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Update cap_gstreamer.cpp

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fixed call open(int id) failed
This commit is contained in:
zarelaky 2018-08-06 22:11:23 +08:00
parent 4fe900c399
commit 715f23127c
1 changed files with 3 additions and 1 deletions
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4
modules/videoio/src/cap_gstreamer.cpp
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@ -613,10 +613,12 @@ int GStreamerCapture::getCaptureDomain() { return CAP_GSTREAMER; }
*/
bool GStreamerCapture::open(int id)
{
gst_initializer::init();
if (!is_gst_element_exists("v4l2src"))
return false;
std::ostringstream desc;
desc << "v4l2src device-name=/dev/video" << id
desc << "v4l2src device=/dev/video" << id
<< " ! " << COLOR_ELEM
<< " ! appsink";
return open(desc.str());