acl.himpi.sys_get_chn_csc_matrix

C Prototype	*hi_s32 hi_mpi_sys_get_chn_csc_matrix(hi_mod_id mode, hi_s32 chn, hi_csc_matrix csc_matrix, hi_csc_coefficient csc_coefficient);*
Python Function	csc_matrix, csc_coefficient, ret = acl.himpi.sys_get_chn_csc_matrix(mode, chn)
Function Usage	Obtain the CSC matrix parameters of a channel. The Atlas 200/300/500 Inference Product does not support this API. The Atlas Training Series Product does not support this API.
Input Description	mode: int, module ID, either HI_ID_VDEC or HI_ID_VPC. chn: int, channel ID. When mode is set to HI_ID_VDEC, check the value range of the chn parameter in acl.himpi.vdec_create_chn for the channel ID range. When mode is set to HI_ID_VPC, check the value range of the chn parameter in acl.himpi.vpc_create_chn for the channel ID range.
Return Value	ret: int, error code. 0 indicates success. Other values: failure. For details, see Common Return Codes. csc_matrix: int, data standard of the CSC matrix. For details, see hi_csc_matrix. csc_coefficient: dict, CSC matrix parameter value. For details, see hi_csc_coefficient.
Restrictions	Ensure that a channel has been created. If acl.himpi.sys_set_chn_csc_matrix has not been called to set the CSC matrix parameters, the default CSC matrix parameters following the BT.601 Wide standard are returned.

Parent topic: Common APIs