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DM8168 如何用omtb完成图像剪切



为了完成图像剪切,我修改了omtb的脚本中

omx setp 0 sc OMX_TI_IndexConfigVidChResolution FrmCropWidth 0^M

omx setp 0 sc OMX_TI_IndexConfigVidChResolution FrmCropHeight 0^M

omx setp 0 sc OMX_TI_IndexConfigVidChResolution eDir output^M

图像并没有完成剪切功能。图片大小还是原来的。是否需要连带修改其他参数,还请指点