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7cefb52fda
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37 Commits

Author SHA1 Message Date
Maksim Shabunin
7cefb52fda V4L: do not return frame if it can not be retrieved 2017-05-23 18:03:17 +03:00
kvaghel1
6fd9edc50f Fix frame timestamp in VideoCapture::get 2017-05-22 21:22:35 -04:00
Pavel Rojtberg
d92d82d194 cap_v4l: SetProperty - do not return false while setting video size 2017-04-04 15:07:02 +02:00
Jake Kesinger
bd50553149 videoio: Fix for valgrind warning in icvGetPropertyCAM_V4L 
https://github.com/opencv/opencv/issues/7380
 2016-10-18 14:18:35 -04:00
Guillaume Jacob
df2b591896 videoio: fix segfault if CONVERT_RGB is false (issue #7465) 2016-10-17 23:01:30 +02:00
Gregory Kramida
0d626c8fef v4l2 backend: Y16 default behavior fixed & FOURCC setting added 
1) Cameras started with Y16 (V4L2_PIX_FMT_Y16) format via v4l2 backend will now exhibit default camera behavior, i.e. convert the 16-bit image to BGR as with all other formats. 16-bit 1-channel output will now only be produced for Y16 if CV_CAP_PROP_CONVERT_RGB is set to "false" using VideoCap::set method.
2) v4l2 videoio backend now supports setting CV_CAP_PROP_FOURCC explicitly (icvSetPropertyCAM_V4L function in cap_v4l.cpp), allowing users to manually set the codec on cameras that support multiple codecs.
 2016-09-15 21:02:24 -04:00
stbnps
a4a6ee34bf Added support for V4L2_PIX_FMT_Y16 2016-09-15 11:06:15 -04:00
Alexander Alekhin
ddc0b42bc3 migration: github.com/opencv/opencv 2016-07-12 12:51:12 +03:00
Alexander Alekhin
289b6ff2a5 Merge pull request #6393 from paroj:v4l_exposure 2016-04-18 15:14:21 +00:00
Alexander Alekhin
2b29db860c Merge pull request #6391 from virtuald:v4l-device-name 2016-04-12 12:57:21 +00:00
Pavel Rojtberg
91678ff828 cap_v4l: allow manually controlling exposure 2016-04-12 12:10:54 +02:00
Dustin Spicuzza
e489f29d0f v4l/libv4l: allow opening device by name 
- Allows using non-default device names such as /dev/v4l/by-path/pci-0000:00:1d.0-usb-0:1.1:1.0-video-index0
 2016-04-12 01:25:34 -04:00
Lucas Solomon
d2d5d32fe0 remove trailing whitespace 2016-03-22 22:31:16 -07:00
Lucas Solomon
688b4d9d7a return 0 from VideoCapture::read() when cannot connect to camera 2016-03-22 19:03:28 -07:00
Krishnaraj Bhat
9b8013d193 gcc6: fix misleading indentation warning 
cosmetic changes to fix this warning.
real bugs not found
 2016-03-07 17:06:16 +05:30
Pavel Rojtberg
955f489621 make CV_CAP_PROP_FORMAT consider the current channel count 2015-11-08 17:01:03 +01:00
Pavel Rojtberg
05f52b697f replace uyvy_to_rgb24 by tested and conformant cvtColor 2015-11-08 17:01:02 +01:00
Pavel Rojtberg
ad68b79630 replace yuv420p_to_rgb24 by tested and conformant cvtColor 
Conversion was not ITU 601 conformant. Also add YVU420 format to allowed
zero copy access.
 2015-11-08 17:01:02 +01:00
Pavel Rojtberg
8527d895bb replace rgb24_to_rgb24 by tested cvtColor 
internally using ipp this conversion is now roughly 2x faster.
also add RGB/ BGR formats to allowed zero copy access.
 2015-11-08 17:01:02 +01:00
Pavel Rojtberg
f50817120e v4l: remove needless CvCaptureCAM_V4L_CPP wrapper 
possible source of memory leaks and unneeded complexity
 2015-11-08 17:01:02 +01:00
Pavel Rojtberg
93d6e800b6 v4l: Fixed memory leaks and inconsistent status return values 
by updating to c++ coding conventions

 - const correctness
 - use bool as return value
 - use explicit initialization instead of CLEAR macro/ memset
 - use cv namespace
 2015-11-08 17:01:02 +01:00
Pavel Rojtberg
a581ddd896 remove support of Video4Linux1 API 
the last kernel that allowed compiling this code was 2.6.37 which was
released almost 5 Years ago. So probably it does not get much testing
any more. Furthermore even back then one was better off using the V4L2
API.

The only change touching currently used code is the removal of the
global V4L2_SUPPORT variable.
 2015-11-08 17:01:02 +01:00
Pavel Rojtberg
eac5cab5cb cap_v4l: implement PROP_CONVERT_RGB 
allows disabling automatic conversion to RGB for certain formats. If
conversion is disabled the returned image just points to the underlying
buffer, so no memcpy is performed.

Note that we do not check image size in retrieve frame any more as it
can not possibly while the device is streaming.
Furthermore this code was disabled altogether by the wrong ifdef in the
previous commit.
 2015-10-18 14:14:20 +02:00
Pavel Rojtberg
5e62e71b13 fix wrong ifdef bracketing 
in the case of HAVE_CAMV4L2 && !HAVE_CAMV4L there was no body for the if
statement.
 2015-10-18 14:13:44 +02:00
Pavel Rojtberg
838947bb8e replace custom yuyv_to_rgb24 implementation by cvtColor 2015-10-18 13:51:20 +02:00
Pavel Rojtberg
80747088e3 avoid needless copies during mjpeg decoding 2015-10-18 13:51:20 +02:00
Pavel Rojtberg
56dd7eda0d remove additional V4L2 pixelformat defines 
they are upstream since at least linux 2.6.8 (10 Years)
http://lxr.oss.org.cn/ident?v=2.6.8&i=V4L2_PIX_FMT_SBGGR8
 2015-10-18 13:51:20 +02:00
Pavel Rojtberg
588eba3b37 simplify autosetup_capture_mode_v4l2 by using a for loop 2015-10-18 13:51:20 +02:00
Pavel Rojtberg
5525cc4d09 implement CAP_PROP_MODE, CAP_PROP_FOURCC and CAP_PROP_FORMAT 
do not use a custom enum instead of the V4L2 fourcc defines for palette.
This way we can easily implement CAP_PROP_FOURCC and CAP_PROP_MODE.
 2015-10-18 13:51:20 +02:00
Pavel Rojtberg
c0fe522c9d allow changing FPS and Image Size using V4L2 
use logic similar to cap_libv4l: replace icvSetVideoSize by v4l2_reset
as it was not used for V4L1, the actual frame format is negotiated in
try_palette_v4l2 and the stream has to restarted anyway.
 2015-10-18 13:51:16 +02:00
Pavel Rojtberg
18034a5138 allow icvGetPropertyCAM_V4L to return zero 
now icvGetPropertyCAM_V4L behaves the same as in cap_libv4l. This also
fixes passing boolean values.
 2015-10-18 13:48:15 +02:00
Pavel Rojtberg
f7981a8ae8 support setting focus and autofocus with V4L2 
also refactor property range handling and opencv property to V4L2
translation.
 2015-10-18 12:56:09 +02:00
alexander barakin (aka sash-kan)
0d821f04fd fix icvCloseCAM_V4L wrong order of code blocks 
this patch fixes bug http://code.opencv.org/issues/2822 .
based on disussion (in russian):
http://ru.stackoverflow.com/a/428398/178576

Signed-off-by: alexander barakin (aka sash-kan) <alex@barak.in>
 2015-06-06 14:41:00 +03:00
Dikay900
7ca0557b40 typos in comments 2015-05-23 17:36:45 +02:00
Artur Wieczorek
854a722c70 Implement VideoCapture::get, CvCapture::getProperty, IVideoCapture::getProperty as constant methods. 2014-12-16 16:08:22 +01:00
Yusuke Suzuki
9cd08c662c add V4L2_PIX_FMT_RGB24 convert code 2014-11-04 15:21:30 +09:00
vbystricky
d58f736935 Split highgui module to videoio and highgui 2014-07-14 23:16:47 +04:00