Abstract: Live media distribution systems and methods enable scalable and efficient caching of live media content over computer networks. A live media backend generates video fragments for distribution to a content delivery network. The content may originally be streamed live by a live media source. The live media backend determines priority information for the video fragments and attaches a priority identifier to a data envelope for the video segments. The video fragments with the attached priority identifier are sent to a content delivery network. The content delivery network can access the attached priority identifier without analyzing the content of the video fragment to enable intelligent caching of video segments within the media distribution system.

Abstract: At least one trickplay source file is generated from original media content. Trickplay view files for rendering particular trickplay view rates are then generated from the trickplay source file.

Abstract: Zoom display navigation is described. In embodiments, a client device renders media content with a rendering system. A focus window is generated to display a section of the media content in the focus window that maintains a display resolution quality of the media content when the media content is displayed at a zoomed magnification level. Responsive to a navigation input, the focus window can be repositioned to a different section of the media content and/or the focus window can be zoomed to a different magnification level.

Abstract: At least one trickplay source file is generated from original media content. Trickplay view files for rendering particular trickplay view rates are then generated from the trickplay source file.

Abstract: Live media distribution systems and methods enable scalable and efficient caching of live media content over computer networks. A live media backend generates video fragments for distribution to a content delivery network. The content may originally be streamed live by a live media source. The live media backend determines priority information for the video fragments and attaches a priority identifier to a data envelope for the video segments. The video fragments with the attached priority identifier are sent to a content delivery network. The content delivery network can access the attached priority identifier without analyzing the content of the video fragment to enable intelligent caching of video segments within the media distribution system.

Abstract: At least one trickplay source file is generated from original media content. Trickplay view files for rendering particular trickplay view rates are then generated from the trickplay source file.

Abstract: Embodiments are disclosed herein that relate to multicast subscription based on forward error correction. One disclosed embodiment comprises a network-accessible server having a data-holding subsystem holding instructions executable by a logic subsystem to receive a content item, and form a first version of the content item having a first level of forward error correction and a second version of the content item having a second level of forward error correction. The instructions are further executable to stream the first version of the content item to a first multicast address, and while streaming the first version of the content item, stream the second version of the content item to a second multicast address.

Abstract: Embodiments are disclosed that relate to interactive online shopping experiences. For example, one embodiment provides a computing device configured to present an interactive shopping experience including receiving a user input requesting display of an interactive map of a retail store, and outputting to a display device the interactive map of retail store in response to the request. The embodiment further comprises receiving a user input requesting a first-person view of a portion of the interactive map of the retail store and outputting to the display device the first-person view of the portion of the interactive map of the retail store.

Abstract: Controllable device companion data is described. In embodiments, a companion utility is executed by a portable device to interface the portable device with a controllable device via a wireless network. The portable device can communicate a request to the controllable device to initiate the controllable device sending a data source to the portable device, which receives the data source from the controllable device via the wireless network. The portable device then monitors the data source for a trigger event that initiates an action at the portable device.

Abstract: Zoom display navigation is described. In embodiments, a client device renders media content with a rendering system. A focus window is generated to display a section of the media content in the focus window that maintains a display resolution quality of the media content when the media content is displayed at a zoomed magnification level. Responsive to a navigation input, the focus window can be repositioned to a different section of the media content and/or the focus window can be zoomed to a different magnification level.

Abstract: Embodiments are disclosed herein that relate to multicast subscription based on forward error correction. One disclosed embodiment comprises a network-accessible server having a data-holding subsystem holding instructions executable by a logic subsystem to receive a content item, and form a first version of the content item having a first level of forward error correction and a second version of the content item having a second level of forward error correction. The instructions are further executable to stream the first version of the content item to a first multicast address, and while streaming the first version of the content item, stream the second version of the content item to a second multicast address.

Abstract: User-annotated video markup is described. In embodiments, recorded video content can be rendered for display, and an annotation input can be received that is associated with a displayed segment of the recorded video content. The annotation input can be synchronized with synchronization data that corresponds to the displayed segment of the recorded video content, and then a video markup data file can be generated that includes the annotation input, the synchronization data, and a reference to the recorded video content.

Abstract: At least one trickplay source file is generated from original media content. Trickplay view files for rendering particular trickplay view rates are then generated from the trickplay source file.