add facedetect2 and speakertrack into composite pipeline
update README.md with input video spec
add Doxyfile file
remove Doxyfile
Merge branch 'master' into speaker-tracking
Merge branch 'master' into speaker-tracking
Merge branch 'master' into speaker-tracking
working on gst-switch-capture; more index for Doxygen
working around gst-switch-capture
working around drawing face marker
mark the detected faces
transform faces
fixed face selection tranformation
fix a compilation error
fixed: face selection (x, y) transformation
mark the tracking face on UI
clean some comments
capture: allow changing protocol and PTZ control device (--device and --protocol)
fix scripts/stage tests
fix undefined "pow" symbol on Ubuntu 13.04