Computational resource allocation in an information stream decoder
AssigneeSarnoff Corporation
InventorsDinei Afonso Ferreira Florencio, Smith Freeman, Glenn Arthur Reitmeier
Life of this patent
Estimating the term…
Abstract
The invention comprises a method an apparatus for allocating processing resources in an information stream decoder in response to format indicia included within a compressed information stream. Specifically, the invention comprises an apparatus and method for decoding a video stream having an associated source video format to produce a decoded video stream having the same format or a different format, in which a computational resource is allocated in response to a change in format between the associated video format and the resultant video format.
Claims29
In a system for decoding a compressed video stream, a method for comprising the steps of:
- identifying a source format of said compressed video stream;
- generating, based upon at least said identified source format, one or more signals indicative of a computational resource requirement suitable for processing said compressed video stream to produce a decompressed video stream having an output format;
- allocating, in response to said generated signals indicative of the computational resource requirement, computational resources for performing at least an inverse discrete cosine transform (IDCT);
- and
- processing said compressed video stream to produce said decompressed video stream having said output format.
In a system for decoding a compressed video stream, a method for allocating computational resources comprising the steps of:
- identifying a source format of said compressed video stream;
- generating, based upon at least said identified source format, one or more signals indicative of one or more computational resource requirements suitable for processing said compressed video stream to produce a decompressed video stream having an output format;
- allocating, in response to said generated signals indicative of the one or more determined computational resource requirements, said computational resource;
- and
- processing, using said one or more allocated computational resources, said compressed video stream to produce said decompressed video stream.
Apparatus for processing a compressed video stream having a source video format to produce a decompressed video stream having an output video format, comprising:
- a decoder, including allocable computational resources for performing at least one of an inverse discrete cosine transform (IDCT) function, for decoding said compressed video stream to produce a decoded video stream, said decoded video stream comprising a plurality of pixel blocks;
- and
- a controller, for receiving source video format information, generating one or more signals indicative of the computational resources and adapting said allocable computational resources in response to said generated signals and said output format of said decompressed video stream.
Dependencies are inferred from the claim text.