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After some more searching, I believe I need to perform some kind of interlacing to alternate between the images from the top field and bottom field. Haven't figured out how to do that yet..

Meanwhile, I have resorted to cropping and resizing. I'm sure this is wrong, but I'm doing this until I figure out how to interlace the video.

GSCAM_CONFIG="v4l2src device=/dev/video0 ! videocrop top=0 left=0 right=0 bottom=288 ! videoscale ! video/x-raw-yuv,width=720,height=576 ! ffmpegcolorspace"

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