[FFmpeg-devel] [PATCH v4 0/4] Explain what "context" means

[Andrew Sayers]

This version strongly implies AVClass is only used alongside AVOption.
I'm not sure when or if e.g. AVClass::category would be used by an external
API developer, but happy to change the text if anyone has a use case.

I accept the argument that the previous version was linked more widely
than it was useful, but instead of reducing links I've tried to widen
its usefulness.  The new version discusses how e.g. FFmpeg contexts differ
from curl, which could be useful to developers coming from other projects.
And it goes into more detail about e.g. context lifetime, which could
be useful for even an intermediate developer.