hi_mpi_venc_set_mod_param
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Function
Sets the encoding module parameters.
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, you are advised to call hi_mpi_venc_get_mod_param to obtain the encoding module parameter settings of the current channel, and then set the parameters as required.
Prototype
hi_s32 hi_mpi_venc_set_mod_param(const hi_venc_mod_param *mod_param)
Parameters
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Parameter |
Input/Output |
Description |
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mod_param |
Input |
Pointer to the encoding module parameters. |
Returns
- 0: success
- Other values: failure. For details, see VENC/JPEGE Return Codes.
Restrictions
- After this API is called in a process to set parameters, the parameters take effect in other processes.
- If process B calls hi_mpi_venc_set_mod_param after process A creates a channel, process B returns an error indicating invalid settings. 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 hi_mpi_venc_set_mod_param API to adjust parameter values, the channels in other processes must be destroyed first.