While building an online education site, CourseSaver.com, it was frequently required to build our own solutions. Whether this was because existing solutions didn't exist, or they were too expensive, many tools were created. As a result, we have many unique tools that have applications in multiple areas, and for many different customers.
A simple example would be our basic video upload tool that grew into a full CDN powered solution which takes a single HD video, encodes it to multiple qualities, distributes it to our own custom CDN with options to transcribe and stabilize it. The natural evolution of that takes us into advanced voice transcription, transcript editing, transcript keying to add interactivity and search capabilities and so on.
Working with open source tools such as the following, we can start your project with the groundwork already laid.