A method and apparatus for an adaptive Hypertext Transfer Protocol (HTTP) streaming service using metadata of content are provided. The metadata may include one or more BaseURL elements. Uniform Resource Locators (URLs) of segments forming media may be generated based on the BaseURL elements. Additionally, a URL of a segment may be generated by mapping a BaseURL element among the BaseURL elements to a sourceURL attribute of the segment. Segments indicated by generated URLs may be identical to each other.

A method and device for encoding a captured screenshot and controlling program switching on an electronic device based on the captured screenshot. The method includes the electronic device performing: capturing from a display a screenshot of a playing program or display content with a stored image data frame; encoding the image data frame of the screenshot, afterwards storing the encoded image data frame of the screenshot; retrieving program information data of the screenshot from a program database; embedding retrieved program information data of the captured screenshot into the encoded image data frame to form an embedded encoded image file. The embedded encoded image file enables the first electronic device or a second electronic device to directly switching to start playing the program or displaying the content on the electronic device according to the captured screenshot.

A method and device for encoding a captured screenshot and controlling program switching on an electronic device based on the captured screenshot. The method includes the electronic device performing: capturing from a display a screenshot of a playing program or display content with a stored image data frame; encoding the image data frame of the screenshot, afterwards storing the encoded image data frame of the screenshot; retrieving program information data of the screenshot from a program database; embedding retrieved program information data of the captured screenshot into the encoded image data frame to form an embedded encoded image file. The embedded encoded image file enables the first electronic device or a second electronic device to directly switching to start playing the program or displaying the content on the electronic device according to the captured screenshot.

A multicast transmission method for OTT media is provided. According to the method, a terminal sends media description request information corresponding to OTT media to a multicast server; the terminal receives media description information fed back by the multicast server based on the media description request information, wherein the media description information may include multicast information, and the multicast information may include multicast group information; and the terminal receives, according to the multicast group information, a multicast packet from the multicast server, wherein the multicast packet is generated by encapsulating a media index file corresponding to the media description request information and/or a media content file corresponding to the media description request information.

The present invention relates to a device and a method for transmitting and receiving a broadcast signal comprising a subtitling service. Provided in one embodiment of the present invention is a method for transmitting a broadcast signal, the method comprising the steps of: generating a broadcast signal comprising video data and subtitle data; and transmitting the generated broadcast signal. According to the embodiment of the present invention, a transport stream providing a digital broadcast subtitling service using an XML subtitle may be transmitted.

A UE includes a communication unit, a display, at least one sensor, and a processor. The communication unit receives video from a server and the display renders a portion of the video. The sensor determines a pitch and a yaw of the portion of the video and a processor generates metadata that includes the pitch and the yaw.

Comparing images, including: selecting a target image; selecting one or more search images; comparing the target image to a negative image corresponding to each search image to generate an image comparison score for each search image; and identifying the search image with the best image comparison score. Keywords include logging events and frame matching.

Comparing images, including: selecting a target image; selecting one or more search images; comparing the target image to a negative image corresponding to each search image to generate an image comparison score for each search image; and identifying the search image with the best image comparison score. Keywords include logging events and frame matching.

Disclosed is a dynamically adaptable stream segment prefetcher for prefetching stream segments from different media streams with different segment name formats and with different positioning of the segment name iterator within the differing segment name formats. In response to receiving a client issued request for a particular segment of a particular media stream, the prefetcher identifies the segment name format and iterator location using a regular expression matching to the client issued request. The prefetcher then generates prefetch requests based on the segment name format and incrementing a current value for the iterator in the segment name of the client issued request.

A server remote from client device executes an HTML-based virtual client application. Using the HTML-based virtual client application, the server renders an image corresponding to a video frame. The rendered image includes HTML commands. The server generates an HTML wrapper for the rendered image. Generating the HTML wrapper includes converting the HTML commands to HTML primitives that are selected from a subset of available HTML commands. The server sends the HTML wrapper to the client device to be processed by an HTML-based application on the client device to enable the image to be displayed.