---
name: "gavf-mux"
section: "1"
platform: "linux"
package: "gmerlin"
version: "2.0.0~svn6298~dfsg0-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/gavf-mux"
---

# gavf-mux(1)

Multiplex multiple gavf stream into one

## NAME

gavf-mux - Multiplex multiple gavf stream into one

## SYNOPSIS

**gavf-mux** *\[options\]*

## DESCRIPTION

gavf tee

## OPTIONS

- **-i** *\<location\>*

  Input file or location. Use this option multiple times to add more inputs.

- **-o** *\<output\>*

  Output file or location

- **-m** *name=value*

  Set global metadata of the output (can be used multiple times). Use "name=" to clear a field

- **-oopt** *param1=val1\[&param2=val2...\]*

  options

**shm**=\<number\> (default: 1024)

SHM threshold

Select the minimum packet size for using shared memory for a stream. Non-positive values disable shared memory completely

**to**=\<number\> (500..100000, default: 5000)

Timeout (milliseconds)

**dp**=\[1\|0\] (default: 0)

Dump gavf packets

Use this for debugging

## GENERIC OPTIONS

The following generic options are available for all gmerlin applications

- **-help**

  Print this help message and exit

- **-help-man**

  Print this help message as a manual page and exit

- **-help-texi**

  Print this help message in texinfo format and exit

- **-version**

  Print version info and exit

- **-v** *level*

  Set verbosity level (0..4)

- **-syslog** *name*

  Log to syslog the specified name

- **-stderr**

  Always log to stderr

## FILES

**~/.gmerlin/plugins.xml**

Cache of the plugin registry (shared by all applications)

**~/.gmerlin/generic/cfg.xml**

Default plugin parameters are read from there. Use gmerlin\_plugincfg to change them.