* qatar/master:
avconv: Fix spelling errors.
aac: Only set sample rate and object type from ADTS if output hasn't been configured.
aac: Set SBR and PS to unsignalled during headerless and ADTS initialization.
aac: Only output configure if audio was found.
avconv: save two levels of indentation in flush_encoders()
avconv: factor flushing encoders out of output_packet().
avconv: factor out initializing input streams.
avconv: remove -intra option.
avconv: reset streamid_map between output files.
avconv: make timer_start a local var in transcode().
avconv: cosmetics, move OutputStream.
avconv: remove two unused macros.
Conflicts:
avconv.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>