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Description
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
1 |
gst-launch-1.0 udpsrc caps="application/x-rtp" ! rtpptdemux ! fakesink |
Synopsis
Element Information
plugin |
rtpmanager |
author |
Kai Vehmanen <kai.vehmanen@nokia.com> |
class |
Demux/Network/RTP |
Property Details
The “ignored-payload-types” property
“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 GstRtpJitterBuffer, but cease to be useful past that point, GstRtpBin will make use of this property for that purpose.
Flags: Read / Write
Since: 1.14
Signal Details
The “clear-pt-map” signal
void user_function (GstRtpPtDemux *demux, gpointer user_data)
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 |
|
user_data |
user data set when the signal handler was connected. |
Flags: Action
The “new-payload-type” signal
void user_function (GstRtpPtDemux *demux, guint pt, GstPad *pad, gpointer user_data)
Emited 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 |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
The “payload-type-change” signal
void user_function (GstRtpPtDemux *demux, guint pt, gpointer user_data)
Emited when the payload type changed.
Parameters
demux |
the object which received the signal |
|
pt |
the new payload type |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
The “request-pt-map” signal
GstCaps* user_function (GstRtpPtDemux *demux, guint pt, gpointer user_data)
Request the payload type as GstCaps for pt
.
Parameters
demux |
the object which received the signal |
|
pt |
the payload type |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last