公开(公告)号：EP3965421A1

公开(公告)日：2022-03-09

申请号：EP21194357.6

申请日：2021-09-01

Applicant: Lemon Inc.

Inventor： WANG, Ye-Kui ,  ZHANG, Li

IPC: H04N19/169 ,  H04N19/30 ,  H04N19/70

Abstract: Systems, methods and apparatus for processing image data are described. One example method includes performing a conversion between a visual media file and a bitstream. The visual media file comprises image items each comprising a sequence of one or more pictures according to a media file format, and the bitstream includes access units each consisting of one or more pictures each belonging to a layer according to a video coding format. The media file format specifies that image items comprising pictures originated from the bitstream are allowed to be associated with different instances of a property descriptor that indicates high-level characteristics of the bitstream.