taking photos and show v4l2src stream with different sizes

[ertasemre]

Hi,
On my embedded linux platform I have 320x240 lcd display and usb webcam. I
can display my webcam view via "gst-launch -e v4l2src !
video/x-raw-yuv,width=320,height=240,framerate=30/1 ! ffmpegcolorspace !
fbdevsink device=/dev/fb0".
Also I can capture a frame using  of "gst-launch -e v4l2src num-buffers=1 !
video/x-raw-yuv,width=640,height=480,framerate=20/1 ! ffmpegcolorspace !
jpegenc !  filesink location=/tmp/test.jpg".
But I want to do above things at the same time (while my display is showing
webcam view I want to get a jpg image which must be 640x480 at least). Is
the any way to do this?
I have tried "gst-launch -e v4l2src num-buffers=100 ! tee name=t ! queue !
video/x-raw-yuv,width=640,height=480,framerate=30/1 ! ffmpegcolorspace !
jpegenc ! multifilesink location=/tmp/test%d.jpg t. ! queue !
video/x-raw-yuv,width=640,height=640,framerate=30/1 ! ffmpegcolorspace !
fbdevsink device=/dev/fb0 " but my lcd is 320x240 so I cant see full frame
on my lcd. 
Is there any way to do this?
please help me.
Regards
Emre




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