# jackaudiosink

A Sink that outputs data to Jack ports.

It will create N Jack ports named out_<name>_<num> where <name> is the element name and <num> is starting from 1. Each port corresponds to a gstreamer channel.

The samplerate as exposed on the caps is always the same as the samplerate of the jack server.

When the connect property is set to auto, this element will try to connect each output port to a random physical jack input pin. In this mode, the sink will expose the number of physical channels on its pad caps.

When the connect property is set to none, the element will accept any number of input channels and will create (but not connect) an output port for each channel.

The element will generate an error when the Jack server is shut down when it was PAUSED or PLAYING. This element does not support dynamic rate and buffer size changes at runtime.

## Example launch line

     gst-launch-1.0 audiotestsrc ! jackaudiosink

Play a sine wave to using jack.

## Hierarchy

    GObject
        ╰──GInitiallyUnowned
            ╰──GstObject
                ╰──GstElement
                    ╰──GstBaseSink
                        ╰──GstAudioBaseSink
                            ╰──jackaudiosink

## Factory details

Authors: – Wim Taymans

Classification: – `Sink/Audio`

Rank – primary

Plugin – jack

Package – GStreamer Good Plug-ins

## Pad Templates

### `sink`

    audio/x-raw:
             format: F32LE
             layout: interleaved
               rate: [ 1, 2147483647 ]
           channels: [ 1, 2147483647 ]

Presence – always

Direction – sink

Object type – GstPad

## Properties

### client

    “client” JackClient *

Handle for jack client

Flags : Read / Write

### client-name

    “client-name” gchararray

The client name to use.

Flags : Read / Write

Default value : NULL

### connect

    “connect” GstJackConnect *

Specify how the output ports will be connected

Flags : Read / Write

Default value : auto (1)

### low-latency

    “low-latency” gboolean

Optimize all settings for lowest latency. When enabled, buffer-time and latency-time will be ignored.

Flags : Read / Write

Default value : false

Since : 1.20

### port-names

    “port-names” gchararray

Comma-separated list of port name including "client_name:" prefix

Flags : Read / Write

Default value : NULL

Since : 1.20

### port-pattern

    “port-pattern” gchararray

autoconnect to ports matching pattern, when NULL connect to physical ports

Flags : Read / Write

Default value : NULL

Since : 1.6

### server

    “server” gchararray

The Jack server to connect to (NULL = default)

Flags : Read / Write

Default value : NULL

### transport

    “transport” GstJackTransport *

The jack transport behaviour for the client.

Flags : Read / Write

Default value : (none)

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