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Hardware multi-standard video decoder device

A video decoder and hardware decoding technology, applied in the field of video decoding, can solve the problems of not being able to decode multiple video streams at the same time, consuming too much power, and high processing overhead

Inactive Publication Date: 2008-12-10
NVIDIA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Programmable core video decoders typically have high processing overhead, are inefficient, and consume significantly more power than single-standard hardware video decoders
Furthermore, the programmable core video decoder cannot continuously provide real-time video decoding because the decoding is dominated by the processing requirements of the overall computer system
[0007] Consequently, currently available digital video decoders are not capable of providing real-time video decoding for a number of widely used video coding standards
Furthermore, currently available digital video decoders are not capable of providing simultaneous video decoding for multiple streams encoded using a number of widely used video coding standards
Furthermore, currently available digital video decoders are not capable of simultaneously decoding multiple video streams, at least one of which needs to be decoded in real-time

Method used

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Embodiment Construction

[0031] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the preferred embodiments, it will be understood that it is not intended to limit the invention to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the embodiments of the present invention, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, one skilled in the art will recognize that the invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily ...

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Abstract

The present invention provides a hardware multi-standard video decoder device. A command parser accesses a video stream and identifies a video encoding standard used for encoding the video stream. A plurality of hardware decoding blocks perform operations associated with decoding the video stream, wherein different subsets of the plurality of hardware decoding blocks are used for decoding video streams encoded using different video encoding standards.

Description

technical field [0001] The field described herein involves video decoding. More particularly, the present invention relates to a hardware multi-standard video decoder arrangement. Background technique [0002] Digital video streams are typically encoded using one of a number of different encoding standards. For example, a digital video stream can be compressed for conversion into a data format that requires fewer bits. This compression can be lossless, such that the original video stream can be recreated after decoding, or lossy, such that an exact replica of the original video stream cannot be recreated, but where decoding of the compressed data is more efficient. [0003] Currently, a large number of video coding standards exist, and new standards are emerging all the time. Examples of current video coding standards include JPEG (Joint Photographic Experts Group), MPEG (Motion Picture Experts Group), MPEG-2, MPEG-3, MPEG-4, H.263, H.263+, H.264 and e.g. Proprietary sta...

Claims

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Application Information

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IPC IPC(8): H04B1/66
CPCH04N19/42H04N19/436H04N19/44H04N19/60H04N19/61
Inventor 伊格修斯·B·钱德拉苏维塔哈里克里什纳·M·雷迪约莱·莫卡加塔
Owner NVIDIA CORP
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