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体验新版 GitCode,发现更多精彩内容 >>
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6c1638b1
编写于
12月 21, 2018
作者:
A
Alexander Alekhin
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差异文件
Merge pull request #13487 from alalek:videoio_test_frame_size_changing
上级
1a6c2b37
a3a36700
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
37 addition
and
1 deletion
+37
-1
modules/videoio/test/test_camera.cpp
modules/videoio/test/test_camera.cpp
+37
-1
未找到文件。
modules/videoio/test/test_camera.cpp
浏览文件 @
6c1638b1
...
...
@@ -11,7 +11,7 @@
namespace
opencv_test
{
namespace
{
static
void
test_readFrames
(
/*const*/
VideoCapture
&
capture
,
const
int
N
=
100
)
static
void
test_readFrames
(
/*const*/
VideoCapture
&
capture
,
const
int
N
=
100
,
Mat
*
lastFrame
=
NULL
)
{
Mat
frame
;
int64
time0
=
cv
::
getTickCount
();
...
...
@@ -26,6 +26,7 @@ static void test_readFrames(/*const*/ VideoCapture& capture, const int N = 100)
}
int64
time1
=
cv
::
getTickCount
();
printf
(
"Processed %d frames on %.2f FPS
\n
"
,
N
,
(
N
*
cv
::
getTickFrequency
())
/
(
time1
-
time0
+
1
));
if
(
lastFrame
)
*
lastFrame
=
frame
.
clone
();
}
TEST
(
DISABLED_VideoIO_Camera
,
basic
)
...
...
@@ -55,4 +56,39 @@ TEST(DISABLED_VideoIO_Camera, validate_V4L2_MJPEG)
capture
.
release
();
}
TEST
(
DISABLED_VideoIO_Camera
,
validate_V4L2_FrameSize
)
{
VideoCapture
capture
(
CAP_V4L2
);
ASSERT_TRUE
(
capture
.
isOpened
());
std
::
cout
<<
"Camera 0 via "
<<
capture
.
getBackendName
()
<<
" backend"
<<
std
::
endl
;
std
::
cout
<<
"Frame width: "
<<
capture
.
get
(
CAP_PROP_FRAME_WIDTH
)
<<
std
::
endl
;
std
::
cout
<<
" height: "
<<
capture
.
get
(
CAP_PROP_FRAME_HEIGHT
)
<<
std
::
endl
;
std
::
cout
<<
"Capturing FPS: "
<<
capture
.
get
(
CAP_PROP_FPS
)
<<
std
::
endl
;
int
fourcc
=
(
int
)
capture
.
get
(
CAP_PROP_FOURCC
);
std
::
cout
<<
"FOURCC code: "
<<
cv
::
format
(
"0x%8x"
,
fourcc
)
<<
std
::
endl
;
test_readFrames
(
capture
,
30
);
EXPECT_TRUE
(
capture
.
set
(
CAP_PROP_FRAME_WIDTH
,
640
));
EXPECT_TRUE
(
capture
.
set
(
CAP_PROP_FRAME_HEIGHT
,
480
));
std
::
cout
<<
"Frame width: "
<<
capture
.
get
(
CAP_PROP_FRAME_WIDTH
)
<<
std
::
endl
;
std
::
cout
<<
" height: "
<<
capture
.
get
(
CAP_PROP_FRAME_HEIGHT
)
<<
std
::
endl
;
std
::
cout
<<
"Capturing FPS: "
<<
capture
.
get
(
CAP_PROP_FPS
)
<<
std
::
endl
;
Mat
frame640x480
;
test_readFrames
(
capture
,
30
,
&
frame640x480
);
EXPECT_EQ
(
640
,
frame640x480
.
cols
);
EXPECT_EQ
(
480
,
frame640x480
.
rows
);
EXPECT_TRUE
(
capture
.
set
(
CAP_PROP_FRAME_WIDTH
,
1280
));
EXPECT_TRUE
(
capture
.
set
(
CAP_PROP_FRAME_HEIGHT
,
720
));
std
::
cout
<<
"Frame width: "
<<
capture
.
get
(
CAP_PROP_FRAME_WIDTH
)
<<
std
::
endl
;
std
::
cout
<<
" height: "
<<
capture
.
get
(
CAP_PROP_FRAME_HEIGHT
)
<<
std
::
endl
;
std
::
cout
<<
"Capturing FPS: "
<<
capture
.
get
(
CAP_PROP_FPS
)
<<
std
::
endl
;
Mat
frame1280x720
;
test_readFrames
(
capture
,
30
,
&
frame1280x720
);
EXPECT_EQ
(
1280
,
frame1280x720
.
cols
);
EXPECT_EQ
(
720
,
frame1280x720
.
rows
);
capture
.
release
();
}
}}
// namespace
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