Combine 2 webcam and logo

[iesx]

hi , 

Could somebody help me to combine 2 webcam with logo side by side?

this is the code but i still can't combine it successfully.if i record video
for 10 seconds , the recorded video only have around 5 seconds.Please help
me 

gst-launch-0.10 v4l2src device=/dev/video2 ! ffmpegcolorspace ! videoscale !
videorate ! video/x-raw-yuv,width=800,height=600,framerate=5/1 ! videobox
left=-320 border-alpha=0 ! queue ! videomixer name=mix ! ffmpegcolorspace !
progressreport ! theoraenc quality=20 bitrate=1000 ! oggmux ! filesink
location=all.ogg  v4l2src device=/dev/video1 ! ffmpegcolorspace !
video/x-raw-yuv, width=320, height=240, framerate=5/1 ! videobox ! queue !
ffmpegcolorspace ! mix. filesrc location="pic320x240.jpeg" ! jpegdec !
imagefreeze !  video/x-raw-yuv ! ffmpegcolorspace !  videobox top=-240
left=0 ! queue ! mix.




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