A METHOD, AN APPARATUS AND A COMPUTER PROGRAM PRODUCT FOR VIDEO ENCODING AND VIDEO DECODIN 3 WITH WAVEFRONT-BASED GRADUAL RANDOM ACCESS

摘要

There are disclosed a method and an apparatus for video encoding. The method can include determining that a coding unit is in intra coded area and encoding the coding unit in intra prediction mode into a bitstream unless the intra prediction for the coding unit needs a reference sample for prediction from a dirty area. The method can further include determining that a coding unit is in clean area when the coding unit is encoded in inter prediction mode into a bitstream, the method comprises validating a plurality of inter prediction modes to determine which of the plurality of inter prediction modes do not use reference samples from a dirty area, and defining such inter prediction mode as a valid inter prediction mode. The method further includes encoding into a bitstream that exact-match is required at a recovery point and encoding into a bitstream an indication of a use of a diagonal refresh; and transmitting the encoded bitstream to a decoder.