H264 encoding documentation

I’m working on a GENIO510 and i have created a app with a gstreamer pipeline which uses the v4l2h264enc plug-in.
Is there any documentation on how it works?
More over i noticed that even if i pass to the plug-in a video stream at 30fps it generates batches of frames as outpu ( batch size depends on bitrate). I would like to have that for each frame it receives it generates the encoded-one, like using omxh264enc on nvidia board.

thanks in advance

Please refer to the IoT Yocto Document - Video Codec.

The usage of v4l2h264enc should be the same as omxh264enc.

If you want to get a per-frame bitstream, you may try to dump it at the downstream element.