

STREAM IN 

veejay can read yuv4mpeg from a named pipe and it can write yuv4mpeg
to another named pipe for processing.


1. create a named pipe
  mkfifo stream.yuv

2. start mplayer
  mplayer -vo yuv4mpeg -ao null -zoom -x 352 -y 288 -vop scale yuy2 videofile.avi


Note that the -x and -y parameters must match your video's dimensions


3. type 'fi stream.yuv' in veejay's console, hit ESC to switch to tag mode
   and press 'Insert' to activate the stream.

You should now see mplayer's output in veejay, You can use this sample
but it is not possible to either export or inline render. If you 
want to re-capture the output, use vloopback or stream out.


It is easy to break the pipe. Just start mplayer again and press the toggle button
in the GUI (SampleList -> click 'T000x' stream.yuv -> click Activate)



STREAM OUT
----------


YUV4MPEG

Pressing 'grab video' will result in dumping YCbCr 4:2:0 to a file, by default
in ~/.veejay/dump-yuv4mpeg. You can set an alternative location by setting the 
parameters '--outstream' or '-o' when executing veejay


VLOOPBACK

Type 'lp' in the console to see your vloopback devices
Type 'lo <num>' in the console and press ENTER, you will see a message.
Type 'lc' in the console to stop output to vloopback
Type 'li <num>' to take vlopback pipe num for input




