vdec_get_fd

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas training product	x
Atlas inference product	√
Atlas 200I/500 A2 inference product	√

Obtains the device file descriptor corresponding to a decoding channel.

C Prototype

hi_s32 hi_mpi_vdec_get_fd(hi_vdec_chn chn)

Parameter	Description
chn	Int, decoding channel ID.

Return Value	Description
ret	Int, error code. 0 or positive value: valid. Non-positive value: invalid.

When a process exits, the file descriptor is automatically closed to clean up associated allocations.

Parent topic: VDEC/JPEGD APIs