J721EXSOMXEVM: Hello world program for TIOVX, Step by step guide to create my own program, use of gstreamer with cmake. How to use hardware encoder and decoder in cpp program.

Hi,

Abdul Rehman said:

I want to use TIOVX and create a first hello world program. Can I get step by step guide?

You could follow the below steps in order to setup, build and run the demos on EVM. This would be a good starting point.

Vision Apps User Guide: Build and Run (ti.com)

Once this is done, you could execute the tiovx tutorial code (./vx_app_tutorial.out - TI OpenVX tutorial). This is mentioned in the above link.

You could also add a hello world code for TIOVX in this tutorial (by referring other tutorials) and execute it the same way.

Abdul Rehman said:

Secondly, I want to use hardware encoder and decoder and there I found gstreamer guidelines and some command line tools for the conversion. Is there any simple cpp program in the sdk that I can use and understand how gst is working on tda4

In vision_apps, we have a multi_cam_codec demo application. You could find this in the SDK at ${PSDKRA}/vision_apps/apps/basic_demos/app_multi_cam_codec

This uses gstreamer and you could refer this code to understand the gstreamer usecase.

Abdul Rehman said:

How can I access hardware encoder and decoder with ffmpeg

ffmpeg is open source. You could use the ffmpeg commands on Linux to access codec. 

FFmpeg

Regards,

Nikhil