Communication in a distributed system for transcoding video content meant for distribution via an OTT platform

Sa porastom pristupnih brzina Intereta i rastućom popularnošću uređaja sa podrškom za reprodukciju TV i video sadržaja, poput pametnih mobilnih telefona, tableta, igraćih konzola i pametnih televizora, počelo se razvijati tržište OTT (Over-the-top) sadržaja. Osnovna funkcionalnost OTT sustava je transkodiranje i distribucija video sadržaja krajnjim korisnicima. Sustav za transkodiranje distribuirani sustav temeljen na master - slave arhitekturi koji implementira prioritetni raspoređivač poslova. Ovaj diplomski rad bavi se razvojem jednog takvog sustava za transkodiranje. Budući da je sustav razvijao tim studenata, u ovom radu pokriven je razvoj sustava iz perspektive komunikacije - analizirani su načini komunikacije, arhitekture distribuiranog računarstva, protokoli i tehnologije te odabrani najprigodniji. Rad prolazi sve faze razvoja sustava, od analize zahtjeva, projektiranja arhitekture sustava i detaljnog dizajna, implementacije i testiranja.With an increase in Internet access speeds and a growing popularity of devices capable of reproducing TV and video content, such as smartphones, tablets, gaming consoles and smart TVs, a market for OTT (Over-the-top) content has emerged. Basic functionality of an OTT system is video content transcoding and delivery of video content to end users. A transcoding system is a distributed system based on the Master-Worker principle that implements a priority based task scheduler. This master thesis tackles development of one such transcoding system. As this system was developed by the team of students, this thesis covers the system development from the communications standpoint – analysing means of communication, distributed transcoding architectures, protocols and technologies, choosing the ones most suitable and following the software development lifecycle consisting of request analysis, architectural design, detailed design, implementation and testing