cutter

cutter

Properties

gboolean leaky Read / Write
guint64 pre-length Read / Write
guint64 run-length Read / Write
gdouble threshold Read / Write
gdouble threshold-dB Read / Write

Types and Values

struct GstCutter

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstCutter

Description

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 two fields:

  • GstClockTime "timestamp": the timestamp of the buffer that triggered the message.

  • gboolean "above": TRUE for begin of silence and FALSE for end of silence.

Example launch line

1
 
gst-launch-1.0 -m filesrc location=foo.ogg ! decodebin ! audioconvert ! cutter ! autoaudiosink
Show cut messages.

Synopsis

Element Information

plugin

 cutter

author

 Thomas Vander Stichele <thomas at apestaart dot org>

class

 Filter/Editor/Audio

Element Pads

name

 sink

direction

 sink

presence

 always

details

 audio/x-raw, format=(string){ S8, S16LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved

name

 src

direction

 source

presence

 always

details

 audio/x-raw, format=(string){ S8, S16LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved

Functions

Types and Values

struct GstCutter

struct GstCutter;

Property Details

The “leaky” property

  “leaky”                    gboolean

do we leak buffers when below threshold ?.

Flags: Read / Write

Default value: FALSE

The “pre-length” property

  “pre-length”               guint64

Length of pre-recording buffer (in nanoseconds).

Flags: Read / Write

Default value: 0

The “run-length” property

  “run-length”               guint64

Length of drop below threshold before cut_stop (in nanoseconds).

Flags: Read / Write

Default value: 0

The “threshold” property

  “threshold”                gdouble

Volume threshold before trigger.

Flags: Read / Write

Default value: 0

The “threshold-dB” property

  “threshold-dB”             gdouble

Volume threshold before trigger (in dB).

Flags: Read / Write

Default value: 0

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