公开(公告)号：US11729418B1

公开(公告)日：2023-08-15

申请号：US17305443

申请日：2021-07-07

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Marc Joliveau ,  Srikanth Kiran Kotagiri ,  Yongjun Wu ,  Yang Yang

IPC: H04N19/11 ,  H04N19/58 ,  H04N19/177 ,  H04N19/577

CPC classification number: H04N19/58 ,  H04N19/177 ,  H04N19/577

Abstract: Techniques are described for adaptive encoding different portions of media content based on content. Characteristics of GOPs of media content can be determined and used to set encoding parameters for the GOs. The GOPs can be encoded such that one GOP is encoded differently than another GOP if they have different characteristics.

公开(公告)号：US11317172B1

公开(公告)日：2022-04-26

申请号：US16915945

申请日：2020-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Yongjun Wu ,  Vasanthakumar Soundararajan ,  Yang Yang ,  Sitaraman Ganapathy ,  Mukund Manikarnike

IPC: H04N21/845 ,  H04N21/43 ,  H04N21/854

Abstract: Techniques for video fragment aware audio packaging that ensure a periodic and best alignment of audio and video fragments at any corresponding audio and video fragments are described. As one example, a video fragment aware audio packaging service determines a number of audio frames for a corresponding video fragment of video frames and generates an audio fragment that includes those audio frames, with flexible choices of video fragment duration, which may be considered and decided for device compatibility or content encoding optimization purposes.

公开(公告)号：US11089329B1

公开(公告)日：2021-08-10

申请号：US15195810

申请日：2016-06-28

Applicant: Amazon Technologies, Inc.

Inventor： Charles Benjamin Franklin Waggoner ,  Marc Joliveau ,  Srikanth Kiran Kotagiri ,  Yongjun Wu ,  Yang Yang

IPC: H04N21/00 ,  H04N19/58 ,  H04N19/577 ,  H04N19/177

Abstract: Techniques are described for adaptive encoding different portions of media content based on content. Characteristics of GOPs of media content can be determined and used to set encoding parameters for the GOs. The GOPs can be encoded such that one GOP is encoded differently than another GOP if they have different characteristics.

公开(公告)号：US10798399B1

公开(公告)日：2020-10-06

申请号：US15837884

申请日：2017-12-11

Applicant: Amazon Technologies, Inc.

Inventor： Hai Wei ,  Charles Benjamin Franklin Waggoner ,  Yang Yang ,  Srinivas Rajagopalan ,  Deepthi Nandakumar ,  Lei Li

IPC: H04N19/46 ,  H04N19/182 ,  H04N19/172 ,  H04N19/132

Abstract: An adaptive video compression system may receive video data to be compressed, such as for delivery to a user device by a video streaming service. For example the video data may be an entire video file or a segment of a video file. The adaptive video compression system determines a suitable encoding scheme for compressing the video data. In order to determine the encoding scheme, the video data may be analyzed to extract a plurality of features interests of the video data, which may represent one or more characteristics of the video data. The features may be concatenated and collectively expressed as a feature vector. The feature vector is then used to determine a classification for the video data. Accordingly, an encoding scheme is determined for the video data based on the classification of the video data, and applied to video data to compress the video data.

公开(公告)号：US10958702B1

公开(公告)日：2021-03-23

申请号：US16128205

申请日：2018-09-11

Applicant: Amazon Technologies, Inc.

Inventor： Yang Yang ,  Yongjun Wu ,  Kevin Matthew McCaw ,  Satheesh Ramalingam ,  Viet Anh To ,  Alon Dulce

IPC: H04L29/06 ,  H04N21/2387 ,  H04N21/845

Abstract: Systems, methods, and computer-readable media are disclosed for determining and applying a timeout for streaming video. Processing circuitry of a device may request video fragments to be downloaded and played, and if a requested fragment is not downloaded entirely before expiration of a timeout, the device may adjust the timeout to allow the download to complete. A timeout may be set based on available bandwidth and a size of a fragment requested for download, and the timeout may be extended based on network and/or device conditions.

公开(公告)号：US10419773B1

公开(公告)日：2019-09-17

申请号：US15933222

申请日：2018-03-22

Applicant: Amazon Technologies, Inc.

Inventor： Hai Wei ,  Yang Yang ,  Lei Li ,  Amarsingh Buckthasingh Winston ,  Avisar Ten-Ami

IPC: H04N19/46 ,  H04N19/169 ,  H04N19/14 ,  H04N19/132 ,  G06N20/00

Abstract: Methods and apparatus are described in which both supervised and unsupervised machine learning are used to classify video content for compression using encoding profiles that are optimized for each type of video content.