DM8168 add QT app issue

han wei

Intellectual 650 points

Hi erveryone!

I have a problem to run DM8168 add QT.

SDK: DVRRDK_01.09.01.21

capture data:1920X1080X60

display on chip HDMI:1920X1080X60

QT graphical interfaces SIZE:1920X120

usage:

capture video data and QT graphical interfaces all together display on DM8168 on chip HDMI port.

issue:

I had reference the code in DVRRDK_01.09.01.21 SDK package.(DVRRDK_01.09.01.21\dvr_rdk\dvrapp\dvrgui).

When app run. capture video data and QT graphical interfaces can not together display on HDMI port.

some code of main() :

int main(int argc, char *argv[])
{

    LIB816x_Reach_startSystem(0, 0, 0, 0);
	
    QApplication a(argc, argv);
    reachgui w;
    w.show();
    
    return a.exec();
}

after  LIB816x_Reach_startSystem(0, 0, 0, 0) run end . The capture video  data is display on HDMI port.

Then after w.show() run end.capture video  data is not display on HDMI port . and The QT graphical interfaces pic is display on HDMI port.

But if I close the QT graphical interfaces(clicked the X on QT graphical interfaces) Then capture video data is displaying on HDMI port again.

So, somebody can help me.where is wrong?

QT code write error? DM8168 setting wrong?

Thank You very much!

over 13 years ago

0 han wei over 13 years ago

Intellectual 650 points

hi everyone!

I had reference the code in DVRRDK_01.09.01.21 SDK package and add

int DVR_FBStart()
{
	struct ti81xxfb_scparams scparams;
	struct ti81xxfb_region_params  regp;
	if (fd0 <= 0) {
		fd0 = open(FBDEV_NAME_0, O_RDWR);
		if (fd0 <= 0) {
	        eprintf("Could not open device [%s] \n", FBDEV_NAME_0 );
	        return -1;
	    }
	        
	    scparams.inwidth = 1920;
	    scparams.inheight = 1080;
	    scparams.outwidth = 1920;
	    scparams.outheight = 1080;
	    scparams.coeff = NULL;
	
	    if (ioctl(fd0, TIFB_SET_SCINFO, &scparams) < 0) {
	        perror("TIFB_SET_SCINFO\n");
	    }
	
		if (ioctl(fd0, TIFB_GET_PARAMS, &regp) < 0) {
			perror("TIFB_GET_PARAMS\n");
		}
	
		regp.transen = 1;
		regp.transcolor = 0x00ff00ff;
		regp.scalaren = 1;
	
		if (ioctl(fd0, TIFB_SET_PARAMS, &regp) < 0) {
			perror ("TIFB_SET_PARAMS.\n");
		}
	}

    printf("DVR_FBStart OK!\n");
    return 0;
}

in LIB816x_Reach_startSystem() function. But QT and capture data can not display on chip HDMI together also..

somebody can help me. tell me where is wrong?

thank you!

0 zhu ted over 13 years ago in reply to han wei

Prodigy 160 points

Hi han wei ,I got the same problem. the only difference is that I used the SD display.

Have you solved your problem?

We may have a discussion.

My email is :tedzhuhai@foxmail.com

my qq:348517993

0 yongjia bi over 13 years ago in reply to zhu ted

Prodigy 110 points

I have the same problem! any one can help us ?

0 Eric Mao over 13 years ago in reply to yongjia bi

Genius 4330 points

I was also troubled by this problem

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DM8168 add QT app issue