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bug of scalar link

Hi,

Based on IPNC_RDK3.5, I created my usecase as the following :

Host IPC bit out -> video IPC bit in -> dec link-> video frame out -> vpss frame in-> scalar link-> nsf link->vpss frame out->video frame in->H264 enc-> video ipc bit out->host ipc bit in

But when the first frame arrives, the link chain will stuck. The error message is :

[m3vpss ]  20066: Assertion @ Line: 1032 in links_m3vpss/sclr/sclrLink_drv.c: status == FVID2_SOK : failed !!!

I checked the vps driver in the hdvpss package and found the error is caused by parameter checking in the file vpsdrv_m2msc.c.

if (sFrmPrms->width < (cropCfg->cropWidth + cropCfg->cropStartX)) //by ldm
            {
                GT_0trace(VpsMdrvScTrace, GT_DEBUG,
                    "Source width is less than crop width + horizontal "
                    "Offset\n");
                    retVal = FVID2_EINVALID_PARAMS;
                break;
            }

Here sFrmPrms->width = 1080, cropCfg->cropWidth=1080,  cropCfg->cropStartX=32, so the expression is TRUE.

If remove the paramter checking or force the cropStartX=0 during scalar link creating, the error is gone.

But as the picture shown above, the top and left of the output video of scalar link is not correct.  I think there is no one create chain as above, i.e., to scale down the video from decode link.

The output is normal when I create the same usecase in DM8168. I comapared the mcfw between dvr_rdk and IPNC_RDK, there are too much difference.

Can anyone tell how to fix the bug? Even I used DEI link instead of scalar link to scale down , the result is same.