Tool/software:

I am currently integrating virtual channel cameras(yuv+ir) in tda4vm. Despite following the outlined steps, I am unable to resolve the issue and am seeking professional assistance.

Please assist in resolving the issue.

1. It has been verified that YUV video output is being channeled through /dev/video2 by utilizing the command below.

   gst-launch-1.0 v4l2src device="/dev/video2" ! video/x-raw, width=1920, height=1000, format=UYVY ! kmssink driver-name=tidss

2. First, check the virtual channel IR video output using /dev/video2. The IR image output can be confirmed by modifying the value in fd->entry[fd->num_entries].bus.csi2.vc within the .get_frame_desc=gw5410_get_frame_desc function of the v4l2_subdev_pad_ops.

   if (gw5410_vc_id) //test flag
     fd->entry[fd->num_entries].bus.csi2.vc = gw5410_vc_id;
   else
     fd->entry[fd->num_entries].bus.csi2.vc = i;

3. Work is in progress to set up /dev/video2 for YUV output and /dev/video3 for infrared output.

4. When using the gst-launch command with /dev/video3, the .get_frame_desc function is not invoked.

   gst-launch-1.0 v4l2src device="/dev/video3" ! video/x-raw, width=1920, height=1000, format=UYVY ! kmssink driver-name=tidss

5. In the ti_csi2rx_start_streaming() function, located in the j721e-csi2rx.c file, a comment "/* Find the stream to process. */" is followed by a for loop. Within this loop, the condition "r->source_pad == remote_pad->index" is not satisfied, which hinders the execution of "route = r;".

   /* Find the stream to process. */
   for (i = 0; i < routing->num_routes; i++) {
       struct v4l2_subdev_route *r = &routing->routes[i];
    
       if (!(r->flags & V4L2_SUBDEV_ROUTE_FL_ACTIVE))
           continue;
       
       if (r->source_pad != remote_pad->index)
           continue;
           
       route = r;
       break;
   }

6. I thought it was necessary to modify the media_pipeline in media control. Upon comparing and analyzing the instances where /dev/video2 and /dev/video3 were used as arguments, I noticed differences in parts of the pipeline, yet it's unclear which sections require modification.