Merge commit 'd7d6efe42b0d2057e67999b96b9a391f533d2333'

Merge commit 'd7d6efe42b0d2057e67999b96b9a391f533d2333'

* commit 'd7d6efe42b0d2057e67999b96b9a391f533d2333':
  h264: check sps.log2_max_frame_num for validity
  mov: validate number of DataReferenceBox entries against box size
  mov: compute avg_frame_rate only if duration is known
  flac: change minimum and default of lpc_passes option to 1

Conflicts:
	libavcodec/h264_ps.c
	libavformat/mov.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>