i.MX Processors中的主题 Video cropping on CSI-&gt;MEM path https://community.nxp.com/t5/i-MX-Processors/Video-cropping-on-CSI-gt-MEM-path/m-p/228323#M16625 <HTML><HEAD></HEAD><BODY><P>I have modified mxc_v4l2_tvin demo by adding VIDIOC_S_CROP call to crop the input frame. Cropping vertically (left/width) works just fine but when I crop horizontally (top/height), the image starts scrolling. The image seems to be cropped though, but I can't stabilize it.</P><P></P><P></P><P>Any ideas what could be wrong? On CSI-&gt;IC path cropping works OK.</P><P></P><P></P><P>I'm using MX537 CPU with Linux image based on 11.09.01 release (kernel 2.6.35.3).</P><P><SPAN class="mce_paste_marker"></SPAN></P></BODY></HTML> Tue, 07 May 2013 14:21:26 GMT henri_bragge 2013-05-07T14:21:26Z Video cropping on CSI->MEM path https://community.nxp.com/t5/i-MX-Processors/Video-cropping-on-CSI-gt-MEM-path/m-p/228323#M16625 <HTML><HEAD></HEAD><BODY><P>I have modified mxc_v4l2_tvin demo by adding VIDIOC_S_CROP call to crop the input frame. Cropping vertically (left/width) works just fine but when I crop horizontally (top/height), the image starts scrolling. The image seems to be cropped though, but I can't stabilize it.</P><P></P><P></P><P>Any ideas what could be wrong? On CSI-&gt;IC path cropping works OK.</P><P></P><P></P><P>I'm using MX537 CPU with Linux image based on 11.09.01 release (kernel 2.6.35.3).</P><P><SPAN class="mce_paste_marker"></SPAN></P></BODY></HTML> Tue, 07 May 2013 14:21:26 GMT https://community.nxp.com/t5/i-MX-Processors/Video-cropping-on-CSI-gt-MEM-path/m-p/228323#M16625 henri_bragge 2013-05-07T14:21:26Z Re: Video cropping on CSI->MEM path https://community.nxp.com/t5/i-MX-Processors/Video-cropping-on-CSI-gt-MEM-path/m-p/228324#M16626 <HTML><HEAD></HEAD><BODY><P>My guessing is the hsync/vsync isn't match the size no matter vertically/horizontally scrolling.</P><P>You can try IPUx_CSIx_OUT_FRM_CTRL:CSIx_VSC (or related) increase/decrease value to suits your case.</P></BODY></HTML> Sat, 18 May 2013 11:17:36 GMT https://community.nxp.com/t5/i-MX-Processors/Video-cropping-on-CSI-gt-MEM-path/m-p/228324#M16626 JayTu 2013-05-18T11:17:36Z