SIGNALING REPLACEMENT OF VIDEO DATA UNITS IN A PICTURE-IN-PICTURE REGION

    公开(公告)号:EP4114017A1

    公开(公告)日:2023-01-04

    申请号:EP22182331.3

    申请日:2022-06-30

    Applicant: Lemon Inc.

    Inventor: Wang, Ye-Kui

    Abstract: A method of processing media data. The method includes determining, for a conversion between the media data and a media data file, whether a preselection element includes an indicator, wherein the indicator indicates that video data units representing a target picture-in-picture region of a main video are able to be replaced by corresponding video data units of a supplementary video; and performing the conversion between the media data and the media data file based on the indicator. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.

    SYNTAX FOR DEPENDENT RANDOM ACCESS POINT INDICATION IN VIDEO BITSTREAMS

    公开(公告)号:EP3975570A1

    公开(公告)日:2022-03-30

    申请号:EP21199462.9

    申请日:2021-09-28

    Applicant: Lemon Inc.

    Inventor: WANG, Ye-Kui

    Abstract: Methods and apparatus for processing visual media data are described. One example method of processing visual media data includes performing a conversion between visual media data and a bitstream of the visual media data according to a format rule, wherein the format rule specifies that a supplemental enhancement information (SEI) message that refers to a dependent random access point (DRAP) picture is included in the bitstream, and wherein the format rule further specifies that the SEI message includes a syntax element indicating a number of intra random access point (IRAP) pictures or dependent random access point (DRAP) pictures that are within a same coded layer video sequence (CLVS) as the DRAP picture.

    PICTURE DIMENSION INDICATION IN DECODER CONFIGURATION RECORD

    公开(公告)号:EP3972270A1

    公开(公告)日:2022-03-23

    申请号:EP21197128.8

    申请日:2021-09-16

    Applicant: Lemon Inc.

    Inventor: Wang, Ye-Kui

    Abstract: Systems, methods and apparatus for processing visual media data are described. One example method includes performing a conversion between visual media data and a visual media file that includes one or more tracks that store one or more bitstreams of the visual media data according to a format rule; wherein the format rule specifies whether to include, in a configuration record of a track, a first element indicative of a picture width of the track and/or a second element indicative of a picture height of the track is based on (1) whether a third element indicative of whether the track contains a specific bitstream corresponding to a specific output layer set and/or (2) whether the configuration record is for a single-layer bitstream, and wherein the format rule further specifies that the first element and/or the second element, when included in the configuration record of the track, are represented in a field including 16 bits.

    BRAND FOR A MEDIA FILE
    74.
    发明公开

    公开(公告)号:EP3965422A1

    公开(公告)日:2022-03-09

    申请号:EP21194356.8

    申请日:2021-09-01

    Applicant: Lemon Inc.

    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 comprises access units each comprising one or more pictures each belonging to a layer according to a video coding format. The video coding format defines multiple profiles. The media file format specifies that the bitstream is represented in a file having a specific brand, and that one or more profiles used for representing the video in the bitstream are agnostic of the specific brand.

    DATA PROCESSING METHOD, DEVICE, COMPUTER APPARATUS AND STRORAGE MEDIUM

    公开(公告)号:EP4488837A1

    公开(公告)日:2025-01-08

    申请号:EP24181568.7

    申请日:2024-06-12

    Abstract: The present disclosure provides a data processing method, a device, a computer apparatus (500) and a storage medium, wherein the method includes: in response to a target disk receiving at least one write request within a preset time period, determining a size threshold value for classifying a data update type according to a size of write data respectively indicated by each write request; determining a data update type corresponding to each write request according to a size of each write request and the size threshold value; dividing write data of the write request to obtain a data block according to a preset data block size, and caching the data block in a cache region of the target disk corresponding to the data update type, the target disk has multiple types of cache regions configured therein, different cache regions are configured to support caching of data with different update frequencies. Embodiments of the present disclosure divide data blocks of different data update types into different cache regions, which can efficiently manage write data of different update frequencies.

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