公开(公告)号：US11962808B2

公开(公告)日：2024-04-16

申请号：US17719217

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/70 ,  H04N7/01 ,  H04N19/169 ,  H04N19/172 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463

CPC classification number: H04N19/70 ,  H04N7/01 ,  H04N19/172 ,  H04N19/188 ,  H04N19/1883 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463

Abstract: A mechanism for processing video data is disclosed. Information in a sequence parameter set (SPS) in a Versatile Video Coding (VVC) Common Media Application Format (CMAF) track is determined. A rule specifies a value of a video usability information progressive source flag (vui_progressive_source_flag) field in the SPS shall be equal to one. A conversion is performed between a visual media data and a media data file based on the SPS.

公开(公告)号：US20220337879A1

公开(公告)日：2022-10-20

申请号：US17719207

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/70 ,  H04N19/44

Abstract: A mechanism for processing video data is disclosed. Information in a sequence parameter set (SPS) in a versatile video coding (VVC) elementary stream is determined. A rule specifies a number of units in a tick (num_units_in_tick) and a time scale (time_scale), when present in the SPS, shall not change between video sequences in the VVC elementary stream. A conversion is performed between a visual media data and a media data file based on the SPS.

公开(公告)号：US20220337860A1

公开(公告)日：2022-10-20

申请号：US17719217

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/463 ,  H04N7/01

Abstract: A mechanism for processing video data is disclosed. Information in a sequence parameter set (SPS) in a Versatile Video Coding (VVC) Common Media Application Format (CMAF) track is determined. A rule specifies a value of a video usability information progressive source flag (vui_progressive_source_flag) field in the SPS shall be equal to one. A conversion is performed between a visual media data and a media data file based on the SPS.

公开(公告)号：US20220337858A1

公开(公告)日：2022-10-20

申请号：US17719192

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/46 ,  H04N19/70 ,  H04N19/169

Abstract: A mechanism for processing video data is disclosed. Information in a Decoding Capability Information (DCI) network abstraction layer (NAL) unit is determined. A rule constrains usage of the DCI NAL unit in a Versatile Video Coding (VVC) Common Media Application Format (CMAF) track. A conversion is performed between a visual media data and a media data file based on the DCI NAL unit.

公开(公告)号：US20220232256A1

公开(公告)日：2022-07-21

申请号：US17566220

申请日：2021-12-30

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/70 ,  H04N19/423 ,  H04N19/172 ,  H04N19/169

Abstract: A mechanism for processing video data is disclosed. Video decoder initialization information (DII) is determined. The DII includes data describing a maximum level (MaxLevel) to which all coded video sequences (CVSs) of the bitstream conform and a maximum format that comprises one or more parameters. The MaxLevel indicates a first maximum DPB size needed for decoding the bitstream. The maximum format indicates a second maximum DPB size, denoted as DPB memory for as maximum format (DpbMemory4MaxFormat), determined by simultaneously setting all parameters of the maximum format to largest values. The DII further comprises a first indication of whether the DpbMemory4MaxFormat exceeds the first maximum DPB size. A conversion is performed between a visual media data and a bitstream based on the indication.

公开(公告)号：US12003777B2

公开(公告)日：2024-06-04

申请号：US17566220

申请日：2021-12-30

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/423 ,  H04N19/169 ,  H04N19/172 ,  H04N19/70

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/188 ,  H04N19/423

Abstract: A mechanism for processing video data is disclosed. Video decoder initialization information (DII) is determined. The DII includes data describing a maximum level (MaxLevel) to which all coded video sequences (CVSs) of the bitstream conform and a maximum format that comprises one or more parameters. The MaxLevel indicates a first maximum DPB size needed for decoding the bitstream. The maximum format indicates a second maximum DPB size, denoted as DPB memory for as maximum format (DpbMemory4MaxFormat), determined by simultaneously setting all parameters of the maximum format to largest values. The DII further comprises a first indication of whether the DpbMemory4MaxFormat exceeds the first maximum DPB size. A conversion is performed between a visual media data and a bitstream based on the indication.

公开(公告)号：US20220345725A1

公开(公告)日：2022-10-27

申请号：US17719187

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/177 ,  H04N19/96 ,  H04N19/124 ,  H04N19/172 ,  H04N19/46

Abstract: A mechanism for processing video data is disclosed. A level indicator for a set of subpictures is determined. The set of subpictures is included in one or more subpicture tracks. The subpicture tracks are included in a subpicture entity group. When the level indicator is included in a sample group, an indication is signaled in an entity to group box to indicate the track that contains the sample group. A conversion is performed between a visual media data and a media data file based on the level indicator.

公开(公告)号：US20220345724A1

公开(公告)日：2022-10-27

申请号：US17719173

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/177 ,  H04N19/172 ,  H04N19/96 ,  H04N19/124

Abstract: A mechanism for processing video data is disclosed. One or more level indicators for a set of subpictures included in one or more subpicture tracks are determined. The subpicture tracks are included in a subpicture entity group. The level indicators are included in at least one of one or more sample groups carrying information for the set of subpictures, or in a data structure specifying the subpicture entity group. A conversion is performed between a visual media data and a media data file based on the level indicator.

公开(公告)号：US12301877B2

公开(公告)日：2025-05-13

申请号：US17719192

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/70 ,  H04N7/01 ,  H04N19/169 ,  H04N19/172 ,  H04N19/44 ,  H04N19/46 ,  H04N19/463

Abstract: A mechanism for processing video data is disclosed. Information in a Decoding Capability Information (DCI) network abstraction layer (NAL) unit is determined. A rule constrains usage of the DCI NAL unit in a Versatile Video Coding (VVC) Common Media Application Format (CMAF) track. A conversion is performed between a visual media data and a media data file based on the DCI NAL unit.

公开(公告)号：US12143604B2

公开(公告)日：2024-11-12

申请号：US17719187

申请日：2022-04-12

Applicant: Lemon Inc.

Inventor： Ye-kui Wang

IPC: H04N19/177 ,  H04N19/124 ,  H04N19/132 ,  H04N19/172 ,  H04N19/46 ,  H04N19/96

Abstract: A mechanism for processing video data is disclosed. A level indicator for a set of subpictures is determined. The set of subpictures is included in one or more subpicture tracks. The subpicture tracks are included in a subpicture entity group. When the level indicator is included in a sample group, an indication is signaled in an entity to group box to indicate the track that contains the sample group. A conversion is performed between a visual media data and a media data file based on the level indicator.