19:15 <chillfish8> Hi All, I'm trying to integrate libav with a project of mine but I'm having some difficulty in two areas:

19:18 <chillfish8> (Did not mean to hit send) but area 1) is I am unsure when the `get_format` callback is called, with my current tests it is not invoked ever but I am not sure what I am missing, HW context is created, the codec has the hw_device_ctx field updated and the callback set, all before opening. The other, 2) is what is the correct way to create filters which take in hardware frames? This question mostly stems from me having difficulty with issue 1, because

19:18 <chillfish8> the filter creation errors due to missing hw_frames_ctx, but I don't have that available when creating the filter.