hi_mpi_vdec_get_fd
Applicable Products
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Function
Obtains the device file descriptor corresponding to a decoding channel.
When the process exits, the file descriptor is automatically closed to clean up associated allocations.
Prototype
hi_s32 hi_mpi_vdec_get_fd(hi_vdec_chn chn)
Parameters
Parameter |
Input/Output |
Description |
|---|---|---|
chn |
Input |
Decoding channel ID. |
Returns
- 0 or positive value: valid
- Negative value: invalid
Parent topic: VDEC/JPEGD