About: http://webisa.webdatacommons.org/365571284

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	H.2 Virtual Buffers for Determining Quantization Level Virtual buffers vI, vP and vB (corresponding to frame types I, B, and P) provide rate control feedback by adjusting the rate control quantization scale factor.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com