公开(公告)号：US10785279B2

公开(公告)日：2020-09-22

申请号：US15394699

申请日：2016-12-29

Applicant: Facebook, Inc.

Inventor： Yaming He ,  Zhengping Zuo

IPC: H04L29/06 ,  H04N19/132 ,  H04N19/164 ,  H04N19/107 ,  H04N19/124 ,  H04N19/146 ,  H04N19/172 ,  H04L12/26

Abstract: A video encoder may be put in a starve mode during a low latency operation in which the video encoder may be operated in a mode that allows video frames to be encoded without any interdependencies such as motion compensation. At least one encoding parameter of the video encoding is selected such that, for each resulting encoded video frame, the video frame fits in exactly one application layer packet.

公开(公告)号：US10523939B2

公开(公告)日：2019-12-31

申请号：US15177137

申请日：2016-06-08

Applicant: Facebook, Inc.

Inventor： Yaming He ,  Zhengping Zuo

IPC: H04N19/124 ,  H04N19/154 ,  H04N19/147 ,  H04N19/132 ,  H04N19/156 ,  H04N19/177

Abstract: Embodiments are described for dynamically adapting video encoding to maintain a nearly stable frame rate based on processor capabilities and bandwidth, for example, by varying a quantization parameter. The quality of the encoded video can be varied to maintain the nearly constant frame rate, which may be measured from the number of encoded video frames being transmitted over a network interface.

公开(公告)号：US20180192061A1

公开(公告)日：2018-07-05

申请号：US15394699

申请日：2016-12-29

Applicant: Facebook, Inc.

Inventor： Yaming He ,  Zhengping Zuo

IPC: H04N19/169 ,  H04L29/06 ,  H04N19/44

CPC classification number: H04L65/608 ,  H04L43/0864 ,  H04L65/602 ,  H04L65/607 ,  H04L65/80 ,  H04N19/107 ,  H04N19/124 ,  H04N19/132 ,  H04N19/146 ,  H04N19/164 ,  H04N19/172

Abstract: A video encoder may be put in a starve mode during a low latency operation in which the video encoder may be operated in a mode that allows video frames to be encoded without any interdependencies such as motion compensation. At least one encoding parameter of the video encoding is selected such that, for each resulting encoded video frame, the video frame fits in exactly one application layer packet.

公开(公告)号：US11190570B2

公开(公告)日：2021-11-30

申请号：US16998654

申请日：2020-08-20

Applicant: Facebook, Inc.

Inventor： Yaming He ,  Zhengping Zuo

IPC: H04L29/06 ,  H04N19/132 ,  H04N19/164 ,  H04N19/107 ,  H04N19/124 ,  H04N19/146 ,  H04N19/172 ,  H04L12/26

Abstract: A video encoder may be put in a starve mode during a low latency operation in which the video encoder may be operated in a mode that allows video frames to be encoded without any interdependencies such as motion compensation. At least one encoding parameter of the video encoding is selected such that, for each resulting encoded video frame, the video frame fits in exactly one application layer packet.

公开(公告)号：US20200382575A1

公开(公告)日：2020-12-03

申请号：US16998654

申请日：2020-08-20

Applicant: Facebook, Inc.

Inventor： Yaming He ,  Zhengping Zuo

IPC: H04L29/06 ,  H04N19/132 ,  H04N19/164 ,  H04N19/107 ,  H04N19/124 ,  H04N19/146 ,  H04N19/172 ,  H04L12/26

Abstract: A video encoder may be put in a starve mode during a low latency operation in which the video encoder may be operated in a mode that allows video frames to be encoded without any interdependencies such as motion compensation. At least one encoding parameter of the video encoding is selected such that, for each resulting encoded video frame, the video frame fits in exactly one application layer packet.

公开(公告)号：US20190190976A1

公开(公告)日：2019-06-20

申请号：US15849424

申请日：2017-12-20

Applicant: Facebook, Inc.

Inventor： Minchuan Chen ,  Shankar Lakshmi Regunathan ,  Sonal Gandhi ,  Yaming He ,  Amit Puntambekar ,  Michael Hamilton Coward

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/485 ,  H04N21/4402 ,  H04N21/472 ,  H04N21/462 ,  G06N99/00 ,  G06F17/30

Abstract: In one embodiment, a method includes receiving multimedia content information associated with at least one segment of a multimedia content, receiving a request to view the at least one segment of the multimedia content from a client device, logging playback information associated with the viewing of the at least one segment of the multimedia content, determining a multimedia quality metric associated with the at least one segment of multimedia content based in part upon a portion of the received multimedia content information and a portion of the logged playback information, and classifying the at least one segment of the multimedia content with the multimedia quality metric.

公开(公告)号：US10587669B2

公开(公告)日：2020-03-10

申请号：US15849424

申请日：2017-12-20

Applicant: Facebook, Inc.

Inventor： Minchuan Chen ,  Shankar Lakshmi Regunathan ,  Sonal Gandhi ,  Yaming He ,  Amit Puntambekar ,  Michael Hamilton Coward

IPC: H04L29/06 ,  H04L29/08 ,  H04N21/485 ,  H04N21/4402 ,  H04N21/462 ,  H04N21/472 ,  G06N20/00 ,  G06F16/40 ,  H04N21/414 ,  H04N21/845 ,  H04N21/234 ,  H04N19/154 ,  H04L12/58 ,  H04N19/10 ,  H04N19/146

Abstract: In one embodiment, a method includes receiving multimedia content information associated with at least one segment of a multimedia content, receiving a request to view the at least one segment of the multimedia content from a client device, logging playback information associated with the viewing of the at least one segment of the multimedia content, determining a multimedia quality metric associated with the at least one segment of multimedia content based in part upon a portion of the received multimedia content information and a portion of the logged playback information, and classifying the at least one segment of the multimedia content with the multimedia quality metric.

公开(公告)号：US20170195672A1

公开(公告)日：2017-07-06

申请号：US15177137

申请日：2016-06-08

Applicant: Facebook, Inc.

Inventor： Yaming He ,  Zhengping Zuo

IPC: H04N19/124 ,  H04N19/117 ,  H04N19/146 ,  H04N19/154 ,  H04N19/59

CPC classification number: H04N19/124 ,  H04N19/132 ,  H04N19/147 ,  H04N19/154 ,  H04N19/156 ,  H04N19/177

Abstract: Embodiments are described for dynamically adapting video encoding to maintain a nearly stable frame rate based on processor capabilities and bandwidth, for example, by varying a quantization parameter. The quality of the encoded video can be varied to maintain the nearly constant frame rate, which may be measured from the number of encoded video frames being transmitted over a network interface.