如何修改USB摄像头的分辨率?
1) 如果是v4l2调用,请参考v4l2 spec
2) 如果用opencv,可以参考/home/g2l/Yocto_qsb_g2l/build/tmp/work/aarch64-poky-linux/gx-edge-ai-demo/1.0-r0/git/opencvworker.cpp