公开(公告)号：US20170347112A1

公开(公告)日：2017-11-30

申请号：US15168872

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Dazhong ZHANG ,  Jae Hoon KIM ,  Peikang SONG ,  Xiaosong ZHOU ,  Chris CHUNG ,  Hsi-Jung WU

IPC: H04N19/46 ,  H04L12/741 ,  H04L5/00 ,  H04L29/06 ,  H04N19/68

CPC classification number: H04N19/46 ,  H04L5/0055 ,  H04L45/745 ,  H04L65/602 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04N19/68

Abstract: Coding and decoding techniques are disclosed in which a plurality of coding parameter sets is transmitted between an encoder and a decoder, each of which is distinguishable from the others by a respective identifier. When a new frame of video is to be coded, an encoder may identify a coding parameter set to be applied during coding, it may code the new frame according to the identified coding parameter set, and it may transmit the coded frame to the decoder along with an identifier of the coding parameter set used during the coding. A plurality of coding parameter sets is persistent at an encoder and the decoder simultaneously.

公开(公告)号：US20200382806A1

公开(公告)日：2020-12-03

申请号：US16882819

申请日：2020-05-26

Applicant: Apple Inc.

Inventor： Dazhong ZHANG ,  Peikang SONG ,  Beibei WANG ,  Giribalan GOPALAN ,  Albert E. KEINATH ,  Christopher M. GARRIDO ,  David R. CONRAD ,  Hsi-Jung WU ,  Ming JIN ,  Hang YUAN ,  Xiaohua YANG ,  Xiaosong ZHOU ,  Vikrant KASARABADA ,  Davide CONCION ,  Eric L. CHIEN ,  Bess C. CHAN ,  Karthick SANTHANAM ,  Gurtej Singh CHANDOK

IPC: H04N19/507 ,  H04N19/65

Abstract: Techniques are disclosed for coding video data in which frames from a video source are partitioned into a plurality of tiles of common size, and the tiles are coded as a virtual video sequence according to motion-compensated prediction, each tile treated as having respective temporal location of the virtual video sequence. The coding scheme permits relative allocation of coding resources to tiles that are likely to have greater significance in a video coding session, which may lead to certain tiles that have low complexity or low motion content to be skipped during coding of the tiles for select source frames. Moreover, coding of the tiles may be ordered to achieve low coding latencies during a coding session.

公开(公告)号：US20160353118A1

公开(公告)日：2016-12-01

申请号：US15169072

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Dazhong ZHANG ,  Hsi-Jung WU ,  Peikang SONG ,  Yunfei ZHENG ,  Chris Y. CHUNG ,  Jae Hoon KIM ,  Xiaosong ZHOU

IPC: H04N19/184 ,  H04N19/44 ,  H04N19/37 ,  H04N19/40

CPC classification number: H04N19/44 ,  H04N19/85

Abstract: A method of managing resources on a terminal includes determining a number of downloaded video streams active at the terminal, prioritizing the active video streams, assigning a decoding quality level to each active video stream based on a priority assignment for each active video stream, and apportioning reception bandwidth to each active video stream based on an assigned quality level of each active video stream.

Abstract translation: 一种在终端上管理资源的方法包括：确定在终端处活动的下载的视频流的数量，对活动视频流进行优先排序，基于每个活动视频流的优先级分配向每个活动视频流分配解码质量等级，以及分配 基于每个活动视频流的分配质量水平对每个活动视频流的接收带宽。