avfilter/buffersrc: reindent
avfilter/overlay: reindent
doc/examples/resampling_audio: use av_freep() for saftey

also its better in examples to use the safer functions.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/huffyuvencdsp: try to fix misaligned access

Should fix fate on MIPS

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