mp4 video to ws2812 Matrix

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so first approch faild gloriously, need hints.
what have selfbuilt ws2812 matrix 32x64 pixel. habe mp4 video (in same resolution), should displayed on matrix.
first try (actually son, programming, teh hardware):
converting each frame according rgb matrix (at 25fps) python programm , direct output textfile ( know not resource saving way, quick do). think teensy 3.2 use driving display should have enought memory handle that.
sadly can't figure out, because arduino ide crashes while c&p file.

our next approach use pi (or other pc) deliver frames "on fly" via uart teensy , let matrix driving.

but running on teensy stand alone. other ideas handle one?
prefereable doable in few days without investing 100 euros?

quote
because arduino ide crashes while c&p file.
how big file?


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