Best strategy to deal with src change / bin

[Frederic Turmel]

Hi, I have a source audio element that can send PCM or iec60958/61937. The
src element update its output caps so the downstream will know.

An example case:
When src is PCM:     PCM -> sink
When src is iec60958/:    iec60958 -> parser -> audio decoder -> PCM

Ideally would like this to be totally transparent to my top level
application that creates the pipeline. In other words I don't want my top
level app updating the pipeline.

Note the IEC60958/61937 I need to build also.

What would be the best options?
1-If I create the parser with proper pads/caps can decodebin leverage it
automatically?
2-Should I create a specific bin for my needs?

Any suggestions?

Thanks
FredT
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