Processing media data using a generic descriptor for file format boxes

    公开(公告)号:AU2018299983A1

    公开(公告)日:2020-01-16

    申请号:AU2018299983

    申请日:2018-07-10

    Applicant: QUALCOMM INC

    Abstract: In one example, a device for retrieving media data includes a memory configured to store media data, and a processor implemented in circuitry and configured to: process a descriptor of a manifest file of media content including the media data, the descriptor corresponding to an adaptation set of the media content and including data representative of a box of file level information that describes a property of a track of a media file of the media content including media data of the adaptation set, determine whether to retrieve the media data of the adaptation set according to the data representative of the file level information, and in response to determining to retrieve the media data, send a request to retrieve the media data.

    Enhanced region-wise packing and viewport independent HEVC media profile

    公开(公告)号:AU2018299989A1

    公开(公告)日:2019-12-19

    申请号:AU2018299989

    申请日:2018-07-10

    Applicant: QUALCOMM INC

    Abstract: A device for processing media content can be configured to obtain, from a region-wise packing box within a video file, a first set of values that indicate a first size and first position for a first packed region of media content and a second set of values that indicate a second size and second position for a second packed region of the media content, wherein the first set of values and the second set of values are in relative units to an upper-left corner luma sample of an unpacked; unpack the first packed region to produce a first unpacked region; form a first projected region from the first unpacked region; unpack the second packed region to produce a second unpacked region; and form a second projected region from the second unpacked region, the second projected region being different than the first projected region.

    PROCESSING CONTINUOUS MULTI-PERIOD CONTENT

    公开(公告)号:CA2939250C

    公开(公告)日:2019-09-10

    申请号:CA2939250

    申请日:2015-03-24

    Applicant: QUALCOMM INC

    Abstract: In one example, a device includes one or more processors configured to determine that a manifest file for media content indicates that the media content includes a first period and a second period, that the manifest file indicates that the first and second periods are continuous, and that advertisement media data is available for insertion between the first and second periods, select a first adaptation set in the first period based at least in part on characteristics signaled for the first adaptation set, retrieve media data of the first adaptation set based on the selection of the first adaptation set, retrieve the advertisement media data, and retrieve media data of a second adaptation set in the second period that the manifest file indicates is associated with the first adaptation set based on the selection of the first adaptation set and store the retrieved media data to a memory.

    Signalling of essential and non-essential video supplemental information

    公开(公告)号:AU2018237153A1

    公开(公告)日:2019-08-29

    申请号:AU2018237153

    申请日:2018-03-21

    Applicant: QUALCOMM INC

    Abstract: In various implementations, provided are techniques, as well as systems that implement these techniques, for SEI messages that distinguish essential information from non-essential information. In various implementations, an encoder can be configured to determine whether information associated with video data is essential or is not essential. In various implementations, different types of SEI messages can be defined, where one or more of these types of SEI messages can indicate whether information associated with a particular video is essential or not essential. Essential information is required for presenting the video data, and is not required for decoding the video data.

    ENHANCED BLOCK-REQUEST STREAMING SYSTEM USING SIGNALING OR BLOCK CREATION

    公开(公告)号:MY163822A

    公开(公告)日:2017-10-31

    申请号:MYPI2012001309

    申请日:2010-09-22

    Applicant: QUALCOMM INC

    Abstract: A BLOCK-REQUEST STREAMING SYSTEM PROVIDES FOR IMPROVEMENTS IN THE USER EXPERIENCE AND BANDWIDTH EFFICIENCY OF SUCH SYSTEMS, TYPICALLY USING AN INGESTION SYSTEM (103) THAT GENERATES DATA IN A FORM TO BE SERVED BY A CONVENTIONAL FILE SERVER (HTTP, FTP, OR THE LIKE), WHEREIN THE INGESTION SYSTEM (103) INTAKES CONTENT AND PREPARES IT AS FILES OR DATA ELEMENTS TO BE SERVED BY THE FILE SERVER. THE SYSTEM MIGHT INCLUDE CONTROLLING THE SEQUENCE, TIMING AND CONSTRUCTION OF BLOCK REQUESTS, TIME BASED INDEXING, VARIABLE BLOCK SIZING, OPTIMAL BLOCK PARTITIONING, CONTROL OF RANDOM ACCESS POINT PLACEMENT, INCLUDING ACROSS MULTIPLE PRESENTATION VERSIONS, DYNAMICALLY UPDATING PRESENTATION DATA, AND/OR EFFICIENTLY PRESENTING LIVE CONTENT AND TIME SHIFTING.

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