[Cin] New BlendAlgebra plugin install fail on Termux.

[Georgy Salnikov]

On Thu, 27 Feb 2025, Andrew Randrianasulu wrote:

> I tried to load one m2ts file, select all, copy, protect track, add video
> track, paste. Thus I made two video tracks from same media.
>
> Then I tried to add BlendAlgebra with multiply program by dragging its icon
> from Resources window onto one of video tracks. It attached but complained
> it needs two tracks to process. I middle clicked on plugin bar and selected
> Change, and selected another video track as shared, then confirmed by
> clicking OK.
>
> Complain disappear, but so are buttons to change parameters on plugin's
> bar! And I can't see any difference on playback ....

If a plugin needs more than one track to work on, then firstly you drag the
plugin onto some of tracks, just as usually. Then you click with RMB on the
other track(s), choose Attach effect. You get a big window, select there
BlendAlgebra from the list of shared effects. The effect bar will appear
under the second track, but without the button to edit parameters - because
it is the single effect (although attached to several tracks). You edit its
parameters by the button under that track where it was first dragged.

How many tracks a blend function requires, is usually defined in its code
(REQUIRE_TRACKS). CinGG checks if at least that number of tracks is
available and does not execute the effect while playback if there are too
few.

After you have attached the plugin, you can attach some algebra function
from the plugin parameters dialog. Try to do so firstly step-by-step, as I
do not know how this can go through the resources window.

For example, if you load some project with algebra into the resources, then
it is a question in which directory it will search algebra functions in the
case they are defined with relative paths in the xml file. The function
files cannot be copied automatically because only the plugin knows, they
exist, CinGG binary cannot know this. If it is the case, functions have to
be reattached from the place they actually are.

If there is some function defined in the plugin, but its source file is not
found, then no function will be applied at this place, and playback will not
be changed. Will be some message printed in the CinGG console if there is no
function file, I don't remember.
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Georgy Salnikov
NMR Group
Novosibirsk Institute of Organic Chemistry
Lavrentjeva, 9, 630090 Novosibirsk, Russia
Phone   +7-383-3307864
Email   sge at nmr.nioch.nsc.ru
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