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公开(公告)号：US11606574B2
公开(公告)日：2023-03-14
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.
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公开(公告)号：US10931725B2
公开(公告)日：2021-02-23
申请号：US16147527
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Christopher M. Garrido , Thomas P. Devanneaux , Yan Yang , Ming Jin , Vu H. Chiem , Patrick Miauton , Karthick Santhanam , David L. Biderman , Hsien-Po Shiang , Eric L. Chien , Xiaoxiao Zheng , Bess C. Chan , Komei Harada , Dazhong Zhang
Abstract: A device implementing a system for audio-video conferencing using multiple stream identifiers includes a processor configured to receive, from a sending device, indication of a first content stream and a first stream identifier, and indication of a second content stream and a second stream identifier associated. The first content stream and the second content stream correspond to different bit rates of streaming content. The processor is configured to receive, from a receiving device, a request to subscribe to the second content stream, the request including the second stream identifier, and receive, from the sending device, an indication that the second stream identifier has been associated with the first content stream. The processor is configured to forward, to the receiving device, the first content stream based on the request to subscribe to the second content stream and on the indication that the second stream identifier has been associated with the first content stream.
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公开(公告)号：US20190104163A1
公开(公告)日：2019-04-04
申请号：US16147527
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Christopher M. Garrido , Thomas P. Devanneaux , Yan Yang , Ming Jin , Vu H. Chiem , Patrick Miauton , Karthick Santhanam , David L. Biderman , Hsien-Po Shiang , Eric L. Chien , Xiaoxiao Zheng , Bess C. Chan , Komei Harada , Dazhong Zhang
Abstract: A device implementing a system for audio-video conferencing using multiple stream identifiers includes a processor configured to receive, from a sending device, indication of a first content stream and a first stream identifier, and indication of a second content stream and a second stream identifier associated. The first content stream and the second content stream correspond to different bit rates of streaming content. The processor is configured to receive, from a receiving device, a request to subscribe to the second content stream, the request including the second stream identifier, and receive, from the sending device, an indication that the second stream identifier has been associated with the first content stream. The processor is configured to forward, to the receiving device, the first content stream based on the request to subscribe to the second content stream and on the indication that the second stream identifier has been associated with the first content stream.
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