Does this work with YUYV formats?

[sprajagopal]

I'm asking since the MJPG seems preferred in the example. Also, if I bypass the check, I get:

# 
# Fatal error in ../deps/v8/src/objects.cc, line 2538
# Check failed: receiver->IsJSFunction().
#

==== C stack trace ===============================

 1: V8_Fatal
 2: 0xd7cf7f
 3: v8::Object::CreationContext()
 4: node::MakeCallback(v8::Isolate*, v8::Local<v8::Object>, v8::Local<v8::Function>, int, v8::Local<v8::Value>*)
 5: 0x7fbd0bb9d4f8
 6: 0x13845a8
 7: uv_run
 8: node::Start(int, char**)
 9: __libc_start_main
10: _start
Illegal instruction (core dumped)

[brettdaman]

+1 got the same error for yuyv webcam

[brettdaman]

related to #34