* commit 'a925f723':
  rtp: Don't read priv_data unless it is allocated
  flvenc: Check whether seeking back to the header succeeded
  sapenc: Pass the title on to the chained muxers

Conflicts:
	libavformat/flvenc.c
	libavformat/sapenc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>