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3.0.35镜像就行,
分辨率1024x600的屏,
gst-launch v4l2src device=/dev/video0 ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! mfw_isink disp-width=512 disp-height=300 &
gst-launch v4l2src device=/dev/video1 ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! mfw_isink disp-width=512 disp-height=300 axis-left=512 &
gst-launch v4l2src device=/dev/video2 ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! mfw_isink disp-width=512 disp-height=300 axis-top=300 &
gst-launch v4l2src device=/dev/video3 ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! mfw_isink disp-width=512 disp-height=300 axis-top=300 axis-left=512 &
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