GstWebRTC - PubNub Audio Examples - x86

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This page presents some GstWebRTC audio examples using PubNub.

Opus

Example

In this example we use two webrtcbins, each send an audio stream, and receives each other audio stream.

x264

It seems that browsers do not get along with x264 because of SEI NAL units sent with the stream. As a workaround, we set key-int-max=1 and avoid the SEI insertions.

Send-Receive Pipeline

USER_CHANNEL=123
PEER_CHANNEL=123peer
gst-launch-1.0 webrtcbin rtcp-mux=true start-call=true signaler::user-channel=$USER_CHANNEL signaler::peer-channel=$PEER_CHANNEL name=web \
audiotestsrc is-live=true ! opusenc ! rtpopuspay ! web.audio_sink \
web.audio_src ! rtpopusdepay ! opusdec ! autoaudiosink

Send-Receive Pipeline

USER_CHANNEL=123peer
PEER_CHANNEL=123
gst-launch-1.0 webrtcbin rtcp-mux=true start-call=false signaler::user-channel=$USER_CHANNEL signaler::peer-channel=$PEER_CHANNEL name=web \
audiotestsrc is-live=true ! opusenc ! rtpopuspay ! web.audio_sink \
web.audio_src ! rtpopusdepay ! opusdec ! autoaudiosink

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