QUALITY CONTROL FOR FILE-BASED CONTENT AT YLE
Jouni Frilander, Ilkka Tuomela · 2013
With the introduction of file-based video, the importance of the technical quality control (QC) of the video essence becomes higher than in the video tape domain. The combination of modern video tape and a well maintained VTR is considered to be a very reliable way of storing and delivering video signals from one location to another. Video files introduce different challenges to those of video tapes. While transferring video from the production facility or content owner to a broadcast facility, the video files are transferred typically through several stages including network equipment, mass storage devices and server computers. Also, one or more format conversions may be applied during the processing of the video file. Furthermore, in addition to the video and audio data, the container that is used to store the content essence needs to be error-free; and since there is no internal error correction in video files and the devices used to play them back, one must take extra care of the integrity of the video files. This article explains the current state of video file quality control at the