gstreamer管道混合两个音频源

Question

I want to create a pipeline in gstreamer that will have two audio source and will mix the audios with some scaling factor and through the output data to alsasink. I have seen the example of "adder" but am not sure if adder can be used with multiple filesrc. I need your help in constructing this pipeline.

Answer 1

Of course it can !

Here's an example launch line to get you going :

gst-launch-1.0 uridecodebin uri=file:///home/meh/Music/Fonky\ Family-\ L\'amour\ Du\ Risque-MGvSx-foo3E.wav ! adder name = m ! autoaudiosink uridecodebin uri=file:///home/meh/Music/kendrick.wav ! audioconvert ! m.

Have a nice day :)