HEVC encoding on live camera stream from alliend vision using multimedia api

Hi,
01_video_encode sample should be a complete sample for video encoding. Beside it, you can also check

/usr/src/jetson_multimedia_api/samples/unittest_samples/encoder_unit_sample/

And this patch to 12 sample:
How to use v4l2 to capture videos in Jetson Orin r35 Jetpack 5.0 and encode them using a hardware encoding chip - #8 by DaneLLL