Qualcomm Incorporated

Alibaba Group Holding Limited

Meta Platforms, Inc.

Yu-Chen Sun

Marta Karczewicz

Li Feng Zhang

Kai Zhang

Jianle Chen

Vadim Seregin

Wei-Jung Chien

Xiang Li

Yi-Wen Chen

Shyam Sadhwani

Hsiao-Chiang Chuang

Sungwon Lee

Jian Lou

Yun Zhang

Tsui-shan Chang

Done Bugdayci Sansli

Methods, systems, and storage media to determine an available number of hardware decoders that can be used to process a video feed. The system can receive a select group of participants from a plurality of participants associated with the video call. The system can include identify a video feed for each participant of the select group of participants. The system can send a request for the video feed of each participant of the select group of participants. The system can receive a video feed associated with each of the select group of participants in the video call. The system can allocate a hardware decoder to each participant of the select group based on the request for each video feed. The system can determine operational parameters of at least one of the hardware decoders. The system can include switching the video feed from the hardware decoder to the software decoder.

Systems and methods for video decoder management

Systems and methods are provided for implementing inter-coded resolution-adaptive video coding supported by resizing motion information of a current frame during motion prediction, reducing extensive computational costs and computing time that would be incurred as a result of extensive application of interpolation filters to generate picture information of a reference frame to sub-pixel granularity, and thus reducing computational cost and computing time of decoding as a whole. The methods and systems described herein include determining a ratio of the resolution of a reference frame to the resolution of a current frame; determining a motion vector of the block of the current frame, and calculating at least one pixel coordinate corresponding to the motion vector of the block of the current frame; resizing motion information of the block of the current frame according to a resolution of the reference frame in accordance with the ratio; locating a predictor block of the reference frame in accordance with the resized motion information; and subsequently minimizing or avoiding applying an interpolation filter to a block at the scaled coordinates at the reference frame to generate sub-pixel values of the predictor block.

Resolution-adaptive video coding

A video coder may determine a motion vector of a non-adjacent block of a current picture of the video data. The non-adjacent block is non-adjacent to a current block of the current picture. Furthermore, the video coder determines, based on the motion vector of the non-adjacent block, a motion vector predictor (MVP) for the current block. The video coder may determine a motion vector of the current block. The video coder may also determine a predictive block based on the motion vector of the current block.

Motion vector prediction

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Bellevue, WA, United States of America

Yu-Chen Sun