stream=/home/lmsdk/Videos/joy_720p.yuv
width=1280
height=720
cropx=0
cropy=0
cropw=1280
croph=720
dstx=0
dsty=0
dstw=1280
dsth=720
framerate=25
fourcc=nv12

stream=/home/lmsdk/Videos/foreman_352_288.yuv
width=352
height=288
cropx=0
cropy=0
cropw=352
croph=288
dstx=300
dsty=300
dstw=352
dsth=288
framerate=25
fourcc=nv12
AlphaEnable=1
GlobalAlpha=128