adder

## adder adder — Add N audio channels together |

## Synopsis

    struct              GstAdder;

## Object Hierarchy

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

## Properties

      "caps"                     GstCaps*              : Read / Write

## Description

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.

### Example launch line

    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)

## Synopsis

### Element Information

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

### Element Pads

name | sink_%u
direction | sink
presence | request
details | audio/x-raw, format=(string){ S32LE, U32LE, S16LE, U16LE, S8, U8, F32LE, F64LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string){ interleaved, non-interleaved }

name | src
direction | source
presence | always
details | audio/x-raw, format=(string){ S32LE, U32LE, S16LE, U16LE, S8, U8, F32LE, F64LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string){ interleaved, non-interleaved }

## Details

### struct GstAdder

    struct GstAdder;

The adder object structure.

## Property Details

### The `"caps"` property

      "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