i need modify ffmpeg (C+ with Linux) .. only expert -- 2

Hello ////////////////////////////////// /////////////////////// Please kindly check the attach file for details. one more thing.. see more --> i need modify FFMPEG ( part of MPEG DASH section for decode Widevine streams under LA URL ) other word--> I need modify ffmpeg ( patch mpeg-dash section ) to decrypt Widevine DRM streams under license Widevine URL. I need decrypt input MP4 chunks. look here [login to view URL] here is stream URL [login to view URL]:[login to view URL] [login to view URL]:[login to view URL] [login to view URL] stream is Widevine DRM , second parameter is correct LA_URL for decode [login to view URL] you can test for example here https://shaka-player-demo.appspot.com/demo/#asset=[login to view URL]:[login to view URL];license=[login to view URL];lang=cs-CZ;build=uncompiled shaka player can play Widevine streams if not play , you need only update LA_URL ( remember valid URL of LA_URL is a few second ) LA_URL you need read only once if start FFMPEG you can try run in linux command : ffmpeg -re -i [login to view URL]:[login to view URL] -c copy [login to view URL] [login to view URL]:[login to view URL] [login to view URL] [login to view URL] i need patch or modify ffmpeg dash part for decrypt I think it's not complicated. eg KODI can display decoded streams ( Widevine ) too and use these libraries. I will create 50% milestone first and when I see some progress and when I see more update of the work I will create final milestone 50%. and released both milestone when this project will be done . please dont force me to released payment. see my reviews here I always paid. If you dont like my terms. please dont bid. I need a coder who want to work long term . because this type of work I have more 10.