dtmfdetect

This element will detect DTMF tones and emit messages.

The message is called dtmf-event and has the following fields:

  • gint type (0-1): The application uses this field to specify which of the two methods specified in RFC 2833 to use. The value should be 0 for tones and 1 for named events. Tones are specified by their frequencies and events are specified by their number. This element can only take events as input. Do not confuse with "method" which specified the output.
  • gint number (0-16): The event number.
  • gint method (2): This field will always been 2 (ie sound) from this element.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseTransform
                    ╰──dtmfdetect

Factory details

Authors: – Olivier Crete

Classification: – Filter/Analyzer/Audio

Rank – marginal

Plugin – spandsp

Package – GStreamer Bad Plug-ins

Pad Templates

sink

audio/x-raw:
         format: S16LE
           rate: 8000
       channels: 1

Presence – always

Direction – sink

Object type – GstPad

src

audio/x-raw:
         format: S16LE
           rate: 8000
       channels: 1

Presence – always

Direction – src

Object type – GstPad

Properties

qos 

“qos” gboolean

Handle Quality-of-Service events

Flags : Read / Write

Default value : false

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