avutil/adler32: add Doxy group

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil/xtea: add Doxy @file and group

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
libvpxenc: allow qmax of 0

this is valid for both vp8 & vp9 and necessary for lossless in the
latter

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
h264: reduce whitespace differences to libav

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
mpegvideo: reduce whitespace differences to libav

This excludes many changes that worsen readability

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/hevc_sei: check active_seq_parameter_set_id validity

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/hevc_sei: Fix null dereference in decode_pic_timing()

Fixes Ticket3106

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