sdpdemux

sdpdemux currently understands SDP as the input format of the session description. For each stream listed in the SDP a new stream_%u pad will be created with caps derived from the SDP media description. This is a caps of mime type "application/x-rtp" that can be connected to any available RTP depayloader element.

sdpdemux will internally instantiate an RTP session manager element that will handle the RTCP messages to and from the server, jitter removal, packet reordering along with providing a clock for the pipeline.

sdpdemux acts like a live element and will therefore only generate data in the PLAYING state.

Example launch line

 gst-launch-1.0 souphttpsrc location=http://some.server/session.sdp ! sdpdemux ! fakesink

Establish a connection to an HTTP server that contains an SDP session description that gets parsed by sdpdemux and send the raw RTP packets to a fakesink.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBin
                    ╰──sdpdemux

Implemented interfaces

Factory details

Authors: – Wim Taymans

Classification: – Codec/Demuxer/Network/RTP

Rank – none

Plugin – sdpelem

Package – GStreamer Bad Plug-ins

Pad Templates

sink

application/sdp:

Presence – always

Direction – sink

Object type – GstPad

stream_%u

application/x-rtp:

Presence – sometimes

Direction – src

Object type – GstPad

Properties

debug 

“debug” gboolean

Dump request and response messages to stdout

Flags : Read / Write / Construct

Default value : false

latency 

“latency” guint

Amount of ms to buffer

Flags : Read / Write / Construct

Default value : 200

redirect 

“redirect” gboolean

Sends a redirection message instead of using a custom session element

Flags : Read / Write / Construct

Default value : true

timeout 

“timeout” guint64

Fail transport after UDP timeout microseconds (0 = disabled)

Flags : Read / Write / Construct

Default value : 10000000

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