h264dump: various updates
h264dump: various updates

ebu/ebu-bmx,stuarthicks/bmx,stuarthicks/bmx,kierank/bmxlib-bmx,kierank/bmxlib-bmx,kierank/bmxlib-bmx,xunchangguo/BMX,stuarthicks/bmx,Limecraft/ebu-bmx,ebu/ebu-bmx,Limecraft/ebu-bmx,Limecraft/ebu-bmx,ebu/ebu-bmx,xunchangguo/BMX,xunchangguo/BMX