Patent application number | Description | Published |
20110202695 | METHOD AND SYSTEM FOR PADDING IN A VIDEO PROCESSING SYSTEM - A method and system for padding an array of data on-the-fly in a direct memory access (DMA) controller. The method includes receiving the array of data in the DMA controller. The method also includes identifying edge groups of pixels at edges of the array of data and creating a padded region of data words along a periphery of the array of data. Each data word includes pixels of a corresponding edge group. The data words are then stored in a memory along with received array of data. Further, the method includes sending a request for padded data at a location in the memory, the padded data defining the array of data and the padded region of data words. Further, the method also includes translating the location of the padded data to addresses of one of, the data words and the array of data in the memory and retrieving the padded data at the addresses in the memory. | 08-18-2011 |
20140341271 | METHOD AND APPARATUS OF HEVC DE-BLOCKING FILTER - A method of de-blocking filtering a processed video is provided. The processed video includes a plurality of blocks and each block includes a plurality of sub-blocks. A current block of the plurality of blocks includes vertical edges and horizontal edges. The processed video further includes a set of control parameters and reconstructed pixels corresponding to the current block. A boundary strength index is estimated at the vertical edges and at the horizontal edges of the current block. The set of control parameters, the reconstructed pixels corresponding to the current block and partially filtered pixels corresponding to a set of adjacent sub-blocks are loaded. The vertical edges and the horizontal edges of the current block are filtered based on the boundary strength index and the set of control parameters such that a vertical edge of the current block is filtered before filtering at least one horizontal edge of the current block. | 11-20-2014 |
20140341287 | Sample Adaptive Offset (SAO) Filtering in Video Coding - A method for sample adaptive offset (SAO) filtering of largest coding units (LCUs) of a video frame in an SAO component is provided that includes receiving, by the SAO component, an indication that deblocked pixel blocks of an LCU are available, and applying SAO filtering, by the SAO component, to each pixel block of pixel blocks of an SAO processing area corresponding to the LCU responsive to the indication, wherein pixels of each pixel block of the SAO processing area are filtered in parallel. | 11-20-2014 |
20140341308 | OPTIMIZED EDGE ORDER FOR DE-BLOCKING FILTER - A de-blocking filter includes a reconstructed memory that is configured to store reconstructed pixels corresponding to a current macroblock of a video image to be filtered. The current macroblock includes a set of sub-blocks, each sub-block having horizontal edges and vertical edges. An internal pixel buffer in the de-blocking filter is configured to store pixels corresponding to the set of sub-blocks from the reconstructed memory, and to store partially filtered pixels corresponding to a set of partially filtered macroblocks. An edge order controller in the de-blocking filter is configured to load the pixels corresponding to the set of sub-blocks into a filter engine from the internal pixel buffer, to filter the set of sub-blocks, such that, at least one horizontal edge is filtered before filtering all vertical edges of the set of sub-blocks. | 11-20-2014 |
20150016499 | High Perfomance DMA Controller for Video Processors - This invention for a VDMA will enable ultra HD resolution (4K) encode/decode at 30 frames per second. This invention maximizes interconnect/DDR utilization and reduces CPU intervention using virtual alignment, sub-tile optimization, transaction breakdown strategy, 4D indexing, a dedicated interface with the host and frame padding. The VDMA has separate buffers for non-determinative synchronous data transfers and determinative asynchronous data transfers. | 01-15-2015 |
20150207974 | METHODS AND APPARATUS TO GENERATE WIDE DYNAMIC RANGE IMAGES - Methods and apparatus to generate wide dynamic range images are disclosed. An example apparatus includes a first processing block having first input, second input to receive input data from an image sensor, and first output; a second processing block having third input, fourth input to receive input data from the image sensor, and second output, at least one of the first and second outputs to output a WDR image based on at least two of the first, second, third and fourth inputs; an architecture recognizer having fifth input and third output, the third output to convey an architecture type of the image sensor; a function selector having fourth output to identify at least one of the first and second processing blocks based on the third output; and a sensor adapter having seventh input coupled to the fourth output and having fifth output coupled to the first and third inputs. | 07-23-2015 |
20150271494 | LOW POWER ULTRA-HD VIDEO HARDWARE ENGINE - A low power video hardware engine is disclosed. The video hardware engine includes a video hardware accelerator unit. A shared memory is coupled to the video hardware accelerator unit, and a scrambler is coupled to the shared memory. A vDMA (video direct memory access) engine is coupled to the scrambler, and an external memory is coupled to the vDMA engine. The scrambler receives an LCU (largest coding unit) from the vDMA engine. The LCU comprises N×N pixels, and the scrambler scrambles N×N pixels in the LCU to generate a plurality of blocks with M×M pixels. N and M are integers and M is less than N. | 09-24-2015 |
20150271512 | DYNAMIC FRAME PADDING IN A VIDEO HARDWARE ENGINE - A video hardware engine which support dynamic frame padding is disclosed. The video hardware engine includes an external memory. The external memory stores a reference frame. The reference frame includes a plurality of reference pixels. A motion estimation (ME) engine receives a current LCU (largest coding unit), and defines a search area around the current LCU for motion estimation. The ME engine receives a set of reference pixels corresponding to the current LCU. The set of reference pixels of the plurality of reference pixels are received from the external memory. The ME engine pads a set of duplicate pixels along an edge of the reference frame when a part area of the search area is outside the reference frame. | 09-24-2015 |