Hello, All
I’d like to get streaming from usbcam, and sink it into rtsp.
I read the code of “deepstream_test_1_usb.py” under usbcam and “deepstream_test1_rstp_out.py” under deepstream-test1-rtsp-out, and mixed the code together.
The main flow of the processing is as below:
source = Gst.ElementFactory.make(“v4l2src”, “usb-cam-source”)
decoder = Gst.ElementFactory.make(“nvv4l2decoder”, “nvv4l2-decoder”)
vidconvsrc = Gst.ElementFactory.make(“videoconvert”, “convertor_src1”)
nvvidconvsrc = Gst.ElementFactory.make(“nvvideoconvert”, “convertor_src2”)
caps_vidconvsrc = Gst.ElementFactory.make(“capsfilter”, “nvmm_caps”)
decoder = Gst.ElementFactory.make(“nvv4l2decoder”, “nvv4l2-decoder”)
streammux = Gst.ElementFactory.make(“nvstreammux”, “Stream-muxer”)
pgie = Gst.ElementFactory.make(“nvinfer”, “primary-inference”)
nvvidconv = Gst.ElementFactory.make(“nvvideoconvert”, “convertor”)
nvosd = Gst.ElementFactory.make(“nvdsosd”, “onscreendisplay”)
nvvidconv_postosd = Gst.ElementFactory.make(“nvvideoconvert”, “convertor_postosd”)
caps = Gst.ElementFactory.make(“capsfilter”, “filter”)
encoder = Gst.ElementFactory.make(“nvv4l2h264enc”, “encoder”)
rtppay = Gst.ElementFactory.make(“rtph264pay”, “rtppay”)
sink = Gst.ElementFactory.make(“udpsink”, “udpsink”)
…
source.link(decoder)
decoder.link(vidconvsrc)
vidconvsrc.link(nvvidconvsrc)
nvvidconvsrc.link(caps_vidconvsrc)
sinkpad = streammux.get_request_pad("sink_0")
if not sinkpad:
sys.stderr.write(" Unable to get the sink pad of streammux \n")
srcpad = caps_vidconvsrc.get_static_pad("src")
if not srcpad:
sys.stderr.write(" Unable to get source pad of decoder \n")
srcpad.link(sinkpad)
streammux.link(pgie)
pgie.link(nvvidconv)
nvvidconv.link(nvosd)
nvosd.link(nvvidconv_postosd)
nvvidconv_postosd.link(caps)
caps.link(encoder)
encoder.link(rtppay)
rtppay.link(sink)
The above flow can pass and run, but the weird thing is that the camera will get stuck at the first frame and as I move the camera, I cannot see the video get updated and be pushed to the rtsp server.
Where did I do wrong?
BTW, I am running on deepstream-sdk 5.0 on jetson nano
Thanks.