摘要:
A processing system includes an arithmetic logic unit (ALU) sub-system that allows data associated with a prior instruction to be preserved for use with a next instruction or subsequent instruction without having to reload the value using an intermediate register. The ALU sub-system includes a pair of ALUs communicatively cross-coupled with a pair of accumulators. The processing system also includes a data selector coupled to the ALU sub-system for use with memory contention prediction. The data selector includes a constant generator that controls storage of data associated with a previous instruction in a bypass element, and a selector to choose between data from a databus element and data stored in the bypass element.
摘要:
A processing system includes an arithmetic logic unit (ALU) sub-system that allows data associated with a prior instruction to be preserved for use with a next instruction or subsequent instruction without having to reload the value using an intermediate register. The ALU sub-system includes a pair of ALUs communicatively cross-coupled with a pair of accumulators. The processing system also includes a data selector coupled to the ALU sub-system for use with memory contention prediction. The data selector includes a constant generator that controls storage of data associated with a previous instruction in a bypass element, and a selector to choose between data from a databus element and data stored in the bypass element.
摘要:
A video processing system includes input and output address generators. The address generators are capable of generating linear addresses associated with data to be read from and written to a device. The linear address is converted to a random address so that data associated with a macroblock may be read from the device and written to the device.
摘要:
A novel architecture for implementing video processing features a data bus and a control bus. In an embodiment, data transfers between processing modules can take place over the data bus as mediated by a programmable memory copy controller, or through local connections, freeing up the control bus for instructions provided by a processor. A video decoder may be implemented in a system on chip with instructions provided by an off-chip processor. A semaphore or semaphore array mechanism may be used to mediate traffic between the various modules.
摘要:
A video processing system includes input and output address generators. The address generators are capable of generating linear addresses associated with data to be read from and written to a device. The linear address is converted to a random address so that data associated with a macroblock may be read from the device and written to the device.
摘要:
A system and method embed an audio signature in a video frame. An audio signature is generated from one bit a buffer input data. Two registers store an audio signature and reference count. According to an embodiment, the audio signature is generated left/right (L/R) interleaved with the left channel data in the most significant bit (MSB).
摘要:
A video processing system includes input and output address generators. The address generators are capable of generating linear addresses associated with data to be read from and written to a device. The linear address is converted to a random address so that data associated with a macroblock may be read from the device and written to the device.
摘要:
Devices, methods, and other embodiments associated with processing rasterized data are described. In one embodiment, an apparatus includes translation logic for converting lines of rasterized pixel data of a compressed image to a plurality of two-dimensional data blocks. The lines of rasterized pixel data are stored in consecutive memory locations. Each data block is stored in a consecutive memory location. The apparatus includes decompression logic for at least partially decompressing the compressed image based, at least in part, on the two-dimensional data blocks.
摘要:
A video compression scheme enables the user to select one of many video compression formats, including the widely-used standard video formats such as MPEG-1, MPEG-2, MPEG-4 and H.263. In one embodiment, the scheme is implemented as a hardware-software combination, with the hardware portion, preferably implemented as an ASIC chip, performing the core compression and the software portion dealing with the detailed formatting. In another embodiment, a 32-bit aligned transitional data format is used.
摘要:
A method, apparatus, computer medium, and other embodiments for discrete cosine transform and inverse discrete cosine transform (DCT/IDCT) of image signals are described. A DCT/IDCT module includes a plurality of different cores. One embodiment of a core includes two sets of lookup tables to provide multiplication and add operations for the DCT and IDCT functions. Another embodiment of a core include one set of lookup tables, while another embodiment of a core includes no lookup table. The DCT/IDCT module provides forward DCT and IDCT functionality without the use of additional multipliers.