Certain aspects of the present disclosure provide techniques for delivering video and audio to one or more user devices. A method includes obtaining a video signal and an audio signal that are synchronized in time. The method includes applying a first time delay, greater than a predetermined maximum amount of time delay, to the video signal and outputting the delayed video signal to a display device. The method includes generating a plurality of copies of the audio signal and applying a plurality of time delays to the copies of the audio signal. A different time delay is applied to each of the plurality of copies of the audio signal and each of the plurality of time delays is smaller than the first time delay. The method includes outputting the plurality of delayed copies of the audio signal for broadcast to one or more user devices over a wireless network.

Certain aspects of the present disclosure provide techniques for delivering video and audio to one or more user devices. A method includes obtaining a video signal and an audio signal that are synchronized in time. The method includes applying a first time delay, greater than a predetermined maximum amount of time delay, to the video signal and outputting the delayed video signal to a display device. The method includes generating a plurality of copies of the audio signal and applying a plurality of time delays to the copies of the audio signal. A different time delay is applied to each of the plurality of copies of the audio signal and each of the plurality of time delays is smaller than the first time delay. The method includes outputting the plurality of delayed copies of the audio signal for broadcast to one or more user devices over a wireless network.

A mechanism is provided for remote virtual reality viewing of an event using crowdsourcing. Each video perspective of a plurality of video perspectives of the event is analyzed to identify content and context of the event. A digital virtual reality (VR) experience (VRX) token stream of each video perspective of the plurality of video perspectives is produced based on the identified content and the identified context of the event. Responsive to a remote user initiating a viewing of a virtual reality presentation of the event, a set of digital VRX token streams of the event is presented to the remote user. Responsive to the remote user selecting one digital VRX token stream of the set of digital VRX token streams, the selected digital VRX token stream is presented to the remote user in a virtual reality format.

A method for streaming a 360 degree video over a communications network, wherein the video is streamed in a plurality of chunks, includes selecting a prediction window during which to predict a field of view within the video, the field of view is expected to be visible by a viewer at a time of playback of a next chunk of the video, wherein a duration of the prediction window is based on at least one condition within the communications network, selecting a machine learning algorithm to predict the field of view based on a head movement of the viewer, wherein the machine learning algorithm is selected based on the duration of the prediction window, predicting the field of view based on the head movement of the viewer and the machine learning algorithm, identifying a tile of the next chunk that corresponds to the field of view, and downloading the tile.

An omnidirectional media playback method, a terminal device and a computer readable storage medium. The method comprises: obtaining viewpoint looping information associated to a current viewpoint from omnidirectional media data (S202); and looping the current viewpoint according to the viewpoint looping information (S204). A mechanism for allowing viewpoint looping is provided and information about the viewpoint looping is defined.

A system obtains a data set representing immersive video content for display at a display time, including first data representing the content according to a first level of detail, and second data representing the content according to a second higher level of detail. During one or more first times prior to the display time, the system causes at least a portion of the first data to be stored in a buffer. During one or more second times prior to the display time, the system generates a prediction of a viewport for displaying the content to a user at the display time, identifies a portion of the second data corresponding to the prediction of the viewport, and causes the identified portion of the second data to be stored in the video buffer. At the display time, the system causes the content to be displayed to the user using the video buffer.

Techniques described herein relate to a method for distributed data management. The method may include obtaining, by a data management agent of a data host and from an application executing on the data host, a request to access data; obtaining, by the data management agent, an information set associated with the data; making a determination, by the data management agent, that at least a portion of the data is not ready to be used by the application; and performing, by the data management agent and based on the determination, a data preparation action set.

The disclosed computer-implemented method includes determining that incoming media item requests are to be skewed from a random distribution among server nodes, using a random distribution algorithm, to a directed distribution among the server nodes. The method then includes identifying, in a loading assignment, which media items are to be loaded onto specific server nodes to produce the directed distribution of media item requests. The method next includes preloading the identified media items onto the server nodes according to the loading assignment and receiving media item requests for the preloaded media items. The method then includes routing the received media item requests to the server nodes using the random distribution algorithm, where the random distribution algorithm is skewed to the directed distribution based on the preloading of the media items according to the identified loading assignment. Various other methods, systems, and computer-readable media are also disclosed.

The disclosed computer-implemented method includes determining that incoming media item requests are to be skewed from a random distribution among server nodes, using a random distribution algorithm, to a directed distribution among the server nodes. The method then includes identifying, in a loading assignment, which media items are to be loaded onto specific server nodes to produce the directed distribution of media item requests. The method next includes preloading the identified media items onto the server nodes according to the loading assignment and receiving media item requests for the preloaded media items. The method then includes routing the received media item requests to the server nodes using the random distribution algorithm, where the random distribution algorithm is skewed to the directed distribution based on the preloading of the media items according to the identified loading assignment. Various other methods, systems, and computer-readable media are also disclosed.

A video stream processing method and apparatus are provided. The method includes obtaining an image set of a target person from a multi-channel video stream, the multi-channel video stream being obtained for a same scene by a plurality of cameras, and an image in the image set includes a front face image of the target person; determining a virtual viewpoint in a target-person view mode based on the image in the image set; and projecting, based on a depth map of a target image and a pose of a real viewpoint corresponding to the target image, the target image onto an imaging plane corresponding to the virtual viewpoint to obtain a video stream in the target-person view mode, the target image intersecting with a vision field of the target person in the multi-channel video stream.