venc_set_mod_param

Applicability

Product

Supported (√/x)

Atlas A3 training products / Atlas A3 inference products

x

Atlas A2 training products / Atlas A2 inference products

x

Atlas training products

x

Atlas inference products

Atlas 200I/500 A2 inference products

Function Usage

Sets the encoding module parameters.

Prototype

  • C Prototype
    1
    hi_s32 hi_mpi_venc_set_mod_param(const hi_venc_mod_param *mod_param)
    
  • Python Function
    1
    ret = acl.himpi.venc_set_mod_param(mod_param)
    

Parameter Description

Parameter

Description

mod_param

Dict, dictionary of encoding module parameters. For details, see hi_venc_mod_param.

Return Value Description

Return Value

Description

ret

Int, error code.

Restrictions

  • Ensure that this API is called before any channel is created. Otherwise, the error code HI_ERR_VENC_NOT_PERM is returned. Before calling this API, it is recommended that the acl.himpi.venc_get_mod_param API be called to obtain the encoding module parameter settings of the current channel, and then set the parameters as required.
  • This API is set at the global level. In the multi-process scenario:
    • After this API is called in a process to set parameters, the parameters take effect in other processes.
    • If process B calls acl.himpi.venc_set_mod_param after process A creates a channel, process B returns an error, indicating that the setting is invalid. However, process B continues encoding based on the default value or the parameter value that is successfully set in other processes. In this case, if process B is required to call the acl.himpi.venc_set_mod_param API to adjust parameter values, the channels in other processes must be destroyed first.

Reference

For the API call sequence, see JPEGE and VENC.