[openlp-dev] Output displays

[Philip Ridout]

It has been brought to my attention that preparations have been made to
allow multiple output displays in the future.

There will be lots of complexities around external applications such as
VLC, Impress and PowerPoint. Do these support multiple outputs?

What about hardware resources? I think part of our strength as a free (as
in beer) application, is that it can be used by anybody who can obtain a
basic pc and display device, making a projection system affordable to many
churches that could not afford to pay the licencing fees  of other
applications alone. Having multiple output displays seems only something
that would be usable on higher performing equipment with multi head
graphics cards. A far cheaper option to achieve multiple (duplicate) output
displays would be to use a VGA/HDMI splitter.

With the exception of a seperate stage view, I fail to see a use case that
will add value to OpenLP. I feel that it adds far to much complexity, to an
area that we have struggled with in the past (phonon/WebKit/VLC video that
didn't work all that well) taking away from our time to improve other areas
of OpenLP.

Are there any existing worship presentation applications that allow this
functionality that I can look at for examples of how this might be used?

Regards,
Phill
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