DVRRDK question on mosaic grid and scaling

Thomas Lo

I am using DVRRDK 4.0.

I want to add a mode such that when using mosaic, I can keep the width to height ratio of video in each mosaic window,

e.g. Assume output display resolution is 1080p and input video to mosaic is 720x576 (width to height 5:4), When displayed in 2x2 mode, current mosaic configuration would scale video to 960x540, which is 16:9, but I hope the ratio to be 5:4 which is 675x540.

I know I can just tune the size of each window to fit my need, but my question is, in this case, when i enable griddraw, the grid would also become 675x540 instead of 960x540, which look strange.

So what I want to ask is how could I do modification such that I could make the video and grid having different size?

Thanks

over 10 years ago

0 Badri Narayanan over 10 years ago

TI__Guru 59700 points

Pls attach a picture showing the issue. The issue description is not clear.

0 Thomas Lo over 10 years ago in reply to Badri Narayanan

Expert 1560 points

For example, when 2x2 display mode

Figure 1 shows what is normally displayed,

and Figure 2 is what I want to do now.

The black outer line is the display,
The the red lines are the grid drawn by mosaic
The blue area is the video

I want to have the grid drawn on each window not the same as the video size.

Hope it is clear this time, thanks.

0 Badri Narayanan over 10 years ago in reply to Thomas Lo

TI__Guru 59700 points

I understand you want to achieve what is shown n Figure 2 but currently swms will draw the gird immediately next to the window. Is it correct ?

If yes then this is not supported in swms.

You will have to modify

/dvr_rdk/mcfw/src_bios6/links_m3vpss/swMs/swMsLink_drv.c

SwMsLink_drvDoDma

Change such that /*Vertical Left side*/ and /*Vertical right side*/ grid are draw between windows intead of next to window by adjusting startX,startY

0 Thomas Lo over 10 years ago in reply to Badri Narayanan

Expert 1560 points

Thanks, I will try that.

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

Processors

Processors forum

DVRRDK question on mosaic grid and scaling