Configuration - DVB Inputs - Muxes

Muxes are locations at which services can be found. On traditional networks (DVB-C, -T and -S), these are carrier signals on which the individual channels are multiplexed, hence the name. However, Tvheadend also uses the term ‘mux’ to describe a source for multiple IP streams - so an IP address, in effect.

'Muxes' Tab Screenshot

Add/Edit Dialog Example

A common set of fields is used for the Add or Edit functions, most of which can also be seen in the grid view:

Add/Edit Mux Dialog - ATSC

Add/Edit Mux Dialog - DVB-C

Add/Edit Mux Dialog - DVB-S/2

Add/Edit Mux Dialog - DVB-T/2

Add/Edit Mux Dialog - IPTV

The following functions are available:

Button Function
Save Save any changes made to the mux configuration.
Undo Undo any changes made to the mux configuration since the last save.
Add Add a new mux.
Delete Delete an existing mux.
Edit Edit an existing mux. This allows you to change any of the parameters you’d otherwise set when adding a new mux, e.g. delivery system, frequency, polarisation, etc.
Hide ??????. Options are Parent Disabled, All, None
Help Displays this help page.

Grid Items

The main grid items have the following functions:

Play : Downloads a playlist file (M3U or XSPF, depending on your startup options) so you can tune to the mux from an external application.

Enabled: Whether or not the mux is enabled and thus available.

EPG: EPG scan setup

  • Disable: Disable the EPG scan

  • Enable (auto): Enable the EPG scan (when some services from this mux are assigned to channels)

  • Force (auto): Force the EPG scan (everytime when the EPG scan is triggered)

  • Only EIT: Do only EIT EPG scan (when some services from this mux are assigned to channels)

  • Only UK Freesat: Do only UK Freesat EPG scan (when some services from this mux are assigned to channels)

  • Only UK Freeview: Do only UK Freeview EPG scan (when some services from this mux are assigned to channels)

  • Only Viasat Baltic: Do only Viasat Baltic EPG scan (when some services from this mux are assigned to channels)

  • Only OpenTV Sky UK: Do only OpenTV Sky UK EPG scan (the TSID must match in the skyuk configuration file)

  • Only OpenTV Sky Italia: Do only OpenTV Sky Italia EPG scan (the TSID must match in the skyit configuration file)

  • Only OpenTV Sky Ausat: Do only OpenTV Sky Ausat EPG scan (the TSID must match in the ausat configuration file)

Network : The name of the network to which the mux belongs. Networks are defined in Configuration -> DVB Inputs -> Networks - DVB-S or ATSC, for example.

Network UUID : The internal UUID reference for the network to which the mux belongs.

Name : Short name for the mux - derived from the frequency and polarisation if applicable (e.g. 10788V or 578MHz).

Original Network ID : The ONID is a code which uniquely identifies a network.

Transport Stream ID : The TSID is a code which identifies the network origination source or transmitter.

CRID Authority : The group responsible for the Content Reference Identifier for this mux. This is effectively a URL/URI to an authoritative source for programme data (e.g. series link).

Scan Status : Whether the mux is being scanned (ACTIVE), is planned to be scanned (PEND) or has reverted to idle scan (IDLE).

Scan Result : Whether there were any problems with the last scan of this mux.

Character Set : The character encoding for this mux (e.g. UTF-8).

# Services : The number of services found on this mux.

# Channels : The number of channels mapped to services found on this mux.

AC-3 Detection : Enables alternative detection methods for AC-3 audio.

  • Standard: : The default detection. If unsure, keep it set to this.

  • AC-3 = Descriptor 6 : The empty PMT descriptor 0x06 defaults to the AC-3 stream. Some Chinese cable providers are using this.

  • Ignore descriptor 5 : Text…

DVB-S/S2-Specific Configuration Items (Add/Edit Dialogs Only)

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DVB-T/T2-Specific Configuration Items (Add/Edit Dialogs Only)

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DVB-C-Specific Configuration Items (Add/Edit Dialogs Only)

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IPTV-Specific Configuration Items (Add/Edit Dialogs Only)

URL : Mux URL.

  • udp://: Raw MPEG-TS UDP packets

  • rtp://: MPEG-TS UDP packets with RTP header

  • http://: HTTP stream (MPEG-TS)

  • https://: Secure HTTP stream (MPEG-TS)

  • pipe://: Read standard output from an external program. If the program name does not have a forward slash (/) as the first character, the PATH environment variable is used to find the program name in all directories specified by PATH. Additional arguments may be separated using spaces. A raw MPEG-TS stream is expected. The string ${service\_name} is substituted with the service name field contents. The backslash character (\) means “take the next character as-is” (usually space or the backslash itself - what’s termed “escaping” a character).

Interface : The network interface/card on which the IPTV source can be found.

ATSC : Whether or not this is an ATSC IPTV source.

Mux Name : Text…

Service Name : Text…

Priority : The mux priority value (higher value = higher priority to use services from this mux). Value 0 means use the IPTV network priority value.

Streaming Priority : The mux priority value for streamed channels through HTTP or HTSP (higher value = higher priority to use services from this mux). Value 0 means use the standard streaming network priority value.

Environment (pipe) : List of environment variables for pipe (like PATH=/bin:/sbin) separated by spaces. The backslash character is handled like in URL.

Respawn (pipe) : Respawn the executed process when it dies.