rtpptdemux

rtpptdemux acts as a demuxer for RTP packets based on the payload type of the packets. Its main purpose is to allow an application to easily receive and decode an RTP stream with multiple payload types.

For each payload type that is detected, a new pad will be created and the new-payload-type signal will be emitted. When the payload for the RTP stream changes, the payload-type-change signal will be emitted.

The element will try to set complete and unique application/x-rtp caps on the output pads based on the result of the request-pt-map signal.

Example pipelines

 gst-launch-1.0 udpsrc caps="application/x-rtp" ! rtpptdemux ! fakesink

Takes an RTP stream and send the RTP packets with the first detected payload type to fakesink, discarding the other payload types.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──rtpptdemux

Factory details

Authors: – Kai Vehmanen

Classification: – Demux/Network/RTP

Rank – none

Plugin – gstrtpmanager

Package – GStreamer Good Plug-ins git

Pad Templates

sink

application/x-rtp:

Presence – always

Direction – sink

src_%u

application/x-rtp:
        payload: [ 0, 255 ]

Presence – sometimes

Direction – src

Signals

clear-pt-map 

clear_pt_map_callback (GstElement * demux,
                       gpointer * udata)
def clear_pt_map_callback (demux, udata):
    #python callback for the 'clear-pt-map' signal
function clear_pt_map_callback(demux: GstElement * demux, udata: gpointer * udata): {
    // javascript callback for the 'clear-pt-map' signal
}

The application can call this signal to instruct the element to discard the currently cached payload type map.

Parameters:

demux –

the object which received the signal

udata –
No description available

new-payload-type 

new_payload_type_callback (GstElement * demux,
                           guint * pt,
                           GstPad * pad,
                           gpointer * udata)
def new_payload_type_callback (demux, pt, pad, udata):
    #python callback for the 'new-payload-type' signal
function new_payload_type_callback(demux: GstElement * demux, pt: guint * pt, pad: GstPad * pad, udata: gpointer * udata): {
    // javascript callback for the 'new-payload-type' signal
}

Emitted when a new payload type pad has been created in demux.

Parameters:

demux –

the object which received the signal

pt –

the payload type

pad –

the pad with the new payload

udata –
No description available

no-more-pads 

no_more_pads_callback (GstElement * param_0,
                       gpointer * udata)
def no_more_pads_callback (param_0, udata):
    #python callback for the 'no-more-pads' signal
function no_more_pads_callback(param_0: GstElement * param_0, udata: gpointer * udata): {
    // javascript callback for the 'no-more-pads' signal
}

Parameters:

param_0 –
No description available
udata –
No description available

pad-added 

pad_added_callback (GstElement * param_0,
                    GstPad * param_1,
                    gpointer * udata)
def pad_added_callback (param_0, param_1, udata):
    #python callback for the 'pad-added' signal
function pad_added_callback(param_0: GstElement * param_0, param_1: GstPad * param_1, udata: gpointer * udata): {
    // javascript callback for the 'pad-added' signal
}

Parameters:

param_0 –
No description available
param_1 –
No description available
udata –
No description available

pad-removed 

pad_removed_callback (GstElement * param_0,
                      GstPad * param_1,
                      gpointer * udata)
def pad_removed_callback (param_0, param_1, udata):
    #python callback for the 'pad-removed' signal
function pad_removed_callback(param_0: GstElement * param_0, param_1: GstPad * param_1, udata: gpointer * udata): {
    // javascript callback for the 'pad-removed' signal
}

Parameters:

param_0 –
No description available
param_1 –
No description available
udata –
No description available

payload-type-change 

payload_type_change_callback (GstElement * demux,
                              guint * pt,
                              gpointer * udata)
def payload_type_change_callback (demux, pt, udata):
    #python callback for the 'payload-type-change' signal
function payload_type_change_callback(demux: GstElement * demux, pt: guint * pt, udata: gpointer * udata): {
    // javascript callback for the 'payload-type-change' signal
}

Emitted when the payload type changed.

Parameters:

demux –

the object which received the signal

pt –

the new payload type

udata –
No description available

request-pt-map 

GstCaps *
request_pt_map_callback (GstElement * demux,
                         guint * pt,
                         gpointer * udata)
def request_pt_map_callback (demux, pt, udata):
    #python callback for the 'request-pt-map' signal
function request_pt_map_callback(demux: GstElement * demux, pt: guint * pt, udata: gpointer * udata): {
    // javascript callback for the 'request-pt-map' signal
}

Request the payload type as GstCaps for pt.

Parameters:

demux –

the object which received the signal

pt –

the payload type

udata –
No description available
Returns ( GstCaps * ) –
No description available

Properties

ignored-payload-types 

“ignored-payload-types” GstValueArray*

If specified, packets with an ignored payload type will be dropped, instead of causing a new pad to be exposed for these to be pushed on.

This is for example useful to drop FEC protection packets, as they need to go through the rtpjitterbuffer, but cease to be useful past that point, rtpbin will make use of this property for that purpose.

Flags : Read / Write

name 

“name” gchararray *

The name of the object

Flags : Read / Write / Construct

Default value : NULL

parent 

“parent” GstObject *

The parent of the object

Flags : Read / Write

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