hi_mpi_venc_set_jpeg_param
The
The
Description
Sets the advanced QT parameters for a JPEG encoding channel.
Restrictions
This API must be called after an encoding channel is created and before the channel is destroyed.
You can tweak the current parameters obtained by using the hi_mpi_venc_get_jpeg_param call and pass the tweaked table to this API call. When the qfactor parameter in the hi_venc_jpeg_param struct is set to 0xFFFFFFFF, the Cb component (blue) and Cr component (red) in the QT must be the same.
Prototype
hi_s32 hi_mpi_venc_set_jpeg_param(hi_venc_chn chn, const hi_venc_jpeg_param *jpeg_param)
Parameters
Parameter |
Input/Output |
Description |
|---|---|---|
chn |
Input |
Encoding channel ID. |
jpeg_param |
Input |
Pointer to the advanced parameters of JPEG encoding channels. |
Returns
- 0: success
- Other values: failure. For details, see VENC/JPEGE Return Codes.