Input-Mirror

Mirror Input Selection on vMix Slave

Allow one to mirror the current input preview/program selection on vMix slave instances in order to closely follow the vMix master instance.

Problem

Sometimes a single vMix instance is not enough. For instance, when on a "playout" machine two incoming SRT streams should each be forwarded to multiple outgoing RTMP endpoints. The solution is to run vMix twice on the same machine: once for the first SRT stream and its RTMP endpoints and a once again for the second SRT stream and its RTMP endpoints.

Solution

For a "playout" machine, one has to be able to switch between the incoming SRT streams and various "placeholder" inputs ("before-event", "after-event", "failure", "emergency", etc). As both vMix instances have the same set of inputs, one can simply mirror the inputs in preview/program in the vMix master instance 1:1 on the vMix slave instance.

Usage

Suppose you you want to mirror inputs from the vMix master instance to a vMix slave instance whose HTTP API is under port 8188 (instead of the regular port 8088 of the vMix master instance). Then setup the vMix master instance as following:

• add the input-mirror script and adjust its configuration to:

dim peerAPI          as String  = "http://127.0.0.1:8188/API/"
dim timeSlice        as Integer = 50
dim debug            as Boolean = true

Finally, start the script input-mirror and bring any of the inputs into preview/program.