A method and system for using steganographically-encoded time information as a basis to control when a client carries out a content-related action. The client processes for presentation one or more linear media streams, each defining a respective time sequence of frames of media content, and at least one of the streams being steganographically encoded with at least one watermark at a respective time-point within the linear media stream, the watermark encoding a timestamp of the respective time-point within the linear media stream according to a server clock. The client extracts the timestamp from the watermark and computes a time offset based on a difference between the extracted timestamp and a current time according to a client clock. And the client uses the computed time offset as a basis to determine when the client should carry out a content-related action in a given one of the one or more linear media streams.

The present disclosure relates to an electronic device and its execution method and a computer-readable medium. An electronic device, comprising: a memory having instructions stored thereon; a processor configured to execute instructions stored on the memory to cause the electronic device to perform the following operations: analyzing an original video stream being played to determine start time and duration of a first video stream part to be replaced in the original video stream; retrieving a second video stream part with the same duration; playing the second video stream part in a front end at the determined start time to play the original video stream in a backend; and playing the original video stream in the front end after finishing playing the second video stream part.

Methods and systems of providing alternative targeted advertising (TAD) content are shown and disclosed. In one embodiment, the method includes outputting a first TAD content during a TAD window, and receiving at least one user input requesting different TAD content during the TAD window. The method additionally includes outputting the different TAD content instead of the first TAD content during the TAD window after at least one predetermined amount of time from start of the TAD window in response to the at least one user input. In some embodiments, the method may further include re-outputting the first TAD content instead of the different TAD content during the TAD window in response to receiving user input requesting different TAD content when the predetermined amount of time associated with each of the different TAD content already has elapsed before receiving the user input.

A method may include serially joining different video clips from videos of different historical competitions to form a composite video competition, the different video clips comprising an indeterminate subset of clips drawn from a larger pool of clips, wherein each clip from a historical competition has an associated partial result contribution to a final result of the historical competition further include presenting a result during the composite video competition, the result comprising a linked combination of the partial result contributions from the different video clips.

A method for signalling, to a terminal, substitution of an item of content, broadcast via a broadcast network to which the terminal is connected, with a substitute item of content. Such a method includes: obtaining a substitute information packet including time information indicating a time of execution, by the terminal, of an action for substituting the broadcast item of content with the substitute item of content, wherein the time information corresponds to a date of rendering of an image of the broadcast item of content with reference to a reference clock embedded in the broadcast item of content; generating an event notification message including the time information; and inserting the event notification message into a data flow conveying the item of content broadcast within the broadcast network.

Disclosed are a hypertext transfer protocol (HTTP) request transmission method and device. The HTTP request transmission method and device resolve a problem that data finally obtained through splicing is invalid because dividing an original HTTP request into a plurality of HTTP requests to pull data from different content distribution network (CDN) servers may cause inconsistency of the pulled data. When an electronic device needs to download data from a plurality of CDN servers, an overlapping range may be designed for byte ranges allocated to the different CDN servers. This means that the electronic device downloads data in the overlapping range from all the different CDN servers. Therefore, this part of data is used to check consistency of the data pulled from the different CDN servers. When determining that the data pulled from the different CDN servers is consistent, the electronic device may splice the data to obtain finally required data.

In one aspect, a method includes while a first content-presentation device is performing a content-replacement operation in which the first content-presentation device outputs a replacement advertisement segment in place of an advertisement segment, determining, by a computing system, that the advertisement segment is not an expected modifiable advertisement segment. The method also includes in response to determining that the advertisement segment is not the expected modifiable advertisement segment, determining, by the computing system, that the advertisement segment is ineligible for replacement The method also includes in response to determining that the advertisement segment is ineligible for replacement, causing, by the computing system, at least one content-presentation device to perform, at a subsequent content-replacement opportunity, a corrective content-replacement operation in which the at least one content-presentation device outputs the advertisement segment in place of a subsequent modifiable advertisement segment that the at least one content-presentation device is scheduled to receive.

An Event Streams ‘event’ which contains information about ads is sent via ATSC 3.0 to a receiver player along with an xlinkResolution signal. This information includes but is not limited to time stamps for when the ads will start and stop. When this xlinkResolution is sent to the receiver player, the receiver player sends a notification to a broadcaster app containing the information about start and stop time for presenting the ad. Using this information, the broadcaster app updates itself so that, for example, the broadcaster app can present a message on a user interface regarding the subject of the ad, or present content related to but different from the ad along with the ad itself.

A method for distributing video content across a network, the method comprising: providing video data to a primary data source, associating control data with the video data, broadcasting the video data with associated control data from the primary data source to one or more user devices across the network, providing a media player on the respective user devices which is operable in response to reading the control data to create auxiliary data locally on the respective user devices while the media player is playing the video data, creating the auxiliary data locally on the respective user devices while the media player is playing the video data locally on the respective user devices. The control data defines one or more elements of the auxiliary data to be created by the media player including the elements of the auxiliary data which are to be retrieved from the primary data source and one or more secondary data sources.

A system for providing default content enhanced with supplemental content includes processing hardware and a memory storing a software code. The processing hardware executes the software code to receive a content stream including multiple video frames, a first video frame of the multiple video frames including first default content, first supplemental content, and first encoded metadata, and to decode the first encoded metadata of the first video frame to produce first decoded metadata. The processing hardware further executes the software code to select, using the first decoded metadata, at least a first portion of the first supplemental content for use in enhancing the first default content, transfer, using the first decoded metadata, the selected first portion of the first supplemental content to one or more predetermined locations in the first default content to produce an enhanced first video content, and output the enhanced first video content to a display device.