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Linshizhi
ffmpeg.wasm-core
Commits
c3a5702e
Commit
c3a5702e
authored
Jun 24, 2015
by
Paul B Mahol
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lavfi: add (a)drawgraph filter
Signed-off-by:
Paul B Mahol
<
onemda@gmail.com
>
parent
4385a1ce
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6 changed files
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453 additions
and
1 deletion
+453
-1
Changelog
Changelog
+1
-0
filters.texi
doc/filters.texi
+101
-0
Makefile
libavfilter/Makefile
+2
-0
allfilters.c
libavfilter/allfilters.c
+2
-0
f_drawgraph.c
libavfilter/f_drawgraph.c
+346
-0
version.h
libavfilter/version.h
+1
-1
No files found.
Changelog
View file @
c3a5702e
...
...
@@ -12,6 +12,7 @@ version <next>:
- showvolume filter
- Many improvements to the JPEG 2000 decoder
- Go2Meeting decoding support
- adrawgraph audio and drawgraph video filter
version 2.7:
...
...
doc/filters.texi
View file @
c3a5702e
...
...
@@ -4000,6 +4000,105 @@ drawbox=x=-t:y=0.5*(ih-iw/2.4)-t:w=iw+t*2:h=iw/2.4+t*2:t=2:c=red
@end example
@end itemize
@section drawgraph, adrawgraph
Draw a graph using input video or audio metadata.
It accepts the following parameters:
@table @option
@item m1
Set 1st frame metadata key from which metadata values will be used to draw a graph.
@item fg1
Set 1st foreground color expression.
@item m2
Set 2nd frame metadata key from which metadata values will be used to draw a graph.
@item fg2
Set 2nd foreground color expression.
@item m3
Set 3rd frame metadata key from which metadata values will be used to draw a graph.
@item fg3
Set 3rd foreground color expression.
@item m4
Set 4th frame metadata key from which metadata values will be used to draw a graph.
@item fg4
Set 4th foreground color expression.
@item min
Set minimal value of metadata value.
@item max
Set maximal value of metadata value.
@item bg
Set graph background color. Default is white.
@item mode
Set graph mode.
Available values for mode is:
@table @samp
@item bar
@item dot
@item line
@end table
Default is @code{line}.
@item slide
Set slide mode.
Available values for slide is:
@table @samp
@item frame
Draw new frame when right border is reached.
@item replace
Replace old columns with new ones.
@item scroll
Scroll from right to left.
@end table
Default is @code{frame}.
@item size
Set size of graph video. For the syntax of this option, check the
@ref{video size syntax,,"Video size" section in the ffmpeg-utils manual,ffmpeg-utils}.
The default value is @code{900x256}.
The foreground color expressions can use the following variables:
@table @option
@item MIN
Minimal value of metadata value.
@item MAX
Maximal value of metadata value.
@item VAL
Current metadata key value.
@end table
The color is defined as 0xAABBGGRR.
@end table
Example using metadata from @ref{signalstats} filter:
@example
signalstats,drawgraph=lavfi.signalstats.YAVG:min=0:max=255
@end example
Example using metadata from @ref{ebur128} filter:
@example
ebur128=metadata=1,adrawgraph=lavfi.r128.M:min=-120:max=5
@end example
@section drawgrid
Draw a grid on the input image.
...
...
@@ -8639,6 +8738,7 @@ Swap the second and third planes of the input:
ffmpeg -i INPUT -vf shuffleplanes=0:2:1:3 OUTPUT
@end example
@anchor{signalstats}
@section signalstats
Evaluate various visual metrics that assist in determining issues associated
with the digitization of analog video media.
...
...
@@ -11069,6 +11169,7 @@ do not have exactly the same duration in the first file.
@end itemize
@anchor{ebur128}
@section ebur128
EBU R128 scanner filter. This filter takes an audio stream as input and outputs
...
...
libavfilter/Makefile
View file @
c3a5702e
...
...
@@ -117,6 +117,7 @@ OBJS-$(CONFIG_DELOGO_FILTER) += vf_delogo.o
OBJS-$(CONFIG_DESHAKE_FILTER)
+=
vf_deshake.o
OBJS-$(CONFIG_DETELECINE_FILTER)
+=
vf_detelecine.o
OBJS-$(CONFIG_DRAWBOX_FILTER)
+=
vf_drawbox.o
OBJS-$(CONFIG_DRAWGRAPH_FILTER)
+=
f_drawgraph.o
OBJS-$(CONFIG_DRAWGRID_FILTER)
+=
vf_drawbox.o
OBJS-$(CONFIG_DRAWTEXT_FILTER)
+=
vf_drawtext.o
OBJS-$(CONFIG_ELBG_FILTER)
+=
vf_elbg.o
...
...
@@ -237,6 +238,7 @@ OBJS-$(CONFIG_TESTSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_NULLSINK_FILTER)
+=
vsink_nullsink.o
# multimedia filters
OBJS-$(CONFIG_ADRAWGRAPH_FILTER)
+=
f_drawgraph.o
OBJS-$(CONFIG_AVECTORSCOPE_FILTER)
+=
avf_avectorscope.o
OBJS-$(CONFIG_CONCAT_FILTER)
+=
avf_concat.o
OBJS-$(CONFIG_SHOWCQT_FILTER)
+=
avf_showcqt.o
...
...
libavfilter/allfilters.c
View file @
c3a5702e
...
...
@@ -133,6 +133,7 @@ void avfilter_register_all(void)
REGISTER_FILTER
(
DESHAKE
,
deshake
,
vf
);
REGISTER_FILTER
(
DETELECINE
,
detelecine
,
vf
);
REGISTER_FILTER
(
DRAWBOX
,
drawbox
,
vf
);
REGISTER_FILTER
(
DRAWGRAPH
,
drawgraph
,
vf
);
REGISTER_FILTER
(
DRAWGRID
,
drawgrid
,
vf
);
REGISTER_FILTER
(
DRAWTEXT
,
drawtext
,
vf
);
REGISTER_FILTER
(
EDGEDETECT
,
edgedetect
,
vf
);
...
...
@@ -252,6 +253,7 @@ void avfilter_register_all(void)
REGISTER_FILTER
(
NULLSINK
,
nullsink
,
vsink
);
/* multimedia filters */
REGISTER_FILTER
(
ADRAWGRAPH
,
adrawgraph
,
avf
);
REGISTER_FILTER
(
AVECTORSCOPE
,
avectorscope
,
avf
);
REGISTER_FILTER
(
CONCAT
,
concat
,
avf
);
REGISTER_FILTER
(
SHOWCQT
,
showcqt
,
avf
);
...
...
libavfilter/f_drawgraph.c
0 → 100644
View file @
c3a5702e
/*
* Copyright (c) 2015 Paul B Mahol
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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
*/
#include "float.h"
#include "libavutil/eval.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
typedef
struct
DrawGraphContext
{
const
AVClass
*
class
;
char
*
key
[
4
];
float
min
,
max
;
char
*
fg_str
[
4
];
AVExpr
*
fg_expr
[
4
];
uint8_t
bg
[
4
];
int
mode
;
int
slide
;
int
w
,
h
;
AVFrame
*
out
;
int
x
;
int
prev_y
[
4
];
int
first
;
}
DrawGraphContext
;
#define OFFSET(x) offsetof(DrawGraphContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
static
const
AVOption
drawgraph_options
[]
=
{
{
"m1"
,
"set 1st metadata key"
,
OFFSET
(
key
[
0
]),
AV_OPT_TYPE_STRING
,
{.
str
=
""
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"fg1"
,
"set 1st foreground color expression"
,
OFFSET
(
fg_str
[
0
]),
AV_OPT_TYPE_STRING
,
{.
str
=
"0xff0000"
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"m2"
,
"set 2nd metadata key"
,
OFFSET
(
key
[
1
]),
AV_OPT_TYPE_STRING
,
{.
str
=
""
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"fg2"
,
"set 2nd foreground color expression"
,
OFFSET
(
fg_str
[
1
]),
AV_OPT_TYPE_STRING
,
{.
str
=
"0x00ff00"
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"m3"
,
"set 3rd metadata key"
,
OFFSET
(
key
[
2
]),
AV_OPT_TYPE_STRING
,
{.
str
=
""
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"fg3"
,
"set 3rd foreground color expression"
,
OFFSET
(
fg_str
[
2
]),
AV_OPT_TYPE_STRING
,
{.
str
=
"0xff00ff"
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"m4"
,
"set 4th metadata key"
,
OFFSET
(
key
[
3
]),
AV_OPT_TYPE_STRING
,
{.
str
=
""
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"fg4"
,
"set 4th foreground color expression"
,
OFFSET
(
fg_str
[
3
]),
AV_OPT_TYPE_STRING
,
{.
str
=
"0xffff00"
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"bg"
,
"set background color"
,
OFFSET
(
bg
),
AV_OPT_TYPE_COLOR
,
{.
str
=
"white"
},
CHAR_MIN
,
CHAR_MAX
,
FLAGS
},
{
"min"
,
"set minimal value"
,
OFFSET
(
min
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=-
1
.},
INT_MIN
,
INT_MAX
,
FLAGS
},
{
"max"
,
"set maximal value"
,
OFFSET
(
max
),
AV_OPT_TYPE_FLOAT
,
{.
dbl
=
1
.},
INT_MIN
,
INT_MAX
,
FLAGS
},
{
"mode"
,
"set graph mode"
,
OFFSET
(
mode
),
AV_OPT_TYPE_INT
,
{.
i64
=
2
},
0
,
2
,
FLAGS
,
"mode"
},
{
"bar"
,
"draw bars"
,
OFFSET
(
mode
),
AV_OPT_TYPE_CONST
,
{.
i64
=
0
},
0
,
0
,
FLAGS
,
"mode"
},
{
"dot"
,
"draw dots"
,
OFFSET
(
mode
),
AV_OPT_TYPE_CONST
,
{.
i64
=
1
},
0
,
0
,
FLAGS
,
"mode"
},
{
"line"
,
"draw lines"
,
OFFSET
(
mode
),
AV_OPT_TYPE_CONST
,
{.
i64
=
2
},
0
,
0
,
FLAGS
,
"mode"
},
{
"slide"
,
"set slide mode"
,
OFFSET
(
slide
),
AV_OPT_TYPE_INT
,
{.
i64
=
0
},
0
,
2
,
FLAGS
,
"slide"
},
{
"frame"
,
"draw new frames"
,
OFFSET
(
slide
),
AV_OPT_TYPE_CONST
,
{.
i64
=
0
},
0
,
0
,
FLAGS
,
"slide"
},
{
"replace"
,
"replace old columns with new"
,
OFFSET
(
slide
),
AV_OPT_TYPE_CONST
,
{.
i64
=
1
},
0
,
0
,
FLAGS
,
"slide"
},
{
"scroll"
,
"scroll from right to left"
,
OFFSET
(
slide
),
AV_OPT_TYPE_CONST
,
{.
i64
=
2
},
0
,
0
,
FLAGS
,
"slide"
},
{
"size"
,
"set graph size"
,
OFFSET
(
w
),
AV_OPT_TYPE_IMAGE_SIZE
,
{.
str
=
"900x256"
},
0
,
0
,
FLAGS
},
{
"s"
,
"set graph size"
,
OFFSET
(
w
),
AV_OPT_TYPE_IMAGE_SIZE
,
{.
str
=
"900x256"
},
0
,
0
,
FLAGS
},
{
NULL
}
};
static
const
char
*
const
var_names
[]
=
{
"MAX"
,
"MIN"
,
"VAL"
,
NULL
};
enum
{
VAR_MAX
,
VAR_MIN
,
VAR_VAL
,
VAR_VARS_NB
};
static
av_cold
int
init
(
AVFilterContext
*
ctx
)
{
DrawGraphContext
*
s
=
ctx
->
priv
;
int
ret
,
i
;
if
(
s
->
max
<=
s
->
min
)
{
av_log
(
ctx
,
AV_LOG_ERROR
,
"max is same or lower than min
\n
"
);
return
AVERROR
(
EINVAL
);
}
for
(
i
=
0
;
i
<
4
;
i
++
)
{
if
(
s
->
fg_str
[
i
])
{
ret
=
av_expr_parse
(
&
s
->
fg_expr
[
i
],
s
->
fg_str
[
i
],
var_names
,
NULL
,
NULL
,
NULL
,
NULL
,
0
,
ctx
);
if
(
ret
<
0
)
return
ret
;
}
}
s
->
first
=
1
;
return
0
;
}
static
int
query_formats
(
AVFilterContext
*
ctx
)
{
AVFilterLink
*
outlink
=
ctx
->
outputs
[
0
];
static
const
enum
AVPixelFormat
pix_fmts
[]
=
{
AV_PIX_FMT_RGBA
,
AV_PIX_FMT_NONE
};
AVFilterFormats
*
fmts_list
=
ff_make_format_list
(
pix_fmts
);
if
(
!
fmts_list
)
return
AVERROR
(
ENOMEM
);
ff_formats_ref
(
fmts_list
,
&
outlink
->
in_formats
);
return
0
;
}
static
void
clear_image
(
DrawGraphContext
*
s
,
AVFrame
*
out
,
AVFilterLink
*
outlink
)
{
int
i
,
j
;
int
bg
=
AV_RN32
(
s
->
bg
);
for
(
i
=
0
;
i
<
out
->
height
;
i
++
)
for
(
j
=
0
;
j
<
out
->
width
;
j
++
)
AV_WN32
(
out
->
data
[
0
]
+
i
*
out
->
linesize
[
0
]
+
j
*
4
,
bg
);
}
static
inline
void
draw_dot
(
int
fg
,
int
x
,
int
y
,
AVFrame
*
out
)
{
AV_WN32
(
out
->
data
[
0
]
+
y
*
out
->
linesize
[
0
]
+
x
*
4
,
fg
);
}
static
int
filter_frame
(
AVFilterLink
*
inlink
,
AVFrame
*
in
)
{
AVFilterContext
*
ctx
=
inlink
->
dst
;
DrawGraphContext
*
s
=
ctx
->
priv
;
AVFilterLink
*
outlink
=
ctx
->
outputs
[
0
];
AVDictionary
*
metadata
;
AVDictionaryEntry
*
e
;
AVFrame
*
out
=
s
->
out
;
int
i
;
if
(
!
s
->
out
||
s
->
out
->
width
!=
outlink
->
w
||
s
->
out
->
height
!=
outlink
->
h
)
{
av_frame_free
(
&
s
->
out
);
s
->
out
=
ff_get_video_buffer
(
outlink
,
outlink
->
w
,
outlink
->
h
);
out
=
s
->
out
;
if
(
!
s
->
out
)
{
av_frame_free
(
&
in
);
return
AVERROR
(
ENOMEM
);
}
clear_image
(
s
,
out
,
outlink
);
}
av_frame_copy_props
(
out
,
in
);
metadata
=
av_frame_get_metadata
(
in
);
for
(
i
=
0
;
i
<
4
;
i
++
)
{
double
values
[
VAR_VARS_NB
];
int
j
,
y
,
x
,
fg
,
bg
,
old
;
float
vf
;
e
=
av_dict_get
(
metadata
,
s
->
key
[
i
],
NULL
,
0
);
if
(
!
e
||
!
e
->
value
)
continue
;
if
(
sscanf
(
e
->
value
,
"%f"
,
&
vf
)
!=
1
)
continue
;
vf
=
av_clipf
(
vf
,
s
->
min
,
s
->
max
);
values
[
VAR_MIN
]
=
s
->
min
;
values
[
VAR_MAX
]
=
s
->
max
;
values
[
VAR_VAL
]
=
vf
;
fg
=
av_expr_eval
(
s
->
fg_expr
[
i
],
values
,
NULL
);
bg
=
AV_RN32
(
s
->
bg
);
if
(
i
==
0
&&
s
->
x
>=
outlink
->
w
)
{
if
(
s
->
slide
==
0
||
s
->
slide
==
1
)
s
->
x
=
0
;
if
(
s
->
slide
==
2
)
{
s
->
x
=
outlink
->
w
-
1
;
for
(
j
=
0
;
j
<
outlink
->
h
;
j
++
)
{
memmove
(
out
->
data
[
0
]
+
j
*
out
->
linesize
[
0
]
,
out
->
data
[
0
]
+
j
*
out
->
linesize
[
0
]
+
4
,
(
outlink
->
w
-
1
)
*
4
);
}
}
else
if
(
s
->
slide
==
0
)
{
clear_image
(
s
,
out
,
outlink
);
}
}
x
=
s
->
x
;
y
=
(
outlink
->
h
-
1
)
*
(
1
-
((
vf
-
s
->
min
)
/
(
s
->
max
-
s
->
min
)));
switch
(
s
->
mode
)
{
case
0
:
if
(
i
==
0
&&
(
s
->
slide
==
1
||
s
->
slide
==
2
))
for
(
j
=
0
;
j
<
outlink
->
h
;
j
++
)
draw_dot
(
bg
,
x
,
j
,
out
);
old
=
AV_RN32
(
out
->
data
[
0
]
+
y
*
out
->
linesize
[
0
]
+
x
*
4
);
for
(
j
=
y
;
j
<
outlink
->
h
;
j
++
)
{
if
(
old
!=
bg
&&
(
AV_RN32
(
out
->
data
[
0
]
+
j
*
out
->
linesize
[
0
]
+
x
*
4
)
!=
old
)
||
AV_RN32
(
out
->
data
[
0
]
+
FFMIN
(
j
+
1
,
outlink
->
h
-
1
)
*
out
->
linesize
[
0
]
+
x
*
4
)
!=
old
)
{
draw_dot
(
fg
,
x
,
j
,
out
);
break
;
}
draw_dot
(
fg
,
x
,
j
,
out
);
}
break
;
case
1
:
if
(
i
==
0
&&
(
s
->
slide
==
1
||
s
->
slide
==
2
))
for
(
j
=
0
;
j
<
outlink
->
h
;
j
++
)
draw_dot
(
bg
,
x
,
j
,
out
);
draw_dot
(
fg
,
x
,
y
,
out
);
break
;
case
2
:
if
(
s
->
first
)
{
s
->
first
=
0
;
s
->
prev_y
[
i
]
=
y
;
}
if
(
i
==
0
&&
(
s
->
slide
==
1
||
s
->
slide
==
2
))
{
for
(
j
=
0
;
j
<
y
;
j
++
)
draw_dot
(
bg
,
x
,
j
,
out
);
for
(
j
=
outlink
->
h
-
1
;
j
>
y
;
j
--
)
draw_dot
(
bg
,
x
,
j
,
out
);
}
if
(
y
<=
s
->
prev_y
[
i
])
{
for
(
j
=
y
;
j
<=
s
->
prev_y
[
i
];
j
++
)
draw_dot
(
fg
,
x
,
j
,
out
);
}
else
{
for
(
j
=
s
->
prev_y
[
i
];
j
<=
y
;
j
++
)
draw_dot
(
fg
,
x
,
j
,
out
);
}
s
->
prev_y
[
i
]
=
y
;
break
;
}
}
s
->
x
++
;
av_frame_free
(
&
in
);
return
ff_filter_frame
(
outlink
,
av_frame_clone
(
s
->
out
));
}
static
int
config_output
(
AVFilterLink
*
outlink
)
{
DrawGraphContext
*
s
=
outlink
->
src
->
priv
;
outlink
->
w
=
s
->
w
;
outlink
->
h
=
s
->
h
;
outlink
->
sample_aspect_ratio
=
(
AVRational
){
1
,
1
};
return
0
;
}
static
av_cold
void
uninit
(
AVFilterContext
*
ctx
)
{
DrawGraphContext
*
s
=
ctx
->
priv
;
int
i
;
for
(
i
=
0
;
i
<
4
;
i
++
)
av_expr_free
(
s
->
fg_expr
[
i
]);
av_frame_free
(
&
s
->
out
);
}
#if CONFIG_DRAWGRAPH_FILTER
AVFILTER_DEFINE_CLASS
(
drawgraph
);
static
const
AVFilterPad
drawgraph_inputs
[]
=
{
{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
.
filter_frame
=
filter_frame
,
},
{
NULL
}
};
static
const
AVFilterPad
drawgraph_outputs
[]
=
{
{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
.
config_props
=
config_output
,
},
{
NULL
}
};
AVFilter
ff_vf_drawgraph
=
{
.
name
=
"drawgraph"
,
.
description
=
NULL_IF_CONFIG_SMALL
(
"Draw a graph using input video metadata."
),
.
priv_size
=
sizeof
(
DrawGraphContext
),
.
priv_class
=
&
drawgraph_class
,
.
query_formats
=
query_formats
,
.
init
=
init
,
.
uninit
=
uninit
,
.
inputs
=
drawgraph_inputs
,
.
outputs
=
drawgraph_outputs
,
};
#endif // CONFIG_DRAWGRAPH_FILTER
#if CONFIG_ADRAWGRAPH_FILTER
#define adrawgraph_options drawgraph_options
AVFILTER_DEFINE_CLASS
(
adrawgraph
);
static
const
AVFilterPad
adrawgraph_inputs
[]
=
{
{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_AUDIO
,
.
filter_frame
=
filter_frame
,
},
{
NULL
}
};
static
const
AVFilterPad
adrawgraph_outputs
[]
=
{
{
.
name
=
"default"
,
.
type
=
AVMEDIA_TYPE_VIDEO
,
.
config_props
=
config_output
,
},
{
NULL
}
};
AVFilter
ff_avf_adrawgraph
=
{
.
name
=
"adrawgraph"
,
.
description
=
NULL_IF_CONFIG_SMALL
(
"Draw a graph using input audio metadata."
),
.
priv_size
=
sizeof
(
DrawGraphContext
),
.
priv_class
=
&
adrawgraph_class
,
.
query_formats
=
query_formats
,
.
init
=
init
,
.
uninit
=
uninit
,
.
inputs
=
adrawgraph_inputs
,
.
outputs
=
adrawgraph_outputs
,
};
#endif // CONFIG_ADRAWGRAPH_FILTER
libavfilter/version.h
View file @
c3a5702e
...
...
@@ -30,7 +30,7 @@
#include "libavutil/version.h"
#define LIBAVFILTER_VERSION_MAJOR 5
#define LIBAVFILTER_VERSION_MINOR
19
#define LIBAVFILTER_VERSION_MINOR
20
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
...
...
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