VPSS

Solution	MPI/Parameter	Benefit	Impact	Notice	Proc Information
Set the depth attribute for the channel.	hi_mpi_vpss_set_chn_attr	Memory is saved by reducing buffers transferred between the channel and the user application.	A smaller value indicates weaker DIS and error tolerance capabilities.	-	cat /proc/umap/isp Depth in VPSS CHN ATTR
Enable the 3DNR compression mode	hi_mpi_vpss_create_grp	Some memory can be saved after the 3DNR and compression mode are enabled.	None	When the frame compression mode is enabled, the width must be greater than or equal to 640, and the height must be greater than or equal to 480 and less than or equal to 4096.	cat /proc/umap/isp RefCmp in VPSS GRP ATTR

Solution

MPI/Parameter

Benefit

Impact

Notice

Proc Information

Set the depth attribute for the channel.

hi_mpi_vpss_set_chn_attr

Memory is saved by reducing buffers transferred between the channel and the user application.

A smaller value indicates weaker DIS and error tolerance capabilities.

cat /proc/umap/isp

Depth in VPSS CHN ATTR

Enable the 3DNR compression mode

hi_mpi_vpss_create_grp

Some memory can be saved after the 3DNR and compression mode are enabled.

None

When the frame compression mode is enabled, the width must be greater than or equal to 640, and the height must be greater than or equal to 480 and less than or equal to 4096.

cat /proc/umap/isp

RefCmp in VPSS GRP ATTR

Parent topic: Optimization of Memory Usage of Each Module