Voila les etapes que j'ai documentee en faisant mon install:
Tvheadend config
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Stream config
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configuration -> dvb inputs -> networks -> add
=> give a name
=> set max # input streams to 1 if necessary (i.e. service only allows to stream 1 channel at a time)
=> set URL, format for local file is file://{path}/{filename}
=> select skip initial scan
=> save
This creates muxes and services. Then tvheadend will scan each service 1 by 1, this takes time.
Next step is to map services to channels
configuration -> dvb inputs -> muxes: disable epg auto scan for all muxes
configuration -> dvb inputs -> services -> map all services
Now channels should be created i.e. configuration -> channels / epg