Question about the files inside demux and packetizer

[happyboy]

hi all
I discover that the files inside \modules\demux and \modules\packetizer
May I asl what is the different of demux and packetizer?
what is the function of those file?

Thanks

[Rémi Denis-Courmont]

The difference is that they do different things??

[happyboy]

The difference is that they do different things??

Thank you for your reply.
May I ask what kind of different is??