scope:

Recommendation ITU-T P.1202.2 describes parametric non-intrusive bitstream assessment of video media streaming quality - higher resolution application area (HR), for monitoring the video quality of IP-based video services based on information extracted from the video bitstream encoded with the H.264/AVC baseline video codec. The model are intended especially for the higher resolution application area, including services as IPTV. Recommendation ITU-T P.1202.2 consists of two models corresponding to two modes: mode 1 and mode 2, which both are no-reference (i.e. nonintrusive) models. Mode 1 refers to as parsing mode, the model operates by analysing information in the video bitstream without fully decoding the bitstream (i.e. no pixel information is used) for MOS estimation, and Mode 2 refers to as full decoding mode, in addition to the bitstream information which mode 1 uses, the model can also decode parts or all of the video bitstream (i.e. pixel information is used) for MOS estimation. Further client specific information, such as concealment type, is provided to the algorithm out-of-band, for example in the form of stream specific side information. As output, the model algorithm provides an estimate of the video quality in terms of the 5-point absolute category rating (ACR) mean opinion score (MOS) scale defined in ITU-T P.910.