Thanks for asking! I was looking into the transcoding for quite some time, but due to my previous experience working at an IPTV company in Toronto (they sold a bunch of their channels to Rogers), I was familiar with ffmpeg / encoders in general. So I decided to skip Amazon Elastic Transcoder and do my own Lambda transcoder, which resulted in a way cheaper solution for it. All videos recorded are in H.264 and VP8 counterparts, for easy playout on iOS (H.264) and Android (VP8/H.264).