A METHOD, AN APPARATUS, A COMPUTER PROGRAM FOR VIDEO CODING

    公开(公告)号:US20180146225A1

    公开(公告)日:2018-05-24

    申请号:US15578288

    申请日:2016-05-31

    Abstract: There are disclosed various methods, apparatuses and computer program products for video encoding. In some embodiments a method comprises including two or more entities into a container file, wherein each entity is a media item or a media track; and indicating in one of the following: the container file or a description of the container file; that the two or more entities are playable in the order they appear in the container file to achieve progressive refinement. In addition, a method, an apparatus and a computer program product for parsing information is provided.

    METHOD AND APPARATUS FOR SIGNALING MULTIPLE MEDIA DATA TYPES

    公开(公告)号:US20230232082A1

    公开(公告)日:2023-07-20

    申请号:US18001817

    申请日:2021-05-24

    CPC classification number: H04N21/84 H04N21/854

    Abstract: A method, apparatus and computer program product are provided to signaling multiple media data types in a container file format, for example, ISOBMFF, in an efficient manner. In the context of a signaling method, media type definitions overloaded in an instance a plurality of media type definitions is present in compatible media type list, wherein a media type definition is associated with a media type. The method then indicates, using the compatible media type list, presence of a plurality of media types in a metadata or multimedia box. Corresponding apparatuses and computer program products are also provided.

    Method and Apparatus for Tile-Relative Addressing in Video Coding

    公开(公告)号:US20220159275A1

    公开(公告)日:2022-05-19

    申请号:US17590254

    申请日:2022-02-01

    Inventor: Miska HANNUKSELA

    Abstract: An apparatus includes at least one processor; and at least one non-transitory memory including computer program code; wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to: receive a picture; encode the picture as one or more slices; and encode, into a slice header of a slice of the one or more slices, a subpicture identifier indicative of a subpicture that comprises the slice; wherein the subpicture identifier is indicative of a subpicture position for the subpicture comprising the slice, the subpicture identifier being among one or more subpicture identifiers indicative of one or more subpicture positions for one or more subpictures comprising one or more slices.

    AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING

    公开(公告)号:US20220159267A1

    公开(公告)日:2022-05-19

    申请号:US17433034

    申请日:2020-02-19

    Abstract: A method comprising: encoding video media content into at least a first representation and a second representation, wherein the first representation comprises a switchable inter-coded picture, wherein the switchable picture has a first characteristic that no pictures preceding the switchable picture in decoding order are used as reference pictures for any non-switchable pictures following the switchable picture in decoding order; and the second representation comprises one or more decoder reset pictures aligned with the switchable pictures of the first representation, wherein the frame rate of the second representation is smaller than or equal to the frame rate of the first representation and the resolutions of the first and the second representation are equal.

    APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING

    公开(公告)号:US20220094909A1

    公开(公告)日:2022-03-24

    申请号:US17419534

    申请日:2019-12-16

    Abstract: There is disclosed a method, an apparatus and a computer program product for video encoding and decoding. In accordance with an embodiment the method comprises obtaining coded data of a sub-picture, the sub-picture belonging to a picture, and the sub-picture belonging to a sub-picture sequence and determining whether to use the sub-picture as a source for a manipulated reference sub-picture. If the determining reveals that the sub-picture is to be used as the source for the manipulated reference sub-picture, the manipulated reference sub-picture is generated from the sub-picture to be used as a reference for a subsequent sub-picture of the sub-picture sequence.

    METHOD AND APPARATUS FOR NON-BINARY PROFILE CONSTRAINT SIGNALING FOR VIDEO CODING

    公开(公告)号:US20210321114A1

    公开(公告)日:2021-10-14

    申请号:US17267174

    申请日:2019-09-10

    Inventor: Miska HANNUKSELA

    Abstract: A method, apparatus and computer program product provide non-binary profile constraints in image or video bitstreams such that a decoder is able to determine whether the decoder can decode the bitstream without completely decoding the bitstream. The method, apparatus and computer program product encode one or more source pictures into a bitstream. The encoding characterized by one or more coding properties (20). The method, apparatus and computer program product further encode a syntax structure indicating the one or more coding properties of the bitstream into or along the bitstream (22). The syntax structure includes a first portion including one or more fixed syntax elements with one or more pre-defined lengths in bits at one or more pre-defined bit positions and a second portion comprising one or more conditional syntax elements. Presence of the conditional syntax element(s) is conditioned based on one or more values associated with the one or more fixed elements.

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