Microsoft Technology Licensing, LLC

Sudhakar Visweswara Prabhu

Yongjun Wu

Shyam Sadhwani

Wenbo Zhang

Haoyun Wu

Travis Muhlestein

Nicholas Jie Fang

Todd Bowra

Ashley Speicher

Ryan Yonghee Kim

Saswata Mandal

Steven P Trombetta

Joanna Mason

Corey E Rogers

Glenn Frederick Evans

Adam M Smith

Stacey Spears

Jesse Daniel Kaplan

Christian Klein

Mark Gerard Kraus

Ziyad Ibrahim

James David McCaffrey

Dharmanshu Kamra

Alexander Robert Paul Grenier

Carol Greenbaum

David M Davis

Daniel James Carpenter

James David Mccaffrey

Ziyad Ahmad Ibrahim

Examples described herein generally relate to processing event logs where, for each of multiple events in an event log of the one or more event logs, a table of logged event instances can be generated for the event. For each of the multiple events, the table can be processed using an autoencoder to identify one or more of the logged event instances as anomalies, and an indication of at least a portion of the anomalies can be output. In addition, the event logs and/or corresponding tables of events can be used to train models for the autoencoders.

Techniques for detecting atypical events in event logs

A gaming console composites a camera video overlay on gameplay video for broadcasting such that the gameplay area that is rendered by the gaming console is not obscured, even when the camera video overlay is composited on the gameplay video for broadcasting. The gaming console or a companion device of the gaming console can also allow a user to specify placement of the camera video overlay on the gameplay video for broadcasting, permitting the user to choose the portion of the gameplay video for broadcasting that is obscured by the camera video overlay.

Positioning a camera video overlay on gameplay video

An adaptive video noise reduction (AVNR) engine reduces noise in streaming video. The engine reads embedded information in the streaming video describing attributes of the video, such as bit rate, frame rate, resolution, content type and quality of the streaming video. The information may be included in a manifest of the streaming video. Based on the video attributes, the engine outputs one or more input values to applications that reduce noise of the streaming video. The one or more applications may reduce mosquito, block, temporal, random and banding noise of the video in response to the input values from the engine.

Adaptive noise reduction engine for streaming video

A video game application is executed on a computer gaming device. While the video game application is providing active gameplay, the computer gaming device receives a command to broadcast the active gameplay. Responsive to the command, the computer gaming device broadcasts the active gameplay without interrupting the active gameplay.

Broadcast initiation without interruption to active gameplay

Disclosed herein are innovations in decoding compressed video media data. The disclosed innovations facilitate decoding operations with improved computational efficiency, faster speeds, reduced power, reduced memory usage, and/or reduced latency. In one embodiment, for example, an encoded bitstream of video media data is input from an external video content provider, the encoded bitstream being encoded according to a video codec standard. A decoder is then configured to decode the encoded bitstream based at least in part on supplemental information that identifies a property of the encoded bitstream but that is supplemental to the encoded bitstream (e.g., supplemental information that is not part of the encoded bitstream or its associated media container and that is specific (or related) to the application for which the bitstream is used and/or the standard by which the bitstream is encoded and/or encrypted).

Standard-guided video decoding performance enhancements

A graphics pipeline with components that process frames by portions (e.g., pixels or rows) or slices to reduce end-to-end latency. Components of a pipeline process portions of a same frame at the same time. For example, as graphics data for a frame is being generated and fills a framebuffer, once a certain portion of video data less than the whole frame (slice or sub-frame) becomes available, before the corresponding frame is finished filling the framebuffer, the next pipeline component after the framebuffer, for instance a video processor for color conversion or an encoder, begins to process the portion of the frame. While one portion of a frame is accumulating in the frame buffer, another portion of the same frame is being encoded by an encoder, and another portion of the frame might be being packaged by a multiplexer, and a network socket might start streaming the multiplexed portion.

Parallel processing of a video frame

Application- or context-guided video decoding performance enhancements

Techniques are described for split processing of streaming segments in which processing operations are split between a source component and a decoder component. For example, the source component can perform operations for receiving a streaming segment, demultiplexing the streaming segment to separate a video content bit stream, scanning the video content bit stream to find a location at which decoding can begin (e.g., scanning up to a first decodable I-picture, for which header parameter sets are available for decoding), and send the video content bit stream to the decoder component beginning at the location (e.g., the first decodable I-picture). The decoder component can begin decoding at the identified location (e.g., the first decodable I-picture). The decoder component can also discard subsequent pictures that reference a reference picture not present in the video content bit stream (e.g., when decoding starts with a new streaming segment).

Split processing of encoded video in streaming segments

In a video processing system including a video decoder, to handle frequent changes in the bit rate of an encoded bitstream, a video decoder can be configured to process a change in bit rates without reinitializing. The video decoder can be configured to reduce memory utilization. The video decoder can be configured both to process a change in bit rate without reinitializing while reducing memory utilization. In one implementation, the video processing system can include an interface between an application running on a host processor and the video decoder which allows the video decoder to communicate with the host application about the configuration of the video decoder.

Multiple bit rate video decoding

Data unit identification for compressed video streams is described. In one or more implementations, a compressed video stream is received at a computing device and a determination is made as to whether prior knowledge is available that relates to the compressed video stream. Responsive to the determination that prior knowledge is available that relates to the compressed video stream, the prior knowledge is employed by the computing device to perform data unit identification for the compressed video stream. In one or more implementations, SIMD instructions are utilized to perform pattern (0x00 00) search in a batch mode. Then a byte-by-byte search is performed to confirm whether the pattern, 0x00 00, found is part of a start code, 0x00 00 01, or not.

Data unit identification for compressed video streams

The scaling of a user interface according to network or device limitations is disclosed. One embodiment provides a method of scaling a user interface, comprising sending a user interface over a network to a networked device, detecting a performance limitation of the user interface in at least one of the network or the networked device, and scaling a parameter of the user interface in response to the detected limitation to improve the performance of the user interface. In this manner, a user interface may be scaled in response to limitations on performance and end-user experience can be improved.

Scalable user interface

The multi-location buffering of streaming media data is disclosed. One embodiment comprises buffering a first segment of media data associated with a current playback location, and buffering a second segment of media data associated with a seek point separated from the first segment of media data by a segment of unbuffered data. In this manner, data at seek points in the media stream may be buffered before a user requests a seek operation. Playback at a seek point may therefore begin with lessened or no perceived lag when a user inputs a seek command.

Growing community of inventors

Redmond, WA, United States of America

Sudhakar Visweswara Prabhu