
FFLIBS-$(CONFIG_SCALE_FILTER)
+=
swscale
FFLIBS-$(CONFIG_SHOWSPECTRUM_FILTER)
+=
avcodec
FFLIBS-$(CONFIG_SHOWSPECTRUM_FILTER)
+=
avcodec
FFLIBS-$(CONFIG_SMARTBLUR_FILTER)
+=
swscale
FFLIBS-$(CONFIG_SMARTBLUR_FILTER)
+=
swscale
...
@@ -168,6 +169,7 @@ OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o
...
@@ -168,6 +169,7 @@ OBJS-$(CONFIG_PIXDESCTEST_FILTER) += vf_pixdesctest.o
OBJS-$(CONFIG_PP_FILTER)
+=
vf_pp.o
OBJS-$(CONFIG_PP_FILTER)
+=
vf_pp.o
OBJS-$(CONFIG_REMOVELOGO_FILTER)
+=
bbox.o
lswsutils.o
lavfutils.o
vf_removelogo.o
OBJS-$(CONFIG_REMOVELOGO_FILTER)
+=
bbox.o
lswsutils.o
lavfutils.o
vf_removelogo.o
OBJS-$(CONFIG_SEPARATEFIELDS_FILTER)
+=
vf_separatefields.o
OBJS-$(CONFIG_SEPARATEFIELDS_FILTER)
+=
vf_separatefields.o
OBJS-$(CONFIG_SAB_FILTER)
+=
vf_sab.o
OBJS-$(CONFIG_SCALE_FILTER)
+=
vf_scale.o
OBJS-$(CONFIG_SCALE_FILTER)
+=
vf_scale.o
OBJS-$(CONFIG_SELECT_FILTER)
+=
f_select.o
OBJS-$(CONFIG_SELECT_FILTER)
+=
f_select.o
OBJS-$(CONFIG_SENDCMD_FILTER)
+=
f_sendcmd.o
OBJS-$(CONFIG_SENDCMD_FILTER)
+=
f_sendcmd.o
...
...
libavfilter/allfilters.c
View file @
841df7bf
...
@@ -163,6 +163,7 @@ void avfilter_register_all(void)
...
@@ -163,6 +163,7 @@ void avfilter_register_all(void)
REGISTER_FILTER
(
PIXDESCTEST
,
pixdesctest
,
vf
);
REGISTER_FILTER
(
PIXDESCTEST
,
pixdesctest
,
vf
);
REGISTER_FILTER
(
PP
,
pp
,
vf
);
REGISTER_FILTER
(
PP
,
pp
,
vf
);
REGISTER_FILTER
(
REMOVELOGO
,
removelogo
,
vf
);
REGISTER_FILTER
(
REMOVELOGO
,
removelogo
,
vf
);
REGISTER_FILTER
(
SAB
,
sab
,
vf
);
REGISTER_FILTER
(
SCALE
,
scale
,
vf
);
REGISTER_FILTER
(
SCALE
,
scale
,
vf
);
REGISTER_FILTER
(
SELECT
,
select
,
vf
);
REGISTER_FILTER
(
SELECT
,
select
,
vf
);
REGISTER_FILTER
(
SENDCMD
,
sendcmd
,
vf
);
REGISTER_FILTER
(
SENDCMD
,
sendcmd
,
vf
);
...
...
libavfilter/version.h
View file @
841df7bf
...
@@ -30,8 +30,8 @@
...
@@ -30,8 +30,8 @@
#include "libavutil/avutil.h"
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 7
4
#define LIBAVFILTER_VERSION_MINOR 7
5
#define LIBAVFILTER_VERSION_MICRO 10
1
#define LIBAVFILTER_VERSION_MICRO 10
0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \
LIBAVFILTER_VERSION_MINOR, \
...
...
libavfilter/vf_sab.c
0 → 100644
View file @
841df7bf
/*
* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* @file
* Shape Adaptive Blur filter, ported from MPlayer libmpcodecs/vf_sab.c
*/
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libswscale/swscale.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
typedef
struct
{
float
radius
;
float
pre_filter_radius
;
float
strength
;
float
quality
;
struct
SwsContext
*
pre_filter_context
;
uint8_t
*
pre_filter_buf
;
int
pre_filter_linesize
;
int
dist_width
;
int
dist_linesize
;
int
*
dist_coeff
;
#define COLOR_DIFF_COEFF_SIZE 512
int
color_diff_coeff
[
COLOR_DIFF_COEFF_SIZE
];
}
FilterParam
;
typedef
struct
{
const
AVClass
*
class
;
FilterParam
luma
;
FilterParam
chroma
;
int
hsub
;
int
vsub
;
unsigned
int
sws_flags
;
}
SabContext
;
static
int
query_formats
(
AVFilterContext
*
ctx
)
{
static
const
enum
AVPixelFormat
pix_fmts
[]
=
{
AV_PIX_FMT_YUV420P
,
AV_PIX_FMT_YUV410P
,
AV_PIX_FMT_YUV444P
,
AV_PIX_FMT_YUV422P
,
AV_PIX_FMT_YUV411P
,
AV_PIX_FMT_NONE
};
ff_set_common_formats
(
ctx
,
ff_make_format_list
(
pix_fmts
));
return
0
;
}
#define RADIUS_MIN 0.1
#define RADIUS_MAX 4.0
#define PRE_FILTER_RADIUS_MIN 0.1
#define PRE_FILTER_RADIUS_MAX 2.0
#define STRENGTH_MIN 0.1
#define STRENGTH_MAX 100.0
#define OFFSET(x) offsetof(SabContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static
const
AVOption
sab_options
[]
=
{
{
"luma_radius"
,
"set luma radius"
,
OFFSET
(
luma
.
radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
1
.
0
},
RADIUS_MIN
,
RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"lr"
,
"set luma radius"
,
OFFSET
(
luma
.
radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
1
.
0
},
RADIUS_MIN
,
RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"luma_pre_filter_radius"
,
"set luma pre-filter radius"
,
OFFSET
(
luma
.
pre_filter_radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
1
.
0
},
PRE_FILTER_RADIUS_MIN
,
PRE_FILTER_RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"lpfr"
,
"set luma pre-filter radius"
,
OFFSET
(
luma
.
pre_filter_radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
1
.
0
},
PRE_FILTER_RADIUS_MIN
,
PRE_FILTER_RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"luma_strength"
,
"set luma strength"
,
OFFSET
(
luma
.
strength
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
1
.
0
},
STRENGTH_MIN
,
STRENGTH_MAX
,
.
flags
=
FLAGS
},
{
"ls"
,
"set luma strength"
,
OFFSET
(
luma
.
strength
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
1
.
0
},
STRENGTH_MIN
,
STRENGTH_MAX
,
.
flags
=
FLAGS
},
{
"chroma_radius"
,
"set chroma radius"
,
OFFSET
(
chroma
.
radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
RADIUS_MIN
-
1
},
RADIUS_MIN
-
1
,
RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"cr"
,
"set chroma radius"
,
OFFSET
(
chroma
.
radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
RADIUS_MIN
-
1
},
RADIUS_MIN
-
1
,
RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"chroma_pre_filter_radius"
,
"set chroma pre-filter radius"
,
OFFSET
(
chroma
.
pre_filter_radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
PRE_FILTER_RADIUS_MIN
-
1
},
PRE_FILTER_RADIUS_MIN
-
1
,
PRE_FILTER_RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"cpfr"
,
"set chroma pre-filter radius"
,
OFFSET
(
chroma
.
pre_filter_radius
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
PRE_FILTER_RADIUS_MIN
-
1
},
PRE_FILTER_RADIUS_MIN
-
1
,
PRE_FILTER_RADIUS_MAX
,
.
flags
=
FLAGS
},
{
"chroma_strength"
,
"set chroma strength"
,
OFFSET
(
chroma
.
strength
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
STRENGTH_MIN
-
1
},
STRENGTH_MIN
-
1
,
STRENGTH_MAX
,
.
flags
=
FLAGS
},
{
"cs"
,
"set chroma strength"
,
OFFSET
(
chroma
.
strength
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
STRENGTH_MIN
-
1
},
STRENGTH_MIN
-
1
,
STRENGTH_MAX
,
.
flags
=
FLAGS
},
{
NULL
}
};
AVFILTER_DEFINE_CLASS
(
sab
);
static
av_cold
int
init
(
AVFilterContext
*
ctx
)
{
SabContext
*
sab
=
ctx
->
priv
;
/* make chroma default to luma values, if not explicitly set */
if
(
sab
->
chroma
.
radius
<
RADIUS_MIN
)
sab
->
chroma
.
radius
=
sab
->
luma
.
radius
;
if
(
sab
->
chroma
.
pre_filter_radius
<
PRE_FILTER_RADIUS_MIN
)
sab
->
chroma
.
pre_filter_radius
=
sab
->
luma
.
pre_filter_radius
;
if
(
sab
->
chroma
.
strength
<
STRENGTH_MIN
)
sab
->
chroma
.
strength
=
sab
->
luma
.
strength
;
sab
->
luma
.
quality
=
sab
->
chroma
.
quality
=
3
.
0
;
sab
->
sws_flags
=
SWS_POINT
;
av_log
(
ctx
,
AV_LOG_VERBOSE
,
"luma_radius:%f luma_pre_filter_radius::%f luma_strength:%f "
"chroma_radius:%f chroma_pre_filter_radius:%f chroma_strength:%f
\n
"
,
sab
->
luma
.
radius
,
sab
->
luma
.
pre_filter_radius
,
sab
->
luma
.
strength
,
sab
->
chroma
.
radius
,
sab
->
chroma
.
pre_filter_radius
,
sab
->
chroma
.
strength
);
return
0
;
}
static
void
close_filter_param
(
FilterParam
*
f
)
{
if
(
f
->
pre_filter_context
)
{
sws_freeContext
(
f
->
pre_filter_context
);
f
->
pre_filter_context
=
NULL
;
}
av_freep
(
&
f
->
pre_filter_buf
);
av_freep
(
&
f
->
dist_coeff
);
}
static
av_cold
void
uninit
(
AVFilterContext
*
ctx
)
{
SabContext
*
sab
=
ctx
->
priv
;
close_filter_param
(
&
sab
->
luma
);
close_filter_param
(
&
sab
->
chroma
);
}
static
int
open_filter_param
(
FilterParam
*
f
,
int
width
,
int
height
,
unsigned
int
sws_flags
)
{
SwsVector
*
vec
;
SwsFilter
sws_f
;
int
i
,
x
,
y
;
int
linesize
=
FFALIGN
(
width
,
8
);
f
->
pre_filter_buf
=
av_malloc
(
linesize
*
height
);
if
(
!
f
->
pre_filter_buf
)
return
AVERROR
(
ENOMEM
);
f
->
pre_filter_linesize
=
linesize
;
vec
=
sws_getGaussianVec
(
f
->
pre_filter_radius
,
f
->
quality
);
sws_f
.
lumH
=
sws_f
.
lumV
=
vec
;
sws_f
.
chrH
=
sws_f
.
chrV
=
NULL
;
f
->
pre_filter_context
=
sws_getContext
(
width
,
height
,
AV_PIX_FMT_GRAY8
,
width
,
height
,
AV_PIX_FMT_GRAY8
,
sws_flags
,
&
sws_f
,
NULL
,
NULL
);
sws_freeVec
(
vec
);
vec
=
sws_getGaussianVec
(
f
->
strength
,
5
.
0
);
for
(
i
=
0
;
i
<
COLOR_DIFF_COEFF_SIZE
;
i
++
)
{
double
d
;
int
index
=
i
-
COLOR_DIFF_COEFF_SIZE
/
2
+
vec
->
length
/
2
;
if
(
index
<
0
||
index
>=
vec
->
length
)
d
=
0
.
0
;
else
d
=
vec
->
coeff
[
index
];
f
->
color_diff_coeff
[
i
]
=
(
int
)(
d
/
vec
->
coeff
[
vec
->
length
/
2
]
*
(
1
<<
12
)
+
0
.
5
);
}
sws_freeVec
(
vec
);
vec
=
sws_getGaussianVec
(
f
->
radius
,
f
->
quality
);
f
->
dist_width
=
vec
->
length
;
f
->
dist_linesize
=
FFALIGN
(
vec
->
length
,
8
);
f
->
dist_coeff
=
av_malloc
(
f
->
dist_width
*
f
->
dist_linesize
*
sizeof
(
*
f
->
dist_coeff
));
if
(
!
f
->
dist_coeff
)
return
AVERROR
(
ENOMEM
);
for
(
y
=
0
;
y
<
vec
->
length
;
y
++
)
{
for
(
x
=
0
;
x
<
vec
->
length
;
x
++
)
{
double
d
=
vec
->
coeff
[
x
]
*
vec
->
coeff
[
y
];
f
->
dist_coeff
[
x
+
y
*
f
->
dist_linesize
]
=
(
int
)(
d
*
(
1
<<
10
)
+
0
.
5
);
}
}
sws_freeVec
(
vec
);
return
0
;
}
static
int
config_props
(
AVFilterLink
*
inlink
)
{
SabContext
*
sab
=
inlink
->
dst
->
priv
;
const
AVPixFmtDescriptor
*
desc
=
av_pix_fmt_desc_get
(
inlink
->
format
);
int
ret
;
sab
->
hsub
=
desc
->
log2_chroma_w
;
sab
->
vsub
=
desc
->
log2_chroma_h
;
close_filter_param
(
&
sab
->
luma
);
ret
=
open_filter_param
(
&
sab
->
luma
,
inlink
->
w
,
inlink
->
h
,
sab
->
sws_flags
);
if
(
ret
<
0
)
return
ret
;
close_filter_param
(
&
sab
->
chroma
);
ret
=
open_filter_param
(
&
sab
->
chroma
,
FF_CEIL_RSHIFT
(
inlink
->
w
,
sab
->
hsub
),
FF_CEIL_RSHIFT
(
inlink
->
h
,
sab
->
vsub
),
sab
->
sws_flags
);
return
ret
;
}
#define NB_PLANES 4
static
void
blur
(
uint8_t
*
dst
,
const
int
dst_linesize
,
const
uint8_t
*
src
,
const
int
src_linesize
,
const
int
w
,
const
int
h
,
FilterParam
*
fp
)
{
int
x
,
y
;
FilterParam
f
=
*
fp
;
const
int
radius
=
f
.
dist_width
/
2
;
const
uint8_t
*
const
src2
[
NB_PLANES
]
=
{
src
};
int
src2_linesize
[
NB_PLANES
]
=
{
src_linesize
};
uint8_t
*
dst2
[
NB_PLANES
]
=
{
f
.
pre_filter_buf
};
int
dst2_linesize
[
NB_PLANES
]
=
{
f
.
pre_filter_linesize
};
sws_scale
(
f
.
pre_filter_context
,
src2
,
src2_linesize
,
0
,
h
,
dst2
,
dst2_linesize
);
#define UPDATE_FACTOR do { \
int factor; \
factor = f.color_diff_coeff[COLOR_DIFF_COEFF_SIZE/2 + pre_val - \
f.pre_filter_buf[ix + iy*f.pre_filter_linesize]] * f.dist_coeff[dx + dy*f.dist_linesize]; \
sum += src[ix + iy*src_linesize] * factor; \
div += factor; \
} while (0)
for
(
y
=
0
;
y
<
h
;
y
++
)
{
for
(
x
=
0
;
x
<
w
;
x
++
)
{
int
sum
=
0
;
int
div
=
0
;
int
dy
;
const
int
pre_val
=
f
.
pre_filter_buf
[
x
+
y
*
f
.
pre_filter_linesize
];
if
(
x
>=
radius
&&
x
<
w
-
radius
)
{
for
(
dy
=
0
;
dy
<
radius
*
2
+
1
;
dy
++
)
{
int
dx
;
int
iy
=
y
+
dy
-
radius
;
if
(
iy
<
0
)
iy
=
-
iy
;
else
if
(
iy
>=
h
)
iy
=
h
+
h
-
iy
-
1
;
for
(
dx
=
0
;
dx
<
radius
*
2
+
1
;
dx
++
)
{
const
int
ix
=
x
+
dx
-
radius
;
UPDATE_FACTOR
;
}
}
}
else
{
for
(
dy
=
0
;
dy
<
radius
*
2
+
1
;
dy
++
)
{
int
dx
;
int
iy
=
y
+
dy
-
radius
;
if
(
iy
<
0
)
iy
=
-
iy
;
else
if
(
iy
>=
h
)
iy
=
h
+
h
-
iy
-
1
;
for
(
dx
=
0
;
dx
<
radius
*
2
+
1
;
dx
++
)
{
int
ix
=
x
+
dx
-
radius
;
if
(
ix
<
0
)
ix
=
-
ix
;
else
if
(
ix
>=
w
)
ix
=
w
+
w
-
ix
-
1
;
UPDATE_FACTOR
;
}
}
}
dst
[
x
+
y
*
dst_linesize
]
=
(
sum
+
div
/
2
)
/
div
;
}
}
}
static
int
filter_frame
(
AVFilterLink
*
inlink
,
AVFrame
*
inpic
)
{
SabContext
*
sab
=
inlink
->
dst
->
priv
;
AVFilterLink
*
outlink
=
inlink
->
dst
->
outputs
[
0
];
AVFrame
*
outpic
;
outpic
=
ff_get_video_buffer
(
outlink
,
outlink
->
w
,
outlink
->
h
);
if
(
!
outpic
)
{
av_frame_free
(
&
inpic
);
return
AVERROR
(
ENOMEM
);
}
av_frame_copy_props
(
outpic
,
inpic
);
blur
(
outpic
->
data
[
0
],
outpic
->
linesize
[
0
],
inpic
->
data
[
0
],
inpic
->
linesize
[
0
],
inlink
->
w
,
inlink
->
h
,
&
sab
->
luma
);
if
(
inpic
->
data
[
2
])
{
int
cw
=
FF_CEIL_RSHIFT
(
inlink
->
w
,
sab
->
hsub
);
int
ch
=
FF_CEIL_RSHIFT
(
inlink
->
h
,
sab
->
vsub
);
blur
(
outpic
->
data
[
1
],
outpic
->
linesize
[
1
],
inpic
->
data
[
1
],
inpic
->
linesize
[
1
],
cw
,
ch
,
&
sab
->
chroma
);
blur
(
outpic
->
data
[
2
],
outpic
->
linesize
[
2
],
inpic
->
data
[
2
],
inpic
->
linesize
[
2
],
cw
,
ch
,
&
sab
->
chroma
);
}
av_frame_free
(
&
inpic
);
return
ff_filter_frame
(
outlink
,
outpic
);
}
static
const
AVFilterPad
sab_inputs
[]
=
{
{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
.
filter_frame
=
filter_frame
,
.
config_props
=
config_props
,
},
{
NULL
}
};
static
const
AVFilterPad
sab_outputs
[]
=
{
{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
},
{
NULL
}
};
AVFilter
avfilter_vf_sab
=
{
.
name
=
"sab"
,
.
description
=
NULL_IF_CONFIG_SMALL
(
"Apply shape adaptive blur."
),
.
priv_size
=
sizeof
(
SabContext
),
.
init
=
init
,
.
uninit
=
uninit
,
.
query_formats
=
query_formats
,
.
inputs
=
sab_inputs
,
.
outputs
=
sab_outputs
,
.
priv_class
=
&
sab_class
,
.
flags
=
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
,
};
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