Merge commit '57e7b3a89f5a0879ad039e8f04273b48649799a8'

Merge commit '57e7b3a89f5a0879ad039e8f04273b48649799a8'

* commit '57e7b3a89f5a0879ad039e8f04273b48649799a8':
  dnxhdenc: use the AVFrame API properly.
  libx264: use the AVFrame API properly.
  svq1enc: use the AVFrame API properly.
  gif: use the AVFrame API properly.

Conflicts:
	libavcodec/gif.c
	libavcodec/svq1enc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5b0c70c2499e20529d517b712910d6f4f72e9485)

Author of the merged code: Anton Khirnov
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>