topic imx6dl平台使用gstreamer中gui叠加问题 in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815474#M125636 <HTML><HEAD></HEAD><BODY><P>我们的gui位于fb0，想使用gstreamer采集视频显示到fb1，通过alpha及key color来叠加显示，目前插件分别是imxv4l2src和imxv4l2sink，发现设置alpha无效，导致gst-launch-1.0 imxv4l2src ! imxv4l2sink的视频遮盖住了我们的gui，如果使用</P><P>gst-launch-1.0 imxv4l2src ! imxv4l2sink overlay-left=20 overlay-top=20&nbsp; 则能看到被遮盖的部分gui（如图片1），由此我猜测是alpha设置未生效，所以想问如何设置alpha才可？（图片1是当前的效果，图片2是想要实现的效果）</P></BODY></HTML> Thu, 29 Nov 2018 06:56:52 GMT 819265478 2018-11-29T06:56:52Z imx6dl平台使用gstreamer中gui叠加问题 https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815474#M125636 <HTML><HEAD></HEAD><BODY><P>我们的gui位于fb0，想使用gstreamer采集视频显示到fb1，通过alpha及key color来叠加显示，目前插件分别是imxv4l2src和imxv4l2sink，发现设置alpha无效，导致gst-launch-1.0 imxv4l2src ! imxv4l2sink的视频遮盖住了我们的gui，如果使用</P><P>gst-launch-1.0 imxv4l2src ! imxv4l2sink overlay-left=20 overlay-top=20&nbsp; 则能看到被遮盖的部分gui（如图片1），由此我猜测是alpha设置未生效，所以想问如何设置alpha才可？（图片1是当前的效果，图片2是想要实现的效果）</P></BODY></HTML> Thu, 29 Nov 2018 06:56:52 GMT https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815474#M125636 819265478 2018-11-29T06:56:52Z Re: imx6dl平台使用gstreamer中gui叠加问题 https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815475#M125637 <HTML><HEAD></HEAD><BODY><P>有没有人啊&nbsp; &nbsp;在线等</P></BODY></HTML> Fri, 30 Nov 2018 01:52:20 GMT https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815475#M125637 819265478 2018-11-30T01:52:20Z Re: imx6dl平台使用gstreamer中gui叠加问题 https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815476#M125638 <HTML><HEAD></HEAD><BODY><P>不能沉啊&nbsp; 有没有人啊&nbsp; 指示一下呀</P></BODY></HTML> Sat, 01 Dec 2018 08:57:57 GMT https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815476#M125638 819265478 2018-12-01T08:57:57Z Re: imx6dl平台使用gstreamer中gui叠加问题 https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815477#M125639 <HTML><HEAD></HEAD><BODY><P>I don't know how you test this, but you can refer to the sample code as below</P><P><A href="https://community.nxp.com/message/612485">https://community.nxp.com/message/612485</A>&nbsp;</P></BODY></HTML> Mon, 03 Dec 2018 08:19:20 GMT https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815477#M125639 joanxie 2018-12-03T08:19:20Z Re: imx6dl平台使用gstreamer中gui叠加问题 https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815478#M125640 <HTML><HEAD></HEAD><BODY><P>已解决，需要使用overlaysink搭配fb0的alpha，keycolor进行设置，结贴</P></BODY></HTML> Mon, 03 Dec 2018 08:35:05 GMT https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815478#M125640 819265478 2018-12-03T08:35:05Z Re: imx6dl平台使用gstreamer中gui叠加问题 https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815479#M125641 <HTML><HEAD></HEAD><BODY><P>大神如何设置的，能附相关的源码供学习吗？</P></BODY></HTML> Wed, 26 Dec 2018 09:40:32 GMT https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815479#M125641 yanglv 2018-12-26T09:40:32Z Re: imx6dl平台使用gstreamer中gui叠加问题 https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815480#M125642 <HTML><HEAD></HEAD><BODY><P>什么版本的BSP? &nbsp;MXCFB_SET_LOC_ALPHA有办法使用alpha in pixel吗? &nbsp;4.14.98的kernel好像没有办法设置alpha in pixel里.</P></BODY></HTML> Tue, 29 Oct 2019 05:57:51 GMT https://community.nxp.com/t5/i-MX-Processors/imx6dl%E5%B9%B3%E5%8F%B0%E4%BD%BF%E7%94%A8gstreamer%E4%B8%ADgui%E5%8F%A0%E5%8A%A0%E9%97%AE%E9%A2%98/m-p/815480#M125642 zhengl 2019-10-29T05:57:51Z