avisynth: set duration of audio streams

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/lossless_videodsp: fix incompatible pointer type warning

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/f_select: fix incompatible pointer type warning

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'upstream/master'