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Linshizhi
ffmpeg.wasm-core
Commits
a42b8991
Commit
a42b8991
authored
Nov 28, 2012
by
Anton Khirnov
Committed by
Michael Niedermayer
Nov 28, 2012
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vf_drawbox: switch to filter frame
Signed-off-by:
Michael Niedermayer
<
michaelni@gmx.at
>
parent
267290ce
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1 changed file
with
9 additions
and
12 deletions
+9
-12
vf_drawbox.c
libavfilter/vf_drawbox.c
+9
-12
No files found.
libavfilter/vf_drawbox.c
View file @
a42b8991
...
...
@@ -130,27 +130,26 @@ static int config_input(AVFilterLink *inlink)
return
0
;
}
static
int
draw_slice
(
AVFilterLink
*
inlink
,
int
y0
,
int
h
,
int
slice_dir
)
static
int
filter_frame
(
AVFilterLink
*
inlink
,
AVFilterBufferRef
*
frame
)
{
DrawBoxContext
*
drawbox
=
inlink
->
dst
->
priv
;
int
plane
,
x
,
y
,
xb
=
drawbox
->
x
,
yb
=
drawbox
->
y
;
unsigned
char
*
row
[
4
];
AVFilterBufferRef
*
picref
=
inlink
->
cur_buf
;
for
(
y
=
FFMAX
(
yb
,
y0
);
y
<
y0
+
h
&&
y
<
yb
+
drawbox
->
h
;
y
++
)
{
row
[
0
]
=
picref
->
data
[
0
]
+
y
*
picref
->
linesize
[
0
];
for
(
y
=
FFMAX
(
yb
,
0
);
y
<
frame
->
video
->
h
&&
y
<
(
yb
+
drawbox
->
h
)
;
y
++
)
{
row
[
0
]
=
frame
->
data
[
0
]
+
y
*
frame
->
linesize
[
0
];
for
(
plane
=
1
;
plane
<
3
;
plane
++
)
row
[
plane
]
=
picref
->
data
[
plane
]
+
picref
->
linesize
[
plane
]
*
(
y
>>
drawbox
->
vsub
);
row
[
plane
]
=
frame
->
data
[
plane
]
+
frame
->
linesize
[
plane
]
*
(
y
>>
drawbox
->
vsub
);
if
(
drawbox
->
invert_color
)
{
for
(
x
=
FFMAX
(
xb
,
0
);
x
<
xb
+
drawbox
->
w
&&
x
<
picref
->
video
->
w
;
x
++
)
for
(
x
=
FFMAX
(
xb
,
0
);
x
<
xb
+
drawbox
->
w
&&
x
<
frame
->
video
->
w
;
x
++
)
if
((
y
-
yb
<
drawbox
->
thickness
-
1
)
||
(
yb
+
drawbox
->
h
-
y
<
drawbox
->
thickness
)
||
(
x
-
xb
<
drawbox
->
thickness
-
1
)
||
(
xb
+
drawbox
->
w
-
x
<
drawbox
->
thickness
))
row
[
0
][
x
]
=
0xff
-
row
[
0
][
x
];
}
else
{
for
(
x
=
FFMAX
(
xb
,
0
);
x
<
xb
+
drawbox
->
w
&&
x
<
picref
->
video
->
w
;
x
++
)
{
for
(
x
=
FFMAX
(
xb
,
0
);
x
<
xb
+
drawbox
->
w
&&
x
<
frame
->
video
->
w
;
x
++
)
{
double
alpha
=
(
double
)
drawbox
->
yuv_color
[
A
]
/
255
;
if
((
y
-
yb
<
drawbox
->
thickness
-
1
)
||
(
yb
+
drawbox
->
h
-
y
<
drawbox
->
thickness
)
||
...
...
@@ -163,7 +162,7 @@ static int draw_slice(AVFilterLink *inlink, int y0, int h, int slice_dir)
}
}
return
ff_
draw_slice
(
inlink
->
dst
->
outputs
[
0
],
y0
,
h
,
1
);
return
ff_
filter_frame
(
inlink
->
dst
->
outputs
[
0
],
frame
);
}
static
const
AVFilterPad
avfilter_vf_drawbox_inputs
[]
=
{
...
...
@@ -172,9 +171,7 @@ static const AVFilterPad avfilter_vf_drawbox_inputs[] = {
.
type
=
AVMEDIA_TYPE_VIDEO
,
.
config_props
=
config_input
,
.
get_video_buffer
=
ff_null_get_video_buffer
,
.
start_frame
=
ff_null_start_frame
,
.
draw_slice
=
draw_slice
,
.
end_frame
=
ff_null_end_frame
,
.
filter_frame
=
filter_frame
,
.
min_perms
=
AV_PERM_WRITE
|
AV_PERM_READ
,
},
{
NULL
}
...
...
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