公开(公告)号：US20180176276A1

公开(公告)日：2018-06-21

申请号：US15384143

申请日：2016-12-19

Applicant: Facebook, Inc.

Inventor： Sonal Gandhi ,  Sabyasachi Roy ,  Amit Puntambekar ,  Michael Hamilton Coward ,  Mathieu R. Henaire

IPC: H04L29/06 ,  H04L12/26 ,  H04L29/08 ,  H04L12/58

Abstract: In one embodiment, a computer server machine generates a time map associated with the video stream. The video stream comprises one or more time slices. The computer server machine identifies a non-relevant time frame. The computer machine receives a comment and a localized comment time stamp, and associates the comment with one or more time slices. One or more client devices communicates a request for one or more time slices to the computer server machine, and the computer server machine determines whether the localized comment time stamp is within the requested one or more time slices. When the localized comment time stamp is within the requested one or more time slices, computer server machine transforms the localized time stamp to a synchronized comment time stamp. Computer server machine sends information regarding the synchronized comment time stamp to the one or more client devices.

公开(公告)号：US20190215542A1

公开(公告)日：2019-07-11

申请号：US15863804

申请日：2018-01-05

Applicant: Facebook, Inc.

Inventor： Sonal Gandhi ,  Mathieu R. Henaire ,  Amit Puntambekar

IPC: H04N21/2368 ,  H04N21/233 ,  G10L19/012 ,  H04N21/2187 ,  H04N21/236 ,  G11B27/10 ,  H04N21/242 ,  H04N21/234 ,  H04N21/235 ,  H04N21/8547

CPC classification number: H04N21/2368 ,  G10L19/012 ,  G11B27/10 ,  H04N21/2187 ,  H04N21/233 ,  H04N21/234 ,  H04N21/23418 ,  H04N21/2353 ,  H04N21/23605 ,  H04N21/23608 ,  H04N21/242 ,  H04N21/8456 ,  H04N21/8547

Abstract: In one embodiment, a method includes receiving a series of a series of audio-and-video segment pairs in a live video feed. The series of audio-and-video segment pairs is traversed, comparing the end-time of a current audio-and-video segment with the start-time of the next audio-and-video segment pair, in the sequence, and identifying any time gap between consecutive audio-and-video segment pairs. When a time gap is identified, the end-time of a current segment pair is subtracted from the start time of the next segment-pair to define an offset time, and subsequent start times of segment pairs in the sequence are adjusted based on this offset time. If after adjusting a start time of the next segment-pair by the offset time, a gap in the audio segment remains, then the gap is filled with an encoded silence sequence.

公开(公告)号：US10425378B2

公开(公告)日：2019-09-24

申请号：US15384143

申请日：2016-12-19

Applicant: Facebook, Inc.

Inventor： Sonal Gandhi ,  Sabyasachi Roy ,  Amit Puntambekar ,  Michael Hamilton Coward ,  Mathieu R. Henaire

IPC: H04L29/06 ,  H04L12/26 ,  H04L29/08 ,  H04L12/58

Abstract: In one embodiment, a computer server machine generates a time map associated with the video stream. The video stream comprises one or more time slices. The computer server machine identifies a non-relevant time frame. The computer machine receives a comment and a localized comment time stamp, and associates the comment with one or more time slices. One or more client devices communicates a request for one or more time slices to the computer server machine, and the computer server machine determines whether the localized comment time stamp is within the requested one or more time slices. When the localized comment time stamp is within the requested one or more time slices, computer server machine transforms the localized time stamp to a synchronized comment time stamp. Computer server machine sends information regarding the synchronized comment time stamp to the one or more client devices.

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：US10412425B2

公开(公告)日：2019-09-10

申请号：US15863804

申请日：2018-01-05

Applicant: Facebook, Inc.

Inventor： Sonal Gandhi ,  Mathieu R. Henaire ,  Amit Puntambekar

IPC: H04N21/2368 ,  H04N21/236 ,  H04N21/235 ,  H04N21/234 ,  H04N21/242 ,  H04N21/8547 ,  H04N21/2187 ,  G10L19/012 ,  H04N21/233 ,  G11B27/10

Abstract: In one embodiment, a method includes receiving a series of a series of audio-and-video segment pairs in a live video feed. The series of audio-and-video segment pairs is traversed, comparing the end-time of a current audio-and-video segment with the start-time of the next audio-and-video segment pair, in the sequence, and identifying any time gap between consecutive audio-and-video segment pairs. When a time gap is identified, the end-time of a current segment pair is subtracted from the start time of the next segment-pair to define an offset time, and subsequent start times of segment pairs in the sequence are adjusted based on this offset time. If after adjusting a start time of the next segment-pair by the offset time, a gap in the audio segment remains, then the gap is filled with an encoded silence sequence.