NvReleaseFd in gstdsexample.cpp

Accelerated Computing Intelligent Video Analytics DeepStream SDK
1

In DS 1.5 we see NvReleaseFd in gstdsexample.cpp.

In DS 3.0 NvReleaseFd is not used gstdsexample.cpp but is still in the DS headers.

When is NvReleaseFd used in DS 3.0?

2

Hi,
We have re-organized the code and handle NvReleaseFd internally.

One rare change you need to call NvReleaseFd is to run ‘omxh264dec ! dsexample’.

3

I know this is not supported, but on the Nano using DS 3.0

This pipeline: uridecodebin … ! myplugin ! …
works fine with NvReleaseFd in myplugin

While this pipeline v4l2src ! nvvidconv ! myplugin
fails NvReleaseFd in myplugin

4

Hi,
Please try to call

gst_memory_is_type (mem, "nvfilter");

If it is from nvvidconv, you don’t need to call NvReleaseFd.