When I run gst-launch-1.0 rtspsrc location='rtspt://localhost:8554/mystream', the output suggests that two streams are being established:
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtspt://localhost:8554/mystream
Progress: (open) Retrieving server options
Progress: (open) Retrieving media info
Progress: (request) SETUP stream 0
Progress: (request) SETUP stream 1
Progress: (open) Opened Stream
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Progress: (request) Sending PLAY request
Progress: (request) Sending PLAY request
Progress: (request) Sent PLAY request
Does anyone know why two streams (stream 0 and stream 1) are needed? Do the two streams carry different data? Is there any way to use just one stream?
One stream is for video and one stream is for audio. They are not muxed together, but each of them has their own RTP stream.