公开(公告)号：US20230262239A1

公开(公告)日：2023-08-17

申请号：US18306886

申请日：2023-04-25

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Ye-Kui Wang ,  Li Zhang ,  Haibin Yin ,  Lingyu Li

IPC: H04N19/30 ,  H04N19/70 ,  H04N19/172

CPC classification number: H04N19/30 ,  H04N19/70 ,  H04N19/172

Abstract: A mechanism for processing video data is disclosed. A conversion is performed between a visual media data and a visual media data file. The visual media data file includes a versatile video coding (VVC) decoder configuration record and a plurality of pictures coded into one or more sublayers, wherein the VVC decoder configuration record comprises a number of the one or more sublayers and one or more VVC profile tier level (PTL) records for the one or more sublayers based on the number of the one or more sublayers.

公开(公告)号：US20230269384A1

公开(公告)日：2023-08-24

申请号：US18307161

申请日：2023-04-26

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Ye-Kui Wang ,  Li Zhang ,  Haibin Yin ,  Lingyu Li

IPC: H04N19/30 ,  H04N19/107 ,  H04N19/169 ,  H04N19/172

CPC classification number: H04N19/30 ,  H04N19/107 ,  H04N19/188 ,  H04N19/172

Abstract: A mechanism for processing video data is disclosed. A conversion is performed between a visual media data and a visual media data file. The visual media data file includes pictures in layers, a random access recovery point (roll) sample group specifying access points into the layers, and a grouping type parameter. The grouping type parameter specifies a correspondence between the access points and relevant layers of the layers. The grouping type parameter includes a layer identifier method identification code parameter specifying that the access points include one or more of: one or more gradual decoding refresh (GDR) pictures; and one or more mixed network abstraction layer (NAL) unit pictures with both an intra random access point (IRAP) subpicture and a non-IRAP subpicture.