In the section Live Streaming > Using Multiple Destinations of the vMix User manual it mentions multi-bitrate support is disabled for multiple destinations.

Would it be possible to implement this so that if multiple destinations are selected the same encode settings are used for both destinations? So you would have an ffmpeg that is along these lines (most args removed for simplicity):


This implementation would be simplest way to support multi-bitrate for multiple destinations and would allow primary and backup stream redundancy. The encoding usage would be twice as much, but it should still be usable.