A method is provided for managing key rotation (use of series of keys) and secure key distribution in over-the-top content delivery. The method provided supports supplying a first content encryption key to a content packaging engine for encryption of a first portion of a video stream. Once the first content encryption key has expired, a second content encryption key is provided to the content packaging engine for encryption of a second portion of a video stream. The method further provides for notification of client devices of imminent key changes, as well as support for secure retrieval of new keys by client devices. A system is also specified for implementing a client and server infrastructure in accordance with the provisions of the method.

A system and method for controlling the speed of operation of sexual stimulation devices from videos of sexual activity using a less computationally-intensive method of estimating movement speed from a video. In an embodiment, the system and method involve estimating movement in a video using pixel-by-pixel color change over time, calculating a rate of color change in the video, estimating a speed of movement in the video from the rate of color change, and applying an algorithm to convert the estimated speed of movement in the video to a speed of operation of a sexual stimulation device.

A system and method for controlling the speed of operation of sexual stimulation devices from videos of sexual activity using a less computationally-intensive method of estimating movement speed from a video. In an embodiment, the system and method involve estimating movement in a video using pixel-by-pixel color change over time, calculating a rate of color change in the video, estimating a speed of movement in the video from the rate of color change, and applying an algorithm to convert the estimated speed of movement in the video to a speed of operation of a sexual stimulation device.

This patent disclosure provides various embodiments of a client-server based digital video playback system and technique. In one aspect, a process for playing internet/online videos on a user device is disclosed. This process can begin by sending a video playback request for playing an online video to the server, wherein the video playback request includes a device type and a browser type of the user device. Next, the process receives a set of video playback addresses and a set of video playback configuration files from the server, wherein the set of video playback addresses and the set of video playback configuration files are generated based on the device type and the browser type. The process subsequently selects a video playback address from the set of video playback addresses corresponding to a transcoded version of the online video that matches a device version and a browser version of the user device. The process next obtains the transcoded version of the online video from the selected video playback address, and plays the obtained video on the user device.

This patent disclosure provides various embodiments of a client-server based digital video playback system and technique. In one aspect, a process for playing internet/online videos on a user device is disclosed. This process can begin by sending a video playback request for playing an online video to the server, wherein the video playback request includes a device type and a browser type of the user device. Next, the process receives a set of video playback addresses and a set of video playback configuration files from the server, wherein the set of video playback addresses and the set of video playback configuration files are generated based on the device type and the browser type. The process subsequently selects a video playback address from the set of video playback addresses corresponding to a transcoded version of the online video that matches a device version and a browser version of the user device. The process next obtains the transcoded version of the online video from the selected video playback address, and plays the obtained video on the user device.

Systems and methods are described to selectively stream content based on parental control ratings. At a client device, a manifest identifying sequential segments of a media asset and versions of a particular segment of the sequential segments may be received, and a graphical user interface may be generated for display to simultaneously depict a respective portion of each respective version of the particular segment and respective selectable options associated with each respective version of the particular segment. A selection of a first option may be received that is associated with a first version of the particular segment, and during playing of the media asset, in response to determining that the particular segment is the next segment to be played, the first version of the particular segment may be requested from the server.

Systems and methods are described to selectively stream content based on parental control ratings. At a client device, a manifest identifying sequential segments of a media asset and versions of a particular segment of the sequential segments may be received, and a graphical user interface may be generated for display to simultaneously depict a respective portion of each respective version of the particular segment and respective selectable options associated with each respective version of the particular segment. A selection of a first option may be received that is associated with a first version of the particular segment, and during playing of the media asset, in response to determining that the particular segment is the next segment to be played, the first version of the particular segment may be requested from the server.

The invention provides a method and a device for controlling video playback. The method includes: extracting playback time of a video clip taken for a predetermined scene from a video to be played; displaying a predetermined control corresponding to the playback time of the video clip taken for the predetermined scene on a video player playing the video; and controlling the video player to adjust a playback progress of the video to the playback time of the video clip taken for the predetermined scene to be played, when a trigger operation for the predetermined control is detected.

A system and method for providing quality control in immersive video during pausing of a video streaming session. In one embodiment, a paused video frame may comprise a plurality of mixed quality video tiles depending on user gaze vector information. Under pause control, the video quality of all tiles of the paused video frame is equalized such that it is of same value for all the video tiles, which may be the video quality of the tiles presented in a viewport of the client device. The paused video frame having the same quality tiles throughout is used as a replacement video frame, which is presented to the client device player for decoding and displaying instead of the mixed quality video frame while the streaming session is paused.

A system and method for providing quality control in immersive video during pausing of a video streaming session. In one embodiment, a paused video frame may comprise a plurality of mixed quality video tiles depending on user gaze vector information. Under pause control, the video quality of all tiles of the paused video frame is equalized such that it is of same value for all the video tiles, which may be the video quality of the tiles presented in a viewport of the client device. The paused video frame having the same quality tiles throughout is used as a replacement video frame, which is presented to the client device player for decoding and displaying instead of the mixed quality video frame while the streaming session is paused.