Removed Q dependency

Signed-off-by: Juan Martin Runge <jmrunge@gmail.com>
Added heartbeat to check if we have enough scheduled medias

Signed-off-by: Juan Martin Runge <jmrunge@gmail.com>
Assume length of clip is always in frames

Signed-off-by: Juan Martin Runge <jmrunge@gmail.com>
Fixed typo

Signed-off-by: Juan Martin Runge <jmrunge@gmail.com>