Lesson 7 : Decode, save, visualize, analyze and re-transmit
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**Download lesson** :download:`[here]<snippets/lesson_7_a.py>`

.. include:: snippets/lesson_7_a.py_

The full code can be downloaded from :download:`[here]<snippets/lesson_7_a.py>`.

The OpenCV client program for reading shared memory can be found from :ref:`[lesson 4]<opencv_client>`.

Testing the shared multicast stream was explained in :ref:`[lesson 5]<multicast>`.