Our renderer system is already heavily multithreaded and prioritized to keep the
main thread active. As a result, FFmpeg receives little benefits from being
multithreaded and is actually detrimental to our main thread as it hasn't been
prioritized to keep the main thread as active as possible.
This index system will have awareness of the disk cache state and be able to
fill in and store frames as necessary while keeping the disk cache under
user defined limits.
itsmattkc