Patent application number | Description | Published |
20090323818 | ASYNCHRONOUS MEDIA FOUNDATION TRANSFORM - This disclosure describes methods, systems, and programming interfaces for more efficiently processing media data in a media pipeline. In one embodiment, media flow in a media system is coordinated using a media foundation transform supported by a programming interface. The programming interface generates input and output events to the requisite media system thereby permitting the media foundation transform control over when input frames are requested and received and output frames are retrieved. | 12-31-2009 |
20100150441 | Strategies for Processing Image Information Using a Color Information Data Structure - Strategies are described for processing image information using a data structure which conveys color information. The color information describes color-related formatting applied to the image information. The data structure can be passed down a video processing pipeline, where each functional component in the pipeline can draw color information from the data structure to improve the accuracy of its processing. Further, each component can supply previously unknown color information to the data structure for use by other (downstream) components in the pipeline. Exemplary fields of the data structure can include one or more of: a video transfer function field; a color primaries field; an image light field; a transfer matrix field; a nominal range field; and a video chroma sampling field. The transfer matrix field can be used to convert image information from one color space to another, such as a luma-related color space to an RGB-related color space. Processing operations can be performed on progressive and linear RGB image information. | 06-17-2010 |
20110170006 | Strategies for Processing Image Information Using a Color Information Data Structure - Strategies are described for processing image information using a data structure which conveys color information. The color information describes color-related formatting applied to the image information. The data structure can be passed down a video processing pipeline, which includes a video mixing renderer module, a device driver, and a graphics module. Each functional component in the pipeline can draw color information from the data structure to improve the accuracy of its processing. | 07-14-2011 |
20110298819 | HARDWARE-ACCELERATED COLOR DATA PROCESSING - Methods for mapping color data having at least one color associated therewith to an output device based on an input-device profile and an output-device profile, each profile having a tone curve and a color matrix, are provided. In one embodiment, the method includes receiving color data from an input device and determining whether the color data is in a linear space. If it is determined that the color data is not in a linear space, the method further includes applying the tone curve of the input device profile to the color data to convert it into a linear space. The method further includes converting the color(s) associated with the color data from the input linear space to an output linear space by applying the color matrix of the input device profile and the inverse color matrix of the output device profile to create color-converted image data. | 12-08-2011 |
20120141090 | METHODS AND SYSTEMS FOR PROCESSING DIGITAL DATA RATE AND DIRECTIONAL PLAYBACK CHANGES - Various methods and systems permit digital data, such as video data, audio/video data, audio/video/subpicture data and the like, to be processed in a manner that permits playback at different speeds in both forward and reverse directions. Various embodiments are also directed to handling playback rate changes in a manner that can enhance the experience of a user. | 06-07-2012 |
20120166816 | Auxiliary Functionality for Pixel Data - The various methods and systems described herein are directed to supplying a secure channel for software executing on a host computer. The methods and systems address and provide solutions for an attack model in which rogue software executing on the host computer attempts to inappropriately obtain or otherwise manipulate data. Some embodiments can provide pixel data that can be kept confidential (in that untrusted software applications cannot read the data off of the display screen). In addition, other embodiments can preserve the integrity of the pixel data by detecting whether the pixel data has been inappropriately manipulated. Various embodiments are based on a decryption engine that is located on a video card very late in the video processing chain such that programmatic access to decrypted pixel data is denied. | 06-28-2012 |
20140006981 | Strategies for Configuring Media Processing Functionality Using a Hierarchical Ordering of Control Parameters | 01-02-2014 |
20140314233 | PROTECTED MEDIA DECODING USING A SECURE OPERATING SYSTEM - Disclosed herein are representative embodiments of tools and techniques for facilitating decoding of protected media information using a secure operating system. According to one exemplary technique, encoded media information that is encrypted is received at a secure process of a secure operating system of a computing system. At least a portion of the encoded media information that is encrypted is decrypted in the secure process. The portion of the encoded media information includes header information. Additionally, the header information is sent from the secure operating system to a software decoder for control of decoding hardware. The software decoder is included in a process for an application. Also, the decoding hardware is securely provided access to the encoded media information for decoding of the encoded media information to produce decoded media information. | 10-23-2014 |