rtpmux: GStreamer Good Plugins 1.0 Plugins Reference Manual

## rtpmux rtpmux |

## Properties

guint | seqnum | Read
gint | seqnum-offset | Read / Write
guint | ssrc | Read / Write
gint | timestamp-offset | Read / Write

## Types and Values

struct | GstRTPMux

## Object Hierarchy

        GObject
        ╰── GInitiallyUnowned
            ╰── GstObject
                ╰── GstElement
                    ╰── GstRTPMux
                        ╰── GstRTPDTMFMux

## Description

The rtp muxer takes multiple RTP streams having the same clock-rate and muxes into a single stream with a single SSRC.

### Example pipelines

    1
    2
    3
    4
    5
    6
    gst-launch-1.0 rtpmux name=mux ! udpsink host=127.0.0.1 port=8888        \
                 alsasrc ! alawenc ! rtppcmapay !                        \
                 application/x-rtp, payload=8, rate=8000 ! mux.sink_0    \
                 audiotestsrc is-live=1 !                                \
                 mulawenc ! rtppcmupay !                                 \
                 application/x-rtp, payload=0, rate=8000 ! mux.sink_1

In this example, an audio stream is captured from ALSA and another is generated, both are encoded into different payload types and muxed together so they can be sent on the same port.

## Synopsis

### Element Information

plugin | rtpmanager
author | Zeeshan Ali <first.last@nokia.com>
class | Codec/Muxer

### Element Pads

name | sink_%u
direction | sink
presence | request
details | application/x-rtp

name | src
direction | source
presence | always
details | application/x-rtp

## Functions

## Types and Values

### struct GstRTPMux

    struct GstRTPMux;

The opaque GstRTPMux structure.

## Property Details

### The `“seqnum”` property

      “seqnum”                   guint

The RTP sequence number of the last processed packet.

Flags: Read

Default value: 0

### The `“seqnum-offset”` property

      “seqnum-offset”            gint

Offset to add to all outgoing seqnum (-1 = random).

Flags: Read / Write

Allowed values: >= G_MAXULONG

Default value: -1

### The `“ssrc”` property

      “ssrc”                     guint

The SSRC of the packets (default == random).

Flags: Read / Write

Default value: 4294967295

### The `“timestamp-offset”` property

      “timestamp-offset”         gint

Offset to add to all outgoing timestamps (-1 = random).

Flags: Read / Write

Allowed values: >= G_MAXULONG

Default value: -1

## See Also

rtpdtmfmux