Simple pipeline

[inspirit]

I was wondering if you can share some simple pipeline u are using with 1-2 filters for example.
Most confusing for me is which Context u use for Filter initialization and execution. Do u create new Context for each filter? or do u run them through:

[TGLDevice runTextureCacheQueueSync:^{
    [filter1 process];
    [filter2 process];
}];

i see that for VideoCapture u use separate Context. Please can you give some quick example?
thank you!