Abstract: A multi-tier scheduling approach includes a first tier comprising virtual cluster allocators that receive scheduling requests from processes and aggregate those requests and provide them to a second tier, namely a single resource distributor for the entire set of computing devices. The resource distributor, based on the requests from virtual cluster allocators, and also from information received from the computing devices themselves, generates a flow graph to identify an optimal scheduling of the assignment of resources to specific ones of the virtual clusters. Each virtual cluster allocator then, based on the assignment of resources assigned to it by the resource distributor, solves its own flow graph to identify an optimal scheduling of processes on the resources assigned.

Abstract: The claimed subject matter relates to various architectures that can, inter alia, facilitate creation of a synch file as well as facilitate interpretation of the synch file. Both creation and interpretation can be accomplished in conjunction with an original media asset. The synch file can include transformation commands that can operate on a presentation of the asset rather than upon the asset itself. Accordingly, what is actually perceived by a content consumer during a presentation of the asset need not be exactly what the asset creator fixed in a tangible medium. Rather, the content consumer can observe a derivative media presentation based upon interpretation of the synch file.

Abstract: Software interfaces are configured to enable functionality that is commonly implemented in special-purpose hardware for mixing AV content into a set of 2.5-D graphics planes to be exposed to high level processes executing in a computing environment in a fully portable manner. Illustratively, the interfaces include a planar mixer (named “IPlanarMixer”) that abstracts the mixing hardware, and a graphics plane interface (named “IPlane”) that abstracts individual instances of planes that are retrieved from, and handed off to the planar mixer as the 2.5-D graphics planes are built up and rendered in a computing environment to support interactive graphic experiences for a user.

Abstract: Applications are managed in an interactive media environment by the creation of a logical model for the lifetime of an application. The model is applicable to concurrently and/or consecutively running applications and governs the creation of applications, manipulation of applications by other applications, resource consumption, visibility of an application to a user, and application shutdown in the interactive media environment using the construct of application “state.

Abstract: Using declarative language application instructions, actions associated with playing interactive content of an interactive multimedia presentation are triggered based on a state change of a particular media object. Certain application instructions specify the characteristic of the media object, while other application instructions specify the actions associated with playing the interactive content (for example, when media objects are renderable, event generation, script execution, or changes in variables) based on a state change of the characteristic. The state change is detected by querying a structured representation of the application such as a document object model, which includes nodes associated with the application instructions, the media object, and/or the characteristic. When state changes are detected, one or more of the specified actions are triggered to thereby declaratively respond to the state change.

Abstract: An interactive multimedia presentation has a predetermined presentation play duration, a video content component (which may include video, audio, data, or any combination thereof), and an interactive content component. Methods and systems for playing the presentation include specifying a time when a particular media object is renderable. The time is specifiable using an application instruction that references either a first timing signal having a rate that is based on the play speed of the presentation, or a second timing signal having a continuous rate. One example of an application instruction usable as described above is an element associated with an XML data structure. An attribute of the element, such as the clock attribute, may be used to provide time values for the element that reference either timing signal. The attribute is used to maintain frame-accurate synchronization between the video and the interactive content components of the presentation.

Abstract: An arrangement is provided where all applications in an interactive media environment run on a single application thread in a media player. Event queues are utilized to schedule the application thread's processing of workitems corresponding to events that occur in the environment. Workitems include methods to be invoked when the workitem is processed and arguments for the method. Workitems further include a begin time and an end time and are ordered in the event queue first by begin time followed by the order in which they were inserted into the queue. The application thread marks workitems whose begin times corresponds to the current or previous time and then processes marked workitems from the queue in order. Such processing is committed so that once the application thread begins processing of a workitem it does not stop. Workitems are dropped from the event queue if their end times have been passed.

Abstract: A multi-tier scheduling approach includes a first tier comprising virtual cluster allocators that receive scheduling requests from processes and aggregate those requests and provide them to a second tier, namely a single resource distributor for the entire set of computing devices. The resource distributor, based on the requests from virtual cluster allocators, and also from information received from the computing devices themselves, generates a flow graph to identify an optimal scheduling of the assignment of resources to specific ones of the virtual clusters. Each virtual cluster allocator then, based on the assignment of resources assigned to it by the resource distributor, solves its own flow graph to identify an optimal scheduling of processes on the resources assigned.

Abstract: In an interactive media environment, a model is provided where applications, each comprising zero or more script components and zero or more markup components, are themselves handled as visual elements having a Z order. A resource-efficient rendering order is provided where the application that has focus in an interactive media environment (by virtue of its receipt of user events) is rendered first. The remaining applications are rendered in top down order, i.e., in reverse Z order. Rendering is performed by drawing into one or more graphics buffers associated with respective applications. Frames for applications are composited from the graphics buffers bottoms up, in Z order, to provide the display with the correct appearance.

Abstract: The claimed subject matter relates to various architectures that can, inter alia, facilitate creation of a synch file as well as facilitate interpretation of the synch file. Both creation and interpretation can be accomplished in conjunction with an original media asset. The synch file can include transformation commands that can operate on a presentation of the asset rather than upon the asset itself. Accordingly, what is actually perceived by a content consumer during a presentation of the asset need not be exactly what the asset creator fixed in a tangible medium. Rather, the content consumer can observe a derivative media presentation based upon interpretation of the synch file.

Abstract: The claimed subject matter relates to various architectures that can, inter alia, facilitate creation of a synch file as well as facilitate interpretation of the synch file. Both creation and interpretation can be accomplished in conjunction with an original media asset. The synch file can include transformation commands that can operate on a presentation of the asset rather than upon the asset itself. Accordingly, what is actually perceived by a content consumer during a presentation of the asset need not be exactly what the asset creator fixed in a tangible medium. Rather, the content consumer can observe a derivative media presentation based upon interpretation of the synch file.

Abstract: In an interactive media environment, input events are distributed to a plurality of applications where each application includes zero or more script components and zero or more markup files and has a Z order which corresponds to the position of the applications' visual elements on a display. An input event processing order is utilized where the application that has focus in an interactive media environment (by virtue of its receipt of user events) is provided with the first opportunity to consume the input event. If the focused application does not consume the input event, it is then delivered to the remaining applications in top down, inverse Z order. Each application is enabled with the ability to consume an input event, pass it on to lower Z ordered applications, hide it from lower Z ordered applications, or otherwise handle it. Input event processing stops when an application consumes the input event.

Abstract: Provided are arrangements for downloading resources and managing downloaded resources. A file is requested from a HTTP server, the file associated with an original URI. The file is downloaded and assigned a handle. The file is then stored in a storage location such as a file cache or in a persistent storage location. Upon command of an advanced content playlist or sequence, the file is called by calling the handle of the file. The storing of the file may include storing the file in a location where the file is subject to an automatic removal operation. The file may be an image file or any other type of file, especially multimedia files. The automatic removal operation may occur upon a quitting or restarting of the application. If another request is made for another file, the prior downloaded file may be replaced.

Abstract: Techniques and tools for supporting multiple operating systems in consumer electronic devices. For example, techniques and tools are described that allow quickly switching between operating systems in video disc players that support different media types while reducing wait time and mitigating possible negative impacts to user experience.

Abstract: The claimed subject matter relates to an architecture that can obtain biometric data from a user as the user interacts with a device. Based upon the obtained biometric data, the architecture can determine an identity of the user and automatically apply settings associated with that particular user to the device. The settings can relate to a physical configuration of the device (or aspects, features, and/or peripherals of the device), as well as to a data set employed by the device (or components of the device). As such, a user of the device can benefit from enhanced efficiency, utility, and/or convenience.

Abstract: Arrangements and methods are provided that allow integration of connected online services within a high-definition interactive framework, and in particular within an advanced content interactivity layer. In this way, the online services may enjoy enhanced features on an advanced content media device. For example, content running on an advanced content media device may be configured to detect an online service's feature and may thus present the user with additional features that interact with the online service. An advanced content media device may detect another user's advanced content media device through a network, and in particular a media service on the network, allowing chat and synchronized playback of content. Advanced content media devices may vary, but may include, e.g., a multimedia player, a media center, a game console, a personal computer, and so on.

Abstract: Timing for execution of certain user inputs and application instructions occurring during play of an interactive multimedia presentation is discussed. A current state is defined by a state of the presentation system at the time a current media sample is being played to a user. A predicted state is defined by a state of the presentation system one or more future play times. Examples of current and predicted states include media retrieval states and media presentation states. An instruction or user input that is based on the current state is identified, and the predicted state is used to determine an effect of the instruction or input. The effect may then be executed at a predetermined time, such as after the next playable media sample is played to the user.

Abstract: Playing an interactive multimedia presentation involves pre-rendering a media object at certain times based on a frame rate of the interactive content, a frame rate of the video content (which may include video, audio, data, or any combination thereof), and a play speed of the presentation. Certain actions taken include calculating a current elapsed play time representing an amount of the presentation's play duration that has passed. Based on the calculated time, a current interactive content presentation time is ascertained from an interactive content timeline. The interactive content timeline represents times at which the media object is presentable. A subsequent interactive content presentation time is selected from the interactive content timeline. The presentation state of the media object is predicted for the subsequent interactive content presentation time. The media object is pre-rendered within a time offset period before the subsequent interactive content presentation time occurs.

Abstract: Memory management techniques involve establishing a memory pool having an amount of sharable memory, and dynamically allocating the sharable memory to concurrently manage multiple sets of sequenced units of digital data. In an exemplary scenario, the sets of sequenced units of digital data are sets of time-ordered media samples forming clips of media content, and the techniques are applied when media samples from two or more clips are simultaneously presentable to a user as independently-controlled streams. Variable amounts of sharable memory are dynamically allocated for preparing upcoming media samples for presentation to the user. In one possible implementation, a ratio of average data rates of individual streams is calculated, and amounts of sharable memory are allocated to rendering each stream based on the ratio. Then, the sharable memory allocated to rendering individual streams is reserved as needed to prepare particular upcoming media samples for presentation to the user.

Abstract: A method is provided for analyzing a plurality of search sessions to identify intent-based clusters therein. Each session comprises at least one received query from a user and a corresponding set of returned search results, and each set of search results includes or refers to at least one piece of content. Each cluster represents a group of similar search sessions that are perceived as representing a common purpose and that can be mapped to a common set of search results. In the method, for each search session, each received query thereof, the corresponding set of search results, and whether any particular piece of content of the search results was acceptable to the user as responsive to the corresponding search session are identified. Thereafter, search sessions are grouped into clusters.