[gst-devel] Mixing streams

buz at netbuz.org buz at netbuz.org
Tue Jun 5 00:41:43 CEST 2007

You're looking for 'adder', which is in gst-plugins-base

  Long name:    Adder
  Class:        Generic/Audio
  Description:  Add N audio channels together

On Mon, Jun 04, 2007 at 03:01:43PM -0700, Steve Fink wrote:
> I'm looking for a plugin that mixes multiple audio streams into one.
> The documentation refers to 'aggregators' as a general category, but I
> can't actually find any in the source tree. About the closest I get is
> /* aggregator is borked
>  * #define PIPELINE8  "fakesrc num-buffers=4 ! tee name=tee1
> .src0,src1 ! .sink0, sink1 aggregator ! fakesink silent=true"
>  * */
> Surely there must be a plugin out there that adds the samples from N
> streams together to produce 1 output stream? I suppose I could try
> writing one, since I'm going to need to understand request pads before
> too long anyway, but I'm sure I'll get the subtleties wrong.
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