Hey
I wanted to use Opencv+Gstreamer with msvc (compiled in vs2017) in c++ and with QT ( enabling: with_qt support in the cmake step). All the compilation and installing processes were fine without any problem, but when i try to do a simple qt project just openning a rtsp camera with the pipeline and gstreamer support in the videocapture does not work. I already tried with a lot of different pipelines, different versions of Opencv (4.0, 4.1, 4.5) but still nothing , there’s not errors at all, the videocapture just do not open the pipeline, in fact there are not much information about videocapture-rtsp-gstreamer-c++ , i’m starting to think that’s not possible, there are just some examples with the videowriter-gstreamer and python
I already tried with all these combinations of pipelines which are the most commons from what i investigated:
String ipRtsp=“rtsp://127.0.0.1:8554/test “;
// String pipelineCam=“rtspsrc location=”+ipRtsp+”! decodebin ! videoconvert ! appsink max-buffers=1 drop=true”;
// String pipelineCam=ipRtsp;
// String pipelineCam=“rtspsrc location=”+ipRtsp+“latency=10 ! rtph264depay ! h264parse ! omxh264dec ! videoconvert ! appsink”;
// String pipelineCam=“rtspsrc location=”+ipRtsp+“latency=10 ! rtph264depay ! h264parse ! decodebin ! autovideoconvert ! autovideosink”;
// String pipelineCam=“rtspsrc location=”+ipRtsp+“latency=60 ! rtph264depay ! h264parse ! decodebin ! videoconvert ! appsink”;
// String pipelineCam=“rtspsrc location=”+ipRtsp+“! decodebin ! videoconvert ! appsink”;//should work this one
// String pipelineCam=“uridecodebin uri=”+ipRtsp+“latency=20 ! videoconvert ! appsink”;
String pipelineCam=“rtspsrc location=”+ipRtsp+“! decodebin ! videoconvert ! appsink”;
// String pipelineCam=“rtspsrc location=”+ipRtsp+
// "! rtph264depay ! h264parse ! decodebin ! autovideoconvert ! autovideosink ";
mVideo.open(pipelineCam, cv::CAP_GSTREAMER);
Opencv stopped supporting videocapture-gstreamer-rtsp in recent versions?
Any idea?
thanks in advance