adder

adder — Add N audio channels together

Synopsis

struct              GstAdder;

  GObject
   +----GstObject
         +----GstElement
               +----GstAdder

  "caps"                     GstCaps*              : Read / Write

The adder allows to mix several streams into one by adding the data. Mixed data is clamped to the min/max values of the data format.

The adder currently mixes all data received on the sinkpads as soon as possible without trying to synchronize the streams.

1	gst-launch audiotestsrc freq=100 ! adder name=mix ! audioconvert ! alsasink audiotestsrc freq=500 ! mix.

This pipeline produces two sine waves mixed together.

Last reviewed on 2006-05-09 (0.10.7)

plugin	adder
author	Thomas Vander Stichele <thomas at apestaart dot org>
class	Generic/Audio

name	sink%d
direction	sink
presence	request
details	audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32, depth=(int)32, signed=(boolean){ true, false }
	audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean){ true, false }
	audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)8, depth=(int)8, signed=(boolean){ true, false }
	audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int){ 32, 64 }

name	src
direction	source
presence	always
details	audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32, depth=(int)32, signed=(boolean){ true, false }
	audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean){ true, false }
	audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)8, depth=(int)8, signed=(boolean){ true, false }
	audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int){ 32, 64 }

struct GstAdder;

The adder object structure.

  "caps"                     GstCaps*              : Read / Write

Set target format for mixing (NULL means ANY). Setting this property takes a reference to the supplied GstCaps object.

Since 0.10.24

			GStreamer Base Plugins 0.10 Plugins Reference Manual
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