cutter

Analyses the audio signal for periods of silence. The start and end of silence is signalled by bus messages named cutter.

The message's structure contains these fields:

GstClockTime timestamp: the timestamp of the buffer that triggered the message.
GstClockTime stream-time: the stream time of the buffer.
GstClockTime running-time: the running time of the buffer.
gboolean above: TRUE for begin of silence and FALSE for end of silence.

Example launch line

 gst-launch-1.0 -m filesrc location=foo.ogg ! decodebin ! audioconvert ! cutter ! autoaudiosink

Show cut messages.

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──cutter

Authors: – Thomas Vander Stichele

Classification: – Filter/Editor/Audio

Rank – none

Plugin – cutter

Package – GStreamer Good Plug-ins

audio/x-raw:
         format: { S8, S16LE }
           rate: [ 1, 2147483647 ]
       channels: [ 1, 2147483647 ]
         layout: interleaved

Presence – always

Direction – sink

Object type – GstPad

audio/x-raw:
         format: { S8, S16LE }
           rate: [ 1, 2147483647 ]
       channels: [ 1, 2147483647 ]
         layout: interleaved

Presence – always

Direction – src

Object type – GstPad

“audio-level-meta” gboolean

If TRUE, generate or update GstAudioLevelMeta on output buffers.

Flags : Read / Write

Default value : false

Since : 1.24

“leaky” gboolean

do we leak buffers when below threshold ?

Flags : Read / Write

Default value : false

“pre-length” guint64

Length of pre-recording buffer (in nanoseconds)

Flags : Read / Write

Default value : 200000000

“run-length” guint64

Length of drop below threshold before cut_stop (in nanoseconds)

Flags : Read / Write

Default value : 500000000

“threshold” gdouble

Volume threshold before trigger

Flags : Read / Write

Default value : 0.1

“threshold-dB” gdouble

Volume threshold before trigger (in dB)

Flags : Read / Write

Default value : -46.0517

The results of the search are