Deepstream 无法使用 tee 并使用 splitmuxsink 保存视频

Question

unable to use tee and use splitmuxsink to save video,below is the code and i get linking error while running the below snippet. im using tee to have 2-sinks ( video save and RTSP streaming)

 nvvidconv_c = "convertor_%u" %index print("Creating nvvidconv \n ") nvvidconv = Gst.ElementFactory.make("nvvideoconvert", nvvidconv_c) if not nvvidconv: sys.stderr.write(" Unable to create nvvidconv %u\n", i) caps_c = "caps1_%u" %index caps1 = Gst.ElementFactory.make("capsfilter", caps_c) caps1.set_property("caps", Gst.Caps.from_string("video/x-raw(memory:NVMM), format=I420")) # Make the encoder encoder_c = "encoder1_%u" %index print("Creating H264 Encoder") encoder1 = Gst.ElementFactory.make("nvv4l2h264enc", encoder_c) if not encoder1: sys.stderr.write(" Unable to create encoder") encoder1.set_property('bitrate', bitrate) caps_c = "cap2s_%u" %index caps2 = Gst.ElementFactory.make("capsfilter", caps_c) # caps1.set_property("caps", Gst.Caps.from_string("video/x-raw(memory:NVMM), format=I420")) caps2.set_property("caps", Gst.Caps.from_string("video/x-raw, format=I420")) encoder_c = "encoder2_%u" %index print("Creating H264 Encoder") # encoder2 = Gst.ElementFactory.make("nvv4l2h264enc", encoder_c) encoder2 = Gst.ElementFactory.make("x264enc", encoder_c) if not encoder2: sys.stderr.write(" Unable to create encoder") encoder2.set_property('bitrate', bitrate) # Make the payload-encode video into RTP packets rtppay_c = "rtppay_%u" %index rtppay = Gst.ElementFactory.make("rtph264pay", rtppay_c) print("Creating H264 rtppay") if not rtppay: sys.stderr.write(" Unable to create rtppay") # Make the UDP sink updsink_port_num = udp_sink_port_num updsink_port_num += index print("\n updsink_port_num = %u", updsink_port_num) udpsink_c = "udpsink_%u" %index sink = Gst.ElementFactory.make("udpsink", udpsink_c) if not sink: sys.stderr.write(" Unable to create udpsink") sink.set_property('host', '224.224.255.255') sink.set_property('port', updsink_port_num) sink.set_property('async', False) sink.set_property('sync', 1) sink.set_property("qos",0) tee=Gst.ElementFactory.make("tee", "nvsink-tee") if not tee: sys.stderr.write(" Unable to create tee \n") tee_msg_pad=tee.get_request_pad('src_%u') tee_render_pad=tee.get_request_pad("src_%u") if not tee_msg_pad or not tee_render_pad: sys.stderr.write("Unable to get request pads\n") queue1 = Gst.ElementFactory.make("queue", "nvtee-que1") if not queue1: sys.stderr.write(" Unable to create queue1 \n") queue2 = Gst.ElementFactory.make("queue", "nvtee-que2") if not queue2: sys.stderr.write(" Unable to create queue2 \n") splitmuxsink_c = "splitmuxsink_%u" %index print("Creating splitmuxsink \n ") splitmuxsink = Gst.ElementFactory.make("splitmuxsink", splitmuxsink_c) # splitmuxsink.set_property('muxer', Gst.ElementFactory.make('matroskamux')) splitmuxsink.set_property('muxer', Gst.ElementFactory.make('qtmux')) splitmuxsink.set_property('location', '/home/ubuntu/sriharsha/videos/testing/segment_%09d.mkv') splitmuxsink.set_property('max-size-time', 10000000000) #10s segments sink_pad = queue1.get_static_pad("sink") tee_msg_pad = tee.get_request_pad('src_%u') tee_render_pad = tee.get_request_pad("src_%u") if not tee_msg_pad or not tee_render_pad: sys.stderr.write("Unable to get request pads\n") tee_msg_pad.link(sink_pad) sink_pad = queue2.get_static_pad("sink") tee_render_pad.link(sink_pad) try: Gst.Bin.add(nbin, queue, nvvidconv_pre, nvosd, nvvidconv, caps1, encoder1, caps2, encoder2, queue1, queue2,tee, splitmuxsink,

rtppay, sink) except Exception as e: print("error in gst bin add", e)

 #link queue.link(nvvidconv_pre) nvvidconv_pre.link(nvosd) nvosd.link(nvvidconv) nvvidconv.link(tee) queue2.link(caps2) caps2.link(encoder2) encoder2.link(encoder2) encoder2.link(splitmuxsink) queue1.link(caps1) caps1.link(encoder1) encoder1.link(rtppay) rtppay.link(sink) #ghostpad pad = queue.get_static_pad("sink") ghost_pad = Gst.GhostPad.new("sink", pad) nbin.add_pad(ghost_pad)

and i get the below error:

Error: gst-stream-error-quark: Internal data stream error. (1): gstqueue.c(988): gst_queue_handle_sink_event (): /GstPipeline:pipeline0/GstBin:sink-bin-00/GstQueue:queue_sink_0: streaming stopped, reason not-linked (-1)

Answer 1

Not sure for your case, but with after tee splitmuxsink might need to have async-handling property enabled.