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gstreamer-cheat-sheet/srt.md
Matthew Clark 5bf6e94f79 Fix Markdown
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SRT (GStreamer command-line cheat sheet)

SRT has a client-server relationship. One side must be the server, the other the client. The server can either be the side that is sending the audio/video (pushing) or the side that is receiving (pulling). The server must have started exist before the client.

NOTE: THIS IS FOR GSTREAMER 1.14; IT HAS CHANGED IN 1.16.

Server sending the AV

Create a sender server like this:

gst-launch-1.0 videotestsrc ! video/x-raw, height=360, width=640 ! videoconvert ! x264enc tune=zerolatency ! video/x-h264, profile=high ! mpegtsmux ! srtserversink uri=srt://127.0.0.1:8888/

And create a receiver client like this:

gst-launch-1.0 -v srtclientsrc uri="srt://127.0.0.1:8888" ! decodebin ! autovideosink

Server receiving the AV

To have the server receiving, rather than sending, swap 'srtclientsrc' for 'srcserversrc'. Likewise, to have the client sending rather than receiving, swap 'srtserversink' for 'srtclientsink'.

Create a receiver server like this:

gst-launch-1.0 -v srtserversrc uri="srt://127.0.0.1:8888" ! decodebin ! autovideosink

And a sender client like this:

gst-launch-1.0 videotestsrc ! video/x-raw, height=360, width=640 ! videoconvert ! x264enc tune=zerolatency ! video/x-h264, profile=high ! mpegtsmux ! srtclientsink uri="srt://127.0.0.1:8888/"