This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

QT 界面显示与视频创建冲突--8168

我写了一个QT界面,想在8168平台上跑,现在已经成功运行。然后我找了个视频采集并且通过HDMI输出地demo.out,也能正常运行。

然后我在QT界面里另起一个进程来加载运行demo.out,但是出现了错误:

 [m3vpss ] 29912: SWMS: Create Done !!! [m3vpss ] 29912: DISPLAY: Create in progress !!! [m3vpss ] 29913: Assertion @ Line: 1050 in links_m3vpss/display/displayLink_drv.c: pObj->displayHndl != NULL : failed !!!

我从一个API手册上看到了这样的内容:

Graphics –Graphics layers for GUI are controlled from outside of McFW using Linux FBDev APIs
–An API called VGRPX is provided in McFW to bypass FBDev and control GRPX directly.
–Both FBDev and VGRPX cannot be used together.
说的好像是QT的framebuffer和视频创建有些冲突。
另外,先将不带demo.out的QT以后台方式运行,再单独运行demo.out 也会创建错误。
请专家解决一下吧,能给出些建议。