RTSP2JPG converter

I need you to develop software for me. I would like this software to be developed for Linux using C or C++. RTSP code is written in C for embedded Linux. Implement Authentication in the RTSP. And dump jpg file from MJPEG stream. - output : jpg files , file name is snapshot time or received times - can be set time interval For example every 100 mS , every 1 sec (1000mS). - Program name RTSP2JPG Usage RTSP2JPG —url <camera URL> —time interval=1000 —outputpath=./snapshot - condition : don’t use any multimedia lib or function. Just handle as raw steaming Experience in C, RTSP and ONVIF protocols is required.