cisco/openh264 — pull request #288 by volvet (2014-02-14 09:06:21+00:00)
Title: use forward declaration to replace type cast

Change:
1. use forward declaration to replace type casting, clean related code.
2. Potential issue fix: in function CWelsLib::CreateIface, it does not make sense to check ppEncCtx when decide to return 0 or 1.

Review:
https://rbcommons.com/s/OpenH264/r/81/