Techniques are described for expanding and/or improving the Advanced Television Systems Committee (ATSC) 3.0 television protocol in robustly delivering the next generation broadcast television services. When automatically switching from presenting a service on a first frequency to a second frequency such as when a mobile receiver is moving through a boundary region between two broadcasters, the current broadcaster application is notified and depending on the context, may continue executing or send data to the new broadcaster application.

Techniques are described for expanding and/or improving the Advanced Television Systems Committee (ATSC) 3.0 television protocol in robustly delivering the next generation broadcast television services. In a boundary region between first and second broadcast stations in which a receiver can pick up signals from both stations, a lower level signaling PLP is used to identify a channel quality metric for identifying the best frequency to receive a broadcast service on which is sent from both stations.

A method comprising: requesting, by a client, an independently coded first representation of a video content component from a server; receiving and playing a first set of data units of the independently coded first representation; requesting a second set of data units of a second representation, said second set of data units being dependently coded on one Receive and play a first set of data units of or more requested or buffered data units of the first set; and requesting a third set of independently coded data units of a third representation.

The following describes techniques to maintain continuity of a live media stream. A media stream includes a first distribution layer with a first set of key frames and a set of delta frames succeeding key frames in the first set of key frames. The media stream also includes a second distribution layer including a second set of key frames, where the second set of key frames contains fewer key frames than the first set of key frames. Using the first and second distribution layers, a client device may subscribe to the media stream with a minimized start-up time and optimized quality of experience among varying complexity of the media content and dynamic network conditions.

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.

Systems, methods, and computer-readable media for porting locally processed media data with low latency to a remote client device via various wireless links are provided. In one example embodiment, a transceiver module may include a local network interface and a controller that may receive a client control signal from a client device over a wireless local area network via the local network interface, transmit a media control signal based on the client control signal to a media device, receive media data based on the media control signal from the media device, and transmit to the client device over the wireless local area network via the local network interface client data based on the media data and a low-latency compression technique. The receipt of the media data and transmission of the client data may be accomplished with substantially no detectable latency. Additional embodiments are also provided.

Prior to receiving a request from a client device for information from a content distribution network (CDN), a Reductive Edging device predictively requests the information from the CDN based on prior user activity and stores it in memory. The Reductive Edging device is thus configured to respond to the request from the client device for information from the CDN with the information stored in the memory prior to receiving the request.

A method for streamed playback of media in a media client from a remote media service includes: a) determining address information for locating the service and for a starting time; b) by the address information, requesting and receiving a first media package from the service; the package having decoder configuration information, one or more frames, associated timing information for playback frames, and a pointer to a subsequent part of the media stream; c) configuring a decoder of the client by the decoder information; d) starting playback of the stream in the client at the starting time by providing the frames to the configured decoder; e) by the pointer, requesting a remaining portion of the media having subsequent frames of the media stream and associated timing information; f) receiving the subsequent frames as a stream and continuing playback by providing the subsequent frames and associated timing information to the configured decoder.

The present disclosure relates to a video playback method and apparatus, a storage medium, and an electronic device. The method comprises: receiving a video playback request, the video playback request comprising first video information, and instructing to playback video data corresponding to the first video information by means of a target page; acquiring second video information corresponding to a video preview page, the video preview page being used to playback video data corresponding to the second video information; and when the first video information and the second video information are the same, performing video playback on the target page based on video playback progress information corresponding to the video preview page and video data loaded on the video preview page. Therefore, the transmission amount of video data can be effectively reduced, and the request response time of the video data and the waiting time of video playback can be shortened.

A method for decoding a picture block is disclosed. The decoding method comprises: reconstructing reference picture from another reference picture of a decoder picture buffer of a first layer of a multi-layered stream and from data decoded from a second layer of said multi-layered stream and storing said reference picture in a decoder picture buffer of said second layer, wherein said reference picture is indicated as not to be displayed; decoding a flag indicating that a subsequently decoded picture of the second layer is not using any inter-layer prediction; and reconstructing a picture block of said subsequently decoded picture at least from said reference picture.