An apparatus for delivering virtual reality data portions to a client device, including a processing unit configured to perform the following in each one of a plurality of iterations: (1) receive from a network a current orientation data indicating a current orientation of a client device, (2) apply a rotation to a segment of a sphere defined in a virtual reality (VR) video file according to the current orientation, (3) crop from the rotated segment of the sphere in an equirectangular projection format an extended field of view (EFOV) frame in the equirectangular projection format according to the current orientation, and (4) instruct the network to transmit the EFOV frame to the client device.

Methods, systems, and media for streaming video content using adaptive buffers are provided. In some embodiments, the method comprises: transmitting, from a user device to a server, a request to stream a video content item; receiving, at the user device from the server, a predicted abandonment distribution that indicates a plurality of likelihoods of a user of the user device stopping presentation of the video content item at a corresponding plurality of presentation time points of the video content item; receiving, at the user device from the server, a first portion of the video content item; storing the first portion of the video content item in a buffer of the user device having a first size; causing the video content item to be presented by the user device; determining a second size of the buffer based on the predicted abandonment distribution; modifying a size of the buffer to the second size; requesting a second portion of the video content item from the server based on the second size of the buffer; receiving the second portion of the video content item from the server; and storing the second portion of the video content item in the buffer of the second size while continuing presentation of the video content item.

A system and method for frame accurate editing of high resolution live video streams is disclosed. A method includes providing a low resolution video stream displayed in a first viewing portion of an edit user interface, wherein the low resolution video stream corresponds to a high resolution video stream of the live video content, receiving, via the viewing portion of the user interface, user input identifying a first start point and a first end point within the low resolution video stream, and transmitting the first start point and the first end point to a server to obtain a respective intermediate video segment of an intermediate resolution video stream corresponding to the high resolution video stream. The method further includes presenting the respective intermediate video segment in a second viewing portion of the edit user interface, the second viewing portion comprising a frame identifying section to identify frames corresponding to the first start point and the first end point, receiving user input identifying a second start point and a second end point from within the intermediate resolution video stream, and transmitting the second start point and the second end point to the server to obtain a respective high resolution video segment from the high resolution video stream for presentation to the user.

A method for managing the HTTP adaptive streaming of an item of digital content within a multimedia stream player terminal in a local communication network is disclosed, the multimedia stream player terminal being associated with a terminal for rendering the item of digital content. On detection of an active state of a screen saver mode of the rendering terminal, such a management method implements a progressive reduction of a video rendering quality of the streamed item of digital content, and maintains an audio rendering quality of the item of content.

Systems and methods for adaptive content streaming based on bandwidth are disclosed. According to one example method, content is requested for delivery. An indication of complexity of a plurality of media content items associated with the content is received. Based on the indication of complexity and an available bandwidth at the user device, at least one of the plurality media content items is selected and retrieved from the media server.

A method includes determining a first transmission rate for transmitting an entirety of a segment of a video stream to a client device. The segment includes a set of frames. In some implementations, the method includes, after transmitting a first subset of the set of frames at the first transmission rate, detecting that a network connectivity of the client device has reduced below a connectivity threshold associated with the first transmission rate. In some implementations, the method includes transmitting an entirety of the segment at a second transmission rate that is less than the first transmission rate. In some implementations, the method includes triggering the client device to present a second subset of the set of frames that corresponds to a temporal position in the video stream after the first subset of the set of frames while foregoing re-presentation of the first subset of the set of frames.

A remote storage digital video recorder (RSDVR) retains multiple copies of media programs so long as the copies are expected to be useful to at least one user. Rather than assigning copies to specific users at the time the program is recorded, copies can be assigned as the users request access to the particular media programs. Copies of unassigned programs can be deleted according to a schedule to reduce disk storage and processing demands on the system. A pool of program copies that are not initially assigned to particular users can be maintained until the user makes a specific request to view the program. This “late assignment” of program copies can substantially reduce the amount of data stored by the RSDVR system without substantially impacting the viewer experience.

A method for reducing artifacts in streaming video implemented by a computing device involves determining whether a video quality assessment score for a current segment of a channel of a video stream with a first resolution and a first bit rate meets a quality threshold, replacing the current segment with a replacement segment with a lower resolution than the first resolution, in response to the current segment failing to meet the quality threshold, and publishing the replacement segment at the first bit rate as part of the video stream.

Systems and methods for quick start-up of playback in accordance with embodiments of the invention are disclosed. Media content may be encoded in a plurality of alternative streams and a quick start-up stream. The quick start-up stream may include media content that is encoded at a lower quality that the alternative streams and may be encrypted with a different, less secure encryption process than that of the alternative streams. During a start-up of playback, the playback device streams the media content from a quick start-up stream until a metric, such as a decryption key for the alternative streams is met. The device then streams the media content from the alternative streams in response to the metric being met.

Provided are a method for realizing a video information preview, a client and a storage medium. The method for realizing a video information preview comprises: when it is detected that a progress bar is dragged, according to position information about dragging, positioning (100) corresponding preview information from a description file, wherein the description file is used for describing the preview information; and presenting (101) the positioned preview information.