Divx, LLC

Sonic Ip, Inc.

Akamai Technologies, Inc.

Rovi Guides, Inc.

Other

United Video Properties, Inc.

Divx Cf Holdings LLC

Kourosh Soroushian

Jason A Braness

Shaiwal Priyadarshi

Auke Sjoerd Van Der Schaar

Francis Yee-Dug Chan

Roland Osborne

Tung Lin

Daniel Salmonsen

Eric William Grab

William David Amidei

Abhishek Shivadas

William T Frantz

Evan Wallin

Michael John Floyd

John Funnell

Jerome Vashisht-Rota

Andrew Jeffrey Wood

Song Cen

Ben Ziskind

Porfirio Landeros

Francois Gravel

Dan Salmonsen

Robert O Eifrig

Nikolay Topilski

Thomas Steven Woods

Christopher Dow

Brian Fife

John L Kelley

Michael Floyd

Alexander Ivanov

Thomas George

Steve R Bramwell

Francis Chan

Scott Douglas

Jim Reesman

Xi Xu

Pankaj Chaudhari

Robert Labonte

John Kelley

Systems and methods for application identification in accordance with embodiments of the invention are disclosed. In one embodiment, a user device includes a processor and memory configured to store an application, a session manager, an application identifier, and at least one shared library, and the processor is configured by the session manager to communicate the application identifier and the application identifier data to an authentication server and permit the execution of the application in response to authentication of the application by the authentication server.

Systems and methods for application identification

Systems and methods for performing trick play functionality using trick play streams during adaptive bitrate streaming in accordance with embodiments of the invention are disclosed. One embodiment includes requesting a video container index from a video container file containing a video stream from a plurality of alternative streams of video; requesting at least one portion of the video stream using at least one entry from the video container index; decoding the at least one portion of the video stream; receiving at least one user instruction to perform a visual search of the media; requesting a trick play container index from a trick play container file containing a trick play stream; requesting at least one frame of video from the at least one trick play stream; and decoding and displaying the at least one frame of video from the trick play stream.

Systems and methods for performing adaptive bitrate streaming

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.

Chunk header incorporating binary flags and correlated variable-length fields

Systems and methods for providing multimedia content from one process or component to another process or component over an unsecured connection are provided. One embodiment includes obtaining the cryptographic information, extracting the at least partially encrypted video data from the container file to create an elementary bitstream, enciphering the cryptographic information, inserting the cryptographic information in the elementary bitstream, providing the elementary bitstream to a video decoder, extracting the cryptographic information from the elementary bitstream at the video decoder, deciphering the cryptographic information, decrypting the elementary bitstream with the cryptographic information and decoding the elementary bitstream for rendering on a display device using the video decoder.

Systems and methods for secure playback of encrypted elementary bitstreams

The invention provides a system and method for monitoring adaptive streaming media, including but not limited to HTTP Live Streaming (HLS) and Dynamic Adaptive Streaming over HTTP (MPEG-DASH), and tracking SCTE-35 markers. The system parses a media playlist, identifies cue-in and cue-out markers, computes and compares the measured and expected durations of ad blocks, generates alerts for mismatches, and communicates findings. This system is capable of accurately determining the cue-in and cue-out times of advertisements in media streams. The invention enhances the accuracy of ad placement, ensuring robustness, adaptability, and effectiveness of advertising campaigns in streaming media.

System and method for monitoring HLS streams and tracking SCTE-35 markers

A system and method for monitoring adaptive streaming content with selectable alert sensitivity modes and playlist alerting functionality are provided. The method includes downloading manifest files and segments of adaptive streaming content using a computer server. Alerts are generated based on different sensitivity modes for rebuffering events and stream outages. The system provides for stream outage alerting functionality and allows users to choose between the most sensitive mode, normal sensitivity mode, and the least sensitive mode to receive appropriate alerts. The invention is applicable to various adaptive streaming protocols, such as HTTP Live Streaming (HLS), Dynamic Adaptive Streaming over HTTP (DASH), and Common Media Application Format (CMAF).

Monitoring adaptive streaming content with selectable alert sensitivity modes and playlist alerting functionality

Systems and methods for streaming and playing back video having a variety of resolutions, frame rates, and/or sample aspect ratios, where the video streams are encoded at one of a number of maximum bit rate levels, in accordance with embodiments of the invention are disclosed. One embodiment includes a processor, and storage containing data relating combinations of resolution and frame rates to maximum bitrates, where a plurality of resolution and frame rates that are related to the same maximum bitrate form a maximum bitrate level. In addition, an encoding application configures the processor to encode a video stream as a plurality of video streams having different resolutions and frame rates, where the target maximum bitrate used during the encoding is selected based upon the maximum bitrate levels of the resolution and frame rate combinations indicated within the data relating combinations of resolution and frame rates to maximum bitrates.

Systems and methods for encoding and streaming video encoded using a plurality of maximum bitrate levels

System and methods for selecting one of the alternative streams of encoded media from a group of alternative streams of encoded media for use during start-up of playback of the encoded media in accordance with embodiments of this invention are disclosed. The systems and methods begin by determining an estimated stability period for a current bandwidth of a communicative connection between the playback device and a remote system providing the alternative streams of encoded. A test process is then performed on the streams of encoded media to select one of streams of encoded media that provides portions of said encoded media such that an underflow condition does not occur during the estimated stability period. The streaming of encoded media is then commenced by requesting the portions of encoded media be transmitted from the remote server using the selected stream.

System and method for decreasing an initial buffering period of an adaptive streaming system

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.

Systems and methods for playing back multimedia files incorporating reduced index structures

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.

Selection of resolutions for seamless resolution switching of multimedia content

Growing community of inventors

San Diego, CA, United States of America

Kourosh Soroushian