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<title>volume: GStreamer Base Plugins 1.0 Plugins Reference Manual</title>
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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Top |
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Description |
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Object Hierarchy |
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Implemented Interfaces |
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Properties
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volume
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volume
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Properties
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gboolean
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mute
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Read / Write
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gdouble
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volume
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Read / Write
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Types and Values
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struct
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GstVolume
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Object Hierarchy
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GObject
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╰── GInitiallyUnowned
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╰── GstObject
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╰── GstElement
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╰── GstBaseTransform
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╰── GstAudioFilter
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╰── GstVolume
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Implemented Interfaces
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GstVolume implements
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GstStreamVolume.
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Description
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The volume element changes the volume of the audio data.
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Example launch line
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1
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gst-launch-1.0 -v -m audiotestsrc ! volume volume=0.5 ! level ! fakesink silent=TRUE
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This pipeline shows that the level of audiotestsrc has been halved
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(peak values are around -6 dB and RMS around -9 dB) compared to
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the same pipeline without the volume element.
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Synopsis
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Element Information
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plugin
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volume
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author
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Andy Wingo <wingo@pobox.com>
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class
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Filter/Effect/Audio
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Element Pads
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name
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sink
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direction
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sink
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presence
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always
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details
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audio/x-raw, format=(string){ F32LE, F64LE, S8, S16LE, S24LE, S32LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved
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name
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src
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direction
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source
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presence
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always
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details
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audio/x-raw, format=(string){ F32LE, F64LE, S8, S16LE, S24LE, S32LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved
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Functions
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Types and Values
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struct GstVolume
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struct GstVolume;
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Opaque data structure.
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Property Details
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The “mute” property
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“mute” gboolean
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mute channel.
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Flags: Read / Write
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Default value: FALSE
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The “volume” property
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“volume” gdouble
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volume factor, 1.0=100%.
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Flags: Read / Write
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Allowed values: [0,10]
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Default value: 1
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Generated by GTK-Doc V1.28
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