NojaSim contains a C++ library and utilities for building and running audio/video streaming simulations. The library contains classes for trace file access, stream generation, error models, logging output and wrapper classes for network simulators (currently Omnet++). The set of utilities includes programs, shell-scripts and Matlab scripts to analyze bitstreams, extract traces and run steps of a simulation workflow such as encoding and quality assessment. You can use these tools to build your own simulations and change them to fit your needs.