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体验新版 GitCode,发现更多精彩内容 >>
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460e7b4f
编写于
2月 25, 2013
作者:
A
Anton Khirnov
浏览文件
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电子邮件补丁
差异文件
vf_cropdetect: switch to an AVOptions-based system.
上级
fba0156a
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
21 addition
and
10 deletion
+21
-10
doc/filters.texi
doc/filters.texi
+1
-4
libavfilter/vf_cropdetect.c
libavfilter/vf_cropdetect.c
+20
-6
未找到文件。
doc/filters.texi
浏览文件 @
460e7b4f
...
@@ -742,10 +742,7 @@ Calculate necessary cropping parameters and prints the recommended
...
@@ -742,10 +742,7 @@ Calculate necessary cropping parameters and prints the recommended
parameters through the logging system. The detected dimensions
parameters through the logging system. The detected dimensions
correspond to the non-black area of the input video.
correspond to the non-black area of the input video.
It accepts the syntax:
This filter accepts the following options:
@example
cropdetect[=@var{limit}[:@var{round}[:@var{reset}]]]
@end example
@table @option
@table @option
...
...
libavfilter/vf_cropdetect.c
浏览文件 @
460e7b4f
...
@@ -27,12 +27,15 @@
...
@@ -27,12 +27,15 @@
#include "libavutil/imgutils.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "avfilter.h"
#include "formats.h"
#include "formats.h"
#include "internal.h"
#include "internal.h"
#include "video.h"
#include "video.h"
typedef
struct
{
typedef
struct
{
const
AVClass
*
class
;
int
x1
,
y1
,
x2
,
y2
;
int
x1
,
y1
,
x2
,
y2
;
int
limit
;
int
limit
;
int
round
;
int
round
;
...
@@ -87,14 +90,8 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
...
@@ -87,14 +90,8 @@ static av_cold int init(AVFilterContext *ctx, const char *args)
{
{
CropDetectContext
*
cd
=
ctx
->
priv
;
CropDetectContext
*
cd
=
ctx
->
priv
;
cd
->
limit
=
24
;
cd
->
round
=
0
;
cd
->
reset_count
=
0
;
cd
->
frame_nb
=
-
2
;
cd
->
frame_nb
=
-
2
;
if
(
args
)
sscanf
(
args
,
"%d:%d:%d"
,
&
cd
->
limit
,
&
cd
->
round
,
&
cd
->
reset_count
);
av_log
(
ctx
,
AV_LOG_VERBOSE
,
"limit:%d round:%d reset_count:%d
\n
"
,
av_log
(
ctx
,
AV_LOG_VERBOSE
,
"limit:%d round:%d reset_count:%d
\n
"
,
cd
->
limit
,
cd
->
round
,
cd
->
reset_count
);
cd
->
limit
,
cd
->
round
,
cd
->
reset_count
);
...
@@ -196,6 +193,22 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
...
@@ -196,6 +193,22 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
return
ff_filter_frame
(
inlink
->
dst
->
outputs
[
0
],
frame
);
return
ff_filter_frame
(
inlink
->
dst
->
outputs
[
0
],
frame
);
}
}
#define OFFSET(x) offsetof(CropDetectContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
static
const
AVOption
options
[]
=
{
{
"limit"
,
"Threshold below which the pixel is considered black"
,
OFFSET
(
limit
),
AV_OPT_TYPE_INT
,
{
.
i64
=
24
},
0
,
INT_MAX
,
FLAGS
},
{
"round"
,
"Value by which the width/height should be divisible"
,
OFFSET
(
round
),
AV_OPT_TYPE_INT
,
{
.
i64
=
0
},
0
,
INT_MAX
,
FLAGS
},
{
"reset"
,
"Recalculate the crop area after this many frames"
,
OFFSET
(
reset_count
),
AV_OPT_TYPE_INT
,
{
.
i64
=
0
},
0
,
INT_MAX
,
FLAGS
},
{
NULL
},
};
static
const
AVClass
cropdetect_class
=
{
.
class_name
=
"cropdetect"
,
.
item_name
=
av_default_item_name
,
.
option
=
options
,
.
version
=
LIBAVUTIL_VERSION_INT
,
};
static
const
AVFilterPad
avfilter_vf_cropdetect_inputs
[]
=
{
static
const
AVFilterPad
avfilter_vf_cropdetect_inputs
[]
=
{
{
{
.
name
=
"default"
,
.
name
=
"default"
,
...
@@ -220,6 +233,7 @@ AVFilter avfilter_vf_cropdetect = {
...
@@ -220,6 +233,7 @@ AVFilter avfilter_vf_cropdetect = {
.
description
=
NULL_IF_CONFIG_SMALL
(
"Auto-detect crop size."
),
.
description
=
NULL_IF_CONFIG_SMALL
(
"Auto-detect crop size."
),
.
priv_size
=
sizeof
(
CropDetectContext
),
.
priv_size
=
sizeof
(
CropDetectContext
),
.
priv_class
=
&
cropdetect_class
,
.
init
=
init
,
.
init
=
init
,
.
query_formats
=
query_formats
,
.
query_formats
=
query_formats
,
...
...
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