am 10f8baa4: am 42ef0c71: Initial check-in for software m4v_h263 encoder

Merge commit '10f8baa46cc32f0024b3c65b1e6d0c01bf4ceefd'

* commit '10f8baa46cc32f0024b3c65b1e6d0c01bf4ceefd':
  Initial check-in for software m4v_h263 encoder