FIELD: electrical communication engineering.
SUBSTANCE: invention relates to the field of video encoding. Technical result is achieved by obtaining a definition of a group of samples, which documents all of the samples containing at least one intra random access point (IRAP) picture; while the group of samples is defined to include a record of a group of samples, which includes: a value indicating whether all the coded pictures in a particular sample in the sequence of samples are IRAP pictures, a value indicating the number of IRAP pictures in a particular sample, and values indicating the level identifiers of the IRAP pictures in a particular sample, wherein at least one of the access video units in the generated file contains an IRAP picture in the base level, and also contains one or more non-IRAP pictures in the other levels.
EFFECT: technical result consists in increasing the efficiency of video coding.
34 cl, 12 dwg
