volume

volume — Set volume on audio/raw streams

Synopsis




                    GstVolume;

Object Hierarchy


  GObject
   +----GstObject
         +----GstElement
               +----GstBaseTransform
                     +----GstVolume

Implemented Interfaces

GstVolume implements GstImplementsInterface and GstMixer.

Properties


  "mute"                     gboolean              : Read / Write
  "volume"                   gdouble               : Read / Write

Description

The volume element changes the volume of the audio data.

Example launch line

gst-launch -v -m audiotestsrc ! volume volume=0.5 ! level ! fakesink silent=TRUE

This pipeline shows that the level of audiotestsrc has been halved (peak values are around -6 dB and RMS around -9 dB) compared to the same pipeline without the volume element.

Element Information

plugin volume
author Andy Wingo <wingo@pobox.com>
class Filter/Effect/Audio

Element Pads

name src
direction source
presence always
details audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int){ 32, 64 }; audio/x-raw-int, channels=(int)[ 1, 2147483647 ], rate=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true
name sink
direction sink
presence always
details audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int){ 32, 64 }; audio/x-raw-int, channels=(int)[ 1, 2147483647 ], rate=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean)true

Details

GstVolume

typedef struct _GstVolume GstVolume;

Opaque data structure.

Property Details

The "mute" property

  "mute"                     gboolean              : Read / Write

mute channel.

Default value: FALSE


The "volume" property

  "volume"                   gdouble               : Read / Write

volume factor.

Allowed values: [0,10]

Default value: 1