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1. WO2021067593 - USE OF EXTENSIONS IN GLTF2 SCENE DESCRIPTION TO SUPPORT VIDEO AND AUDIO DATA

Publication Number WO/2021/067593
Publication Date 08.04.2021
International Application No. PCT/US2020/053793
International Filing Date 01.10.2020
IPC
H04N 21/854 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
85Assembly of content; Generation of multimedia applications
854Content authoring
H04N 21/8543 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
85Assembly of content; Generation of multimedia applications
854Content authoring
8543using a description language, e.g. MHEG  or XML
H04N 21/8547 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
85Assembly of content; Generation of multimedia applications
854Content authoring
8547involving timestamps for synchronizing content
H04N 21/845 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
845Structuring of content, e.g. decomposing content into time segments
H04N 21/236 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
236Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
H04N 21/434 2011.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand
40Client devices specifically adapted for the reception of, or interaction with, content, e.g. STB ; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronizing decoder's clock; Client middleware
434Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams or extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • BOUAZIZI, Imed
  • STOCKHAMMER, Thomas
  • PETERS, Nils Günther
Agents
  • DAWLEY, Brian
Priority Data
17/038,75430.09.2020US
62/909,09501.10.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) USE OF EXTENSIONS IN GLTF2 SCENE DESCRIPTION TO SUPPORT VIDEO AND AUDIO DATA
(FR) UTILISATION D'EXTENSIONS DANS UNE DESCRIPTION DE SCÈNE GLTF2 PERMETTANT DE PRENDRE EN CHARGE DES DONNÉES VIDÉO ET AUDIO
Abstract
(EN)
An example device for accessing media data includes a memory configured to store media data; and one or more processors implemented in circuitry and configured to: receive a scene description of a GL Transmission Format 2.0 (glTF2) bitstream including a timed media object; determine a position of the timed media object in a presentation environment using the scene description; retrieve current timed media data for the timed media object for a current presentation time; and present the current timed media data according to the position of the timed media object at the current presentation time.
(FR)
La présente invention concerne un dispositif donné à titre d'exemple permettant d'accéder à des données multimédias comprenant une mémoire configurée pour stocker des données multimédias ; et un ou plusieurs processeurs mis en œuvre dans des circuits et configurés pour : recevoir une description de scène d'un flux binaire de format de transmission GL 2.0 (glTF2) comprenant un objet multimédia temporisé ; déterminer une position de l'objet multimédia temporisé dans un environnement de présentation à l'aide de la description de scène ; récupérer des données multimédias synchronisées actuelles correspondant à l'objet multimédia temporisé pour un moment de présentation actuel ; et présenter les données multimédias synchronisées actuelles en fonction de la position de l'objet multimédia temporisé au moment de présentation actuel.
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