avfilter/vsrc_life: use av_calloc()

Signed-off-by: Paul B Mahol <onemda@gmail.com>
avfilter/vf_gradfun: use av_calloc()

Signed-off-by: Paul B Mahol <onemda@gmail.com>
avcodec: typo fix sepera* → separa*
lavf/subtitles: Make comment less arrogant

Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
avcodec/mjpegdec: Fix rgb48 ljpeg

Fixes Ticket894

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