DM388: Sw Mosaic configuration in Dm388 and Merger buffer arrangement

Hi Kailash,

I hope you are using IPNC v3.8 or v3.9 as your software release, so answering them according to these release.

I have two frames coming in to Sw mosaic is there any way to scale one of the  input by configuring sw mosaic parameters?

Yes you can configure the window size for different stream by changing the SwMsLink_LayoutWinInfo of swMsLink.

I have two inputs to Merger , How the two inputs are arranged as single output?

Each Link (except sink links) have their output queue(one or many),each output queue contain channels(one or many) and each channels can contain different streams.

Here the merge link has multiple input queue and single output queue, it will receive different stream from its different input queue and merge them all into a single output queue as different channels.

For more infomation about this framework you can refer to this guide.

For V3.8

Collaterals/IPNC_RDK_McFW_UserGuide.pdf

For V3.9

Source/ipnc_rdk/collaterals/IPNC_RDK_McFW_UserGuide.pdf

Regards,

Anuj

Pathpartner Technology Pvt Ltd.

Hi Anuj,

Thanks for replying.

I have one more question on SwMs ,I want to achieve scaling in SwMs ,Can it be achieved by setting SwMsLink_LayoutWinInfo -> bypass = TRUE. If so how is it going to take output height and width.?

Thanks
Kailash

Hi Kailash,

You can achieve scaling by configuring the params of SwMsLink_LayoutWinInfo structure.
Suppose you have 2 stream 1 1080p and other 720p and you want to display it on screen with same size then you can use.

swMsPrm.layoutPrm.winInfo[0].channelNum = 0;
swMsPrm.layoutPrm.winInfo[0].startX = 0;
swMsPrm.layoutPrm.winInfo[0].startY = 0;
swMsPrm.layoutPrm.winInfo[0].width = 1920;
swMsPrm.layoutPrm.winInfo[0].height = 1080/2;
swMsPrm.layoutPrm.winInfo[0].bypass = FALSE;
swMsPrm.layoutPrm.winInfo[1].channelNum = 1;
swMsPrm.layoutPrm.winInfo[1].startX = 0;
swMsPrm.layoutPrm.winInfo[1].startY = 1080/2;
swMsPrm.layoutPrm.winInfo[1].width = 1920;
swMsPrm.layoutPrm.winInfo[1].height = 1080/2;
swMsPrm.layoutPrm.winInfo[1].bypass = FALSE;

Here i am dividing 2 stream of different size horizontally and displaying them with same size.
Hope this will help.

Regards,
Anuj

Hi Anuj,

In this example The win 0 will be scaled down to 1920 x 1080/2 and win 1 will scaled up to 1920 x 1080/2 . even if we are setting bypass as false.
In the definition Ti had described "UInt32 bypass; /* TRUE/FALSE - Low Cost Scaling/DEI enable disable */" , So if we are making it false then how we will achieve scaling or this flag is doing something else.

Thanks
Kailash

Hi Kailash,

If you check the implementation of swMLink inbelow path
Source/ipnc_rdk/ipnc_mcfw/mcfw/src_bios6/links_m3vpss/swMs

You will able to know the use of each params.

This params basically bypass the odd lines of progressive frames but the quality will get affected. So the output height will be half.(It is called as low cost scaling).

Depending on the Layout Params swMs Link generate the final output frame containing all the streams in its mention region.

Regards,
Anuj