avcodec/g729postfilter: avoid potential negative shift

Fixes CID1194402

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/h264_cabac: fix indention

Fixes CID1087088
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/mjpegdec: make type of shift unsigned to avoid undefined behavior

Found-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffmpeg_filter: make *jpeg_formats static const

Found-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/mpeg12enc: increase declared size of block function argument

Fixes CID1047236
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>