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@@ -178,6 +178,22 @@ Which can be received on another device over the network with: gst-launch-1.0 tcpclientsrc host=$DEVICE_IP port=5000 ! \ multipartdemux ! jpegdec ! autovideosink +The GStreamer element also supports multiple streams. This is achieved by +requesting additional source pads. Downstream caps filters can be used +to choose specific parameters like resolution and pixel format. The pad +property ``stream-role`` can be used to select a role. + +The following example displays a 640x480 view finder while streaming JPEG +encoded 800x600 video. You can use the receiver pipeline above to view the +remote stream from another device. + +.. code:: + + gst-launch-1.0 libcamerasrc name=cs src::stream-role=view-finder src_0::stream-role=video-recording \ + cs.src ! queue ! video/x-raw,width=640,height=480 ! videoconvert ! autovideosink \ + cs.src_0 ! queue ! video/x-raw,width=800,height=600 ! videoconvert ! \ + jpegenc ! multipartmux ! tcpserversink host=0.0.0.0 port=5000 + .. section-end-getting-started Troubleshooting |