https://docs.scipy.org/doc/scipy-0.18.1/reference/signal.html

José,

Sci Py, NumPy, Pyplot are the ones i used the most. You will not regret choosing python!

for video processing  use opencv

https://docs.scipy.org/doc/scipy-0.18.1/reference/signal.html

See the following links, please.

https://github.com/unpingco/Python-for-Signal-Processing

HTH

You should consider numpy, scipy, sympy, pandas and matplotlib.

The options of numpy, scipy, pandas, & matplotlib are surely helpful. A mask to all this with 'purposed' functions for Digital Signal Processing are available here.

https://github.com/AllenDowney/ThinkDSP

It's called ThinkDSP.