webrtcsrc

webrtcsrc is the source counterpart of the webrtcsink element and can be used to receive streams from it, it can also be used to easily playback WebRTC streams coming from a web browser.

To try the element, you should run webrtcsink as described in its documentation, finding its peer-id (in the signalling server logs for example) and then run:

gst-launch-1.0 webrtcsrc signaller::producer-peer-id=<webrtcsink-peer-id> ! videoconvert ! autovideosink

or directly using playbin3:

gst-launch-1.0 playbin3 uri="gstwebrtc://localhost:8443?peer-id=<webrtcsink-peer-id>"

Decoding

To be able to precisely negotiate the WebRTC SDP, webrtcsrc is able to decode streams. During SDP negotiation we expose our pads based on the peer offer and right after query caps to see what downstream supports. In practice in uridecodebinX or playbinX, decoding will happen in decodebinX but for the case where a videoconvert is placed after a video_XX pad, decoding will happen inside webrtcsrc.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBin
                    ╰──GstBaseWebRTCSrc
                        ╰──webrtcsrc

Implemented interfaces

Factory details

Authors: – Thibault Saunier

Classification: – Source/Network/WebRTC

Rank – primary

Plugin – rswebrtc

Package – gst-plugin-webrtc

Pad Templates

audio_%s_%u

audio/x-raw(ANY):
application/x-rtp:
audio/x-opus:

Presence – sometimes

Direction – src

Object type – GstWebRTCSrcPad

audio_%u

audio/x-raw(ANY):
application/x-rtp:
audio/x-opus:

Presence – sometimes

Direction – src

Object type – GstWebRTCSrcPad

video_%s_%u

video/x-raw(ANY):
application/x-rtp:
video/x-vp8:
video/x-h264:
video/x-vp9:
video/x-h265:
video/x-av1:

Presence – sometimes

Direction – src

Object type – GstWebRTCSrcPad

video_%u

video/x-raw(ANY):
application/x-rtp:
video/x-vp8:
video/x-h264:
video/x-vp9:
video/x-h265:
video/x-av1:

Presence – sometimes

Direction – src

Object type – GstWebRTCSrcPad

Properties

connect-to-first-producer 

“connect-to-first-producer” gboolean

When enabled, automatically connect to the first peer that becomes available if no 'peer-id' is specified.

Flags : Read / Write

Default value : false

GstWebRTCSrcPad 

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstPad
                ╰──GstProxyPad
                    ╰──GstGhostPad
                        ╰──GstWebRTCSrcPad

Properties

msid 

“msid” gchararray

Remote MediaStream ID in use for this pad

Flags : Read

Default value : NULL

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