i.MX ProcessorsのトピックRe: How to use the GPU to capture usb camera https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779961#M121195 <HTML><HEAD></HEAD><BODY><P>This is my related functionality with qt, but consuming 120ms with QPiamap :: loadfromData and 148ms with QPixmap ::</P><P></P><P>save. Is there a more optimized way?</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pic.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/13728i99DECB94F7074514/image-size/large?v=v2&amp;px=999" role="button" title="pic.png" alt="pic.png" /></span></P></BODY></HTML> Wed, 13 Dec 2017 03:28:20 GMT 振杰司徒 2017-12-13T03:28:20Z How to use the GPU to capture usb camera https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779958#M121192 <HTML><HEAD></HEAD><BODY><P>Board : IMX6Q</P><P>System: Linux</P><P>Kernel: 3.14</P><P></P><P></P><P>I use the V4L2 to read the usb camera, and then displayed on the qt with cpu, although successful, but it is not smooth.</P><P></P><P>Therefore, I want to use the GPU to read and display the usb camera. Is there any information or examples?</P><P></P><P>thank you very much.</P></BODY></HTML> Tue, 12 Dec 2017 05:47:10 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779958#M121192 振杰司徒 2017-12-12T05:47:10Z Re: How to use the GPU to capture usb camera https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779959#M121193 <HTML><HEAD></HEAD><BODY><P>Hi &nbsp;振杰</P><P></P><P>please look at sect.13.2 Unit Test for gpu tests atatched Linux Manual.</P><P>Seems for camera better to use gstreamer, it is described in Linux Guide</P><P>sect.7 Multimedia, use nxp bsps described on</P><P><A class="jive-link-external-small" href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fwww.nxp.com%2Fproducts%2Fsoftware-and-tools%2Fsoftware-development-tools%2Fi.mx-software-and-tools%2Fi.mx-6series-i.mx-7series-software-and-development-tool-resources%3AIMX_SW" rel="nofollow" target="_blank">http://www.nxp.com/products/software-and-tools/software-development-tools/i.mx-software-and-tools/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW</A></P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 12 Dec 2017 10:02:40 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779959#M121193 igorpadykov 2017-12-12T10:02:40Z Re: How to use the GPU to capture usb camera https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779960#M121194 <HTML><HEAD></HEAD><BODY><P>thanks for your reply</P><P></P><P>But I'm worried I can not fully implement my function on a 720P camera by using gstreamer. Because I not only need to</P><P></P><P>display, but also saved as pictures and udp transmission.</P></BODY></HTML> Wed, 13 Dec 2017 03:12:21 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779960#M121194 振杰司徒 2017-12-13T03:12:21Z Re: How to use the GPU to capture usb camera https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779961#M121195 <HTML><HEAD></HEAD><BODY><P>This is my related functionality with qt, but consuming 120ms with QPiamap :: loadfromData and 148ms with QPixmap ::</P><P></P><P>save. Is there a more optimized way?</P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pic.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/13728i99DECB94F7074514/image-size/large?v=v2&amp;px=999" role="button" title="pic.png" alt="pic.png" /></span></P></BODY></HTML> Wed, 13 Dec 2017 03:28:20 GMT https://community.nxp.com/t5/i-MX-Processors/How-to-use-the-GPU-to-capture-usb-camera/m-p/779961#M121195 振杰司徒 2017-12-13T03:28:20Z