Is it possible to use h/w accelerator using 'nvv4l2h264enc' with kvssink?

[atg0831]

I want to use h/w accelerator encoding like 'nvv4l2h264enc' using kvssink, but does not work.
It works when to use x264enc instead of using 'nvv4l2h264enc'

** Logging **

[DEBUG] [21-02-2023 05:41:01:479.410 GMT] clientReadyHandler invoked
[TRACE] [21-02-2023 05:41:01:479.417 GMT] createKinesisVideoClientSync(): Awaiting for the Kinesis Video Client to become ready...
[TRACE] [21-02-2023 05:41:01:479.422 GMT] createKinesisVideoClientSync(): Kinesis Video Client is Ready.
[INFO ] [21-02-2023 05:41:01:479.431 GMT] try creating stream
terminate called after throwing an instance of 'std::logic_error'
  what():  basic_string::_M_construct null not valid
Fatal Python error: Aborted

Is it impossible to use 'nvv4l2h264enc' in kvssink yet?

[jdelapla]

kvssink has no limitation on what encoder you use with it. If the output is h264 and your pipeline has h264parse in it, any encoder can be used.

[atg0831]

Thank you for your reply.
But, not working yet.
I tried to find problem in my pipeline.