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公开(公告)号:US20230067662A1
公开(公告)日:2023-03-02
申请号:US17929603
申请日:2022-09-02
申请人: DIVX, LLC
IPC分类号: H04L65/613 , H04N21/442 , H04N21/637 , H04N21/845 , H04N21/854 , H04L65/80 , H04L67/60 , H04L65/00
摘要: Methods, systems, and computer readable media for controlling delivery of content are provided. In some embodiments, a system for controlling delivery of content is provided. The system includes processing circuitry configured to: transmit, to a server, a plurality of requests for blocks of the content; while at least some of the plurality of requests are still outstanding: detect a change of a service characteristic of a connection between the system and the server; determine a preferred number of outstanding requests; and cancel at least some of the requests from the plurality that are still outstanding based on the preferred number and a count of the requests from the plurality that are still outstanding.
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公开(公告)号:US11539780B2
公开(公告)日:2022-12-27
申请号:US16932559
申请日:2020-07-17
申请人: DIVX, LLC
IPC分类号: H04L67/02 , H04N21/254 , H04L9/40 , H04N21/2343 , H04N21/643 , H04N21/845 , H04N21/6334 , H04N21/4402 , H04N21/2347 , H04N21/462 , H04L65/70 , H04L65/75 , H04L65/612 , H04L65/613
摘要: Systems and methods for quick start-up of playback in accordance with embodiments of the invention are disclosed. Media content may be encoded in a plurality of alternative streams and a quick start-up stream. The quick start-up stream may include media content that is encoded at a lower quality that the alternative streams and may be encrypted with a different, less secure encryption process than that of the alternative streams. During a start-up of playback, the playback device streams the media content from a quick start-up stream until a metric, such as a decryption key for the alternative streams is met. The device then streams the media content from the alternative streams in response to the metric being met.
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53.
公开(公告)号:US11495266B2
公开(公告)日:2022-11-08
申请号:US17157801
申请日:2021-01-25
申请人: DIVX, LLC
摘要: Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with indexes associated with the content data of the multimedia files. Through the use of the indexes, playback of the content is enhanced without significantly increasing the file size of the multimedia file.
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公开(公告)号:US11494428B2
公开(公告)日:2022-11-08
申请号:US17015970
申请日:2020-09-09
申请人: DIVX, LLC
发明人: Kourosh Soroushian , Shaiwal Priyadarshi , Jason Braness , Roland Osborne , William Frantz , Jerome Vashisht-Rota , Daniel Salmonsen , John Funnell , Michael Floyd
IPC分类号: H04N9/80 , H04N9/88 , H04N5/783 , G06F16/438 , H04N9/79 , G11B27/10 , G11B27/30 , G11B27/34 , H04L67/10 , H04N5/76 , H04N7/14 , H04N9/14
摘要: Playback and distribution systems and methods for multimedia files are provided. The multimedia files are encoded with flags associated with the content data of the multimedia files. Through the use of the flags, playback of the content is enhanced without significantly increasing the file size of the multimedia file.
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公开(公告)号:US20220345643A1
公开(公告)日:2022-10-27
申请号:US17810795
申请日:2022-07-05
申请人: DIVX, LLC
发明人: Jason Braness , Jerome Rota , Eric William Grab , Jerald Donaldson , Heather Hitchcock , Damien Chavarria , Michael John Floyd , Brian T. Fudge , Adam H. Li
IPC分类号: H04N5/278 , G11B20/00 , H04N9/804 , H04N5/85 , H04N19/44 , H04N5/265 , H04N5/92 , H04N21/845
摘要: A multimedia file and methods of generating, distributing and using the multimedia file are described. Multimedia files in accordance with embodiments of the present invention can contain multiple video tracks, multiple audio tracks, multiple subtitle tracks, data that can be used to generate a menu interface to access the contents of the file and ‘meta data’ concerning the contents of the file. Multimedia files in accordance with several embodiments of the present invention also include references to video tracks, audio tracks, subtitle tracks and ‘meta data’ external to the file. One embodiment of a multimedia file in accordance with the present invention includes a series of encoded video frames and encoded menu information.
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公开(公告)号:US11457054B2
公开(公告)日:2022-09-27
申请号:US17063439
申请日:2020-10-05
申请人: DIVX, LLC
IPC分类号: H04L65/70 , H04N21/2343 , H04L65/61 , H04N19/33 , H04N21/845
摘要: Systems and methods for the selection of resolutions for seamless resolution switching of multimedia content in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, a source encoder includes a processor configured by a source encoder application to receive multimedia content, where the multimedia content comprises video data having a primary resolution and a primary sample aspect ratio and encode the video data as a set of alternative streams, where a plurality of the streams in the set of alternative streams have different maximum bitrates and resolutions, the resolution of each of the plurality of streams comprises a width and height that are both an integer number of pixels, and both the width and height of each of the plurality of streams is a common fraction of the width and height of the corresponding primary resolution.
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公开(公告)号:US20220256102A1
公开(公告)日:2022-08-11
申请号:US17660166
申请日:2022-04-21
申请人: DIVX, LLC
发明人: Jason Braness , Jerome Rota , Eric William Grab , Jerald Donaldson , Heather Hitchcock , Damien Chavarria , Michael John Floyd , Brian T. Fudge , Adam H. Li
IPC分类号: H04N5/278 , G11B20/00 , H04N5/85 , H04N9/804 , H04N5/92 , H04N19/44 , H04N5/265 , H04N21/845
摘要: A multimedia file and methods of generating, distributing and using the multimedia file are described. Multimedia files in accordance with embodiments of the present invention can contain multiple video tracks, multiple audio tracks, multiple subtitle tracks, data that can be used to generate a menu interface to access the contents of the file and ‘meta data’ concerning the contents of the file. Multimedia files in accordance with several embodiments of the present invention also include references to video tracks, audio tracks, subtitle tracks and ‘meta data’ external to the file. One embodiment of a multimedia file in accordance with the present invention includes a series of encoded video frames and encoded menu information.
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公开(公告)号:US11297263B2
公开(公告)日:2022-04-05
申请号:US17510231
申请日:2021-10-25
申请人: DIVX, LLC
发明人: Jason Braness , Jerome Rota , Eric William Grab , Jerald Donaldson , Heather Hitchcock , Damien Chavarria , Michael John Floyd , Brian T. Fudge , Adam H. Li
IPC分类号: H04N5/278 , H04N19/44 , H04N5/265 , H04N5/85 , H04N5/92 , G11B20/00 , H04N9/804 , H04N21/845
摘要: A multimedia file and methods of generating, distributing and using the multimedia file are described. Multimedia files in accordance with embodiments of the present invention can contain multiple video tracks, multiple audio tracks, multiple subtitle tracks, data that can be used to generate a menu interface to access the contents of the file and ‘meta data’ concerning the contents of the file. Multimedia files in accordance with several embodiments of the present invention also include references to video tracks, audio tracks, subtitle tracks and ‘meta data’ external to the file. One embodiment of a multimedia file in accordance with the present invention includes a series of encoded video frames and encoded menu information.
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公开(公告)号:US11272232B2
公开(公告)日:2022-03-08
申请号:US16729102
申请日:2019-12-27
申请人: DIVX, LLC
IPC分类号: H04N21/242 , H04N21/2387 , H04L65/60 , H04L7/00 , H04N21/43 , H04L65/80 , H04L65/61
摘要: Systems and methods for synchronizing the playback of OTT or other time sensitive content on multiple playback devices is disclosed. The systems and methods include receiving time information based on a network time source in the playback devices. The playback clock in each playback device is set based upon the time information. Stream initiation information derived using the time information from the network time source is received by each of the playback device from the media provider. The playback devices use the stream initiation information to adjust the presentation time stamps of the frames of the media content in the stream.
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60.
公开(公告)号:US11245938B2
公开(公告)日:2022-02-08
申请号:US16725795
申请日:2019-12-23
申请人: DIVX, LLC
IPC分类号: H04L29/06 , H04N21/2347 , H04N21/235 , H04N21/4405 , H04N21/435 , H04L9/06
摘要: Systems and methods for partial frame encryption in accordance with embodiments of the invention are disclosed. In one embodiment, the method receives a video bitstream that includes several frames, each frame including several independently encoded compression units within the frame, encrypts a portion of each of several compression units in several frames, and generates an output bitstream that includes the several independently encoded compression units including the encrypted portions of the compression units.
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